Ships

Abstract

This reduces the scattering of droplets from the funnel, thus minimizing damage to the ship's aesthetic appearance. [Solution] The ship comprises a hull, an engine installed in the hull, an exhaust gas treatment device that extends vertically and allows exhaust gas discharged from the engine to flow from bottom to top, and is capable of supplying a treatment liquid to the exhaust gas, and an exhaust gas outlet pipe connected to the exhaust gas treatment device for discharging exhaust gas to the outside. The exhaust gas outlet pipe has a first pipe section extending upward from the exhaust gas treatment device, a second pipe section extending horizontally to the first side from the upper end of the first pipe section, and a third pipe section extending upward from the second pipe section at a position spaced horizontally to the first side from the first pipe section, and having an outlet at its upper end that opens upward in the vertical direction.

Description

Technical Field

[0001] The present disclosure relates to a ship.

Background Art

[0002] Patent Document 1 discloses a configuration in which washing water is sprayed onto exhaust gas introduced from an exhaust pipe to remove sulfur oxides and the like contained in the exhaust gas. In such a configuration, the droplets of the sprayed washing water capture sulfur oxides and the like in the exhaust gas, and fall downward by gravity and are recovered.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the configuration described in Patent Document 1, some of the droplets of the washing water that have captured sulfur oxides and the like may scatter into the atmosphere from the funnel along with the flow of the exhaust gas. Furthermore, it is assumed that some of such droplets adhere to the inner surface of the funnel, are colored by the exhaust gas, and then are released into the atmosphere. In this case, there is a possibility that the droplets adhere to the surfaces of various parts of the ship and damage the appearance of the ship.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a ship that suppresses the scattering of droplets from the funnel and suppresses damage to the appearance of the ship.

Means for Solving the Problems

[0006] To solve the above problems, the vessel according to this disclosure comprises a hull, an engine, an exhaust gas treatment device, and an exhaust gas outlet pipe. The engine is provided on the hull. The exhaust gas treatment device extends vertically, and the exhaust gas discharged from the engine flows from bottom to top. The exhaust gas treatment device is capable of supplying a treatment liquid to the exhaust gas. The exhaust gas outlet pipe is connected to the exhaust gas treatment device and discharges the exhaust gas to the outside. The exhaust gas outlet pipe has a first pipe section, a second pipe section, and a third pipe section. The first pipe section extends upward from the exhaust gas treatment device. The second pipe section extends horizontally to the first side from the upper end of the first pipe section. The third pipe section extends upward from the second pipe section at a position spaced horizontally from the first pipe section. The third pipe section has an outlet at its upper end that opens upward in the vertical direction. [Effects of the Invention]

[0007] According to the vessel described herein, it is possible to suppress the scattering of droplets from the funnel and minimize damage to the vessel's aesthetic appearance. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view of a vessel according to an embodiment of the present disclosure. [Figure 2] This figure shows a part of a funnel equipped with an exhaust gas outlet pipe, representing an exhaust gas treatment device for a ship according to the present disclosure. [Figure 3] This is a cross-sectional view of an exhaust gas outlet pipe according to an embodiment of the present disclosure. [Modes for carrying out the invention]

[0009] Hereinafter, a vessel according to the embodiment of this disclosure will be described with reference to Figures 1 to 3. (Overall configuration of the ship) As shown in Figure 1, the vessel 1 of this embodiment comprises a hull 2, an engine 8, an exhaust gas treatment device 20, and an exhaust gas outlet pipe 30. Note that the type of vessel 1 in this embodiment is not limited to a specific type of vessel. Examples of vessel types for vessel 1 include liquefied gas carriers, ferries, RORO ships, car carriers, passenger ships, etc.

[0010] (Hull structure) The hull 2 ​​has a pair of side panels 3A and 3B that form its outer shell, a bottom 4, and an upper deck 5. The side panels 3A and 3B each have a pair of side platings that form the port and starboard sides, respectively. The bottom 4 has bottom platings that connect these side panels 3A and 3B. The upper deck 5 is a full-length deck exposed to the outside, and a superstructure 6 containing living quarters is provided on this upper deck 5, for example, at the stern 2b. The position of the superstructure 6 is not limited to the stern 2b side. Also, a cylindrical funnel 7 is provided on the upper deck 5, extending upward from the upper deck 5.

[0011] Engine 8 is located within the hull 2. Engine 8 generates thermal energy by burning a fuel such as heavy oil, which contains more sulfur than the fuel used by the auxiliary engine 9 described later. An example of engine 8 is an internal combustion engine used as the main engine to propel the ship 1.

[0012] Furthermore, auxiliary equipment 9 is provided within the hull 2 ​​of this embodiment. The auxiliary equipment 9 uses low-sulfur fuel, which has a lower sulfur content than the fuel used by the engine 8. Examples of auxiliary equipment 9 include an internal combustion engine used in a power generation facility that supplies electricity to the ship, and a boiler that generates steam as a working fluid.

[0013] (Scrubber configuration) The exhaust gas treatment device 20 is, for example, a scrubber that washes the exhaust gas discharged from the engine 8 with seawater or fresh water. In this embodiment, the exhaust gas treatment device 20 is installed, for example, inside the funnel 7. However, the exhaust gas treatment device 20 can also be installed outside the funnel 7.

[0014] The exhaust gas treatment device 20 receives exhaust gas discharged from the engine 8 via the exhaust gas piping system 101. The exhaust gas discharged from the engine 8 flows from bottom to top through the exhaust gas piping system 101 to reach the exhaust gas treatment device 20. The exhaust gas treatment device 20 can also be supplied with seawater or fresh water as a treatment liquid from a treatment liquid supply source (not shown). The exhaust gas treatment device 20 removes nitrogen oxides, dust, and other particles contained in the exhaust gas by, for example, bringing the treatment liquid into gas-liquid contact with the exhaust gas discharged from the engine 8. The detailed configuration of the exhaust gas treatment device 20 is not limited in any way.

[0015] (Configuration of the exhaust gas outlet pipe) Figure 2 shows a portion of a funnel equipped with an exhaust gas treatment device and exhaust gas outlet pipe of a ship according to an embodiment of the present disclosure. Figure 3 is a cross-sectional view of the exhaust gas outlet pipe according to an embodiment of the present disclosure. As shown in Figures 2 and 3, the exhaust gas outlet pipe 30 is connected to the exhaust gas treatment device 20. The exhaust gas outlet pipe 30 discharges the exhaust gas that has passed through the exhaust gas treatment device 20 to the outside. The exhaust gas outlet pipe 30 has a first pipe section 31, a second pipe section 32, a third pipe section 33, a first droplet collection section 40, a second droplet collection section 50, a third droplet collection section 60, and a fourth droplet collection section 70.

[0016] The first pipe section 31, the second pipe section 32, and the third pipe section 33 define the flow path for exhaust gas after passing through the exhaust gas treatment device 20. Each of the first pipe section 31, the second pipe section 32, and the third pipe section 33 is cylindrical in shape. However, each of the first pipe section 31, the second pipe section 32, and the third pipe section 33 is not limited to being cylindrical as long as it can define the flow path for exhaust gas; for example, it may be a rectangular tube or other cylindrical shape.

[0017] (First pipe part) The first pipe section 31 extends upward from the exhaust gas treatment device 20 in the vertical direction Dv. In this embodiment, the first pipe section 31 has a constant diameter along its entire length in the vertical direction Dv. The upper end of the first pipe section 31 is connected to the second pipe section 32. The lower end of the first pipe section 31 is connected to the exhaust gas discharge pipe 21 at the upper end of the exhaust gas treatment device 20.

[0018] As shown in FIG. 3, in this embodiment, an elastic seal portion 25 for allowing thermal expansion of the exhaust gas discharge pipe 21 and the first pipe portion 31 is provided between the lower end of the first pipe portion 31 and the exhaust gas discharge pipe 21. The elastic seal portion 25 has a configuration in which an annular seal member 24 is sandwiched between a flange 31f formed at the lower end of the first pipe portion 31 and a holding fitting 23 attached above the upper end of the exhaust gas discharge pipe 21 as viewed in the vertical direction Dv. The holding fitting 23 is attached to the upper end of the exhaust gas discharge pipe 21 by, for example, bolts or the like.

[0019] (Second pipe portion) As shown in FIGS. 2 and 3, the second pipe portion 32 extends in the horizontal direction Dh. More specifically, the second pipe portion 32 extends from the upper end of the first pipe portion 31 toward the first side Dh1 in the horizontal direction Dh. The second pipe portion 32 of this embodiment has a constant diameter dimension over the entire length in the horizontal direction Dh. The upper end of the first pipe portion 31 in this embodiment is connected to the second pipe portion 32 at a position shifted to the first side Dh1 in the horizontal direction Dh with respect to the end portion 32s on the second side Dh2 in the horizontal direction Dh. Note that the upper end of the first pipe portion 31 may be connected to the second pipe portion 32 at the position of the end portion 32s on the second side Dh2 in the horizontal direction Dh. The end portion 32t on the first side Dh1 in the horizontal direction Dh of the second pipe portion 32 is connected to the third pipe portion 33. Here, in this embodiment, the horizontal direction Dh in which the second pipe portion 32 extends, for example, coincides with the fore-and-aft direction FA of the hull 2. Note that the horizontal direction Dh in which the second pipe portion 32 extends may be a direction different from the fore-and-aft direction FA of the hull 2.

[0020] (Third pipe portion) The third pipe portion 33 is provided at a position separated from the first pipe portion 31 on the first side Dh1 in the horizontal direction Dh. The third pipe portion 33 extends upward in the vertical direction Dv from the end portion 32t on the first side Dh1 in the horizontal direction Dh of the second pipe portion 32. In this embodiment, the third pipe portion 33 is provided, for example, at a position separated from the first pipe portion 31 on the stern 2b side in the fore-and-aft direction FA.

[0021] As shown in Figure 3, the third pipe section 33 has a pipe body 34, a reduced diameter section 35, and an outlet 36. The pipe body 34 is cylindrical in shape and has a constant inner diameter along the vertical direction Dv. The pipe body 34 extends downward from the end 32t of the first side Dh1 in the horizontal direction Dh of the second pipe section 32. The lower end of the pipe body 34 is closed by a bottom plate 38d. The third pipe section 33 is equipped with a bottomed drain receiving section 38 formed by closing the lower end of the pipe body 34 with the bottom plate 38d.

[0022] The reduced diameter section 35 is provided between the pipe body 34 and the outlet 36. The reduced diameter section 35 is formed below the outlet 36. The reduced diameter section 35 is tapered so that its inner diameter gradually decreases upward in the vertical direction Dv from the outlet 36. In this embodiment, a small-diameter pipe section 37 is provided between the upper end of the reduced diameter section 35 and the outlet 36. The small-diameter pipe section 37 has an inner diameter smaller than the inner diameter of the pipe body 34 and has a constant inner diameter over the vertical direction Dv.

[0023] The outlet 36 is formed at the upper end of the small-diameter pipe section 37 of the third pipe section 33 and opens upward in the vertical direction Dv.

[0024] (First droplet collection unit) The first droplet collection unit 40 is provided at the outlet 36. The first droplet collection unit 40 is capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33. The first droplet collection unit 40 integrally comprises a first cylindrical section 41 and a first plate-shaped section 42.

[0025] The first cylindrical portion 41 is provided at a distance from the inner circumference of the outlet 36 in the radial direction Dr. The first cylindrical portion 41 is provided concentrically with the inner circumference of the outlet 36 and is cylindrical in shape, extending in the vertical direction Dv. The lower end of the first cylindrical portion 41 is located below the upper end of the small diameter pipe portion 37. The first cylindrical portion 41 protrudes above the upper end of the small diameter pipe portion 37. The upper end of the first cylindrical portion 41 is located above the upper end of the small diameter pipe portion 37.

[0026] The first plate-shaped portion 42 extends from the upper end of the first cylindrical portion 41 outward in the radial direction Dr of the first cylindrical portion 41. The first plate-shaped portion 42 is provided at a distance Dv above the upper end of the small-diameter pipe portion 37 of the third pipe portion 33. The first plate-shaped portion 42 spreads outward in the radial direction Dr relative to the upper end of the small-diameter pipe portion 37.

[0027] Here, the third pipe section 33 is further provided with a bottom plate 44, a cylindrical wall 45, and a receiving groove 39. The bottom plate 44 extends radially outward from the outer surface of the small-diameter pipe section 37 in the direction Dr, at a position below the upper end of the small-diameter pipe section 37. The bottom plate 44 is formed in an annular shape when viewed from the vertical direction Dv. The cylindrical wall 45 rises upward from the outer edge of the bottom plate 44. The cylindrical wall 45 is formed in a cylindrical shape that extends in the vertical direction Dv.

[0028] The receiving groove 39 is formed in the area enclosed by the outer circumferential surface of the small-diameter pipe section 37, the bottom plate 44, and the cylindrical wall 45. The receiving groove 39 has an annular shape when viewed from the vertical direction Dv. The receiving groove 39 is provided with drain outlets 39d that penetrate the bottom plate 44 vertically. In this embodiment, the drain outlets 39d are provided at multiple locations spaced apart in the circumferential direction of the bottom plate 44. Drain piping (not shown) is connected to each drain outlet 39d.

[0029] (Second droplet collection unit) The second droplet collection section 50 is located in the middle of the third pipe section 33 in the vertical direction Dv. In other words, the first droplet collection section described above is located above the second droplet collection section 50. The second droplet collection section 50 is located below the first droplet collection section 40, the outlet 36, and the diameter reduction section 35. The second droplet collection section 50 is located on the inner circumferential surface of the pipe body 34. The second droplet collection section 50 is capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33. The second droplet collection section 50 integrally comprises a second plate-shaped section 51 and a second cylindrical section 52.

[0030] The second plate-like portion 51 extends inward in the radial direction Dr from the inner circumferential surface 33f of the third pipe-like portion 33. The second plate-like portion 51 is formed in an annular shape that extends circumferentially along the inner circumferential surface 33f of the third pipe-like portion 33 when viewed from the vertical direction Dv. In this embodiment, the second plate-like portion 51 is provided inclined diagonally downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. The second plate-like portion 51 has a through hole 53 that penetrates the second plate-like portion 51 in the vertical direction Dv at the end of the second side Dh2 in the horizontal direction Dh, that is, at the lowest part of the second plate-like portion 51.

[0031] The second cylindrical portion 52 rises upward from the inner circumferential edge of the second plate-shaped portion 51 in the vertical direction Dv. The second cylindrical portion 52 is provided at a distance from the inner circumferential surface 33f of the third pipe portion 33 in the radial direction Dr. In this embodiment, the second cylindrical portion 52 extends upward with respect to the vertical direction Dv and inclined toward the second side Dh2 of the horizontal direction Dh. The second cylindrical portion 52 may also be formed to extend in the vertical direction Dv.

[0032] (Third droplet collection unit) The third droplet collection section 60 is located in the middle of the third pipe section 33 in the vertical direction Dv. The third droplet collection section 60 is located on the inner circumferential surface of the pipe body 34. In this embodiment, the third droplet collection section 60 is located above the second pipe section 32 and below the second droplet collection section 50. The third droplet collection section 60 may also be located above the second droplet collection section 50. The third droplet collection section 60 is capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33. The third droplet collection section 60 is integrally provided with the third plate-shaped section 61 and the third cylindrical section 62.

[0033] The third plate-shaped portion 61 extends inward in the radial direction Dr from the inner circumferential surface 33f of the third pipe portion 33. The third plate-shaped portion 61 is formed in an annular shape that extends circumferentially along the inner circumferential surface 33f of the third pipe portion 33 when viewed from the vertical direction Dv. The third plate-shaped portion 61 is provided with an oblique downward inclination from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. The third plate-shaped portion 61 has a through hole 63 at the end of the second side Dh2 in the horizontal direction Dh, that is, at the lowest part of the third plate-shaped portion 61, which penetrates the second plate-shaped portion 51 in the vertical direction Dv.

[0034] The third cylindrical portion 62 is provided at a distance from the inner circumferential surface 33f of the third pipe portion 33 in the radial direction Dr. The third cylindrical portion 62 extends downward in the vertical direction Dv from the inner circumferential edge of the third plate portion 61. In this embodiment, the third cylindrical portion 62 extends downward with respect to the vertical direction Dv and inclined toward the first side Dh1 of the horizontal direction Dh. The third cylindrical portion 62 may also be formed to extend in the vertical direction Dv.

[0035] (Fourth droplet collection unit) The fourth droplet collection section 70 is provided at the lower part of the third pipe section 33 in the vertical direction Dv. In this embodiment, the fourth droplet collection section 70 is provided at a distance below the second droplet collection section 50 and the third droplet collection section 60 in the vertical direction Dv. At least the second side Dh2 end of the fourth droplet collection section 70 in the horizontal direction Dh is provided so as to be above the portion J2 where the first side Dh1 end 32t of the second pipe section 32 in the horizontal direction Dh is connected to the third pipe section 33. The fourth droplet collection section 70 integrally comprises a fourth plate-shaped section 71 and a fourth cylindrical section 72. The fourth droplet collection section 70 is capable of collecting droplets that flow down the inner circumferential surface 33f of the third pipe section 33.

[0036] The fourth plate-shaped portion 71 extends inward in the radial direction Dr from the inner circumferential surface 33f of the third pipe portion 33. The fourth plate-shaped portion 71 is formed in an annular shape that extends circumferentially along the inner circumferential surface 33f of the third pipe portion 33 when viewed from the vertical direction Dv. In this embodiment, the fourth plate-shaped portion 71 is provided inclined diagonally downward from the second side Dh2 to the first side Dh1 in the horizontal direction Dh. The fourth plate-shaped portion 71 has a through hole 73 that penetrates the fourth plate-shaped portion 71 in the vertical direction Dv at the end of the first side Dh1 in the horizontal direction Dh, that is, at the lowest part of the fourth plate-shaped portion 71.

[0037] The fourth cylindrical portion 72 rises upward from the inner circumferential edge of the fourth plate-shaped portion 71 in the vertical direction Dv. The fourth cylindrical portion 72 is provided at a distance of radial Dr inward from the inner circumferential surface 33f of the third pipe portion 33. In this embodiment, the fourth cylindrical portion 72 extends upward with respect to the vertical direction Dv and inclined toward the first side Dh1 of the horizontal direction Dh. The fourth cylindrical portion 72 may also be formed to extend in the vertical direction Dv.

[0038] The fourth droplet collection unit 70, having this configuration, is provided at an angle downward from above the portion J2 where the end 32t of the second pipe section 32 is connected to the third pipe section 33, toward the first side Dh1 in the horizontal direction Dh.

[0039] (slanted wall) The third pipe section 33 further comprises an inclined wall 80. The inclined wall 80 is located at the lowest point of the third pipe section 33 in the vertical direction Dv. The inclined wall 80 is located separately below the fourth droplet collection section 70. On the inner circumferential surface 33f of the third pipe section 33, the inclined wall 80 is inclined diagonally downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. The lower end of the inclined wall 80 is connected to the bottom plate 38d of the third pipe section 33. On the bottom plate 38d, a drain outlet 85 is provided on the second side Dh2 in the horizontal direction Dh relative to the lower end of the inclined wall 80, penetrating the bottom plate 38d in the vertical direction Dv.

[0040] As shown in Figure 2, it is preferable that at least a portion of the exhaust gas outlet pipe 30 in this configuration protrudes upward from the upper end of the funnel 7. By making the exhaust gas outlet pipe 30 protrude upward from the upper end of the funnel 7, the exhaust gas discharged from the outlet 36 can be directed to flow as far away from the funnel 7 as possible. The upper end of the funnel 7 is provided with a top plate 7p that closes the inside of the funnel 7. In this embodiment, the first pipe section 31, the second pipe section 32, and the third pipe section 33 of the exhaust gas outlet pipe 30 are all exposed to the outside of the funnel 7 above the top plate 7p. Furthermore, the exhaust gas outlet pipe 30 may be configured such that, for example, only the third pipe section 33 is exposed above the top plate 7p, while the first pipe section 31 and the second pipe section 32 are located below the top plate 7p.

[0041] Furthermore, an auxiliary exhaust pipe 102 for discharging exhaust gas from the auxiliary equipment 9 is provided inside the funnel 7.

[0042] As shown in Figure 3, in an exhaust gas outlet pipe 30 with this configuration, the exhaust gas that has passed through the exhaust gas treatment device 20 rises through the first pipe section 31 that extends upward from the exhaust gas treatment device 20. A portion of the exhaust gas rising within the first pipe section 31 collides with the upper part P1 of the inner surface of the second pipe section 32, which extends from the upper end of the first pipe section 31 to the first side Dh1 in the horizontal direction Dh. As a result, some of the droplets contained in the exhaust gas adhere to the upper part P1 of the inner surface of the second pipe section 32 and are collected.

[0043] The exhaust gas flowing from the first pipe section 31 into the second pipe section 32 flows through the second pipe section 32 towards the first side Dh1 in the horizontal direction Dh. A portion of the exhaust gas flowing through the second pipe section 32 collides with the opposing section P2 facing the second pipe section 32 at the first side Dh1 in the horizontal direction Dh on the inner circumferential surface 33f of the third pipe section 33, which extends upward from the second pipe section 32. As a result, some of the droplets contained in the exhaust gas adhere to the opposing section P2 on the inner circumferential surface 33f of the third pipe section 33. The droplets adhering to the opposing section P2 flow downward along the inner circumferential surface 33f and are collected in the drain receiving section 38 along the inclined wall 80. The droplets collected in the drain receiving section 38 are discharged through the drain outlet 85.

[0044] The exhaust gas flowing from the second pipe section 32 into the third pipe section 33 rises within the third pipe section 33. As the exhaust gas rising within the third pipe section 33 comes into contact with the inner circumferential surface 33f of the third pipe section 33, droplets are formed on the inner circumferential surface 33f of the third pipe section 33. Some of these droplets move upward due to the flow of exhaust gas, while others move downward due to gravity. Of the droplets moving along the inner circumferential surface 33f of the third pipe section 33, the droplets moving upward enter the space between the inner circumferential surface 33f of the third pipe section 33 and the third cylindrical section 62 in the third droplet collection section 60. Then, some of these droplets that have entered the space between the inner circumferential surface 33f of the third pipe section 33 and the third cylindrical section 62 adhere to the lower surface of the third plate-shaped section 61. Here, the third plate-like portion 61 is inclined diagonally downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. As a result, (some of) the droplets adhering to the lower surface of the third plate-like portion 61 flow along the lower surface of the third plate-like portion 61 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh due to gravity.

[0045] Furthermore, the exhaust gas that has passed through the inside of the third droplet collection section 60 rises along the inner circumferential surface 33f of the third pipe section 33 between the third droplet collection section 60 and the second droplet collection section 50. Between the third droplet collection section 60 and the second droplet collection section 50, some of the droplets adhering to the inner circumferential surface 33f of the third pipe section 33 flow down to the third droplet collection section 60 and flow along the upper surface of the third plate-shaped section 61 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. Since a through hole 63 is provided at the end of the second side Dh2 in the horizontal direction Dh of the third plate-shaped section 61, droplets that have flowed to the second side Dh2 in the horizontal direction Dh on the third plate-shaped section 61 are carried downward through the through hole 63.

[0046] The flow of exhaust gas, which rises further within the third pipe section 33 and passes through the second droplet collection section 50 towards the outlet 36, is narrowed at the diameter-reducing section 35. As a result, droplets contained in the exhaust gas flowing along the inner surface of the diameter-reducing section 35 are more likely to adhere to the inner surface of the diameter-reducing section 35. Some of the droplets adhering to the inner surface of the diameter-reducing section 35, and some of the droplets adhering to the inner surface 33f of the third pipe section 33 between the second droplet collection section 50 and the diameter-reducing section 35, flow down along the inner surface 33f due to gravity. The droplets flowing down along the inner surface 33f are collected in a groove-like section surrounded by the second plate-shaped section 51 and the second cylindrical section 52 of the second droplet collection section 50 and the inner surface 33f of the third pipe section 33.

[0047] Since the second plate-shaped portion 51 is provided at an angle downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh, droplets collected in the groove-shaped portion surrounded by the second plate-shaped portion 51, the second cylindrical portion 52, and the inner circumferential surface 33f of the third pipe portion 33 of the second droplet collection portion 50 flow on the second plate-shaped portion 51 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. Since a through hole 53 is provided at the end of the second side Dh2 in the horizontal direction Dh of the second plate-shaped portion 51, droplets that have flowed on the second plate-shaped portion 51 to the second side Dh2 in the horizontal direction Dh flow down through the through hole 53 along the inner circumferential surface 33f of the third pipe portion 33.

[0048] Of the droplets formed on the inner circumferential surface of the reduced diameter section 35, and the droplets formed on the inner circumferential surface 33f of the third pipe section 33 between the second droplet collection section 50 and the reduced diameter section 35, those droplets that are pushed upward by the exhaust gas enter the space between the inner circumferential edge of the outlet 36 and the first cylindrical section 41 in the first droplet collection section 40. These entered droplets then adhere to the first plate-shaped section 42. Furthermore, the droplets that come into contact with the first plate-shaped section 42 are pushed radially outward by the exhaust gas and fall due to gravity. The fallen droplets are then collected by the receiving groove 39. The collected droplets are then collected through the drain outlet 39d.

[0049] On the other hand, droplets that flow down along the inner circumferential surface 33f of the third pipe section 33, which is above the fourth droplet collection section 70, are collected in the fourth droplet collection section 70. The fourth droplet collection section 70 is installed from above the part J2 where the end 32t of the second pipe section 32 is connected to the third pipe section 33, and is inclined diagonally downward toward the first side Dh1 in the horizontal direction Dh. Therefore, droplets collected by the fourth droplet collection section 70 flow down toward the first side Dh1 in the horizontal direction Dh, and through the through hole 73 to the lower side of the fourth droplet collection section 70. Below the fourth droplet collection section 70, droplets that flow down along the inner circumferential surface 33f of the third pipe section 33 are collected in the drain receiving section 38 along the inclined wall 80.

[0050] (Effects and Benefits) In the vessel 1 of the above embodiment, sulfur and other components contained in the exhaust gas are recovered by supplying a treatment liquid to the exhaust gas from the engine 8 using the exhaust gas treatment device 20. The exhaust gas that has passed through the exhaust gas treatment device 20 is discharged to the outside through the exhaust gas outlet pipe 30. The exhaust gas outlet pipe 30 has a first pipe section 31, a second pipe section 32, and a third pipe section 33. The exhaust gas that has passed through the exhaust gas treatment device 20 rises through the first pipe section 31 which extends upward from the exhaust gas treatment device 20, and collides with the upper part P1 of the inner circumferential surface of the second pipe section 32 which extends from the upper end of the first pipe section 31 to the first side Dh1 in the horizontal direction Dh. As a result, some of the droplets contained in the exhaust gas adhere to the upper part P1 of the inner circumferential surface of the second pipe section 32 and are recovered. The exhaust gas flowing from the first pipe section 31 to the second pipe section 32 flows through the second pipe section 32 on the first side Dh1 in the horizontal direction Dh, and on the inner circumferential surface 33f of the third pipe section 33, which extends upward from the second pipe section 32, it collides with the opposing part P2 facing it inside the second pipe section 32 on the first side Dh1 in the horizontal direction Dh. As a result, some of the droplets contained in the exhaust gas adhere to the opposing part P2 on the inner circumferential surface 33f of the third pipe section 33 and are collected. The exhaust gas flowing from the second pipe section 32 to the third pipe section 33 rises upward within the third pipe section 33 and is released into the atmosphere from the outlet 36. In this way, by collecting some of the droplets contained in the exhaust gas by having them adhere to the inner circumferential surface of the second pipe section 32 and the inner circumferential surface 33f of the third pipe section 33, the amount of droplets contained in the exhaust gas released into the atmosphere from the outlet 36 can be reduced. Therefore, the scattering of droplets from the funnel 7 is suppressed, and the contamination of the hull 2 ​​by droplets scattered from the funnel 7, which would impair the aesthetic appearance of the ship 1, is suppressed.

[0051] Furthermore, in the above embodiment, the third pipe section 33 has a diameter-reducing section 35 below the outlet 36. With this configuration, droplets contained in the exhaust gas passing through the third pipe section 33 toward the outlet 36 are more likely to adhere to the inner surface of the diameter-reducing section 35. This allows for efficient recovery of droplets contained in the exhaust gas. In addition, because the flow velocity of the exhaust gas increases in the diameter-reducing section 35, the exhaust gas can be discharged forcefully from the outlet 36, and even if droplets remain in the exhaust gas, the droplets can be propelled further away from the outlet 36. Therefore, it is possible to suppress droplets from adhering to the hull 2 ​​of the ship 1.

[0052] Furthermore, in the above embodiment, a first droplet collection unit 40 is provided at the outlet 36 of the third pipe section 33. Therefore, of the droplets adhering to the inner circumferential surface 33f of the third pipe section 33, a portion of the droplets that are pushed upward by the exhaust gas discharged from the outlet 36 can be collected by the first droplet collection unit 40. In the first droplet collection unit 40, droplets can be drawn between the inner circumferential edge of the outlet 36 and the first cylindrical section 41, which is provided at a distance from the inner edge in the radial direction Dr, and then attached to the first plate-shaped section 42 for collection. Therefore, even more droplets contained in the exhaust gas can be collected.

[0053] Furthermore, in the above embodiment, a receiving groove 39 is provided on the outside of the discharge port 36 in the radial direction Dr. Therefore, when a droplet attached to the first plate-like portion 42 falls due to its own weight, the fallen droplet can be received and collected by the receiving groove 39.

[0054] Furthermore, in the above embodiment, a second droplet collection section 50 is provided in the middle of the third pipe section 33 in the vertical direction Dv. For example, when droplets contained in exhaust gas flowing from the second pipe section 32 into the third pipe section 33 and rising inside the third pipe section 33 adhere to the inner circumferential surface 33f of the third pipe section 33, some of these droplets flow down along the inner circumferential surface 33f of the third pipe section 33. Therefore, droplets flowing down along the inner circumferential surface 33f of the third pipe section 33 can be collected in the groove-shaped portion surrounded by the second plate-shaped portion 51, the second cylindrical portion 52 of the second droplet collection section 50, and the inner circumferential surface 33f of the third pipe section 33.

[0055] Furthermore, in the above embodiment, the second plate-shaped portion 51 is provided at an angle downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. Therefore, droplets collected in the groove-shaped portion surrounded by the second plate-shaped portion 51, the second cylindrical portion 52, and the inner circumferential surface 33f of the third pipe portion 33 of the second droplet collection portion 50 can be moved on the second plate-shaped portion 51 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh by their own weight. In addition, since a through hole 53 is provided at the end of the second side Dh2 in the horizontal direction Dh of the second plate-shaped portion 51, droplets that have moved on the second side Dh2 in the horizontal direction Dh on the second plate-shaped portion 51 can be discharged downward through the through hole 53.

[0056] Furthermore, in the above embodiment, a third droplet collection section 60 is provided in the middle of the third pipe section 33 in the vertical direction Dv. For example, droplets adhere to the inner circumferential surface 33f of the third pipe section 33 as liquid flows from the second pipe section 32 into the third pipe section 33. Of these droplets, those moving upward can be made to enter the space between the inner circumferential surface 33f of the third pipe section 33 and the third cylindrical section 62 of the third droplet collection section 60. Then, a portion of these droplets can adhere to the third plate-shaped section 61 and flow down along the inner circumferential surface 33f of the third pipe section 33. Therefore, a portion of the droplets can be collected by the third droplet collection section 60.

[0057] Furthermore, in the above embodiment, since the third plate-shaped portion 61 is inclined diagonally downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh, droplets adhering to the lower surface of the third plate-shaped portion 61 can be moved along the lower surface of the third plate-shaped portion 61 by gravity. On the other hand, droplets (part of them) that adhere to the inner circumferential surface 33f of the third pipe portion 33 above the third plate-shaped portion 61 and flow down can be moved from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. And, since a through hole 63 is provided at the end of the second side Dh2 in the horizontal direction Dh of the third plate-shaped portion 61, droplets that have flowed on the third plate-shaped portion 61 to the second side Dh2 in the horizontal direction Dh can be allowed to flow downward through the through hole 63.

[0058] Furthermore, in the above embodiment, a fourth droplet collection section 70 is provided, inclined diagonally downward toward the first side Dh1 in the horizontal direction Dh, from the portion where the end of the first side Dh1 in the horizontal direction Dh of the second pipe section 32 is connected to the third pipe section 33. Therefore, in the third pipe section 33, droplets that have flowed down along the inner circumferential surface 33f of the third pipe section 33 above the portion where the end of the first side Dh1 in the horizontal direction Dh of the second pipe section 32 is connected can be collected by the fourth droplet collection section. In addition, droplets collected in the fourth droplet collection section 70 can be moved by their own weight toward the first side Dh1 in the horizontal direction Dh, and guided to the bottom of the third pipe section 33 for collection.

[0059] Furthermore, in the above embodiment, since the third pipe section 33 is provided with a drain receiving section 38, it is possible to collect the drain containing droplets that have flowed down along the inner circumferential surface 33f of the third pipe section 33.

[0060] (Other embodiments) Although embodiments of this disclosure have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments and may include design changes and the like that do not depart from the gist of this disclosure.

[0061] In the above embodiment, the case in which the third droplet collection unit 60 is positioned below the second droplet collection unit 50 has been described, but the positions of the second droplet collection unit 50 and the third droplet collection unit 60 may be swapped in the vertical direction Dv. Furthermore, in the above embodiment, the case in which one second droplet collection unit 50, one third droplet collection unit 60, and one fourth droplet collection unit 70 are provided is illustrated, but multiple sets of the second droplet collection unit 50, the third droplet collection unit 60, and the fourth droplet collection unit 70 may be provided with intervals in the vertical direction Dv.

[0062] Furthermore, although the above embodiment was described using the case in which a second droplet collection unit 50, a third droplet collection unit 60, and a fourth droplet collection unit 70 are provided as an example, it is also possible to omit at least one of the droplet collection devices among the second droplet collection unit 50, the third droplet collection unit 60, and the fourth droplet collection unit 70. Furthermore, in the above embodiment, the exhaust gas treatment device 20 is configured to desulfurize the exhaust gas, but the exhaust gas treatment device 20 may also be configured to wash away unwanted components and impurities from the exhaust gas, rather than being limited to desulfurization.

[0063] <Note> The vessel 1 described in the embodiment can be understood, for example, as follows:

[0064] (1) The vessel 1 according to the first embodiment comprises a hull 2, an engine 8 provided in the hull 2, an exhaust gas treatment device 20 extending in the vertical direction Dv, through which exhaust gas discharged from the engine 8 flows from bottom to top and which is capable of supplying a treatment liquid to the exhaust gas, and an exhaust gas outlet pipe 30 connected to the exhaust gas treatment device 20 for discharging the exhaust gas to the outside, The exhaust gas outlet pipe 30 comprises a first pipe section 31 extending upward from the exhaust gas treatment device 20, a second pipe section 32 extending from the upper end of the first pipe section 31 to the first side Dh1 in the horizontal direction Dh, and a third pipe section 33 extending upward from the second pipe section 32 at a position spaced apart from the first pipe section 31 to the first side Dh1 in the horizontal direction Dh, and having an outlet 36 at its upper end that opens upward in the vertical direction Dv.

[0065] As a result, some of the droplets contained in the exhaust gas adhere to the upper part P1 of the inner circumferential surface of the second pipe section 32 and are collected. The exhaust gas that flows from the first pipe section 31 to the second pipe section 32 flows through the second pipe section 32 on the first side Dh1 in the horizontal direction Dh, and on the inner circumferential surface 33f of the third pipe section 33 which extends upward from the second pipe section 32, it collides with the opposing part P2 facing the second pipe section 32 on the first side Dh1 in the horizontal direction Dh. As a result, small droplets contained in the exhaust gas also adhere to the opposing part P2 of the inner circumferential surface 33f of the third pipe section 33 and are collected. The exhaust gas that flows from the second pipe section 32 to the third pipe section 33 rises upward through the third pipe section 33 and is released into the atmosphere from the outlet 36. In this way, by collecting some of the droplets contained in the exhaust gas by adhering them to the inner circumferential surface 32f of the second pipe section 32 and the inner circumferential surface 33f of the third pipe section 33, the amount of droplets contained in the exhaust gas released into the atmosphere from the outlet 36 can be reduced. Therefore, the scattering of droplets from the funnel 7 is suppressed, and the aesthetic appearance of the ship 1 is minimized.

[0066] (2) The vessel 1 according to the second embodiment is the vessel 1 of (1), wherein the third pipe section 33 has a reduced diameter section 35 below the discharge port 36, the inner diameter of which decreases from below to above in the vertical direction Dv.

[0067] With this configuration, droplets contained in the exhaust gas passing through the third pipe section 33 toward the outlet 36 are more likely to adhere to the inner circumferential surface 33f of the diameter-reducing section 35. This allows for efficient recovery of droplets contained in the exhaust gas. Furthermore, because the flow velocity of the exhaust gas increases in the diameter-reducing section 35, the exhaust gas can be discharged forcefully from the outlet 36, and even if droplets remain in the exhaust gas, they can be propelled further away from the outlet 36. Therefore, it is possible to suppress droplets from adhering to the ship 1.

[0068] (3) The vessel 1 according to the third embodiment is the vessel 1 of (1) or (2), further comprising a first droplet collection unit 40 provided at the outlet 36 of the third pipe section 33 and capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33, the first droplet collection unit 40 comprising a first cylindrical portion 41 provided at a distance from the inner edge of the outlet 36 in the radial direction Dr, and a first plate-shaped portion 42 extending outward from the upper end of the first cylindrical portion 41 in the radial direction Dr, and provided at a distance above the upper end of the third pipe section 33 in the vertical direction Dv.

[0069] With this configuration, a portion of the droplets contained in the exhaust gas discharged from the outlet 36 can be recovered by the first droplet recovery unit 40. In the first droplet recovery unit 40, droplets moving upward along the inner circumferential surface 33f can enter between the inner edge of the outlet 36 and the first cylindrical portion 41, which is provided at a distance from it in the radial direction Dr. The droplets can then be collected by adhering them to the first plate-shaped portion 42. In this way, even more droplets contained in the exhaust gas can be recovered.

[0070] (4) The vessel 1 according to the fourth embodiment is the vessel 1 of (3), wherein the third pipe section 33 has a receiving groove 39 on the outside of the radial Dr of the outlet 36 to receive droplets falling from the first plate-shaped section 42.

[0071] With this configuration, since a receiving groove 39 is provided on the radially outer side of the discharge port 36, if droplets attached to the first plate-shaped portion 42 fall due to their own weight, the fallen droplets can be received and collected by the receiving groove 39.

[0072] (5) The vessel 1 according to the fifth embodiment is any one of the vessels 1 of (1) to (4), further comprising a second droplet collection section 50 provided in the middle of the third pipe section 33 in the vertical direction Dv, which is capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33, the second droplet collection section 50 comprising an annular second plate-shaped section 51 extending inward from the inner circumferential surface 33f of the third pipe section 33 in the radial direction Dr and extending circumferentially along the inner circumferential surface 33f of the third pipe section 33 when viewed from the vertical direction Dv, and a second cylindrical section 52 rising above the vertical direction Dv from the inner circumferential edge of the second plate-shaped section 51 at a distance inward from the inner circumferential surface 33f of the third pipe section 33 in the radial direction Dr.

[0073] With this configuration, when droplets contained in the exhaust gas flowing from the second pipe section 32 into the third pipe section 33 and rising within the third pipe section 33 adhere to the inner circumferential surface 33f of the third pipe section 33, the attached droplets flow down along the inner circumferential surface 33f of the third pipe section 33. In this way, the droplets flowing down along the inner circumferential surface 33f of the third pipe section 33 can be collected in the groove-shaped portion surrounded by the second plate-shaped portion 51 of the second droplet collection section 50, the second cylindrical portion 52, and the inner circumferential surface 33f of the third pipe section 33.

[0074] (6) The vessel 1 according to the sixth embodiment is the vessel 1 of (5), wherein the second plate-shaped portion 51 is provided at an angle downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh, and the end of the second side Dh2 in the horizontal direction Dh has a through hole 53 that penetrates the second plate-shaped portion 51 in the vertical direction Dv.

[0075] With this configuration, droplets collected in the groove-shaped portion surrounded by the second plate-shaped portion 51, the second cylindrical portion 52, and the inner circumferential surface 33f of the third tube portion 33 of the second droplet collection section 50 can be moved on the second plate-shaped portion 51 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. Furthermore, since a through hole 53 is provided at the end of the second side Dh2 in the horizontal direction Dh of the second plate-shaped portion 51, droplets that have moved on the second side Dh2 in the horizontal direction Dh of the second plate-shaped portion 51 can be discharged downward through the through hole 53.

[0076] (7) The vessel 1 according to the seventh embodiment is any one of the vessels 1 of (1) to (6), further comprising a third droplet collection section 60 provided in the middle of the third pipe section 33 in the vertical direction Dv, and capable of collecting droplets adhering to the inner circumferential surface 33f of the third pipe section 33, the third droplet collection section 60 comprising an annular third plate-shaped section 61 extending inward from the inner circumferential surface 33f of the third pipe section 33 in the radial direction Dr and extending circumferentially along the inner circumferential surface 33f of the third pipe section 33 when viewed from the vertical direction Dv, and a third cylindrical section 62 extending downward from the inner circumferential edge of the third plate-shaped section 61 at a distance inward from the inner circumferential surface 33f of the third pipe section 33 in the radial direction Dr and below the vertical direction Dv.

[0077] With this configuration, as the exhaust gas flowing from the second pipe section 32 into the third pipe section 33 rises within the third pipe section 33, droplets adhere to the inner circumferential surface 33f of the third pipe section 33. Some of these droplets, pushed upward by the exhaust gas rising along the third pipe section 33, enter the space between the inner circumferential surface 33f of the third pipe section 33 and the third cylindrical section 62 of the third droplet collection unit 60. Some of these trapped droplets then adhere to the third plate-shaped section 61. Some of the droplets adhering to the third plate-shaped section 61 flow down along the inner circumferential surface 33f of the third pipe section 33. Also, some of the droplets adhering to the third plate-shaped section 61 flow down along the third cylindrical section 62 and fall from the lower end of the third cylindrical section 62 into the third pipe section 33. In this way, some of the droplets contained in the exhaust gas are collected by the third droplet collection unit 60.

[0078] (8) The vessel 1 according to the eighth embodiment is the vessel 1 of (7), wherein the third plate-shaped portion 61 is provided inclined diagonally downward from the first side Dh1 to the second side Dh2 in the horizontal direction Dh, and the end of the second side Dh2 in the horizontal direction Dh has a through hole 63 that penetrates the third plate-shaped portion 61 in the vertical direction Dv.

[0079] With this configuration, droplets adhering to the lower surface of the third plate-shaped portion 61 can be moved along the lower surface of the third plate-shaped portion 61 from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. In addition, droplets adhering to the inner circumferential surface 33f of the third pipe-shaped portion 33 above the third plate-shaped portion 61 and flowing down can be moved on the third plate-shaped portion 61 by gravity from the first side Dh1 to the second side Dh2 in the horizontal direction Dh. Furthermore, since a through hole 63 is provided at the end of the second side Dh2 in the horizontal direction Dh of the third plate-shaped portion 61, droplets that have flowed on the third plate-shaped portion 61 to the second side Dh2 in the horizontal direction Dh can be allowed to flow downward through the through hole 63.

[0080] (9) The vessel 1 according to the ninth embodiment is any one of the vessels 1 from (1) to (8), further comprising a fourth droplet collection section 70 capable of collecting droplets that have flowed down along the inner circumferential surface 33f of the third pipe section 33, wherein the fourth droplet collection section 70 is provided at an angle downward toward the first side Dh1 in the horizontal direction Dh from the portion where the end of the first side Dh1 in the horizontal direction Dh of the second pipe section 32 is connected to the third pipe section 33.

[0081] With this configuration, in the third pipe section 33, droplets that have flowed down along the inner circumferential surface 33f of the third pipe section 33 above the portion where the end of the first side Dh1 in the horizontal direction Dh of the second pipe section 32 is connected can be collected by the fourth droplet collection section 70. Furthermore, the droplets collected by the fourth droplet collection section 70 can be moved by their own weight toward the first side Dh1 in the horizontal direction Dh and guided to the bottom of the third pipe section 33 for collection.

[0082] (10) The vessel 1 according to the tenth embodiment is any one of the vessels 1 from (1) to (9), wherein the third pipe section 33 further comprises a drain receiving section 38 that extends below the end of the first side Dh1 in the horizontal direction Dh of the second pipe section 32.

[0083] With this configuration, since the third pipe section 33 is provided with a drain receiving section 38, the drain containing droplets that have flowed down along the inner circumferential surface 33f of the third pipe section 33 can be collected. [Explanation of Symbols]

[0084] 1 ship 2 hull 7 Funnel 8 engines 20 Exhaust gas treatment equipment 30 Exhaust gas outlet pipe 31 First pipe section 32 Second pipe section 32s end 32t end 33 Third pipe section 33f Inner surface 35 Reduced diameter part 36 Outlet 38 Drain receiving section 39 Receiving groove 40 First droplet collection unit 41 First cylindrical part 42 First plate-like portion 50 Second droplet collection unit 51 Second plate-like part 52 Second cylindrical part 53 Through hole 60 Third droplet collection unit 61 Third plate-like part 62 Third cylindrical part 63 Through hole 70 Fourth droplet collection unit

Claims

1. The hull and, The engine installed on the aforementioned hull, An exhaust gas treatment device is provided which exhaust gas extending vertically and discharged from the engine flows from bottom to top, and which is capable of supplying a treatment liquid to the exhaust gas, An exhaust gas outlet pipe connected to the exhaust gas treatment device for discharging the exhaust gas to the outside, Equipped with, The aforementioned exhaust gas outlet pipe is The first pipe section extending upward from the exhaust gas treatment device, A second pipe section extending horizontally to the first side from the upper end of the first pipe section, A third pipe section extends upward from the second pipe section at a position spaced horizontally from the first pipe section, and has an outlet at its upper end that opens upward in the vertical direction, A ship.

2. The third pipe section has a reduced diameter section below the outlet, where the inner diameter decreases from the bottom to the top in the vertical direction. The vessel according to claim 1.

3. The third pipe section is further provided with a first droplet collection unit, which is located at the outlet of the third pipe section and is capable of collecting droplets adhering to the inner circumferential surface of the third pipe section. The first droplet collection unit is, A first cylindrical portion is provided at intervals on the radially inner side of the inner periphery of the aforementioned outlet, The device comprises: a first plate-shaped portion extending radially outward from the upper end of the first cylindrical portion and provided at a distance above the upper end of the third pipe portion in the vertical direction. The vessel according to claim 1 or 2.

4. The third pipe section has a receiving groove on the radially outer side of the outlet to receive droplets falling from the first plate-shaped section. The vessel according to claim 3.

5. The third pipe section is further provided in the middle of the vertical direction and is capable of collecting droplets adhering to the inner circumferential surface of the third pipe section, The second droplet collection unit is, An annular second plate-like portion extends radially inward from the inner circumferential surface of the third pipe portion, and extends circumferentially along the inner circumferential surface of the third pipe portion when viewed from the vertical direction, The device comprises a second cylindrical portion that rises upward in the vertical direction from the inner peripheral edge of the second plate-shaped portion, with a gap inward in the radial direction relative to the inner peripheral surface of the third pipe-shaped portion. The vessel according to claim 1 or 2.

6. The second plate-like portion is provided at an angle downward from the first side to the second side in the horizontal direction, and has a through hole at the end of the second side in the horizontal direction that penetrates the second plate-like portion in the vertical direction. The vessel according to claim 5.

7. The third pipe section is further provided in the middle of the vertical direction and is capable of collecting droplets adhering to the inner circumferential surface of the third pipe section, The third droplet collection unit is, An annular third plate-shaped portion extends radially inward from the inner circumferential surface of the third pipe portion, and extends circumferentially along the inner circumferential surface of the third pipe portion when viewed from the vertical direction, The third cylindrical portion extends downward in the vertical direction from the inner peripheral edge of the third plate-shaped portion, with a distance between it and the inner peripheral surface of the third pipe-shaped portion in the radial direction. The vessel according to claim 1 or 2.

8. The third plate-like portion is provided at an angle downward from the first side to the second side in the horizontal direction, and has a through hole at the end of the second side in the horizontal direction that penetrates the third plate-like portion in the vertical direction. The vessel according to claim 7.

9. The system further comprises a fourth droplet collection unit capable of collecting droplets that have flowed down the inner surface of the third pipe section, The fourth droplet collection unit is provided at an angle downward toward the first side in the horizontal direction from the portion where the first horizontal end of the second pipe is connected to the third pipe. The vessel according to claim 1 or 2.

10. The aforementioned third pipe section is, The second pipe section further comprises a drain receiving portion that extends downward from the first horizontal end of the second pipe section. The vessel according to claim 1 or 2.

11. The ship further comprises a cylindrical funnel extending upward from the aforementioned hull, The exhaust gas treatment device is housed within the funnel, At least a portion of the exhaust gas outlet pipe is provided so as to protrude upward from the upper end of the funnel. The vessel according to claim 1 or 2.

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