KR20190113487A - Ship - Google Patents

Abstract

A vessel is disclosed. According to an embodiment of the present invention, the vessel comprises: a hull; an exhaust gas discharge device provided in the hull; and an exhaust gas treatment device provided in the hull to treat the exhaust gas discharged from the exhaust gas discharge device. In the exhaust gas discharge device, low sulfur oil is combusted as fuel so that exhaust gas having sulfur oxides less than a predetermined treatment amount is discharged. In the exhaust gas treatment device, carbon dioxide can be removed from the exhaust gas.

Description

Ship {SHIP}

The present invention relates to a ship.

The ship is provided with an exhaust gas discharge device through which exhaust gas such as an engine or a boiler is discharged.

Among the exhaust gas discharge apparatuses, low sulfur oil is used as a fuel to burn sulfur oxides so that the exhaust gas is less than a predetermined treatment reference amount. In this case, it is possible to discharge the exhaust gas to the outside without treating sulfur oxides from the exhaust gas in an exhaust gas processing apparatus such as a scrubber provided in the ship so as to be connected to the exhaust gas exhaust apparatus.

On the other hand, as the exhaust gas emission standards are being strengthened, there is a need to remove carbon dioxide even when sulfur oxides discharge exhaust gas less than a predetermined treatment reference amount from the exhaust gas discharge device.

The present invention is made by recognizing at least any one of the above-mentioned demands or problems.

One aspect of the present invention is to remove the carbon dioxide from the exhaust gas when the combustion of low sulfur oil as fuel in the exhaust gas discharge device provided in the vessel to discharge the exhaust gas less than a predetermined treatment amount. It is.

A vessel related to an embodiment for realizing at least one of the above problems may include the following features.

Ship according to one embodiment of the present invention the hull; An exhaust gas discharge device provided in the hull; And an exhaust gas treatment device provided in the hull to process the exhaust gas discharged from the exhaust gas discharge device. The exhaust gas discharge device may include low sulfur oil as a fuel, and thus, sulfur oxides may emit exhaust gas less than a predetermined treatment reference amount, and the exhaust gas treatment device may remove carbon dioxide from the exhaust gas.

In this case, the exhaust gas treatment device may include a housing connected to the exhaust gas discharge device, and a carbon dioxide removal unit for removing carbon dioxide from the exhaust gas flowing into the housing from the exhaust gas discharge device.

In addition, the carbon dioxide removal unit may remove carbon dioxide from the exhaust gas by spraying the carbon dioxide treatment liquid to the exhaust gas flowing in the housing.

The carbon dioxide removal unit may include a carbon dioxide treatment liquid injection unit for injecting a carbon dioxide treatment liquid into the exhaust gas flowing in the housing.

In addition, the carbon dioxide treatment liquid injection unit is connected to a carbon dioxide treatment liquid supply source and the other side passes through the housing, and at least a portion thereof is provided with a carbon dioxide treatment liquid supply pipe, and the carbon dioxide treatment liquid provided inside the housing. It may include a carbon dioxide treatment liquid flow pipe connected to a portion of the supply pipe, and a carbon dioxide treatment liquid injection nozzle provided in the carbon dioxide treatment liquid flow tube.

The carbon dioxide removal unit may further include a carbon dioxide treatment liquid recovery unit for recovering the carbon dioxide treatment liquid injected into the housing.

In addition, the carbon dioxide treatment liquid recovery unit is connected to the carbon dioxide treatment liquid recovery tube, one side of which is connected to the drainage duct provided in the housing so that the carbon dioxide treatment liquid injected into the housing is drained, and the other side of the carbon dioxide treatment liquid recovery tube is connected. It may include a carbon dioxide treatment liquid storage tank.

The carbon dioxide treatment liquid recovery unit may further include a carbon dioxide treatment liquid filtration unit provided in the carbon dioxide treatment liquid recovery tube to filter a carbon dioxide treatment liquid from which carbon dioxide is removed from exhaust gas.

In addition, the carbon dioxide treatment liquid storage tank is connected to one side of the carbon dioxide treatment liquid supply pipe included in the carbon dioxide treatment liquid injection unit may be a carbon dioxide treatment liquid supply source for supplying the carbon dioxide treatment liquid to the carbon dioxide treatment liquid supply pipe.

In addition, a porous plate may be provided at a portion inside the housing before the carbon dioxide treatment liquid injection unit in the flow direction of the exhaust gas to remove particulate matter while removing carbon dioxide from the exhaust gas.

In addition, the housing may be installed in the stack provided in the hull.

The cross section of the housing may have a rectangular shape.

In addition, at least a portion of the housing may be made by the stack.

In addition, the housing may include an inlet duct connected to the exhaust gas discharge device and an exhaust duct from which the treated exhaust gas is discharged.

In addition, a portion of the inside of the housing after the inlet duct in the flow direction of the exhaust gas may be provided with a porous plate to evenly flow the exhaust gas introduced through the inlet duct.

As described above, according to the embodiment of the present invention, carbon dioxide is discharged from the exhaust gas when the sulfur oxide emits exhaust gas less than a predetermined treatment amount by burning low sulfur oil as fuel in the exhaust gas discharge device provided in the ship. Can be removed

1 is a view showing a first embodiment of the ship according to the present invention.
2 is an enlarged view of a portion where an exhaust gas treating apparatus is installed in a first embodiment of a ship according to the present invention.
3 is a perspective view showing the exhaust gas treating apparatus of the first embodiment of the ship according to the present invention, excluding a part of the carbon dioxide removal unit.
4 is a view showing an exhaust gas treating apparatus of a first embodiment of a ship according to the present invention, which includes all carbon dioxide removal units.
5 is a view showing an embodiment of the carbon dioxide treatment liquid filtration unit included in the carbon dioxide treatment liquid recovery unit of the carbon dioxide removal unit of the exhaust gas treatment apparatus of the first embodiment of the ship according to the present invention.
6 is a view showing another embodiment of the carbon dioxide treatment liquid filtration unit included in the carbon dioxide treatment liquid recovery unit of the carbon dioxide removal unit of the exhaust gas treatment apparatus of the first embodiment of the ship according to the present invention.
7 is a view showing a second embodiment of the ship according to the present invention.
8 is an enlarged view of a portion where an exhaust gas treating apparatus is installed in a second embodiment of a ship according to the present invention.
9 is a perspective view showing an exhaust gas treating apparatus of a second embodiment of a ship according to the present invention, excluding part of the carbon dioxide removal unit.
FIG. 10 is a view showing an exhaust gas treating apparatus of a second embodiment of a ship according to the present invention, which includes all carbon dioxide removal units.

In order to help the understanding of the features of the present invention as described above, it will be described in more detail with respect to the ship associated with the embodiment of the present invention.

The embodiments described below will be described based on the embodiments best suited for understanding the technical features of the present invention, and the technical features of the present invention are not limited by the described embodiments. It is to illustrate that the present invention can be implemented as in the embodiments. Accordingly, the present invention may be modified in various ways within the technical scope of the present invention through the embodiments described below, and such modified embodiments fall within the technical scope of the present invention. And, in order to help the understanding of the embodiments described below, in the reference numerals described in the accompanying drawings, among the components that will have the same function in each embodiment, the related components are denoted by the same or extension numbers.

First embodiment of the ship

1 to 6, a first embodiment of a ship according to the present invention will be described.

1 is a view showing a first embodiment of the ship according to the present invention, Figure 2 is an enlarged view of the portion where the exhaust gas treatment apparatus is installed in the first embodiment of the ship according to the present invention.

3 is a perspective view showing the exhaust gas treating apparatus of the first embodiment of the ship according to the present invention, excluding a part of the carbon dioxide removing unit, and FIG. 4 is the exhaust gas treating apparatus of the first embodiment of the ship according to the present invention. In the drawings, all of including the carbon dioxide removal unit.

5 is a view showing an embodiment of the carbon dioxide treatment liquid filtration unit included in the carbon dioxide treatment liquid recovery unit of the carbon dioxide removal unit of the exhaust gas treatment apparatus of the first embodiment of the ship according to the present invention, FIG. 2 is a view showing another embodiment of the carbon dioxide treatment liquid filtration unit included in the carbon dioxide treatment liquid recovery unit of the carbon dioxide removal unit of the exhaust gas treatment apparatus according to the first embodiment of the invention.

The first embodiment of the ship 10 according to the present invention may include a hull 20, the exhaust gas discharge device 30, and the exhaust gas processing device 100.

The hull 20 may be provided with a stack 21. The stack 21 may include a housing 200 to be described later included in the exhaust gas treating apparatus 100 as illustrated in FIGS. 1 and 2. As shown in FIG. 1, the hull 20 may also be provided with a residence port 22 where the crew of the ship 10 resides. In addition, the hull 20 may also be provided with an exhaust gas discharge device 30 for discharging the exhaust gas. However, the configuration of the hull 20 is not particularly limited, and any configuration known in the art can be used as long as it can operate the ocean.

The exhaust gas discharge device 30 may be provided in the hull 20. The exhaust gas discharge device 30 may discharge the exhaust gas. 1 and 2, the exhaust pipe PE is connected to the exhaust gas discharge device 30 to exhaust the exhaust gas through the exhaust pipe PE. However, the configuration in which the exhaust gas discharge device 30 discharges the exhaust gas is not particularly limited, and any configuration known in the art can be used as long as it can discharge the exhaust gas.

The exhaust gas discharge device 30 may be, for example, an engine 31 or a boiler 32 such as the main engine 31a and the power generation engine 31b, as shown in FIGS. 1 and 2. However, the exhaust gas discharge device 30 is not particularly limited, and any known gas can be used as long as the exhaust gas is discharged.

In the exhaust gas discharge device 30, combustion may be performed using low sulfur oil as a fuel. As a result, sulfur oxide may be less than the predetermined treatment reference amount in the exhaust gas discharged from the exhaust gas discharge device 30. In this manner, when the sulfur oxide is less than the predetermined treatment reference amount in the exhaust gas discharged from the exhaust gas discharge device 30, it is not necessary to remove the sulfur oxide from the exhaust gas.

The exhaust gas treatment apparatus 100 may be provided in the hull 20 as illustrated in FIGS. 1 and 2 to process the exhaust gas discharged from the exhaust gas discharge apparatus 30. As described above, in the case where the exhaust gas having less sulfur oxide than the predetermined treatment reference amount is discharged from the exhaust gas discharge device 30, it is not necessary to remove the sulfur oxide from the exhaust gas. Accordingly, in the exhaust gas treatment apparatus 100, carbon dioxide may be removed from the exhaust gas discharged from the exhaust gas discharge apparatus 30.

The exhaust gas treating apparatus 100 may include a housing 200 and a carbon dioxide removal unit 400, as shown in FIGS. 3 and 4.

The housing 200 may be connected to the exhaust gas discharge device 30. Accordingly, the exhaust gas discharged from the exhaust gas discharge device 30 may flow into the housing 200 to flow in the housing 200.

The housing 200 may be installed in the stack 21 of the hull 20 as shown in FIGS. 1 and 2.

The cross section of the housing 200 may have a rectangular shape. As such, when the cross section of the housing 200 is rectangular, the dead area which cannot be used inside the stack 21 may be minimized than when the cross section is circular. In addition, when the housing 200 is installed inside the stack 21 than when the cross section is circular, the installation area may be smaller in the case of the same processing capacity. Accordingly, the cross-sectional area of the stack 21 is increased when the cross-sectional area of the stack 21 does not have to be increased or the cross-sectional area of the stack 21 must be increased for installation in the stack 21 of the housing 200. Can be reduced.

Although not shown, at least a portion of the housing 200 may be made by the stack 21. Thereby, the housing 200 does not need to be manufactured separately from the stack 21, and a part of the stack 21 may be utilized as a part of the housing 200, and the housing 200 may be made of the same or similar material as the stack 21. As such, the manufacturing cost of the exhaust gas treating apparatus 100 can be reduced. In addition, if the cross-sectional area of the stack 21 does not have to be increased or if the cross-sectional area of the stack 21 needs to be increased in order to install the housing 200 inside the stack 21, the cross-sectional area of the stack 23 increases. Can be.

The housing 200 may be provided with an inlet duct 210 and an outlet duct 220 as shown in FIGS. 3 and 4.

Inlet duct 210 may be connected to the exhaust gas discharge device (30). The inlet duct 210 may be connected to the exhaust gas discharge device 30 by being connected to the exhaust pipe PE connected to the exhaust gas discharge device 30 as shown in FIGS. 1 and 2, for example. In addition, a flow path switching valve VR may be provided at a portion where the inlet duct 210 and the exhaust pipe PE are connected. In addition, the exhaust gas discharged from the exhaust gas discharge device 30 by the manipulation of the flow path switching valve VR may be introduced into the housing 200 through the inlet duct 210. As such, the exhaust gas introduced into the housing 200 may be removed by the carbon dioxide removal unit 400 while flowing into the discharge duct 220 from the inside of the housing 200.

The inlet duct 210 may be provided at the lower side of the housing 200, for example, at the lower side of the housing 200, as shown in FIGS. 3 and 4. However, the part of the housing 200 in which the inlet duct 210 is provided is not particularly limited, and the exhaust gas discharged from the exhaust gas discharge device 30 connected to the exhaust gas discharge device 30 is inside the housing 200. If the part can flow into the flow, it can be connected to any part of the housing 200.

Meanwhile, as illustrated in FIGS. 3 and 4, a porous plate PP may be provided in a portion inside the housing 200 next to the inlet duct 210 in the flow direction of the exhaust gas. Accordingly, the flow of the exhaust gas introduced into the housing 200 through the inlet duct 210 may be even.

Through the exhaust duct 220, the treated exhaust gas, that is, the exhaust gas from which carbon dioxide has been removed may be discharged. The discharge duct 220 may be provided on an upper surface of the housing 200, for example, an upper surface of the housing 200, as shown in FIGS. 3 and 4. However, the part of the housing 200 in which the exhaust duct 220 is provided is not particularly limited, and if the exhaust gas from which the carbon dioxide is removed by the carbon dioxide removal unit 400 can be discharged, the housing 200 may be discharged. May be connected to any portion of 200.

The housing 200 may also be provided with a drain duct 230. Through the drain duct 230, the carbon dioxide treatment liquid injected into the housing 200 may be drained to remove carbon dioxide from the exhaust gas. 3 and 4, the drain duct 230 may be provided at a lower portion of the housing 200, for example, a lower surface of the lower portion of the housing 200. However, the part of the housing 200 provided with the drainage duct 230 is not particularly limited, and if the part of the housing 200 in which the carbon dioxide treatment liquid injected into the housing 200 can be drained to remove the carbon dioxide from the exhaust gas, the housing ( 200 may be provided at any part of the device.

3 and 4, one side of the carbon dioxide treatment liquid recovery pipe 421 included in the carbon dioxide treatment liquid recovery unit 420 to be described later included in the carbon dioxide removal unit 400 is connected to the drainage duct 230. Can be. Accordingly, the carbon dioxide treatment liquid drained through the drain duct 230 may be recovered by the carbon dioxide treatment liquid recovery tube 421.

The carbon dioxide removal unit 400 may remove carbon dioxide from the exhaust gas flowing into the housing 200 from the exhaust gas discharge device 30. The carbon dioxide removal unit 400 may inject carbon dioxide treatment liquid into the exhaust gas flowing in the housing 200 to remove carbon dioxide from the exhaust gas. The carbon dioxide treatment liquid may be, for example, an aqueous sodium hydroxide solution or seawater. However, the carbon dioxide treatment liquid is not particularly limited, and any known solvent can be used as long as it can be injected into the exhaust gas flowing inside the housing 200 to remove carbon dioxide from the exhaust gas.

The carbon dioxide removal unit 400 may include a carbon dioxide treatment liquid injection unit 410. The carbon dioxide treatment liquid injection unit 410 may inject the carbon dioxide treatment liquid into the exhaust gas flowing inside the housing 200. The carbon dioxide treatment liquid injection unit 410 may include a carbon dioxide treatment liquid supply pipe 411, a carbon dioxide treatment liquid flow pipe 412, and a carbon dioxide treatment liquid injection nozzle (not shown). In addition, to increase the carbon dioxide removal efficiency may further include a material such as a filler.

One side of the carbon dioxide treating solution supply pipe 411 may be connected to the carbon dioxide treating solution supply source. Accordingly, the carbon dioxide treatment liquid from the carbon dioxide treatment liquid supply source may be supplied to the carbon dioxide treatment liquid supply pipe 411. The carbon dioxide treatment liquid supply source to which one side of the carbon dioxide treatment liquid supply pipe 411 is connected may be, for example, a carbon dioxide treatment liquid storage tank 422 to be described later included in the carbon dioxide treatment liquid recovery unit 420. However, the carbon dioxide treatment liquid supply source to which one side of the carbon dioxide treatment liquid supply pipe 411 is connected is not particularly limited, and one side of the carbon dioxide treatment liquid supply pipe 411 may be connected to supply the carbon dioxide treatment liquid to the carbon dioxide treatment liquid supply pipe 411. If so, any known one is possible.

The other side of the carbon dioxide treatment liquid supply pipe 411 may pass through the housing 200 and at least a part thereof may be provided inside the housing 200.

The carbon dioxide treatment liquid supply pipe 411 may be a plurality.

The carbon dioxide treatment liquid supply pipe 411 may be provided with a pump 411a as shown in FIG. 4. By driving the pump 411a, a carbon dioxide treatment liquid from a carbon dioxide treatment liquid supply source such as a carbon dioxide treatment liquid storage tank 422 may be supplied to the carbon dioxide treatment liquid supply pipe 411.

The carbon dioxide treatment liquid flow pipe 412 may be connected to a portion of the carbon dioxide treatment liquid supply pipe 411 provided inside the housing 200. For example, as shown in FIG. 3, a pair of carbon dioxide treatment liquid flow pipes 412 are connected to the carbon dioxide treatment liquid supply pipe 411 so as to face each other, and a plurality of pairs of carbon dioxide treatment liquid flow pipes 412 are carbon dioxide treatment liquid supply pipes. 411 may be connected at predetermined intervals.

The carbon dioxide treatment liquid injection nozzle may be provided in the carbon dioxide treatment liquid flow tube 412. Accordingly, the carbon dioxide treatment liquid of the carbon dioxide treatment liquid supply source such as the carbon dioxide treatment liquid storage tank 422 flows through the carbon dioxide treatment liquid supply pipe 411 and the carbon dioxide treatment liquid flow pipe 412 and through the carbon dioxide treatment liquid injection nozzle, 200 may be injected into the exhaust gas flowing inside.

On the other hand, a portion of the inside of the housing 200 before the carbon dioxide treatment liquid injection unit 410 in the flow direction of the exhaust gas may be provided with a porous plate (PP) as shown in FIG. Thereby, the particulate matter can also be removed while carbon dioxide is removed from the exhaust gas.

The carbon dioxide removal unit 400 may further include a carbon dioxide treatment liquid recovery unit 420. The carbon dioxide treatment liquid recovery unit 420 may recover the carbon dioxide treatment liquid injected into the housing 200. The carbon dioxide treatment liquid recovery unit 420 may include a carbon dioxide treatment liquid recovery pipe 421 and a carbon dioxide treatment liquid storage tank 422.

One side of the carbon dioxide treatment liquid recovery pipe 421 may be connected to the drain duct 230 of the housing 200. Accordingly, the carbon dioxide treatment liquid injected into the housing 200 may be discharged from the drain duct 230 and introduced into the carbon dioxide treatment liquid recovery pipe 421.

The other side of the carbon dioxide treatment liquid recovery pipe 421 may be connected to the carbon dioxide treatment liquid storage tank 422. Accordingly, the carbon dioxide treatment liquid introduced into the carbon dioxide treatment liquid recovery tube 421 may flow into the carbon dioxide treatment liquid recovery tube 421 and flow into the carbon dioxide treatment liquid storage tank 422.

The carbon dioxide treatment liquid recovery unit 420 may further include a carbon dioxide treatment liquid filtration unit 423. As illustrated in FIGS. 3 and 4, the carbon dioxide treatment liquid filtration unit 423 may be provided in the carbon dioxide treatment liquid recovery tube 421 to filter carbon dioxide treatment liquid from which carbon dioxide is removed from exhaust gas.

As a result, the carbon dioxide treatment liquid storage tank 422 may store the carbon dioxide treatment liquid filtered by the carbon dioxide treatment liquid filtration unit 423.

In this case, one side of the carbon dioxide treatment liquid supply pipe 411 of the carbon dioxide treatment liquid injection unit 410 may be connected to the carbon dioxide treatment liquid storage tank 422. The filtered carbon dioxide treatment liquid stored in the carbon dioxide treatment liquid storage tank 422 may be supplied to the carbon dioxide treatment liquid supply pipe 411. Accordingly, the carbon dioxide treatment liquid storage tank 422 may be a carbon dioxide treatment liquid supply source for supplying the carbon dioxide treatment liquid to the carbon dioxide treatment liquid supply pipe 411.

With this configuration, the carbon dioxide treatment liquid stored in the carbon dioxide treatment liquid storage tank 422 may be injected into the housing 200 by the carbon dioxide treatment liquid injection unit 410 to remove carbon dioxide from the exhaust gas. In addition, the carbon dioxide treatment liquid from which carbon dioxide is removed from the exhaust gas may be recovered, filtered, and then returned to the carbon dioxide treatment liquid storage tank 422 and injected again into the housing 200 by the carbon dioxide treatment liquid injection unit 410. That is, the carbon dioxide treatment liquid stored in the carbon dioxide treatment liquid storage tank 422 may be circulated between the housings 200. Thereby, the carbon dioxide treatment liquid can be saved.

On the other hand, the carbon dioxide treatment liquid storage tank 422 may drain some of the stored carbon dioxide treatment liquid periodically or intermittently. Thereby, the density | concentration of unnecessary ions contained in a carbon dioxide process liquid, such as sodium hydrogencarbonate ion and sodium carbonate ion, can be made into predetermined concentration or less, and the carbon dioxide removal efficiency of a carbon dioxide process liquid can be improved.

In addition, the carbon dioxide treatment liquid storage tank 422 may be periodically or intermittently supplied with a carbon dioxide treatment agent such as sodium hydroxide and water such that the carbon dioxide treatment liquid is above a predetermined pH suitable for carbon dioxide removal. Thereby, the carbon dioxide removal efficiency of a carbon dioxide process liquid can be improved.

As such, when the carbon dioxide treatment liquid and the carbon dioxide treatment liquid stored in the carbon dioxide treatment liquid storage tank 422 are at a predetermined pH or more suitable for carbon dioxide removal, the carbon dioxide treatment liquid and the carbon dioxide treatment liquid are formed and supplied separately. It does not have to include. Therefore, the configuration for supplying the carbon dioxide treatment liquid of a predetermined pH or more can be relatively simple.

As illustrated in FIG. 5, the carbon dioxide treating solution filtration unit 423 may include a cyclone filtration unit 423a and a foreign matter collection unit 423b.

The cyclone filtration unit 423a may be provided in the carbon dioxide treatment liquid recovery pipe 421. The cyclone filtration unit 423a may filter the carbon dioxide treatment liquid in a cyclone manner.

For example, the cyclone filtration unit 423a may be provided with an inlet IN and an outlet OT at an upper portion thereof, and a connector CN at the lower portion thereof, as shown in FIG. 5. In addition, the portion of the carbon dioxide treatment liquid recovery tube 421 on the housing 200 side is connected to the inlet IN, and the portion of the carbon dioxide treatment liquid recovery tube 421 on the carbon dioxide treatment liquid storage tank 422 is connected to the outlet ( OT). In addition, the carbon dioxide treatment liquid from which carbon dioxide is removed from the exhaust gas may flow into the cyclone filtration unit 423a through the inlet IN, and may rotate inside the cyclone filtration unit 423a. As a result, foreign substances such as relatively heavy particulate matter or carbonate may be separated from the carbon dioxide treatment liquid and moved downward to be discharged through the connector CN. In addition, the relatively light carbon dioxide treatment liquid from which foreign matters are removed may be discharged through the outlet OT. The filtered carbon dioxide treatment liquid discharged to the outlet OT may flow to the carbon dioxide treatment liquid storage tank 422 through the carbon dioxide treatment liquid recovery pipe 421.

The foreign matter collection unit 423b may be connected to the cyclone filtration unit 423a. The cyclone filtration unit 423a may collect foreign substances filtered from the carbon dioxide treatment liquid.

For example, the foreign matter collecting unit 423b may be connected to the connector CN of the cyclone filtration unit 423a, as shown in FIG. 5. In addition, the foreign matter removed from the carbon dioxide treatment liquid discharged through the connector CN of the cyclone filtration unit 423a may be collected in the foreign matter collection unit 423b. When the foreign matter is filled inside the foreign matter collecting unit 423b, by discarding the foreign matter collected in the foreign matter collecting unit 423b to the outside and emptying the inside of the foreign matter collecting unit 423b, the carbon dioxide treatment liquid inside the foreign matter collecting unit 423b. Foreign material removed from the material can be collected again.

In addition, the carbon dioxide treatment liquid filtration unit 423 may include a filtration unit body 423c and a filter member 423d, as shown in FIG. 6.

The filtration unit body 423c may be provided in the carbon dioxide treatment liquid recovery pipe 421.

For example, the filtration unit body 423c may have an inlet IN and an outlet OT, respectively, as shown in FIG. 6. In addition, a portion of the carbon dioxide treatment liquid recovery tube 421 on the housing 200 side is connected to the inlet IN, and a portion of the carbon dioxide treatment liquid recovery tube 421 on the side of the carbon dioxide treatment liquid storage tank 422 is an outlet (OT). ) Can be connected. The carbon dioxide treatment liquid from which carbon dioxide is removed from the exhaust gas may be introduced into the filtration unit body 423c through the inlet IN. In addition, the carbon dioxide treatment liquid filtered by the filter member 423d to be described later provided in the filtering unit body 423c may be discharged through the outlet OT. The filtered carbon dioxide treatment liquid discharged to the outlet OT may flow to the carbon dioxide treatment liquid storage tank 422 through the carbon dioxide treatment liquid recovery pipe 421.

The filter member 423d may be provided at the filtration unit body 423c. The filter member 423d may filter the carbon dioxide treatment liquid from which carbon dioxide is removed from the exhaust gas. The filter member 423d is not particularly limited, and any filter may be used as long as it can filter the carbon dioxide treatment liquid from which carbon dioxide is removed from the exhaust gas. The foreign matter filtered from the carbon dioxide treatment liquid is accumulated in the filter member 423d. If foreign matters accumulate in the filter member 423d to the extent that the carbon dioxide treatment liquid cannot be filtered, the filter member 423d cleans the filter member 423d and removes the foreign matter accumulated in the filter member 423d. The liquid can be filtered.

Second embodiment of the ship

Hereinafter, a second embodiment of a ship according to the present invention will be described with reference to FIGS. 7 to 10.

7 is a view showing a second embodiment of the ship according to the present invention, Figure 8 is an enlarged view of the portion where the exhaust gas treatment apparatus is installed in the second embodiment of the ship according to the present invention.

9 is a perspective view showing an exhaust gas treating apparatus of a second embodiment of a ship according to the present invention, excluding part of a carbon dioxide removing unit, and FIG. 10 is an exhaust gas treating apparatus of a second embodiment of a ship according to the present invention. In the drawings, all of including the carbon dioxide removal unit.

Here, the second embodiment of the ship according to the present invention is the combustion of the high sulfur oil as fuel in the first embodiment of the ship according to the present invention and the exhaust gas discharge device 30 described with reference to Figs. There is a difference in that sulfur oxides emit more exhaust gas than a predetermined treatment amount, and the exhaust gas treatment apparatus 100 removes sulfur oxides from the exhaust gas first and then removes carbon dioxide from the exhaust gas from which the sulfur oxides have been removed. .

Therefore, the following description will focus on the different configurations, and the rest of the configurations can be replaced with those described with reference to FIGS. 1 to 6.

In the exhaust gas discharging device 30 of the second embodiment of the ship 10 according to the present invention can be burned with high sulfur oil as fuel. Accordingly, the exhaust gas discharged from the exhaust gas discharge device 30 may have more sulfur oxide than a predetermined treatment reference amount. As a result, the exhaust gas treating apparatus 100 may first remove sulfur oxides from the exhaust gas and then remove carbon dioxide from the exhaust gas from which the sulfur oxides have been removed.

To this end, the exhaust gas treatment apparatus 100 may further include a sulfur oxide removal unit 300, in addition to the carbon dioxide removal unit 400, as shown in Figs. The sulfur oxide removal unit 300 may remove sulfur oxides from the exhaust gas flowing into the housing 200 from the exhaust gas discharge device 30.

The sulfur oxide removal unit 300 may be provided at least a part of the inside of the housing 200 before the carbon dioxide removal unit 400 in the flow direction of the exhaust gas. That is, at least a portion of the carbon dioxide removal unit 400 may be provided in a portion inside the housing 200 next to the sulfur oxide removal unit 300 in the flow direction of the exhaust gas. For example, as illustrated in FIGS. 9 and 10, the sulfur oxide removal unit 300 includes at least a portion of a lower portion of the housing 200 having the inflow duct 210, and the carbon dioxide removal unit 400 is discharged. At least a part may be provided inside the upper portion of the housing 200 having the duct 220.

The sulfur oxide removal unit 300 may remove sulfur oxides from the exhaust gas by injecting a sulfur oxide treatment liquid into the exhaust gas flowing into the housing 200. The sulfur oxide treatment liquid may be, for example, seawater or sodium hydroxide aqueous solution. However, the sulfur oxide treatment liquid is not particularly limited and may be any known solvent as long as it can be injected into the exhaust gas flowing into the housing 200 to remove the sulfur oxide from the exhaust gas.

The sulfur oxide removal unit 300 may include a pretreatment unit 310, a aftertreatment unit 320, and a packing 330.

The pretreatment unit 310 may pretreat the exhaust gas by injecting a sulfur oxide treatment liquid into the exhaust gas flowing into the housing 200 through the inlet duct 210. For example, the pretreatment unit 310 may inject a sulfur oxide treatment liquid into the exhaust gas to cool the exhaust gas below a predetermined sulfur oxide removal temperature, and remove a part of sulfur oxide and a part of particulate matter from the exhaust gas. To this end, the pretreatment unit 310, for example, as shown in Figures 9 and 10 may be provided with at least a portion of the inside of the housing 200 of the inlet duct 210 side.

The pretreatment unit 310 may include a pretreatment supply pipe 311, a pretreatment flow tube 312, and a pretreatment injection nozzle (not shown).

One side of the pretreatment supply pipe 311 may be connected to a sulfur oxide treatment liquid supply source (not shown). For example, one side of the pretreatment supply pipe 311 may be included in the aftertreatment unit 320 and connected to the aftertreatment supply pipe 321 which will be described later. However, one side of the pretreatment supply pipe 311 may be separately connected to a sulfur oxide treatment liquid supply source connected to the aftertreatment supply pipe 321, and a sulfur oxide treatment different from the sulfur oxide treatment liquid supply source connected to the post treatment supply pipe 321. It may also be connected to a liquid source.

The other side of the pretreatment supply pipe 311 may be provided at a portion inside the housing 200 before the packing 330 in the flow direction of the exhaust gas through the housing 200.

The pretreatment flow tube 312 may be connected to a portion of the pretreatment supply tube 311 provided inside the housing 200. For example, a pair of pretreatment flow pipes 312 may be connected to the pretreatment pipe 311 so as to face each other, and a plurality of pairs of pretreatment flow pipes 312 may be connected to the pretreatment supply pipes 311 at predetermined intervals.

The pretreatment injection nozzle may be provided in the pretreatment flow tube 312. Accordingly, the sulfur oxide treatment liquid of the sulfur oxide treatment liquid source flows through the pretreatment supply pipe 311 and the pretreatment flow tube 312 to be injected into the exhaust gas flowing into the housing 200 through the pretreatment injection nozzle. Can be.

In the aftertreatment unit 320, a sulfur oxide treatment liquid may be injected into the exhaust gas pretreated by the pretreatment unit 310 to posttreatment. For example, the aftertreatment unit 320 may remove sulfur oxide and particulate matter remaining in the exhaust gas by injecting a sulfur oxide treatment liquid into the exhaust gas pretreated by the pretreatment unit 310. To this end, the aftertreatment unit 320 may be provided at a portion inside the housing 200 next to the packing 330 in the exhaust gas flow direction, for example.

The aftertreatment unit 320 may include a post-treatment supply pipe 321, a post-treatment flow tube 322, and a post-treatment injection nozzle (not shown).

One side of the aftertreatment supply pipe 321 may be connected to a sulfur oxide treatment liquid supply source. In addition, the other side of the post-processing supply pipe 321 may be provided in a portion inside the housing 200 next to the packing 330 in the flow direction of the exhaust gas through the housing 200.

The aftertreatment flow tube 322 may be connected to a portion of the aftertreatment supply pipe 321 provided in the housing 200. For example, a pair of post-processing flow tubes 322 may be connected to the post-processing supply pipe 321 so as to face each other, and a plurality of pairs of post-processing flow tubes 322 may be connected to the post-processing supply tubes 321 at predetermined intervals.

The aftertreatment injection nozzle may be provided in the aftertreatment flow tube 322. Accordingly, the sulfur oxide treatment liquid of the sulfur oxide treatment liquid source flows through the after-treatment supply pipe 321 and the after-treatment flow tube 322 and is pretreated by the pretreatment unit 310 through the post-treatment injection nozzle, and then the housing ( 200 may be injected into the exhaust gas flowing inside.

The post-processing unit 320 may be a plurality.

The packing 330 may be provided at a portion inside the housing 200 between the pretreatment unit 310 and the aftertreatment unit 320. The packing 330 may increase the contact time and the contact area of the exhaust gas and the sulfur oxide treatment liquid. Accordingly, the sulfur oxide removal efficiency can be improved.

The packing 330 may include a plurality of holes (not shown) or a plurality of packing members (not shown) having a plurality of holes to increase the contact time and the contact area of the exhaust gas and the sulfur oxide treatment liquid. Can be.

Meanwhile, a portion of the housing 200 under the packing 330 may be provided with a mesh support member (not shown) to support the packing member of the packing 330. A portion of the interior of the housing 200 on the packing 330 may be provided with a porous plate PP as shown in FIGS. 9 and 10. Accordingly, the packing member of the packing 330 can support the vessel 10 so as not to be deflected to one side or the other side even if the vessel 10 is inclined to one side or the other side. In addition, a part of particulate matter may be removed from the exhaust gas by the porous plate PP.

The carbon dioxide removal unit 400 included in the exhaust gas treatment apparatus 100 of the second embodiment of the ship 10 according to the present invention removes carbon dioxide from the exhaust gas from which sulfur oxides are removed by the sulfur oxide removal unit 300. can do. To this end, the carbon dioxide removal unit 400 may be provided at least a part of the inside of the housing 200 next to the sulfur oxide removal unit 300 in the flow direction of the exhaust gas.

In the carbon dioxide removal unit 400, after the sulfur oxide is removed by the sulfur oxide removal unit 300, the carbon dioxide treatment liquid may be injected into the exhaust gas flowing in the housing 200 to remove carbon dioxide from the exhaust gas.

The carbon dioxide treatment liquid injected from the carbon dioxide removal unit 400 to the exhaust gas flowing inside the housing 200 is sulfur oxide treatment liquid injected from the sulfur oxide removal unit 300 into the exhaust gas flowing inside the housing 200. It may be different or the same.

For example, the sulfur oxide removal unit 300 may inject seawater into the exhaust gas flowing in the housing 200, and the carbon dioxide removal unit 400 may inject sodium hydroxide aqueous solution into the exhaust gas flowing in the housing 200. have. However, seawater may be injected into the exhaust gas flowing in the housing 200 in the sulfur oxide removal unit 300, and seawater may be injected in the exhaust gas flowing in the housing 200 in the carbon dioxide removal unit 400. In addition, in the sulfur oxide removal unit 300, the sodium hydroxide aqueous solution is injected into the exhaust gas flowing in the housing 200, and in the carbon dioxide removal unit 400, sodium hydroxide aqueous solution is injected into the exhaust gas flowing in the housing 200. It may be.

The carbon dioxide treatment liquid recovery unit 420 of the carbon dioxide removal unit 400 included in the exhaust gas treatment apparatus 100 of the second embodiment of the ship 10 according to the present invention is carbon dioxide as shown in Figs. The treatment liquid recovery member 424 may be further included.

The carbon dioxide treatment liquid recovery member 424 is a sulfur oxide treatment liquid in which the carbon dioxide treatment liquid injected from the carbon dioxide treatment liquid injection unit 410 into the housing 200 is injected from the sulfur oxide removal unit 300 into the housing 200. It may be provided inside the housing 200 to be collected without being mixed with.

The carbon dioxide treatment liquid recovery member 424 may include a treatment liquid collection member 424a, a treatment liquid guide member 424b, and a spaced connection member 424c.

The gas passage hole HL through which the exhaust gas passes may be formed in the processing liquid collecting member 424a. In addition, the treatment liquid collection member 424a may partition the inside of the housing 200 into a portion provided with the sulfur oxide removal unit 300 and a portion provided with the carbon dioxide removal unit 400. Accordingly, the exhaust gas from which the sulfur oxides are removed by the sulfur oxide removal unit 300 is inside the housing 200 provided with the carbon dioxide removal unit 400 through the gas passage hole HL of the treatment liquid collection member 424a. It can flow to the part of.

The processing liquid collecting member 424a may have a square pyramid shape, for example, as shown in FIGS. 9 and 10. However, the shape of the processing liquid collecting member 424a is not particularly limited, and a gas passage hole HL is formed and a portion in which the sulfur oxide removing unit 300 is provided inside the housing 200 and the carbon dioxide removing unit 400. Any shape may be used as long as it is a shape that can be partitioned into the portion to be provided.

The treatment liquid guide member 424b may induce the carbon dioxide treatment liquid to collect in the treatment liquid collection member 424a without being introduced into the gas passage hole HL. The processing liquid guide member 424b may be, for example, a conical shape having an empty inside, as shown in FIGS. 9 and 10. However, the shape of the processing liquid guide member 424b is not particularly limited, and any shape can be used so long as the carbon dioxide processing liquid can be induced to collect in the processing liquid collection member 424a without flowing into the gas passage hole HL. It is possible.

The space connecting member 424c may be connected to the processing liquid collection member 424a and the processing liquid inducing member 424b such that the processing liquid collection member 424a and the processing liquid inducing member 424b are spaced apart from each other. Accordingly, the exhaust gas passing through the gas passage hole HL of the treatment liquid collection member 424a is disposed between the treatment liquid collection member 424a and the treatment liquid guide member 424b. It may flow to a portion inside the housing 200.

In this case, the sulfur oxide treatment liquid injected from the sulfur oxide removal unit 300 may be drained through the drainage duct 230 of the housing 200. Accordingly, one side of the carbon dioxide treatment liquid recovery pipe 421 of the carbon dioxide treatment liquid recovery unit 420 is not connected to the drainage duct 230 of the housing 200, and as illustrated in FIGS. 9 and 10. It may be connected to a portion inside the housing 200 between the treatment liquid collection member 424a and the treatment liquid guide member 424b of the recovery member 424.

On the other hand, in the second embodiment of the vessel 10 according to the present invention by adjusting the carbon dioxide removal rate in the carbon dioxide removal unit 400 of the exhaust gas treatment apparatus 100 of the housing 200 of the exhaust gas treatment apparatus 100 By reducing the height and the like, the size of the housing 200 can be made smaller than a predetermined required size.

As described above, when the ship according to the present invention is used, carbon dioxide from the exhaust gas is discharged when the sulfur oxide emits less than a predetermined treatment amount by burning low sulfur oil as fuel in the exhaust gas discharge device provided in the ship. Can be removed.

The vessel described as above may not be limitedly applied to the configuration of the above-described embodiment, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made.

10: ship 20: hull
21: stack 22: residence
30: exhaust gas exhaust device 31: engine
31a: main engine 31b: power generation engine
32: boiler 100: exhaust gas treatment device
200: housing 210: inlet duct
220: discharge duct 230: drain duct
300: sulfur oxide removal unit 310: pretreatment unit
311: pretreatment supply pipe 312: pretreatment flow pipe
320: aftertreatment unit 321: aftertreatment supply pipe
322: post-processing flow tube 330: packing
400: carbon dioxide removal unit 410: carbon dioxide treatment liquid injection unit
411: carbon dioxide treatment liquid supply pipe 411a: pump
412: carbon dioxide treatment liquid flow tube 420: carbon dioxide treatment liquid recovery unit
421: carbon dioxide treatment liquid recovery tube 422: carbon dioxide treatment liquid storage tank 423: carbon dioxide treatment liquid filtration unit 423a: cyclone filter
423b: foreign material collection unit 423c: filtration unit body
423d: filter member 424: carbon dioxide treatment liquid recovery member
424a: treatment liquid collecting member 424b: treatment liquid inducing member
424c: Spacing connecting member PP: Perforated plate
PE: Exhaust Pipe VR: Flow Switching Valve
HL: Gas passage hole IN: Entrance
OT: Exit CN: End Connection

Claims (15)

hull;
An exhaust gas discharge device provided in the hull; And
An exhaust gas treating apparatus provided in the hull to process exhaust gas discharged from the exhaust gas exhausting apparatus; Including;
The exhaust gas discharge device is a low sulfur oil as a fuel is burned by the sulfur oxides discharge less than a predetermined treatment reference amount, the exhaust gas treatment device to remove carbon dioxide from the exhaust gas. The exhaust gas treatment apparatus of claim 1, wherein the exhaust gas treatment apparatus includes a housing connected to the exhaust gas discharge apparatus, and a carbon dioxide removal unit configured to remove carbon dioxide from the exhaust gas flowing into the housing from the exhaust gas discharge apparatus. Ship. The ship of claim 2, wherein the carbon dioxide removal unit injects a carbon dioxide treatment liquid into the exhaust gas flowing in the housing to remove carbon dioxide from the exhaust gas. The ship according to claim 3, wherein the carbon dioxide removal unit includes a carbon dioxide treatment liquid injection unit for injecting carbon dioxide treatment liquid into the exhaust gas flowing in the housing. The method of claim 4, wherein the carbon dioxide treatment liquid injection unit is provided with a carbon dioxide treatment liquid supply pipe, one side of which is connected to a carbon dioxide treatment liquid supply source and the other side penetrates through the housing, and at least a portion thereof is provided inside the housing. And a carbon dioxide treatment liquid flow pipe connected to a portion of the carbon dioxide treatment liquid supply pipe, and a carbon dioxide treatment liquid injection nozzle provided in the carbon dioxide treatment liquid flow pipe. The ship according to claim 4, wherein the carbon dioxide removal unit further includes a carbon dioxide treatment liquid recovery unit for recovering the carbon dioxide treatment liquid injected into the housing. The method of claim 6, wherein the carbon dioxide treatment liquid recovery unit is a carbon dioxide treatment liquid recovery tube connected to one side of the drain duct provided in the housing so that the carbon dioxide treatment liquid injected into the housing is drained, and the carbon dioxide treatment liquid recovery tube A vessel comprising a carbon dioxide treatment liquid storage tank is connected to the other side. The ship of claim 7, wherein the carbon dioxide treatment liquid recovery unit further includes a carbon dioxide treatment liquid filtration unit provided in the carbon dioxide treatment liquid recovery tube to filter a carbon dioxide treatment liquid from which carbon dioxide is removed from exhaust gas. The ship of claim 8, wherein the carbon dioxide treatment liquid storage tank is connected to one side of a carbon dioxide treatment liquid supply pipe included in the carbon dioxide treatment liquid injection unit and serves as a carbon dioxide treatment liquid supply source for supplying the carbon dioxide treatment liquid to the carbon dioxide treatment liquid supply pipe. . The ship according to claim 4, wherein a portion of the housing inside the carbon dioxide treatment liquid injection unit in the flow direction of the exhaust gas is provided with a porous plate to remove particulate matter while removing carbon dioxide from the exhaust gas. The ship of claim 2, wherein the housing is installed inside a stack provided in the hull. The ship of claim 11, wherein the housing has a rectangular cross section. The ship of claim 11, wherein at least a portion of the housing is formed by the stack. The ship according to claim 2, wherein the housing is provided with an inlet duct connected to the exhaust gas exhaust device and an exhaust duct for exhausting the treated exhaust gas. 15. The ship according to claim 14, wherein the portion of the housing inside the housing next to the inlet duct in the flow direction of the exhaust gas is provided with a perforated plate to evenly flow the exhaust gas introduced through the inlet duct.

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