JP7367074B2 - Exhaust gas purification equipment, ships - Google Patents

Description

The present disclosure relates to an exhaust gas purification device and a ship.
This application claims priority to Japanese Patent Application No. 2020-012370 filed in Japan on January 29, 2020, the contents of which are incorporated herein.

Exhaust gas discharged from a ship's internal combustion engine may contain sulfur components. Some ships are equipped with an exhaust gas purification system that purifies exhaust gas by reducing sulfur components contained in the exhaust gas.
On the other hand, Patent Document 1 discloses a hull structure that allows an exhaust gas purification device to be easily mounted on a ship that is not equipped with an exhaust gas purification device.

JP2017-47858A

For example, when adding an exhaust gas purification device as described in Patent Document 1 to an existing ship, the part that supports the exhaust gas purification device may not have sufficient strength to support the exhaust gas removal device. , reinforcement may be required. In this case, there is a problem that the installation work becomes complicated depending on the method of reinforcing the part that supports the exhaust gas removal device.
Additionally, due to restrictions on the location of the exhaust gas purification device, it is not possible to design the exhaust gas purification device and surrounding hull structure to be sufficiently vibration-proof, which may result in nonconformities such as resonance with the ship's main vibrational force. There is sex.

The present disclosure has been made in order to solve the above-mentioned problems, and it is possible to save labor when installing an exhaust gas removal device, and to avoid the occurrence of nonconformities such as vibration that become apparent when installing an exhaust gas purification device. The purpose is to suppress

In order to solve the above problems, an exhaust gas purification device according to the present disclosure is an exhaust gas purification device that purifies exhaust gas discharged from an internal combustion engine of a ship. The exhaust gas purification device according to the present disclosure includes an exhaust gas introduction section, a purification device main body, and a seat section. The exhaust gas introduction section takes in the exhaust gas. The purifier main body extends in the vertical direction and is connected to the exhaust gas introduction section. The purification device main body has a purification section that purifies the exhaust gas sent from inside the exhaust gas introduction section. The seat portion supports the purifier main body from below. The seat portion is joined to the upper surface of the deck of the ship. The purifier main body has a circular cylindrical shape in plan view and includes a bottom wall having a discharge port. The seat portion includes a first digit member, a second digit member , and a fixing member . The first spar member is joined to the upper surface of the deck, projects upward from the upper surface of the deck, and extends in a first direction along the deck in plan view. The second spar member is joined to the upper surface of the deck, projects upward from the upper surface of the deck, intersects the first spar member in plan view, and extends in a second direction along the deck. The second spar member forms a downward space below the purifier main body together with the first spar member and the deck. The fixing member has an annular shape in plan view corresponding to the bottom wall of the purification device main body, and has an upper edge joined to the bottom wall and a lower edge joined to the upper surface of the deck. The first spar member and the second spar member are cross-shaped in plan view, and have the same height dimension from the upper surface of the deck. The fixed member has a height dimension larger than the vertical height of the first digit member and the second digit member, and a lower part intersects the first digit member and the second digit member in a plan view. , an upper portion projects upward from the first spar member and the second spar member.

A ship according to the present disclosure includes an exhaust gas purification device as described above.

According to the exhaust gas purification device of the present disclosure, it is possible to save labor when installing the exhaust gas removal device, and it is also possible to suppress the occurrence of nonconformity such as vibration that becomes apparent by installing the exhaust gas purification device.

1 is a side view showing the overall schematic configuration of a ship according to an embodiment of the present disclosure. FIG. 1 is a cross-sectional view of a ship equipped with an exhaust gas purification device according to an embodiment of the present disclosure, viewed from the bow and aft direction. FIG. 1 is a sectional view showing an exhaust gas purification device according to an embodiment of the present disclosure. FIG. 1 is a plan cross-sectional view of an exhaust gas purification device according to an embodiment of the present disclosure. FIG. 3 is a cross-sectional view showing an exhaust gas purification device according to a modification of the embodiment of the present disclosure. FIG. 7 is a plan cross-sectional view of an exhaust gas purification device according to a modification of the embodiment of the present disclosure.

<First embodiment>
(Ship configuration)
Hereinafter, a ship according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 4.
As shown in FIGS. 1 and 2, the ship 1 mainly includes a hull 2, a funnel 10, and an exhaust gas purification device 20. The type of ship 1 is not limited to a specific type. Examples of the ship type of the ship 1 include a liquefied gas carrier, a ferry, a RORO ship (Roll-on/Roll-off ship), a PCTC (Pure Car & Truck Carrier), and a passenger ship.

(hull configuration)
The hull 2 has a pair of sides 3A, 3B and a bottom 4, which form the outer shell. The sides 3A and 3B include a pair of side outer plates forming port and starboard sides, respectively. The bottom 4 includes a bottom shell plate that connects these sides 3A and 3B. The pair of sides 3A, 3B and the bottom 4 form the outer shell of the hull 2 into a U-shape in a cross section perpendicular to the bow and stern direction FA.

The hull 2 further includes an upper deck 5 and a bottom deck 6 between the pair of sides 3A and 3B. The upper deck 5 is the uppermost deck of the all-through decks. The bottom deck 6 is provided within the hull 2 and forms a double bottom together with the bottom shell.

An internal combustion engine 7 is provided within the hull 2 . Examples of the internal combustion engine 7 include a main engine that generates driving force for propelling the hull 2, and an engine that drives a generator that supplies electric power to the hull 2. The internal combustion engine 7 is driven by burning fuel. The internal combustion engine 7 discharges exhaust gas generated by burning fuel. The fuel for the internal combustion engine 7 used in this embodiment is a fuel that emits exhaust gas containing a large amount of sulfur, and examples thereof include heavy oils such as A heavy oil and C heavy oil.

(Funnel configuration)
The funnel 10 is provided at the stern portion 2b of the hull 2. The funnel 10 is provided on the upper deck 5. The funnel 10 has a cylindrical shape extending in the vertical direction Dv, and extends upward from the upper deck 5. An exhaust duct 9 for discharging exhaust gas G is connected to the internal combustion engine 7. The exhaust duct 9 is connected to the internal combustion engine 7 and a flue 11 extending within the funnel 10 .

(Configuration of exhaust gas purification device)
As shown in FIG. 2, the exhaust gas purification device 20 is provided in the stern portion 2b of the hull 2, and is provided adjacent to the funnel 10. The exhaust gas purification device 20 removes sulfur contained in the exhaust gas G guided to the flue 11 via the exhaust duct 9. As shown in FIG. 3, the exhaust gas purification device 20 includes an exhaust gas introduction section 21, a purification device main body 22A, a seat portion 30A, and a casing 25.

The exhaust gas introduction section 21 forms a pipe line that takes in the exhaust gas G. One end 21a of the exhaust gas introduction section 21 is connected to the flue 11. In other words, the exhaust gas G is taken into the exhaust gas introducing portion 21 from the flue 11 of the funnel 10 . The other end 21b of the exhaust gas introduction section 21 is connected to the purifier main body 22A. The exhaust gas introduction section 21 illustrated in this embodiment sends the exhaust gas G into the lower part of the purifier main body 22A. The exhaust gas G fed into the purifier main body 22A is purified while flowing from the bottom to the top within the purifier main body 22A, and is released from the upper part of the purifier main body 22A through the funnel 10. Ru.

As shown in FIGS. 2 and 3, the purification device main body 22A includes a purification section 23 for purifying the exhaust gas G therein. The purifying section 23 illustrated in this embodiment has a plurality of nozzles 24. A seawater supply pipe 101 is connected to the plurality of nozzles 24. The seawater supply pipe 101 supplies seawater taken in from the lower part of the hull 2 by a pump (not shown) or the like to the plurality of nozzles 24 of the purification section 23 .

The seawater supplied to the plurality of nozzles 24 is injected into the purification device main body 22A. The injected seawater comes into contact with the sulfur content (sulfur oxides) contained in the exhaust gas G and recovers the sulfur content. Seawater from which sulfur has been recovered contains sulfuric acid, which is produced when sulfur dissolves in water. This seawater containing sulfuric acid is temporarily stored in the bottom 22b of the purification device main body 22A, and is discharged from a discharge port 22e, which will be described later. Note that various types of configurations can be applied to the purification section 23. That is, the purifying section 23 is not limited to the above configuration as long as it has a configuration that can remove sulfur from the exhaust gas G.

The purifier main body 22A has a cylindrical shape extending in the vertical direction Dv. Specifically, the purifier main body 22A illustrated in this embodiment has a circular cylindrical shape in plan view.

The purifier main body 22A has a discharge port 22e on the bottom wall 22bf. A pipe 102 is connected to this discharge port 22e. Seawater containing sulfuric acid accumulated in the bottom portion 22b of the purification device main body 22A is discharged from the discharge port 22e. The pipe 102 extends downward from the outlet 22e of the purifier main body 22A. The pipe 102 discharges seawater containing sulfuric acid discharged from the discharge port 22e to the outside of the hull 2 via a dilution unit (not shown) or the like.

As shown in FIGS. 3 and 4, the seat portion 30A supports the purifier main body 22A from below. The seat portion 30A of this embodiment is joined to the upper surface of a support deck (deck) 41 provided above the upper deck 5 by welding or the like.

The support deck 41 is formed into a plate shape provided above the upper deck 5. The support deck 41 is provided above the upper deck 5 at intervals and extends parallel to the upper deck 5. The support deck 41 of this embodiment is supported from below by columns 43 and the like. Note that the support deck 41 may have a beam (not shown) joined by welding or the like on its lower surface. As the beam, for example, a beam that is joined to the lower surface during installation work of the support deck 41 and extends in the transverse direction or the bow and stern direction can be exemplified. The support deck 41 in this embodiment is not installed to support the exhaust gas purification device 20 and does not have the strength to support the exhaust gas purification device 20.

The seat portion 30A includes at least a first digit member 31A and a second digit member 31B. In addition to the first digit member 31A and the second digit member 31B, the seat portion 30A in this embodiment further includes a fixing member 31C.
The first spar member 31A projects upward from the support deck 41 and extends in the bow and aft direction FA (first direction) in plan view.
The second spar member 31B projects upward from the support deck 41 and extends in the ship width direction Dw (second direction) intersecting with the first spar member 31A in plan view. The second spar member 31B forms a downward space S below the purification device main body together with the first spar member 31A and the deck 40. This embodiment includes a plurality of first digit members 31A and a plurality of second digit members 31B. The first girder member 31A and the second girder member 31B are orthogonal to each other in a plan view, and form a grid shape (in other words, a lattice shape). The first spar member 31A and the second spar member 31B of this embodiment are formed with the same height dimension. In addition, although the first spar member 31A illustrated in this embodiment is continuously formed in the bow and aft direction FA, and the second spar member 31B is continuously formed in the ship width direction Dw, The first digit member 31A and the second digit member 31B may have a partially discontinuous portion (in other words, a cutout, etc.).

The fixing member 31C is fixed to the bottom 22b of the purifier main body 22A. The fixing member 31C extends along the outer peripheral edge of the bottom wall 22bf of the purifier main body 22A in plan view. The fixing member 31C in this embodiment has a cylindrical shape extending in the vertical direction Dv, and has an annular shape in a plan view corresponding to the bottom wall 22bf of the purification device main body 22A. That is, the fixing member 31C has a cylindrical shape that continues along the outer peripheral edge of the bottom wall 22bf of the purification device main body 22A. The upper edge of this fixing member 31C is joined to the bottom 22b of the purifier main body 22A by bolting, welding, or the like. Further, the lower edge of the fixing member 31C is joined to the upper surface of the support deck 41 by welding or the like, similarly to the first spar member 31A and the second spar member 31B. Note that flanges (not shown) are provided on the upper edge of the fixing member 31C and the bottom 22b of the purifier main body 22A, respectively, and these flanges are used to connect the fixing member 31C and the purifier main body 22A by bolting, welding, etc. You may also do so.

The fixing member 31C has a predetermined height in the vertical direction Dv. In this embodiment, the fixing member 31C has a height of, for example, 1 m or more in the vertical direction Dv. Furthermore, the height of this fixing member 31C is greater than the height of the first spar member 31A and the second spar member 31B in the vertical direction Dv. That is, as shown in FIG. 3, the upper part of the fixing member 31C projects upward from the first spar member 31A and the second spar member 31B. On the other hand, as shown in FIG. 4, the lower part of the fixing member 31C is formed to intersect with the first digit member 31A and the second digit member 31B in plan view. Although a case has been described in which the fixing member 31C is continuous along the outer periphery of the bottom wall 22bf of the purifier main body 22A, the fixing member 31C is not limited to a shape that forms a closed space in a plan view, such as an annular shape. . For example, the fixing member 31C may include a portion (in other words, a notch, etc.) that is not continuous with a part of the circumferential direction along the outer periphery of the bottom wall 22bf of the purifier main body 22A. Furthermore, the fixing member 31C may include a manhole or the like in a cylindrical portion for allowing an operator to enter the inner space of the fixing member 31C during maintenance or the like.

The seat portion 30A formed in this manner forms a lower space S between the purifier main body 22A and the support deck 41 (deck 40), that is, below the purifier main body 22A in the vertical direction Dv. A plurality of manholes 32 (see FIG. 3) having a size large enough for a worker to pass through are formed in the seat portion 30A. Specifically, manholes are formed in each of the first girder member 31A, the second girder member 31B, and the fixing member 31C, so that workers can easily enter and exit the lower space S. In this embodiment, a lower space S is further formed by the second girder member 31B, the support deck 41, the fixing member 31C, and the upper surface of the support deck 41.

As shown in FIG. 3, the casing 25 is provided so as to cover the exhaust gas introduction section 21 and the purifier main body 22A. A portion of the casing 25 is joined to the funnel casing 12 that covers the flue 11 of the funnel 10 by welding or the like and is integrated.

The purifier main body 22A is connected to the casing 25 via a connecting member 27 above the seat portion 30A. In this embodiment, the connecting member 27 connects the upper edge of the purifier main body 22A and the upper part of the casing 25 at multiple locations. More specifically, in this embodiment, a total of four connecting members 27 are provided so as to extend in all directions from the upper end edge of the purifier main body 22A in plan view. One end of each connection member 27 is connected to the casing 25, and the other end of each connection member 27 is connected to the upper part of the purifier main body 22A.

A plurality of hanging fittings 28 (for example, eye plates, eye bolts, etc.) are provided on the upper edge of the purifier main body 22A illustrated in this embodiment. The hanging fitting 28 is provided for hanging a wire (not shown) or a hook when the purification device main body 22A is suspended and installed using lifting equipment such as a crane. The other end of each connecting member 27 is fixed to these hanging fittings 28. In addition, in this embodiment, the case where the connection member 27 fixes the purifier main body 22A and the casing 25 so as not to be relatively displaceable is illustrated, but for example, a damper may be provided in the middle of the connection member 27. Further, the connecting member 27 may have a structure that releases an excessive load when it is applied due to the movement of the hull 2. An example of a structure for releasing this load is a structure in which a part of the connecting member 27 is provided with a bolt fastening surface designed to slip when an excessive load is applied.

To install such an exhaust gas purification device 20 on an existing ship 1, if the support deck 41 is not installed, first, the support columns 43 and the support deck 41 are installed on the upper deck 5. Next, the seat portion 30A is joined onto the support deck 41 by welding. Thereafter, the purifier main body 22A is suspended and installed on the seat portion 30A using lifting equipment. Then, the fixing member 31C of the seat portion 30A and the purifier main body 22A are joined. When installing the purifier main body 22A by lifting it with lifting equipment, the exhaust gas introduction part 21 may be previously integrated and provided in the purifier main body 22A. Alternatively, the exhaust gas introduction section 21 may be connected to the purifier main body 22A and the funnel 10 after the purifier main body 22A is installed on the seat portion 30A.
After that, the casing 25 is installed so as to cover the exhaust gas introduction section 21 and the purifier main body 22A. Then, the purifier main body 22A and the casing 25 are connected by the connecting member 27.

(effect)
In the exhaust gas purification device 20 of the above embodiment, the purification device main body 22A is supported from below by the seat portion 30A. This seat portion 30A is joined to the upper surface of a support deck 41 as the deck 40. Thereby, the deck 40 can be reinforced simply by joining the sheet portion 30A to the upper surface of the deck 40. Therefore, there is no need to add a reinforcing member such as a beam to the lower surface of the deck 40 or to replace the existing reinforcing member with a larger reinforcing member. Therefore, even if the deck 40 does not have sufficient strength, it is possible to easily install the heavy purifier main body 22A on the support deck 41.
Further, the seat portion 30A includes at least a first spar member 31A and a second spar member 31B. By forming such a lower space S that forms the space S, when installing the piping 102 etc. between the bottom wall 22bf of the purification device main body 22A and the deck 40, the installation space for the piping 102 etc. is reduced. At the same time, it is possible to easily perform the work of connecting the discharge port 22e and the pipe 102.

In the embodiment described above, the deck 40 is a support deck 41 provided above the upper deck 5 of the ship 1.
Thereby, the support deck 41 disposed above the upper deck 5 can be reinforced by the seat portion 30A. Therefore, the purifier main body 22A, which is a heavy object, can be supported by the support deck 41. Moreover, since the installation of the exhaust gas purification device 20 is not limited to the upper deck 5, the degree of freedom in installing the exhaust gas purification device 20 can be improved.

In the above embodiment, the seat portion 30A further includes a fixing member 31C. The fixing member 31C extends along the outer peripheral edge of the bottom portion 22b of the purifier main body 22A in plan view. Furthermore, the fixing member 31C protrudes upward from at least the first spar member 31A and the second spar member 31B. And it is fixed to the bottom part 22b of the purification device main body 22A.
Therefore, the fixing member C can further strengthen the bond between the seat portion 30A and the purifier main body 22A, and improve reliability.

In the embodiment described above, the purifier main body 22A is further connected to the casing 25 via the connecting member 27 above the seat portion 30A. Therefore, it is possible to suppress vibration of the upper part of the purifier main body 22A, and to suppress resonance of the purifier main body 22A due to vibrations of the internal combustion engine 7 and the like of the ship 1. It is possible to suppress the purification device main body 22A from shaking due to the shaking of the ship 1.

In the above embodiment, the casing 25 is further joined to the funnel casing 12.
Thereby, the casing 25 that covers the exhaust gas introduction part 21 and the purifier main body 22A can be installed more firmly. Furthermore, since the funnel casing 12 and the casing 25 are joined by welding or the like, the rigidity of the structure formed by the casing 25 and the funnel casing 12 can be improved. Further, since the casing 25 and the funnel casing 12 are integrated, the degree of freedom in installing the exhaust gas introducing section 21 can be improved. Furthermore, by integrating the casing 25 and the funnel casing 12, the natural frequency of the exhaust gas purification device 20 can be changed, so resonance with vibrations caused by the main engine or the like can be avoided. Further, by integrating the casing 25 and the funnel casing 12, the structure can be made larger, so the number of members contributing to adjustment of the natural frequency can be increased. Therefore, it becomes possible to widen the adjustment range of the natural frequency.

(Modified example of embodiment)
In the above embodiment, the purifier main body 22A has a circular cylindrical shape in plan view, but it is not limited to this. For example, as shown in FIGS. 5 and 6, the purifier main body 22B has a rectangular shape in plan view. It may be cylindrical.
In this case, the seat portion 30B provided below the purifier main body 22B does not include the fixing member 31C of the above-described embodiment. The seat portion 30B in a modification of this embodiment includes a plurality of first digit members 35A and a plurality of second digit members 35B.

The first spar member 35A projects upward from the deck 40 (support deck 41) and extends, for example, in the bow and aft direction (first direction) FA. The second spar member 35B projects upward from the deck 40 (support deck 41) and extends in the ship width direction (second direction) Dw. A plurality of first spar members 35A are provided in parallel to each other below the purifier main body 22B. A plurality of second girder members 35B are provided in parallel to each other below the purifier main body 22B. The extending direction of these first spar members 35A and the extending direction of the second spar members 35B intersect perpendicularly. That is, these first digit members 35A and second digit members 35B are arranged in a grid shape in plan view. Such a seat portion 30B is joined to the upper surface of the support deck 41, which is the deck 40, by welding or the like. The first spar member 35A, the second spar member 35B, and the deck 40 form a downward space S below the purifier main body 22B.

Further, the purifying device main body 22B in a modified example of this embodiment has a plurality of leg members 22f for making the purifying device main body 22B independent during transportation. These leg members 22f are arranged along the outer periphery of the rectangular bottom wall 22bf of the purifier main body 22B at intervals in the direction in which the sides of the rectangle extend. The first spar member 35A and the second spar member 35B described above form a lattice shape that intersects at the position where the leg members 22f are arranged in a plan view. In other words, the first spar members 35A extend along two sides of the bottom wall 22bf of the purifier main body 22B that extend in the bow and aft direction FA. Second girder members 35B extend along two sides of the bottom wall 22bf of the purification device main body 22B that extend in the ship width direction Dw. Each leg member 22f is joined to the seat portion 30B by welding or the like at a portion where the first spar member 35A and the second spar member 35B intersect. Note that the first spar member 35A and the second spar member 35B are not limited to those that are continuous in the bow and aft direction FA and the ship width direction Dw. For example, they may be separated below the leg member 22f and connected via the leg member 22f.

(Other embodiments)
Although the embodiment of the present disclosure has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and may include design changes without departing from the gist of the present disclosure.
For example, in the embodiment and modification described above, the seat portions 30A and 30B are provided on the support deck 41 provided above the upper deck 5, but the present invention is not limited to this. The deck 40 that joins the seat parts 30A and 30B may be any deck 40, for example, it may be joined to the upper deck 5.
Further, the fixing member 31C of the first embodiment may include, for example, an annular flange (not shown). Further, the fixing member 31C may be formed of a cylindrical membrane plate in order to smoothly transmit the load from the flange to the first spar member 31A and the second spar member 31B.

In the above embodiment, the support deck 41 does not have the strength to support the exhaust gas purification device 20, but the support deck 41 does not have the strength to support the exhaust gas purification device 20. Good too.

Furthermore, in the above-mentioned embodiment, the case where the support deck 41 is newly installed in the existing ship 1 in which the support deck 41 is not installed was illustrated. However, if the support deck 41 is not installed in the existing ship 1, the support deck 41 may not be newly installed. For example, if the ship 1 has an existing support deck 41, the sheet portion 30A is welded onto the support deck 41, and if there is no existing support deck 41, the exhaust gas purification device is attached to the upper deck 5, etc. What is necessary is just to join 30 A of seat parts by welding to the upper surface of the deck of the existing ship 1 which can add 20.

<Additional notes>
The exhaust gas purification device 20 and the ship 1 described in the embodiment can be understood, for example, as follows.

(1) The exhaust gas purification device 20 according to the first aspect is an exhaust gas purification device 20 that purifies the exhaust gas G discharged from the internal combustion engine 7 of the ship 1, and includes an exhaust gas introduction part 21 that takes in the exhaust gas G, and an upper and lower part. Purifier main bodies 22A and 22B that extend in the direction Dv, are connected to the exhaust gas introduction section 21, and have a purification section 23 that purifies the exhaust gas G sent from inside the exhaust gas introduction section 21, and the purification apparatus main body 22A, 22B from below, and seat parts 30A, 30B joined to the upper surface of the deck 40 of the ship 1, the seat parts 30A, 30B protruding upward from the deck 40 and having a flat surface. First spar members 31A and 35A extend in the first direction FA along the deck 40 when viewed, and first spar members 31A and 35A extend upward from the deck 40 and intersect with the first spar members 31A and 35A when viewed from above and extend along the deck 40. An example of the deck 40 includes second spar members 31B, 35B that extend in two directions Dw and form a downward space S below the purifier main bodies 22A, 22B together with the first spar members 31A, 35A and the deck 40. Examples include the support deck 41 and the upper deck 5.

In this exhaust gas purification device 20, purification device main bodies 22A and 22B are supported on upper and lower cylindrical seat portions 30A and 30B having planar shapes corresponding to bottom walls 22bf of the purification device main bodies 22A and 22B. Since the seat parts 30A and 30B are joined to the upper surface of the deck 40 of the ship 1, the deck 40 is reinforced by the seat parts 30A and 30B. Therefore, the purifier main bodies 22A, 22B, which are heavy objects, can be reliably supported on the deck 40. As a result, even if the deck 40 does not have sufficient strength to support the exhaust gas purification device 20, the exhaust gas purification device 20 can be reliably installed.
Moreover, since the seat parts 30A and 30B are cylindrical, a lower space S is formed inside the seat parts 30A and 30B, which is located between the purifier main bodies 22A and 22B and the deck 40 in the vertical direction Dv. By forming such a downward space S, when installing the piping 102 etc. between the purification device main bodies 22A, 22B and the deck 40, the installation space for the piping 102 etc. is secured, and the connection work of the piping 102 etc. can be easily done.

(2) The exhaust gas purification device 20 according to the second aspect is the exhaust gas purification device 20 of (1), in which the deck 40 is a support deck 41 provided above the upper deck 5 of the ship 1. .

Thereby, the support deck 41 as the deck 40 is reinforced by the seat parts 30A and 30B. Therefore, the purifier main bodies 22A and 22B, which are heavy objects, can be supported by the support deck 41 disposed above the upper deck 5.

(3) The exhaust gas purification device 20 according to the third aspect is the exhaust gas purification device 20 of (1) or (2), in which the sheet portion 30A is located on the bottom wall 22bf of the purification device main body 22A in plan view. It further includes a fixing member 31C that extends along the outer peripheral edge, protrudes upward from at least the first spar member 31A and the second spar member 31B, and is fixed to the bottom 22b of the purifier main body 22A.

Thereby, the connection between the seat portion 30A and the purifying device main body 22A can be made stronger using the fixing member 31C, and reliability can be improved.

(4) The exhaust gas purification device 20 according to the fourth aspect is the exhaust gas purification device 20 according to any one of (1) to (3), and includes the exhaust gas introduction section 21 and the purification device main bodies 22A and 22B. It further includes a covering casing 25 and a connecting member 27 that connects the purifier main bodies 22A, 22B and the casing 25.

Thereby, the purifier main bodies 22A, 22B are connected to the casing 25 via the connecting member 27 above the seat portions 30A, 30B. Therefore, it is possible to suppress vibration of the purifier main bodies 22A, 22B, and to suppress resonance of the purifier main bodies 22A, 22B due to vibrations of the internal combustion engine 7, etc. of the ship 1. Further, it is possible to suppress the purification device main bodies 22A, 22B from rocking due to the shaking of the ship 1.

(5) The exhaust gas purification device 20 according to the fifth aspect is the exhaust gas purification device 20 of (4), in which the casing 25 is joined to at least the funnel casing 12 of the ship 1.

Thereby, the casing 25 that covers the exhaust gas introduction part 21 and the purifier main bodies 22A, 22B can be installed more firmly. Furthermore, since the upper portions of the purifier bodies 22A, 22B are joined to the funnel casing 12 via the connecting member 27 and the casing 25, the purifier bodies 22A, 22B are more firmly supported.

(6) The ship 1 according to the sixth aspect includes the exhaust gas purification device 20 according to any one of (1) to (5).

As a result, the exhaust gas purification device 20 can be easily installed on the deck 40, and since the lower space S is formed, when the piping 102 etc. is provided between the purification device main bodies 22A, 22B and the deck 40, the piping 102 etc. In addition to securing installation space, it is possible to easily perform work such as connecting the piping 102. Therefore, it becomes possible to easily improve the environmental performance of the ship 1.

According to the exhaust gas purification device of the present disclosure, it is possible to save labor when installing the exhaust gas removal device, and it is also possible to suppress the occurrence of nonconformity such as vibration that becomes apparent by installing the exhaust gas purification device.

1... Vessel 2... Hull 2b... Stern part 3A, 3B... Broadside 4... Bottom 5... Upper deck 6... Bottom deck 7... Internal combustion engine 9... Exhaust duct 10... Funnel 11... Flue 12... Funnel casing 20... Exhaust gas purification device 21...Exhaust gas introduction part 21a...One end 21b...Other ends 22A, 22B...Purifier body 22b...Bottom part 22bf...Bottom wall 22e...Discharge port 22f...Leg member 23...Purification part 24...Nozzle 25...Casing 27...Connecting member 28... Hanging fittings 28h...locking holes 30A, 30B...seat portion 31A...first digit member 31B...second digit member 31C...fixing member 32...manhole 35...frame portion 35A...first digit member 35B...second digit member 40... Deck 41...Support deck 43...Strut 101...Seawater supply pipe 102...Piping Dv...Vertical direction Dw...Ship width direction FA...Fore and aft direction G...Exhaust gas S...Downward space

Claims (5)

An exhaust gas purification device that purifies exhaust gas emitted from a ship's internal combustion engine,
an exhaust gas introduction section that takes in the exhaust gas;
a purification device main body that extends in the vertical direction, is connected to the exhaust gas introduction section, and has a purification section that purifies the exhaust gas sent from inside the exhaust gas introduction section;
a seat part that supports the purification device main body from below and is joined to the upper surface of the deck of the ship;
Equipped with
The purification device main body is
It has a circular cylindrical shape in plan view with a bottom wall having a discharge port,
The seat portion is
a first spar member joined to the upper surface of the deck, protruding upward from the upper surface of the deck and extending in a first direction along the deck in plan view;
The first spar member and the deck are joined to the upper surface of the deck, protrude upward from the upper surface of the deck, intersect the first spar member in plan view, and extend in a second direction along the deck. a second girder member that together forms a downward space below the purifier main body;
a fixing member having an annular shape in a plan view corresponding to the bottom wall of the purification device main body, and having an upper edge joined to the bottom wall and a lower edge joined to the upper surface of the deck ;
The first girder member and the second girder member are cross-shaped in plan view and have the same height dimension from the upper surface of the deck,
The fixed member has a height dimension larger than the vertical height of the first digit member and the second digit member, and a lower part intersects the first digit member and the second digit member in a plan view. , an upper part projects upward from the first spar member and the second spar member.
Exhaust gas purification equipment. The exhaust gas purification device according to claim 1, wherein the deck is a support deck provided above an upper deck of the ship. a casing that covers the exhaust gas introduction section and the purification device main body;
The exhaust gas purification device according to claim 1 or 2 , further comprising a connection member that connects the purification device main body and the casing above the seat portion. The exhaust gas purification device according to claim 3 , wherein the casing is joined to at least a funnel casing of the ship. A ship comprising the exhaust gas purification device according to any one of claims 1 to 4 .

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