Ship

Abstract

To aim for effective use of the space in a hull and to improve a degree of freedom in design.SOLUTION: A ship comprises an engine room which is provided in a hull and in which an engine is accommodated, a lower vehicle deck forming a ceiling of the engine room, an upper vehicle deck provided above the lower vehicle deck, a first casing installed between the upper vehicle deck provided just above the lower vehicle deck and the lower vehicle deck, and forming the space to pull out a piston in communication with the engine room, and a second casing extending upward on the upper vehicle deck from the lower vehicle deck at the position different from the first casing in plan view, and forming a pipe insertion space which guides the exhaust pipe flowing the engine exhaust gas above the upper vehicle deck.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a ship.

Background Art

[0002] Patent Document 1 discloses a configuration including a casing (also referred to as an engine casing) through which an exhaust gas pipe connected to an engine or the like is inserted, provided on the upper side of a deck provided above an engine room where a main engine is disposed. In this configuration, the casings are arranged on both sides in the ship width direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when performing maintenance on an engine provided in an engine room, for example, the piston of the engine may be pulled out upward. Therefore, it is necessary to secure a space for performing work for pulling out the piston above the engine in the engine room. In particular, when the engine is a low-speed type, the piston is large, and the space secured above the engine becomes large. For this reason, it may be considered to arrange the deck provided directly above the engine room and forming the ceiling of the engine room at a high position. However, in a ship such as a ferry, when the deck provided directly above the engine room is a vehicle loading deck, if the vehicle loading deck is arranged at a high position, when the ship docks, the height difference between the quay wall and the vehicle loading deck becomes large. As a result, in order for vehicles to board and alight from the vehicle loading deck, the ramp bridging between the quay wall and the vehicle loading deck becomes long.

[0005] On the other hand, a casing that communicates directly above the engine in the engine room may be formed on the deck provided directly above the engine room. By providing the casing, it is possible to secure a space for performing maintenance work on the engine above the engine without raising the position of the vehicle loading deck directly above the engine room. However, if, in addition to the space for performing maintenance work on the engine in the casing, a space for inserting the exhaust pipe as in the configuration described in Patent Document 1 is to be secured, the casing will become large. Then, the space on the deck above the engine room becomes narrow, leading to a decrease in the number of vehicles that can be loaded on the deck. Also, since the position of the casing is restricted directly above the engine, the degree of freedom in designing the deck above the engine room decreases.

[0006] The present disclosure has been made to solve the above problems, and an object thereof is to provide a ship that can effectively utilize the space inside the ship's hull and increase the degree of freedom in design.

Means for Solving the Problems

[0007] To solve the above problems, a ship according to the present disclosure includes an engine room, a lower vehicle deck, an upper vehicle deck, a first casing, and a second casing. The engine room is provided inside the ship's hull and houses an engine. The lower vehicle deck forms the ceiling of the engine room. The upper vehicle deck is provided above the lower vehicle deck. The first casing is provided between the upper vehicle deck disposed immediately above the lower vehicle deck and the lower vehicle deck. The first casing forms a piston extraction space that communicates with the engine room. The second casing extends from the lower vehicle deck upward above the upper vehicle deck at a position different from that of the first casing in plan view. The second casing forms a pipe insertion space that guides an exhaust gas pipe through which the exhaust gas of the engine flows above the upper vehicle deck.

Effects of the Invention

[0008] According to the ship of the present disclosure, it is possible to effectively utilize the space inside the hull and increase the degree of design freedom.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0010] Hereinafter, the ship according to the embodiment of the present disclosure will be described with reference to FIGS. 1 to 3. As shown in FIGS. 1 to 3, the ship 1 of this embodiment mainly includes a hull 2, an engine room 20, a first casing 40, and a second casing 50. The ship type of the ship 1 is not limited to a specific one as long as it can carry vehicles. Examples of the ship type of the ship 1 include a ferry, a RORO ship (Roll-on / Roll-off ship), a PCTC (Pure Car & Truck Carrier), and the like.

[0011] As shown in FIGS. 1 and 3, the hull 2 has a pair of side plates 3A and 3B forming its outer shell and a bottom 4. The side plates 3A and 3B have a pair of side outer plates forming the left and right side plates respectively. The bottom 4 has a bottom outer plate connecting these side plates 3A and 3B.

[0012] The hull 2 is provided with a plurality of decks 7 including a lower vehicle deck 5, an inner bottom plate 6, and an upper deck 8 inside thereof. The lower vehicle deck 5 in this embodiment is a so-called vehicle embarkation deck and freeboard deck, and is the lowest through deck among the through decks arranged above the full load waterline. Vehicles embark from the outside to the inside of the hull 2 when landing. The inner bottom plate 6 forms a double bottom together with the outer bottom plate of the ship bottom. The upper deck 8 is the uppermost through deck among the through decks. Among the plurality of decks 7, the decks 7 arranged above the lower vehicle deck 5 and below the upper deck 8 are upper vehicle decks 9 on which vehicles can be loaded. Also, among the plurality of decks 7, the decks 7 below the lower vehicle deck 5 may be vehicle decks on which vehicles can be loaded.

[0013] As shown in FIG. 1, an upper structure 15 is provided on the upper deck 8 of the hull 2, for example, on the bow 2a side. Also, a funnel 18 is provided on the upper deck 8 of the hull 2 on the stern 2b side in the fore-and-aft direction FA with respect to the upper structure 15. As shown in FIG. 3, in this embodiment, the funnel 18 has a funnel 18A provided on one side in the ship width direction Dw and a funnel 18B provided on the other side in the ship width direction Dw.

[0014] As shown in FIGS. 1 to 3, an engine room 20 is provided between the lower vehicle deck 5 and the inner bottom plate 6 on the stern 2b side inside the hull 2. The lower vehicle deck 5 forms the ceiling of the engine room 20.

[0015] The engine room 20 houses an engine 30. The engine 30 is a main engine, an auxiliary engine, a generator engine, etc. In this embodiment, the engine 30 is a low-speed type engine with a rotational speed of the output shaft during rated operation, for example, 300 [rpm] or less. The engine 30 consists of an internal combustion engine such as a two-cycle diesel engine. The engine 30 is housed in the engine room 20. The height of the engine 30 in this embodiment is slightly lower than the height of the engine room 20, and an exhaust gas pipe 35 extends upward from above the engine 30. The number and arrangement of the engines 30 arranged in the engine room 20 are not limited in any way.

[0016] The first casing 40 is provided between the upper vehicle deck 9 disposed immediately above (in other words, one deck above) the lower vehicle deck 5 and the lower vehicle deck 5. As shown in FIGS. 2 and 3, the first casing 40 has a surrounding wall 41 formed, for example, in a rectangular shape when viewed in the vertical direction Dv (see FIG. 2). The surrounding wall 41 has a pair of side walls 42A, 42B, a front wall 43, and a rear wall 44.

[0017] The pair of side walls 42A, 42B are provided at intervals in the ship width direction Dw. The side wall 42A on one side in the ship width direction Dw is provided spaced apart from the side 3A on one side in the ship width direction Dw toward the inside in the ship width direction Dw (in other words, toward the center side in the ship width direction Dw). The side wall 42B on the other side in the ship width direction Dw is provided spaced apart from the side 3B on the other side in the ship width direction Dw toward the inside in the ship width direction Dw (in other words, toward the center side in the ship width direction Dw). Each of the pair of side walls 42A, 42B extends in the ship's bow and stern direction FA.

[0018] The front wall 43 extends in the ship width direction Dw. The front wall 43 is provided so as to connect the ends on the bow 2a side in the ship's bow and stern direction FA of the pair of side walls 42A, 42B. The rear wall 44 extends in the ship width direction Dw. The rear wall 44 is provided so as to connect the ends on the stern 2b side in the ship's bow and stern direction FA of the pair of side walls 42A, 42B. The first casing 40 having such a partition wall 41 is provided on the center side in the ship width direction Dw with respect to a pair of side hulls 3A and 3B provided on both sides in the ship width direction Dw of the hull 2 and is spaced apart therefrom.

[0019] The pair of side walls 42A and 42B, the front wall 43, and the rear wall 44 are watertight bulkheads and each rise upward from the lower vehicle deck 5. The upper ends of each of the pair of side walls 42A and 42B, the front wall 43, and the rear wall 44 are connected to the lower surface of the upper vehicle deck 9 disposed immediately above (one level above) the lower vehicle deck 5.

[0020] An opening 45 penetrating in the vertical direction Dv is formed in a portion surrounded by the partition wall 41 (the pair of side walls 42A and 42B, the front wall 43, and the rear wall 44) on the lower vehicle deck 5. In other words, the lower vehicle deck 5 is not provided inside the partition wall 41 when viewed from above and is provided only outside the partition wall 41.

[0021] The opening 45 is formed at a position overlapping at least a part of the engine 30 housed in the engine room 20 when viewed from the vertical direction Dv. Specifically, the opening 45 is located directly above a piston (not shown) of the engine 30. The opening 45 is formed at a position and in a size such that when the piston (not shown) of the engine 30 is pulled out upward during maintenance of the engine 30, the piston, the equipment used to pull out the piston, and the operator do not interfere with the lower vehicle deck 5. In this way, the space inside the partition wall 41 communicating with the engine room 20 through the opening 45 is defined as a piston extraction space S1. The size of the opening 45 in the ship width direction Dw illustrated in the present embodiment is formed larger than the size of the engine 30 in the ship width direction Dw in plan view so that the exhaust pipe 35 described later can be returned from the piston extraction space S1 into the engine room 20. Note that the size and shape of the opening 45 in the ship width direction Dw can be appropriately set according to the height of the engine 30 and the position of the lower vehicle deck 5 in the vertical direction Dv.

[0022] Also, when a plurality of engines 30 are accommodated in the engine room 20, the opening 45 is formed at a position and with a size such that the piston extraction operation can be performed from the plurality of engines 30. Note that when a plurality of engines 30 are accommodated in the engine room 20, if some of the plurality of engines 30 are small engines 30 or the like, operations such as piston extraction may be performed below the lower vehicle deck 5 that forms the ceiling of the engine room 20. In such a case, the opening 45 may be formed only at a position above the other engines 30 excluding the small engines 30 among the plurality of engines 30.

[0023] The second casing 50 is provided at a position different from that of the first casing 40 in plan view. The position of the second casing 50 in the fore-and-aft direction FA in this embodiment is provided so as to be at least partially the same as the position of the first casing 40 in the fore-and-aft direction FA. In other words, when viewed from the ship width direction Dw, the second casing 50 and the first casing 40 overlap. Note that the second casing 50 and the first casing 40 may be arranged at different positions in the fore-and-aft direction FA, that is, so as not to overlap when viewed from the ship width direction Dw.

[0024] The second casing 50 is provided along at least one of the pair of side hulls 3A and 3B. In this embodiment, the second casing 50 has a pair of second casings 50A and 50B. One second casing 50A is provided along the side hull 3A on one side in the ship width direction Dw. The other second casing 50B is provided along the side hull 3B on the other side in the ship width direction Dw.

[0025] As shown in FIG. 2, one of the second casings 50A in this embodiment includes a side wall 52, a front wall 53, and a rear wall 54. These side wall 52, front wall 53, and rear wall 54 all form watertight bulkheads. The side wall 52 is provided spaced inward from the side 3A on one side in the ship's breadth direction Dw. The side wall 52 extends in the fore-and-aft direction FA of the ship. The front wall 53 extends inward from the side 3A on one side in the ship's breadth direction Dw. The front wall 53 is provided so as to connect the end on the bow 2a side in the fore-and-aft direction FA of the side wall 52 and the side 3A. The rear wall 54 extends in the ship's breadth direction Dw. The rear wall 54 is provided so as to connect the end on the stern 2b side in the fore-and-aft direction FA of the side wall 52 and the side 3A.

[0026] As shown in FIG. 3, the second casing 50A extends upward from the lower vehicle deck 5 toward above the upper vehicle deck 9. The second casing 50A in this embodiment extends upward from the lower vehicle deck 5. And the upper end of the second casing 50A is connected to the lower surface of the upper deck 8. In the second casing 50A, openings 55 penetrating in the vertical direction Dv are respectively formed in the lower vehicle deck 5 and the upper vehicle deck 9 provided between the lower vehicle deck 5 and the upper deck 8. The openings 55 are formed in the portions surrounded by the side 3A, the side wall 52, the front wall 53, and the rear wall 54 in the lower vehicle deck 5 and the upper vehicle deck 9. In this way, the second casing 50A defines a pipe insertion space S2A surrounded by the side 3B, the side wall 52, the front wall 53, and the rear wall 54 and continuous in the vertical direction Dv.

[0027] As shown in FIG. 2, the other second casing 50B in this embodiment is arranged symmetrically with respect to the left and right with the one second casing 50A. The other second casing 50B has the same configuration as the one second casing 50A described above, and includes a side wall 52, a front wall 53, and a rear wall 54. The side wall 52 is provided spaced inward from the other side of the ship's side 3B in the ship width direction Dw. The side wall 52 extends in the fore-and-aft direction FA of the ship. The front wall 53 extends inward from the other side of the ship's side 3B in the ship width direction Dw. The front wall 53 is provided so as to connect the end of the side wall 52 on the bow 2a side in the fore-and-aft direction FA and the ship's side 3B. The rear wall 54 extends in the ship width direction Dw. The rear wall 54 is provided so as to connect the end of the side wall 52 on the stern 2b side in the fore-and-aft direction FA and the ship's side 3B.

[0028] As shown in FIG. 3, the second casing 50B extends upward from the lower vehicle deck 5 toward above the upper vehicle deck 9. The second casing 50B of this embodiment extends upward from the lower vehicle deck 5. And the upper end of the second casing 50B is connected to the lower surface of the upper deck 8. In the second casing 50B, openings 55 penetrating in the vertical direction Dv are formed in the lower vehicle deck 5 and the upper vehicle deck 9 provided between the lower vehicle deck 5 and the upper deck 8, respectively. The openings 55 are formed in portions surrounded by the ship's side 3B, the side wall 52, the front wall 53, and the rear wall 54 in the lower vehicle deck 5 and the upper vehicle deck 9. In this way, the second casing 50B defines a pipe insertion space S2B surrounded by the ship's side 3B, the side wall 52, the front wall 53, and the rear wall 54 and continuous in the vertical direction Dv.

[0029] At least an exhaust gas pipe 35 through which the exhaust gas of the engine 30 flows is inserted into the pipe insertion spaces S2A and S2B in the second casings 50A and 50B. The pipe insertion spaces S2A and S2B guide the exhaust gas pipe 35 above the upper vehicle deck 9. One end of the exhaust pipe 35 is connected to the engine 30. The other end of the exhaust pipe 35 communicates with a flue (not shown) formed in the funnel 18. The exhaust pipe 35 in this embodiment has two exhaust pipes 35A and 35B. One exhaust pipe 35A is inserted into the pipe insertion space S2A in the second casing 50A and discharges exhaust gas to the outside of the ship through the funnel 18A provided on one side in the ship width direction Dw. The other exhaust pipe 35B is inserted into the pipe insertion space S2B in the second casing 50B and discharges exhaust gas to the outside of the ship through the funnel 18B provided on the other side in the ship width direction Dw.

[0030] In this embodiment, a part of the exhaust pipes 35A and 35B is accommodated in the piston extraction space S1 formed by the first casing 40. The exhaust pipes 35A and 35B accommodate a part of the extending direction of the exhaust pipes 35A and 35B from the engine 30 to the pipe insertion spaces S2A and S2B of the second casings 50A and 50B. Specifically, in this embodiment, the exhaust pipes 35A and 35B extend upward in the vertical direction Dv from the engine 30 and have a folding portion 35c that bends or curves downward in the piston extraction space S1. The exhaust pipes 35A and 35B extend outward in the ship width direction Dw through the folding portion 35c and are guided into the pipe insertion spaces S2A and S2B from the lower ends of the second casings 50A and 50B.

[0031] In addition to the exhaust pipes 35A and 35B, the pipe insertion spaces S2A and S2B may accommodate, for example, a generator exhaust pipe, a lubricating oil mist pipe, a fuel oil mist pipe, a boiler exhaust pipe, etc. that are led from the engine room 20 into the funnel 18 (18A, 18B).

[0032] (Function and effect) In the ship 1 of the above-described embodiment, a first casing 40 is provided between the upper vehicle deck 9 and the lower vehicle deck 5. As a result, when performing maintenance on the engine 30 housed in the engine room 20, a piston extraction space S1 for extracting the piston can be secured within the first casing 40. For this reason, the necessity of raising the position of the lower vehicle deck 5 can be suppressed in order to secure a space for performing maintenance on the engine 30. Therefore, when the ship 1 is ashore, an increase in the height difference between the quay wall and the lower vehicle deck 5 can be suppressed, and an increase in the length of the ramp can also be suppressed. Further, when the position of the lower vehicle deck 5 is raised, it has an adverse effect on the recoverability of the ship 1, but by suppressing the position of the lower vehicle deck 5 to be low, it is possible to suppress a decrease in the recoverability of the ship 1. Further, a second casing 50 through which the exhaust gas pipe 35 is inserted is provided at a position different from that of the first casing 40 in plan view. For this reason, it is not necessary to insert the exhaust gas pipe 35 into the first casing 40, and the first casing 40 can be made smaller. Therefore, a decrease in the number of vehicle loading platforms on the lower vehicle deck 5 can be suppressed. Further, the second casing 50 can be arranged at another location with a high degree of freedom regardless of the position of the first casing 40. And since the first casing 40 is not formed on the upper vehicle deck 9, the number of vehicle loading platforms on the upper vehicle deck 9 can be increased. Therefore, it is possible to effectively utilize the space inside the hull 2 and increase the design freedom.

[0033] Furthermore, in the above-described embodiment, since a part of the exhaust gas pipe 35 is housed in the first casing 40, a part of the piston extraction space S1 in the first casing 40 can be used as a space for arranging the exhaust gas pipe 35. Therefore, the space for arranging the exhaust gas pipe 35 occupied in the engine room 20 can be reduced, and the space in the engine room 20 can be effectively utilized.

[0034] In addition, in the above-described embodiment, by providing the second casing 50 along the pair of ship's sides 3A and 3B, compared to the case where the second casing 50 is arranged at the center in the ship width direction Dw, the second casing 50 can be arranged at a location where it is less likely to interfere with the loading of vehicles mounted on the lower vehicle deck 5 and the upper vehicle deck 9 and the passage of vehicles.

[0035] Furthermore, in the above-described embodiment, the funnel 18 is provided so as to be spaced apart from the center in the ship width direction Dw to one side and the other side in the ship width direction Dw, so that the exhaust gas pipe 35 inserted into the second casing 50 can be smoothly guided to the funnel 18.

[0036] (Other Embodiments) As described above, the embodiments of the present disclosure have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope not departing from the gist of the present disclosure are also included. In the above-described embodiment, the case where the side walls on the outer side in the ship width direction Dw surrounding the pipe insertion spaces S2A and S2B of the second casings 50A and 50B are formed by the ship's sides 3A and 3B has been described. However, the configuration is not limited to this. For example, the second casings 50A and 50B may have side walls in contact with the ship's sides 3A and 3B or side walls slightly separated from the ship's sides 3A and 3B toward the inner side in the ship width direction Dw instead of the ship's sides 3A and 3B.

[0037] In addition, in the above-described embodiment, the second casing 50 and the funnel 18 are provided on one side and the other side in the ship width direction Dw, but the present invention is not limited to this. The second casing 50 and the funnel 18 may be provided only on either one side in the ship width direction Dw.

[0038] <Supplementary Note> The ship 1 described in the embodiment is understood, for example, as follows.

[0039] (1) The ship 1 according to the first aspect is provided within the hull 2, and includes an engine room 20 in which an engine 30 is housed, a lower vehicle deck 5 forming the ceiling of the engine room 20, an upper vehicle deck 9 provided above the lower vehicle deck 5, a first casing 40 provided between the upper vehicle deck 9 disposed immediately above the lower vehicle deck 5 and the lower vehicle deck 5 and forming a piston extraction space S1 communicating with the engine room 20, and a second casing 50 forming a pipe insertion space S2 that extends from the lower vehicle deck 5 upward above the upper vehicle deck 9 and guides the exhaust gas pipe 35 through which the exhaust gas of the engine 30 flows to above the upper vehicle deck 9, at a position different from the first casing 40 in plan view.

[0040] In this ship 1, a first casing 40 is provided between the upper vehicle deck 9 and the lower vehicle deck 5. Thereby, when performing maintenance on the engine 30 housed in the engine room 20, a piston extraction space S1 for extracting the piston can be secured within the first casing 40. For this reason, the necessity of raising the position of the lower vehicle deck 5 is suppressed in order to secure a space for performing maintenance on the engine 30. Therefore, when the ship 1 is docked, an increase in the height difference between the quay wall and the lower vehicle deck 5 can be suppressed, and an increase in the length of the ramp can also be suppressed. Further, when the position of the lower vehicle deck 5 is raised, it has an adverse effect on the recoverability of the ship 1, but by suppressing the position of the lower vehicle deck 5, a decrease in the recoverability of the ship 1 can be suppressed. Also, the second casing 50 through which the exhaust gas pipe 35 is inserted is provided at a position different from the first casing 40 in plan view. For this reason, it is not necessary to insert the exhaust gas pipe 35 through the first casing 40, and the first casing 40 can be made smaller. Therefore, a decrease in the number of vehicle loading positions on the lower vehicle deck 5 can be suppressed. As a result, the effective use of the space within the hull 2 can be achieved, and the design freedom can be increased.

[0041] (2) The ship 1 according to the second aspect is the ship 1 of (1), and in the piston extraction space S1 formed by the first casing 40, a part of the exhaust gas pipe 35 from the engine 30 to the pipe insertion space S2 of the second casing 50 is accommodated.

[0042] As a result, since a part of the exhaust gas pipe 35 is accommodated in the first casing 40, a part of the piston extraction space S1 in the first casing 40 can be used as a space for arranging the exhaust gas pipe 35. Therefore, the space for arranging the exhaust gas pipe 35 occupied in the engine room 20 can be reduced, and the effective use of the space in the engine room 20 can be achieved.

[0043] (3) The ship 1 according to the third aspect is the ship 1 of (1) or (2), and the first casing 40 is provided on the central side in the ship width direction Dw with respect to a pair of side hulls 3A and 3B provided on both sides in the ship width direction Dw of the hull 2, and the second casing 50 is provided along at least one of the pair of side hulls 3A and 3B.

[0044] As a result, by providing the second casing 50 along at least one of the pair of side hulls 3A and 3B, compared with the case where the second casing 50 is arranged at the center in the ship width direction Dw, etc., the second casing 50 is less likely to interfere with the loading of vehicles mounted on the lower vehicle deck 5 and the upper vehicle deck 9 and the passage of vehicles. It can be arranged in a place where it is not easy to get in the way.

[0045] (4) The ship 1 according to the fourth aspect is the ship 1 of (3), and on the upper part of the hull 2, a funnel 18 communicating with the pipe insertion space S2 of the second casing 50 is provided, and a plurality of funnels 18 are provided spaced apart on one side and the other side in the ship width direction Dw with respect to the central part in the ship width direction Dw.

[0046] As a result, the funnels 18 are provided spaced apart from one side and the other side in the ship width direction Dw with respect to the central portion in the ship width direction Dw, so that the exhaust gas pipe 35 inserted into the second casing 50 can be smoothly guided to the funnels 18.

Explanation of Signs

[0047] 1…Ship 2…Hull 2a…Bow 2b…Stern 3A, 3B…Side 4…Bottom 5…Lower vehicle deck 6…Inner bottom plate 7…Deck 8…Upper deck 9…Upper vehicle deck 15…Superstructure 18, 18A, 18B…Funnel 20…Engine room 30…Engine 35, 35A, 35B…Exhaust gas pipe 35c…Turning part 40…First casing 41…Enclosure wall 42A, 42B…Side wall 43…Front wall 44…Rear wall 45…Opening 50, 50A, 50B…Second casing 52…Side wall 53…Front wall 54…Rear wall 55…Opening S1…Piston extraction space S2, S2A, S2B…Pipe insertion space

Claims

1. An engine room provided within the hull and housing an engine, A lower vehicle deck forming the ceiling of the engine room, An upper vehicle deck provided above the lower vehicle deck, A first casing provided between the upper vehicle deck and the lower vehicle deck disposed immediately above the lower vehicle deck, forming a piston extraction space communicating with the engine room, At a position different from the first casing in plan view, extending upward from the lower vehicle deck above the upper vehicle deck, a second casing forming a pipe insertion space for guiding an exhaust gas pipe through which the exhaust gas of the engine flows to above the upper vehicle deck, A ship comprising the above.

2. In the piston extraction space formed by the first casing, a part of the exhaust gas pipe from the engine to the pipe insertion space of the second casing is accommodated. The ship according to Claim 1.

3. The first casing is provided spaced apart toward the center in the ship width direction with respect to a pair of side hulls provided on both sides in the ship width direction of the hull, The second casing is provided along at least one of the pair of side hulls. The ship according to Claim 1 or 2.

4. The upper part of the hull is provided with a funnel communicating with the pipe insertion space of the second casing, A plurality of the funnels are provided spaced apart on one side and the other side in the ship width direction with respect to the center in the ship width direction. The ship according to Claim 3.

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