Multi-adaptive liquid hydrogen cylinder vacuum failure active test equipment

Abstract

The utility model relates to a multi-adaptive liquid hydrogen cylinder vacuum failure active test device which comprises a liquid hydrogen cylinder body, an inflation assembly and a pressure relief valve. The vacuum interlayer is communicated with a detection valve and a vacuum sensor, and the inner container body is communicated with a pressure detector; the inflation assembly comprises an inflation bottle, a movable frame, a first lifting structure, a second lifting structure and a valve assembly, the first lifting structure and the second lifting structure are arranged on the movable frame, the first lifting structure is used for driving the inflation bottle to ascend and descend, and the second lifting structure is used for driving the valve assembly to ascend and descend; the downstream of the valve assembly is detachably connected with the vacuum interlayer; and the pressure relief valve is connected with the inner container body. According to the utility model, the inflation structure can be conveniently moved, namely, the inflation structure can be conveniently moved in the horizontal direction and the vertical direction, so that the inflation structure is very convenient to be matched with liquid hydrogen cylinders to be detected at other positions, and the detection process of adaptation of multiple positions can be quickly completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of special equipment container, specifically to a kind of equipment with the liquid hydrogen cylinder of multiple positions needing detection is conveniently adapted. BACKGROUND

[0002] Liquid hydrogen cylinder is a kind of high-pressure container for storing and transporting liquid hydrogen. Structural features: double-wall design: usually adopt inner and outer two-wall structure, vacuum insulation layer in the middle. This design can effectively reduce heat transfer, prevent liquid hydrogen from absorbing external heat and gasify, so as to maintain the low temperature state of liquid hydrogen. Valve and pipeline system: equipped with various valves and pipelines, such as liquid inlet valve, liquid outlet valve, safety valve, pressure gauge, etc. These valves and pipelines are used to control the functions of liquid hydrogen filling, discharge, pressure regulation and safety protection.

[0003] In the Chinese invention patent application file with application number 202210205565.8, a kind of liquid hydrogen cylinder vacuum failure active testing device and testing method are disclosed;The main innovation in this structure is to add an active inflation structure;However, it is found that the inflation structure is not convenient to use in practical application, on the one hand, it needs to consume more time and labor cost when moving each time, and cannot be quickly adapted to liquid hydrogen cylinders in different positions for detection;Moreover, it is not convenient when the inflation cylinder needs to be replaced, especially the disassembly and replacement of the connected valve assembly and inflation cylinder. UTILITY MODEL CONTENT

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the deficiencies in the prior art, and to provide a kind of equipment with the liquid hydrogen cylinder of multiple positions needing detection is conveniently adapted.

[0005] In order to achieve the above purpose, the utility model provides a kind of multi-adaptation type liquid hydrogen cylinder vacuum failure active testing equipment, including liquid hydrogen bottle body, inflation assembly and pressure relief valve;

[0006] The liquid hydrogen bottle body has an inner container and an outer shell, a vacuum interlayer is formed between the inner container and the outer shell, and the inner container is used to store liquid hydrogen;The vacuum interlayer is communicated with a detection valve and a vacuum sensor, and the inner container is communicated with a pressure detector;

[0007] The inflation assembly includes an inflation cylinder, a movable frame, a first lifting structure, a second lifting structure and a valve assembly, the movable frame is provided with the first lifting structure and the second lifting structure, the first lifting structure is used to drive the inflation cylinder to move up and down, the second lifting structure is used to drive the valve assembly to move up and down, and the downstream of the valve assembly is detachably connected with the vacuum interlayer;

[0008] The pressure relief valve is connected with the inner container.

[0009] One preferred solution is that a vacuum valve is connected to the vacuum interlayer, and the valve assembly has a manual valve which is detachably connected to the vacuum valve.

[0010] One preferred solution is that the first lifting structure has a first lifting screw, a first lifting block and a first guide slide, the first lifting block is arranged on the first lifting screw, and the first lifting block is slidably arranged on the first guide slide.

[0011] One preferred solution is that the first lifting block has a gripper structure for clamping and fixing the inflatable bottle.

[0012] One preferred solution is that the gripper structure has a clamping cylinder and a clamping plate, the clamping cylinder drives the clamping plate to act to clamp the inflatable bottle.

[0013] One preferred solution is that the clamping cylinder and the clamping plate are both two groups, and the two groups of clamping cylinders are respectively located at both sides of the inflatable bottle to complete the clamping action.

[0014] One preferred solution is that the gripper structure is two groups, and the two groups of gripper structures are respectively located at the upper and lower sides of the inflatable bottle.

[0015] One preferred solution is that the second lifting structure has a second lifting screw, a second lifting block and a guide frame, the second lifting block is arranged on the second lifting screw, and the second lifting block is slidably arranged in the guide frame; the second lifting block has a clamping portion, and the valve assembly is arranged on the clamping portion.

[0016] One preferred solution is that the guide frame is two groups, and the two groups of guide frames are respectively located at both sides of the second lifting block.

[0017] One preferred solution is that the bottom of the moving frame has a plurality of moving wheels.

[0018] The beneficial effects of the utility model are:

[0019] 1. The inflatable structure is convenient to move, that is, convenient to move horizontally and vertically, so when it is needed to match the inflatable structure to the liquid hydrogen cylinder to be detected at other positions, it is very convenient, that is, the detection process of multiple position adaptation can be quickly completed.

[0020] 2、When the new gas cylinder needs to be replaced, it is convenient to operate, only through the cooperation of the clamping structure and the lifting structure, the replacement of the new gas cylinder can be completed, and the gas cylinder and the valve assembly are also relatively independently arranged, and can be lifted and controlled respectively, when reaching the same height, the worker can complete the connection, that is, the port of the valve assembly is communicated with the gas cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0022] Figure 1 It is a whole connecting structure schematic diagram of a multi-adaptive liquid hydrogen cylinder vacuum failure active test equipment of the utility model;

[0023] Figure 2 It is a gas filling assembly structure schematic diagram of a multi-adaptive liquid hydrogen cylinder vacuum failure active test equipment of the utility model;

[0024] Figure 3 It is a gas filling assembly structure schematic diagram of a multi-adaptive liquid hydrogen cylinder vacuum failure active test equipment of the utility model; Figure 2 It is a structure schematic diagram of the enlarged A part in the middle;

[0025] Figure 4 It is a structure schematic diagram of a gas filling assembly of a multi-adaptive liquid hydrogen cylinder vacuum failure active test equipment of the utility model;

[0026] Mark explanation:

[0027] 10-liquid hydrogen bottle body;11-inner container body;12-outer shell;13-vacuum interlayer;14-detection valve;15-vacuum sensor;16-pressure detector;17-vacuum valve;18-liquid hydrogen adding structure;19-control valve;

[0028] 20-gas filling assembly;21-gas cylinder;22-moving frame;23-first lifting structure;231-first lifting lead screw;232-first lifting block;233-first guide slide;234-gripper structure;2341-clamping air cylinder;2342-clamping plate;24-second lifting structure;241-second lifting lead screw;242-second lifting block;243-guide frame;244-engaging portion;25-valve assembly;251-hand valve;26-moving wheel;

[0029] 30-pressure relief valve. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1 to 3 As shown, this utility model provides a multi-adaptive liquid hydrogen cylinder vacuum failure active testing device, including a liquid hydrogen cylinder body 10, a gas filling component 20 and a pressure relief valve 30;

[0032] The liquid hydrogen cylinder 10 has an inner liner 11 and an outer shell 12, with a vacuum interlayer 13 formed between the inner liner 11 and the outer shell 12. The inner liner 11 is used to store liquid hydrogen. The vacuum interlayer 13 is connected to a detection valve 14 and a vacuum sensor 15, and the inner liner 11 is connected to a pressure detector 16.

[0033] The inflation assembly 20 includes an inflation cylinder 21, a mobile frame 22, a first lifting structure 23, a second lifting structure 24, and a valve assembly 25. The first lifting structure 23 and the second lifting structure 24 are provided on the mobile frame 22. The first lifting structure 23 is used to drive the inflation cylinder 21 to move up and down, and the second lifting structure 24 is used to drive the valve assembly 25 to move up and down. The downstream of the valve assembly 25 is detachably connected to the vacuum interlayer 13.

[0034] The pressure relief valve 30 is connected to the inner liner 11.

[0035] In practical applications, the gas cylinder 21 actively introduces gas into the vacuum jacket 13 to disrupt the vacuum environment, which is then monitored by the vacuum sensor 15. Additionally, when pressure relief is needed, it is released through the pressure relief valve 30, thus releasing the pressure within the inner liner 11. This part is prior art and will not be elaborated upon here.

[0036] In addition, the inflation component 20 can be disassembled and separated from the liquid hydrogen cylinder 10, so that the inflation component 20 can be quickly moved to other positions to adapt to other liquid hydrogen cylinders 10. That is, the mobile frame 22 can drive the inflation cylinder 21 to move to adapt to liquid hydrogen cylinders 10 in different positions, thus facilitating application.

[0037] Preferably, it also includes a liquid hydrogen inlet structure 18 and a control valve 19. The liquid hydrogen inlet structure 18 is used to introduce liquid hydrogen into the liquid hydrogen cylinder 10.

[0038] The vacuum valve 17 is connected to the vacuum interlayer 13, and the valve assembly 25 has a manual valve 251 which is detachably connected to the vacuum valve 17. The manual valve 251 is connected to the vacuum valve 17 by a pipe which can be detached or connected as required, i.e. when the gas filling assembly 20 needs to be moved and adapted to other liquid hydrogen cylinders 10, the pipe between the manual valve 251 and the vacuum valve 17 is detached.

[0039] The first lifting structure 23 has a first lifting screw 231, a first lifting block 232 and a first guide slide 233. The first lifting block 232 is arranged on the first lifting screw 231 and is slidably arranged on the first guide slide 233. The first lifting screw 231 is driven by a motor to move the first lifting block 232 to achieve height adjustment of the gripper structure 234.

[0040] The first lifting block 232 has a gripper structure 234 for clamping and fixing the gas cylinder 21. In actual application, the height of the liquid hydrogen cylinder 10 is different, so that the height adjustment can be used to match the liquid hydrogen cylinder 10 at different height levels, and the use is more convenient. Moreover, the lifting control is beneficial to replace the new gas cylinder at a low position.

[0041] The gripper structure 234 has a clamping cylinder 2341 and a clamping plate 2342. The clamping cylinder 2341 drives the clamping plate 2342 to clamp the gas cylinder 21. The clamping and fixing of the gas cylinder 21 are facilitated by the cylinder control. In addition, the gripper structure 234 can also use other types of clamping structures.

[0042] The clamping cylinder 2341 and the clamping plate 2342 are both two groups, and the two groups of clamping cylinders 2341 are respectively located at both sides of the gas cylinder 21 to complete the clamping action.

[0043] The gripper structure 234 is two groups, and the two groups of gripper structures 234 are respectively located at the upper and lower sides of the gas cylinder 21.

[0044] The second lifting structure 24 has a second lifting screw 241, a second lifting block 242 and a guide frame 243. The second lifting block 242 is arranged on the second lifting screw 241 and is slidably arranged in the guide frame 243. The second lifting block 242 has a clamping portion 244, and the valve assembly 25 is arranged on the clamping portion 244. The height of the valve assembly 25 can be independently controlled, and the upstream end of the valve assembly 25 is detachably connected to the gas cylinder 21 by a pipe.

[0045] The guide frame 243 is in two groups, and the two groups of guide frames 243 are respectively located at two side positions of the second lifting block 242.

[0046] The bottom of the moving frame 22 is provided with a plurality of moving wheels 26. The moving wheels 26 facilitate the position movement of the whole frame.

[0047] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A multi-adaptive liquid hydrogen cylinder vacuum failure active test device, characterized in that, The utility model relates to a liquid hydrogen bottle (10) and a gas filling assembly (20), and a pressure relief valve (30) is connected to the inner container (11). The vacuum interlayer (13) is connected with a vacuum valve (17), and the valve assembly (25) is provided with a manual valve (251) which is detachably connected to the vacuum valve (17). The first lifting structure (23) is provided with a first lifting screw rod (231), a first lifting block (232) and a first guide slide rod (233), the first lifting block (232) is arranged on the first lifting screw rod (231), and the first lifting block (232) is slidably arranged on the first guide slide rod (233). The first lifting block (232) is provided with a gripper structure (234) for clamping and fixing the gas filling bottle (21).

2. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 1, wherein, The gripper structure (234) is provided with a clamping cylinder (2341) and a clamping plate (2342), the clamping cylinder (2341) drives the clamping plate (2342) to act to clamp the gas filling bottle (21).

3. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 1, wherein, The clamping cylinder (2341) and the clamping plate (2342) are both two groups, and the two groups of clamping cylinders (2341) are respectively located at both sides of the gas filling bottle (21) to complete clamping action.

4. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 3, wherein, The gripper structure (234) is two groups, and the two groups of gripper structures (234) are respectively located at upper and lower sides of the gas filling bottle (21).

5. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 4, wherein, The second lifting structure (24) is provided with a second lifting screw rod (241), a second lifting block (242) and a guide frame (243), the second lifting block (242) is arranged on the second lifting screw rod (241), and the second lifting block (242) is slidably arranged in the guide frame (243); the second lifting block (242) is provided with a clamping portion (244), and the valve assembly (25) is arranged on the clamping portion (244).

6. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 5, wherein, The guide frame (243) is two groups, and the two groups of guide frames (243) are respectively located at both sides of the second lifting block (242).

7. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 5, wherein, The bottom of the moving frame (22) is provided with a plurality of moving wheels (26).

8. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 1, wherein, ​ 9. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 8, wherein, ​ 10. The multi-configuration liquid hydrogen cylinder vacuum failure active test apparatus of claim 1, wherein, ​

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