Gas pressure-stabilizing explosion-proof structure and hydrogen storage device

Abstract

The invention discloses a gas pressure stabilizing explosion-proof structure and a hydrogen storage device, and relates to the technical field of hydrogen storage devices.The gas pressure stabilizing explosion-proof structure comprises a pressure relief pipe arranged on a hydrogen storage tank in a communicating mode, a pressure relief electromagnetic valve is arranged on the pressure relief pipe, a temporary storage assembly is arranged on one side of the pressure relief pipe, and the temporary storage assembly comprises a temporary storage tank arranged on one side of the pressure relief pipe; a gas inlet and outlet unit is arranged at the end, close to the pressure relief pipe, of the temporary storage tank, a communication unit is arranged at the end, close to the temporary storage tank, of the pressure relief pipe, a bearing unit used in cooperation with the temporary storage tank is arranged on one side of the hydrogen storage tank, and a monitoring unit is further arranged on the hydrogen storage tank. In the using process, when the monitoring unit monitors that the pressure intensity in the hydrogen storage tank is too large, part of hydrogen in the hydrogen storage tank can be led out into the temporary storage tank, the pressure intensity in the hydrogen storage tank is restored to the normal level, the temporary storage tank temporarily stores the hydrogen in the temporary storage tank at the moment, then a worker can take down the temporary storage tank from the bearing unit, and the temporary storage tank is used for storing the hydrogen in the temporary storage tank. Therefore, waste of a large amount of hydrogen is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage devices, and particularly relates to a gas pressure stabilizing and explosion-proof structure and a hydrogen storage device. Background Art

[0002] The common elemental form of hydrogen is hydrogen gas. It is a colorless, odorless, and tasteless gas composed of diatomic molecules that is extremely flammable. As a clean and renewable energy source, hydrogen has received increasing attention. After hydrogen production and preparation, it needs to be stored.

[0003] According to the patent with the application publication number CN221258534U, a hydrogen compression storage device is disclosed, which includes a storage and release mechanism for storing compressed hydrogen, and a protection mechanism for safety protection of the stored hydrogen is provided on the storage and release mechanism. The storage and release mechanism includes an outer tank and an inner tank. Connecting seats for connecting with the outer tank are provided at the upper and lower ends of the inner tank. A sandwich layer is provided between the outer tank and the inner tank, and a heat insulation layer is provided on the inner wall of the outer tank; the protection mechanism includes a cooling pipe wound around the outer wall of the inner tank. Through the sandwich-like setting of the inner tank and the outer tank, the cooling pipe is wound around the outer wall of the inner tank. When heat is generated in the inner tank due to hydrogen compression, the heat is transferred to the outside through the heat-conducting medium flowing in the cooling pipe to reduce the temperature of the inner tank. The pressure relief valve is used for pressure relief protection when the pressure reaches the pressure specification. At the same time, the influence of the temperature outside the outer tank on the inner tank is prevented through the heat insulation layer, improving the overall storage and release stability.

[0004] Although the above device uses structural components such as pressure pipes, pressure gauges, and pressure relief valves in cooperation to ensure the stability of the hydrogen pressure in the inner tank, when the hydrogen pressure in the inner tank is too high, pressure relief protection is carried out through the pressure relief valve. However, the pressure relief valve directly discharges a large amount of hydrogen into the air, resulting in waste of resources. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art: When the existing structural components carry out pressure relief protection on the hydrogen in the tank, a large amount of hydrogen is directly discharged into the air, resulting in waste of resources.

[0006] And a gas pressure stabilizing and explosion-proof structure and a hydrogen storage device are proposed.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A gas pressure stabilizing and explosion-proof structure includes a pressure relief pipe connected to a hydrogen storage tank. A pressure relief solenoid valve is arranged on the pressure relief pipe. A temporary storage assembly is arranged on one side of the pressure relief pipe. The temporary storage assembly includes a temporary storage tank arranged on one side of the pressure relief pipe. An air inlet and outlet unit is arranged at one end of the temporary storage tank close to the pressure relief pipe. A connection unit is arranged at one end of the pressure relief pipe close to the temporary storage tank. A receiving unit for cooperating with the temporary storage tank is arranged on one side of the hydrogen storage tank. A monitoring unit is also arranged on the hydrogen storage tank.

[0008] As a further technical solution of the present invention, the air inlet and outlet unit includes an installation through groove opened at one end of the temporary storage tank. A first installation cylinder is fixed on the inner wall of the installation through groove. One end of the first installation cylinder close to the pressure relief pipe is open. A plurality of first conveying through holes are opened on the inner wall of the first installation cylinder. A blocking mechanism is arranged in the first installation cylinder.

[0009] As a further technical solution of the present invention, the blocking mechanism includes a first piston movably arranged in the first installation cylinder. A first spring is fixed between the first piston and the inner wall of the first installation cylinder. One end of the first piston is fixed with a guide rod. One end of the guide rod movably penetrates through the first installation cylinder.

[0010] As a further technical solution of the present invention, the receiving unit includes a receiving frame arranged on one side of the hydrogen storage tank. An arc-shaped placement groove is opened on the upper end surface of the receiving frame. A lifting plate is movably arranged on the side of the receiving frame away from the hydrogen storage tank. A handle frame is fixed at the other end of the temporary storage tank. A positioning notch for cooperating with the handle frame is opened on the side wall of the lifting plate. An elastic reset unit is arranged between the receiving frame and the lifting plate.

[0011] As a further technical solution of the present invention, two T-shaped sliders are symmetrically fixed on one side of the lifting plate. Two T-shaped chutes are opened on the upper end surface of the receiving frame. The T-shaped sliders are slidably arranged in the T-shaped chutes. The elastic reset unit includes an L-shaped connecting plate fixed on the lower end surface of the lifting plate. Two second springs are fixed between the receiving frame and the L-shaped connecting plate.

[0012] As a further technical solution of the present invention, a fixed contact sleeve is arranged on the side of the receiving frame close to the hydrogen storage tank. Two connecting arms are symmetrically fixed on the outer surface of the fixed contact sleeve. The ends of the connecting arms are fixedly connected to the outer surface of the hydrogen storage tank.

[0013] As a further technical solution of the present invention, the connection unit includes an insertion tube movably arranged on one side of the hydrogen storage tank. A conveying hose is connected between the insertion tube and the pressure relief pipe. A plurality of second conveying through holes for cooperating with the first conveying through holes are opened on the outer surface of the insertion tube. A driving mechanism for cooperating with the insertion tube is arranged on the connecting arm. An end solenoid valve is arranged on the insertion tube.

[0014] As a further technical solution of the present invention, the driving mechanism includes an upper plate, which is fixed to the upper end surfaces of the two connecting arms, an electric push rod is fixed to the upper end surface of the upper plate, a connecting sleeve is fixed to the outer surface of the insert, a connecting block is fixed to the upper surface of the connecting sleeve, and the telescopic end of the electric push rod is fixedly connected to the connecting block.

[0015] As a further technical solution of the present invention, the monitoring unit includes an installation cylinder 2, which is fixed and penetrates into the hydrogen storage tank. The lower end of the installation cylinder 2 is open. A guide block and a connecting rod are fixed in the installation cylinder 2. The connecting rod movably penetrates the guide block. A piston 2 is fixed to the lower end of the connecting rod. A spring 3 is fixed to the piston 2 and the guide block bracket. The spring 3 is movably sleeved on the outer surface of the connecting rod. A contact switch is fixed to the inner top of the installation cylinder 2.

[0016] A hydrogen storage device comprises a hydrogen storage tank and the above-mentioned gas pressure-stabilizing explosion-proof structure, wherein an air inlet pipe is arranged at one end of the hydrogen storage tank, an air inlet solenoid valve is arranged on the air inlet pipe, and an air outlet pipe is arranged at the other end of the hydrogen storage tank, an air outlet solenoid valve is arranged on the air outlet pipe.

[0017] Beneficial effects of the present invention: 1. During the use of the present application, when the monitoring unit detects that the pressure in the hydrogen storage tank is too high, the pressure relief solenoid valve on the hydrogen storage tank is opened, and part of the hydrogen in the hydrogen storage tank is discharged into the temporary storage tank through the cooperation of the pressure relief pipe, the connecting unit and the inlet and outlet units, so that the pressure in the hydrogen storage tank returns to a normal level, and then the pressure relief solenoid valve is closed, and the pressure relief pipe, the connecting unit and the inlet and outlet units stop transporting hydrogen to the temporary storage tank. At this time, the temporary storage tank is in a sealed state, and the hydrogen inside is temporarily stored. Then the staff can remove the temporary storage tank from the receiving unit for subsequent processing, and will not cause a large amount of hydrogen waste.

[0018] 2. When placing the temporary storage tank on the arc-shaped placement groove, the staff holds the handle frame and presses the outer surface of one end of the temporary storage tank with the installation cylinder on the upper end surface of the lifting plate (the temporary storage tank and the upper surface of the receiving frame are parallel). Under the action of gravity, the lifting plate is pressed downward until the temporary storage tank is almost flush with the arc-shaped placement groove, and then the handle frame is pushed toward the direction close to the hydrogen storage tank to push the temporary storage tank into the arc-shaped placement groove. When the bottle body of the temporary storage tank is completely entered into the arc-shaped placement groove, the lifting plate is urged to move downward under the action of the elastic reset unit. Move upward until the upper part of the lifting plate moves to one side of the temporary storage tank, so as to avoid displacement of the temporary storage tank when the connecting unit is used in conjunction with the installation cylinder 1, and in the process of the lifting plate moving upward, the handle frame also enters the positioning groove, and the temporary storage tank is further limited by the cooperation of the positioning groove and the handle frame, so as to avoid angular deviation between the conveying through hole 1 and the connecting unit, and when the temporary storage tank needs to be replaced, only the lifting plate needs to be downward, and when the lifting plate does not hinder the translation of the temporary storage tank, only the temporary storage tank needs to be pulled out through the handle frame, which is convenient to use.

[0019] 3. By setting the fixed abutment sleeve, when the temporary storage tank is placed, the temporary storage tank is positioned. In the initial state, the end of the insertion tube is in the fixed abutment sleeve, so that the end of the insertion tube is protected. After the temporary storage tank is placed in the arc-shaped placement groove, the fixed abutment sleeve also abuts against the end of the temporary storage tank, and the fixed abutment sleeve also covers and protects the end of the installation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 Schematic diagram of the connection between the pressure relief pipe and the pressure relief solenoid valve in the present invention Figure 1 ; Figure 4 Schematic diagram of the connection between the pressure relief pipe and the pressure relief solenoid valve in the present invention Figure 2 ; Figure 5 It is a schematic diagram of the connection between the temporary storage tank and the installation cylinder 1 in the present invention; Figure 6 This is a schematic diagram of the internal structure of the installation tube 1 in the present invention; Figure 7 It is a schematic diagram of the external structure of the receiving frame in the present invention; Figure 8 It is a schematic diagram of the internal structure of the receiving frame in the present invention; Figure 9 It is a schematic diagram of the internal structure of the second installation tube in the present invention.

[0021] In the figure: 1. Hydrogen storage tank; 2. Pressure relief pipe; 3. Pressure relief solenoid valve; 4. Temporary storage tank; 5. Installation slot; 6. Installation cylinder 1; 7. Delivery hole 1; 8. Piston 1; 9. Spring 1; 10. Guide rod; 11. Receiver; 12. Arc placement slot; 13. Lifting plate; 14. Handle frame; 15. Positioning slot; 16. T-shaped slider; 17. L-shaped connecting plate; 18. Spring 2; 19. Fixed contact sleeve; 2 0. Connecting arm; 21. Insert tube; 22. Delivery hose; 23. Delivery through hole 2; 24. Upper plate; 25. Electric push rod; 26. Connecting sleeve; 27. Connecting block; 28. Mounting cylinder 2; 29. ​​Guide block; 31. Connecting rod; 32. Piston 2; 33. Spring 3; 34. Contact switch; 35. Inlet pipe; 36. Inlet solenoid valve; 37. Exit pipe; 38. Exit solenoid valve; 39. End solenoid valve. DETAILED DESCRIPTION

[0022] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Figures 1 - 9 A gas pressure-stabilizing explosion-proof structure includes a pressure relief pipe 2 connected to a hydrogen storage tank 1, a pressure relief solenoid valve 3 is provided on the pressure relief pipe 2, and the pressure relief solenoid valve 3 is a prior art. A temporary storage component is provided on one side of the pressure relief pipe 2, and the temporary storage component includes a temporary storage tank 4 provided on one side of the pressure relief pipe 2, and an air inlet and outlet unit is provided at one end of the temporary storage tank 4 close to the pressure relief pipe 2, and a connecting unit is provided at one end of the pressure relief pipe 2 close to the temporary storage tank 4, a receiving unit used in conjunction with the temporary storage tank 4 is provided on one side of the hydrogen storage tank 1, and a monitoring unit is also provided on the hydrogen storage tank 1.

[0024] During the use of the present application, when the monitoring unit detects that the pressure in the hydrogen storage tank 1 is too high, the pressure relief solenoid valve 3 on the hydrogen storage tank 1 is opened, and part of the hydrogen in the hydrogen storage tank 1 is discharged to the temporary storage tank 4 through the cooperation of the pressure relief pipe 2, the connecting unit and the inlet and outlet units, so that the pressure in the hydrogen storage tank 1 is restored to a normal level, and then the pressure relief solenoid valve 3 is closed, and the pressure relief pipe 2, the connecting unit and the inlet and outlet units stop transporting hydrogen to the temporary storage tank 4. At this time, the temporary storage tank 4 is in a sealed state, and the hydrogen inside is temporarily stored. Then the staff can remove the temporary storage tank 4 from the receiving unit for subsequent processing, and will not cause a large amount of hydrogen waste.

[0025] The air inlet and outlet unit includes a mounting groove 5 opened at one end of the temporary storage tank 4, a mounting cylinder 6 is fixed on the inner wall of the mounting groove 5, the end of the mounting cylinder 6 close to the pressure relief pipe 2 is open, a plurality of conveying holes 7 are opened on the inner wall of the mounting cylinder 6, and a sealing mechanism is arranged inside the mounting cylinder 6.

[0026] In the initial state, the blocking mechanism blocks the multiple delivery through holes 7. When it is necessary to guide hydrogen into the temporary storage tank 4, the blocking mechanism releases the blocking of the multiple delivery through holes 7. After the hydrogen is guided into the installation cylinder 6 by the connecting unit, it enters the temporary storage tank 4 through the multiple delivery through holes 7. When the hydrogen storage tank 1 is depressurized, the connecting unit moves away from the installation cylinder 6. At this time, the blocking mechanism blocks the end of the installation cylinder 6 and the multiple delivery through holes 7 again.

[0027] The blocking mechanism includes a piston 8 movably arranged in the installation cylinder 6, a spring 9 is fixed between the piston 8 and the inner wall of the installation cylinder 6, a guide rod 10 is fixed to one end of the piston 8, and one end of the guide rod 10 movably penetrates the installation cylinder 6.

[0028] In the initial state, piston 8 blocks the end of mounting cylinder 6. When the connecting unit cooperates with mounting cylinder 6 to conduct hydrogen, piston 8 is prompted to move toward the direction close to spring 9. At this time, spring 9 is squeezed and contracted, and spring 9 stores elastic potential energy. When the connecting unit stops conveying hydrogen to mounting cylinder 6 and moves away from mounting cylinder 6, the elastic potential energy stored in spring 9 is released, prompting piston 8 to return to the initial position, thereby blocking the end of mounting cylinder 6 and conveying through hole 7.

[0029] A vent hole 1 is provided at one end of the mounting cylinder 6 away from the piston 8 so that the piston 8 can translate normally.

[0030] The receiving unit includes a receiving frame 11 arranged on one side of the hydrogen storage tank 1, an arc-shaped placement groove 12 is provided on the upper end surface of the receiving frame 11, a lifting plate 13 is movably provided on the side of the receiving frame 11 away from the hydrogen storage tank 1, a handle frame 14 is fixed to the other end of the temporary storage tank 4, a positioning groove 15 used to cooperate with the handle frame 14 is provided on the side wall of the lifting plate 13, and an elastic reset unit is provided between the receiving frame 11 and the lifting plate 13.

[0031] When the present application is in use, the temporary storage tank 4 is placed on the arc-shaped placement groove 12 and used in conjunction with the connecting unit, so that the temporary storage tank 4 can be taken out and replaced, avoiding the need to lay and install more pipelines near the hydrogen storage tank 1.

[0032] When placing the temporary storage tank 4 on the arc-shaped placement groove 12, the staff holds the handle frame 14 and presses the outer surface of the end of the temporary storage tank 4 where the first mounting cylinder 6 is provided against the upper end surface of the lifting plate 13 (the temporary storage tank 4 is parallel to the upper surface of the bearing frame 11). Under the action of gravity, the lifting plate 13 is pressed to move downward until the temporary storage tank 4 is almost flush with the arc-shaped placement groove 12. Then, the handle frame 14 is pushed towards the direction close to the hydrogen storage tank 1, so as to push the temporary storage tank 4 into the arc-shaped placement groove 12. When the bottle body part of the temporary storage tank 4 completely enters the arc-shaped placement groove 12, at this time, under the action of the elastic reset unit, the lifting plate 13 is urged to move upward until the upper part of the lifting plate 13 moves to one side of the temporary storage tank 4, avoiding the displacement of the temporary storage tank 4 when the connection unit is used in cooperation with the first mounting cylinder 6. And during the upward movement of the lifting plate 13, the handle frame 14 also enters the positioning notch 15. Through the cooperation of the positioning notch 15 and the handle frame 14, the temporary storage tank 4 is further limited, avoiding the angular deviation between the first conveying through hole 7 and the connection unit. And when the temporary storage tank 4 needs to be replaced, only need to lower the lifting plate 13. When the lifting plate 13 does not hinder the translation of the temporary storage tank 4, just pull out the temporary storage tank 4 through the handle frame 14, which is convenient to use.

[0033] Two T-shaped sliders 16 are symmetrically fixed on one side of the lifting plate 13. Two T-shaped chutes are opened on the upper end surface of the bearing frame 11. The T-shaped sliders 16 are slidably arranged in the T-shaped chutes. The elastic reset unit includes an L-shaped connecting plate 17 fixed to the lower end surface of the lifting plate 13. Two second springs 18 are fixed between the bearing frame 11 and the L-shaped connecting plate 17.

[0034] During the process of placing the temporary storage tank 4, when the outer surface of the temporary storage tank 4 is placed on the upper end surface of the lifting plate 13, under the action of the gravity of the temporary storage tank 4, the lifting plate 13 is urged to drive the L-shaped connecting plate 17 to move downward. During the downward movement of the L-shaped connecting plate 17, the second spring 18 is pulled to generate elastic deformation, and the second spring 18 stores elastic potential energy. When the temporary storage tank 4 does not press on the upper end surface of the lifting plate 13, the elastic potential energy stored in the second spring 18 is released, urging the L-shaped connecting plate 17 and the lifting plate 13 to move upward, and urging the lifting plate 13 to block on one side of the temporary storage tank 4.

[0035] A fixed contact sleeve 19 is arranged on one side of the bearing frame 11 close to the hydrogen storage tank 1. Two connecting arms 20 are symmetrically fixed on the outer surface of the fixed contact sleeve 19. The ends of the connecting arms 20 are fixedly connected to the outer surface of the hydrogen storage tank 1.

[0036] Through the provided fixed contact sleeve 19, during the placement of the temporary storage tank 4, it cooperates to position the temporary storage tank 4.

[0037] The connecting unit includes an insertion tube 21 movably arranged on one side of the hydrogen storage tank 1. A delivery hose 22 is connected and arranged between the insertion tube 21 and the pressure relief pipe 2. A plurality of second delivery through holes 23 for cooperating with the first delivery through holes 7 are formed on the outer surface of the insertion tube 21. A driving mechanism for cooperating with the insertion tube 21 is arranged on the connecting arm 20, and an end solenoid valve 39 is arranged on the insertion tube 21.

[0038] When the hydrogen storage tank 1 needs to relieve pressure and discharge a part of hydrogen, at this time, the driving mechanism drives the insertion tube 21 to move, so that the end of the insertion tube 21 abuts against the first piston 8 and is inserted into the first installation cylinder 6 until the second delivery through holes 23 on the insertion tube 21 are aligned with the corresponding first delivery through holes 7. Then, the pressure relief solenoid valve 3 and the end solenoid valve 39 work, enabling the hydrogen storage tank 1 to convey part of the hydrogen to the inside of the temporary storage tank 4 through the guiding of the pressure relief pipe 2, the delivery hose 22, the insertion tube 21, the second delivery through holes 23, and the first delivery through holes 7.

[0039] After the hydrogen storage tank 1 finishes relieving pressure, the pressure relief solenoid valve 3 blocks the pressure relief pipe 2, and the end solenoid valve 39 blocks the insertion tube 21. Then, the driving mechanism causes the insertion tube 21 to move away from the temporary storage tank 4. At this time, some hydrogen still exists in the insertion tube 21 and is released into the external environment. Since the amount of this part of hydrogen is small, it can be ignored.

[0040] The driving mechanism includes an upper plate 24, which is fixed to the upper end surfaces of the two connecting arms 20. An electric push rod 25 is fixed to the upper end surface of the upper plate 24. A connecting sleeve 26 is fixed to the outer surface of the insertion tube 21, and a connecting block 27 is fixed to the upper surface of the connecting sleeve 26. The telescopic end of the electric push rod 25 is fixedly connected to the connecting block 27.

[0041] In the initial state, the end of the insertion tube 21 is located inside the fixed contact sleeve 19, thereby sleeving and protecting the end of the insertion tube 21. After the temporary storage tank 4 is placed in the arc-shaped placement groove 12, the fixed contact sleeve 19 also abuts against the end of the temporary storage tank 4, and the fixed contact sleeve 19 also covers and protects the end of the first installation cylinder 6.

[0042] In other embodiments, a rain shelter can be built on one side of the receiving frame 11 to shelter the electric push rod 25, the fixed contact sleeve 19, and the temporary storage tank 4 from rain.

[0043] In the initial state, the telescopic end of the electric push rod 25 is in a retracted state. When it is necessary to relieve the pressure of the hydrogen storage tank 1, the telescopic end of the electric push rod 25 extends, causing the connecting block 27 and the connecting sleeve 26 to drive the insertion tube 21 to move until the working part of the insertion tube 21 is inserted into the first installation cylinder 6.

[0044] The monitoring unit includes an installation cylinder 28, which is fixed and penetrates into the hydrogen storage tank 1. The lower end of the installation cylinder 28 is open. A guide block 29 and a connecting rod 31 are fixed in the installation cylinder 28. The connecting rod 31 movably penetrates the guide block 29. A piston 232 is fixed at the lower end of the connecting rod 31. A spring 33 is fixed to the piston 32 and the guide block 29 bracket. The spring 33 is movably sleeved on the outer surface of the connecting rod 31. A contact switch 34 is fixed to the inner top of the installation cylinder 28.

[0045] When the pressure in the hydrogen storage tank 1 is too high, the piston 2 32 will be prompted to move upward with the connecting rod 31. During this process, when the end of the connecting rod 31 hits the contact switch 34, it means that the hydrogen storage tank 1 needs to be depressurized.

[0046] The upper end of the second installation tube 28 is provided with a second vent hole penetrating into the interior, so that the connecting rod 31 can move upward.

[0047] A hydrogen storage device includes a hydrogen storage tank 1 and the above-mentioned gas pressure-stabilizing explosion-proof structure, wherein an air inlet pipe 35 is provided at one end of the hydrogen storage tank 1, and an air inlet solenoid valve 36 is provided on the air inlet pipe 35, and an air outlet pipe 37 is provided at the other end of the hydrogen storage tank 1, and an air outlet solenoid valve 38 is provided on the air outlet pipe 37.

[0048] The air inlet solenoid valve 36 cooperates with the air inlet pipe 35 to transport hydrogen to the inside of the hydrogen storage tank 1, and the air outlet pipe 37 cooperates with the air outlet solenoid valve 38 to transport the hydrogen stored in the hydrogen storage tank 1 when needed.

[0049] When the present invention is in use, when the monitoring unit detects that the pressure in the hydrogen storage tank 1 is too high, the pressure relief solenoid valve 3 on the hydrogen storage tank 1 is opened, and part of the hydrogen in the hydrogen storage tank 1 is led out to the temporary storage tank 4 through the cooperation of the pressure relief pipe 2, the connecting unit and the inlet and outlet units, so that the pressure in the hydrogen storage tank 1 is restored to a normal level, and then the pressure relief solenoid valve 3 is closed, and the pressure relief pipe 2, the connecting unit and the inlet and outlet units stop conveying hydrogen to the temporary storage tank 4. At this time, the temporary storage tank 4 is in a sealed state, and the hydrogen inside is temporarily stored. Then the staff can remove the temporary storage tank 4 from the receiving unit for subsequent processing, and will not cause a large amount of hydrogen waste; In the initial state, the blocking mechanism blocks the multiple delivery through holes 7. When it is necessary to guide hydrogen into the temporary storage tank 4, the blocking mechanism releases the blocking of the multiple delivery through holes 7. After the hydrogen is guided into the installation cylinder 6 by the connecting unit, it enters the temporary storage tank 4 through the multiple delivery through holes 7. When the hydrogen storage tank 1 is depressurized, the connecting unit is away from the installation cylinder 6. At this time, the blocking mechanism blocks the end of the installation cylinder 6 and the multiple delivery through holes 7 again. When placing the temporary storage tank 4 on the arc-shaped placement groove 12, the worker holds the handle frame 14 and presses the outer surface of the end of the temporary storage tank 4 where the first mounting cylinder 6 is provided against the upper end surface of the lifting plate 13 (the temporary storage tank 4 is parallel to the upper surface of the receiving frame 11). Under the action of gravity, the lifting plate 13 is pressed to move downward until the temporary storage tank 4 is almost flush with the arc-shaped placement groove 12. Then, the handle frame 14 is pushed in the direction close to the hydrogen storage tank 1, so as to push the temporary storage tank 4 into the arc-shaped placement groove 12. When the bottle body part of the temporary storage tank 4 completely enters the arc-shaped placement groove 12, at this time, under the action of the elastic reset unit, the lifting plate 13 is urged to move upward until the upper part of the lifting plate 13 moves to one side of the temporary storage tank 4, so as to prevent the displacement of the temporary storage tank 4 when the communication unit is used in cooperation with the first mounting cylinder 6. And when the lifting plate 13 moves upward, the handle frame 14 also enters the positioning notch 15. Through the cooperation of the positioning notch 15 and the handle frame 14, the temporary storage tank 4 is further limited, so as to prevent the deviation of the angle between the first conveying through hole 7 and the communication unit. And when the temporary storage tank 4 needs to be replaced, only the lifting plate 13 needs to be lowered. When the lifting plate 13 does not hinder the translation of the temporary storage tank 4, the temporary storage tank 4 can be pulled out only through the handle frame 14, which is convenient to use; When the hydrogen storage tank 1 needs to release pressure and discharge a part of hydrogen, at this time, the driving mechanism drives the insertion tube 21 to move, so that the end of the insertion tube 21 abuts against the first piston 8 and is inserted into the first mounting cylinder 6 until the second conveying through hole 23 on the insertion tube 21 is aligned with the corresponding first conveying through hole 7. Then, the pressure relief solenoid valve 3 and the end solenoid valve 39 work, so that the hydrogen storage tank 1 can convey part of the hydrogen to the inside of the temporary storage tank 4 through the guiding of the pressure relief pipe 2, the conveying hose 22, the insertion tube 21, the second conveying through hole 23 and the first conveying through hole 7.

[0050] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A gas pressure stabilizing and explosion-proof structure, including a pressure relief pipe (2) connected to a hydrogen storage tank (1), and a pressure relief solenoid valve (3) is arranged on the pressure relief pipe (2), characterized in that, On one side of the pressure relief pipe (2), a temporary storage assembly is provided. The temporary storage assembly includes a temporary storage tank (4) arranged on one side of the pressure relief pipe (2). An air inlet / outlet unit is arranged at one end of the temporary storage tank (4) close to the pressure relief pipe (2), and a connection unit is arranged at one end of the pressure relief pipe (2) close to the temporary storage tank (4). A receiving unit for cooperating with the temporary storage tank (4) is arranged on one side of the hydrogen storage tank (1), and a monitoring unit is also arranged on the hydrogen storage tank (1).

2. The gas pressure stabilizing and explosion-proof structure according to claim 1, characterized in that, The air inlet / outlet unit includes an installation through groove (5) opened at one end of the temporary storage tank (4). An installation cylinder one (6) is fixed on the inner wall of the installation through groove (5). One end of the installation cylinder one (6) close to the pressure relief pipe (2) is open. A plurality of conveying through holes one (7) are opened on the inner wall of the installation cylinder one (6), and a plugging mechanism is arranged in the installation cylinder one (6).

3. The gas pressure stabilizing and explosion-proof structure according to claim 2, characterized in that, The plugging mechanism includes a piston one (8) movably arranged in the installation cylinder one (6). A spring one (9) is fixed between the piston one (8) and the inner wall of the installation cylinder one (6). One end of the piston one (8) is fixed with a guide rod (10), and one end of the guide rod (10) movably penetrates through the installation cylinder one (6).

4. A gas pressure stabilizing and explosion-proof structure according to claim 1, characterized in that, The receiving unit includes a receiving frame (11) arranged on one side of the hydrogen storage tank (1). An arc-shaped placement groove (12) is opened on the upper end surface of the receiving frame (11). A lifting plate (13) is movably arranged on one side of the receiving frame (11) away from the hydrogen storage tank (1). The other end of the temporary storage tank (4) is fixed with a handle frame (14). A positioning notch (15) for cooperating with the handle frame (14) is opened on the side wall of the lifting plate (13). An elastic reset unit is arranged between the receiving frame (11) and the lifting plate (13).

5. A gas pressure stabilizing and explosion-proof structure according to claim 4, characterized in that, Two T-shaped sliders (16) are symmetrically fixed on one side of the lifting plate (13). Two T-shaped sliding grooves are opened on the upper end surface of the receiving frame (11). The T-shaped sliders (16) are slidably arranged in the T-shaped sliding grooves. The elastic reset unit includes an L-shaped connecting plate (17) fixed on the lower end surface of the lifting plate (13). Two spring two (18) are fixed between the receiving frame (11) and the L-shaped connecting plate (17).

6. The gas pressure stabilizing and explosion-proof structure according to claim 4, characterized in that A fixed abutting sleeve (19) is arranged on one side of the receiving frame (11) close to the hydrogen storage tank (1). Two connecting arms (20) are symmetrically fixed on the outer surface of the fixed abutting sleeve (19). The ends of the connecting arms (20) are fixedly connected to the outer surface of the hydrogen storage tank (1).

7. A gas pressure stabilizing and explosion-proof structure according to claim 6, characterized in that, The connection unit includes an insertion tube (21) movably arranged on one side of the hydrogen storage tank (1). A conveying hose (22) is connected and arranged between the insertion tube (21) and the pressure relief pipe (2). A plurality of conveying through holes two (23) for cooperating with the conveying through holes one (7) are opened on the outer surface of the insertion tube (21). A driving mechanism for cooperating with the insertion tube (21) is arranged on the connecting arm (20). An end solenoid valve (39) is arranged on the insertion tube (21).

8. A gas pressure stabilizing and explosion-proof structure according to claim 7, characterized in that, The driving mechanism includes an upper plate (24) which is fixed to the upper end faces of two connecting arms (20). An electric push rod (25) is fixed to the upper end face of the upper plate (24). A connecting sleeve (26) is fixed to the outer surface of the insertion tube (21). A connecting block (27) is fixed to the upper surface of the connecting sleeve (26). The telescopic end of the electric push rod (25) is fixedly connected to the connecting block (27).

9. The gas pressure stabilizing and explosion-proof structure according to claim 1, wherein The monitoring unit includes a second mounting cylinder (28) which is fixedly penetrated into the hydrogen storage tank (1). The lower end of the second mounting cylinder (28) is open. A guiding block (29) and a connecting rod (31) are fixed inside the second mounting cylinder (28). The connecting rod (31) movably penetrates through the guiding block (29). A second piston (32) is fixed to the lower end of the connecting rod (31). A third spring (33) is fixed between the second piston (32) and the guiding block (29). The third spring (33) is movably sleeved on the outer surface of the connecting rod (31). A contact switch (34) is fixed to the inner top of the second mounting cylinder (28).

10. A hydrogen storage device, characterized in that, It includes a hydrogen storage tank (1) and a gas pressure stabilizing and explosion-proof structure according to any one of claims 1-9. An inlet pipe (35) is provided at one end of the hydrogen storage tank (1). An inlet electromagnetic valve (36) is provided on the inlet pipe (35). An outlet pipe (37) is provided at the other end of the hydrogen storage tank (1). An outlet electromagnetic valve (38) is provided on the outlet pipe (37).

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