Lightweight high-pressure hydrogen tank

Abstract

The utility model relates to the technical field of hydrogen storage, and provides a light-weight high-pressure hydrogen tank, which comprises a sealing cover, an overpressure exhaust pipe, a tank body and a skirt, by adopting a high-strength and low-density composite material and combining with an optimally designed tank body structure, the mass hydrogen storage density of the hydrogen storage tank is improved, the storage time of hydrogen is prolonged, and the service life of the hydrogen storage tank is prolonged. The whole weight of the hydrogen storage tank is obviously reduced, the hydrogen storage tank is convenient to carry and replace, the transportation cost is reduced, the flexibility of hydrogen energy application is improved, the tank body is filled with a composite material and an anti-explosion agent, good air tightness and pressure resistance are achieved, and the safety of hydrogen in the storage and transportation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, in particular to a lightweight high-pressure hydrogen tank. Background Art

[0002] With the rapid development of the hydrogen energy industry, high-pressure hydrogen tanks are key equipment for hydrogen storage and transportation, and their performance has an important impact on the application scope and economy of hydrogen energy. However, existing high-pressure hydrogen tanks generally have problems such as low mass hydrogen storage density, heavy weight, and poor portability, which limit the large-scale application of hydrogen energy. Therefore, the development of a lightweight, high-hydrogen storage density high-pressure hydrogen tank has become a technical problem that the hydrogen energy industry needs to solve urgently. Summary of the invention

[0003] The purpose of the utility model is to provide a lightweight high-pressure hydrogen tank to overcome the problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A lightweight high-pressure hydrogen tank comprises a sealing cover, an overpressure exhaust pipe, a tank body and a skirt seat, wherein the sealing cover is installed on the top of the tank body, a threaded coil is provided below the sealing cover, the sealing cover is threadedly connected to the tank body through the threaded coil, the overpressure exhaust pipe is installed inside the tank body, the overpressure exhaust pipe passes through the sealing cover and is arranged inside the tank body, the overpressure exhaust pipe and the sealing cover are fixedly connected, the tank body comprises an inner tank and an outer tank, the inner tank is installed inside the outer tank, an anti-UV film is pasted on the inner wall of the outer tank, the skirt seat is installed at the bottom of the outer tank, and the skirt seat and the outer tank are fixedly connected to support the entire tank body.

[0006] Furthermore, a gas valve is provided on one side of the sealing cover, and a hydrogen inlet and outlet are provided on the other side of the sealing cover, and the inlet and outlet of hydrogen can be controlled by the gas valve;

[0007] A pressure gauge is provided on the front side of the sealing cover, and the pressure in the high-pressure hydrogen tank can be observed through the pressure gauge.

[0008] Furthermore, an overpressure exhaust valve is provided on one side of the overpressure exhaust pipe.

[0009] Furthermore, an interlayer is provided between the outer tank and the inner tank, and the interlayer can be filled with an explosion-proof agent.

[0010] Furthermore, an explosion-proof agent inlet is provided at the upper end of one side of the outer tank, and an explosion-proof agent outlet is provided at the lower end of the other side of the outer tank.

[0011] Furthermore, the material of the outer tank is one of aluminum alloy, iron-nickel alloy, zirconium-vanadium alloy and iron-titanium alloy.

[0012] Beneficial effects:

[0013] It can be seen from the above technical scheme that compared with the prior art, the utility model provides a lightweight high-pressure hydrogen tank, including a sealing cover, an overpressure exhaust pipe, a tank body and a skirt. By adopting high-strength, low-density composite materials and combining an optimized tank body structure, the mass hydrogen storage density of the hydrogen storage tank is improved, the storage time of hydrogen is extended, the overall weight of the hydrogen storage tank is significantly reduced, and it is easy to carry and replace, reducing transportation costs and improving the flexibility of hydrogen energy application. The tank body is filled with composite materials and explosion-proof agents, has good air tightness and pressure resistance, and ensures the safety of hydrogen during storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a lightweight high-pressure hydrogen tank of the utility model;

[0016] Figure 2 The accompanying drawing is a schematic structural diagram of a lightweight high-pressure hydrogen tank of the utility model with explosion-proof agent added. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] The utility model provides a lightweight high-pressure hydrogen tank, comprising a sealing cover 1, an overpressure exhaust pipe 2, a tank body and a skirt seat 6; the tank body comprises an inner tank 3 and an outer tank 4.

[0020] A sealing cover 1 is installed above the tank body, a gas valve 101 is provided on the right side of the sealing cover 1, the gas valve 101 and the sealing cover 1 are fixedly connected, a hydrogen inlet and outlet 102 is provided on the right side of the sealing cover 1, the hydrogen inlet and outlet 102 and the sealing cover 1 are fixedly connected, a threaded coil 104 is provided below the sealing cover 1, the sealing cover 1 is threadedly connected to the tank body through the threaded coil 104, and the gas valve 101 can control the opening and closing of the hydrogen inlet and outlet 102, and further control the inlet and outlet of hydrogen.

[0021] A pressure gauge 103 is provided on the front side of the sealing cover 1 . The pressure gauge 103 and the sealing cover 1 are welded together. The pressure value in the hydrogen tank can be observed through the pressure gauge 103 .

[0022] The overpressure exhaust pipe 201 passes through the sealing cover 1 and is inserted into the tank body. An overpressure exhaust valve 201 is provided on one side of the overpressure exhaust pipe 2. When the pressure value in the hydrogen tank is too large, the overpressure exhaust valve 201 can automatically open to output gas from the overpressure exhaust pipe 201.

[0023] The inner tank 3 is installed inside the outer tank 4 , and an interlayer 7 is formed between the inner tank 3 and the outer tank 4 . The inner tank 3 is used to store hydrogen, and the outer tank 4 is used to protect the inner tank 3 .

[0024] The outer tank 4 is made of aluminum alloy, iron-nickel alloy, zirconium-vanadium alloy or iron-titanium alloy, and an anti-UV film 5 is pasted on the inner wall of the outer tank 4, which can reduce the weight of the hydrogen tank while further ensuring that the outer tank 4 has excellent strength.

[0025] The skirt seat 6 is installed at the bottom of the outer tank 4, and the skirt seat 6 and the outer tank 4 are fixedly connected to support the entire tank body.

[0026] When in use, if hydrogen needs to be output, the gas valve 101 can be opened, and the hydrogen will be discharged from the hydrogen inlet and outlet 102. When storing hydrogen, the gas valve 101 is closed, and the hydrogen will be stored in the hydrogen tank. If the pressure value in the tank is too large, the overpressure exhaust valve 201 will automatically open to release hydrogen from the overpressure exhaust pipe 2. Figure 1 shown.

[0027] Example 2

[0028] The utility model provides a lightweight high-pressure hydrogen tank, comprising a sealing cover 1, an overpressure exhaust pipe 2, a tank body and a skirt seat 6; the tank body comprises an inner tank 3 and an outer tank 4.

[0029] A sealing cover 1 is installed above the tank body, a gas valve 101 is provided on the right side of the sealing cover 1, the gas valve 101 and the sealing cover 1 are fixedly connected, a hydrogen inlet and outlet 102 is provided on the right side of the sealing cover 1, the hydrogen inlet and outlet 102 and the sealing cover 1 are fixedly connected, a threaded coil 104 is provided below the sealing cover 1, the sealing cover 1 is threadedly connected to the tank body through the threaded coil 104, and the gas valve 101 can control the opening and closing of the hydrogen inlet and outlet 102, and further control the inlet and outlet of hydrogen.

[0030] A pressure gauge 103 is provided on the front side of the sealing cover 1 . The pressure gauge 103 and the sealing cover 1 are welded together. The pressure value in the hydrogen tank can be observed through the pressure gauge 103 .

[0031] The overpressure exhaust pipe 201 passes through the sealing cover 1 and is inserted into the tank body. An overpressure exhaust valve 201 is provided on one side of the overpressure exhaust pipe 2. When the pressure value in the hydrogen tank is too large, the overpressure exhaust valve 201 can automatically open to output gas from the overpressure exhaust pipe 201.

[0032] The inner tank 3 is installed inside the outer tank 4, and an interlayer 7 is formed between the inner tank 3 and the outer tank 4. The interlayer 7 can be filled with an explosion-proof agent, such as liquid water, liquid nitrogen or liquid carbon dioxide.

[0033] The upper end of one side of the outer tank 4 is provided with an explosion-proof agent inlet 701, and the lower end of the other side of the outer tank 4 is provided with an explosion-proof agent outlet 702. The inner tank 3 is used to store hydrogen, and the outer tank 4 is used to protect the inner tank 3. Figure 2 shown.

[0034] The outer tank 4 is made of aluminum alloy, iron-nickel alloy, zirconium-vanadium alloy or iron-titanium alloy, and an anti-UV film 5 is pasted on the inner wall of the outer tank 4, which can reduce the weight of the hydrogen tank while further ensuring that the outer tank 4 has excellent strength.

[0035] The skirt seat 6 is installed at the bottom of the outer tank 4, and the skirt seat 6 and the outer tank 4 are fixedly connected to support the entire tank body.

[0036] The utility model provides a lightweight high-pressure hydrogen tank, including a sealing cover, an overpressure exhaust pipe, a tank body and a skirt seat. By adopting high-strength, low-density composite materials and combining an optimized tank body structure, the mass hydrogen storage density of the hydrogen storage tank is improved, the storage time of hydrogen is prolonged, the overall weight of the hydrogen storage tank is significantly reduced, and it is easy to carry and replace, the transportation cost is reduced, and the flexibility of hydrogen energy application is improved. The tank body is filled with composite materials and explosion-proof agents, has good air tightness and pressure resistance, and ensures the safety of hydrogen during storage and transportation.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight high-pressure hydrogen tank, characterized in that: The invention comprises a sealing cover (1), an overpressure exhaust pipe (2), a tank body and a skirt seat (6), wherein the sealing cover (1) is installed on the top of the tank body, a threaded coil (104) is provided below the sealing cover (1), the sealing cover (1) is threadedly connected to the tank body through the threaded coil (104), the overpressure exhaust pipe (2) is installed inside the tank body, the overpressure exhaust pipe (2) penetrates the sealing cover (1) and is arranged inside the tank body, the overpressure exhaust pipe (2) and the sealing cover (1) are fixedly connected, the tank body comprises an inner tank (3) and an outer tank (4), the inner tank (3) is installed inside the outer tank (4), an anti-UV film (5) is adhered to the inner wall of the outer tank (4), the skirt seat (6) is installed at the bottom of the outer tank (4), the skirt seat (6) and the outer tank (4) are fixedly connected, and are used to support the entire tank body.

2. A lightweight high-pressure hydrogen tank according to claim 1, characterized in that: A gas valve (101) is provided on one side of the sealing cover (1), and a hydrogen inlet and outlet (102) is provided on the other side of the sealing cover (1), and the inlet and outlet of hydrogen can be controlled by the gas valve (101); A pressure gauge (103) is provided on the front side of the sealing cover (1), and the pressure in the high-pressure hydrogen tank can be observed through the pressure gauge (103).

3. A lightweight high-pressure hydrogen tank according to claim 1, characterized in that: An overpressure exhaust valve (201) is provided on one side of the overpressure exhaust pipe (2).

4. A lightweight high-pressure hydrogen tank according to claim 1, characterized in that: An interlayer (7) is provided between the outer tank (4) and the inner tank (3), and the interlayer (7) can be filled with an explosion-proof agent.

5. A lightweight high-pressure hydrogen tank according to claim 4, characterized in that: An explosion-proof agent inlet (701) is provided at the upper end of one side of the outer tank (4), and an explosion-proof agent outlet (702) is provided at the lower end of the other side of the outer tank (4).

6. A lightweight high-pressure hydrogen tank according to claim 1, characterized in that: The material of the outer tank (4) is one of aluminum alloy, iron-nickel alloy, zirconium-vanadium alloy and iron-titanium alloy.

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