Leak-proof device for methanol storage tank of ship

Abstract

The utility model relates to the field of fuel storage, in particular to a leak-proof device for a ship methanol storage tank, which comprises a storage tank, a plurality of partition plates are integrally fixed on the inner side of the storage tank at equal intervals from top to bottom, the partition plates divide the inner side of the storage tank into a plurality of independent storage spaces, and a gas guide tube vertically and fixedly penetrates through the middle of the storage tank and vertically penetrates through the partition plates. The part, located on the inner side of each independent storage space, of the air guide pipe is provided with an air guide hole, the part, close to the air guide holes, of the air guide pipe is internally provided with a sealing structure, and the top of the air guide pipe is provided with an elastic opening and closing structure connected with the multiple sealing structures. Synchronous opening and closing of the multiple independent storage spaces can be achieved, the leakage prevention performance of the storage tank can be greatly improved through multi-layer sealing, even if methanol leakage occurs in the independent storage space at the top, stable sealing of other independent storage spaces is not prone to being affected, and the continuous leakage phenomenon can be basically avoided.

Description

Technical Field

[0001] This utility model relates to a leak prevention device for a ship methanol storage tank, and particularly to a leak prevention device for a ship methanol storage tank applied in the field of fuel storage. Background Technology

[0002] Methanol is a transparent, colorless, flammable, and toxic liquid with a slight alcoholic odor. It is miscible with water, ethanol, ether, benzene, acetone, and most organic solvents. When mixed with air, it is prone to explosion when exposed to heat or open flame. Due to its dangerous chemical properties, methanol is usually stored in designated tanks, which are called methanol storage tanks.

[0003] Regarding methanol storage tanks, a search revealed, for example, a methanol storage tank disclosed in patent publication number CN220333445U, comprising an explosion-proof inner tank and a buffer spring. The explosion-proof inner tank is surrounded by a sealed outer tank, which is further protected by a protective sleeve. Corner protection pads are provided at each of the four corners of the upper and lower walls of the protective sleeve, and auxiliary buffer pads are provided around the corner protection pads on the side furthest from the central axis of the protective sleeve. The buffer spring is located in the middle of the side of the corner protection pad furthest from the central axis of the protective sleeve. This methanol storage tank with a transport protection structure facilitates protection during transport, ensuring the integrity and normal use of the tank in the event of a collision. The device facilitates quick clamping and handling of the equipment, reducing the clamping force required for handling and thus lowering the risk of tank damage. This device also enhances the equipment's sealing performance, helps avoid affecting the packing efficiency, and prevents methanol leakage that could cause safety hazards.

[0004] Based on the above search and combined with the existing technology, it was found that the internal space of the methanol storage tank in the existing technology is integrated. Once a leak occurs, if it is not stopped in time, it will continue to leak, which poses a great safety hazard. Therefore, a leak prevention device for ship methanol storage tanks is proposed to improve the above problems. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that the internal space of existing methanol storage tanks is integrated. Once a leak occurs, if it is not stopped in time, it will lead to continuous leakage and pose a significant safety hazard.

[0006] To address the aforementioned problems, this utility model provides a leak-proof device for a ship's methanol storage tank, comprising the storage tank:

[0007] The inner side of the storage tank is fixed with multiple partitions at equal intervals from top to bottom, which divide the inner side of the storage tank into multiple independent storage spaces.

[0008] A gas guide pipe is vertically fixed through the middle of the storage tank. The gas guide pipe vertically passes through multiple partitions, and the part of the gas guide pipe located inside each independent storage space is provided with a gas guide hole.

[0009] The air duct has a sealing structure inside near the air duct hole;

[0010] The top of the air duct is equipped with a flexible opening and closing structure that connects to multiple sealing structures;

[0011] The end of the gas delivery pipe located on the upper side of the storage tank is detachably connected to a sealing cap.

[0012] In the aforementioned ship methanol storage tank leak prevention device, multiple baffles are installed to divide the inner side of the tank into multiple independent storage spaces. The elastic opening and closing structure at the top of the gas duct, in conjunction with the corresponding sealing structure of each independent storage space, enables the simultaneous opening and closing of multiple independent storage spaces. Furthermore, the multi-layer sealing greatly improves the leak prevention performance of the tank. Even if methanol leaks from the top independent storage space, it is unlikely to affect the stable sealing of other independent storage spaces, thus largely preventing the occurrence of continuous leakage.

[0013] As a further improvement to this application, the sealing structure includes a guide ring and a sealing block;

[0014] The air guide ring is fixed to the inner wall of the air guide tube. The sealing block is located on the lower side of the air guide ring and is connected to the elastic opening and closing structure. The sealing block is set on the same axis as the air guide ring, and the diameter of the sealing block is larger than the inner diameter of the air guide ring and smaller than the inner diameter of the air guide tube.

[0015] A sealing ring is fixed to the upper end of the sealing block, and the inner diameter of the sealing ring is larger than the inner diameter of the air guide ring.

[0016] As a further improvement to this application, the flexible opening and closing structure includes a vertical rod, a pressure cap, a limiting ring, and a compression spring;

[0017] The limiting ring is fixed to the inner wall of the air guide tube, the pressure cap is fixed to the upper end of the limiting ring by a compression spring, and the upright is vertically fixed through multiple sealing blocks in sequence, with the top of the upright fixed to the pressure cap.

[0018] The diameter of the pressure cap is smaller than the inner diameter of the air guide tube, and the top surface of the pressure cap is lower than the top surface of the air guide tube. The inner diameters of the limiting ring and the air guide ring are both larger than the diameter of the upright.

[0019] As a further improvement to this application, each independent storage space is equipped with a pressure monitoring device, which is installed on the inner wall of the storage tank.

[0020] As a further improvement of this application, the storage tank includes an explosion-proof tank body and a protective tank body. The baffle and the gas guide pipe are both located inside the explosion-proof tank body, and the protective tank body is fixed to the outside of the explosion-proof tank body. The gas guide pipe passes through the protective tank body and reaches the top.

[0021] As a further improvement of this application, a protective ring is fixed to the top of the protective tank. The protective ring is sleeved on the outside of the air duct. When the sealing cap is closed on the top of the air duct, the top surface of the sealing cap is lower than the top surface of the protective ring.

[0022] As a further improvement of this application, a first positioning ring is fixed coaxially at the top of the protective tank, and a second positioning ring is fixed coaxially at the bottom of the protective tank, with the first positioning ring and the second positioning ring fitting together.

[0023] As another improvement of this application, a cavity is left between the explosion-proof tank and the protective tank, and the cavity is filled with fire extinguishing agent.

[0024] In summary, by setting multiple partitions to divide the inner side of the storage tank into multiple independent storage spaces, and utilizing the elastic opening and closing structure at the top of the gas duct in conjunction with the corresponding sealing structure of each independent storage space, the simultaneous opening and closing of multiple independent storage spaces can be achieved. Moreover, the multi-layer sealing can greatly improve the leakage prevention performance of the storage tank. Even if methanol leaks from the independent storage space at the top, it is unlikely to affect the stable sealing of other independent storage spaces, and the occurrence of continuous leakage can be basically avoided. Furthermore, the double-layer setting of the explosion-proof tank body and the protective tank body can further improve the stability of the storage tank for methanol. Even in the event of an accidental explosion, the fire extinguishing agent in the cavity between the explosion-proof tank body and the protective tank body can effectively suppress the fire and reduce the fire caused by the explosion. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the first embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the bottom structure of the first embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure in the storage state according to the first embodiment of this application;

[0028] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0029] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0030] Figure 6 This is a schematic diagram of the methanol inlet / outlet tube in the extended state according to the first embodiment of this application.

[0031] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0032] Figure 8 for Figure 6 A magnified structural diagram at point D.

[0033] Explanation of the labels in the diagram:

[0034] 1. Storage tank, 101. Explosion-proof tank body, 102. Protective tank body, 2. Baffle, 3. Air guide pipe, 301. Air guide hole, 31. Vertical rod, 32. Pressure cap, 33. Limiting ring, 34. Compression spring, 35. Air guide ring, 36. Sealing block, 37. Fixing ring, 38. Limiting guide rod, 4. Sealing cover, 5. Protective ring, 6. First positioning ring, 7. Second positioning ring, 8. Air pressure monitor. Detailed Implementation

[0035] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0036] Implementation method 1:

[0037] Figure 1-3 The diagram shows a leak-proof device for a ship's methanol storage tank, comprising a storage tank 1. Multiple partitions 2 are integrally fixed at equal intervals from top to bottom on the inner side of the storage tank 1, dividing the inner side of the storage tank 1 into multiple independent storage spaces. A gas guide pipe 3 is vertically fixed through the middle of the storage tank 1, penetrating the multiple partitions 2. Each portion of the gas guide pipe 3 located inside each independent storage space is provided with a gas guide hole 301. A sealing structure is provided inside the gas guide pipe 3 near the gas guide hole 301. An elastic opening and closing structure connected to the multiple sealing structures is provided at the top of the gas guide pipe 3. A sealing cap 4 is detachably connected to the upper end of the gas guide pipe 3 on the storage tank 1.

[0038] Based on the above configuration of the partition 2, the flexible opening and closing structure, and the sealing structure, the inner side of the storage tank 1 is divided into multiple independent storage spaces by multiple partitions 2. The flexible opening and closing structure at the top of the gas duct 3, in conjunction with the sealing structure corresponding to each independent storage space, enables the simultaneous opening and closing of multiple independent storage spaces. Furthermore, the multi-layer sealing greatly improves the leak-proof performance of the storage tank 1. Even if methanol leaks from the top independent storage space, it is unlikely to affect the stable sealing of other independent storage spaces, thus largely preventing the occurrence of continuous leakage.

[0039] Among them, such as Figure 5 and Figure 8 As shown, the sealing structure includes a guide ring 35 and a sealing block 36. The guide ring 35 is fixed to the inner wall of the guide pipe 3. The sealing block 36 is located on the lower side of the guide ring 35 and is connected to the elastic opening and closing structure. The sealing block 36 is coaxially arranged with the guide ring 35, and the diameter of the sealing block 36 is larger than the inner diameter of the guide ring 35 and smaller than the inner diameter of the guide pipe 3. A sealing ring is fixed at the upper end of the sealing block 36, and the inner diameter of the sealing ring is larger than the inner diameter of the guide ring 35.

[0040] Among them, such as Figure 4 and Figure 6 As shown, the elastic opening and closing structure includes a vertical rod 31, a pressure cap 32, a limiting ring 33, and a compression spring 34. The limiting ring 33 is fixed to the inner wall of the air guide tube 3. The pressure cap 32 is fixed to the upper end of the limiting ring 33 by the compression spring 34. The vertical rod 31 is vertically fixed through multiple sealing blocks 36 in sequence, and the top of the vertical rod 31 is fixed to the pressure cap 32. The diameter of the pressure cap 32 is smaller than the inner diameter of the air guide tube 3, and the top surface of the pressure cap 32 is lower than the top surface of the air guide tube 3. The inner diameters of the limiting ring 33 and the air guide ring 35 are both larger than the diameter of the vertical rod 31.

[0041] Based on the above structural configuration, in storage mode, such as Figure 3 As shown, under the action of the compression spring 34, the upright 31, along with multiple sealing blocks 36, abuts against the gas guide ring 35, achieving relative sealing of each independent storage space; when methanol is taken out or added, the methanol take-out / put-out pipe extends into the top of the gas guide pipe 3, as shown. Figure 6 As shown, the methanol inlet / outlet pipe squeezes the cap 32, causing the upright rod 31 to move down synchronously with multiple sealing blocks 36, separating from the gas guide ring 35. At this time, each independent storage space is connected, enabling the stable addition or removal of methanol.

[0042] In order to monitor methanol in each independent storage space in real time, a pressure monitor 8 is installed in each independent storage space. The pressure monitor 8 is installed on the inner wall of the storage tank 1. Of course, the pressure monitor 8 is connected to an external display device using existing conventional technology to achieve remote real-time monitoring.

[0043] Among them, such as Figure 3 As shown, the storage tank 1 includes an explosion-proof tank body 101 and a protective tank body 102. The baffle 2 and the gas guide pipe 3 are both disposed inside the explosion-proof tank body 101, and the protective tank body 102 is fixed to the outside of the explosion-proof tank body 101. The gas guide pipe 3 passes through the protective tank body 102 to reach the top. Through the double-layer arrangement of the explosion-proof tank body 101 and the protective tank body 102, the stability of methanol stored in the storage tank 1 can be further improved.

[0044] Among them, such as Figure 1 As shown, a protective ring 5 is fixed to the top of the protective tank 102. The protective ring 5 is sleeved on the outside of the air duct 3. When the sealing cover 4 is closed on the top of the air duct 3, the top surface of the sealing cover 4 is lower than the top surface of the protective ring 5.

[0045] like Figure 1 and Figure 2 As shown, a first positioning ring 6 is coaxially fixed to the top of the protective tank 102, and a second positioning ring 7 is coaxially fixed to the bottom of the protective tank 102. The first positioning ring 6 and the second positioning ring 7 are sleeved together to facilitate the stable stacking of multiple storage tanks 1.

[0046] Compared to existing technologies, this solution divides the inner side of the storage tank 1 into multiple independent storage spaces by setting multiple partitions 2. The elastic opening and closing structure at the top of the gas duct 3, combined with the corresponding sealing structure of each independent storage space, enables the simultaneous opening and closing of multiple independent storage spaces. The multi-layer sealing greatly improves the leak-proof performance of the storage tank 1. Even if methanol leaks from the top independent storage space, it is unlikely to affect the stable sealing of other independent storage spaces, thus basically avoiding the occurrence of continuous leakage. Furthermore, the double-layer setting of the explosion-proof tank body 101 and the protective tank body 102 can further improve the stability of the storage tank 1 in storing methanol.

[0047] The second implementation method: Considering that the storage tank 1 still has a certain probability of explosion, a cavity is left between the explosion-proof tank 101 and the protective tank 102, and the cavity is filled with a fire extinguishing agent. The fire extinguishing agent is a conventional fire extinguishing agent in the prior art, such as water or any other fire extinguishing agent that will not react with methanol. Even if an explosion accident occurs, the fire extinguishing agent in the cavity between the explosion-proof tank 101 and the protective tank 102 can effectively suppress the fire and reduce the fire caused by the explosion.

[0048] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A ship methanol tank leakage prevention device, comprising a tank (1), characterized in that: a plurality of partitions (2) are integrally fixed on the inner side of the tank (1) at equal intervals from top to bottom, and the inner side of the tank (1) is divided into a plurality of independent storage spaces by the partitions (2); a gas guide pipe (3) is vertically fixed through the middle of the tank (1), vertically penetrates the partitions (2), and the part of the gas guide pipe (3) inside each independent storage space is provided with a gas guide hole (301); a sealing structure is arranged inside the gas guide pipe (3) near the gas guide hole (301); an elastic opening and closing structure connected with the sealing structure is arranged at the top of the gas guide pipe (3); and an end of the gas guide pipe (3) on the upper side of the tank (1) is detachably connected with a sealing cover (4). The sealing structure comprises a gas guide ring (35) and a sealing block (36); the gas guide ring (35) is fixed with the inner wall of the gas guide pipe (3), the sealing block (36) is located on the lower side of the gas guide ring (35) and connected with the elastic opening and closing structure, the sealing block (36) is coaxial with the gas guide ring (35), the diameter of the sealing block (36) is greater than the inner diameter of the gas guide ring (35) and less than the inner diameter of the gas guide pipe (3); and a sealing ring is fixed on the upper end of the sealing block (36), and the inner diameter of the sealing ring is greater than the inner diameter of the gas guide ring (35). The elastic opening and closing structure comprises a vertical rod (31), a pressing cap (32), a limiting ring (33) and a compression spring (34); the limiting ring (33) is fixed with the inner wall of the gas guide pipe (3), the pressing cap (32) is fixed on the upper end of the limiting ring (33) through the compression spring (34), the vertical rod (31) is vertically fixed through the sealing blocks (36) in sequence, and the top end of the vertical rod (31) is fixed with the pressing cap (32); the diameter of the pressing cap (32) is less than the inner diameter of the gas guide pipe (3), the top surface of the pressing cap (32) is lower than the top surface of the gas guide pipe (3), and the inner diameters of the limiting ring (33) and the gas guide ring (35) are greater than the diameter of the vertical rod (31). A gas pressure monitor (8) is arranged in each independent storage space, and the gas pressure monitor (8) is installed on the inner wall of the tank (1). The tank (1) comprises an explosion-proof tank body (101) and a protective tank body (102), the partitions (2) and the gas guide pipe (3) are arranged on the inner side of the explosion-proof tank body (101), the protective tank body (102) is fixed on the outer side of the explosion-proof tank body (101), and the gas guide pipe (3) penetrates the protective tank body (102) to obtain a top part. A protective ring (5) is fixed on the top end of the protective tank body (102), the protective ring (5) is sleeved on the outer side of the gas guide pipe (3), and the top surface of the sealing cover (4) is lower than the top surface of the protective ring (5) in the state that the sealing cover (4) covers the top part of the gas guide pipe (3).

2. A leakage-proof device for a methanol tank of a ship according to claim 1, characterized in that: ​ ​ ​ 3. A leakage-proof device for a methanol tank of a ship according to claim 2, characterized in that: ​ ​ ​ 4. The anti-leakage device for a methanol storage tank of a ship according to claim 1, characterized in that: ​ 5. The anti-leakage device for a methanol storage tank of a ship according to claim 1, characterized in that: ​ 6. A leakage-proof device for a methanol tank of a ship according to claim 5, characterized in that: ​ 7. A leakage-proof device for a methanol tank of a ship according to claim 5, characterized in that: The top end of the protective tank body (102) is coaxially fixed with a first positioning ring (6), and the bottom end of the protective tank body (102) is coaxially fixed with a second positioning ring (7), and the first positioning ring (6) is sleeved with the second positioning ring (7).

8. A leakage-proof device for a methanol tank of a ship according to claim 5, characterized in that: The explosion-proof tank body (101) and the protective tank body (102) are left with a cavity, and the cavity is filled with a fire extinguishing agent.

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