Dual-fuel ship cabin arrangement
By rationally arranging methanol fuel chambers and traditional fuel chambers in ship compartments, and using isolation vacant capsules and multi-layer platform designs, the low utilization and stability of space caused by dual-fuel ship compartments are solved, and the load capacity and life-saving environment are improved .
Patent Information
- Application Number
- CN202411253668.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2024-12-10
AI Technical Summary
The layout of traditional dual-fuel ship cabins leads to low space utilization, and the isolation cabin needs to be increased when the methanol fuel cabin is shared with the traditional fuel cabin, which affects the space efficiency and stability.
Design a dual-fuel ship compartment layout, with methanol fuel compartment, fuel compartment, methanol discharge compartment and methanol daily compartment located in the cargo compartment area, use isolation vacant capsules to reduce the number of isolation vacant compartment, set up multi-layer isolation vacant platform and life-saving channel, methanol There are sway-swinging and longitudinal corrugated bulkheads around the fuel compartment, and the methanol drain compartment is built into the methanol fuel compartment.
It improves the space utilization rate of ships, reduces the number of isolation compartments, improves life-saving space, increases loading capacity, and reduces the impact of methanol liquid on ship stability due to the shaking of free liquid level.
Smart Images
Figure CN119099783A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of shipbuilding, and in particular to a dual-fuel ship cabin arrangement. Background Art
[0002] In order to meet the environmental protection requirements of the International Maritime Organization, strictly control the pollution of ships, and combine the current development of the international methanol market, more and more ships choose methanol as a clean fuel. Especially in the layout of the dual-fuel tanks on PCTC ro-ro ships, the layout of the methanol fuel tank on the ship, especially for dual-fuel ships that choose to use traditional fuel and methanol, the cabin layout problem is particularly prominent. The special nature of methanol fuel requires its cabin to be designed as a double hull for protection, so the space utilization rate of the ship is worse than that of conventional ships. Therefore, how to scientifically and reasonably solve the layout of traditional fuel tanks and methanol fuel tanks and solve the low space utilization rate caused by isolation tanks has become a technical problem that needs to be solved urgently. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a dual-fuel ship cabin layout, which breaks the existing cabin capacity position of the ship, cleverly utilizes the existing structural position of the ship, and sets methanol-related cabins, thereby ensuring the effective utilization of the ship's space, reducing the number of isolation cabins, saving the effective space of the ship, improving the isolation cabin life-saving space, improving the construction environment, and also increasing the ship's loading capacity, and improving the impact of the methanol liquid in the cabin on the ship's stability due to the free liquid surface shaking.
[0004] To achieve the above object, the present invention adopts the following technical solution: A dual-fuel ship cabin layout, the cabins comprising a methanol fuel tank, a fuel oil tank, a methanol discharge tank and a methanol daily tank, the methanol fuel tank, the fuel oil tank and the methanol daily tank are all located in the cargo hold area near the bow side of the engine room front wall above the inner bottom plate below the freeboard 5 deck of the cargo hold area, the fuel oil tank and the methanol daily tank are located above the methanol fuel tank, and the fuel oil tank is located in the bow direction, and the methanol daily tank is located in the stern direction, a reserved space for a passage is provided between the fuel oil tank and the methanol daily tank, isolation empty tanks are provided around the methanol fuel tank, and the methanol discharge tank is built in the methanol fuel tank.
[0005] Furthermore, the outer wall of the isolation tank includes a first transverse wall, a second transverse wall, a first longitudinal wall, a second longitudinal wall, a first wall panel and a second wall panel. The front wall of the engine room serves as the first transverse wall of the methanol fuel tank. The second transverse wall is located at the front part of the cargo hold area near the bow and is parallel to the front wall of the engine room. The first longitudinal wall and the second longitudinal wall are located on the left and right sides of the second transverse wall. The inner bottom plate serves as a wall panel, and the second wall panel is located directly above the inner bottom plate and is parallel to the inner bottom plate.
[0006] Furthermore, a third transverse wall parallel to the first transverse wall is arranged at a distance A translated toward the bow, and A is greater than 900mm; a fourth transverse wall parallel to the second transverse wall is arranged at a distance B translated toward the stern, and B is greater than 900mm; the third longitudinal wall and the fourth longitudinal wall are arranged at a distance C translated toward the middle of the ship respectively by the first longitudinal wall and the second longitudinal wall, and C is greater than 900mm; the third wall plate is arranged at a distance D translated upward from the inner bottom plate, and D is greater than 900mm; the fourth wall plate is arranged at a distance E translated downward from the second wall plate, and D is greater than 900mm; the values of A, B, C, D, and E are consistent, and the third transverse wall, the fourth transverse wall, the third longitudinal wall, the fourth longitudinal wall, the third wall plate, and the fourth wall plate together constitute the methanol fuel tank enclosure wall.
[0007] Furthermore, the third transverse wall extends from the third wall plate to the lower end surface of the freeboard 5 deck in the cargo hold area, the fourth transverse wall is located between the third wall plate and the fourth wall plate, the first wall plate is located between the first transverse wall and the second transverse wall, the second wall plate is located between the third transverse wall and the second transverse wall, the first longitudinal wall and the second longitudinal wall are located between the inner bottom plate and the freeboard 5 deck, and the third longitudinal wall and the fourth longitudinal wall are located between the third wall plate and the fourth wall plate; the isolation air tanks around the methanol fuel tank are located between the methanol fuel tank surrounding wall and the outer wall of the isolation tank.
[0008] Furthermore, multiple layers of isolation cabin platforms are arranged in the height direction in the isolation cabin, and life-saving passage openings are arranged on each layer of the isolation cabin platform to form a life-saving passage in the isolation cabin.
[0009] Furthermore, the arrangement of the life-saving channel openings is as follows: the isolation void cabin platform located at the stern position is arranged with three life-saving channel openings along the ship width direction, one on each of the starboard and port sides, and one at the midship position; the isolation void cabin platform located at the bow position is arranged with three life-saving channel openings along the ship width direction, one on each of the starboard and port sides, and one at the midship position; two life-saving channel openings are arranged on the isolation void cabin platform located on the starboard and port sides along the ship length direction, and the number and position of the openings at the same position of each platform are the same.
[0010] Furthermore, the fuel oil tank and the methanol daily service tank are located between the second wall plate and the freeboard 5 deck, and the second wall plate is the lower surrounding wall plate of the fuel oil tank and the methanol daily service tank.
[0011] Furthermore, the methanol daily tank is surrounded by a stern isolation tank, a bow isolation tank, a top isolation tank, a bottom isolation tank, a port isolation tank and a starboard isolation tank. The stern isolation tank is surrounded by the third transverse wall and the front wall of the engine room, the bow isolation tank is surrounded by the methanol daily tank bulkhead and the fifth transverse wall, the bottom isolation tank is an isolation tank located on the top of the methanol fuel tank, the top isolation tank is surrounded by the freeboard 5 deck and the top bulkhead of the methanol daily tank, and the port isolation tank and the starboard isolation tank are respectively surrounded by the first longitudinal wall and the second longitudinal wall and the methanol daily tank bulkhead. This effectively reduces the space problem of the layout of the methanol fuel tank, fuel tank, methanol discharge tank and methanol daily tank, increases the vehicle loading capacity, and increases the 10% loading capacity of the methanol fuel tank.
[0012] Furthermore, vertically intersecting anti-sway transverse bulkheads and anti-sway longitudinal bulkheads are provided inside the methanol fuel tank, and both the anti-sway transverse bulkheads and anti-sway longitudinal bulkheads are corrugated bulkheads with isosceles trapezoidal waveforms, and the width of the isosceles trapezoid at the intersection of the anti-sway transverse bulkhead and the anti-sway longitudinal bulkhead is greater than the width of the isosceles trapezoids on both sides thereof.
[0013] Furthermore, the methanol discharge tank is located at the top of the methanol fuel tank near the stern side, the fourth wall plate is its top plate, and the third transverse wall, the third longitudinal wall and the fourth longitudinal wall are its side plates; in the isolation empty tanks around the methanol fuel tank and the methanol daily tank, multiple isolation tank platforms are spaced apart at the bow, and manholes are opened on the isolation tank platforms.
[0014] The dual-fuel ship cabin layout of the present invention solves a series of problems in the layout, construction, escape, etc. of the methanol fuel tank of the roll-on / roll-off ship, and reduces the influence of the methanol liquid in the cabin on the stability of the ship due to the swaying of the free liquid surface, thereby ensuring the effective utilization of the ship's space, reducing the number of isolation cabins, saving the effective space of the ship, improving the life-saving space of the isolation cabin, improving the construction environment, and also increasing the ship's loading capacity.
[0015] The present invention takes advantage of the limited space of the roll-on / roll-off ship and uses an effective isolation tank to cleverly design the fuel tank, effectively reducing the space occupied by the fuel tank and increasing the vehicle loading capacity. In addition, the liquid sloshing during fuel liquid operation is calculated and analyzed, and the influence of body sloshing on stability is reduced through special bulkhead design, and the problem of reducing the impact of free liquid surface sloshing of methanol liquid in the tank on the stability of the ship is solved.
[0016] Due to the number of vehicles required for the ro-ro ship, it is impossible to arrange large-capacity oil tanks and separate methanol tanks in the engine room area. Therefore, in the limited space, the cabin layout is based on the 7th, 11th, 8th and 12th wall panels of the methanol tank inner wall to form a methanol tank, and then the 6th, 1st, 5th and 2nd outer walls are arranged 1200mm outward. The area formed is the isolation cabin. The isolation cabin is used to form a construction platform by adding isolation cabin platforms, transverse grids and ladders. Combined with the platform manholes and grid manholes inside the isolation cabin, a complete escape route is formed. In addition, the longitudinal and transverse bulkheads of the methanol tank can effectively decompose the liquid in the entire methanol tank into several compartment partitions, which can effectively reduce the large sloshing of the liquid in the methanol tank during the operation of the ship. From the perspective of liquid sloshing stability, the longitudinal and transverse corrugated bulkheads are provided with lightening holes, and the impact stress of the liquid sloshing in the cabin is decomposed through the lightening holes, and the stability of the ship is reduced due to the sloshing of the free liquid surface of the methanol liquid in the cabin. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A longitudinal cross-sectional view of the dual-fuel ship cabin arrangement according to the present invention; Figure 2 It is a transverse cross-sectional view of the dual-fuel ship cabin arrangement according to the present invention; Figure 3 This is a top view of the methanol fuel tank described in the present invention.
[0018] Among them, 1-methanol fuel tank, 2-fuel tank, 3-methanol discharge tank, 4-methanol daily tank, 5-freeboard 5 deck, 6-inner bottom plate, 7-engine room front wall, 8-reserved space, 9-second wall plate, 10-second transverse wall, 11-first longitudinal wall, 12-second longitudinal wall, 13-third transverse wall, 14-fourth transverse wall, 15-third longitudinal wall, 16-fourth longitudinal wall, 17-third wall plate, 18-fourth wall plate, 19-isolated empty compartment, 20-anti-sway transverse bulkhead, 21-anti-sway longitudinal bulkhead, 22-fifth transverse wall, 23-isolated compartment platform, 24-personnel passage opening. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0020] A dual-fuel ship cabin layout, the cabin comprising a methanol fuel tank 1, a fuel oil tank 2, a methanol discharge tank 3 and a methanol daily tank 4, the methanol fuel tank 1, the fuel oil tank 2 and the methanol daily tank 4 are all located in the cargo tank area below the freeboard 5 deck 5 and above the inner bottom plate 6 of the cargo tank area, the engine room front wall 7 is close to the bow side, the fuel oil tank 2 and the methanol daily tank 4 are located above the methanol fuel tank 1, and the fuel oil tank 2 is located in the bow direction, and the methanol daily tank 4 is located in the stern direction, a reserved space 8 used as a passage is provided between the fuel oil tank 2 and the methanol daily tank 4, isolation empty tanks are provided around the methanol fuel tank 1, and the methanol discharge tank 3 is built in the methanol fuel tank 1.
[0021] The outer wall of the isolation compartment includes a first transverse wall, a second transverse wall 10, a first longitudinal wall 11, a second longitudinal wall 12, a first wall panel and a second wall panel 9. The engine room front wall 7 serves as the first transverse wall of the methanol fuel tank 1. The second transverse wall 10 is located in the front part of the cargo hold area near the bow and is parallel to the engine room front wall 7. The first longitudinal wall 11 and the second longitudinal wall 12 are located on the left and right sides of the second transverse wall 10. The inner bottom plate 6 serves as a wall panel. The second wall panel 9 is located directly above the inner bottom plate 6 and is spaced parallel to the inner bottom plate 6.
[0022] A third transverse wall 13 is arranged parallel to the first transverse wall at a distance A translated toward the bow, and A is greater than 900 mm; a fourth transverse wall 14 is arranged parallel to the second transverse wall 10 at a distance B translated toward the stern, and B is greater than 900 mm; a third longitudinal wall 15 and a fourth longitudinal wall 16 are arranged at a distance C translated toward the middle of the ship respectively, and C is greater than 900 mm; a third wall plate 17 is arranged at a distance D translated upward from the inner bottom plate 6, and D is greater than 900 mm; a fourth wall plate 18 is arranged at a distance E translated downward from the second wall plate 9, and D is greater than 900 mm; the values of A, B, C, D, and E are consistent, and the third transverse wall 13, the fourth transverse wall 14, the third longitudinal wall 15, the fourth longitudinal wall 16, the third wall plate 17, and the fourth wall plate 18 together constitute the methanol fuel tank enclosure.
[0023] The third transverse wall 13 extends from the third wall plate 17 to the lower end surface of the freeboard 5 deck 5 of the cargo hold area, the fourth transverse wall 14 is located between the third wall plate 17 and the fourth wall plate 18, the first wall plate is located between the first transverse wall and the second transverse wall 10, the second wall plate 9 is located between the third transverse wall 13 and the second transverse wall 10, the first longitudinal wall 11 and the second longitudinal wall 12 are located between the inner bottom plate 6 and the freeboard 5 deck 5, the third longitudinal wall 15 and the fourth longitudinal wall 16 are located between the third wall plate 17 and the fourth wall plate 18; the isolation empty tank 19 around the methanol fuel tank 1 is located between the surrounding wall of the methanol fuel tank 1 and the outer wall of the isolation tank.
[0024] Multiple layers of isolation void cabin platforms are arranged in the height direction in the isolation void cabin 19, and life-saving passage openings are arranged on each layer of isolation void cabin platforms to form a life-saving passage in the isolation void cabin; the life-saving passage openings are arranged in such a manner that the isolation void cabin platform located at the stern position is provided with three life-saving passage openings along the ship width direction, one on each of the port and starboard sides, and one at the midship position; the isolation void cabin platform located at the bow position is provided with three life-saving passage openings along the ship width direction, one on each of the port and starboard sides, and one at the midship position; two life-saving passage openings are arranged on the isolation void cabin platforms located at the port and starboard sides along the ship length direction, and the number and position of the openings at the same position of each layer of the platform are the same.
[0025] The fuel tank 2 and the methanol daily tank 4 are located between the second wall plate 9 and the freeboard deck 5 , and the second wall plate 9 is the lower surrounding wall plate of the fuel tank 2 and the methanol daily tank 4 .
[0026] A stern isolation tank, a bow isolation tank, a top isolation tank, a bottom isolation tank, a port isolation tank and a starboard isolation tank are respectively arranged around the methanol daily tank 4. The stern isolation tank is surrounded by the third transverse wall 13 and the front wall 7 of the engine room, the bow isolation tank is surrounded by the bulkhead of the methanol daily tank 4 and the fifth transverse wall 22, the bottom isolation tank is an isolation tank located on the top of the methanol fuel tank 1, the top isolation tank is surrounded by the freeboard 5 deck 5 and the top bulkhead of the methanol daily tank 4, and the port side isolation tank and the starboard side isolation tank are respectively surrounded by the first longitudinal wall 11 and the second longitudinal wall 12 and the bulkhead of the methanol daily tank 4.
[0027] A vertically intersecting anti-sway transverse bulkhead 20 and an anti-sway longitudinal bulkhead 21 are provided inside the methanol fuel tank 1. Both the anti-sway transverse bulkhead 20 and the anti-sway longitudinal bulkhead 21 are corrugated bulkheads with isosceles trapezoidal waveforms. The width of the isosceles trapezoid at the intersection of the anti-sway transverse bulkhead 20 and the anti-sway longitudinal bulkhead 21 is greater than the width of the isosceles trapezoids on both sides thereof.
[0028] The methanol discharge tank 3 is located at the top of the methanol fuel tank 1 near the stern side, the fourth wall plate 18 is its top plate, and the third transverse wall 13, the third longitudinal wall 15 and the fourth longitudinal wall 16 are its side plates; in the isolation empty tanks around the methanol fuel tank 1 and the methanol daily tank 4, multiple isolation tank platforms 23 are arranged at intervals, and manholes are opened on the isolation tank platforms 23.
[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims
1. A dual-fuel ship cabin layout, characterized in that: The cabins include a methanol fuel tank, a fuel oil tank, a methanol discharge tank and a methanol daily tank. The methanol fuel tank, the fuel oil tank and the methanol daily tank are all located in the cargo hold area near the bow side of the front wall of the engine room above the inner bottom plate below the freeboard 5 deck of the cargo hold area. The fuel oil tank and the methanol daily tank are located above the methanol fuel tank, and the fuel oil tank is located in the bow direction, and the methanol daily tank is located in the stern direction. A reserved space for a passage is provided between the fuel oil tank and the methanol daily tank. Isolation empty tanks are provided around the methanol fuel tank, and the methanol discharge tank is built into the methanol fuel tank.
2. A dual-fuel ship cabin arrangement according to claim 1, characterized in that: The outer wall of the isolation tank includes a first transverse wall, a second transverse wall, a first longitudinal wall, a second longitudinal wall, a first wall panel and a second wall panel. The front wall of the engine room serves as the first transverse wall of the methanol fuel tank. The second transverse wall is located at the front part of the cargo hold area close to the bow and is parallel to the front wall of the engine room. The first longitudinal wall and the second longitudinal wall are located on the left and right sides of the second transverse wall. The inner bottom plate serves as a wall panel. The second wall panel is located directly above the inner bottom plate and is parallel to the inner bottom plate.
3. A dual-fuel ship cabin arrangement according to claim 2, characterized in that: A third transverse wall parallel to the first transverse wall is arranged at a distance A translated toward the bow, and A is greater than 900mm; a fourth transverse wall parallel to the second transverse wall is arranged at a distance B translated toward the stern, and B is greater than 900mm; the third and fourth longitudinal walls are arranged at a distance C translated toward the midship of the first and second longitudinal walls respectively, and C is greater than 900mm; the third wall plate is arranged at a distance D translated upwards on the inner bottom plate, and D is greater than 900mm; the fourth wall plate is arranged at a distance E translated downwards from the second wall plate, and D is greater than 900mm, and the values of A, B, C, D and E are consistent. The third transverse wall, the fourth transverse wall, the third longitudinal wall, the fourth longitudinal wall, the third wall plate and the fourth wall plate together constitute the methanol fuel tank enclosure.
4. A dual-fuel ship cabin arrangement according to claim 3, characterized in that: The third transverse wall extends from the third wall plate to the lower end surface of the freeboard 5 deck in the cargo hold area, the fourth transverse wall is located between the third wall plate and the fourth wall plate, the first wall plate is located between the first transverse wall and the second transverse wall, the second wall plate is located between the third transverse wall and the second transverse wall, the first longitudinal wall and the second longitudinal wall are located between the inner bottom plate and the freeboard 5 deck, the third longitudinal wall and the fourth longitudinal wall are located between the third wall plate and the fourth wall plate; the isolation air tanks around the methanol fuel tank are located between the methanol fuel tank surrounding wall and the outer wall of the isolation tank.
5. A dual-fuel ship cabin arrangement according to claim 1, characterized in that: Multiple layers of isolation cabin platforms are arranged in the height direction in the isolation cabin, and life-saving passage openings are arranged on each layer of the isolation cabin platform to form a life-saving passage in the isolation cabin.
6. A dual-fuel ship cabin arrangement according to claim 5, characterized in that: The arrangement of the life-saving passage openings is as follows: the isolation void cabin platform located at the stern position is arranged with three life-saving passage openings along the ship width direction, one on each of the starboard and port sides, and one at the midship position; the isolation void cabin platform located at the bow position is arranged with three life-saving passage openings along the ship width direction, one on each of the starboard and port sides, and one at the midship position; two life-saving passage openings are arranged on the isolation void cabin platforms located on the starboard and port sides along the ship length direction, and the number and position of the openings at the same position of each platform are the same.
7. A dual-fuel ship cabin arrangement according to claim 4, characterized in that: The fuel oil tank and methanol daily service tank are located between the second wall plate and the freeboard 5 deck, and the second wall plate is the lower surrounding wall plate of the fuel oil tank and the methanol daily service tank.
8. A dual-fuel ship cabin arrangement according to claim 7, characterized in that: A stern isolation tank, a bow isolation tank, a top isolation tank, a bottom isolation tank, a port isolation tank and a starboard isolation tank are respectively arranged around the methanol daily tank. The stern isolation tank is surrounded by the third transverse wall and the front wall of the engine room, the bow isolation tank is surrounded by the methanol daily tank bulkhead and the fifth transverse wall, the bottom isolation tank is an isolation tank located on the top of the methanol fuel tank, the top isolation tank is surrounded by the freeboard 5 deck and the top bulkhead of the methanol daily tank, and the port side isolation tank and the starboard side isolation tank are respectively surrounded by the first longitudinal wall and the second longitudinal wall and the methanol daily tank bulkhead.
9. A dual-fuel ship cabin arrangement according to claim 1, characterized in that: Vertically intersecting anti-sway transverse bulkheads and anti-sway longitudinal bulkheads are provided inside the methanol fuel tank. Both the anti-sway transverse bulkheads and the anti-sway longitudinal bulkheads are corrugated bulkheads with isosceles trapezoidal waveforms. The width of the isosceles trapezoid at the intersection of the anti-sway transverse bulkhead and the anti-sway longitudinal bulkhead is greater than the width of the isosceles trapezoids on both sides thereof.
10. A dual-fuel ship cabin arrangement according to claim 1, characterized in that: The methanol discharge tank is located at the top of the methanol fuel tank near the stern, with the fourth wall plate as its top plate, and the third transverse wall, the third longitudinal wall and the fourth longitudinal wall as its side plates; in the isolation empty tanks around the methanol fuel tank and the methanol daily tank, multiple isolation tank platforms are arranged at intervals of the bow, and manholes are opened on the isolation tank platforms.