Land thin film liquid hydrogen storage tank with high-vacuum insulation box

Abstract

The utility model relates to the technical field of liquid hydrogen storage containers, and discloses a land film liquid hydrogen storage tank with a high-vacuum insulation box, which comprises an inner-layer composite tank, an outer-layer steel tank is sleeved on the outer side of the inner-layer composite tank, and a vacuum gap is arranged between the inner-layer composite tank and the outer-layer steel tank. A plurality of ceramic temperature-resistant plates are fixedly connected to the side wall of the outer-layer thermal insulation box in an inserted mode, ceramic temperature-resistant columns are fixedly installed on the side walls of the ceramic temperature-resistant plates, the ends of the ceramic temperature-resistant columns are fixedly connected with the outer side wall of the inner-layer composite tank, and the outer-layer steel tank and the inner-layer composite tank are jointly provided with a vacuumizing assembly. A material pipe is fixedly connected to the top of the inner-layer composite tank in an inserted mode, and a first sealing valve is installed in the material pipe. According to the liquid hydrogen storage tank, transmission of high temperature into the inner-layer composite tank can be reduced as much as possible, the storage safety of liquid hydrogen is improved, and meanwhile, anti-collision protection can be conducted on the storage tank.

Description

Technical Field

[0001] The present application relates to the technical field of liquid hydrogen storage containers, and in particular to a land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box. Background Art

[0002] Land-based membrane liquid hydrogen storage tanks use advanced composite material technology and are composed of an inner layer of high-strength polymer film and an outer layer of reinforcement material. The inner layer of the film has good air tightness and liquid hydrogen penetration barrier effect, and the outer layer of reinforcement material is used to enhance the strength and pressure resistance of the storage tank.

[0003] At present, although the existing land-based membrane liquid hydrogen storage tanks can meet the storage and transportation needs of liquid hydrogen, the temperature barrier of the composite material and the inner film is still relatively limited, especially in transportation under hot weather. If there is no higher external temperature resistance, the external high temperature will pass through the tank and be transmitted to the inside of the tank, affecting the safety of use to a certain extent. The traditional use of vacuum interlayer can further block the influence of external high temperature, but some of the high temperature will still be transmitted to the inner layer of the tank through the connection point of the inner and outer layers, resulting in poor use effect. Utility Model Content

[0004] The purpose of this application is to solve the problem that if there is no higher external temperature resistance in the prior art, the external high temperature will be transmitted through the storage tank to the inside of the storage tank, which will affect the safety of use to a certain extent. Although the traditional use of vacuum interlayer can further block the influence of external high temperature, part of the high temperature will still be transmitted to the inner layer of the storage tank through the connection point of the inner and outer layers, resulting in poor use effect. A land-based thin film liquid hydrogen storage tank with a high vacuum insulation box is proposed.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] A land-based thin-film liquid hydrogen storage tank with a high-vacuum insulation box comprises an inner composite tank, an outer steel tank is sleeved on the outer side of the inner composite tank, a vacuum gap is arranged between the inner composite tank and the outer steel tank, a plurality of ceramic temperature-resistance plates are fixedly inserted into the side wall of the outer thermal insulation box, a ceramic temperature-resistance column is fixedly installed on the side wall of each of the ceramic temperature-resistance plates, and the end of each ceramic temperature-resistance column is fixedly connected to the outer side wall of the inner composite tank, a vacuum pumping assembly is installed together with the outer steel tank and the inner composite tank, a material pipe is fixedly inserted into the top of the inner composite tank, and a first sealing valve is installed inside the material pipe.

[0007] Preferably, a plurality of vertically arranged rubber pads are fixedly mounted on the outer side wall of the outer steel tank, and an anti-collision strip is fixedly mounted on the side wall of each rubber pad.

[0008] Preferably, the vacuum pumping assembly includes an inner vacuum pumping tube fixedly inserted into the side wall of the inner composite tank, the side wall of the outer steel tank is integrally provided with an outer vacuum pumping tube, and the inner vacuum pumping tube and the outer vacuum pumping tube are coaxially designed, a second sealing valve is installed inside the inner vacuum pumping tube, and a gate valve is installed inside the outer vacuum pumping tube.

[0009] Preferably, an inner film is fixedly mounted on the inner wall of the inner composite tank, and the end of the inner vacuum tube is arranged to penetrate the side wall of the inner film.

[0010] Preferably, the bottom of the material tube is arranged to penetrate the top of the inner film.

[0011] Preferably, a protective tube is integrally formed on the top of the outer steel tank, and a detachable protective cover is installed at the end of the protective tube.

[0012] Compared with the prior art, the present application provides a land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box, which has the following beneficial effects:

[0013] 1. The land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box can effectively reduce the transmission of external high temperature to the inside of the inner composite tank through the mutual cooperation of the inner composite tank, the outer steel tank, the vacuum spacer, the ceramic temperature resistance plate, the ceramic temperature resistance column, the material pipe and the first sealing valve, and the vacuum design of the inner and outer layers. The connection point between the inner composite tank and the outer steel tank adopts a temperature-resistant connector, which, in conjunction with the vacuum spacer, can reduce the transmission of high temperature to the inside of the inner composite tank as much as possible, thereby improving the storage safety of liquid hydrogen.

[0014] 2. The land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box can provide anti-collision protection for the side wall of the outer steel tank through the cooperation of the rubber pads and anti-collision strips, reduce the impact of external impact on the entire storage tank, and further improve the storage safety of liquid hydrogen.

[0015] Moreover, the parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present application can reduce the transmission of high temperature to the inside of the inner composite tank as much as possible, improve the storage safety of liquid hydrogen, and at the same time, provide anti-collision protection for the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a land-based membrane liquid hydrogen storage tank with a high vacuum insulation box proposed in this application;

[0017] Figure 2 A land-based membrane liquid hydrogen storage tank with a high vacuum insulation box proposed in this application Figure 1 A magnified view of the structure of part A.

[0018] In the figure: 1. Inner composite tank; 2. Outer steel tank; 3. Vacuum spacer; 4. Ceramic temperature resistance plate; 5. Ceramic temperature resistance column; 6. Material pipe; 7. First sealing valve; 8. Rubber gasket; 9. Anti-collision strip; 10. Inner vacuum tube; 11. Outer vacuum tube; 12. Second sealing valve; 13. Gate valve; 14. Inner film; 15. Protective tube; 16. Protective cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0020] Reference Figure 1 , Figure 2 A land-based thin-film liquid hydrogen storage tank with a high-vacuum insulation box comprises an inner composite tank 1, an outer steel tank 2 is sleeved on the outer side of the inner composite tank 1, a vacuum gap 3 is arranged between the inner composite tank 1 and the outer steel tank 2, a plurality of ceramic temperature-resistance plates 4 are fixedly inserted into the side wall of the outer insulation box, a ceramic temperature-resistance column 5 is fixedly installed on the side wall of each ceramic temperature-resistance plate 4, and the end of each ceramic temperature-resistance column 5 is fixedly connected to the outer side wall of the inner composite tank 1, a vacuum pumping component is installed together with the outer steel tank 2 and the inner composite tank 1, a material pipe 6 is fixedly inserted into the top of the inner composite tank 1, and a first sealing valve 7 is installed inside the material pipe 6.

[0021] The outer side wall of the outer steel tank 2 is fixedly mounted with a plurality of vertically arranged rubber pads 8, and the side wall of each rubber pad 8 is fixedly mounted with an anti-collision strip 9. This arrangement can provide anti-collision protection for the outer steel tank 2.

[0022] The vacuum pumping assembly includes an inner vacuum pumping tube 10 fixedly plugged into the side wall of the inner composite tank 1, and the side wall of the outer steel tank 2 is integrally provided with an outer vacuum pumping tube 11, and the inner vacuum pumping tube 10 and the outer vacuum pumping tube 11 are coaxially designed, and a second sealing valve 12 is installed inside the inner vacuum pumping tube 10, and a gate valve 13 is installed inside the outer vacuum pumping tube 11. First, align the suction end of the vacuum pumping equipment with the inner vacuum pumping tube 10, and open the second sealing valve 12. At this time, the inner composite tank 1 can be vacuumed. After vacuuming, close the second sealing valve 12. Subsequently, dock the suction end of the vacuum pumping equipment with the outer vacuum pumping tube 11, and the vacuum interval 3 can be vacuumed. Subsequently, close the gate valve 13.

[0023] An inner film 14 is fixedly mounted on the inner wall of the inner composite tank 1, and the end of the inner vacuum tube 10 penetrates the side wall of the inner film 14. This arrangement ensures that the inner composite tank 1 can be vacuumed.

[0024] The bottom of the material pipe 6 is arranged to penetrate the top of the inner film 14 . This arrangement ensures that the liquid hydrogen can smoothly enter the inner film 14 .

[0025] The top of the outer steel tank 2 is integrally formed with a protective tube 15, and a detachable protective cover 16 is installed at the end of the protective tube 15. Through this arrangement, the material tube 6 can be isolated and protected.

[0026] In the present application, when in use, liquid hydrogen can be stored inside the inner composite tank 1 through the material pipe 6, and the vacuum gap 3 between the outer steel tank 2 and the inner composite tank 1 can block the external high temperature from being transferred to the inner composite tank 1. Ceramic temperature resistance plates 4 and ceramic temperature resistance columns 5 are used at each connection point between the inner composite tank 1 and the outer steel tank 2, which can reduce the heat transfer efficiency of the external high temperature through the connection point between the inner composite tank 1 and the outer steel tank 2 to the inside of the inner composite tank 1 as much as possible, thereby improving the protection effect of liquid hydrogen.

[0027] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box, comprising an inner composite tank (1), characterized in that: The outer side of the inner composite tank (1) is sleeved with an outer steel tank (2), a vacuum spacer (3) is provided between the inner composite tank (1) and the outer steel tank (2), a plurality of ceramic temperature-resistance plates (4) are fixedly plugged into the side wall of the outer thermal insulation box, a ceramic temperature-resistance column (5) is fixedly installed on the side wall of each of the ceramic temperature-resistance plates (4), and the end of each of the ceramic temperature-resistance columns (5) is fixedly connected to the outer side wall of the inner composite tank (1), a vacuum pumping assembly is installed together with the outer steel tank (2) and the inner composite tank (1), a material pipe (6) is fixedly plugged into the top of the inner composite tank (1), and a first sealing valve (7) is installed inside the material pipe (6).

2. A land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box according to claim 1, characterized in that: A plurality of vertically arranged rubber pads (8) are fixedly mounted on the outer side wall of the outer steel tank (2), and an anti-collision strip (9) is fixedly mounted on the side wall of each rubber pad (8).

3. A land-based thin-film liquid hydrogen storage tank with a high vacuum insulation box according to claim 1, characterized in that: The vacuum pumping assembly comprises an inner vacuum pumping tube (10) fixedly plugged into the side wall of the inner composite tank (1); the side wall of the outer steel tank (2) is integrally formed with an outer vacuum pumping tube (11); the inner vacuum pumping tube (10) and the outer vacuum pumping tube (11) are coaxially designed; a second sealing valve (12) is installed inside the inner vacuum pumping tube (10); and a gate valve (13) is installed inside the outer vacuum pumping tube (11).

4. A land-based membrane liquid hydrogen storage tank with a high vacuum insulation box according to claim 1, characterized in that: An inner film (14) is fixedly mounted on the inner wall of the inner composite tank (1), and the end of the inner vacuum tube (10) is arranged to penetrate the side wall of the inner film (14).

5. A land-based membrane liquid hydrogen storage tank with a high vacuum insulation box according to claim 4, characterized in that: The bottom of the material tube (6) is arranged to penetrate the top of the inner film (14).

6. The land-based membrane liquid hydrogen storage tank with a high vacuum insulation box according to claim 1, characterized in that: The top of the outer steel tank (2) is integrally formed with a protective tube (15), and a detachable protective cover (16) is installed at the end of the protective tube (15).

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