vessel

Abstract

This utility model discloses a vessel comprising a longitudinal bulkhead. Along the length of the vessel, one end of the longitudinal bulkhead extends to the bow and is fixedly connected to the bow, and the other end extends to the stern and is fixedly connected to the stern. The bottom of the longitudinal bulkhead is fixedly connected to the bottom wall of the engine room, dividing the engine room into a port engine room and a starboard engine room. A port working compartment is fixedly located above the port engine room, and a starboard working compartment is fixedly located above the starboard engine room. Two folded bulkheads are sequentially distributed along the length of the vessel. Each folded bulkhead is angled to both the height and width directions of the vessel. The bottom of each folded bulkhead is fixedly connected to the top of the longitudinal bulkhead. The top of each folded bulkhead is fixedly connected to the bottom of either the port or starboard working compartment. The cross-sectional area of ​​the connection between the forward cofferdam installation space and one of the port or starboard engine rooms is increased, as are the cross-sectional areas of the aft cofferdam installation space and one of the port or starboard engine rooms.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to ships. Background Technology

[0002] Due to increasingly stringent regulations on passenger ships and ro-ro ships, these vessels are required to have a dual engine room layout to meet safe return-to-port requirements. This layout reduces the space available for the deck cofferdam, especially for ro-ro ships, where the port and starboard engine rooms need to be independent spaces, and the ventilation ducts, exhaust vents, and stern air handling units in both engine rooms must also be independent of each other, further complicating the layout and structural design of the engine rooms and cofferdam.

[0003] In related technologies, for a dual engine room arrangement, the two engine rooms are located near the center of the ship's length. The longitudinal bulkheads separating the engine rooms include a port bulkhead, a starboard bulkhead, and an intermediate bulkhead connecting the two. The port bulkhead is positioned along the ship's centerline, near the port engine room, extending to the bow. The starboard bulkhead is positioned along the ship's centerline, near the starboard engine room, extending to the stern. This connects the fore cofferdam to the port engine room and the aft cofferdam to the starboard engine room, allowing for independent smoke extraction and ventilation for both engine rooms. However, the cross-sectional area of ​​the connection between the fore cofferdam and the port engine room is small, making it inconvenient for pipes to enter the fore cofferdam from this connection. Similarly, the cross-sectional area of ​​the connection between the aft cofferdam and the starboard engine room is small, making it inconvenient for pipes to enter the aft cofferdam from this connection. Utility Model Content

[0004] The purpose of this invention is to provide a ship that solves the aforementioned problems in the left-right arrangement of the two engine rooms in related technologies.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The vessel includes an engine room, longitudinal bulkheads, a port working compartment, and a starboard working compartment. The port and starboard working compartments form a forward cofferdam installation space and a rear cofferdam installation space, sequentially distributed along the length of the vessel. The longitudinal bulkheads include:

[0007] The longitudinal bulkhead body extends along the length of the vessel, with one end extending to the bow and fixedly connected to the bow, and the other end extending to the stern and fixedly connected to the stern; along the height of the vessel, the bottom of the longitudinal bulkhead body is fixedly connected to the bottom wall of the engine room and divides the engine room into a port engine room and a starboard engine room; the port working compartment is fixedly located above the port engine room, and the starboard working compartment is fixedly located above the starboard engine room;

[0008] Two folded bulkheads are distributed sequentially along the length of the vessel; each folded bulkhead is set at an angle to both the height and width directions of the vessel; the bottom of each folded bulkhead is fixedly connected to the top of the longitudinal bulkhead body; the top of each folded bulkhead is fixedly connected to one of the bottoms of the left working compartment and the right working compartment.

[0009] As an alternative to the aforementioned vessel, the longitudinal bulkhead body is located in the middle of the vessel along its width direction.

[0010] As an alternative to the aforementioned vessel, the central axis of the fore-column installation space is located in the middle of the vessel along the width direction, or the central axis of the fore-column installation space is located on one side of the middle of the vessel.

[0011] As an alternative to the aforementioned vessel, the central axis of the aft cofferdam installation space is located in the middle of the vessel along the width direction, or the central axis of the aft cofferdam installation space is located on one side of the middle of the vessel.

[0012] As an alternative to the aforementioned vessel, the top of each of the folding walls is fixedly connected to the bottom corner of the port working compartment near the starboard working compartment, so that both the forward cofferdam installation space and the aft cofferdam installation space are directly connected to the starboard engine room; or,

[0013] The top of each of the aforementioned folding walls is fixedly connected to the bottom corner of the right working compartment near the left working compartment, so that both the front and rear cofferdam installation spaces are directly connected to the left engine room; or,

[0014] The top of one of the folded walls is fixedly connected to the bottom corner of the left working compartment near the right working compartment, and the top of the other folded wall is fixedly connected to the bottom corner of the right working compartment near the left working compartment, so that one of the front cofferdam installation space and the rear cofferdam installation space is directly connected to the left engine room, and the other is directly connected to the right engine room.

[0015] As an alternative to the aforementioned vessel, along the length of the vessel, the front end of the forward-facing one of the two folding walls is flush with the front end of the engine room, and the rear end of the aft-facing one of the two folding walls is flush with the rear end of the engine room; and / or,

[0016] Along the length of the ship, the total length of the two folding walls is equal to the length of the engine room.

[0017] As an alternative to the aforementioned vessel, the longitudinal bulkhead body includes a first sub-section and two second sub-sections connected to both ends of the first sub-section along the length of the vessel. The bottom of each of the two folded bulkheads is fixedly connected to the top of the first sub-section, and the two second sub-sections are fixedly connected to the bow and the stern in a one-to-one correspondence.

[0018] Along the height direction of the ship, the ratio of the height of the first sub-section to the height of the engine room ranges from . to .; and / or, along the length direction of the ship, the front end of the first sub-section is flush with the front end of the engine room, and the rear end of the first sub-section is flush with the rear end of the engine room.

[0019] As an alternative to the aforementioned vessel, each of the folded walls is set at a 90° angle to both the height and width directions of the vessel.

[0020] As an alternative to the aforementioned vessel, along the length of the vessel, one end of the longitudinal bulkhead body is welded to the bow and the other end is welded to the stern; and / or,

[0021] The bottom of each of the aforementioned folded walls is welded and fixed to the top of the longitudinal bulkhead body; and / or,

[0022] The top of each of the folded walls is welded to one of the bottoms of the left working compartment and the right working compartment.

[0023] As an alternative to the aforementioned vessel, the vessel is a ro-ro passenger ship; or, the vessel is a passenger ship.

[0024] The beneficial effects of this utility model are:

[0025] This utility model provides a vessel in which two folded walls are inclined, with each folded wall forming an angle with both the vessel's height and width directions. This allows for adaptive configuration of the forward and aft cofferdam installation spaces, connecting directly to either the left or right engine room, based on the concentrated distribution area and number of pipelines within these spaces. This effectively improves the working performance of the longitudinal bulkheads. Furthermore, this configuration significantly increases the cross-sectional area of ​​the connection points between the forward and aft cofferdam installation spaces, thereby enhancing the ease of pipeline access between these connections. Attached Figure Description

[0026] Figure 1 This is a layout diagram of a ship provided in a specific embodiment of this utility model;

[0027] Figure 2 This is a layout diagram of a ship's fore-column installation space and port engine room directly connected, provided by a specific embodiment of the present utility model, and the central axis of the fore-column installation space is located in the middle position of the ship's width direction.

[0028] Figure 3 This is a layout diagram of a ship where the aft cofferdam installation space and the starboard engine room are directly connected, and the central axis of the forward cofferdam installation space is located in the middle of the ship's width direction, according to a specific embodiment of this utility model.

[0029] Figure 4 This is a layout diagram of a ship's fore-column installation space and port engine room directly connected, with the central axis of the fore-column installation space located in the middle of the ship's width direction, provided by a specific embodiment of this utility model.

[0030] Figure 5 This is a layout diagram of a ship where the aft cofferdam installation space and the right engine room are directly connected, and the central axis of the forward cofferdam installation space is located in the middle of the ship's width direction, according to a specific embodiment of this utility model.

[0031] In the picture:

[0032] 11. Left cabin; 12. Right cabin;

[0033] 2. Longitudinal bulkhead; 21. Longitudinal bulkhead body; 22. Folded bulkhead;

[0034] 3. Left working compartment;

[0035] 4. Right working compartment;

[0036] 5. Installation space in the front well;

[0037] 6. Rear enclosure installation space. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] like Figure 1-5 As shown, this utility model provides a ship, which includes an engine room, longitudinal bulkhead 2, port working compartment 3, and starboard working compartment 4; a forward cofferdam installation space 5 and a rear cofferdam installation space 6 are formed between the port working compartment 3 and the starboard working compartment 4, distributed sequentially along the length of the ship; the longitudinal bulkhead 2 includes a longitudinal bulkhead body 21 and two folding walls 22; along the length of the ship, one end of the longitudinal bulkhead body 21 extends to the bow of the ship and is fixedly connected to the bow, and the other end extends to the stern of the ship and is fixedly connected to the stern; along the height direction of the ship, the bottom of the longitudinal bulkhead body 21... The bulkhead is fixedly connected to the bottom wall of the engine room and divides the engine room into the left engine room 11 and the right engine room 12; the left working compartment 3 is fixedly located above the left engine room 11 and the right working compartment 4 is fixedly located above the right engine room 12; two folded bulkheads 22 are distributed sequentially along the length of the ship; each folded bulkhead 22 is set at an angle to both the height and width of the ship; the bottom of each folded bulkhead 22 is fixedly connected to the top of the longitudinal bulkhead body 21; the top of each folded bulkhead 22 is fixedly connected to one of the bottoms of the left working compartment 3 and the right working compartment 4.

[0043] It is understandable that when the tops of both folding walls 22 are fixedly connected to the bottom of the left working compartment 3, the forward cofferdam installation space 5 and the aft cofferdam installation space 6 are both directly connected to the right engine room 12. When the tops of both folding walls 22 are fixedly connected to the bottom of the right working compartment 4, the forward cofferdam installation space 5 and the aft cofferdam installation space 6 are both directly connected to the left engine room 11. For example... Figure 2-5 As shown, when the top of one folding wall 22 is fixedly connected to the bottom of the left working compartment 3, and the top of the other folding wall 22 is fixedly connected to the bottom of the right working compartment 4, one of the front enclosure installation space 5 and the rear enclosure installation space 6 is directly connected to the left engine room 11, and the other is directly connected to the right engine room 12.

[0044] By tilting the two folded walls 22, with each folded wall 22 forming an angle with both the height and width directions of the ship, the forward cofferdam installation space 5 and the aft cofferdam installation space 6 can be adaptively configured to directly connect to one of the left engine room 11 and the right engine room 12, and the aft cofferdam installation space 6 directly connect to one of the left engine room 11 and the right engine room 12, based on the concentrated distribution area and number of pipes within the forward cofferdam installation space 5 and the aft cofferdam installation space 6. This effectively improves the working performance of the longitudinal bulkhead 2. Secondly, this configuration effectively increases the cross-sectional area of ​​the connection point between the forward cofferdam installation space 5 and the left engine room 11 or the right engine room 12, and also effectively increases the cross-sectional area of ​​the connection point between the aft cofferdam installation space 6 and the left engine room 11 or the right engine room 12. This effectively improves the convenience of pipes connecting to the connection point between the forward cofferdam installation space 5 and the left engine room 11 or the right engine room 12, and also effectively improves the convenience of pipes connecting to the connection point between the aft cofferdam installation space 6 and the left engine room 11 or the right engine room 12.

[0045] The left working compartment 3 refers to the passenger cabin and / or cargo hold located above the left engine room 11. The right working compartment 4 refers to the passenger cabin and / or cargo hold located above the right engine room 12. The specific structures of the engine room, left working compartment 3, and right working compartment 4 are all existing technologies and will not be described in detail here.

[0046] Optionally, such as Figure 1-5 As shown, the longitudinal bulkhead body 21 is located in the middle of the ship along its width direction. Compared to the side where the longitudinal bulkhead body 21 is located in the middle of the ship, especially with the top of one folded bulkhead 22 fixedly connected to the bottom of the port working compartment 3 and the top of the other folded bulkhead 22 fixedly connected to the bottom of the starboard working compartment 4, the support performance of the longitudinal bulkhead 21 can be effectively improved; secondly, this arrangement makes the space difference between the port engine room 11 and the starboard engine room 12 smaller; and thirdly, this arrangement improves the aesthetics of the ship. In other embodiments, the longitudinal bulkhead body 21 can also be located in the middle of the ship along its width direction. Specifically, Figure 2-5 The dotted line is located in the middle of the ship's width direction.

[0047] Optionally, such as Figure 2 As shown, along the width direction of the ship, the centerline of the fore-column installation space 5 is located in the middle of the ship. This arrangement ensures that the widths of the corresponding areas of the left working compartment 3 and right working compartment 4 are substantially the same along the width direction of the ship. In other embodiments, such as... Figure 4 As shown, the central axis of the fore-buoy installation space 5 can also be set along the width direction of the ship, with the central axis located on one side of the middle position of the ship.

[0048] Optionally, such as Figure 3 As shown, along the width direction of the ship, the centerline of the aft cofferdam installation space 6 is located in the middle of the ship. This arrangement ensures that the widths of the corresponding areas of the left working compartment 3 and right working compartment 4 are substantially the same along the width direction of the ship. In other embodiments, such as... Figure 5 As shown, the aft cofferdam installation space 6 can also be set along the width direction of the ship, with the central axis of the space located on one side of the middle position of the ship.

[0049] In this embodiment, as Figure 2 and Figure 3 As shown, along the width direction of the ship, the central axis of the forward cofferdam installation space 5 is located in the middle of the ship, and the central axis of the aft cofferdam installation space 6 is also located in the middle of the ship.

[0050] Understandably, the above arrangement also ensures that the layout of the front cofferdam installation space 5, the rear cofferdam installation space 6, the left working compartment 3, and the right working compartment 4 is not affected by the structural form of the longitudinal bulkhead 2.

[0051] Optionally, for the top of each folded bulkhead 22 to be fixedly connected to the bottom of the port working compartment 3, the top of each folded bulkhead 22 is also fixedly connected to the bottom corner of the port working compartment 3 near the starboard working compartment 4, so that both the forward cofferdam installation space 5 and the aft cofferdam installation space 6 are directly connected to the starboard engine room 12. This not only improves the support performance of the longitudinal bulkhead 2 to the port engine room 11 and ensures the structural strength of the longitudinal bulkhead 2, but also minimizes the spatial impact on the port engine room 11 and further enhances the aesthetics of the ship.

[0052] Optionally, for the top of each folded bulkhead 22 to be fixedly connected to the bottom of the starboard working compartment 4, the top of each folded bulkhead 22 is also fixedly connected to the bottom corner of the starboard working compartment 4 near the port engine room 11, so that both the forward cofferdam installation space 5 and the aft cofferdam installation space 6 are directly connected to the port engine room 11. This not only improves the support performance of the longitudinal bulkhead 2 to the starboard engine room 12 and ensures the structural strength of the longitudinal bulkhead 2, but also minimizes the impact on the space of the starboard engine room 12, and further enhances the aesthetics of the ship.

[0053] Optionally, such as Figure 2-5 As shown, for the top of one folded bulkhead 22 fixedly connected to the bottom of the left working compartment 3, and the top of the other folded bulkhead 22 fixedly connected to the bottom of the right working compartment 4, the top of one folded bulkhead 22 is fixedly connected to the bottom corner of the left working compartment 3 near the right engine room 12, and the top of the other folded bulkhead 22 is fixedly connected to the bottom corner of the right working compartment 4 near the left engine room 11. This allows one of the forward cofferdam installation space 5 and the aft cofferdam installation space 6 to be directly connected to the left engine room 11, and the other to be directly connected to the right engine room 12. This not only improves the support performance of the longitudinal bulkhead 2 for the left engine room 11 and the right engine room 12, ensuring the structural strength of the longitudinal bulkhead 2, but also minimizes the spatial impact on the left engine room 11 and the right engine room 12, and further enhances the aesthetics of the ship.

[0054] In this embodiment, as Figure 2 and Figure 3 As shown, preferably, the top of one of the folded walls 22 is fixedly connected to the bottom corner of the left working compartment 3 near the right engine compartment 12, and the top of the other folded wall 22 is fixedly connected to the bottom corner of the right working compartment 4 near the left engine compartment 11, so that one of the front cofferdam installation space 5 and the rear cofferdam installation space 6 is directly connected to the left engine compartment 11, and the other is directly connected to the right engine compartment 12.

[0055] In this embodiment, as Figure 2 and Figure 3 As shown, preferably each folded bulkhead 22 is positioned at a 45° angle to both the height and width directions of the ship. This is particularly beneficial in this embodiment, as it further enhances the support performance of the longitudinal bulkheads 2 for the port engine room 11 and starboard engine room 12.

[0056] Optionally, along the length of the vessel, the forward-facing one of the two folded walls 22 has its front end flush with the front of the engine room, and the rear-facing one of the two folded walls 22 has its rear end flush with the rear of the engine room. This is to prevent the folded walls 22 from interfering with other structures within the vessel and to further enhance the vessel's aesthetics.

[0057] Optionally, along the length of the ship, the total length of the two folded bulkheads 22 is equal to the length of the engine room. In this embodiment, the supporting performance of the longitudinal bulkheads 2 for the port engine room 11 and the starboard engine room 12 can be further improved.

[0058] The longitudinal bulkhead body 21 includes a first sub-section and two second sub-sections connected to both ends of the first sub-section along the length of the ship. The bottom of the two folded bulkheads 22 are fixedly connected to the top of the first sub-section, and the two second sub-sections are fixedly connected to the bow and stern of the ship respectively.

[0059] Optionally, along the ship's height direction, the ratio of the height of the first sub-section to the height of the engine room ranges from 0.25 to 0.3. In this embodiment, this ensures the supporting performance of the longitudinal bulkhead 2 for the port engine room 11 and the starboard engine room 12.

[0060] Optionally, along the length of the ship, the front end of the first sub-section is flush with the front end of the engine room, and the rear end of the first sub-section is flush with the rear end of the engine room. In this embodiment, along the length of the ship, the length of the first sub-section is equal to the sum of the lengths of the two folded walls 22, thereby further improving the aesthetics of the ship; secondly, for the second sub-section to support other supported structures, it can effectively increase the support area of ​​the second sub-section, thereby further improving the support performance of the longitudinal bulkhead 2.

[0061] Optionally, along the length of the ship, one end of the longitudinal bulkhead body 21 is welded to the bow, and the other end is welded to the stern. That is, one of the two second sections is welded to the bow, and the other end is welded to the stern. This ensures the reliability of the connection between one second section and the bow, and also ensures the reliability of the connection between the other second section and the stern. In other embodiments, welding can be replaced by bolt and nut connections, etc.

[0062] Optionally, the bottom of the folded wall 22 is welded to the top of the longitudinal bulkhead body 21. This ensures the reliability of the connection between the folded wall 22 and the longitudinal bulkhead body 21. In other embodiments, welding can be replaced by bolt and nut connections, etc.

[0063] Optionally, the top of each folded wall 22 is welded to one of the bottoms of the left working compartment 3 and the right working compartment 4. In this embodiment, one of the tops of the two folded walls 22 is welded to the bottom of the left working compartment 3, and the other is welded to the bottom of the right working compartment 4. This ensures the reliable connection between one folded wall 22 and the left working compartment 3, and also ensures the reliable connection between the other folded wall 22 and the right working compartment 4. In other embodiments, welding can be replaced with bolt and nut connections, etc.

[0064] Alternatively, the two folded bulkheads 22 can be welded together at their closest points along the length of the ship. This further enhances the structural strength of the longitudinal bulkheads 2. In other embodiments, welding can be replaced by bolt and nut connections, etc.

[0065] In this embodiment, the vessel is exemplarily set as a passenger roll-on / roll-off ship. In other embodiments, the vessel may also be a passenger ship, etc.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vessel, comprising an engine room, longitudinal bulkheads (2), a port working compartment (3) and a starboard working compartment (4), wherein a forward cofferdam installation space (5) and a rear cofferdam installation space (6) are formed between the port working compartment (3) and the starboard working compartment (4) and are distributed sequentially along the length of the vessel, characterized in that, The longitudinal bulkhead (2) includes: The longitudinal bulkhead body (21) extends along the length of the ship, with one end extending to the bow of the ship and fixedly connected to the bow, and the other end extending to the stern of the ship and fixedly connected to the stern; along the height of the ship, the bottom of the longitudinal bulkhead body (21) is fixedly connected to the bottom wall of the engine room and divides the engine room into the left engine room (11) and the right engine room (12); the left working compartment (3) is fixedly disposed above the left engine room (11), and the right working compartment (4) is fixedly disposed above the right engine room (12); Two folded walls (22) are distributed sequentially along the length of the ship; each folded wall (22) is set at an angle to both the height direction and the width direction of the ship; the bottom of each folded wall (22) is fixedly connected to the top of the longitudinal bulkhead body (21); the top of each folded wall (22) is fixedly connected to one of the bottoms of the left working compartment (3) and the right working compartment (4).

2. The ship according to claim 1, characterized in that, Along the width direction of the vessel, the longitudinal bulkhead body (21) is located in the middle of the vessel.

3. The ship according to claim 1, characterized in that, Along the width direction of the vessel, the central axis of the fore-column installation space (5) is located in the middle of the vessel, or the central axis of the fore-column installation space (5) is located on one side of the middle of the vessel.

4. The ship according to claim 1, characterized in that, Along the width direction of the vessel, the central axis of the aft cofferdam installation space (6) is located in the middle of the vessel, or the central axis of the aft cofferdam installation space (6) is located on one side of the middle of the vessel.

5. The ship according to claim 1, characterized in that: The top of each of the folding walls (22) is fixedly connected to the bottom corner of the left working compartment (3) near the right working compartment (4), so that the front cofferdam installation space (5) and the rear cofferdam installation space (6) are both directly connected to the right engine room (12); or, The top of each of the folding walls (22) is fixedly connected to the bottom corner of the right working compartment (4) near the left working compartment (3), so that the front cofferdam installation space (5) and the rear cofferdam installation space (6) are both directly connected to the left engine room (11); or, The top of one of the folded walls (22) is fixedly connected to the bottom corner of the left working compartment (3) near the right working compartment (4), and the top of the other folded wall (22) is fixedly connected to the bottom corner of the right working compartment (4) near the left working compartment (3), so that one of the front cofferdam installation space (5) and the rear cofferdam installation space (6) is directly connected to the left engine room (11), and the other is directly connected to the right engine room (12).

6. The vessel according to any one of claims 1-5, characterized in that, Along the length of the vessel, the front end of the forward-facing one of the two folding walls (22) is flush with the front end of the engine room, and the rear end of the rear-facing one of the two folding walls (22) is flush with the rear end of the engine room; and / or, Along the length of the ship, the total length of the two folding walls (22) is equal to the length of the engine room.

7. The vessel according to any one of claims 1-5, characterized in that, The longitudinal bulkhead body (21) includes a first sub-section and two second sub-sections connected to both ends of the first sub-section along the length direction of the ship. The bottom of the two folded walls (22) are fixedly connected to the top of the first sub-section, and the two second sub-sections are fixedly connected to the bow and the stern in a one-to-one correspondence. Along the height direction of the vessel, the ratio of the height of the first sub-section to the height of the engine room ranges from 0.25 to 0.3; and / or, along the length direction of the vessel, the front end of the first sub-section is flush with the front end of the engine room, and the rear end of the first sub-section is flush with the rear end of the engine room.

8. The vessel according to any one of claims 1-5, characterized in that, Each of the folded walls (22) is set at 45° to both the height and width directions of the vessel.

9. The vessel according to any one of claims 1-5, characterized in that: Along the length of the vessel, one end of the longitudinal bulkhead body (21) is welded to the bow, and the other end is welded to the stern; and / or, The bottom of each of the aforementioned folded walls (22) is welded and fixed to the top of the longitudinal bulkhead body (21); and / or, The top of each of the folded walls (22) is welded to one of the bottoms of the left working compartment (3) and the right working compartment (4).

10. The vessel according to any one of claims 1-5, characterized in that, The vessel is a passenger roll-on / roll-off ship; or, the vessel is a passenger ship.

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