High-pressure hydrogen storage tank

Abstract

The utility model provides a high-pressure hydrogen storage tank which comprises a tank body, two ends of the tank body are respectively provided with a sealing head and a sealing processing structure, the tank body comprises a tank body wall and a wall body with a long and narrow capsule-shaped section, a long and narrow section of the wall body is provided with a pre-welding side wall, and the pre-welding side wall is connected with a laminate wall; the hydrogen storage tank comprises a tank body, a plurality of layers of laminates and a pre-welded side wall, an inner tank body and a capsule-like wall body located in the tank body wall, the two ends of the capsule-like wall body are communicated, and the two ends of the inner tank body are communicated with a sealing head and a sealing processing structure respectively. The hydrogen storage box can be better suitable for storage and transportation of hydrogen.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage tank instruments and equipment, and specifically relates to a high-pressure hydrogen storage tank. Background Art

[0002] Hydrogen is a flammable and explosive gas that is difficult to store and transport. The tank used for its storage and transfer has high requirements for airtightness. Usually during transportation, the gas in the tank is in a compressed state, and the tank needs to have a strong ability to withstand external impact. When an ordinary single-layer plate hydrogen storage tank is in use, cracks or stress differences at some positions often occur due to aging and other reasons. Therefore, after cracks occur in an ordinary tank, it cannot be used, and its practicability during transportation is poor, and safety accidents are likely to occur.

[0003] To achieve the above object, the utility model provides a high-pressure hydrogen storage tank, which can solve the problems raised in the above background art. Content of the Utility Model

[0004] The utility model adopts the following technical solutions to achieve:

[0005] A high-pressure hydrogen storage tank includes a tank body, and a head 1 and a sealing treatment structure 7 are respectively arranged at both ends thereof. The tank body includes a tank wall 12, a wall body with a narrow and long capsule-shaped cross section. A pre-welded side wall 4 is arranged in the narrow and long section of the wall body, and a laminated wall 3 is connected to the pre-welded side wall 4;

[0006] An inner tank 5, which has a wall body similar to a capsule with both ends communicating, is located inside the tank wall 12. Both ends of the inner tank 5 are respectively communicated with the head 1 and the sealing treatment structure 7.

[0007] Preferably, the pre-welded side wall 4 is a stepped groove-shaped inner wall, and the laminated wall 3 is composed of multiple layers of laminates;

[0008] The multiple layers of laminates are successively wound around the tank wall 12 along the stepped position grooves of the pre-welded side wall 4, and the side surface of the laminated wall 3 is fixedly connected to the pre-welded side wall 4.

[0009] Preferably, the adjacent two layers of laminates stacked are fixed by pressing and friction.

[0010] Preferably, an air inlet connection port 6 is arranged between the head 1 and the tank wall 12, and inner sleeves 2 are respectively arranged between the sealing treatment structure 7, the air inlet connection port 6 and the inner tank 5. The inner sleeves 2 are narrow and long pipes.

[0011] Preferably, one end of the inner sleeve 2 on one side is communicated with the head 1, and the head 1 is a welded one-way valve head 1 for blocking the air inlet at this end after inflation is completed.

[0012] Preferably, one end of the inner sleeve 2 on one side is communicated with the sealing treatment structure 7, and the sealing treatment structure 7 is used to control the on-off of gas at one end. An exhaust passage 8 directly docked with the long and narrow inner sleeve 2 is provided on one side thereof, and a first plugging disc 10 is provided at the other end of the exhaust passage 8.

[0013] Preferably, a firing pin plugging passage 9 is communicated with one side of the pipeline of the exhaust passage 8, and a second plugging disc 11 is provided at the other end of the firing pin plugging passage 9 for air leakage inspection.

[0014] Preferably, when the thickness of the multi-layer laminate walls 3 is greater than that of the pre-welded side walls 4, the outer laminate is fixedly welded through the two side edges between the inner laminates.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the separate plugging effect between the multi-layer laminates and the pre-welded side walls 4, the present utility model improves the stress resistance of the hydrogen storage tank against puncture and external force bumps. And through the separate partition plugging method between the layers, the cracks in the tank body plate caused by the long service life are reduced. The laminated wrapping method can better adapt to the air leakage when cracks occur in the single-layer wall material. And when dealing with external force impacts, the separate rupture of the outer laminate wall 3 material can enable emergency continued use, improving the safety of the hydrogen tank during external transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic side cutting structure diagram of the overall structure of the present utility model.

[0018] In the figure: 1, head 1; 2, inner sleeve 2; 3, laminate wall 3; 4, pre-welded side wall 4; 5, inner tank body 5; 6, intake connection port 6; 7, sealing treatment structure 7; 8, exhaust passage 8; 9, firing pin plugging passage 9; 10, first plugging disc 10; 11, second plugging disc 11; 12, tank wall 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings, but the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] The following further details this utility model in conjunction with the accompanying drawings.

[0023] Please refer to the attached Figure 1 , including a tank body, with a head 1 and a sealing treatment structure 7 provided at both ends respectively. It is characterized in that: the tank body includes

[0024] a tank wall 12, a wall body with a long and narrow capsule-shaped cross-section. A pre-welded side wall 4 is provided in the long and narrow section of the wall body, and a laminate wall 3 is connected to the pre-welded side wall 4;

[0025] an inner tank 5, located inside the tank wall 12, having a wall body similar to a capsule with both ends communicating. The two ends of the inner tank 5 are respectively connected to the head 1 and the sealing treatment structure 7.

[0026] Please refer to Figure 1 , the pre-welded side wall 4 is a stepped groove-shaped inner wall, and the laminate wall 3 is composed of multiple layers of laminates;

[0027] The multiple layers of the laminates are wound around the tank wall 12 along the stepped position grooves of the pre-welded side wall 4 in sequence, and the side surface of the laminate wall 3 is fixedly connected to the pre-welded side wall 4;

[0028] Adjacent stacked layers of laminates are fixed by pressing and friction;

[0029] When the thickness of the multiple layers of the laminate wall 3 is greater than that of the pre-welded side wall 4, the outer layer of the laminate is fixedly connected by welding between the two side edges and the inner layer of the laminate.

[0030] Please refer to Figure 1 , an air inlet connection port 6 is provided between the head 1 and the tank wall 12. Inner sleeves 2 are respectively provided between the sealing treatment structure 7, the air inlet connection port 6 and the inner tank 5. The inner sleeves 2 are long and narrow pipes;

[0031] One end of the inner sleeve 2 on one side is communicated with the head 1, and the head 1 is a welded one-way valve head 1 for blocking the air inlet at this end after inflation is completed;

[0032] One end of the inner sleeve 2 on one side is communicated with the sealing treatment structure 7. The sealing treatment structure 7 is used to control the on-off of the gas at one end. An exhaust passage 8 directly docked with the long and narrow inner sleeve 2 is arranged on one side thereof. A plugging disc one 10 is arranged at the other end of the exhaust passage 8;

[0033] A firing pin plugging passage 9 is communicated with one side of the pipeline of the exhaust passage 8. A plugging disc two 11 is arranged at the other end of the firing pin plugging passage 9 for air leakage inspection.

[0034] The specific implementation manner of the present utility model is as follows:

[0035] The air inlet end of this hydrogen storage tank intakes air from the head 1 end. With the head 1 port facing downwards, gas is filled. After the gas in the inner tank body 5 is filled, the head 1 is mechanically blocked. Then, a probe is used to attempt to check the communication effect of the firing pin plugging passage 9 and the exhaust passage 8, and the plugging disc one 10 and the plugging disc two 11 are blocked; In addition, the laminating effect between the layer plate wall 3 and the pre-welded side wall 4 is formed by socket wrapping. As Figure 1 shown, they are arranged in sequence from the inside to the outside of the tank body wall 12. After the single-layer thickness matches the groove wall side of the pre-welded side wall 4, the widths of the multi-layer pre-welded side walls 4 with gradually increasing widths are welded to the side of the pre-welded side wall 4 in sequence.

[0036] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A high-pressure hydrogen storage tank, comprising a tank body, with a sealing head (1) and a sealing treatment structure (7) respectively provided at both ends thereof, characterized in that: The tank body comprises The tank wall (12) has a narrow and long capsule-shaped cross section, and a pre-welded side wall (4) is provided in the narrow and long section of the wall, and the pre-welded side wall (4) is connected to the layer wall (3); The inner tank body (5) is located inside the tank body wall (12) and has a capsule-like wall body with two ends connected. The two ends of the inner tank body (5) are respectively connected to the sealing head (1) and the sealing processing structure (7).

2. A high-pressure hydrogen storage tank according to claim 1, characterized in that: The pre-welded side wall (4) is a stepped groove-shaped inner wall, and the layer plate wall (3) is composed of multiple layers of layer plates; The multiple layers of the layer plates are wrapped around the tank wall (12) along the stepped position grooves of the pre-welded side wall (4) at one time, and the side surfaces of the layer plate walls (3) are fixedly connected to the pre-welded side wall (4).

3. A high-pressure hydrogen storage tank according to claim 2, characterized in that: Two adjacent stacked layers of board are fixed by compression and friction.

4. A high-pressure hydrogen storage tank according to claim 1, characterized in that: An air inlet connection port (6) is provided between the sealing head (1) and the tank wall (12), and an inner sleeve (2) is provided between the sealing treatment structure (7), the air inlet connection port (6) and the inner tank body (5), respectively. The inner sleeve (2) is a long and narrow pipe.

5. A high-pressure hydrogen storage tank according to claim 4, characterized in that: One end of the inner sleeve (2) on one side is connected to the sealing head (1), and the sealing head (1) is a welded one-way valve sealing head (1) used to seal the air inlet at this end after inflation is completed.

6. A high-pressure hydrogen storage tank according to claim 4, characterized in that: One end of the inner sleeve (2) on one side is connected to the sealing processing structure (7), and the sealing processing structure (7) is used to control the on-off of gas at one end. One side of the inner sleeve (2) is provided with an exhaust channel (8) directly connected to the narrow and long inner sleeve (2), and the other end of the exhaust channel (8) is provided with a sealing disk (10).

7. A high-pressure hydrogen storage tank according to claim 6, characterized in that: One side of the pipeline of the exhaust channel (8) is connected to a striker plugging channel (9), and the other end of the striker plugging channel (9) is provided with a plugging disk 2 (11) for leak detection.

8. A high-pressure hydrogen storage tank according to claim 2, characterized in that: When the thickness of the multi-layered layer board wall (3) is greater than the pre-welded side wall (4), the outer layer boards are fixed by welding the edges on both sides to the inner layer boards.

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