Arrangement of cargo ship bunker

Abstract

The utility model provides a kind of arrangement structure of cargo ship fuel tank, including ship body, the main deck of the tail portion of ship body is provided with fuel tank above, the bottom of fuel tank is provided with bottom gap, the main deck is closed the bottom gap to replace the bottom of fuel tank;The outer periphery of fuel tank is provided with isolated empty cabin, the isolated empty cabin is divided into upper cabin body and lower cabin body, the upper cabin body is located the above of main deck, the lower cabin body is located the below of main deck.The arrangement structure of cargo ship fuel tank, the bottom gap of fuel tank is closed by main deck, to make main deck replace the bottom of fuel tank, further lower cabin body in isolated empty cabin is set in the below of main deck, and lower cabin body and the original reinforcing member below main deck jointly constitute the reinforcing structure of fuel tank, to greatly reduce the use of structural steel material, reduce construction cost, reduce fuel tank gravity center simultaneously, ensure ship structure safety.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank arrangement technology, and in particular to an arrangement structure for a cargo ship's fuel tank. Background Technology

[0002] For methanol fuel tanks located above the main deck, conventional designs include an isolated compartment at least 1 meter high at the bottom of the tank above the main deck. (See [reference needed]). Figure 3 .

[0003] The existing fuel tank layout described above has the following disadvantages:

[0004] Isolating the bilge compartments would raise the methanol tank as a whole, increasing the center of gravity of the methanol tank and making it difficult to control the overall center of gravity of the ship. At the same time, with the methanol fuel tanks located above the main deck, a large number of truss steel structures need to be arranged below the main deck to reinforce the main deck and ensure the strength and safety of the main deck structure, thus increasing the steel weight of the hull.

[0005] Therefore, in order to solve the above problems, this utility model proposes a cargo ship fuel tank layout structure that can lower the center of gravity of the fuel tank, reduce the reinforcing structure of the fuel tank, and reduce construction costs. Utility Model Content

[0006] To address the technical problems existing in the layout structure of the above-mentioned fuel tanks, this utility model provides a layout structure for the fuel tanks of cargo ships.

[0007] According to one objective of this utility model, this utility model provides an arrangement structure for a cargo ship's fuel tank, including a hull, a fuel tank being provided above the main deck at the stern of the hull, a bottom notch being provided at the bottom of the fuel tank, and the main deck closing the bottom notch to replace the bottom of the fuel tank;

[0008] An isolation compartment is provided around the fuel tank. The isolation compartment is divided into an upper compartment and a lower compartment. The upper compartment is located above the main deck, and the lower compartment is located below the main deck. A passage opening is provided on the main deck to connect the upper compartment and the lower compartment.

[0009] A reinforcing member is provided below the main deck, and the lower hull and the reinforcing member are continuously arranged and support the fuel tank.

[0010] Preferably, the reinforcing member is a truss structure;

[0011] Below the main deck is a cabin, and continuous reinforcing members are provided on the lateral sides and top of the cabin's inner wall, wherein the reinforcing members located at the top of the cabin's inner wall are provided on the lateral sides of the lower cabin.

[0012] Preferably, there is a height difference between the lower end face of the reinforcing member at the top of the cabin inner wall and the lower end face of the lower cabin body, and the connection between the reinforcing member and the lower cabin body is a smooth transition.

[0013] Preferably, the thickness of the reinforcing member at the top of the cabin inner wall and the thickness of the reinforcing members on both sides of the cabin inner wall gradually increase towards the connection point.

[0014] Preferably, the thickness of the reinforcing members on both sides of the inner wall of the cabin gradually increases towards the bottom of the inner wall of the cabin.

[0015] Preferably, the fuel tank has a longitudinal trough-shaped bulkhead in the middle, which connects the upper bulkhead and the lower bulkhead of the fuel tank.

[0016] Preferably, the cross-sectional shape of the trough-shaped bulkhead is an isosceles trapezoid.

[0017] Preferably, the inner wall of the channel opening is flush with the wall of the isolation chamber.

[0018] Preferably, the height of the isolation chamber is not less than 1 meter.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The cargo ship's fuel tank layout involves sealing the bilge opening of the fuel tank via the main deck, allowing the main deck to replace the bilge of the fuel tank. Furthermore, the lower hull, located in the isolated compartment, is situated below the main deck. The lower hull and the existing reinforcing components below the main deck together form the reinforcing structure of the fuel tank, thereby significantly reducing the use of structural steel, lowering construction costs, and simultaneously lowering the center of gravity of the fuel tank to ensure the structural safety of the ship.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram from one perspective of the arrangement structure of a cargo ship fuel tank according to the present invention.

[0023] Figure 2 This is a schematic diagram from another perspective of the arrangement structure of a cargo ship fuel tank according to the present invention.

[0024] Figure 3 This is a schematic diagram of the fuel tanks of an existing cargo ship. Detailed Implementation

[0025] The following description is intended to provide a detailed account of the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] Please see Figure 1-2 This utility model provides a technical solution: an arrangement structure for a cargo ship's fuel tank, including a hull 100, a fuel tank 300 arranged above the main deck 200 at the stern of the hull 100, a bottom notch 301 provided at the bottom of the fuel tank 300, and the main deck 200 closing the bottom notch 301 to replace the bottom of the fuel tank 300.

[0027] An isolation compartment 400 is provided around the fuel tank 300. The isolation compartment 400 is divided into an upper compartment 401 and a lower compartment 402. The upper compartment 401 is located above the main deck 200, and the lower compartment 402 is located below the main deck 200. The main deck 200 has a passage opening 201 that connects the upper compartment 401 and the lower compartment 402 to ensure the passage requirements of the isolation compartment 400 around the fuel tank 300.

[0028] A reinforcing member 500 is provided below the main deck 200, and the lower hull 402 and the reinforcing member 500 are continuously arranged and support the fuel tank 300.

[0029] The main deck 200 closes the bottom opening 301 of the fuel tank 300, allowing the main deck 200 to replace the bottom of the fuel tank 300. Furthermore, the lower hull 402 in the isolation compartment 400 is placed below the main deck 200. The lower hull 402 and the original reinforcing member 500 below the main deck 200 together form the reinforcing structure of the fuel tank 300, thereby greatly reducing the use of structural steel, lowering construction costs, and lowering the center of gravity of the fuel tank 300 to ensure the structural safety of the ship.

[0030] In this embodiment, the fuel tank 300 is a methanol tank, and the height of the isolation chamber 400 is not less than 1 meter.

[0031] For the specific construction of reinforcement 500, please refer to [link / reference]. Figure 1 The reinforcing member 500 is a truss structure;

[0032] Below the main deck 200, an engine room 600 is provided. The engine room 600 has continuous reinforcing members 500 on its inner walls on both sides and top. The reinforcing members 500 located on the top of the inner walls of the engine room 600 are located on both sides of the lower hull 402.

[0033] Furthermore, a height difference is provided between the lower end face of the reinforcing member 500 at the top of the inner wall of the engine compartment 600 and the lower end face of the lower compartment 402, and the connection between the reinforcing member 500 and the lower compartment 402 is a smooth transition. In this embodiment, the lower end face of the reinforcing member 500 at the top of the inner wall of the engine compartment 600 is lower than the lower end face of the lower compartment 402. This ensures that the overall reinforcing structure composed of the reinforcing member 500 and the lower compartment 402 can provide stable support for the fuel tank 300.

[0034] Furthermore, the thickness of the reinforcing member 500 at the top of the inner wall of the cabin 600 and the thickness of the reinforcing members 500 on both sides of the inner wall of the cabin 600 gradually increase near the connection between the reinforcing member 500 at the top of the inner wall of the cabin 600 and the reinforcing members 500 on both sides of the inner wall of the cabin 600.

[0035] The thickness of the reinforcing members 500 on both sides of the inner wall of the cabin 600 gradually increases as they approach the bottom of the inner wall of the cabin 600.

[0036] See also Figure 1 Furthermore, a longitudinally oriented channel-shaped bulkhead 700 is provided in the middle of the fuel tank 300, connecting the upper and lower bulkheads of the fuel tank 300. Specifically, the channel-shaped bulkhead is made of pressed steel plate. Compared with flat bulkheads, the advantage of the channel-shaped bulkhead is that it can reduce structural weight and save steel while maintaining the same strength. Figure 1 As shown, in this embodiment, the cross-sectional shape of the trough-shaped bulkhead is an isosceles trapezoid.

[0037] Furthermore, the inner wall of the passage opening 201 is flush with the wall of the isolation chamber 400 to ensure the passage requirements of the isolation chamber 400 around the fuel tank 300.

[0038] The cargo ship's fuel tank layout uses the main deck 200 as the bottom of the fuel tank 300. The isolation compartment 400 at the bottom of the fuel tank 300 is located below the main deck 200. The isolation compartment 400 is part of the main deck 200 reinforcement 500 and also serves as a reinforcement structure under the fuel tank 300. Without affecting the fuel tank 300's capacity, the reinforcement structure of the fuel tank 300 is reduced, significantly reducing the use of structural steel, lowering construction costs, and simultaneously lowering the center of gravity of the fuel tank 300 to ensure the ship's structural safety.

[0039] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. An arrangement structure for fuel tanks on a cargo ship, characterized in that, The vessel includes a hull (100), and a fuel tank (300) is provided above the main deck (200) at the stern of the hull (100). The bottom of the fuel tank (300) is provided with a hull bottom notch (301), and the main deck (200) closes the hull bottom notch (301) to replace the hull bottom of the fuel tank (300). An isolation compartment (400) is provided around the fuel tank (300). The isolation compartment (400) is divided into an upper compartment (401) and a lower compartment (402). The upper compartment (401) is located above the main deck (200), and the lower compartment (402) is located below the main deck (200). The main deck (200) has a passage opening (201) connecting the upper compartment (401) and the lower compartment (402). A reinforcing member (500) is provided below the main deck (200), and the lower hull (402) and the reinforcing member (500) are continuously arranged and support the fuel tank (300).

2. The arrangement structure of a cargo ship fuel tank according to claim 1, characterized in that, The reinforcing member (500) is a truss structure; Below the main deck (200) is a cabin (600), and continuous reinforcing members (500) are provided on the lateral sides and top of the inner wall of the cabin (600), wherein the reinforcing member (500) located at the top of the inner wall of the cabin (600) is provided on the lateral sides of the lower cabin (402).

3. The arrangement structure of a cargo ship fuel tank according to claim 2, characterized in that, A height difference is provided between the lower end face of the reinforcing member (500) at the top of the inner wall of the cabin (600) and the lower end face of the lower cabin body (402), and the connection between the reinforcing member (500) and the lower cabin body (402) is a smooth transition.

4. The arrangement structure of a cargo ship fuel tank according to claim 2, characterized in that, The thickness of the reinforcing member (500) at the top of the inner wall of the cabin (600) and the thickness of the reinforcing member (500) on both sides of the inner wall of the cabin (600) gradually increase near the connection point.

5. The arrangement structure of a cargo ship fuel tank according to claim 2, characterized in that, The thickness of the reinforcing members (500) on both sides of the inner wall of the cabin (600) gradually increases near the bottom of the inner wall of the cabin (600).

6. The arrangement structure of a cargo ship fuel tank according to claim 1, characterized in that, The fuel tank (300) has a longitudinal trough-shaped bulkhead (700) in the middle, which is connected between the upper bulkhead and the lower bulkhead of the fuel tank (300).

7. The arrangement structure of a cargo ship fuel tank according to claim 6, characterized in that, The cross-sectional shape of the trough-shaped bulkhead is an isosceles trapezoid.

8. The arrangement structure of a cargo ship fuel tank according to claim 1, characterized in that, The inner wall of the channel opening (201) is flush with the wall of the isolation chamber (400).

9. The arrangement structure of a cargo ship fuel tank according to claim 1, characterized in that, The height of the isolation chamber (400) is not less than 1 meter.

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