KR20180131548A - Shipbuilding desulfurization device, Hull-type integrated desulfurization device, Installation method of ship and hull type integrated desulfurization device for ship - Google Patents

Abstract

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generating apparatus mounted on a ship, comprising: an internal space having a longitudinal direction and defining an internal space at one end in the longitudinal direction, And an exhaust gas introducing device for introducing the exhaust gas discharged from the exhaust gas generating device to the absorption tower main body part. When the maximum length in the longitudinal direction of the internal space of the absorption tower body portion is L and the maximum width in the width direction orthogonal to the longitudinal direction of the internal space of the absorption tower body portion is W, (W: L) of the maximum length (L) to the maximum length (L) is more than 1: 1.1 and not more than 1: 6.0.

Description

Shipbuilding desulfurization device, Hull-type integrated desulfurization device, Installation method of ship and hull type integrated desulfurization device for ship

BACKGROUND OF THE INVENTION 1. Field of the Invention The present disclosure relates to a ship desulfurization apparatus, a ship equipped with the ship desulfurization apparatus, a hull integral type desulfurization apparatus, a ship in which a part of a hull structure is formed by the integral hull type desulfurization apparatus, will be.

With the recent tightening of emission regulations for ships, the use of fuel oil with a sulfur content of 0.1% or less, or alternative measures with equivalent effect, is mandatory in the emission control area (ECA area). In addition, in 2020, the use of fuel oil with a sulfur content of 0.5% or less, or alternative measures with equivalent effect, is obligatory in the general sea area. Conventionally, for example, in ultra-large vessels such as ULCS (Ultra Large Container Ship), it has been dealt with by using low-sulfur fuel oil with low sulfur content.

The amount of exhaust gas (the amount of exhaust gas at 100% load) discharged from the main engine of the super large ship reaches 200,000 Nm3 / h or more, for example. In addition, a plurality of power generation engines and boilers are installed in the super large ships in order to meet various power demand and the like on the ship. Therefore, a desulfurization device mounted on a super large-sized vessel requires an absorption tower having a large passage area in order to desulfurize a large amount of exhaust gas discharged from these main engines or a plurality of power generation engines / boilers. If it is intended to cope with this with a conventional desulfurization apparatus for a cyclic pipe mounted on a relatively small vessel such as a bulk carrier, it is necessary to arrange a plurality of absorption towers, And enlargement and the like are caused.

Further, conventionally, a relatively small desulfurization device for a cyclic pipe uses an annular (circular) absorption tower, and it is also conceivable to enlarge this annular absorption tower for a super large-sized ship. However, since the annular absorption tower is liable to generate a dead space when it is disposed in a ship, as compared with a quadrangular absorption tower or the like, there arises a problem that the arrangement efficiency is deteriorated when it is disposed in the ship.

In order to solve the above problems, it is conceivable to adopt a squash absorbing tower having a track record in a desulfurization apparatus for land use such as a plant facility or a factory as an absorption tower of a desulfurization apparatus for a super large-sized ship. For example, Patent Document 1 discloses a wet cleaning apparatus for removing contaminants such as particulate matter, noxious gas, acidic compound, and odor generated in a manufacturing process, an industrial process, and a commercial process, (Absorption tower) is disclosed.

Japanese Patent No. 5631985 Japanese Patent Application Laid-Open No. 9-239233

A large number of square type absorption towers used in the land desulfurization apparatus have a length L in the exhaust gas introduction direction and a length W in the direction orthogonal to the exhaust gas introduction direction in the internal space of the absorption tower , The ratio of W to L (W: L) is in the range of 1: 0.2 to 1: 1.0. That is, the planar shape of the absorption tower is formed into a rectangular shape having a width direction along the exhaust gas introduction direction and a longitudinal direction along a direction orthogonal to the exhaust gas introduction direction. This is because, when the exhaust gas is formed in a shape having a longitudinal direction along the exhaust gas introduction direction, the gas flow velocity is greatly changed in the longitudinal direction (on the side of the exhaust gas inlet) and on the inside (on the side opposite to the exhaust gas inlet) This makes it difficult to uniformly flow the exhaust gas. If the flow of the exhaust gas in the absorption tower becomes nonuniform, there is a possibility that the desulfurization performance is lowered, for example, unevenness occurs in the desulfurization treatment in the absorption tower.

In order to cope with such a problem, in the cleaning apparatus of the above-described Patent Document 1, an exhaust gas inlet is formed at the upper end of the absorption tower, and the exhaust gas introduced from the exhaust gas inlet is vertically Is introduced into the gas distribution chamber formed in the lower portion of the absorption tower through the exhaust gas duct extending so as to uniformly flow the exhaust gas in the absorption tower.

However, in the case where the absorption tower disclosed in Patent Document 1 is intended to be dedicated to an absorption tower for a super large-sized ship, there arises a problem of some arrangement constraints as shown below.

First, it is confirmed that the planar shape of the absorption tower disclosed in Patent Document 1 is approximately square (W: L = 1: 1). However, in a super large ship of, for example, ULCS, There is a case that the absorption tower having a planar shape having a longitudinal direction along the direction is excellent in the placeability.

Secondly, in the cleaning tank disclosed in Patent Document 1, as described above, an exhaust gas duct vertically extending in the absorption tower and a gas distribution chamber formed in the lower portion of the cleaning tank are formed. For this reason, there is a problem that the volume of the absorption tower becomes larger as much as the exhaust gas duct or the gas distribution chamber is formed.

Thirdly, in many cases, the absorption tower for marine vessels is formed protruding upward from the upper deck, while the main engine, which is the main exhaust gas emission source, is disposed in the engine room located below the inside of the hull. In short, the absorption tower is often disposed above the main engine in the ship. Therefore, in the absorption tower of Patent Document 1, it is necessary to intentionally guide the exhaust gas discharged from the main engine not to the side end portion of the absorption tower but to the upper end portion beyond the side end portion. There is a problem that it is lost.

Further, Patent Document 2 shows a desulfurizing apparatus having a rectangular absorption tower mounted on a ship (Figs. 3 and 4). However, the absorption tower of Patent Document 2 is not mounted on a tanker (main line) but mounted on a barge towed to the main line. Problems in arrangement constraints when the desulfurizer is disposed on a ship (main line) Means have not been disclosed at all.

The present invention has been developed under the background as described above, and at least one embodiment of the present invention is intended to provide a marine desulfurization apparatus having an excellent arrangement of a marine vessel such as a super large ship .

(1) In a ship desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower including an absorption tower body portion defining an internal space having a longitudinal direction and formed with an exhaust gas inlet at one side end portion in the longitudinal direction communicating with the internal space;

And an exhaust gas introducing device for introducing the exhaust gas discharged from the exhaust gas generating device to the absorption tower main body part,

The maximum length in the longitudinal direction of the internal space of the absorption tower body portion is L,

When the maximum width in the width direction orthogonal to the longitudinal direction of the internal space of the absorption tower body portion is W,

(W: L) of the maximum width (W) to the maximum length (L) is more than 1: 1.1 and not more than 1: 6.0.

The ship desulfurization apparatus according to the embodiment described in (1) above defines an internal space having a longitudinal direction, and has an exhaust gas inlet formed at a side end portion in the longitudinal direction on one side in communication with the internal space And an absorption tower including a tower body portion. That is, the internal space of the absorption tower body portion is configured to have a longitudinal direction along the exhaust gas introduction direction. Because of this, dead space is not generated well in comparison with a conventional annular absorption tower, and therefore, the arrangement of the vessel in a ship is excellent. Further, it is possible to provide a desulfurization apparatus for marine vessels excellent in the arrangement of, for example, ULCS or the like (for an ultra-large vessel of which the absorption tower having a planar shape having a longitudinal direction along the exhaust gas introduction direction is excellent in placement property) have. The risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine dust can be reduced as compared with the case where the inner space of the absorption tower body portion has the longitudinal direction along the direction orthogonal to the exhaust gas introduction direction.

According to the embodiment of (1), the ratio of the maximum width W to the maximum length L of the internal space is in the range of more than 1: 1.1 and not more than 1: 6.0. By setting the upper limit of the ratio (W: L) of the maximum width (W) to the maximum length (L) of the inner space to 1: 6.0 as described above, the unevenness of the exhaust gas flow in the absorption tower Within the limits of practical use as reviewed.

(2) In some embodiments, in the ship desulfurization apparatus described in (1) above, the ratio (W: L) of the maximum width (W) to the maximum length (L) 2.0 or less.

The upper limit of the ratio (W: L) of the maximum width (W) to the maximum length (L) in which the uniformity of the exhaust gas flow in the absorption tower can be maintained in a desirable state is 1: 2.0. On the other hand, in consideration of the arrangement of the desulfurizer in the ship, the ratio of the maximum width W to the maximum length L is preferably large to some extent, and the maximum width W and the maximum length L L (W: L) of 1: 1.5 is preferable. Therefore, according to the embodiment (2), it is possible to provide a marine desulfurization apparatus that is excellent both in terms of batch property and desulfurization property and has good balance.

(3) In some embodiments, in the ship desulfurization apparatus described in (1) or (2) above, the absorption tower is arranged so that the longitudinal direction of the inner space of the absorption tower body portion is along the width direction of the ship, Lt; / RTI >

For example, in a very large-sized ship such as ULCS, an absorption tower having a longitudinal direction along the starboard-port direction (width direction) of the ship, which is a direction perpendicular to the fore-aft direction of the ship, May be superior. For example, in the above-described ULCS, the hull is divided into a plurality of areas each having a length capable of accommodating a 40-foot container along the longitudinal direction of the container in the fore-aft direction, It may be necessary to dispose the absorption tower in the region. Therefore, according to the embodiment (3), the arrangement of the ship is excellent.

According to the embodiment (3), since the absorption tower body portion can be configured to have a longitudinal direction along the width direction of the ship, as compared with the absorption tower having the longitudinal direction along the forward-aft direction of the ship, The bending stress acting on the absorber during the horizontal swing (rolling) of the absorber can be made small, so that an absorber having high resistance to rolling can be obtained.

(4) In some embodiments, in the ship desulfurization apparatus described in (3) above, the ship is a steel plate structure for discharging the exhaust gas discharged from the exhaust gas generator to the outside, And a longitudinally formed steel plate structure having a longitudinal direction. The absorption tower is disposed inside the steel plate structure.

According to the embodiment (4), by arranging the absorption tower on the inner side of the long normal steel plate structure having the longitudinal direction along the width direction of the ship, the influence on the layout plan of other equipment installed on the ship Can be minimized. Therefore, retrofits for existing vessels are facilitated. Further, by disposing the absorption tower on the inner side of the steel plate structure, the installation workability and maintenance are also excellent, as compared with, for example, the case where the absorption tower is disposed inside a vessel such as an engine room.

(5) In some embodiments, in the ship desulfurization apparatus described in (4) above, an arrangement recovery device for recovering thermal energy from the exhaust gas discharged from the exhaust gas generator is disposed inside the steel plate structure have. Further, the absorption towers are arranged side by side along the width direction of the ship and the arrangement recovery device.

According to the embodiment (5), as compared with the case where the absorber and the absorber are disposed at distant places from each other by disposing the absorber and the absorber collectors at the inner side of the steel plate structure side by side along the width direction of the ship, The exhaust gas introducing device can be constructed simply.

(6) In some embodiments, in the ship desulfurization apparatus described in (5) above, the absorption tower has one end connected to the exhaust gas inlet of the absorption tower body portion and the other end extending upward from the one end toward the other end And further includes an exhaust gas introducing portion that is extended.

According to the embodiment (6), the absorption tower further includes an exhaust gas introduction portion extending upward from the exhaust gas inlet of the absorption tower body portion. Therefore, by connecting the exhaust gas introducing line to the other end of the exhaust gas introducing portion, the exhaust gas can be introduced into the absorption tower arranged in a narrow space inside the steel plate structure.

(7) In some embodiments, in the ship desulfurization apparatus described in (6) above, the exhaust gas generating apparatus includes a main engine and an auxiliary engine. The exhaust gas introducing device includes an exhaust gas introducing pipe extending from the side of the exhaust gas recirculating device toward the other end of the exhaust gas introducing portion and extending along the width direction of the ship and an exhaust gas inlet pipe connected to the exhaust gas introducing pipe, And an auxiliary gas exhaust gas introducing pipe for introducing the gas into the absorption tower main body through the exhaust gas introducing pipe.

According to the embodiment (7), the exhaust gas discharged from the main engine and the auxiliary engine can be introduced into the absorption tower arranged in a narrow space inside the steel plate structure.

(8) In some embodiments, in the ship desulfurization apparatus according to any one of the above (1) to (7), the absorption tower main body portion includes a pair of A long side wall surface, and a pair of short side wall surfaces extending parallel to each other along the width direction of the internal space.

According to the embodiment (8), the planar shape of the inner space of the absorption tower body is formed in a rectangular shape defined by a pair of long side walls and a pair of short side walls. Since the absorption tower body portion having such a rectangular internal space does not generate a dead space when it is disposed in the ship, the arrangement efficiency in placing the ship inside the ship is excellent.

(9) In some embodiments, in the ship desulfurization apparatus described in (8) above, the absorption tower main body portion is formed with a storage space in which the cleaning liquid dispersed with respect to the exhaust gas induced in the internal space is stored do. The absorption tower body portion has a transverse member which connects a pair of long side wall surfaces and traverses the storage space along the width direction of the inner space.

According to the embodiment (9), when sloshing having a large undulation occurs in the surface of the cleaning liquid stored in the storage space due to horizontal shaking of the ship or the like, fluctuation of the liquid level is suppressed by the transverse member . Further, by forming the transverse member connecting the pair of long side wall surfaces, it is possible to improve the strength of the absorption tower body portion having the rectangular internal space.

(10) In some embodiments, in the ship desulfurization apparatus described in (9), the transverse member is composed of a girder member having an elongated shape.

According to the embodiment (10), the sloshing suppressing effect and the reinforcing effect of the absorbing column body portion can be realized by the girder member having a long shape.

(11) In some embodiments, in the ship desulfurization apparatus described in (9), the transverse member is a plate member having a flat plate shape.

According to the embodiment (11), the above-described sloshing suppressing effect and the reinforcing effect of the absorbing column body portion can be realized by the plate member having the flat plate shape.

(12) In some embodiments, in the ship desulfurization apparatus according to any one of (8) to (11), the ship desulfurization apparatus is characterized in that the desulfurization apparatus for ship has a structure in which a cleaning liquid is sprayed And the like. The dispersing device has a longitudinal water spray pipe extending in parallel with each of the pair of long wall surfaces in the inner space of the absorption tower body and a plurality of water spray nozzles formed in the longitudinal water spray pipe.

According to the embodiment (12), the distance from each of the plurality of spray nozzles formed in the longitudinal spray pipe to the long wall surface can be made constant. This makes it possible to uniformly disperse the cleaning liquid in the inner space, thereby suppressing the influence of the problem that the dispersion of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship.

(13) In some embodiments, in the marine desulfurization apparatus described in any one of (8) to (11), the marine desulfurization apparatus may further include a desulfurization apparatus for desorbing the exhaust gas, And a dispersing device for dispersing the cleaning liquid. The spreading device includes a plurality of width direction spray pipes extending parallel to each of the pair of short wall surfaces in the inner space of the absorption tower body portion and arranged at equal intervals, And at least one water spray nozzle formed in the spray nozzle.

According to the embodiment (13), the scattering areas of the spray nozzles formed in each of the plurality of width direction spray pipes can be set to be the same. This makes it possible to uniformly disperse the cleaning liquid in the inner space, thereby suppressing the influence of the problem that the dispersion of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship.

(14) In some embodiments, in the marine desulfurization apparatus described in any one of (1) to (13), the exhaust gas generating apparatus includes a main engine. The exhaust gas amount of the main engine (the amount of exhaust gas at 100% load) is 200,000 Nm3 / h or more.

The ship desulfurization apparatus described in (1) to (13) is preferably used as a desulfurization apparatus for a very large-sized ship having an exhaust gas amount of 200,000 Nm3 / h or more in the main engine. The upper limit of the exhaust gas amount of the main engine is not particularly limited, but is practically 500,000 Nm3 / h or less.

(15) In some embodiments, in the ship desulfurization apparatus described in any one of (1) to (14), the ship is composed of a container ship having a container loading capacity of 10,000 TEU or more.

The ship desulfurization apparatus described in (1) to (14) is preferably used as a desulfurization apparatus for ultra-large container ships (ULCS) having a container loading capacity of 10,000 TEU or more. The upper limit of the container loading volume is not particularly limited, but is practically 20,000 TEU or less.

(16) A ship according to an embodiment of the present invention is equipped with the ship desulfurization apparatus described in any one of (1) to (15) above.

(17) In a ship desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower including an absorption tower body portion defining an internal space;

A scattering device capable of scattering the cleaning liquid in the exhaust gas flowing in the internal space,

And a filling material filled in the filling layer formed in the inner space, the filling material being configured to bring the washing liquid into vapor-liquid contact with the exhaust gas passing through the filling layer.

In the ship desulfurization apparatus according to the embodiment described in (17), when the exhaust gas flows between the fillers filled in the filler layer, the cleaning liquid having a larger contact area on the surface of the filler and the exhaust gas, Liquid contact can be made. According to such a ship desulfurization apparatus, since the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas can be increased by the filler, the sulfur contained in the exhaust gas can be effectively removed as compared with the case where the filler is not provided.

(18) In some embodiments, in the ship desulfurization apparatus described in (17) above, at least a part of the wall surface other than the wall surface partitioning the filling layer in the wall surface defining the internal space of the absorption tower body portion, Layer. A method layer is not formed on a wall surface of the absorption tower main body portion that divides the packed bed.

In the marine desulfurization apparatus, since hot exhaust gas flows in the absorption tower body portion, there is a possibility that the wall surface (inner wall surface) defining the internal space of the absorption tower body portion is corroded by the sulfur contained in the exhaust gas. Further, when seawater is used as the cleaning liquid, there is a fear that the above-mentioned wall surface or the like is corroded by seawater. Generally, in order to protect the above-described wall surface, it is conceivable to form a corrosion layer over the entire surface of the wall surface described above. However, there is a fear that the filling material moves due to the shaking of the ship, collides with the method layer for protecting the wall surface partitioning the packed bed, and peeling or damaging the method layer. Detachment or damage of the method layer may cause corrosion of the wall surface protected by the method layer.

In the ship desulfurization apparatus according to the embodiment described in (18) above, a method layer is formed on a wall surface (inner wall surface) defining an inner space of the absorption tower main body portion on a wall surface other than the wall surface partitioning the filling layer. When the method layer is formed on the wall surface partitioning the packed bed, there is a fear that the packed material moves due to the shaking of the ship and collides with the method layer to peel or damage the method layer. Instead, the layered portion surrounding the packed bed in the absorber main body portion is made of a corrosion-resistant material such as stainless steel, for example, to suppress corrosion of the wall surface. Such a desulfurization apparatus for marine vessels can prevent corrosion of a wall surface defining an inner space while preventing damages of a method layer by a filling material.

(19) In some embodiments, in the ship desulfurization apparatus described in (17) or (18) above, the filling material is a regular filling material.

In the ship desulfurization apparatus according to the embodiment described in (19) above, since the filling material is a regular filling material, the pressure loss of the exhaust gas can be reduced as compared with the case where the filling material is a random filling material, can do. Therefore, in the ship desulfurization apparatus using the regular packing as a filling material, the absorption tower can be downsized as compared with the ship desulfurization apparatus using the irregular packing as a filling material. In addition, the regular filling material does not move well due to the shaking of the ship as compared with the irregular filling material, and is unlikely to be unevenly arranged due to the shaking of the ship. Therefore, the marine desulfurization apparatus using the regulated packing as the packing can reduce the risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine sulfur, as compared with the marine desulfurization apparatus using the irregular packing as the filling material.

(20) In some embodiments, in the marine desulfurization apparatus according to any one of (17) to (19), the absorption tower main body section is constituted such that the exhaust gas flows from the lower side to the upper side in the vertical direction . The spraying device is configured to spray the cleaning liquid upward.

The spray device in the embodiment described in (20) above is configured to spray the washer fluid upward. The cleaning liquid sprayed upward is dispersed at the upper end (apex portion) and then finely falls to exist in the inner space, for example, dispersed on the surface of the packing. When the exhaust gas flows from the lower side to the upper side in the vertical direction, the exhaust gas is removed by the gas-liquid contact with the cleaning liquid adhering to the surface of the packing or the cleaning liquid falling.

(21) In a ship desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower body including an absorption tower main body portion defining an internal space and configured to allow the exhaust gas to flow through the internal space and a light permeable sight window capable of viewing the internal space from the outside of the absorption tower body portion, Respectively.

The absorption tower in the embodiment described in (21) includes an absorption tower main body portion configured to allow the exhaust gas to flow through the internal space, and a light permeable sight window capable of visually recognizing the internal space from the outside of the absorption tower main body portion do. In the ship desulfurization apparatus having such an absorption tower, the operator or the like can confirm the flow of the exhaust gas flowing through the inside space, for example, through the sight window.

(22) In some embodiments, in the ship desulfurization apparatus according to (21), the inner space has a longitudinal direction. The absorption tower body portion has an exhaust gas inlet which communicates with the internal space at an end portion on one side in the longitudinal direction. Further, the visibility window is formed on the other side in the longitudinal direction.

If the inner space has a longitudinal direction, the gas flow rate greatly varies between the exhaust gas inlet side and the exhaust gas inlet side, and the flow of the exhaust gas in the absorption tower may become uneven. The absorption tower body portion in the embodiment described in (22) above has an exhaust gas inlet which communicates with the internal space at one end of the longitudinal direction of the internal space in the longitudinal direction. The view window is formed on the other side in the longitudinal direction of the internal space. A worker or the like can confirm the flow of the exhaust gas on the opposite side of the exhaust gas inlet through the sight window if it is difficult to confirm in the sight window formed on the exhaust gas inlet side.

(23) In some embodiments, in the ship desulfurization apparatus according to (21) or (22), the ship desulfurization apparatus further comprises a dispersion apparatus capable of dispersing the cleaning liquid in the exhaust gas flowing in the internal space . The spraying device has a spray nozzle capable of spraying the cleaning liquid into the inner space. The visibility window is disposed at a position where the scattering state of the cleaning liquid from the spray nozzle can be visually recognized.

Since the sight window in the embodiment described in (23) above is arranged at a position where the scattering state of the cleaning liquid from the spray nozzle can be visually recognized, the operator can visually confirm the spray state of the cleaning liquid by the spray nozzle The scattering state of the cleaning liquid by the scattering device can be confirmed. When the scattering condition of the cleaning liquid by the dispersing device is bad, cleaning of the spraying nozzle or the like can improve the dispersion situation by the dispersing device.

(24) In some embodiments, in the ship desulfurization apparatus according to (23), the absorption tower main body portion is configured so that the exhaust gas flows upward from below in the vertical direction, And a mist eliminator formed in the inner space above the spray nozzle. The visibility window is disposed above the spray nozzle and below the mist eliminator.

The absorption tower body portion in the embodiment described in (24) above is configured so that the exhaust gas flows upward from below in the vertical direction. The sight window is disposed above the spray nozzle and below the mist eliminator. Since the exhaust gas is in gas-liquid contact with the cleaning liquid below the mist eliminator, even if a sight window is formed above the mist eliminator, the scattering state of the cleaning liquid by the dispersion apparatus can not be confirmed. By setting the sight window to the above-described arrangement, the operator can confirm the scattering state of the cleaning liquid by the scattering apparatus through the sight window. Particularly, when the spray nozzle is configured to spray the cleaning liquid upward, the operator confirms the top of the cleaning liquid scattered by the dispersing device through the above-described visibility window to confirm whether the dispersion state of the cleaning liquid is appropriate .

(25) In a ship desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower including an absorption tower body portion defining an internal space;

And a dispersing device capable of dispersing the cleaning liquid in the exhaust gas flowing in the internal space,

The spray device has a spray pipe extending in the inner space of the absorption tower body and a plurality of spray nozzles arranged at a predetermined interval in the spray pipe.

In the ship desulfurization apparatus according to the embodiment described in (25), the cleaning liquid flowing through the water spray pipe is sprayed from each of a plurality of spray nozzles arranged at a predetermined interval in the water spray pipe to uniformly disperse the cleaning liquid in the inner space . Therefore, the ship desulfurization apparatus can suppress the influence of the problem that the scattering of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship.

(26) A marine desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower including an absorption tower main body portion defining an internal space and formed with an exhaust gas introduction port communicating with the internal space, and an exhaust gas introduction portion connected to the exhaust gas introduction port,

And an exhaust gas cooling device which is introduced into the exhaust gas introduction portion and is capable of dispersing cooling water with respect to the exhaust gas before being introduced into the internal space,

The exhaust gas cooling device has a cooling water nozzle configured to eject the cooling water toward the upstream side in the flow direction of the exhaust gas.

The marine desulfurization apparatus according to the embodiment described in (26) is characterized in that the exhaust gas introduced into the exhaust gas introducing portion and scattering the cooling water by the exhaust gas cooling device with respect to the exhaust gas before being introduced into the internal space, The temperature of the exhaust gas can be lowered and the temperature rise in the exhaust gas introduction portion can be suppressed. Further, since the volume of the exhaust gas introduced into the exhaust gas introducing portion can be reduced by dispersing the cooling water by the exhaust gas cooling device, a large amount of exhaust gas can be processed in the absorption tower. Further, since the cooling water nozzle of the exhaust gas cooling device ejects the cooling water toward the upstream side in the flow direction of the exhaust gas, the temperature of the exhaust gas introduced into the exhaust gas introduction portion can be lowered before reaching the cooling water nozzle, It is possible to prevent the cooling water nozzle from being damaged by the heat of the cooling water.

(27) In some embodiments, in the ship desulfurization apparatus according to (26), the cooling water is seawater introduced into the inside of the ship.

In the ship desulfurization apparatus according to the embodiment described in (27) above, seawater introduced into the ship as cooling water is used, so that consumption of water such as industrial water required during navigation of the ship can be suppressed.

(28) In some embodiments, in the marine desulfurization apparatus described in (26) or (27), the exhaust gas introduction section is configured so that the exhaust gas flows downward in the vertical direction. The cooling water nozzle is configured to inject cooling water upward.

Sulfuric acid may be generated when the temperature of the exhaust gas is lowered by dispersing the cooling water by the exhaust gas cooling device with respect to the exhaust gas introduced into the exhaust gas introduction portion. Further, when seawater is used as the cooling water, salt may precipitate from the seawater due to the temperature rise. If sulfurous acid or salt is adhered to the cooling water nozzle, the scattering performance may be deteriorated.

The cooling water nozzle in the embodiment described in (28) is configured to inject cooling water upward in the direction opposite to the flow direction of the exhaust gas. The cooling water sprayed upward is brought into contact with the exhaust gas above the cooling water nozzle, drops the temperature of the exhaust gas, and then falls onto the cooling water nozzle or the like. The cleaning liquid dropped on the cooling water nozzle can wash out the sulfurous acid or the salt attached to the cooling water nozzle. Further, by keeping the cooling water nozzle in a wet state by the cleaning liquid dropped on the cooling water nozzle, deposition of sulfurous acid or salt on the cooling water nozzle can be suppressed, and the temperature rise of the cooling water nozzle can be suppressed.

(29) In some embodiments, in the marine desulfurization apparatus described in any one of (26) to (28), the exhaust gas cooling apparatus includes a cooling water nozzle for dispersing the cooling water, And a cooling water control valve formed in the cooling water conduit for controlling the amount of the cooling water dispersed from the cooling water nozzle.

The pressure of the cooling water on the primary side upstream of the cooling water control valve of the cooling water pipe fluctuates largely due to factors such as the number of operations of the pump. If the cooling water control valve is not formed, There is a possibility that the amount of cooling water dispersed from the cooling water nozzle greatly fluctuates, so that the cooling of the exhaust gas introduced into the exhaust gas introducing portion may become insufficient. On the contrary, in the exhaust gas cooling apparatus according to the above-mentioned (29), by controlling the amount of cooling water dispersed from the cooling water nozzle by the cooling water control valve, the exhaust gas introduced into the exhaust gas- have.

(30) In some embodiments, the ship desulfurizing apparatus described in (29) further includes a pressure gauge formed on the downstream side of the cooling water control valve of the cooling water duct, wherein the cooling water control valve And the opening degree is adjusted so that the pressure of the detected cooling water becomes constant.

Since the pressure of the cooling water at the downstream side from the cooling water control valve is made constant by the cooling water control valve so that the pressure of the cooling water at the time of ejection from the cooling water nozzle becomes constant, . In the exhaust gas cooling apparatus according to the embodiment (30), since the cooling water can always distribute a predetermined amount or more of cooling water from the cooling water nozzle, the exhaust gas guided in the exhaust gas introducing portion can be continuously cooled.

(31) In a ship desulfurization apparatus according to an embodiment of the present invention,

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,

An absorption tower including an absorption tower body portion defining an internal space;

A scattering device capable of scattering the cleaning liquid in the exhaust gas flowing in the internal space,

And a cleaning liquid supply device capable of supplying the cleaning liquid to the spray device,

The cleaning liquid supply device includes:

A cleaning liquid supply line for supplying the cleaning liquid to the dispersing device,

A bypass line that branches off from the cleaning liquid supply line and supplies the cleaning liquid to a storage space in which the cleaning liquid dispersed in the exhaust gas guided to the internal space is stored,

And a control valve formed in the bypass line, the control valve being capable of controlling the supply amount of the cleaning liquid flowing through the bypass line.

For example, since the required desulfurization performance differs between the discharge-regulated sea area and the general sea area, the required amount of the cleaning liquid supplied to the dispersing device is also different. If the amount of the cleaning liquid supplied to the dispersing device is smaller than the required amount, there is a possibility that the necessary desulfurizing effect may not be obtained. Further, when the amount of the cleaning liquid supplied to the dispersing device is larger than the required amount, the pressure loss of the exhaust gas may increase. A control valve is provided in a cleaning liquid supply line for supplying a cleaning liquid to the dispersing device and the supply amount of the cleaning liquid flowing through the cleaning liquid supply line is controlled by the control valve I can think of doing. However, since the piping constituting the cleaning liquid supply line has a large diameter, there is a possibility that the control valve formed in the cleaning liquid supply line becomes larger and larger. In addition, it is difficult to control the supply amount of the cleaning liquid in the cleaning liquid supply line having a large pipe diameter.

In the cleaning liquid supply device in the embodiment described in (31), the supply amount of the cleaning liquid flowing through the cleaning liquid supply line is controlled indirectly by controlling the supply amount of the cleaning liquid flowing through the bypass line by the control valve formed in the bypass line Can be controlled. In this case, since the pipeline constituting the bypass line can be made smaller in diameter than the line constituting the cleaning liquid supply line, the control valve formed in the bypass line is advantageous in that, in comparison with the control valve formed in the cleaning liquid supply line, Thereby achieving miniaturization and low liquidity. Further, the bypass line is easier to control the supply amount of the cleaning liquid than the cleaning liquid supply line.

(32) A ship according to an embodiment of the present invention is equipped with the ship desulfurization apparatus described in any one of (1), (17) to (31) above.

(33) A hexagonal integral type desulfurization apparatus according to one embodiment includes a casing forming a part of a hull structure of a ship, and a desulfurization unit supported by the casing, .

"Hull structure" means a structural body that forms the skeleton of the ship and the outer frame, excluding the design, the engine, and so on. The engine casing to be described later also corresponds to the " hull structure ".

Conventional marine desulfurization equipment is one of the machineries mounted on a ship, and is independent of the hull structure.

In the apparatus (33), the absorber is already supported on the casing forming part of the hull structure before being mounted on the ship. In this hull integral type desulfurization apparatus, the casing is connected to another hull structure of the ship on the ship.

According to the structure (33), since the casing supporting the absorption tower forms a part of the hull structure, it is unnecessary to provide extra clearance around the absorption tower and a reinforcing member for vibration and vibration stop of the absorption tower do. Therefore, the mounting structure of the absorption tower can be made compact, and the weight of the hull structure can be reduced.

(34) In one embodiment, in the configuration of (33)

The absorption tower is welded to the casing surrounding the outer periphery of the absorption tower, and is formed integrally with the casing.

According to the structure of (34), since the absorption tower is connected to the casing surrounding the outer periphery of the absorption tower by welding, the force applied to the casing from the absorption tower is dispersed around the casing. As a result, since the load of the absorption tower, which is originally concentrated at the base of the absorption tower, is dispersed in the casing, the support structure of the absorption tower can be made compact.

(35) In one embodiment, in the configuration of (33) or (34)

A gap is formed between the vessel and the engine casing located below the absorption tower in a state where the vessel integrated type desulfurization apparatus is mounted on the vessel and the absorption tower is supported from the periphery by the casing.

According to the structure (35), since the absorber is supported by the casing from the periphery and the support portion for supporting the absorber from below is unnecessary, a gap can be formed between the absorber and the engine casing located below . Therefore, piping such as an exhaust pipe for introducing exhaust gas discharged from an exhaust gas generator of a liquid pipe (seawater supply pipe, seawater discharge pipe), main engine or the like through which the absorption liquid flows can be arranged in the gap .

(36) In one embodiment, in any one of the constitutions (33) to (35), the casing has a length along the width direction of the ship larger than a length along the forward and backward direction of the ship.

According to the configuration of (36), since the longitudinal direction of the casing is arranged along the width direction of the ship, the absorption tower supported by the casing is arranged along the width direction of the ship, The bending stress acting on the absorption tower at the time of horizontal shaking (rolling) of the ship can be made smaller than that of the absorption tower having the longitudinal direction along the fore-aft direction of the ship. Therefore, an absorption tower having high resistance to rolling can be obtained.

(37) In one embodiment, in any one of the constitutions (33) to (36), in the state in which the above-mentioned integral integral type desulfurization apparatus is mounted on the ship, It is located above the piping.

According to the structure (37), since the absorption tower is located above the exhaust gas pipe of the exhaust gas generator, the length of the exhaust gas pipe for introducing the exhaust gas discharged from the exhaust gas generator into the absorption tower is shortened .

Here, the " upper position of the exhaust gas pipe " means that " a position where at least a part of the exhaust gas pipe and the absorption tower overlap in plan view ".

(38) In one embodiment, in any one of the constitutions (33) to (37), the exhaust gas purifier is supported by the casing, and the exhaust gas pipe of the exhaust gas generator is connected to the exhaust gas inlet of the absorption tower A gas pipe, or a liquid pipe through which the absorption liquid used in the absorption tower flows.

According to the structure (38), the supporting structure of the absorption tower including these pipes can be made compact by supporting the piping flow with the casing forming part of the hull structure of the ship.

(39) A ship according to an embodiment includes a planetary integral type desulfurization apparatus having any one of the constitutions (33) to (38), and a part of the hull structure is formed by the planetary integral type desulfurization apparatus.

According to the structure (39), since the hull integral type desulfurization apparatus is formed as a part of the hull structure, extra reinforcements for the purpose of dust prevention and vibration stop of the absorber and extra clearance around the absorber are unnecessary . Therefore, the mounting structure of the absorption tower can be made compact.

(40) In one embodiment, in the structure of (39), the hull structure includes an engine casing located below the casing of the integrated unit type desulfurization device, And is connected to the engine casing by welding.

According to the structure of (40), since the absorption tower is supported by the casing forming part of the hull structure of the ship, the casing can be easily disposed above the engine casing having the same hull structure. In addition, since the distance between the casing and the engine casing in which the absorption tower is supported is short, the length of the exhaust gas pipe for introducing the exhaust gas discharged from the main engine accommodated in the engine casing into the absorption tower can be shortened.

(41) In one embodiment, in the constitution of (40), the inner wall of the outer wall of the casing is provided with a rib formed in the vertical direction or a stiffener interposed between the outer wall The positions of the first reinforcing member and the second reinforcing member formed by the ribs or the stiffeners formed in the engine casing coincide with each other.

According to the structure (41), since the positions of the first reinforcing member and the second reinforcing member are the same, the support strength of the engine casing for supporting the casing supporting the absorption tower can be increased, And is stably supported by the engine casing.

(42) In one embodiment of the present invention, in any one of the structures (39) to (41), the hull structure of the ship is provided with the casing and the casing, adjacent to the casing in the width direction of the ship, Other hinged structures to be welded.

According to the structure (42), since the hull structure arranged in the width direction of the ship is divided into the hull structure different from the casing supporting the absorption tower, the weight of the hull structure integral type desulfurization apparatus becomes excessive, Can be avoided.

(43) A method for installing a vessel-mounted integral type desulfurization apparatus according to an embodiment of the present invention comprises a casing forming a part of a hull structure of a ship, and a casing supported by the casing, Comprising: a forming step of forming a unitary integrated desulfurization apparatus having an absorption tower for desulfurizing exhaust gas to be discharged; and a mounting step of mounting said integrated integral desulfurization apparatus to said ship, wherein in said mounting step, The casing of the device is joined to the hull structure other than the casing of the ship.

According to the method (43), in the forming step, a whitetail integrated desulfurizing device is formed beforehand on land or the like, and the vessel incorporates the integral whitethermal-type desulfurizing device after the vessel is settled. Thereby, the construction period for mounting the absorber on the ship can be shortened. Further, the absorber and the hull structure can be manufactured in parallel at the same time before they are integrated, thereby shortening the construction period of the integral unit type desulfurization apparatus.

(44) In one embodiment, in the constitution of (43), in the forming step, the absorption tower and the casing are assembled together from the lower section to the upper section in this order.

According to the method (44), the assembling is facilitated by assembling from the lower section to the upper section in the order of the hull-type integrated desulfurizer, and the construction period can be shortened by assembling the absorption tower and the casing in parallel at the same time.

(45) In one embodiment, in the above-mentioned method (43), in the forming step, the above-mentioned integrated integral type desulfurization apparatus forms an aggregate of a plurality of divided sections divided in the vertical direction, The above-mentioned divided integral sections are stacked in this order to mount the above-mentioned integral integral type desulfurizing device on the above described vessel.

According to the above method (45), by forming the aggregate of the plurality of divided sections in which the horizontal integrated type desulfurization apparatus is divided in the vertical direction, the crane can be transported on the ship by the divided sections in the mounting step. Therefore, it is possible to avoid a situation in which the conveying ability of the crane is insufficient.

According to at least one embodiment of the present invention, it is possible to provide a marine desulfurization apparatus having an excellent arrangement property when it is placed on a ship such as a super large ship.

1 is a perspective view showing a ship according to an embodiment of the present invention.
Fig. 2 (a) is a view showing dimensions of a 40-foot container, and Fig. 2 (b) is an enlarged view of the periphery of a steel plate structure in the ship shown in Fig.
3 is a perspective view showing a ship desulfurization apparatus according to an embodiment of the present invention.
Fig. 4 is a perspective view showing a ship desulfurization apparatus according to an embodiment of the present invention from an angle different from that of Fig. 3; Fig.
5 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention.
Fig. 6 is a view showing a result of examination of the planar shape of the internal space of the absorption tower body in the ship desulfurization apparatus according to the embodiment of the present invention. Fig.
7 is a view for explaining a transverse member formed in a storage space of an absorption tower in a marine desulfurization apparatus according to an embodiment of the present invention.
8 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention.
9 is a graph showing the relationship between the shape (aspect ratio) of the internal space of the absorption tower body portion and the desulfurization performance parameter in the ship desulfurization apparatus according to the embodiment of the present invention.
10 is a table showing the results of examining the relationship between the shape (aspect ratio) of the inner space of the absorption tower body portion and the desulfurization performance parameter in the ship desulfurization apparatus according to the embodiment of the present invention.
11 is a plan view for explaining the arrangement condition of the sprinkling nozzle in the inner space of the absorption tower body portion.
12 is a view for explaining the relationship between the planar shape and the shape (aspect ratio L / W) of the inner space of the absorption tower body portion in the ship desulfurization apparatus according to the embodiment of the present invention.
Fig. 13 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, which is viewed from the direction A shown in Fig. 5. Fig.
Fig. 14 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, showing an example of an absorption tower (a liquid column tower, a spray tower, a tray type absorption tower, etc.) .
Fig. 15 is a perspective view (conceptual view) for explaining a filling material according to an embodiment of the present invention. Fig.
Fig. 16 is a schematic view for explaining a method layer in an embodiment of the present invention, and is a schematic view showing an absorption tower of a marine desulfurization apparatus. Fig.
17 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, and is a view for explaining a wall reinforcing member and a partition wall.
18 is a view for explaining an exhaust gas cooling apparatus of a marine desulfurization apparatus according to an embodiment of the present invention.
19 is a view for explaining an exhaust gas cooling apparatus of a marine desulfurization apparatus according to an embodiment of the present invention.
20 is a view for explaining a cleaning liquid supply line and a bypass line in a marine desulfurization apparatus according to an embodiment of the present invention.
21 is a view for explaining the fixing of the absorption tower and the steel plate structure of the marine desulfurization apparatus according to the embodiment of the present invention.
22 is a view for explaining installation of an absorption tower and a steel plate structure of a ship desulfurization apparatus on a ship in accordance with an embodiment of the present invention.
23 is a view for explaining connection between an absorption tower and an exhaust gas introduction pipe of a marine desulfurization apparatus according to an embodiment of the present invention.
24 is a view for explaining connection between an absorption tower and an exhaust gas introduction pipe of a marine desulfurization apparatus according to an embodiment of the present invention, wherein (a) is a schematic top view and (b) is a schematic front view.
Fig. 25 is a perspective view showing a case in which a hexagonal integral type desulfurization apparatus according to an embodiment is assembled to a hull structure. Fig.
26 is a perspective view showing a case of assembling a unitary integrated desulfurizer of the embodiment to a hull structure.
Fig. 27 is a plan view of a casing including a hull integral type desulfurization apparatus according to an embodiment. Fig.
28 is a schematic view showing a case in which a hull integral type desulfurization apparatus according to one embodiment is assembled to a hull structure.
Fig. 29 is a schematic view showing a case in which a hexagonal integral type desulfurization apparatus according to an embodiment is assembled to a hull structure. Fig.
Fig. 30 is a schematic view showing a case where a hull integral type desulfurization apparatus according to an embodiment is assembled to a hull structure. Fig.
31 (A), 31 (B) and 31 (C) are schematic views showing several hull integrated type desulfurization apparatuses.
32 is a process diagram showing a method of installing a unitary type desulfurization apparatus according to one embodiment.
33 is a schematic view showing an installation method for a hull structure of a whitetronic integrated desulfurizer according to an embodiment.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements and the like of the constituent parts described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention but are merely illustrative examples.

For example, expressions representing relative or absolute arrangements such as "in any direction," "along any direction," "parallel," "orthogonal," "center," "concentric," or "coaxial" Not only the arrangement but also a state in which a tolerance or a relative displacement with an angle or distance sufficient to obtain the same function is shown.

For example, expressions indicating that objects such as " identical ", " equivalent ", and " homogeneous " are equivalent represent not only strictly equivalent states but also tolerances or differences in degree State.

For example, the expression indicating a shape such as a rectangular shape or a cylindrical shape is not limited to a shape such as a rectangular shape or a cylindrical shape in a geometrically strict sense, but also a shape including a concavo-convex portion or a chamfered portion .

On the other hand, the expression "to prepare", "to have", "to have", "includes", or "has" is not an exclusive expression excluding the existence of another element.

In the following description, the same components are denoted by the same reference numerals, and detailed description thereof may be omitted.

1 is a perspective view showing a ship according to an embodiment of the present invention. The ship 1 according to the embodiment of the present invention is, for example, a super large-sized ship in which the amount of exhaust gas (amount of exhaust gas at 100% load) of the main engine exceeds 200,000 Nm3 / h. In the illustrated embodiment, the vessel 1 is an ultra-large container ship having a container loading capacity of 10,000 TEU or more called an Ultra Large Container Ship (ULCS).

As shown in Fig. 1, the ship 1 has a ship housing 2, a housing 4 formed to protrude from the upper deck 3 at a position slightly forward from the center in the fore-aft direction, And a steel plate structure 6 protruding from the upper deck 3 at a stern side of the dwell 4. Here, the steel plate structure 6 is called a chimney or an engine casing. A plurality of transverse bulkheads 8 extending in the starboard-port direction, which is a direction orthogonal to the forward-aft direction, are formed in the pod of the ship body 2 at intervals. Thereby, the ship body 2 is divided into a plurality of areas, each of which has a length capable of accommodating the 40-foot container 9 along the longitudinal direction of the container in the forward-aft direction as a basic unit.

Fig. 2 (a) shows the dimensions of the 40-foot container 9. Fig. Fig. 2 (b) is an enlarged view of the periphery of the steel plate structure of the ship shown in Fig. 1. Fig. As shown in Fig. 2 (b), the steel plate structure 6 is formed between a pair of adjacent transverse bulkheads 8A and 8B. An engine room 10 is formed in the inside of the ship body 2 which contacts the vertical lower side of the steel plate structure 6. [ The engine room 10 is provided with a main engine 12 composed of a marine diesel engine for imparting propulsion to the ship 1 or a cycle boiler for driving a periodical turbine, A plurality of auxiliary organs 14 composed of an auxiliary boiler for meeting an electric power demand or the like, or the like is provided. The main engine 12 and the auxiliary engine 14 correspond to the exhaust gas generator mounted on the ship 1 according to the embodiment of the present invention.

The steel plate structure 6 is a structure for discharging the exhaust gas discharged from the main engine 12 or the auxiliary engine 14 or the like to the outside of the ship 1, (Longitudinal direction) along the longitudinal direction (width direction). A vessel desulfurization apparatus 20 for desulfurizing the exhaust gas discharged from the main engine 12 and the auxiliary engine 14 mounted on the ship 1 is disposed inside the steel plate structure 6. In some embodiments, the width of the inside of the steel plate structure 6 (the length in the direction perpendicular to the longitudinal direction) is generally in the range of 3 m to 8 m. On the other hand, the length in the longitudinal direction of the steel plate structure 6 is relatively limited, and may be set in the range of 5 m to 20 m, for example.

3 is a perspective view showing a ship desulfurization apparatus according to an embodiment of the present invention. 4 is a perspective view showing a ship desulfurization apparatus according to one embodiment of the present invention, viewed from an angle different from that of Fig.

3 and 4, a ship desulfurization apparatus 20 according to an embodiment of the present invention includes an absorption tower 30 including an absorption tower main body portion 32, And an exhaust gas introducing device (40) for introducing the exhaust gas discharged from the engine (14) to the absorption tower body portion (32).

5 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention. 5, the absorption tower 30 includes an absorption tower body 32, an exhaust gas inlet 34, and an exhaust gas outlet 36. As shown in Fig. The absorption tower body portion 32 defines an internal space 31 having a longitudinal direction therein. An exhaust gas inlet 33 communicating with the internal space 31 (the lower internal space 31b) is formed in the side end portion 39a on one side in the longitudinal direction of the absorption tower body portion 32 Respectively. The exhaust gas introduced into the internal space 31 from the exhaust gas inlet 33 flows from the side end portion 39a on one side to the side end portion 39b on the other side of the lower side internal space 31b, Flows along the inner space 31 while rising.

In the illustrated embodiment, a filling layer 35 is provided in the inner space 31 at a position above the lower side inner space 31b to separate the lower side inner space 31b and the upper side inner space 31c from each other Respectively. In the filling layer 35, for example, a plurality of regular filling materials are laminated in several layers. A dispersing device 38 for dispersing a cleaning liquid (for example, seawater or fresh water) is disposed in the inner space 31 at a position above the packed bed 35. Then, the cleaning liquid is sprayed on the exhaust gas passing through the packed bed 35, and the exhaust gas and the cleaning liquid are brought into vapor-liquid contact to remove the sulfur contained in the exhaust gas.

A mist eliminator 37 is disposed in the inner space 31 at a position above the upper inner space 31c so as to separate the upper inner space 31c and the outlet inner space 31d have. The mist eliminator (37) is configured to remove moisture from the exhaust gas passing through the mist eliminator (37). The exhaust gas that has passed through the mist eliminator 37 is discharged from the exhaust gas leading portion 36 connected to the uppermost portion of the absorption tower body portion 32 through the outlet side internal space 31d to the ship 1 As shown in FIG.

The absorption tower main body portion 32 is formed with a storage space 31a in which the cleaning liquid that has been scattered and scattered with respect to the exhaust gas induced in the internal space 31 is stored. In the illustrated embodiment, the storage space 31a is formed below the lower internal space 31b and below the lower surface of the exhaust gas inlet 33.

3 and 4, the ship desulfurization apparatus 20 further comprises a seawater supply device 50 for supplying seawater to the above-described spray device 38. [ The seawater supply device 50 includes a drainage dilution pump 52a, a seawater supply pump 54a, a drain pipe 56, a seawater supply pipe 58, and a seawater discharge pipe 59. The seawater introduced into the ship body 2 by the seawater supply pump 54a is configured to be supplied to the spray device 38 via the seawater supply pipe 58. [ The scrubber drainage discharged from the absorption tower 30 is diluted by the drainage dilution pump 52a and drained to the outside of the ship 1 through the drainage pipe 56. [ In the illustrated embodiment, each of the plurality of drain dilution pumps 52a is connected to a common first seawater suction box 52. [ Similarly, each of the plurality of seawater supply pumps 54a is connected to a common second seawater suction box 54. [

As described above, the inner space 31 of the absorption tower body 32 is formed in a planar shape having a longitudinal direction along the introduction direction of the exhaust gas. The planar shape of the inner space 31 of the absorption tower body 32 will be described in detail with reference to Fig. 6, reference character L designates the length (length in the longitudinal direction) of the internal space 31, and reference symbol W designates the width of the internal space 31 (length in the direction perpendicular to the longitudinal direction). Symbol D is a converted diameter of a circular cross section having a cross-sectional area equal to that of a rectangular cross-section having a cross-sectional area of length (L) and width (W).

In the embodiment shown in Fig. 6, the planar shape of the inner space 31 of the absorption tower body portion 32 is formed by a pair of long side walls extending parallel to each other, and a pair of short However, the planar shape of the inner space 31 is not limited to a rectangular shape. As long as the effects of the present invention are exhibited, the planar shape of the inner space 31 may be a rectangular shape, an elliptical shape, And may be formed in a rectangular shape or the like.

Fig. 6 is a view showing the result of examining the planar shape of the inner space of the absorption tower body in the ship desulfurization apparatus according to the embodiment of the present invention. Fig. 6 (a) to 6 (c), "planarity" indicating ease of layout when arranging the absorption tower 30 with respect to the ship 1 and " And "desulfurization" which means uniformity of the exhaust gas flow in the internal space 31 of the column 30.

In the evaluation of the "placement property", based on the following evaluation criteria, the placement properties were evaluated in four stages of ⊚, ◯, △, and × in order from the highest. This is because when the maximum width W in the width direction is smaller than the converted diameter D and the absorption tower 30 is arranged in a site having a slender shape such as the inside of the steel plate structure 6 Is superior in the layout property.

(Evaluation standard)

◎ ... (W / D) < 0.50

○ ... 0.50? (W / D) < 0.75

△ ... 0.75? (W / D) < 0.90

× ... 0.90? (W / D)

9 is a graph showing the relationship between the shape (aspect ratio L / W) of the space inside the absorption tower and the desulfurization performance parameter in the ship desulfurization apparatus according to the embodiment of the present invention. Also, in order to emphasize the change of the data, they are expressed in both logarithms. 10 is a table showing the results of examining the relationship between the shape (aspect ratio) of the inner space of the absorption tower body portion and the desulfurization performance parameter in the ship desulfurization apparatus according to the embodiment of the present invention. 11 is a plan view for explaining the arrangement condition of the spray nozzle in the internal space of the absorption tower body portion.

The relationship between the shape of the inner space 31 of the absorption tower body 32 and the desulfurization property was examined using desulfurization performance parameters defined below.

Desulfurization performance parameter = circumferential length ratio? X number of interference nozzles ratio?

α: relative ratio to the reference condition (L / W = 1) with respect to the circumferential length

  = Circumferential length in the reference condition / circumferential length in the aspect ratio of the object to be examined

β: the ratio of the number of interference nozzles to the reference condition

  = Number of interference nozzles in the aspect ratio under consideration / number of interference nozzles in the reference condition

The circumferential length refers to the circumferential length of the absorption tower body 32 in the horizontal section. If the cleaning liquid adheres to the wall surface, it becomes a loss that does not contribute to desulfurization. Therefore, if the circumferential length is long in the case of the same cross-sectional area, it becomes an inhibiting factor deteriorating the desulfurization performance. As described above, the circumferential length ratio? Is defined by the inverse ratio with the reference condition (L / W = 1).

The interference nozzle refers to a water spray nozzle having water spray nozzles adjacent to four sides. That is, as shown in Fig. 11, a plurality of rows of water spray nozzles 71 are arranged in the longitudinal direction and the width direction, respectively, in the internal space 31 of the absorption tower body portion 32, In the case where the nozzle 71 is disposed, the spray nozzle 71b positioned inside the range 71A except for the spray nozzle 71a disposed on the outermost periphery is the interference nozzle described above.

When the number of interference nozzles is increased in the case of the same cross sectional area, the number of places where the desulfurizing liquid sprayed between adjacent water spraying nozzles interfere (overlap each other) is increased, which is an acceleration factor for improving the desulfurization performance. Because of this facilitating factor, the interference nozzle number ratio? Is defined by the ratio with the reference condition (L / W = 1). The number of nozzles was assumed to be arranged in a lattice pattern using a predetermined nozzle pitch (0.5 m in the present embodiment), and converted into an integer when the number of nozzles came out.

9, as the aspect ratio L / W is larger than 1, the circumferential length is increased and the number of interference nozzles is decreased under the condition of the same cross sectional area, so that the desulfurization performance parameter decreases. 9, the desulfurization performance parameter is substantially constant when the L / W is 2.0 or less, and is decreased in the range of 2.0 to 6.0, and significantly lowered when the L / W is 6.0 or more. Therefore, it was judged that the inflection point was located at two points of L / W = 2.0 and 6.0.

In the evaluation of the "desulfurization ability", the evaluation was made in four stages of ⊚, ◯, △, and x, respectively, in descending order of the degree of desulfurization based on the following evaluation criteria. This is based on the idea that the higher the uniformity of the exhaust gas flow in the absorption tower 30, the better the desulfurization performance. The uniformity of the exhaust gas flow in the absorption tower 30 was evaluated from the above-described examination results based on the following examination conditions. 9, when the aspect ratio is 2 or less, the desulfurization performance parameter can be maintained at a substantially constant high level, and the uniformity of the exhaust gas flow in the absorption tower 30 can be maintained in a desirable state. When the aspect ratio is more than 2 and not more than 3, the desulfurization performance parameter is gradually decreased as the aspect ratio is increased, but the desulfurization performance parameter can be maintained at a high level. In addition, even when the aspect ratio is more than 3 and not more than 6, the desulfurization performance parameter is gradually decreased as the aspect ratio is increased, but the desulfurization performance parameter can still be maintained at a relatively high level. On the other hand, as shown in Fig. 9, when the aspect ratio exceeds 6, the desulfurization performance parameter sharply decreases, and the uniformity of the exhaust gas flow in the absorption tower 30 exerts the required desulfurization performance It is considered that the allowable range in the case of the above-mentioned case is exceeded. Therefore, the upper limit of the aspect ratio was set to 6.

 (Evaluation standard)

◎ ... W: L = 1: more than 1.1, and 1: 2.0 or less

○ ... W: L = 1: more than 2.0, and 1: 3.0 or less

△ ... W: L = 1: more than 3.0, and 1: 6.0 or less

× ... W: L = 1: exceeding 6.0

(Review condition)

Inlet gas flow rate = 2 to 20 m / s

Flow rate in the absorption tower = 1 to 5 m / s

Quantity to live = 30 ~ 200 ㎥ / ㎡ · h

Then, the "comprehensive evaluation" was carried out on the basis of the evaluation results of the above two items of "batch property" and "desulfurization property". Based on the following evaluation criteria, the "comprehensive evaluation" was evaluated in three stages of "excellent", "good", and "possible" in order from the highest evaluation.

Great… &Amp; cir & is one or more items, and & cir & and &

Good… ○ is two items

possible… △ is one item or more, and there is no ×

Not available ... × is more than 1 item

6 (a) to 6 (c), the planar shape of the internal space 31 has a W: L ratio of more than 1: 1.5 and a ratio of 1: 2.0 or less Respectively. Although the evaluation of the "batch property" and the "desulfurization property" has a trade-off relationship with each other, by setting the W: L in this range, the ship desulfurization apparatus 20 having good balance, Can be provided.

Then, it was evaluated that "W: L = 1: more than 2.0 and 1: 3.0 or less were" good "in the comprehensive evaluation. Subsequently, it was evaluated that "W: L = 1: more than 3.0 and 1: 6.0 or less were" possible "in the comprehensive evaluation. In addition, W: L = 1: 1.1 or less is evaluated as "not possible" because "desulfurization property" is excellent but "placement property" is inferior. As described above, when W: L is more than 1: 6.0, the uniformity of the exhaust gas flow in the absorption tower 30 can not be ensured and the "desulfurization property" is inferior. "

Above, the marine desulfurization apparatus 20 according to the embodiment of the present invention described above defines the internal space 31 having the longitudinal direction, and defines the internal space 31 at one side end 39a in the longitudinal direction And an absorption tower body 30 including an absorption tower body 32 in which an exhaust gas inlet 33 communicating with the internal space 31 (the lower internal space 31b) is formed. That is, the internal space 31 of the absorption tower body 32 is configured to have a longitudinal direction along the exhaust gas introduction direction. Therefore, dead space is not generated much better than in the case of the conventional annular absorption tower, and therefore, the arrangement of the vessel 1 in the vessel 1 is excellent. In addition, the absorption tower 30 having a planar shape having a longitudinal direction along the exhaust gas introduction direction is provided with a ship-like desulfurization apparatus 20 having an excellent arrangement property with respect to the ship 1 such as the above- . The risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine dust can be reduced as compared with the case where the inner space of the absorption tower body portion has the longitudinal direction along the direction orthogonal to the exhaust gas introduction direction.

(W: L) of the maximum width (W) to the maximum length (L) of the internal space (31) is 1: 1.1 , And 1: 6.0 or less. By setting the upper limit of the ratio W: L of the maximum width W and the maximum length L of the internal space 31 to 1: 6.0, the exhaust gas flow in the absorption tower 30 Can be made within the practical allowable range as examined by the inventors of the present invention.

(W: L) of the maximum width (W) to the maximum length (L) of the inner space (31) of the ship desulfurization apparatus (20) Is more than 1: 1.5 and not more than 1: 2.0.

According to this embodiment, as described above, it is possible to provide a marine desulfurization apparatus 20 with excellent balance and excellent desalting properties and good balance.

1 to 4 and the like, the absorption tower 30 has a structure in which the longitudinal direction of the internal space 31 of the absorption tower body portion 32 extends in the width direction of the ship 1 The ship 1 is mounted on the ship 1 so as to follow it.

According to this embodiment, the absorption tower 30 having the longitudinal direction along the width direction of the ship 1 can be installed in the marine vessel 1 such as the above-described super large container ship, (20).

According to this embodiment, since the absorber main body portion 32 can be configured to have a longitudinal direction along the width direction of the ship 1, the longitudinal direction along the forward-aft direction of the ship 1 It is possible to reduce the bending stress acting on the absorption tower when the ship 1 is horizontally shaken (rolled), so that the absorption tower 30 having high resistance to rolling can be obtained.

In some embodiments, as described above with reference to Figs. 1 to 4 and the like, the above-described vessel 1 is configured such that the exhaust gas discharged from the exhaust gas generator (main engine 12, auxiliary engine 14) Is a steel plate structure (6) for discharging the steel plate structure (6) to the outside of the ship (1), and has a steel plate structure (6) formed in a long and long direction and having a longitudinal direction along the width direction of the ship (1). The absorption tower 30 is disposed inside the steel plate structure 6.

In the illustrated embodiment, the steel plate structure 6 has a planar shape in a rectangular shape. In some embodiments, the planar shape of the steel plate structure 6 may be formed into a rectangular shape having an elongated shape, an elliptical shape, a rectangular shape, or the like.

According to this embodiment, the absorption tower 30 is disposed inside the long ordinary steel plate structure 6 having the longitudinal direction along the width direction of the ship 1, It is possible to minimize the influence on the layout plan of facilities and the like. Therefore, the retrofit for the existing vessel 1 is facilitated. By arranging the absorption tower 30 on the inner side of the steel plate structure 6, as compared with the case where the absorption tower 30 is disposed inside the ship 1, for example, in the engine room 10, Workability and maintenance are also excellent.

In some embodiments, as shown in Fig. 3 and Fig. 4, inside the above-described steel plate structure 6, there is provided a heat exchanger for recovering heat energy from the exhaust gas discharged from the exhaust gas generator (main engine 12) Is arranged on the upper surface of the housing. The absorption towers 30 are arranged side by side along the width direction of the array collecting device 60 and the ship 1.

In the illustrated embodiment, the exhaust heat recovery apparatus 60 is made up of an exhaust gas economizer that generates steam by the heat energy recovered from the exhaust gas. An exhaust gas inflow pipe 45 through which exhaust gas discharged from the main engine 12 flows is connected to the lower portion of the apparatus 60 and an exhaust gas discharge pipe 43 is connected to the upper portion of the exhaust gas inflow pipe 45. The exhaust gas introducing pipe 42 is branched from the exhaust gas exhaust pipe 43 to introduce exhaust gas into the absorber 30. The exhaust gas inflow pipe 45, the exhaust gas discharge pipe 43 and the exhaust gas introduction pipe 42 are arranged in such a manner that the exhaust gas discharged from the main engine 12 or the auxiliary engine 14, And constitutes a part of the exhaust gas introducing device 40 for guiding the exhaust gas to the main body 32.

In the illustrated embodiment, the array collection apparatus 60 is configured so as to have a longitudinal direction along the width direction of the ship 1, like the absorption tower main body portion 32. Further, the inner space is formed in a rectangular shape in a horizontal section.

According to this embodiment, the absorption tower 30 and the array recovery device 60 are arranged side by side along the width direction of the ship 1 inside the steel plate structure 6, The exhaust gas introducing device 40 can be configured in a simple manner as compared with the case where the exhaust gas introducing device 30 is disposed at a distance from each other. In addition, since the array recovery apparatus 60 is formed in a rectangular shape having a longitudinal direction along the width direction of the ship 1, the inside of the steel plate structure 6 having the longitudinal direction along the width direction of the ship 1 The dead space is not generated well and it can be arranged efficiently.

3 to 5, the absorption tower 30 is configured such that one end portion 34a is connected to the exhaust gas inlet port 33 of the absorption tower body portion 32, And an exhaust gas introducing portion 34 extending upward from the one end portion 34a toward the other end portion 34b.

In the illustrated embodiment, the exhaust gas introducing portion 34 has a rectangular cross-section, and the exhaust gas inlet 33 is also formed in a rectangular shape. The exhaust gas introducing portion 34 includes an inclined portion 34A extending obliquely upward from the exhaust gas inlet 33 of the absorption tower body portion 32 and an inclined portion 34A extending vertically from the end portion of the inclined portion 34A And a vertical portion 34B extending upward. An exhaust gas introducing pipe 42 to be described later is connected to an end of the vertical portion 34B (the other end 34b of the exhaust gas introducing portion 34).

According to this embodiment, the exhaust gas introducing line (exhaust gas introducing pipe 42) is connected to the other end portion 34b of the exhaust gas introducing portion 34 so as to be disposed in a narrow space inside the steel plate structure 6 So that the exhaust gas can be introduced into the absorption tower 30.

3 to 5 described above, the exhaust gas introducing apparatus 40 described above is arranged in such a manner that the other end 34b of the exhaust gas introducing unit 34 An exhaust gas introduction pipe 42 extending along the width direction of the ship 1 toward the exhaust gas introduction pipe 42 and exhaust gas discharged from the auxiliary organs 14, And an auxiliary gas exhaust gas introducing pipe 44a to 44d for introducing the gas to the absorption tower main body 32 through the introduction pipe 42. [

In the illustrated embodiment, one end of the exhaust gas introduction pipe 42 is connected to the exhaust gas discharge pipe 43 described above, and the other end thereof is connected to the other end 34b of the above described exhaust gas introduction part 34 . The exhaust gas introducing pipe 42 extends along the horizontal direction on the inner side of the steel plate structure 6.

In the illustrated embodiment, an exhaust gas chimney section 46 extending upward from the inside of the steel plate structure 6 via the exhaust gas damper 47, And a gas introduction pipe 42 is connected. When the exhaust gas generating device such as the main engine 12 or the auxiliary engine 14 is stopped, the exhaust gas chimney portion 46 is exhausted from the exhaust gas exhaust pipe 43 by the exhaust gas damper 47, The flow path from the exhaust gas discharge pipe 43 to the exhaust gas introduction pipe 42 is abolished. When the exhaust gas generating device such as the main engine 12 or the auxiliary engine 14 is operated, for example, the exhaust gas damper 47 supplies the exhaust gas from the exhaust gas discharge pipe 43 to the exhaust gas introduction pipe 42 And the flow path from the exhaust gas discharge pipe 43 to the exhaust gas chimney section 46 is abolished.

In the illustrated embodiment, a plurality of exhaust gas introduction pipes 44a to 44d for auxiliary devices through which the exhaust gas discharged from the auxiliary organs 14 flows are connected to the exhaust gas introduction pipe. Each of the plurality of exhaust gas introduction pipes 44a to 44d for ancillary equipment is connected to exhaust gas discharge pipes 48a to 48d for a plurality of auxiliary devices through an exhaust gas damper for an assistant device (not shown). For example, when the auxiliary engine 14 is stopped, a plurality of exhaust gas discharge pipes 48a to 48d for auxiliary devices are provided from exhaust gas introducing pipes 44a to 44d for a plurality of auxiliary devices by an exhaust gas damper (not shown) 48d are opened while the flow path from each of the plurality of exhaust gas introduction pipes 44a to 44d for auxiliary devices to the exhaust gas introduction pipe 42 is abolished. When the auxiliary engine 14 is operated, for example, an exhaust gas damper (not shown) is connected to the exhaust gas introduction pipe 42 from each of the plurality of auxiliary gas exhaust gas introduction pipes 44a to 44d The flow path through each of the exhaust gas discharge pipes 48a to 48d for a plurality of auxiliary devices from each of the plurality of exhaust gas introduction pipes for aids 44a to 44d is abolished while the flow path is opened.

According to this embodiment, the exhaust gas discharged from the main engine 12 and the auxiliary engine 14 can be introduced into the absorption tower 30 disposed in a narrow space inside the steel plate structure 6 .

11, the absorber main body portion 32 includes a pair of long side wall surfaces 32a and 32b (not shown) extending parallel to each other along the longitudinal direction of the inner space 31. In other words, And a pair of short side walls 32c and 32d extending parallel to each other along the width direction of the inner space 31. [

According to this embodiment, the planar shape of the inner space 31 of the absorption tower body portion 32 is formed by a pair of long side wall surfaces 32a and 32b and a pair of short side wall surfaces 32c and 32d As shown in Fig. At this time, it is also included in the rectangular shape in the present embodiment that the R-shaped portion is provided on the corner portion of the rectangular shape, or the R-shaped portion is processed. The absorption tower main body portion 32 having such a rectangular internal space 31 has a good dead space in the ship when placed inside the ship, and therefore is excellent in the arrangement efficiency in the ship.

7 is a view for explaining a transverse member formed in a storage space of an absorption tower in a marine desulfurization apparatus according to an embodiment of the present invention.

5, the absorption tower main body portion 32 is provided with a storage space 31a (see FIG. 5) in which the cleaning liquid that has been scattered with respect to the exhaust gas introduced into the internal space 31 is stored, Is formed. 7, the absorber main body portion 32 connects the pair of long side wall surfaces 32a and 32b (see Fig. 11) and connects the storage space 31a to the inner space (Fig. 31 extending in the transverse direction along the width direction.

According to such an embodiment, when sloshing occurs in which the surface of the cleaning liquid stored in the storage space 31a is largely undulated due to horizontal shaking of the ship 1, The fluctuation of the liquid level can be suppressed. It is also possible to improve the strength of the absorption tower body portion 32 having the rectangular internal space 31 by forming the transverse member 70 connecting the pair of long side wall surfaces 32a and 32b .

In some embodiments, as shown in Fig. 7 (a), the transverse member 70 described above is formed of a girder member 70A having a long shape.

In the illustrated embodiment, the girder member 70A is made of, for example, an H-shaped steel having an H-shaped cross section, and at the substantially central position in the longitudinal direction of the inner space 31, It is installed in plural stages (three stages). Further, in some embodiments, the girder member 70A may be a girder member having an I-shape, an L-shape, a T-shape, and a normal cross-section.

According to this embodiment, the sloshing suppressing effect and the reinforcing effect of the absorbing column body 32 can be realized by the longitudinally shaped girder member 70A. In addition, according to this embodiment, the reinforcing effect on the absorption tower body portion 32 is particularly excellent.

In some embodiments, as shown in Fig. 7 (b), the transverse member 70 described above is composed of a plate member 70B having a flat plate shape.

In the illustrated embodiment, the lid member 70B is made of a non-porous plate having no hole formed in its plate surface, and is provided at a substantially central position in the longitudinal direction of the internal space 31. [ The plate member 70B may be a perforated plate in which a plurality of holes are formed in the plate surface.

According to such an embodiment, the above-described sloshing suppressing effect and the reinforcing effect of the absorbing column body 32 can be realized by the plate member 70B having a flat plate shape. According to this embodiment, the effect of suppressing sloshing is particularly excellent.

Although not specifically shown, the transverse member 70 described above may include both the girder member 70A and the lid member 70B.

5, the marine desulfurization apparatus 20 is configured such that the desulfurization apparatus 20 for a marine vessel is provided with a dispersing device for dispersing a washing liquid to the exhaust gas induced in the inner space 31 of the absorption tower main body section 32, Device 38 (38A). The scattering device 38A has a length extending parallel to each of the pair of long side wall surfaces 32a and 32b (see FIG. 11) in the inner space 31 of the absorption tower body portion 32 Direction spray pipe 38a1, and a plurality of spray nozzles 38a2 formed in the longitudinal spray pipe 38a1.

In some embodiments, one longitudinal spray pipe 38a1 may be formed at a substantially central position in the width direction of the inner space 31. [ In some embodiments, a plurality of longitudinal water spray pipes 38a1 may be formed at equal intervals in the width direction of the inner space 31. [

According to this embodiment, the distance from each of the plurality of spray nozzles 38a2 formed in the same longitudinal spray pipe 38a1 to the long wall faces 32a and 32b can be made constant. This makes it possible to uniformly disperse the cleaning liquid in the inner space 31 and thereby suppress the influence of the problem that the dispersion of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship 1 .

8 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention. The absorption tower 30 shown in Fig. 8 differs from the absorption tower 30 shown in Fig. 5 described above only in the configuration of the dispersion apparatus 38 thereof. Therefore, the same components are denoted by the same reference numerals, and a description thereof will be omitted.

8, the marine desulfurization apparatus 20 is provided with a dispersion device 38 for dispersing a cleaning liquid against the exhaust gas introduced into the inner space 31 of the absorption tower body portion 32 (38B)). The scattering device 38B extends parallel to each of the pair of short side wall surfaces 32c and 32d (see FIG. 11) in the inner space 31 of the absorption tower body portion 32 A plurality of width direction spray pipes 38b1 arranged at equal intervals and at least one spray nozzle 38b2 formed in each of the plurality of width direction spray pipes 38b1.

In some embodiments, a plurality of spray nozzles 38b2 may be arranged at equal intervals in each of the plurality of width direction spray pipes 38b1. In some embodiments, the spraying nozzles 38b2 disposed in each of the adjacent width direction spray pipes 38b1 may be arranged so as not to overlap in the width direction. In some embodiments, the plurality of spray nozzles 38b2 arranged in the plurality of width direction spray pipes 38b1 may be arranged in a zigzag manner in plan view.

According to this embodiment, the dispensing areas of the spray nozzle 38b2 formed in each of the plurality of width direction spray pipes 38b1 can be set to be the same. This makes it possible to uniformly disperse the cleaning liquid in the inner space 31 and thereby suppress the influence of the problem that the dispersion of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship 1 .

(Aspect ratio)

As described above, the planar shape of the inner space 31 is not limited to the rectangular shape, but may be formed in a rectangular shape having an elongated direction, an elliptical shape, a rectangular shape, or the like as long as the effect of the present invention is exerted will be.

Fig. 12 is a view for explaining the relationship between the planar shape and the shape (aspect ratio L / W) of the inner space of the absorption tower main body in the ship desulfurization apparatus according to the embodiment of the present invention. As shown in Figs. 12 (a) to 12 (c), in some embodiments, the inner space 31 of the absorption tower body 32 includes an arc shape at least in a part of a planar shape. More specifically, in some embodiments, as shown in Fig. 12 (a), a pair of short side walls extending parallel to each other, and a pair of circles connecting the ends of the pair of short side walls And is formed in a substantially rectangular shape defined by an arc-shaped wall surface. In some other embodiments, as shown in Fig. 12 (b), the inner space 31 of the absorption tower body 32 is formed in an elliptical shape. In some other embodiments, as shown in Fig. 12 (c), a pair of long side walls existing parallel to each other and a pair of arc-shaped walls connecting the ends of the pair of long side walls are defined As shown in Fig.

According to the above configuration, the effects of the present invention described above can be exhibited by providing the configurations in the above-described several embodiments. For example, since the internal space of the absorber main body portion is configured to have a longitudinal direction along the exhaust gas introducing direction, dead space is not generated much as compared with the conventional annular absorption tower, It is excellent in layout when placed. Further, it is possible to provide a desulfurization apparatus for marine vessels excellent in the arrangement of, for example, ULCS or the like (for an ultra-large vessel of which the absorption tower having a planar shape having a longitudinal direction along the exhaust gas introduction direction is excellent in placement property) have. The risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine dust can be reduced as compared with the case where the inner space of the absorption tower body portion has the longitudinal direction along the direction orthogonal to the exhaust gas introduction direction.

By setting the upper limit of the ratio W: L of the maximum width (W) and the maximum length (L) of the inner space to 1: 6.0, the unevenness of the exhaust gas flow in the absorption tower It may be made within the practical limits of the examination.

According to the above configuration, the inner space 31 of the absorption tower main body portion 32 includes an arc shape at least in a part of the planar shape, so that the absorption tower main body portion 32 has the inner space 31 It is possible to form a space that can be used, for example, by passing a pipe through a portion corresponding to the outer side of the portion including the arc of the pipe.

(material)

Since the marine desulfurization device 20 is exposed to the outside, there is a possibility that the outer wall surface rusts or corrodes due to sea breeze or rainwater. In addition, when seawater is used as the cleaning liquid as described above, there is a possibility that the inner wall surface defining the inner space 31 of the absorption tower 30, and the dispersing device 38 are rusted or corroded. Further, since the ship desulfurization apparatus 20 is mounted on the ship 1, it is necessary to consider the weight, workability, durability and maintainability.

In some embodiments, the wall surfaces (long side walls 32a, 32b, and 32b) of the absorption tower 30 (including the absorption tower body 32, the exhaust gas inlet 34 and the exhaust gas outlet 36) (Including the short side wall surfaces 32c and 32d) and a water spraying pipe 38c1 (including a longitudinal water spray pipe 38a1 and a width water spray pipe 38b1) of a spray device 38 and a water spray nozzle 38c2 (including spray nozzles 38a2, 38b2) are made of carbon steel (usually steel) such as SS400. On the wall surface of the absorption tower 30, the sprinkling pipe of the spray device 38, and the inner and outer surfaces of the spray nozzle, a corrosion-resistant coating is applied. In this case, the absorber 30 and the dispersing device 38 are excellent in workability because carbon steel is used, and corrosion resistance is excellent because a corrosion-resistant coating is applied.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some other embodiments, a method lining such as a resin lining or a flake glass lining is applied to the wall surface of the absorption tower 30, the spray pipe of the spray device 38, and the inner and outer surfaces of the spray nozzle. The resin used for the resin lining includes, for example, FRP. In this case, the absorber 30 and the dispersing device 38 are excellent in corrosion resistance because the method lining is carried out.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some other embodiments, the wall surface of the absorption tower 30 and the material of the water spray pipe and spray nozzle of the spray device 38 are high corrosion resistant stainless steel (stainless steel) such as SUS316L. In this case, the absorber 30 and the dispersing device 38 are excellent in workability and corrosion resistance due to the use of high corrosion-resistant stainless steel, and in the case where a corrosion-resistant coating or a method lining is applied The manufacturing time can be shortened, and the durability and the maintenance property are excellent.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some other embodiments, the material of at least a part of the absorption tower body portion 32 and the exhaust gas lead-out portion 36 located above the absorption tower 30 is FRP (fiber reinforced plastic). In this case, at least a part of the absorption tower body portion 32 and the exhaust gas lead-out portion 36 located above the absorption tower 30 are excellent in workability and corrosion resistance because FRP is used, The manufacturing time can be shortened and the durability and the maintenance property are excellent compared with the case where the epicardial coating or the method lining by the epicentral paint is performed. And, it can be made lighter than when carbon steel or stainless steel is used. In addition, since the center of gravity of the absorption tower 30 can be set to a low position by making the portion having a small load applied above the absorption tower 30 light, the absorption tower 30, which has high resistance to rolling, .

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

(Top of tower)

As described above, when the planar shape of the absorption tower is formed in a shape having a longitudinal direction along the exhaust gas introduction direction, the shape of the absorption tower is changed from the front side (the exhaust gas inlet side) and the inside (the side opposite to the exhaust gas inlet side) The gas flow rate greatly changes, making it difficult to uniformly flow the exhaust gas in the absorption tower, and the flow of the exhaust gas in the absorption tower may become uneven.

Fig. 13 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, and is a view seen from direction A shown in Fig. 5. Fig. As shown in Fig. 13, in some embodiments, the absorption tower 30 is arranged in such a manner that the dispersion state of the cleaning liquid by the above-described dispersion device 38, the flow of the exhaust gas inside the internal space 31 And an internal space checking device 80 for checking the internal space.

13, the internal space checking device 80 includes a light-permeable visibility window (not shown) for allowing the interior of the internal space 31 to be visually recognized from the outside of the absorption tower 30 (absorption tower body 32) (80A). The sight window 80A has a light-transmissive light-transmitting member such as a glass surface, for example, and the upper end (apex end) of the cleaning liquid dispersed by the dispersing device 38 is formed at a checkable height position. More specifically, as shown in Fig. 13, the visibility window 80A has a height (height) higher than the mist eliminator 37 and lower than the mist dispensing device 38 in the side end portion 39b on the other side . In some embodiments, as shown in Fig. 13, one sight window 80A is formed at a substantially central position in the width direction of the other side end portion 39b. In some embodiments, a plurality of viewing windows 80A are formed at regular intervals in the width direction of the other side end 39b.

The upper end (apex end) of the cleaning liquid dispersed by the dispersing device 38 is arranged in the absorber 30 including the above-described filler layer 35 so that the water spraying nozzle 38c2 And water spray nozzles 38a2 and 38b2). 15, which will be described later, is located at a maximum of about 10 m from the spray nozzle 38c2 of the spray device 38 in the absorber 30 without the filler layer 35. [ In the absorption tower not having the filling layer 35, the sprinkling nozzle 38c2 is installed downward, and spraying or spraying of vapor-liquid may be performed using a tray. The above-described embodiments and some embodiments to be described later can be applied to the absorber without these filling layers 35 as well. In some embodiments, the sight window 80A is disposed at a position approximately the same height as the upper end (apex end) of the cleaning liquid. 15, the viewing window 80A is provided inside the side end portion 39c (opposite to the exhaust gas inlet) in the width direction of the absorption tower body portion 32, As shown in FIG.

The absorption tower 30 includes the inside space identifying device 80 (sight window 80A), so that the scattering condition of the cleaning liquid by the dispersing device 38 and the inside of the inside space 31 It is possible to confirm the flow of the exhaust gas and the like. When the scattering condition by the scattering device 38 is bad, treatment such as washing of the spraying nozzle 38c2 of the scattering device 38 is performed to improve the scattering condition by the scattering device 38 . It is also possible to form the internal space identifying device 80 (sight window 80A) at a position near the other side in the longitudinal direction of the side end portion 39b and in the width direction side end portion 39c (the side opposite to the exhaust gas inlet) It is possible to confirm the flow of the exhaust gas on the opposite side of the exhaust gas inlet port, which is difficult to confirm in the internal space checking device 80 (sight window 80A) formed on the exhaust gas inlet side.

Incidentally, the absorption tower 30 includes the inside space determination device 80 (sight window 80A), so that the angle of the cleaning liquid sprayed from the spray nozzle 38c2 of the spray device 38 can be confirmed, The state of the sloshing can be grasped from the angle of the sloshing. Further, in some other embodiments, the angle of the cleaning liquid can be easily confirmed by forming a mark such as a straight line extending in the vertical direction or the horizontal direction on the light transmitting member of the sight window 80A. Further, the above-mentioned mark is made of a metal wire or the like, so that the sight window 80A can be reinforced.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In addition, in some embodiments, the internal space determining device 80 (the sight window 80A) may be used for other purposes than the confirmation of the scattering situation of the scattering device 38. [ For example, a sight window 80A is formed on the side of the exhaust gas inlet so as to confirm the flow of the exhaust gas on the exhaust gas inlet side, or a visibility window is provided at a height position near the liquid surface of the retention space 31a, The storage space 80A may be formed to confirm the storage space 31a.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

14 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, which is an example of an absorption tower (a liquid column tower, a spray tower, a tray type absorption tower, or the like) to be. 13 and 14, the above-described ship desulfurization apparatus 20 according to some embodiments includes the absorption tower body 32 and the absorption tower 80A including the above-described sight window 80A described above, (30). In this case, the absorption tower 30 includes an absorption tower main body portion 32 configured such that exhaust gas flows through the internal space 31, and an internal space 31 from the outside of the absorption tower main body portion 32 And includes a viewable light transmissive viewing window 80A. In the ship desulfurization apparatus 20 having the absorption tower 30 as described above, the operator or the like can confirm the flow of the exhaust gas flowing through the internal space 31 through the sight window 80A.

In some embodiments, as shown in Figs. 13 and 14, in the ship desulfurization apparatus 20 having the absorption tower 30 including the absorption tower body 32 and the visibility window 80A described above, , And the inner space 31 of the absorption tower body 32 has a longitudinal direction. The absorption tower main body portion 32 described above has the exhaust gas inlet port 33 described above communicating with the internal space 31 at one end portion in the longitudinal direction of the internal space 31 have. The visibility window 80A described above is formed on the other side in the longitudinal direction of the internal space 31. [ Here, the term " other side " refers to a side farther from one side than the center in the longitudinal direction of the inner space 31.

In the embodiment shown in Fig. 13, one sight window 80A is formed at a substantially central position in the width direction of the other side end portion 39b. In some other embodiments, a plurality of viewing windows 80A are formed at regular intervals in the width direction of the other side end 39b.

In the embodiment shown in Fig. 14, the sight window 80A is formed at a position near the inside (opposite to the exhaust gas inlet) of the side end portion 39c in the width direction of the absorption tower body portion 32. [

The gas flow rate of the exhaust gas flowing into the adsorption tower 30 is greatly different from that of the exhaust gas inlet 33 and the exhaust gas inlet 33, There is a possibility that the flow of the gas is uneven. The absorption tower body 32 has an exhaust gas inlet 33 communicating with the internal space 31 at one end of the internal space 31 in the longitudinal direction thereof. The viewer window 80A is provided on the other side in the longitudinal direction of the internal space 31 such as the side edge portion 39b on the other side in the longitudinal direction and the inside side edge portion 39c in the width direction Gas introduction port and the opposite side). The worker or the like can confirm the flow of the exhaust gas on the opposite side of the exhaust gas inlet 33 through the sight window 80A if it is difficult to confirm in the sight window formed on the side of the exhaust gas inlet 33 .

In some embodiments, in the ship desulfurization apparatus 20 having the absorption tower 30 including the absorption tower body 32 and the visibility window 80A described above, the above-described dispersion apparatus 38, . The spray device 38 has the spray nozzle 38c2 described above (including spray nozzles 38a2 and 38b2) capable of spraying the washer fluid into the inner space 31. [ The visibility window 80A described above is disposed at a position where the spray nozzle 38c2 can be seen. In this case, since the visibility window 80A described above is disposed at a position where the watering nozzle 38c2 can be seen, the operator or the like is able to visually confirm the spraying of the cleaning liquid by the spray nozzle 38c2 through the sight window 80A It is possible to confirm the scattering condition of the cleaning liquid by the dispersing device 38, such as a situation. When the spraying condition of the spraying liquid by the spraying device 38 is bad, the dispersion of the spraying device 38 can be improved by performing treatment such as cleaning of the spraying nozzle 38c2.

In some other embodiments, in the ship desulfurization apparatus 20 having the absorption tower 30 including the absorption tower body 32 and the visibility window 80A described above, the above-described dispersion apparatus 38 . The spray device 38 has the spray nozzle 38c2 described above (including spray nozzles 38a2 and 38b2) capable of spraying the washer fluid into the inner space 31. [ The water spray nozzle 38c2 is configured to be capable of spraying the cleaning liquid upward. The cleaning liquid sprayed upward from the spray nozzle 38c2 rises to the upper end (apex end) in the inner space 31 and then falls off spontaneously. The visibility window 80A described above is formed at a height position where the upper end (apex end) of the cleaning liquid dispersed by the dispersing device 38 can be confirmed. More specifically, the sight window 80A is disposed at a position approximately the same height as the upper end (apex end) of the cleaning liquid in the design. In this case, since the above-described visibility window 80A is arranged at a position where the upper end of the cleaning liquid dispersed by the dispersing device 38 can be identified, the operator or the like, through the sight window 80A, It is possible to confirm whether or not the scattering condition of the washing liquid by the washing liquid 38 is proper.

In some embodiments, in the absorption tower 30 having the filling layer 35 as shown in Fig. 13, the viewing window 80A is located above the spray nozzle 38c2 of the spray device 38 Is formed at a height position spaced apart by 0.5 m or more and 1.5 m or less, preferably 0.7 m or more and 1.3 m or less, further preferably 0.8 m or more and 1.2 m or less. In this case, the operator can confirm the top (apex end) of the cleaning liquid sprayed by the spray device 38 through the sight window 80A.

14, in the absorber 30 without the filling layer 35, the visibility window 80A is located above the water spray nozzle 38c2 of the spray device 38. In other words, At a height of not less than 5 m and not more than 15 m, preferably not less than 7 m and not more than 13 m, and more preferably not less than 8 m and not more than 12 m. In this case, the operator can confirm the top (apex end) of the cleaning liquid sprayed by the spray device 38 through the sight window 80A.

In some embodiments, an absorption tower 30 including the absorption tower body 32 and the sight window 80A described above, and a desulfurization apparatus 38 for a ship having a spraying apparatus 38 having a spray nozzle 38c2, The absorption tower main body portion 32 described above is configured such that the exhaust gas flows upward from below in the vertical direction and in the inner space 31 the water spray nozzle 38c2 And the mist eliminator 37 described above formed above the liquid crystal display panel. 13 and 14, the sight window 80A is disposed above the spray nozzle 38c2 and below the mist eliminator 37. [ In this case, the absorption tower body 32 is configured so that the exhaust gas flows upward from below in the vertical direction. The sight window 80A is disposed above the spray nozzle 38c2 and below the mist eliminator 37. [ Even if the sight window 80A is formed above the mist eliminator 37 because the exhaust gas is in gas-liquid contact with the cleaning liquid below the mist eliminator 37, The scattering state of the cleaning liquid can not be confirmed. By using the above-described arrangement of the visibility window 80A, the operator can confirm the scattering condition of the cleaning liquid by the scattering device 38 through the sight window 80A. Particularly, in the case where the spray nozzle 38c2 is configured to inject the cleaning liquid upward, the operator confirms the top of the cleaning liquid sprayed by the spray device 38 through the above-described sight window 80A, It can be confirmed whether or not the scattering situation of the cleaning liquid is appropriate.

The invention relating to the above-mentioned several embodiments is also applicable to a quasi-absorber or annular absorber having an aspect ratio exceeding 1: 1.1 and not exceeding 1: 6.0.

(filling)

As described above, in the filling layer 35, for example, a plurality of regular filling materials are laminated in several layers. Here, the filling material (filler) in the filling layer 35 enhances the vapor-liquid contact efficiency of the exhaust gas and the cleaning liquid inside the absorption tower 30. The absorption tower 30 is a structure in which when the piled material in the filling layer 35 moves due to fluctuation (rolling, pitching, yawing, etc.) of the ship 1, There is a risk of being discharged to the outside of the absorption tower.

Fig. 15 is a perspective view (conceptual view) for explaining a filling material according to an embodiment of the present invention. Fig. As shown in Fig. 15, in some embodiments, a plurality of fillers 35A in the filling layer 35 are arranged side by side vertically and horizontally. As shown in Fig. 15, the filling material 35A is formed in a substantially rectangular parallelepiped shape. The filler 35A has, for example, an outer diameter dimension of 500 mm, 500 mm and 100 mm. A plurality of the fillers 35A are arranged vertically and horizontally at positions where the filler layers 35 of the internal space 31 are formed. In the filling layer 35, the fillers 35A may not be laminated but a single layer of the fillers 35A may be arranged side by side in the lateral direction.

According to the above configuration, since the filling material 35A in the filling layer 35 is arranged at least horizontally side by side with each other, movement due to the shaking motion of the ship 1 is limited, It is possible to reduce the risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine mist.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the filler 35A comprises at least a portion of a regular filler, and in some other embodiments, the filler 35A includes at least a portion of a filler. Here, the term " regular filler " refers to a filler suitable for regular stacking, and " irregular filler " refers to a filler that accumulates irregularly when filled. The irregular filling material has a larger required pressure loss than the regular filling material, but can improve the dispersibility of the washing liquid. For this reason, the filling material 35A is selected from either the regular filling material or the irregular filling material, or the proportions of the regular filling material and the irregular filling material depending on the required pressure drop and the treatment performance of the cleaning liquid.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the above-described ship desulfurization apparatus 20 includes the absorption tower 30 including the above-described absorption tower main body portion 32, the above-described dispersion apparatus 38, The filling material 35A filled in the filling space 35 formed in the inner space 31 is provided with a filling material 35A configured to make the washing liquid in vapor-liquid contact with the exhaust gas passing through the filling layer 35 . In this case, the marine desulfurization apparatus 20 is configured such that when the exhaust gas flows between the fillers 35A filled in the filler layer 35 (clearance), the cleaning liquid having a larger contact area on the surface of the filler 35A, So that the exhaust gas that is out of flow by the filling material 35A can be brought into gas-liquid contact. According to such a ship desulfurization apparatus 20, since the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas can be enhanced by the filler 35A, the sulfur contained in the exhaust gas can be prevented Can be effectively removed.

FIG. 16 is a schematic view for explaining a method layer in an embodiment of the present invention, and is a schematic view showing an absorption tower of a marine desulfurization apparatus. FIG. As shown in Fig. 16, in some embodiments, a wall surface (long side wall surfaces 32a and 32b) and short side wall surfaces 32c and 32d defining the inner space 31 of the absorption tower body portion 32 The base layer 84 is formed on at least a part of the wall surface other than the wall surface for partitioning the filling layer 35. [ On the wall surface of the absorbing column main body portion 32 partitioning the packed bed, the anti-corrosive layer 84 is not formed. The method layer 84 includes the above-described epic coating with the epic paint and the above-mentioned method lining.

The absorption tower 30 (absorption tower body 32) is assembled by a block method. That is, the absorption tower 30 (absorption tower main body 32) is manufactured by forming several layered portions such as a round cut, and each of the layered portions is piled up so that the portions are connected to each other to fit each other.

16, the absorption tower main body portion 32 includes a first layered portion 32A having a wall surface for partitioning the filling layer 35, And a second layered portion 32B having a wall surface partitioning the storage space 31a and the lower side internal space 31b as a second layered portion 32B which is a portion below the first layered portion 32A in the first layered portion 32A And a third layered portion 32C that is a portion above the first layered portion 32A in the absorption tower body portion 32 and has a wall surface defining the upper side internal space 31c, And the layered portions 32C are piled up one upon the other so that the portions are connected to each other to complete it.

The material of the second layered portion 32B, the third layered portion 32C and the exhaust gas inlet 34 is, for example, carbon steel (ordinary steel) such as SS400. 16, a method layer 84 is formed on the wall surfaces (inner wall surfaces) of the second layered portion 32B, the third layered portion 32C, and the exhaust gas inlet 34. As shown in Fig. On the other hand, the material of the first layered portion 32A is high corrosion resistant stainless steel (stainless steel) such as SUS316L. As shown in Fig. 16, the method layer 84 is not formed on the wall surface (inner wall surface) of the first layered portion 32A.

A wall surface (inner wall surface) for defining the inner space 31 of the absorption tower main body portion 32 or the like is formed in the desulfurization apparatus 20 for marine, because hot exhaust gas flows in the absorption tower main body portion 32, There is a risk of corrosion due to sulfur contained in the exhaust gas. Further, when seawater is used as the cleaning liquid, there is a fear that the above-mentioned wall surface or the like is corroded by seawater. Normally, in order to protect the wall surface described above, it is conceivable to form the corrosion-proof layer 84 over the entire surface of the wall surface described above. However, due to the shaking of the ship, the filling material 35A moves to collide with the method layer 84 for protecting the wall surface defining the filling layer 35, and there is a fear that the method layer 84 is peeled or damaged. Peeling or damage of the corrosion-resistant layer 84 may cause corrosion of the wall surface protected by the corrosion-resistant layer 84. [

The vessel desulfurization apparatus 20 is constructed such that the wall surface (inner wall surface) defining the inner space 31 of the absorption tower main body portion 32 has a wall surface other than the wall surface partitioning the filling layer 35 Type layer 84 is formed. The filler 35A moves due to the shaking of the ship and collides with the permeable layer 84 to peel off the permeable layer 84 and peel off the damaged layer 35. As a result, It is not necessary to form the epilating layer 84 on the wall surface for partitioning the packed bed 35 and instead the layered portion surrounding the packed bed 35 in the absorbing column body 32 (The first layered portion 32A) is made of, for example, a corrosion-resistant material such as stainless steel, the corrosion of the wall surface is suppressed. Such a ship desulfurization apparatus 20 can prevent the corrosion of the wall surface defining the internal space 31 while preventing damage to the corrosion layer 84 by the filler 35A.

In some embodiments, the absorption tower 30 including the absorption tower body 32 described above, the above-described dispersion apparatus 38, and the ship desulfurization apparatus (for example, 20), the filling material 35A is a regular filling material. In this case, the marine desulfurization apparatus 20 can reduce the pressure loss of the exhaust gas as compared with the case where the filling material 35A is the irregular filling material because the filling material 35A is the regular filling material, The throughput can be increased. Therefore, the shipborne desulfurization apparatus 20 using the regulating filler 35A as a filler enables the downsizing of the absorber 30 as compared with the shipborne desulfurization apparatus 20 using the irregular filling material 35A. In addition, the regulation filler does not move well due to the shaking of the vessel 1 as compared with the irregular filling, and the arrangement of the vessel 1 is not uniform due to the shaking. Therefore, compared to the desulfurization apparatus 20 for marine use in which the irregular filling material is a filler 35A, the desulfurization apparatus 20 for marine vessel using the regulating filler 35A as the filling material 35A is capable of preventing the exhaust gas from entering the absorption tower 30 The risk of being discharged to the outside can be reduced.

In some embodiments, the absorption tower 30 including the absorption tower body 32 described above, the above-described dispersion apparatus 38, and the ship desulfurization apparatus (for example, 20, the absorption tower body portion 32 is configured so that the exhaust gas flows upward from below in the vertical direction. The spraying device 38 is configured to spray the cleaning liquid upward. In this case, the spraying device 38 is configured to spray the cleaning liquid upward. The cleaning liquid sprayed upward is distributed and dispersed on the surface of the filling material 35A of the inner space 31, for example, by being finely dispersed after being dispersed at the top (apex portion). When the internal space 31 flows upward from the lower side in the vertical direction, the exhaust gas contacts with the cleaning liquid adhering to the surface of the packing 35A or the cleaning liquid dropping to remove sulfur contained in the exhaust gas do.

The invention relating to the above-mentioned several embodiments is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the filler 35A has a strength such that at least the upper surface can correspond to a load of a person. In this case, it can be used as a footrest in the case of installing components in the internal space 31 or in maintenance work.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the distance Hn between the filling layer 35 and the spray device 38 shown in Fig. 13 is 2 m or more. In this case, since the work space is ensured, the installation and replacement work of the dispersing device 38 can be efficiently performed. Furthermore, by increasing the size of the manhole that connects the inner space 31 to the outside in accordance with the enlargement of the work space, the installation and replacement work of the dispersing device 38 is further facilitated.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, as shown in Fig. 14, a pH adjuster 81 is disposed in at least a part of the retention space 31a. More specifically, as shown in Fig. 14, the pH adjuster 81 includes a lock-type alkaline agent 81A which is evenly laid on the inside of the mesh and uniformly spreads on at least a part of the bottom surface of the storage space 31a have. Further, in some embodiments, the alkaline agent 81A on the lock is evenly spread on one side of the bottom of the retention space 31a.

According to the above configuration, since the lock-type alkaline agent 81A is disposed at least in a part of the storage space 31a, the alkaline agent 81A on the lock side is brought into contact with the seawater (cleaning liquid) The pH value can be raised by neutralizing the seawater after the low pH desulfurization. In addition, since the wicking during sloshing can be reduced by uniformly spreading the alkaline agent 81A on the lock surface on one side of the bottom of the storage space 31a, Can be reduced. In order to reduce the wormhole at the time of sloshing, when the amount of the cleaning liquid in which the absorption tower 30 is stored in the storage space 31a exceeds a predetermined amount as shown in Fig. 14, It is possible to suppress the flow of the cleaning liquid, which has been scattered by the wiping at the time of sloshing, to the downstream side because the cleaning liquid does not reach a certain amount.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

14, the absorption tower 30 is provided between the reservoir space 31a and the internal space 59a of the seawater discharge pipe 59 and between the above described partition 82 and the above- The lower end of the side end portion 39b on the other side in the longitudinal direction and the bottom surface of the storage space 31a and the ceiling portion 83 extending from the side end portion 39b along the vertical direction toward the sea water discharge pipe 59 side And a seawater passage space 82a is formed. The above-described rocking alkaline agent 81A is evenly spread on one surface of the bottom of the sea water passing space 82a.

The alkaline agent 81A on the lock side is contacted with the seawater (cleaning liquid) after the low pH desulfurization including the sulfurous acid in contact with the alkaline agent 81A on the lock side, The pH value can be raised by neutralizing the seawater after the low pH desulfurization.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, a hatch 83a that can be opened and closed is formed in the ceiling portion 83 located above the seawater passage space 82a. In this case, by opening the hatch 83a, the alkaline agent 81A on the lock in the seawater passageway space 82a can be exchanged with the net, so that the operation of replacing the alkaline agent 81A on the lock can be performed efficiently.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

As shown in Fig. 14, in some embodiments, the absorption tower 30 is configured not to include the filling layer 35 for separating the lower side inner space 31b from the upper side inner space 31c have. Here, in Fig. 14, the lower side inner space 31b is provided below the dispersing device 38, and the upper side inner space 31c is provided above the dispersing device 38. [ The scattering device 38 is disposed near the lower portion of the absorption tower body 32 as compared with the case where the filling layer 35 is provided. Therefore, the upper side inner space 31c has a length along the vertical direction.

According to the above configuration, since the upper side internal space 31c has a length along the vertical direction, the upper end (apex end) of the cleaning liquid dispersed from the dispersing device 38 can be set at a higher position. Therefore, the absorption tower 30 can reduce the risk that the exhaust gas is discharged to the outside of the absorption tower while being in the form of fine dust, even if the filling layer 35 is not provided.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

17 is a schematic view showing an absorption tower of a marine desulfurization apparatus according to an embodiment of the present invention, and is a view for explaining a wall reinforcing member and a partition wall. As shown in Fig. 17, in some embodiments, the absorption tower 30 has a wall surface reinforcement member 92 formed inside the absorption tower body portion 32. As shown in Fig. As shown in Fig. 17, the wall reinforcing member 92 is fixed to one of a pair of long wall surfaces 32a and 32b and a pair of short wall surfaces 32c and 32d, And protrudes toward the inner space 31, and has a longitudinal direction along a wall surface fixed in the horizontal direction. In this case, the structural strength of the absorption tower 30 can be maintained by the wall reinforcing member 92.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, as shown in Fig. 17, the absorption tower 30 includes at least one partition disposed in the inner space 31 and extending along the longitudinal direction to divide the inner space 31 into a plurality of spaces And a wall 93. In this case, the structural strength of the absorption tower 30 can be maintained by the partition wall 93, and the exhaust gas can be rectified by the partition wall 93.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 has a pair of long side wall surfaces 32a and 32b formed in a thicker thickness than a pair of short side wall surfaces 32c and 32d. In this case, the structure strength of the absorption tower 30 can be maintained by forming the pair of long wall surfaces 32a and 32b as the back wall.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

(spray)

In some embodiments, as shown in Figs. 5, 8 and 14, the ship desulfurization apparatus 20 described above includes the absorption tower 30 including the absorption tower body 32 described above, And a dispersing device 38 are provided. The spray device 38 includes a water spray pipe 38c1 (including a longitudinal water spray pipe 38a1 and a width water spray pipe 38b1) extending in the inner space 31 and a water spray pipe 38c1 And a plurality of spray nozzles 38c2 (including spray nozzles 38a2 and 38b2) arranged at a predetermined interval. In this case, the shipborne desulfurization apparatus 20 injects the cleaning liquid flowing through the water spray pipe 38c1 from each of a plurality of spray nozzles 38c2 arranged at a predetermined interval in the spray pipe 38c1, 31) can be uniformly dispersed. Therefore, the ship desulfurization apparatus 20 can suppress the influence of the problem that the scattering of the cleaning liquid becomes uneven due to the fluctuation (rolling, pitching, yawing, etc.) of the ship 1.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is formed as a longitudinal shape having a longitudinal direction, and further includes at least one support capable of supporting the spray pipe 38c1 of the spray device 38 from below. The support may be a round bar, a square bar, a flat plate, an L-shaped plate, or the like. The supports are arranged so that the longitudinal direction crosses the longitudinal direction of the water spray pipe, and both end portions in the longitudinal direction are fixed to the wall surface of the absorption tower body portion 32. When a plurality of supports are provided, the plurality of supports are arranged to be equally spaced from each other along the longitudinal direction of each other. Further, the water spray pipe 38c1 may be fixed to the support.

The water spray pipe 38c1 of the spray device 38 is supported from the lower side by the support so that the spray water pipe 38c1 itself does not need to have the structural strength and the water spray pipe 38c1 of the spray water pipe 38c1 It is possible to reduce the size and weight. In addition, when the water spray pipe 38c1 is installed or exchanged, the work can be performed in a state in which the water spray pipe 38c1 is stuck on the support, so that the installation work and the replacement work can be efficiently performed. In addition, when the supports are arranged at equal intervals, the spray nozzle 38c2 is formed between the supports so that the spray nozzle 38c2 can be easily arranged evenly.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorber 30 further comprises a plurality of the above-described supports. The plurality of supporters are arranged at regular intervals in the height direction of the absorption tower (30).

According to the above configuration, since the plurality of supports are arranged at regular intervals in the height direction of the absorption tower 30, the height position of the water spray pipe 38c1 can be changed. Further, since the plurality of supports can be used, for example, in the installation of the work chief at the time of maintenance of the lining, the labor of the chief worker can be omitted, and the installation work time can be shortened. Further, since the plurality of supports can be freely utilized for applications other than the installation of the work chief, the maintenance of the absorption tower 30 can be improved. Here, since the ship 1 is limited in terms of operation period or docking period on the seawall due to problems such as docking cost, the maintenance performance of the absorption tower 30 provided in the ship 1, Shortening of time is especially important.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the water spray pipe 38c1 of the spray device 38 has a structural strength that is unnecessary to be supported from the lower side by the support. In this case, it is not necessary to provide a support in the absorber 30.

Further, in some embodiments, the water spray pipe 38c1 of the spray device 38 has a strength capable of responding to a load of a person. In this case, the water spray pipe 38c1 can be used as a patriarch in the case of installing components in the internal space 31 or in maintenance work.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the water spray pipe 38c1 of the spray device 38 is detachably fixed to the absorption tower body 32 by fastening means such as bolts. In this case, since the water spray pipe 38c1 is detachably fixed to the absorption tower main body 32, the water spray pipe 38c1 can be easily replaced. Therefore, the maintenance property of the absorption tower 30 can be improved.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less. Further, the invention relating to the present embodiment can be applied to any of an absorption tower including a support and an absorption tower not including a support.

In some embodiments, the spray nozzle 38c2 of the spray device 38 is detachably fixed to the spray pipe 38c1 by fastening means such as bolt fixing or screw fastening. In this case, since the spray nozzle 38c2 is detachably fixed to the spray pipe 38c1, it is possible to easily carry out the replacement work of the spray nozzle 38c2. Therefore, the maintenance property of the absorption tower 30 can be improved.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less. Further, the invention relating to the present embodiment can be applied to any of an absorption tower including a support and an absorption tower not including a support.

(Desulfurization tower shear)

18 is a view for explaining an exhaust gas cooling apparatus of a marine desulfurization apparatus according to an embodiment of the present invention. As shown in Fig. 18, in some embodiments, the marine desulfurization apparatus 20 is disposed in the vertical portion 34B of the exhaust gas introducing portion 34, so that the exhaust gas introduced into the exhaust gas introducing portion 34 And an exhaust gas cooling device 85 for dispersing the cooling water. The exhaust gas cooling device 85 includes a water spray pipe 85a extending in parallel or perpendicular to a pair of wall faces located on both sides in the width direction of the exhaust gas inlet 34, And a plurality of cooling water nozzles 85b formed in the cooling water nozzles 85a. Here, each of the water spraying pipe 85a and the cooling water nozzle 85b includes the water spray pipe 38c1 (including the longitudinal water spray pipe 38a1, the width water spray pipe 38b1) and the water spray nozzle 38c2 (Including the spray nozzles 38a2 and 38b2), the description of common matters will be omitted.

According to the above arrangement, the temperature of the exhaust gas introduced into the exhaust gas inlet 34 can be lowered by dispersing the cooling water. Therefore, the temperature rise in the exhaust gas introducing portion 34 can be suppressed. Here, the absorption tower 30 for ships has a higher temperature of the exhaust gas guided into the exhaust gas inlet 34 than the absorption tower for land where a heat exchanger for heat exchange of the exhaust gas is disposed on the upstream side will be. More specifically, the land-use absorption tower is cooled to about 170 DEG C before being introduced into the exhaust gas introduction portion 34, but the absorption tower for marine is configured such that exhaust gas of about 300 DEG C is supplied into the exhaust gas introduction portion 34 Direct induction. Further, in the case where a method lining (seismic layer 84) is applied to the exhaust gas introducing portion 34 of the absorber 30 for a ship, there is a possibility that the method lining is damaged by the heat of the exhaust gas. In addition, at the time of scattering by the dispersing device 38 of the absorption tower body portion 32, cooling at the inlet side of the exhaust gas introducing portion 34 can not be performed. Therefore, the exhaust gas cooling device 85 is particularly useful when it is provided in the absorber 30 for marine use. In addition, since the volume of the exhaust gas introduced into the exhaust gas inlet 34 can be reduced by dispersing the cooling water, a large amount of exhaust gas can be processed in the absorption tower 30.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

18, the exhaust gas cooling device 85 is connected to the cooling water supply pipe 58a branched from the sea water supply pipe 58 of the sea water supply device 50 at the branch point TP1 And the seawater introduced into the inside of the ship body 2 is supplied by the seawater supply pump 54a. In this case, since the seawater supply device 50 can be shared with the spray device 38, it is possible to prevent the size of the ship desulfurization device 20 from becoming larger and the structure to be complicated.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 further comprises an emergency cooling device 87 for supplying emergency cooling water to the exhaust gas cooling device 85 in an emergency, as shown in Fig. Here, the term "emergency" refers to a case where, for example, the dispersion of the dispersion apparatus 38 in the water supply tower 30 is not performed and the temperature of the exhaust gas becomes high. The emergency cooling device 87 is connected to the water spray pipe 85a and the emergency water tank 86 of the exhaust gas cooling device 85 and is connected to the water spray pipe 85a via the emergency water tank 85, (88) for supplying emergency cooling water from the cooling water pipe (86). The emergency cooling device 87 is configured to be operable even when the power source is lost and the power source is lost. For example, the emergency cooling device 87 may include a pressurized tank as the emergency tank 86, and the emergency tank 86 may be disposed at a high position and may be connected to the spray pipe 85a Emergency cooling water may be supplied. As shown in Fig. 18, an emergency shut-off valve 90 may be formed in the emergency-use coolant water line 88. The emergency shut-off valve 90 is configured to be closed while electricity is being supplied from the power source, and to open when the power source is lost. In this case, the emergency cooling device 87 that can be operated even in the event of a power failure can lower the temperature of the exhaust gas introduced into the absorption tower 30 by dispersing the cooling water in an emergency. Therefore, the rise of the temperature in the absorption tower 30 can be suppressed, so that the failure of the absorption tower 30 due to the high temperature can be prevented.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the ship desulfurization apparatus 20 further includes an emergency bypass device 89 for bypassing the absorption tower 30 to the exhaust gas in an emergency, as shown in Fig. The emergency bypass device 89 includes a switching damper 89a formed on the way of the exhaust gas pipe connected to the main engine 12 and the absorption tower 30 and a switching damper 89b formed on the auxiliary engine 14 and the absorption tower 30 And a switching damper 89b formed in the middle of the pipeline of the exhaust gas to be connected. In the normal state, the bypass damper 89a and the switching damper 89b are disconnected from the bypass flow path, while the flow path to the absorption tower 30 is opened. The bypass damper 89a and the switching damper 89b open the bypass flow path while abandoning the flow path to the absorption tower 30 in an emergency. In this case, the emergency bypass device 89 can prevent the exhaust gas from bypassing the absorption tower 30 in an emergency. Therefore, the rise of the temperature in the absorber 30 can be suppressed in an emergency, so that failure of the absorber 30 due to the high temperature can be prevented.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

19 is a view for explaining an exhaust gas cooling apparatus of a marine desulfurization apparatus according to an embodiment of the present invention. 19, the above-described marine desulfurization apparatus 20 includes the absorption tower body 32 and the exhaust gas inlet 33 (see FIG. 19) in which the exhaust gas inlet 33 described above is formed, And an exhaust gas cooling apparatus 85 described above capable of dispersing cooling water with respect to the exhaust gas introduced into the exhaust gas introducing unit 34. The exhaust gas introducing unit 34 is connected to the exhaust gas introducing unit 34, have. The exhaust gas cooling device 85 has a cooling water nozzle 85b configured to eject the cooling water toward the upstream side in the flow direction of the exhaust gas.

According to the above configuration, the marine desulfurization apparatus 20 is capable of supplying the cooling water to the exhaust gas introducing section 34 by distributing the cooling water to the exhaust gas introduced into the exhaust gas introducing section 34 by the exhaust gas cooling device 85 The temperature of the exhaust gas introduced into the exhaust gas introducing portion 34 can be suppressed. Since the ship desulfurization apparatus 20 introduces exhaust gas at a higher temperature than the desulfurization apparatus for land use formed in the power plant, it is important to lower the temperature of the exhaust gas in order to mitigate the influence on the desulfurizer and improve the desulfurization performance. Since the volume of the exhaust gas introduced into the exhaust gas inlet 34 can be reduced by dispersing the cooling water by the exhaust gas cooler 85, a large amount of exhaust gas can be treated in the absorber 30 . Since the cooling water nozzle 85b of the exhaust gas cooling device 85 ejects the cooling water toward the upstream side in the flow direction of the exhaust gas, it is introduced into the exhaust gas introduction portion 34 before reaching the cooling water nozzle 85b The temperature of the exhaust gas can be lowered, and the cooling water nozzle 85b can be prevented from being damaged by the heat of the exhaust gas.

19, the exhaust gas cooling apparatus 85 described above includes a first exhaust gas cooling apparatus 85C configured to supply seawater as cooling water from a seawater supply pump 54a, And a first exhaust gas cooling device 85D configured to supply industrial water as emergency cooling water from the emergency cooling device 87, for example. In short, the ship desulfurization apparatus 20 may have a dedicated device or piping for jetting the emergency-use cooling water from the cooling water nozzle 85b.

As described above, in some embodiments, the above-described cooling water is seawater introduced into the interior of the vessel 1. [ In this case, the marine desulfurization apparatus 20 can use the seawater introduced into the ship 1 as the cooling water, thereby suppressing the consumption amount of water such as industrial water required during the navigation of the ship 1. [

In some embodiments, the above-described marine desulfurization apparatus 20 includes the absorption tower main body portion 32 in which the exhaust gas inlet port 33 described above is formed and the exhaust gas inlet port 33 connected to the exhaust gas inlet port 33 An absorption tower 30 including a cooling water nozzle 34, and an exhaust gas cooling device 85 having the above-described cooling water nozzle 85b. The exhaust gas introducing portion 34 is configured so that the exhaust gas flows downward from above in the vertical direction. The cooling water nozzle 85b is configured to inject the cooling water upward.

Here, when the temperature of the exhaust gas is lowered by dispersing the cooling water by the exhaust gas cooling device 85 with respect to the exhaust gas introduced into the exhaust gas introducing portion 34, sulfurous acid may be generated. Further, when seawater is used as the cooling water, salt may precipitate from the seawater due to the temperature rise. If sulfurous acid or salt adheres to the cooling water nozzle 85b, the scattering performance may be deteriorated.

According to the above arrangement, the cooling water nozzle 85b is configured to inject the cooling water upward. The cooling water injected upward is brought into contact with the exhaust gas above the cooling water nozzle 85b, drops the temperature of the exhaust gas, and then falls on the cooling water nozzle 85b. The cleaning liquid dropped on the cooling water nozzle 85b can wash out the sulfurous acid or the salt attached to the cooling water nozzle 85b. It is also possible to suppress adhesion of sulfurous acid or salt to the cooling water nozzle 85b by keeping the cooling water nozzle 85b wet by the cleaning liquid dropped on the cooling water nozzle 85b, Temperature rise can be suppressed.

In some embodiments, the above-described marine desulfurization apparatus 20 includes the absorption tower main body portion 32 in which the exhaust gas inlet port 33 described above is formed and the exhaust gas inlet port 33 connected to the exhaust gas inlet port 33 An absorber 30 including an exhaust gas cooling device 34, and the exhaust gas cooling device 85 described above. Described exhaust gas cooling apparatus 85 includes the above-described cooling water supply pipe 58a (cooling water pipe path) for supplying cooling water to the above-described cooling water nozzle 85b and the cooling water nozzle 85b, The cooling water control valve 94 formed in the cooling water passage 58a (cooling water conduit) has a cooling water control valve 94 capable of controlling the amount of cooling water dispersed from the cooling water nozzle 85b.

The pressure of the cooling water on the primary side of the cooling water conduit upstream of the cooling water control valve 94 (on the side of the sea water supply pump 54a) is controlled by the height of the water line and the number of operations of the sea water supply pump 54a If the cooling water control valve 94 is not formed, the amount of dispersion of the cooling water dispersed from the cooling water nozzle 85b is largely varied due to the above-described fluctuation factors. Therefore, 34 may be insufficiently cooled. On the other hand, according to the above configuration, the exhaust gas cooling device 85 controls the amount of cooling water dispersed from the cooling water nozzle 85b by the cooling water control valve 94 to be introduced into the exhaust gas introducing portion 34 The exhaust gas can be sufficiently cooled.

In some embodiments, the cooling water control valve 94 described above adjusts the opening degree so that the pressure of the cooling water in the secondary side downstream of the cooling water control valve 94 (on the cooling water nozzle 85b side) Thereby controlling the amount of cooling water dispensed from the cooling water nozzle 85b.

19, if the downstream side (downstream side) of the cooling water supply pipe 58a is the downstream side cooling water supply pipe 58b, the downstream side cooling water supply pipe 58b is provided with a pressure gauge (not shown) 95 (fluid pressure detecting device) is formed. The pressure gauge 95 is configured to be able to detect the pressure of the cooling water in the downstream-side cooling water supply pipe 58b. The cooling water control valve 94 is configured to adjust the opening degree so that the pressure detected by the pressure gauge 95 becomes constant.

Since the pressure of the cooling water at the downstream side (downstream side) of the cooling water control valve 94 by the cooling water control valve 94 is made constant, the pressure of the cooling water at the time of ejecting from the cooling water nozzle 85b becomes constant , A certain amount of cooling water is always scattered at a constant height from the cooling water nozzle 85b. In this case, since a predetermined amount of cooling water can always be dispensed from the cooling water nozzle 85b, the exhaust gas introduced into the exhaust gas introducing portion 34 can be continuously cooled.

The continual detection of the pressure of the cooling water in the downstream side cooling water supply pipe 58b by the pressure gauge 95 is performed by continuously detecting the temperature of the cooling water in the downstream side cooling water supply pipe 58b by a thermometer, The detection is easy compared with other detecting devices such as detecting. In addition, since the pressure in the primary side fluctuates greatly as described above, it is unsuitable for the index of opening adjustment of the cooling water control valve 94. [ Therefore, by using the pressure in the secondary side detected by the pressure gauge 95 as an index of the opening degree adjustment of the cooling water control valve 94, the cooling water is dispersed from the cooling water nozzle 85b by the cooling water control valve 94 The control of the amount of cooling water to be dispensed can be facilitated.

The invention relating to the above-mentioned several embodiments is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the marine desulfurization apparatus 20 includes the above-described emergency cooling device 87, the above-described emergency bypass device 89, and the exhaust gas discharged from the outlet of the absorption tower 30 And an exhaust gas temperature monitoring device for monitoring the temperature. The exhaust gas temperature monitoring device includes a temperature sensor. When the exhaust gas temperature monitoring apparatus detects a high temperature, the emergency cooling apparatus 87 operates to dissipate the cooling water, and the emergency bypass apparatus 89 operates to discharge the exhaust gas Is prevented. Further, the exhaust gas temperature monitoring apparatus may monitor the temperature of the exhaust gas inside the absorption tower 30. In this case, since the temperature rise in the absorption tower 30 can be suppressed, failure of the absorption tower 30 due to the high temperature can be prevented.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, hypersalt is added to the water such as the cleaning liquid and the cooling water used in the ship desulfurization apparatus 20. In this case, since addition of hypochlorite can prevent bioadhesion, biodegradation can be suppressed. In land desulfurization systems, seawater is used for boiler condensers and the like, and bioaccumulation measures dedicated to desulfurization systems are not implemented.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the exhaust gas introducing portion 34 has a double structure with an outer wall. In this case, the exhaust gas introducing portion 34 and the cooling water nozzle 85b which are first in contact with the exhaust gas in the absorption tower 30 are likely to corrode and the exhaust gas introducing portion 34 and the cooling water nozzle 85b are corroded It is possible to prevent the exhaust gas from leaking to the outside even if it is damaged. Further, since the ship 1 is formed in the steel plate structure 6 as the closed space, the leakage of the exhaust gas is dangerous and this danger can be avoided.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the exhaust gas introduction portion 34 is provided with a leakage detection device for detecting gas leakage or liquid leakage due to corrosion such as lining, for example, (Not shown). In this case, gas leakage or liquid leakage due to corrosion in the exhaust gas inlet 34 can be sensed, and gas leakage or liquid leakage due to corrosion can be caused to flow out of the absorber 30 .

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 further comprises a cooling tower as a pre-process of the absorption tower 30. [ In this case, since the cooling tower is provided as the previous step of the absorption tower 30, impurities such as heavy metals can be removed from the cooling tower. In some embodiments, a water circulation type cooling tower is used. In this case, it is possible to suppress the consumption amount of water required for the navigation of the ship 1. In some embodiments, industrial water for cooling is used instead of seawater in a water circulation cooling tower. In this case, since it is necessary to remove only specific impurities such as heavy metals as compared with the seawater which may contain unspecific impurities, the wastewater treatment can be easily carried out.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

(Desulfurization system)

In some embodiments, the marine desulfurization apparatus 20 further includes a heat exchanger for recovering heat from the exhaust gas and heating the exhaust gas after the desulfurization process. In some embodiments, the heat exchanger includes, for example, a rotary heat exchanger such as a Yungstrom type or a fixed heat exchanger. In some other embodiments, the heat exchanger includes a gas gas heater (GGH). That is, the heat exchanger includes a heat recovery device that recovers heat from the exhaust gas and a reheater that heats the exhaust gas by the heat sent from the heat recovery device.

According to the above arrangement, since the exhaust gas after the desulfurization treatment can be heated by the heat exchanger, it is possible to prevent the exhaust gas from being whitened and to improve the diffusibility of the exhaust gas.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the vessel 1 is provided with a logic gas gas heater of a heat circulation type. In this case, heat can be recovered from the exhaust gas discharged from the main engine 12, the auxiliary engine 14, and the like in the engine room 10 by the logic gas heater. In addition, it is possible to reduce the fuel used in the ship 1 by using the recovered heat to heat the steam used in the ship 1, or to use the heat source such as heating.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 is configured such that the flange integration of the pipe joint portion is reduced. In this case, the efficiency of the joining operation of the piping is improved.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the ship desulfurization apparatus 20 can be welded to the absorption tower 30 and the array recovery apparatus 60, for example, a pipe or other mechanism or part, Is fixed in advance at the time of the pre-fab, which will be described later, which is the entire process of the transport operation by the medium-term and the like. In this case, it is possible to prevent the position of the mechanism and the parts from shifting when conveyed to the ship 1. Further, since the assembling work on the ship 1 can be reduced, the mounting work of the ship desulfurization apparatus 20 to the ship 1 can be performed efficiently.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the piping in the marine desulfurization apparatus 20 is a resin piping, and the end thereof is configured to be connectable by a socket. Further, in some embodiments, the sockets connecting the piping and the piping in the ship desulfurization apparatus 20 are wound with a resin material. In these cases, the corrosion resistance of the pipe or the socket can be improved. In some embodiments, a rubber piping is used so that the piping can be easily aligned with each other at a point where the piping is connected to the concrete piping. In this case, since the piping can be easily aligned with each other, the piping installation work can be efficiently performed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, bubbles are generated in the bottom of the bottom to generate bubbles in the seawater. In this case, the navigation resistance of the ship 1 can be reduced by bubbles. Further, by generating bubbles in the vicinity of the bottom discharge portion, the pH value of the discharge water discharged outboard from the shipborne desulfurization device 20 can be raised. Here, the wastewater discharged outboard from the shipborne desulfurization device 20 is diluted by being mixed with seawater outside the ship, and the pH value is increased to some extent as compared with the wastewater immediately after being discharged from the shipborne desulfurization device 20. [ The pH value can be greatly increased because the decalcification treatment by bubbles is facilitated as compared with the drainage immediately after being discharged from the ship desulfurization device 20.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

(Desulfurization tower assembly method)

For example, a land desulfurization apparatus formed in a power plant is assembled by a block method or a panel method. However, the ship's desulfurization apparatus is not easy to assemble because the aspect ratio of the water supply tower may be different. Further, assembling on a ship on which a desulfurization device for ships is installed is not practical because there is a restriction on the working space and the working time on the ship. Therefore, assembling of the desulfurization apparatus for ships requires three operations, namely, assembly work on the land, suspension work for the ship, and installation work on the ship. In order to reduce the working time on the ship, it is necessary to reduce the installation work on the ship. In addition, since the ship's desulfurization device is suspended on the ship at both heavy machinery, it is required to have such a structure that it can be fixed securely.

In some embodiments, the absorption tower 30 is formed as a prefabricated structure at a nearby factory or an assembly site such as an empty space, and the absorption tower 30 on the above-described prefab is placed in a mid- And is mounted on the ship 1 by hung transportation. In this case, since the absorption tower 30 is formed in a prefabricated shape before being installed on the ship 1, the installation work on the ship 1 can be reduced and the operation time on the ship 1 can be shortened Can be reduced.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is integrally fixed to a wall surface constituting the absorption tower 30 and a pipe disposed around the absorption tower 30. [ In this case, since the wall surface of the absorption tower 30 and the pipe are integrally fixed, the pipe can be easily maintained in the horizontal position. Further, since the wall surface and the pipe are integrally fixed to the absorption tower 30, the installation work is facilitated, and the work time required for the installation work can be shortened.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is configured to be assembled by a block method. That is, the absorption tower 30 is manufactured by forming several layered portions such as a round cut, and each of the layered portions is stacked so that the portions are connected to each other to be completed. In this case, the absorption tower 30 is completed by stacking the respective layered portions so that the portions are connected to each other, so that the working time in the assembly place can be shortened. In addition, the block method takes time and labor in transportation compared to the panel method.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is assembled by a panel method. That is, the absorption tower 30 is formed by a plate member (panel) such as a wall surface or a bottom surface, and is completed by fixing the above-mentioned plate member to a column or a girder. In this case, since the absorber 30 is composed of a plate-like member, a column or a girder, it can be transported to a place where these plate-like members, pillars and girders are assembled, Can be easily carried out. In addition, the panel construction method requires a lot of work in the assembly place as compared with the block construction method.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the marine desulfurization device 20 has at least one major part modularized. In this case, since at least one major part is modularized, the ship desulfurization apparatus 20 can shorten the working time in the assembly place.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is configured to be self-supporting. The water spray pipe (including the longitudinal water spray pipe 38a1, the width water spray pipe 38b1 and the water spray pipe 85a) described above is inserted into the independent absorption tower 30, As shown in FIG. Further, the filling material 35A described above is also inserted into the absorber 30 which is independent and is installed inside the absorber 30. In this case, since the absorption tower 30 is configured to be self-supporting, it is possible to easily insert the water spray pipe or the filling material 35A described above into the absorption tower 30. Such an absorption tower 30 can shorten the working time at the assembly site.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the longitudinal water spray pipes 38a1 are formed at equal intervals in the width direction of the inner space 31, and each of the longitudinal water spray pipes 38a1 is formed in a zigzag shape And are arranged so as to be different in height position from each other with the adjacent longitudinal spray pipes 38a1.

In some other embodiments, the aforementioned width direction spray pipes 38b1 are formed at equal intervals in the longitudinal direction of the inner space 31, and each of the plurality of width direction spray pipes 38b1 is formed in a zigzag And arranged so as to be different in height position from each other in the adjacent width direction spray pipe 38b1.

In some other embodiments, the aforementioned water spray pipes 85a are formed at equal intervals in the exhaust gas introduction portion 34, and each of the plurality of spray pipes 85a is arranged in a zigzag pattern, And are arranged so that their height positions are different from each other with the adjacent water spray pipe 85a.

In these cases, since the cleaning liquid and the cooling water can be supplied equally, the local deflection of the scattering ability can be reduced.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the spray nozzle 38a2 is integrated with the spray pipe 38a1 in the longitudinal direction without using bolts or the like.

In some other embodiments, the water spray nozzle 38b2 is integrated with the spray water pipe 38b1 in the width direction without using bolts or the like.

In some other embodiments, the cooling water nozzle 85b is integrated with the spray pipe 85a without using bolts or the like.

In these cases, by making the water spray nozzle integral with the water spray pipe, high strength is achieved. In addition, since there is no fear of clogging of the desalination of the seawater, it is possible to make the spray nozzle into an integral structure with the spray pipe.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

(Shipboard installation method)

For example, a land desulfurization apparatus formed in a power plant is assembled by a block method or a panel method at an installation site. However, the ship's desulfurization apparatus is not easy to assemble because the aspect ratio of the water supply tower may be different. In addition, assembling the ship's desulfurization device on a ship on which it is installed is not practical because there is a restriction on the working space on the ship and the operation time. For this reason, after assembling the desulfurization device on the land, it is necessary to hang the vessel on the ship in the middle stage. In addition, the desulfurization device for ships requires strength that can withstand the operation of hanging the ship on both heavy machinery, reinforcement at the time of hanging, and the like. In addition, there is a concern that deformation of the water supply tower or peeling of the lining inside the water supply tower may occur during operation of hanging the vessel with the heavy desiccator.

In some embodiments, the absorption tower 30 is fed in an integrated state in which internal components are fixed in advance. Therefore, the absorption tower 30 can be fixed to the ship 1 in the shipyard while maintaining the above-described integral state. Further, since the absorption tower 30 can be exchanged while maintaining the above-described integral state at the time of maintenance, it is possible to shorten the time required for the maintenance work.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

21 is a view for explaining the fixing of the absorption tower and the steel plate structure of the marine desulfurization apparatus according to the embodiment of the present invention. 22 is a view for explaining the installation of an absorption tower and a steel plate structure of a ship desulfurization apparatus on a ship in accordance with an embodiment of the present invention. In some embodiments, the absorption tower 30 and the exhaust gas introduction device 40 are assembled onshore, and as shown in Fig. 21, the absorption tower 30 and the exhaust gas introduction device 40 The absorption tower 30 and the exhaust gas introduction device 40 are firmly fixed to the steel plate structure 6. [ As shown in Fig. 22, the absorption tower 30 and the exhaust gas introduction device 40 are mounted on the ship 1 with the steel plate structure 6, And is installed in the ship 1. The steel plate structure 6 may cover only the absorption tower 30. Further, the steel plate structure 6 may be fixed with the apparatus for recovering exhaust gas of the exhaust gas recycling apparatus 60, the heat exchanger described above, piping, wiring, and the like.

The absorption tower 30 and the exhaust gas introduction device 40 are suspended along the steel plate structure 6 together with the steel plate structure 6 so that the steel plate structure 6 can be supported by the absorption tower 30 And the exhaust gas introduction device 40 can be prevented from being deformed and the lining in the absorption tower 30 can be prevented from being peeled off.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

21, the steel plate structure 6 is disposed in the steel plate structure 6 and fixed to the absorption tower 30 and the exhaust gas introduction device 40 and the steel plate structure 6 And a fixing member 91 which is used in the fixing device. As shown in Fig. 21, the fixing member 91 has a rectangular-shaped longitudinal direction fixing member (not shown) extending in parallel to each of a pair of long side wall faces located at both ends in the width direction of the steel plate structure 6 And a widthwise direction fixing member 91B having a rectangular parallelepiped extending parallel to each of a pair of short side walls located on both sides in the longitudinal direction of the steel plate structure 6. [ Each of the longitudinal direction fixing member 91A and the width direction fixing member 91B is fixed to the steel plate structure 6 at both ends and is fixed to the absorption tower 30 or the exhaust gas introduction device 40 . Any of the longitudinal direction fixing member 91A and the width direction fixing member 91B may be fixed to the piping connected to the absorption tower 30 or the exhaust gas introduction device 40. [ In this case, the steel plate structure 6 can be firmly fixed to the absorption tower 30 and the exhaust gas introduction device 40.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is assembled and installed in the vessel 1 by the following method. That is, the absorber 30 is assembled on the land by a block method or a panel method. The absorption tower 30 is configured to be self-supporting. After the absorption tower 30 is assembled, the above-described sprinkling pipe and the above-mentioned accessories such as the above-mentioned filling material 35A are installed in the absorption tower 30. [ After the accessory is installed, the above-described steel plate structure 6 is covered, and the absorption tower 30 and the steel plate structure 6 are firmly fixed. A pipe connected to the absorption tower (30) or the like is provided in the steel plate structure (6). When the steel plate structure 6 is installed in the steel plate structure 6, the steel plate structure 6 is moved in a line of the ship 1 and the steel plate structure 6 is hung on the ship 1 and mounted on the ship 1.

According to the above configuration, on the land, the absorption tower 30 is assembled and the accessories in the absorption tower 30 and the pipe in the steel plate structure 6 are mounted on the absorption tower 30. Since an accessory and a pipe are mounted before covering the steel plate structure 6, it is possible to secure a wide working area. It is advantageous in the work of inserting the spray pipe from the outside of the absorption tower 30, for example. In addition, since the absorption tower 30 and the steel plate structure 6 are firmly fixed on the land, the work to be performed on the ship can be reduced. Since the absorber 30 is fixed to the steel plate structure 6 together with the steel plate structure 6 together with the steel plate structure 6 so that the steel plate structure 6 can be easily lifted, Can be utilized as a reinforcing material, and the absorption tower 30 can be prevented from being deformed. Further, it is possible to prevent the lining from peeling off the inside of the absorber 30 or the pipe in the steel plate structure 6 from escaping.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is assembled and installed in the vessel 1 by the following method. That is, the steel plate structure 6 is first installed at the assembly site on the land, and the absorption tower 30 is assembled in the steel plate structure 6. Also, in the steel plate structure 6, a maintenance stage for snow and snow is formed.

According to the above configuration, since the absorption tower 30 is assembled in the steel plate structure 6 on the land, the situation that the absorption tower 30 can not be housed in the steel plate structure 6 can be avoided. Also, by fixing the absorption tower 30 to the steel plate structure 6, it is possible to mount the accessory in the absorption tower 30 to the absorption tower 30 even in a structure in which the absorption tower 30 can not stand alone.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the absorption tower 30 is assembled and installed in the vessel 1 by the following method. That is, the absorption tower 30 and the steel plate structure 6 are integrally formed, and the absorption tower 30 and the steel plate structure 6 are manufactured by several layered portions such as a round cut, So that they can be completed by stacking and connecting the parts to each other.

According to the above construction, since the absorption tower 30 and the steel plate structure 6 are integrally assembled by the block method on the land, the working time in the assembly place can be shortened. In addition, even in the structure in which the absorption tower 30 can not stand alone, the attachment in the absorption tower 30 can be mounted on the absorption tower 30. Since the absorption tower 30 and the steel plate structure 6 are integrally fixed on land, the work to be performed on the ship can be reduced.

The invention according to the present embodiment is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

(Control, operation method, seawater adjustment)

There is a possibility that the operation condition of the vessel 1 changes depending on the weather condition, the sea area to be navigated, and the like. Further, it is preferable that the ship 1 does not consume unnecessary power during navigation.

20 is a view for explaining a cleaning liquid supply line and a bypass line in a marine desulfurization apparatus according to an embodiment of the present invention. 20, in some embodiments, the above-described ship desulfurization apparatus 20 includes the absorption tower 30 including the above-described absorption tower main body portion 32, the above-described dispersion apparatus 38 and a cleaning liquid supply device 96 capable of spraying the cleaning liquid to the spray device 38. [

20, the cleaning liquid supply device 96 includes a cleaning liquid supply line 97A for supplying the cleaning liquid to the spray device 38 and a cleaning liquid supply line 97A for supplying the cleaning liquid from the cleaning liquid supply line 97A to the branch point TP2 A bypass line 97B for supplying a cleaning liquid to the above described storage space 31a in which the cleaning liquid dispersed in the exhaust gas guided to the internal space 31 is stored, And a control valve 98 formed in the bypass line 97B and capable of controlling the supply amount of the cleaning liquid flowing through the bypass line 98B.

In the illustrated embodiment, the cleaning liquid supply device 96 comprises the above-described sea water supply device 50 for supplying seawater to the spray device 38 as a cleaning liquid. The cleaning liquid supply line 97A is composed of a seawater supply line 58 and the bypass line 97B is composed of a line 58c. The branch pipe 58c is connected to the branch pipe TP2 formed in the sea water supply pipe 58 connecting the sea water supply pump 54a and the spray pipe 38c1 of the spray device 38, And the other end is connected to the retention space 31a (the internal space 31) of the absorption tower 30. Therefore, a part of the cleaning liquid (seawater) flowing through the seawater supply pipe 58 flows into the storage space 31a through the branch pipe 58c. In another embodiment, the cleaning liquid supply device 96 may supply water other than seawater to the spray device 38 as a cleaning liquid.

For example, since the required desulfurization performance differs between the emission control area (ECA sea area) and the general sea area, the required amount of the cleaning liquid supplied to the dispersing device 38 is also different. If the amount of the cleaning liquid supplied to the spray device 38 is smaller than the required amount, there is a possibility that the necessary desulfurizing effect may not be obtained. If the amount of the cleaning liquid supplied to the dispersing device 38 is larger than the required amount, the pressure loss of the exhaust gas may increase. A control valve is formed in a cleaning liquid supply line 97A for supplying a cleaning liquid to the spray device 38 as a measure for appropriately adjusting the amount of the cleaning liquid to be supplied to the spray device 38, It is conceivable to control the supply amount of the cleaning liquid flowing through the supply line 97A. However, since the pipe constituting the cleaning liquid supply line 97A has a large diameter, there is a possibility that the control valve formed in the cleaning liquid supply line 97A becomes larger and larger. It is also difficult to control the supply amount of the cleaning liquid in the cleaning liquid supply line 97A having a large pipe diameter.

The cleaning liquid supply device 96 controls the supply amount of the cleaning liquid flowing through the bypass line 97B by the control valve 98 formed in the bypass line 97B to supply the cleaning liquid to the cleaning liquid supply line 97A can be indirectly controlled. At this time, since the pipe (branch pipe 58c) constituting the bypass line 97B can be made smaller in diameter than the pipe (sea water supply pipe 58) constituting the cleaning liquid supply line 97A, The control valve 98 formed in the line 97B is smaller and lighter than the control valve formed in the cleaning liquid supply line 97A. In addition, the bypass line 97B is easier to control the supply amount of the cleaning liquid than the cleaning liquid supply line 97A.

In some embodiments, the flow meter 99 (flow rate detecting device) is formed on the downstream side (on the side of the dispersing device 38) of the cleaning liquid supply line 97A on the side of the branch point TP2 where the bypass line 97B branches do. The flow meter 99 is configured to be capable of measuring the flow rate (volume flow rate) of the cleaning liquid flowing downstream of the branch point TP2 of the cleaning liquid supply line 97A. The control valve 98 described above is configured to adjust the opening degree so that the flow rate detected by the flowmeter 99 falls within a predetermined range. In this case, since a desired amount of the cleaning liquid is supplied to the spray device 38, a necessary desulfurization effect can be obtained and the increase in the pressure loss of the exhaust gas can be suppressed. In another embodiment, the flow rate may be indirectly detected by multiplying the cross-sectional area by the flow velocity detected by the flowmeter. In short, the flow rate detection device described above includes an anemometer. The branch point TP2 may be located on the upstream side of the branch point TP1 or on the downstream side of the branch point TP1.

The invention relating to the above-mentioned several embodiments is also applicable to a quadrangular absorption tower whose aspect ratio is out of the range of 1: 1.1 or more and 1: 6.0 or less.

In some embodiments, the vessel 1 further comprises a control device for controlling an apparatus such as the absorption tower 30 of the marine desulfurization device 20 or a device. The control device is an electronic control unit for controlling the devices and devices in the ship 1. For example, the control device may be configured as a microcomputer including a central processing unit (CPU) including a processor, a random access memory (RAM), a read only memory (ROM), and an I / O interface.

In some embodiments, the control device described above controls the number of motions of the spray nozzle or the number of pump motors. Further, the spray nozzle may be selected to be a movable object according to the position of the spray nozzle described above. In this case, the power consumption of the ship 1 can be suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the above-described control device controls the supply amount of the cleaning liquid or the cooling water to the above-described spray nozzle by controlling the opening degree of the pump with a movable blade, for example, or by controlling the number of pump operations Conduct. In this case, the power consumption of the ship 1 can be suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the control device described above controls, based on the SO2 concentration of the exhaust gas discharged from the absorption tower 30, the number of operations of the water spraying nozzles described above, the number of pump operations, At least one of the control for adjusting the supply amount to the spray nozzle by the opening adjustment is performed. In this case, since the control according to the treatment capacity of the exhaust gas by the absorption tower 30 can be performed, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the control device described above controls the operation of the water spraying nozzle described above according to the characteristics such as the pH value and the alkaline degree of the seawater introduced into the inside of the ship body 2 by the seawater supply pump 54a And the control for adjusting the supply amount to the spray nozzle by the above-described opening adjustment is carried out. In this case, since the control according to the constellation of the seawater can be performed, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the control device described above controls the SO2 concentration of the exhaust gas before the desulfurization treatment by the absorption tower 30, the S component in the fuel, the desulfurization by the absorption tower 30, The operation load of the absorption tower 30 can be grasped by solely or in combination with the SO2 concentration of the exhaust gas after the treatment and the control of the number of operations of the sprinkling nozzle described above and the above- At least one of the control for adjusting the supply amount to the spray nozzle by the spray nozzle is performed. In this case, since the control according to the operation load of the absorption tower 30 can be performed, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, a pressure gauge for monitoring the closure of the spray nozzle and the operation status of the seawater supply pump 54a is mounted on the header portion of the spray nozzle described above. In this case, since the clogging of the spray nozzle and the operation state of the seawater supply pump 54a can be monitored by the pressure gauge, the above-described control apparatus can efficiently control the ship desulfurization apparatus 20.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the drain pipe 56 or the sea water discharge pipe 59 is equipped with an analyzer for always observing properties such as pH value and desulfurization rate of the desulfurized drainage (scrubber drainage, drainage after dilution), for example. In this case, since the characteristics of the desulfurization drainage can always be observed by the analyzer, the above-described control apparatus can efficiently control the desulfurization apparatus 20 for marine use.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the above-described control device controls the pH value of the desulfurized waste water even if the number of the absorption towers 30 for cleaning the exhaust gas, the load of each absorption tower 30, and the S component of the fuel oil fluctuates. (The seawater supply pump 54a and the drain dilution pump 52a) of the minimum number required because the desulfurization rate and the desulfurization rate satisfy predetermined conditions. In this case, since the required minimum number of seawater pumps are operated, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the following control method of the marine desulfurization apparatus 20 is implemented by the control apparatus described above. That is, the required amount of seawater for each combination of the four items of the S component of the fuel oil, the engine load, the seawater concentration by region, and the draft varying by the dropping weight is made into a database and the above- With the feedforward control, a control method of supplying an appropriate amount of seawater to the device or apparatus in the vessel 1 such as the absorption tower 30 is carried out. In this case, since an appropriate amount of seawater is supplied by the feedforward control, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the following control method of the marine desulfurization apparatus 20 is implemented by the control apparatus described above. That is, the pH value and the sulfurous acid concentration in the drainage portion of the ship 1, or the SO2 concentration of the exhaust gas discharged from the absorption tower 30 is detected, A control method of supplying an appropriate amount of seawater to the device or apparatus in the vessel 1 such as the absorption tower 30 is performed by the feedback control based on the control method. In this case, since an appropriate amount of seawater is supplied by the feedback control, the power consumption of the ship 1 can be effectively suppressed.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, as an analytical method for monitoring the sulfuric acid concentration in the desulfurization water, a certain amount of acid is continuously added to the separable flask while continuously supplying a part of the desulfurization water to a separable flask equipped with a stirrer, A method of measuring the gas concentration of sulfur dioxide (SO2) moving from the gas to the gas phase with an infrared SO2 system (infrared gas gas analyzer) is used. In this case, the concentration of the sulfurous acid in the desulfurized waste water can be monitored, and the control device described above can control the spraying nozzle or the like described above according to the concentration of the sulfurous acid in the desulfurized waste water.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the above-described control device performs control of the amount of seawater by performing at least one of pump number logarithmic control, rotor opening degree control, and VVVF inverter rotational speed control. In this case, the amount of seawater to be supplied to the absorption tower 30 and the like can be set to an appropriate amount.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

(Maintenance method, structure)

Since the marine desulfurization apparatus 20 collects the exhaust gas introduction pipes of the whole engine including the main engine 12 and the auxiliary engine 14 on the ship 1 and puts them into the absorption tower 30, In at least one of the exhaust gas dampers, a high-temperature exhaust gas flows to the primary side (the upstream side of the exhaust gas damper). Therefore, if the exhaust gas leaks from the exhaust gas damper at the time of inspection of the absorption tower 30, there is a danger that the operator engaged in the inspection work may be dangerous. At the time of maintenance, at least one of the main engine 12 and the auxiliary engine 14 needs to be operated, and the main engine 12 and the auxiliary engine 14 are both stopped There is a problem that the exhaust gas can not be stopped from being exhausted.

In some embodiments, in the marine desulfurization apparatus 20, two exhaust gas dampers formed at at least one point are arranged in series, and compressed air is injected between the exhaust gas dampers. In this case, two exhaust gas dampers are arranged in series, and compressed air is injected between the exhaust gas dampers to seal the air. Therefore, it is possible to reliably prevent the exhaust gas from flowing to the other side through the exhaust gas damper have.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 includes at least one exhaust gas damper switchable abolition flange. In this case, since the exhaust gas damper includes the switching type abutment flange, it is possible to reliably prevent the exhaust gas from flowing to the other side through the space between the exhaust gas dampers.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, at least one exhaust gas damper of the marine desulfurization apparatus 20 includes a guillotine damper (gate damper). Here, it takes a long time to open the guillotine damper, but it is a moment to abolish it. Further, each of the plurality of exhaust gas dampers may include a guillotine damper, or may be a guillotine damper, for example, a vent duct may be abolished. In this case, since the exhaust gas damper includes the guillotine damper, it is possible to reliably prevent the exhaust gas from flowing to the other side through the space between the exhaust gas dampers.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 further includes a bypass flow path for flowing exhaust gas at the time of maintenance so that the exhaust gas does not pass through the exhaust gas damper at the time of maintenance. In this case, since the exhaust gas flows through the bypass flow path, not the exhaust gas damper, during maintenance, it is possible to prevent the operator who is engaged in the inspection work from becoming dangerous.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In some embodiments, the marine desulfurization apparatus 20 includes at least one exhaust gas damper including a guillotine damper. At the time of maintenance, at least one of the main engine 12 and the auxiliary engine 14 is operated and the guillotine damper corresponding to the main engine 12 and the subsidiary engine 14 which are to be operated is abolished. In this case, since the guillotine dampers corresponding to the main engine 12 and the auxiliary engine 14 to be operated are abolished, the worker engaged in the inspection work can be prevented from becoming dangerous.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

(Exhaust gas flow path connection to the desulfurization tower)

Since the absorption tower 30 occupies a certain range within the steel plate structure 6, there is a possibility that the treatment of the pipe is difficult or the pipe can not be treated in the steel plate structure 6. [

3 and 4, the exhaust gas introduction pipes 44a to 44d for ancillary equipment for guiding the exhaust gas discharged from the auxiliary organs 14 to the absorption tower main body portion 32 are provided in the above- Is connected to the exhaust gas introducing pipe 42. The exhaust gas- The exhaust gas introduction pipes 44c and 44d for auxiliary devices are connected to the side wall 34c (see FIG. 23 described later) on the side of the other end portion 34b of the exhaust gas introduction portion 34 , And directs the exhaust gas to the exhaust gas introducing portion (34). The auxiliary gas exhaust gas introduction pipes 44a and 44b may be connected to the side wall 34c on the side of the other end 34b of the exhaust gas inlet 34. [ In this case, since the degrees of freedom of the connection positions of the exhaust gas introduction pipes 44a to 44d for auxiliary devices are improved, the auxiliary gas exhaust gas introduction pipes 44a to 44d can be connected to the position where the processing operation is easy. In addition, it is possible to suppress the length dimension of the exhaust gas introduction pipes 44a to 44d for ancillary equipment from becoming large.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

23 is a view for explaining connection between an absorption tower and an exhaust gas introduction pipe of a marine desulfurization apparatus according to an embodiment of the present invention. 23, the auxiliary gas exhaust gas introduction pipes 44c, 44d described above are arranged on the side opposite to the side to which the exhaust gas introduction portion 34 of the absorption tower main body portion 32 is connected So that the exhaust gas is directly introduced into the inner space 31 of the absorption tower body 32. The auxiliary gas exhaust gas introduction pipes 44a and 44b may be connected to the side wall 32e and the auxiliary gas exhaust gas introduction pipes 44a to 44d may be connected to the absorption tower main body 32, Or may be connected to the side wall 32f adjacent to the side wall on the side to which the exhaust gas inlet 34 is connected. In this case, since the degrees of freedom of the connection positions of the exhaust gas introduction pipes 44a to 44d for auxiliary devices are improved, the auxiliary gas exhaust gas introduction pipes 44a to 44d can be connected to the position where the processing operation is easy. In addition, it is possible to suppress the length dimension of the exhaust gas introduction pipes 44a to 44d for ancillary equipment from becoming large.

The invention according to the present embodiment is also applicable to a quasi-absorber or annular absorber having an aspect ratio of more than 1: 1.1 and not more than 1: 6.0.

In the above-described embodiments, a configuration in which one exhaust gas inlet port 33 is formed has been described. However, a plurality of exhaust gas inlet ports 33 may be formed. 24A and 24B are views for explaining the connection between the absorption tower and the exhaust gas introduction pipe of the marine desulfurization apparatus according to the embodiment of the present invention. FIG. 24A is a schematic top view, Is a schematic front view. The exhaust gas inlet 33 may be formed on both sides of the absorption tower 30 as shown in Figs. 24 (a) and 24 (b). In this case, when the absorber 30 is filled with the width of the steel plate structure 6 in the absorber 30 having a square aspect ratio of 1: 1.1 or less, the side of the absorber 30 is introduced with the exhaust gas The tube does not need to be bypassed and the processing of the exhaust gas inlet for the generator is not required.

Fig. 25 and Fig. 26 show a plan view integral type desulfurization apparatus 100 according to an embodiment. Fig. 25 shows a state in which the hull integral type desulfurization apparatus 100 is suspended by a crane 108 when it is inserted into the hull structure of the ship 1, and Fig. 26 shows a state State.

As shown in Figs. 25 and 26, the integrated unit type desulfurization apparatus 100 includes a casing 102 forming a part of a hull structure of a ship, and an absorption tower 104 supported by a casing 102 . The absorption tower 104 desulfurizes the exhaust gas discharged from the exhaust gas generator such as the main engine 12 or the auxiliary engine 14 mounted on the ship.

Conventional marine desulfurization equipment is one of the machineries mounted on a ship, and is independent from the hull structure.

On the other hand, prior to mounting of the vessel on the vessel, the vessel-integrated desulfurization apparatus 100 is in a state in which the absorption tower 104 is already supported in the casing 102 forming part of the hull structure. In this hull integral type desulfurization apparatus 100, the casing 102 is connected to another hull structure of the ship on a ship.

According to the above configuration, since the casing 102 supporting the absorption tower 104 forms a part of the hull structure, excessive clearance around the absorption tower 104 and vibration and vibration stop of the absorption tower 104 are prevented A reinforcing member for the purpose becomes unnecessary. Therefore, the mounting structure of the absorption tower 104 can be made compact.

25 and 26, the absorption tower 104 is connected by welding to a casing 102 surrounding the outer periphery of the absorption tower 104, and is integrally formed with the casing 102 .

According to this construction, since the absorption tower 104 is connected to the casing 102 surrounding the outer periphery of the absorption tower 104 by welding, the force applied from the absorption tower 104 to the casing 102 is transmitted to the casing 102, 0.0 > 102 < / RTI > Thereby, since the load of the absorption tower 104, which is originally concentrated at the base of the absorption tower 104, is dispersed in the casing 102, the support structure of the absorption tower 104 can be made compact.

In one embodiment, as shown in Fig. 26, when the hull integral type desulfurization apparatus 100 is mounted on a ship, it is disposed on the upper portion of the engine casing 106. Fig. Since the absorber 104 is supported from the periphery by the casing 102 and the supporting portion for supporting the absorber 104 from below is not required, the absorber 104 and the absorber 104 A clearance s1 is formed between the engine casings 106. Fig.

According to this embodiment, since the support portion for supporting the absorption tower 104 from below is not required and the clearance s1 can be formed, the liquid pipe (the sea water supply pipe) through which the absorption liquid accommodated in the engine casing 106 flows, A seawater discharge pipe), and an exhaust gas pipe for introducing the exhaust gas discharged from the exhaust gas generating device of the main engine or the like into the absorption tower 104 can be disposed in the gap s1.

In one embodiment, the casing 102 is made of a common linear material such as steel, and the exhaust gas contacting portion of the absorption tower 104 is made of corrosion-resistant stainless steel, an alloy, or the like.

In one embodiment, the present invention relates to a monolithic desulfurization device structure, and a vibration analysis is carried out to obtain a design structure such that the resonance does not resonate with the cycle or the natural frequency of the propeller.

In one embodiment, in order to avoid resonance with the natural frequencies of the main engine 12 or the propelling propeller (not shown), an exhaust installation space is provided in the upper region R ₁ of the casing 102. When the adjacent region R ₂ of the installation space of the absorption tower 104 is empty, an accessory device and a pipe flow of the absorption tower 104 can be formed in the region R ₂ .

In one embodiment, the casing 102 is formed so that the length along the width direction of the ship (the direction of arrow a in FIG. 25) is larger than the length along the forward and backward direction of the ship.

According to this embodiment, since the longitudinal direction of the casing 102 is arranged along the width direction of the ship 1, therefore, the absorption tower 104 supported by the casing 102 has a longitudinal direction that is equal to the width The bending stress acting on the absorption tower 104 at the time of horizontal shaking (rolling) of the ship can be made smaller than that of the absorption tower having the longitudinal direction along the forward-aft direction of the ship. Therefore, an absorption tower having high resistance to rolling can be obtained.

In one embodiment, as shown in Figs. 25 and 26, the casing 102 is formed such that the longitudinal direction thereof is arranged along the width direction of the ship, and the axial direction is arranged along the vertical direction . The absorbing tower 104 is supported by the casing 102 surrounding the outer periphery of the absorption tower 104 so that the force applied to the casing 102 from the absorption tower 104 is transmitted to the periphery of the casing 102 . Therefore, since the load of the absorption tower 104, which is originally concentrated at the base of the absorption tower 104, is dispersed in the casing 102, the supporting structure of the absorption tower 104 can be made compact.

In Figs. 25 and 26, the front wall of the casing 102 is removed and displayed for visualization of the casing 102. Fig.

As shown in Figs. 25 and 26, the ship 1 according to one embodiment is provided with a hull integral type desulfurization device 100, and a part of the hull structure is formed by the integral hull type desulfurization device 100. [

According to this configuration, since the hull-type integrated desulfurization apparatus 100 is formed as a part of the hull structure, extra clearance around the absorption tower 104 and a reinforcing member 104 for preventing vibration and vibration of the absorption tower 104 . Therefore, the mounting structure of the absorption tower 104 can be made compact.

25 and 26, the hull structure includes an engine casing 106 positioned below the casing 102 of the integral unit type desulfurization apparatus 100, The lower end of the outer wall 110 is connected to the engine casing 106 by welding.

The absorption tower 104 is supported by the casing 102 forming part of the hull structure of the ship 1 and therefore the casing 102 has the same structure as that of the upper portion of the engine casing 106 As shown in FIG. Since the distance between the casing 102 in which the absorption tower 104 is supported and the engine casing 106 is close to each other, the exhaust gas discharged from the main engine accommodated in the engine casing 106 is introduced into the absorption tower 104 The length of the exhaust gas pipe can be shortened.

In one embodiment, as shown in Figs. 25 and 26, a rib 112 formed in the vertical direction on the inner surface of the outer wall 110 of the casing 102, or a rib 112 formed on the outer wall 110 opposed to each other The positions of the first reinforcing members formed by the stiffener 114 (see Fig. 27) and the second reinforcing members formed by the ribs 118 formed on the engine casing 106 or the stiffeners 120 coincide with each other. That is, the rib 112 or the stiffener 114 is placed on the rib 118 or the stiffener 120 and is supported by the rib 118 or the stiffener 120.

In one embodiment, as shown in Fig. 27, the stiffener 114 is sandwiched between the outer walls 110 of the casing 102 facing each other. The stiffener 120 is interposed between the outer wall 110 and the inside of the upper region, for example, of the mutually facing outer walls 116 of the engine casing 106. The ribs 118 formed in the engine casing 106 are formed with a plurality of ribs 118 in parallel.

According to this embodiment, since the positions of the first reinforcing member and the second reinforcing member coincide with each other in the vertical direction, the support strength of the engine casing 106 with respect to the casing 102 supporting the absorption tower 104 And the casing 102 can be stably supported.

25, by slanting the specific ribs 112a and 112b (see FIG. 25) of the ribs 112 constituting the outer wall 110 at the lowermost part of the casing 102, as shown in FIG. 25, The position of the rib 118 or the stiffener 120 constituting the second reinforcing member of the engine casing 106 is matched. Thereby, the strength of the support of the casing 102 by the engine casing 106 can be increased.

In one embodiment, the stiffener 114 shown in Fig. 27 may be inclined so as to match the position of the rib 118 or the stiffener 120 constituting the second reinforcing member. Thereby, the strength of the support of the casing 102 by the engine casing 106 can be increased.

28, the absorber 104 is connected to the main engine 12, the subsidiary organs 14, and the like in a state where the vessel-integrated desulfurizer 100 is mounted on the vessel 1 Is located above the exhaust gas piping (122) of the exhaust gas generating apparatus of Fig.

According to this embodiment, since the absorption tower 104 is located above the exhaust gas piping 122 of the exhaust gas generating apparatus, the exhaust gas that introduces the exhaust gas discharged from the exhaust gas generating apparatus into the absorption tower 104 The length of the gas piping 122 can be shortened.

In one embodiment, the piping 124 is supported by the casing 102 as shown in Fig. The piping 124 is connected to the gas piping connecting the exhaust gas piping 122 of the exhaust gas generator and the exhaust gas inlet of the absorption tower 104 or the gas piping connecting the exhaust gas inlet of the absorption tower 104 to the liquid pipe At least one of them.

According to this embodiment, by supporting the piping flow with the casing 102 forming a part of the hull structure of the ship 1, the supporting structure of the accessories of the absorption tower 104 including these piping can be made compact . Further, even if the positional relationship between the absorption tower 104 and the main engine is changed by the ship, only the length of the piping can be changed, so that it is possible to cope with modularization and cost reduction.

30, the above-mentioned hull structure of the ship 1 is constituted by a casing 102 and a casing 102 which is adjacent to the casing 102 in the width direction of the ship 1 And another hull structure 103 welded to the casing 102.

According to this embodiment, since the hull structure arranged in the width direction of the ship 1 is divided into the hull structure 103 different from the casing 102 supporting the absorption tower 104, You can return it separately on board. This makes it possible to avoid the situation where the weight of the hull integral type desulfurization apparatus 100 becomes excessively large and the crane capability is insufficient.

In some embodiments, as shown in Figs. 31A and 31B, a rectangular space s2 is formed between the frames 126 constituting the casing 102 as viewed in plan view. 31A shows an example in which the absorption tower 104 (104a) having a rectangular outer shape in a plan view is disposed in a rectangular space s2. Fig. 31B shows an example in which a square s2 And an absorption tower 104 (104b) having an annular shape in plan view. Fig. 31 (C) is an example in which the outer periphery of the absorption tower 104 (104b) shown in Fig. 31 (B) is fixed to the frame 126 at a plurality of welding points p. As described above, the absorber 104 (104a, 104b) can be installed in the casing 102 of the integrated unit type desulfurization apparatus 100.

Fig. 32 is a process chart showing a mounting method of a whitetail integral type desulfurization apparatus 100 according to one embodiment on a ship. As shown in Fig. 32, first, a vessel-integrated desulfurization apparatus 100 having a casing 102 and an absorption tower 104 forming a part of a ship's hull structure is formed on the land (a desulfurization apparatus forming step S10). Next, the hull integral type desulfurization apparatus 100 formed in the desulfurization apparatus formation step S10 is mounted on the ship (ship installation step S12). In the desulfurization apparatus formation step S10, the casing 102 of the integrated type desulfurization apparatus 100 is joined with the hull structure other than the casing 102 of the ship 1.

According to the above method, in the desulfurization apparatus forming step S10, the vessel-integrated desulfurization apparatus 100 is formed in advance at a factory on the ground, and the vessel is mounted with the vessel-integrated desulfurization apparatus 100 after the vessel is settled. As a result, the construction period for mounting the absorption tower on the ship can be shortened. Further, the absorber 104 and the casing 102 can be manufactured separately in parallel before they are integrated, thereby shortening the construction period of the integral unit type desulfurization apparatus 100.

In one embodiment, the absorber 104, the casing 102, and the absorber 104 are assembled together in the order of the lower section to the upper section of the integrated monolithic absorber 100 in step S10 .

According to this embodiment, the assembling is facilitated by assembling from the lower section to the upper section of the apparatus 10 in order, and the absorption tower 104 and the casing 102 are assembled in parallel at the same time, Can be shortened.

In one embodiment, as shown in Fig. 33, in the above-described forming step, the above-mentioned integral integral type desulfurization apparatus forms an aggregate of a plurality of divided sections 100a, 100b and 100c divided in the vertical direction. In the ship mounting step S12, these divided sections 100a to 100c are laminated on the ship 1 in order to mount the vessel-integrated desulfurizing apparatus 100 on the ship.

According to this embodiment, by forming the aggregate of the plurality of divided sections 100a to 100c in which the horizontal integrated type desulfurization apparatus 100 is divided in the vertical direction, in the ship mounting step S12, As shown in FIG. As a result, it is possible to avoid a situation in which the conveying ability of the crane 108 is insufficient.

In this embodiment, in the divided sections 100a to 100c, the divided sessions 104a, 104b and 104c of the absorption column 104 are assembled, respectively. Each of the divided sessions 104a to 104c is integrally assembled to the absorption tower 104 when the divided sections 100a to 100c are assembled in a ship.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the scope of the present invention. The marine desulfurization apparatus of the present invention can be preferably used for super large container lines (ULCS) having a container loading capacity of, for example, 10,000 TEU or more, but can be used as a large- Can also be used for container ships and container carriers other than tankers and bulk carriers, as well as general merchant ships such as cargo ships or passenger ships.

The present invention also includes forms appropriately combining the above-described embodiments. For example, the absorption tower 30 may be configured to include an internal space determination device 80 and an exhaust gas cooling device 85. Among the inventions relating to the above-mentioned several embodiments, there are inventions which can be applied to a quadrangular absorber whose aspect ratio is not less than 1: 1.1 and not more than 1: 6.0, There are inventions that can be applied. These inventions may be applied to a square type absorption tower or an annular absorption tower whose aspect ratio is more than 1: 1.1 and not more than 1: 6.0.

Industrial availability

According to one embodiment, it is possible to realize a ship desulfurization apparatus having an excellent arrangement property when it is disposed on a ship such as a super large ship.

1 vessel
2 Ship Body
3 upper deck
4 Residents
6 steel structure
8, 8A, 8B transverse bulkhead
9 containers
10 engine room
12 state agencies
14 Auxiliary Agencies
20 Desulfurization equipment for ships
30 Absorption tower
31 interior space
31a retention space
31b Lower inner space
31c upper side inner space
31d The outlet side inner space
32 The absorption tower body portion
32a, 32b Long wall
32c, 32d The short side walls
33 Exhaust gas inlet
34 Exhaust gas inlet
34A inclined portion
34B vertical portion
34a,
34b the other end
35 filling layer
35A packing
36 Exhaust gas outlet
37 Mist Eliminator
38, 38A, 38B Spatter device
38a1 Longitudinal spray pipe
38a2 sprinkler nozzle
38b1 width direction spray pipe
38b2 sprinkler nozzle
39a < / RTI >
39b side end portion
39c,
40 Exhaust gas introduction device
42 Exhaust gas introduction pipe
43 Exhaust gas discharge pipe
44a to 44d Exhaust gas introduction pipe for ancillary equipment
45 Exhaust gas inlet pipe
46 Exhaust gas chimney
48a to 48d Exhaust gas exhaust for auxiliary equipment
50 Seawater supply
52 1st seawater intake box
52a multiple dilution pump
54 2nd seawater intake box
54a Seawater supply pump
56 Seawater introduction hall
58 Seawater supply pipe
59 Seawater discharge pipe
60 Array recovery device
70 transverse member
70A girder member
70B board member
80 Internal space verification device
80A poetry window
81 pH adjusting agent
81A Alkali agent on lock
82 partition
83 Ceiling Government
84 Conventional floor
85 Exhaust gas cooling system
86 Emergency tanks
87 Emergency Cooling System
88 Emergency cooling water pipe
89 Emergency bypass device
90 emergency shut-off valve
91 fixing member
92 wall reinforcement member
93 partition wall
94 Coolant control valve
95 pressure gauge
96 Cleaning fluid supply device
97A Cleaning liquid supply line
97B bypass line
98 control valve
99 flowmeter
100 hull integrated type desulfurization device
102 casing
103 Hinged structure
104 Absorption tower
106 Engine casing
108 Crane
110, 116 outer wall
112, 112a, 112b, 118 ribs
114, 120 Stiffener
122 Exhaust gas piping
124 Piping
126 frames
p welding point

Claims (30)

A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower including an absorption tower body portion defining an internal space having a longitudinal direction and formed with an exhaust gas introduction port communicating with the internal space at one end portion in the longitudinal direction,
And an exhaust gas introducing device for introducing the exhaust gas discharged from the exhaust gas generating device to the absorption tower main body part,
The maximum length in the longitudinal direction of the internal space of the absorption tower body portion is L,
When the maximum width in the width direction orthogonal to the longitudinal direction of the internal space of the absorption tower body portion is W,
(W: L) of the maximum width (W) to the maximum length (L) is more than 1: 1.1 and not more than 1: 6.0. A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower including an absorption tower body portion defining an internal space;
A scattering device capable of scattering the cleaning liquid in the exhaust gas flowing in the internal space,
And a filling material filled in the filling layer formed in the inner space, the filling material being configured to bring the washing liquid into gas-liquid contact with the exhaust gas passing through the filling layer. 3. The method of claim 2,
A method layer is formed on at least a part of a wall surface other than a wall surface for partitioning the filling layer in a wall surface defining the internal space of the absorption tower body portion,
Wherein the sediment layer is not formed on a wall surface of the absorption tower main body portion partitioning the filling layer. The method according to claim 2 or 3,
The filling material is a regular filling material. 5. The method according to any one of claims 2 to 4,
The absorption tower body portion is configured so that the exhaust gas flows upward from below in the vertical direction,
Wherein the spraying device is configured to spray the washing liquid upwardly. A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower body including an absorption tower main body portion defining an internal space and configured to allow the exhaust gas to flow through the internal space and a light permeable sight window capable of viewing the internal space from the outside of the absorption tower body portion, The desulfurization apparatus comprising: The method according to claim 6,
The inner space has a longitudinal direction,
The absorption tower body portion has an exhaust gas inlet which communicates with the internal space at one end portion in the longitudinal direction,
Wherein the visibility window is formed on the other side in the longitudinal direction. 8. The method according to claim 6 or 7,
The ship desulfurizing apparatus further comprises a dispersing device capable of dispersing the cleaning liquid in the exhaust gas flowing in the internal space,
Wherein the spray device has a spray nozzle capable of spraying the cleaning liquid into the inner space,
Wherein the visibility window is disposed at a position where visibility of a scattering state of the cleaning liquid from the spray nozzle is visible. 9. The method of claim 8,
The absorber main body portion is configured so that the exhaust gas flows upward from below in the vertical direction and has a mist eliminator formed above the spray nozzle in the internal space,
Wherein the visibility window is disposed above the spray nozzle and below the mist eliminator. A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower including an absorption tower body portion defining an internal space;
And a dispersing device capable of dispersing the cleaning liquid in the exhaust gas flowing in the internal space,
The apparatus for desulfurizing a marine vessel has a water spray pipe extending in the internal space of the absorption tower body and a plurality of water spray nozzles arranged at a predetermined interval in the water spray pipe. A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower including an absorption tower main body portion defining an internal space and formed with an exhaust gas introduction port communicating with the internal space, and an exhaust gas introduction portion connected to the exhaust gas introduction port,
And an exhaust gas cooling device which is introduced into the exhaust gas introduction portion and is capable of dispersing cooling water with respect to the exhaust gas before being introduced into the internal space,
Wherein the exhaust gas cooling device has a cooling water nozzle configured to eject the cooling water toward the upstream side in the flow direction of the exhaust gas. 12. The method of claim 11,
Wherein the cooling water is seawater introduced into the inside of the ship. 13. The method according to claim 11 or 12,
The exhaust gas introducing portion is configured so that the exhaust gas flows downward from above in the vertical direction,
Wherein the cooling water nozzle is configured to spray the cooling water upward. 14. The method according to any one of claims 11 to 13,
The exhaust gas cooling apparatus includes:
The cooling water nozzle for spraying the cooling water,
A cooling water conduit for supplying the cooling water to the cooling water nozzle,
And a cooling water control valve formed in the cooling water conduit, the cooling water control valve having a cooling water control valve capable of controlling the amount of cooling water dispersed from the cooling water nozzle. 15. The method of claim 14,
And a pressure gauge formed on a downstream side of the cooling water control valve of the cooling water conduit,
Wherein the cooling water control valve is configured to adjust the opening degree so that the pressure of the cooling water detected by the pressure gauge becomes constant. A ship desulfurization apparatus for desulfurizing an exhaust gas discharged from an exhaust gas generator mounted on a ship,
An absorption tower including an absorption tower body portion defining an internal space;
A scattering device capable of scattering the cleaning liquid in the exhaust gas flowing in the internal space,
And a cleaning liquid supply device capable of supplying the cleaning liquid to the spray device,
The cleaning liquid supply device includes:
A cleaning liquid supply line for supplying the cleaning liquid to the dispersing device,
A bypass line that branches off from the cleaning liquid supply line and supplies the cleaning liquid to a storage space in which the cleaning liquid dispersed in the exhaust gas guided to the internal space is stored,
And a control valve formed in the bypass line, the control valve being capable of controlling a supply amount of the cleaning liquid flowing through the bypass line. A ship equipped with the desulfurization apparatus for a ship according to any one of claims 1 to 16. A casing forming part of a hull structure of the ship,
And an absorption tower supported by the casing for desulfurizing the exhaust gas discharged from an exhaust gas generator mounted on the ship. 19. The method of claim 18,
Wherein the absorption tower is welded to the casing surrounding the outer periphery of the absorption tower and is integrally formed with the casing. 20. The method according to claim 18 or 19,
Wherein a gap is formed between the vessel and an engine casing of the vessel located below the absorption tower in a state where the vessel integrated type desulfurization apparatus is mounted on the vessel, Integrated desulfurization unit. 21. The method according to any one of claims 18 to 20,
Wherein the casing has a length along the width direction of the ship greater than a length along the forward and backward direction of the ship. 22. The method according to any one of claims 18 to 21,
Wherein the absorber is located above the exhaust gas pipe of the exhaust gas generating device in a state where the hull integral type desulfurization device is mounted on the ship. 23. The method according to any one of claims 18 to 22,
And at least one of a gas pipe supported by the casing and connecting the exhaust gas pipe of the exhaust gas generator and the exhaust gas inlet of the absorption tower or a liquid pipe through which the absorption liquid used in the absorption tower flows Wherein the apparatus further comprises piping. An apparatus as claimed in any one of claims 18 to 23,
And a part of the hull structure is formed by the hull integral type desulfurization device. 25. The method of claim 24,
Wherein said hull structure includes an engine casing positioned below said casing of said integral integral desulfurization device,
And the lower end of the outer wall of the casing is welded to the engine casing. 26. The method of claim 25,
A first reinforcing member formed by ribs formed in the vertical direction on the inner surface of the outer wall of the casing or a stiffener interposed between the outer walls disposed opposite to each other, and ribs or stiffeners formed on the engine casing And the positions of the second reinforcement members coincide with each other. 27. The method according to any one of claims 24 to 26,
Wherein the hull structure of the ship comprises:
The casing,
And another hull structure welded to the casing adjacent to the casing in the width direction of the ship. And an absorber supported by the casing for desulfurizing the exhaust gas discharged from an exhaust gas generator mounted on the ship to form a unitary integrated desulfurizer Forming step,
And a mounting step of mounting the above-mentioned integral integral type desulfurization device on the ship,
Wherein in the mounting step, the casing of the hull integral type desulfurization device and the hull structure other than the casing of the ship are joined to each other. 29. The method of claim 28,
Wherein the forming step comprises assembling the absorber and the casing together from the lower section to the upper section of the hull integral type desulfurizer together. 29. The method of claim 28,
In the forming step,
Wherein said hull integral type desulfurization apparatus forms an aggregate of a plurality of divided sections divided in the vertical direction,
Wherein the mounting step includes the step of laminating the division sections on the vessel in order to mount the vessel integral type desulfurization apparatus on the vessel.

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