Hydrogen storage equipment with leakage protection structure

Abstract

The invention discloses hydrogen storage equipment with a leakage protection structure, and relates to the technical field of hydrogen storage, the hydrogen storage equipment comprises a storage tank and a protection shell slidably mounted on the outer surface of the storage tank, a breather pipe is fixedly mounted at the top of the storage tank, and a high-pressure valve is fixedly mounted at the top of the breather pipe; an air outlet pipe is fixedly installed on the outer surface of the storage tank, an air leakage mechanism is installed in the air outlet pipe, an alarm is fixedly installed on the outer surface of the protection shell, and a buffering mechanism is installed between the bottom of the storage tank and the bottom of an inner cavity of the protection shell. According to the hydrogen storage equipment with the leakage protection structure, automatic adjustment of the pressure in the storage tank is achieved through the gas leakage mechanism, excessive hydrogen is discharged in time when the pressure is too high, the storage tank is prevented from being damaged due to continuous rising of the pressure, downward moving impact force generated when the pressure of the storage tank is released is relieved through the buffering mechanism, the structural integrity of the storage tank is protected, and the service life of the storage tank is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage, and in particular to a hydrogen storage device with a leakage protection structure. Background Art

[0002] As a clean, efficient energy carrier with broad application prospects, hydrogen is becoming increasingly important in the energy field. However, there are safety issues in the storage of hydrogen. Hydrogen has the characteristics of low density, flammability and explosiveness, and rapid diffusion. Traditional hydrogen storage equipment often lacks an effective automatic pressure relief mechanism when faced with abnormally high internal tank pressure. Once the internal pressure is too high, it may cause the tank to rupture, triggering hydrogen leakage, and further causing serious safety accidents such as fire and explosion. At the same time, existing hydrogen storage equipment has insufficient protection against unexpected situations such as external collisions. External impacts can easily damage the tank structure, increasing the risk of hydrogen leakage. When hydrogen leaks, existing storage equipment cannot effectively control and collect the leaked hydrogen. The hydrogen quickly diffuses into the surrounding environment, which not only wastes energy but also creates a flammable and explosive dangerous environment locally, posing a great threat to the safety of people's lives and surrounding facilities. Summary of the Invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: A hydrogen storage device with a leakage protection structure, comprising: A storage tank and a protective shell slidably mounted on the outer surface of the storage tank. The storage tank is used to store hydrogen. The protective shell protects the storage tank and can prevent external objects from colliding with the storage tank, thereby avoiding damage to the storage tank caused by collision and causing hydrogen leakage. At the same time, a relatively closed space is formed between the protective shell and the storage tank. When hydrogen leaks, it can temporarily contain the leaked hydrogen and prevent the hydrogen from diffusing into the surrounding environment. A vent pipe is fixedly mounted on the top of the storage tank, and a high-pressure valve is fixedly mounted on the top of the vent pipe. The high-pressure valve is used to control the opening and closing of the vent pipe. During normal storage, the high-pressure valve is in a closed state to prevent hydrogen leakage. When the pressure in the storage tank needs to be adjusted, the high-pressure valve can be opened as needed, and the discharge of gas can be accurately controlled to ensure that the pressure in the storage tank is always within a safe range. An air outlet pipe is fixedly installed on the outer surface of the storage tank, and reinforcing ribs are fixedly installed on the outer surface of the storage tank. The reinforcing ribs can enhance the structural strength of the storage tank, improve the pressure resistance of the storage tank, and prevent the storage tank from being deformed due to internal pressure during the storage of high-pressure hydrogen, thereby extending the service life of the storage tank. An air retaining ring is fixedly installed on the inner wall of the protective shell, and the inner side surface of the air retaining ring is sealed and adapted to the outer surface of the storage tank. The air retaining ring divides the inner cavity of the protective shell into two upper and lower chambers, and the air outlet pipe is arranged in the upper chamber of the protective shell; A fixing ring is fixedly mounted on the outer surface of the protective shell, a support is fixedly mounted on the lower surface of the fixing ring, a base is fixedly mounted on the bottom of the support, and an alarm is fixedly mounted on the outer surface of the protective shell. When the equipment detects abnormal pressure, the alarm will send out an alarm signal to remind the staff to open the high-pressure valve in time; The deflation mechanism is installed inside the outlet pipe. When the pressure in the storage tank increases, the deflation mechanism automatically deflates the gas, allowing excess hydrogen to enter the upper chamber of the protective shell. The pressure in the upper chamber of the protective shell increases, pushing the storage tank downward. The deflation mechanism prevents the pressure in the storage tank from being too high, thereby playing a role in pressure relief protection. A buffer mechanism is installed between the bottom of the storage tank and the bottom of the inner cavity of the protective shell. When the storage tank is pushed downward, the buffer mechanism plays a role of buffering and shock absorption; Among them, the air deflation mechanism includes an air outlet part, which is slidably installed inside the air outlet pipe, and an arc-shaped baffle is fixedly installed on the end of the air outlet part. The arc-shaped baffle is arranged inside the storage tank, and a return spring is fixedly connected between the arc-shaped baffle and the inner wall of the storage tank. An air baffle is installed on the end of the air outlet part away from the arc-shaped baffle.

[0004] Preferably, the air outlet component includes a sliding column, which is slidably installed inside the air outlet pipe. An L-shaped air outlet hole is opened inside the sliding column, an air guide plate is fixedly installed on the inner wall of the L-shaped air outlet hole, and a spiral groove is opened on the outer surface of the sliding column.

[0005] Preferably, the inner cavity of the storage tank is connected with the inner cavity of the protective shell through an L-shaped air outlet hole. The number of the L-shaped air outlet holes is three, and the three L-shaped air outlet holes are evenly distributed along the axis of the sliding column. The air guide plate is specifically an annular cone plate, and the air guide plates are evenly distributed on the inner wall of the L-shaped air outlet hole. When the pressure in the storage tank rises to a certain level, the pressure pushes the arc-shaped baffle, driving the sliding column to move, so that the inner cavity of the storage tank is connected with the inner cavity of the protective shell through the L-shaped air outlet hole, and hydrogen is discharged. The air guide plate guides the flow of hydrogen, so that the hydrogen is discharged more smoothly, and at the same time has a certain buffering and dispersion effect on the airflow.

[0006] Preferably, the air-blocking member includes a pipe sleeve, which is rotatably mounted on the air outlet end of the air outlet pipe, and a second return spring is fixedly mounted inside the pipe sleeve, and the other end of the second return spring is fixedly connected to a rotating tube, and the rotating tube is slidably mounted inside the pipe sleeve, and a fixed disk is fixedly mounted on the end of the rotating tube away from the second return spring, and an air outlet hole is provided on the surface of the fixed disk.

[0007] Preferably, a slider is fixedly mounted on the inner side of the sleeve, and the slider is slidably mounted inside the spiral groove. A sealing ring is fixedly mounted on the surface of the fixed disk, and the sealing ring is sealed and adapted to the side of the end of the sliding column.

[0008] Preferably, the number of the air outlet holes is three, and the three air outlet holes are evenly distributed along the axis of the fixed disk. When the sliding column moves, the spiral groove and the slider cooperate to drive the tube sleeve to rotate, and then the rotating tube and the fixed disk rotate, so that the air outlet holes coincide with the L-shaped air outlet holes to achieve air release. After the air release is completed, under the elastic force of the reset spring 1, the rotating tube and the fixed disk are reset, the air outlet holes and the L-shaped air outlet holes are staggered, the air outlet channel is closed and re-sealed, and the sealing ring is sealed and adapted to the side of the end of the sliding column when air release is not required to prevent hydrogen leakage.

[0009] Preferably, the buffer mechanism includes a supporting tray and a mounting plate, the supporting tray is fixedly mounted on the bottom of the inner cavity of the protective shell, the mounting plate is fixedly mounted on the bottom of the storage tank, a receiving groove is provided on the top of the supporting tray, a rotating shaft is rotatably mounted inside the receiving groove, the rotating shaft is arranged at the side of the supporting tray, an L-shaped rod is fixedly mounted on the outer surface of the rotating shaft, and a sliding rotating rod is rotatably mounted on the other end of the L-shaped rod.

[0010] Preferably, a cross is fixedly installed at the bottom of the mounting plate, a sliding groove is provided at the bending part of the cross, and the sliding rod is slidably installed inside the sliding groove. When the storage tank moves downward, the L-shaped rod rotates around the rotating axis, and the sliding rod slides in the sliding groove.

[0011] Preferably, the number of the accommodating slots is four, and the four accommodating slots are evenly distributed along the axis of the supporting tray. A buffer spring is fixedly connected between the oppositely arranged L-shaped rods, and the buffer spring is arranged inside the cross. When the L-shaped rod rotates, the buffer spring is compressed and absorbs energy through its own elastic deformation, thereby playing a role of buffering and shock absorption, reducing the impact of vibration and impact on the storage tank, and protecting the structural integrity of the storage tank.

[0012] Preferably, a pressure sensor is fixedly installed at the axis of the support tray, and a connecting spring is fixedly connected between the pressure sensor and the bottom of the cross. The pressure sensor is used to monitor the pressure changes of the storage tank on the support tray in real time. When the pressure is too high, a signal can be sent in time to remind the staff to open the high-pressure valve. The connecting spring further enhances the buffering effect and can also transmit the pressure changes to the pressure sensor more accurately.

[0013] The present invention provides a hydrogen storage device with a leakage protection structure. It has the following beneficial effects: 1. The hydrogen storage device with a leakage protection structure has an air release mechanism. When the pressure in the storage tank increases and exceeds the elastic force of the return spring, the pressure pushes the arc-shaped baffle, driving the sliding column in the gas outlet part to slide in the gas outlet pipe. The spiral groove on the outer surface of the sliding column cooperates with the slider on the inner side of the pipe sleeve in the gas baffle, causing the pipe sleeve to rotate, thereby driving the rotating pipe and the fixed plate to rotate until the gas outlet hole on the fixed plate coincides with the L-shaped gas outlet hole in the sliding column. At this time, the excess hydrogen in the storage tank enters the storage tank through the L-shaped gas outlet hole and the gas outlet hole. In the upper chamber of the protective shell, when the pressure in the tank drops, the reset spring pulls the arc-shaped baffle to reset the slide column. After the fixed disk rotates, the air outlet holes and the L-shaped air outlet holes are staggered, and the air outlet channel is closed. The air release mechanism realizes automatic adjustment of the pressure in the tank. When the pressure is too high, the excess hydrogen is discharged in time to prevent the continuous increase in pressure from causing damage to the tank, and effectively avoids dangerous situations such as hydrogen leakage and explosion caused by the rupture of the tank due to excessive pressure in the tank, which greatly improves the safety of hydrogen storage equipment and reduces the probability of safety accidents.

[0014] 2. The hydrogen storage device with a leakage protection structure is equipped with a protective shell and an air baffle ring. The protective shell is slidably installed on the outer surface of the tank. The air baffle ring is fixed to the inner wall of the protective shell and sealed with the outer surface of the tank, dividing the inner cavity of the protective shell into upper and lower chambers. When an external object collides with the tank, the protective shell first bears the impact force to avoid direct damage to the tank. If hydrogen leaks from the tank, the leaked hydrogen will accumulate in the relatively closed space formed by the protective shell and the tank, and will be confined to the upper chamber and will not quickly spread to the surrounding environment. The protective shell reduces the risk of damage to the tank due to collision, and effectively controls the spread of leaked hydrogen, thereby buying time for staff to deal with the leakage and reducing the harm caused by hydrogen leakage to the environment and personnel.

[0015] 3. This hydrogen storage device with a leakage protection structure utilizes a buffer mechanism. When the pressure in the upper chamber of the protective shell increases due to hydrogen entering, pushing the tank downward, the mounting plate at the bottom of the tank drives the cross downward, causing the sliding rod to slide within the chute. Simultaneously, the L-shaped rod rotates around the rotation axis, and the opposing L-shaped rod rotates to compress the buffer spring, causing the connecting spring to deform as well. A pressure sensor monitors the pressure change. When the pressure decreases, the buffer spring and connecting spring reset, driving the tank back to its initial position. During the downward movement of the tank, the elastic deformation of the buffer spring and connecting spring absorbs energy, slowing the downward movement speed and impact force, protecting the structural integrity of the tank and extending its service life.

[0016] 4. The hydrogen storage equipment with a leakage protection structure, through the setting of alarms and pressure sensors, the pressure sensor monitors the pressure changes of the storage tank on the supporting tray in real time. When the pressure exceeds the set threshold, it indicates that the pressure in the storage tank is abnormal. At this time, the pressure sensor transmits the signal to the alarm, and the alarm sends an alarm signal to remind the staff to open the high-pressure valve in time to adjust the pressure in the storage tank. The alarm and pressure sensor realize real-time monitoring and early warning of abnormal pressure in the storage tank, so that the staff can intervene and deal with it in time, avoid serious safety accidents caused by failure to deal with abnormal pressure in time, and improve the reliability and safety of the operation of hydrogen storage equipment.

[0017] 5. The hydrogen storage equipment with a leakage protection structure has reinforcing ribs fixedly installed on the outer surface of the tank. During the storage of high-pressure hydrogen in the tank, the reinforcing ribs and the tank body jointly bear the internal pressure, disperse the pressure through their own structural strength, enhance the overall pressure resistance of the tank, improve the structural strength of the tank, enhance its ability to resist internal pressure, prevent the tank from deformation due to internal pressure, extend the service life of the tank, and reduce the possibility of safety problems such as hydrogen leakage caused by tank deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the appearance of the present invention; Figure 3 It is a partial cross-sectional view of the protective shell of the present invention; Figure 4 It is a partial cross-sectional view of the storage tank of the present invention; Figure 5 This is a schematic structural diagram of the deflation mechanism of the present invention; Figure 6 It is a partial cross-sectional view of the deflation mechanism of the present invention; Figure 7 A partial cross-sectional view of the air baffle of the present invention; Figure 8 This is a schematic structural diagram of the buffer mechanism of the present invention; Figure 9 It is a partial cross-sectional view of the buffer mechanism of the present invention.

[0019] Figure: 1, storage tank; 2, vent pipe; 3, high-pressure valve; 4, air release mechanism; 41, air outlet; 411, slide column; 412, L-shaped air outlet; 413, air guide plate; 414, spiral groove; 42, arc-shaped baffle; 43, return spring 1; 44, air baffle; 441, pipe sleeve; 442, rotating pipe; 443, return spring 2; 444, slide block; 445, fixed plate; 446, sealing ring; 447, air outlet; 5 , exhaust pipe; 6. Protective shell; 7. Air baffle ring; 8. Buffer mechanism; 801. Support tray; 802. Mounting plate; 803. Receiving groove; 804. Rotating shaft; 805. L-shaped rod; 806. Buffer spring; 807. Cross; 808. Slide groove; 809. Sliding rod; 810. Pressure sensor; 811. Connecting spring; 9. Fixed ring; 10. Pillar; 11. Base; 12. Alarm; 13. Reinforcement rib. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: a hydrogen storage device with a leakage protection structure, comprising: A storage tank 1 and a protective shell 6 slidably mounted on the outer surface of the storage tank 1. The storage tank 1 is used to store hydrogen. The protective shell 6 protects the storage tank 1 and prevents external objects from colliding with the storage tank 1, thereby avoiding damage to the storage tank 1 caused by collision and causing hydrogen leakage. At the same time, a relatively closed space is formed between the protective shell 6 and the storage tank 1. When hydrogen leaks, it can temporarily contain the leaked hydrogen and prevent the hydrogen from diffusing into the surrounding environment. A vent pipe 2 is fixedly mounted on the top of the storage tank 1, and a high-pressure valve 3 is fixedly mounted on the top of the vent pipe 2. The high-pressure valve 3 is used to control the opening and closing of the vent pipe 2; During normal storage, the high-pressure valve 3 is in a closed state to prevent hydrogen leakage. When the pressure in the storage tank 1 needs to be adjusted, the high-pressure valve 3 can be opened as needed, and the discharge of gas can be accurately controlled to ensure that the pressure in the storage tank 1 is always within a safe range. An outlet pipe 5 is fixedly installed on the outer surface of the storage tank 1, and a reinforcing rib 13 is fixedly installed on the outer surface of the storage tank 1. The reinforcing rib 13 can enhance the structural strength of the storage tank 1, improve the pressure resistance of the storage tank 1, and prevent the storage tank 1 from being deformed due to internal pressure during the storage of high-pressure hydrogen, thereby extending the service life of the storage tank 1. An air retaining ring 7 is fixedly installed on the inner wall of the protective shell 6, and the inner side surface of the air retaining ring 7 is sealed and adapted to the outer surface of the storage tank 1. The air retaining ring 7 divides the inner cavity of the protective shell 6 into two upper and lower chambers, and the air outlet pipe 5 is arranged in the upper chamber of the protective shell 6; A fixing ring 9 is fixedly mounted on the outer surface of the protective shell 6, a support 10 is fixedly mounted on the lower surface of the fixing ring 9, a base 11 is fixedly mounted on the bottom of the support 10, and an alarm 12 is fixedly mounted on the outer surface of the protective shell 6. When the equipment detects abnormal pressure, the alarm 12 will send an alarm signal to remind the staff to open the high-pressure valve 3 in time; The deflation mechanism 4 is installed inside the gas outlet pipe 5. When the pressure in the storage tank 1 increases, the deflation mechanism 4 automatically deflates the gas, allowing excess hydrogen to enter the upper chamber of the protective shell 6. The pressure in the upper chamber of the protective shell 6 increases, pushing the storage tank 1 downward. The deflation mechanism 4 prevents the pressure in the storage tank 1 from being too high, thereby playing a role in pressure relief protection. The buffer mechanism 8 is fixedly installed between the bottom of the storage tank 1 and the bottom of the inner cavity of the protective shell 6. When the storage tank 1 is pushed downward, the buffer mechanism 8 plays a role in buffering and shock absorption.

[0022] The second embodiment, based on the first embodiment, see Figures 5 to 7 As shown, the deflation mechanism 4 includes an air outlet member 41, which is slidably mounted inside the air outlet pipe 5. An arc-shaped baffle 42 is fixedly mounted on the end of the air outlet member 41. The arc-shaped baffle 42 is disposed inside the storage tank 1. A return spring 43 is fixedly connected between the arc-shaped baffle 42 and the inner wall of the storage tank 1. An air baffle 44 is mounted on the end of the air outlet member 41 away from the arc-shaped baffle 42. The air outlet member 41 includes a slide post 411, which is slidably mounted inside the air outlet pipe 5. An L-shaped air outlet hole 412 is formed inside the slide post 411, and an air guide plate 413 is fixedly mounted on the inner wall of the L-shaped air outlet hole 412. A spiral groove 414 is formed on the outer surface of the slide post 411. The inner cavity of the storage tank 1 is connected to the inner cavity of the protective shell 6 through the L-shaped air outlet hole 412. There are three L-shaped air outlet holes 412, and the three L-shaped air outlet holes 412 are evenly distributed along the axis of the sliding column 411. The air guide plate 413 is specifically an annular cone plate, and the air guide plate 413 is evenly distributed on the inner wall of the L-shaped air outlet hole 412. When the pressure in the storage tank 1 rises to a certain level, the pressure pushes the arc-shaped baffle 42, driving the sliding column 411 to move, so that the inner cavity of the storage tank 1 is connected to the inner cavity of the protective shell 6 through the L-shaped air outlet hole 412, and hydrogen is discharged. The air guide plate 413 guides the flow of hydrogen, allowing it to be discharged more smoothly, while also having a certain buffering and dispersion effect on the airflow. The air blocking member 44 includes a sleeve 441, which is rotatably mounted on the outlet end of the outlet pipe 5. A second return spring 443 is fixedly mounted inside the sleeve 441. The other end of the second return spring 443 is fixedly connected to a rotating tube 442. The rotating tube 442 is slidably mounted inside the sleeve 441. A fixed plate 445 is fixedly mounted on the end of the rotating tube 442 away from the second return spring 443. The surface of the fixed plate 445 is provided with an air outlet hole 447. A slider 444 is fixedly mounted on the inner side of the sleeve 441 , and the slider 444 is slidably mounted inside the spiral groove 414 . A sealing ring 446 is fixedly mounted on the surface of the fixed plate 445 , and the sealing ring 446 is sealed and adapted to the side edge of the end of the sliding column 411 . There are three air outlet holes 447, and the three air outlet holes 447 are evenly distributed along the axis of the fixed disk 445. When the sliding column 411 moves, the spiral groove 414 cooperates with the slider 444 to drive the pipe sleeve 441 to rotate, and then the rotating tube 442 and the fixed disk 445 rotate, so that the air outlet holes 447 coincide with the L-shaped air outlet holes 412 to achieve degassing. After the degassing is completed, under the elastic force of the reset spring 43, the rotating tube 442 and the fixed disk 445 are reset, and the air outlet holes 447 and the L-shaped air outlet holes 412 are staggered, and the air outlet channel is closed and re-sealed. When degassing is not required, the sealing ring 446 is sealed and adapted to the side of the end of the sliding column 411 to prevent hydrogen leakage.

[0023] The third embodiment, based on the first and second embodiments, see Figure 8 and Figure 9 As shown, the buffer mechanism 8 includes a tray 801 and a mounting plate 802. The tray 801 is fixedly mounted on the bottom of the inner cavity of the protective shell 6, and the mounting plate 802 is fixedly mounted on the bottom of the storage tank 1. A receiving groove 803 is provided on the top of the tray 801. A rotating shaft 804 is rotatably mounted inside the receiving groove 803. The rotating shaft 804 is arranged on the side of the tray 801. An L-shaped rod 805 is fixedly mounted on the outer surface of the rotating shaft 804. A sliding rotating rod 809 is rotatably mounted on the other end of the L-shaped rod 805. A cross 807 is fixedly mounted on the bottom of the mounting plate 802. A slide groove 808 is provided at the bend of the cross 807. A sliding rod 809 is slidably mounted inside the slide groove 808. When the storage tank 1 moves downward, the L-shaped rod 805 rotates around the rotation axis 804, and the sliding rod 809 slides in the slide groove 808. There are four receiving slots 803, and the four receiving slots 803 are evenly distributed along the axis of the support tray 801. A buffer spring 806 is fixedly connected between the opposing L-shaped rods 805. The buffer spring 806 is arranged inside the cross 807. When the L-shaped rod 805 rotates, the buffer spring 806 is compressed and absorbs energy through its own elastic deformation, thereby playing a role in buffering and shock absorption, reducing the impact of vibration and impact on the storage tank 1, and protecting the structural integrity of the storage tank 1. A pressure sensor 810 is fixedly installed at the axis of the supporting tray 801, and a connecting spring 811 is fixedly connected between the pressure sensor 810 and the bottom of the cross 807. The pressure sensor 810 is used to monitor the pressure changes of the storage tank 1 relative to the supporting tray 801 in real time. When the pressure is too high, it can send a signal in time to remind the staff to open the high-pressure valve 3. The connecting spring 811 further enhances the buffering effect, and can also transmit the pressure changes to the pressure sensor 810 more accurately.

[0024] When in use, the storage tank 1 stores hydrogen normally. The protective shell 6 is installed on the outer surface of the storage tank 1 to prevent external objects from colliding with the storage tank 1. The protective shell 6 and the storage tank 1 are relatively closed. The air baffle ring 7 divides the inner cavity of the protective shell 6 into two upper and lower chambers. The outlet pipe 5 is located in the upper chamber. The inner side of the air baffle ring 7 is sealed and adapted to the outer surface of the storage tank 1 to enhance the sealing performance. The high-pressure valve 3 is in a closed state to prevent hydrogen from leaking through the vent pipe 2, thereby maintaining a sealed storage environment for the hydrogen inside the storage tank 1. When the hydrogen pressure in the storage tank 1 increases, the arc-shaped baffle 42 is pushed to drive the sliding column 411 to move in the air outlet pipe 5. At the same time, the spiral groove 414 on the outer surface of the sliding column 411 cooperates with the slider 444 on the inner side of the pipe sleeve 441, driving the pipe sleeve 441 to rotate, thereby causing the rotating tube 442 and the fixed plate 445 to rotate until the air outlet hole 447 coincides with the L-shaped air outlet hole 412, opening the air release channel, and hydrogen passes through the L-shaped air outlet hole 412 and flows more smoothly into the upper chamber of the protective shell 6 under the guidance of the air guide plate 413. At the same time, the air guide plate 413 has a buffering and dispersing effect on the air flow to avoid air flow impact. As hydrogen continues to enter the upper chamber of the protective shell 6, the pressure in the upper chamber gradually increases, pushing the storage tank 1 to move downward, and the storage tank 1 drives the mounting plate 802 to move downward; When the storage tank 1 moves downward, the cross 807 at the bottom of the mounting plate 802 moves downward, driving the sliding rod 809 to slide in the slide groove 808, and at the same time causing the L-shaped rod 805 to rotate around the rotation axis 804. When the opposing L-shaped rod 805 rotates, the buffer spring 806 is compressed. The buffer spring 806 absorbs energy through its own elastic deformation, slowing down the downward movement of the storage tank 1, playing a buffering and shock-absorbing role, and protecting the structural integrity of the storage tank 1; During the downward movement of the storage tank 1, the pressure sensor 810 monitors the pressure change of the storage tank 1 on the support tray 801 in real time through the connection spring 811. If the pressure is too high, the pressure sensor 810 sends a signal to remind the staff to open the high-pressure valve 3 for manual auxiliary pressure relief. When the pressure in the storage tank 1 drops to a certain level due to air leakage, the reset spring 43 resets and pulls the arc baffle 42, driving the slide post 411 to reset. During the reset process of the slide post 411, the spiral groove 414 cooperates with the slider 444 to make the pipe sleeve 441, the rotating pipe 442 and the fixed plate 445 rotate in the opposite direction. The air outlet 447 and the L-shaped air outlet 412 are staggered and the air outlet channel is closed. The sealing ring 446 is sealed and adapted to the side edge of the end of the slide post 411 to prevent hydrogen leakage. At the same time, under the elastic force of the buffer spring 806, the storage tank 1 slowly moves up and returns to its initial position.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen storage device with a leakage protection structure, characterized in that: include: A storage tank and a protective shell slidably mounted on the outer surface of the storage tank, a vent pipe fixedly mounted on the top of the storage tank, a high-pressure valve fixedly mounted on the top of the vent pipe, an air outlet pipe fixedly mounted on the outer surface of the storage tank, a reinforcing rib fixedly mounted on the outer surface of the storage tank, an air baffle ring fixedly mounted on the inner wall of the protective shell, the inner side of the air baffle ring sealingly fitting with the outer surface of the storage tank, a fixing ring fixedly mounted on the outer surface of the protective shell, a pillar fixedly mounted on the lower surface of the fixing ring, a base fixedly mounted on the bottom of the pillar, and an alarm fixedly mounted on the outer surface of the protective shell; An air-deflation mechanism installed inside the air outlet pipe; A buffer mechanism is installed between the bottom of the storage tank and the bottom of the inner cavity of the protective shell; Among them, the air deflation mechanism includes an air outlet part, which is slidably installed inside the air outlet pipe, and an arc-shaped baffle is fixedly installed on the end of the air outlet part. The arc-shaped baffle is arranged inside the storage tank, and a return spring is fixedly connected between the arc-shaped baffle and the inner wall of the storage tank. An air baffle is installed on the end of the air outlet part away from the arc-shaped baffle.

2. The hydrogen storage device with a leakage protection structure according to claim 1, characterized in that: The air outlet component includes a sliding column, which is slidably installed inside the air outlet pipe. An L-shaped air outlet hole is opened inside the sliding column, and an air guide plate is fixedly installed on the inner wall of the L-shaped air outlet hole. A spiral groove is opened on the outer surface of the sliding column.

3. The hydrogen storage device with a leakage protection structure according to claim 2, characterized in that: The inner cavity of the storage tank is connected to the inner cavity of the protective shell through an L-shaped air outlet. There are three L-shaped air outlet holes, and the three L-shaped air outlet holes are evenly distributed along the axis of the sliding column. The air guide plate is specifically an annular cone plate, and the air guide plates are evenly distributed on the inner wall of the L-shaped air outlet.

4. The hydrogen storage device with a leakage protection structure according to claim 3, characterized in that: The air-blocking component includes a pipe sleeve, which is rotatably installed at the outlet end of the outlet pipe. A second return spring is fixedly installed inside the pipe sleeve, and the other end of the second return spring is fixedly connected to a rotating pipe. The rotating pipe is slidably installed inside the pipe sleeve, and a fixed disk is fixedly installed at one end of the rotating pipe away from the second return spring, and an air outlet hole is opened on the surface of the fixed disk.

5. The hydrogen storage device with a leakage protection structure according to claim 4, characterized in that: A slider is fixedly mounted on the inner side of the sleeve, and the slider is slidably mounted inside the spiral groove. A sealing ring is fixedly mounted on the surface of the fixed disk, and the sealing ring is sealed and adapted to the side edge of the end of the sliding column.

6. The hydrogen storage device with a leakage protection structure according to claim 5, characterized in that: The number of the air outlet holes is three, and the three air outlet holes are evenly distributed along the axis of the fixed disk.

7. The hydrogen storage device with a leakage protection structure according to claim 1, characterized in that: The buffer mechanism includes a supporting tray and a mounting plate. The supporting tray is fixedly mounted on the bottom of the inner cavity of the protective shell, and the mounting plate is fixedly mounted on the bottom of the storage tank. A receiving groove is provided on the top of the supporting tray. A rotating shaft is rotatably mounted inside the receiving groove. The rotating shaft is arranged at the side of the supporting tray. An L-shaped rod is fixedly mounted on the outer surface of the rotating shaft, and a sliding rotating rod is rotatably mounted on the other end of the L-shaped rod.

8. The hydrogen storage device with a leakage protection structure according to claim 7, characterized in that: A cross is fixedly mounted on the bottom of the mounting plate, a sliding groove is provided at the bending portion of the cross, and the sliding rotating rod is slidably mounted inside the sliding groove.

9. The hydrogen storage device with a leakage protection structure according to claim 8, characterized in that: The number of the accommodating slots is four, and the four accommodating slots are evenly distributed along the axis of the supporting tray. A buffer spring is fixedly connected between the oppositely arranged L-shaped rods, and the buffer spring is arranged inside the cross.

10. The hydrogen storage device with a leakage protection structure according to claim 9, characterized in that: A pressure sensor is fixedly installed at the axis center of the supporting tray, and a connecting spring is fixedly connected between the pressure sensor and the bottom of the cross.

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