A hydrogen storage device having a leak protection structure

Abstract

The application discloses a hydrogen storage device with a leakage protection structure and relates to the technical field of hydrogen storage. The hydrogen storage device comprises a storage tank, a protection shell slidingly installed on the outer surface of the storage tank, a vent pipe fixedly installed on the top of the storage tank, a high-pressure valve fixedly installed on the top of the vent pipe, a gas outlet pipe fixedly installed on the outer surface of the storage tank, a gas leakage mechanism installed in the gas outlet pipe, an alarm fixedly installed on the outer surface of the protection shell, and a buffer mechanism installed between the bottom of the storage tank and the bottom of the inner cavity of the protection shell. The hydrogen storage device with the leakage protection structure automatically adjusts the pressure in the storage tank through the gas leakage mechanism, timely discharges the excess hydrogen when the pressure is too high, prevents the pressure from continuously rising to damage the storage tank, reduces the downward impact force when the storage tank is depressurized through the buffer mechanism, protects the structural integrity of the storage tank, and prolongs the service life of the storage tank.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen storage, in particular to a hydrogen storage device with a leakage protection structure. BACKGROUND

[0002] Hydrogen is a clean, efficient and widely used energy carrier, and its position in the energy field is becoming increasingly important. However, there are safety problems in the process of hydrogen storage. Hydrogen has the characteristics of small density, flammability, explosive, fast diffusion speed, etc.

[0003] The traditional hydrogen storage device lacks effective automatic pressure relief protection mechanism when facing the situation of abnormal increase of internal pressure of the storage tank. Once the internal pressure is too high, it may cause the storage tank to rupture, causing hydrogen leakage, and then causing fire, explosion and other serious safety accidents. At the same time, the existing hydrogen storage device has insufficient protection ability for external collision and other unexpected situations. The impact from the outside can easily damage the structure of the storage tank, increasing the risk of hydrogen leakage.

[0004] When hydrogen leaks, the existing storage device is difficult to effectively control and collect the leaked hydrogen. Hydrogen quickly spreads to the surrounding environment, not only causing energy waste, but also forming a flammable and explosive dangerous environment in the local area, greatly threatening the safety of personnel and surrounding facilities. SUMMARY

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a hydrogen storage device with a leakage protection structure, comprising:

[0006] A storage tank and a protective shell slidingly installed on the outer surface of the storage tank. The storage tank is used to store hydrogen, and the protective shell protects the storage tank from external object impact, preventing hydrogen leakage caused by impact damage to the storage tank. At the same time, a relatively closed space is formed between the protective shell and the storage tank, which can temporarily accommodate the leaked hydrogen when hydrogen leaks, preventing hydrogen from spreading to the surrounding environment. The top of the storage tank is fixedly installed with an air pipe, and the top of the air pipe is fixedly installed with a high-pressure valve for controlling the opening and closing of the air pipe.

[0007] When the high-pressure valve is closed, hydrogen leakage is prevented, and when the pressure in the storage tank needs to be adjusted, the high-pressure valve can be opened as needed to accurately control the discharge of gas, ensuring that the pressure in the storage tank is always within a safe range, The outer surface of the storage tank is fixedly provided with a gas outlet pipe, and the outer surface of the storage tank is fixedly provided with a reinforcing rib, which can enhance the structural strength of the storage tank, improve the pressure resistance of the storage tank, prevent the storage tank from deforming due to internal pressure during storage of high-pressure hydrogen, and prolong the service life of the storage tank, The inner wall of the protective shell is fixedly provided with a gas blocking ring, the inner side of the gas blocking ring is sealingly matched with the outer surface of the storage tank, the gas blocking ring divides the inner cavity of the protective shell into two chambers, and the gas outlet pipe is arranged in the upper chamber of the protective shell.

[0008] The outer surface of the protective shell is fixedly provided with a fixing ring, the lower surface of the fixing ring is fixedly provided with a support column, the bottom of the support column is fixedly provided with a base, and the outer surface of the protective shell is fixedly provided with an alarm, When the device detects abnormal pressure, the alarm will send an alarm signal to remind the staff to open the high-pressure valve in time.

[0009] The gas discharge mechanism is installed in the interior of the gas outlet pipe, and when the pressure in the storage tank increases, the gas discharge mechanism automatically discharges gas, so that the excess hydrogen enters the upper chamber of the protective shell, the pressure in the upper chamber of the protective shell increases, and the storage tank is pushed to move downward, The gas discharge mechanism prevents the pressure in the storage tank from being too high, and plays a pressure relief protection role.

[0010] The buffer mechanism is installed between the bottom of the storage tank and the bottom of the inner cavity of the protective shell, and when the storage tank is pushed to move downward, the buffer mechanism plays a role of buffering and shock absorption.

[0011] The gas discharge mechanism includes a gas outlet piece, the gas outlet piece is slidingly installed in the interior of the gas outlet pipe, the end of the gas outlet piece is fixedly provided with an arc-shaped baffle, the arc-shaped baffle is arranged in the interior of the storage tank, the arc-shaped baffle and the inner wall of the storage tank are fixedly connected with a reset spring, and the end of the gas outlet piece away from the arc-shaped baffle is provided with a gas blocking piece.

[0012] Preferably, the gas outlet piece includes a sliding column, the sliding column is slidingly installed in the interior of the gas outlet pipe, the interior of the sliding column is provided with an L-shaped gas outlet hole, the inner wall of the L-shaped gas outlet hole is fixedly provided with a gas guide piece, and the outer surface of the sliding column is provided with a spiral groove.

[0013] Preferably, the inner cavity of the storage tank is connected with the inner cavity of the protective shell through the L-shaped air outlet hole, the number of the L-shaped air outlet hole is three, and the three L-shaped air outlet holes are uniformly distributed along the axis of the sliding column, the air guide piece is a ring-shaped conical piece, and the air guide pieces are uniformly distributed on the inner wall of the L-shaped air outlet hole; when the pressure in the storage tank rises to a certain extent, the pressure pushes the arc-shaped baffle to drive 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 the hydrogen gas is discharged; the air guide piece guides the flow of hydrogen gas, so that the hydrogen gas is discharged more smoothly, and the air flow is buffered and dispersed to a certain extent.

[0014] Preferably, the air baffle includes a sleeve, the sleeve is rotatably installed at the air outlet end of the air outlet pipe, a reset spring two is fixedly installed inside the sleeve, the other end of the reset spring two is fixedly connected with a rotating pipe, the rotating pipe is slidably installed inside the sleeve, a fixed disc is fixedly installed at the end of the rotating pipe away from the reset spring two, and an air outlet hole is formed in the surface of the fixed disc.

[0015] Preferably, a sliding block is fixedly installed on the inner side of the sleeve, the sliding block is slidably installed inside the spiral groove, a sealing ring is fixedly installed on the surface of the fixed disc, and the sealing ring is sealingly matched with the side of the end of the sliding column.

[0016] Preferably, the number of the air outlet hole is three, and the three air outlet holes are uniformly distributed along the axis of the fixed disc; when the sliding column moves, the sleeve is driven to rotate through the cooperation of the spiral groove and the sliding block, and then the rotating pipe and the fixed disc are driven to rotate, so that the air outlet hole coincides with the L-shaped air outlet hole to achieve air discharge; after the air discharge is completed, the rotating pipe and the fixed disc are reset under the elastic force of the reset spring one, the air outlet hole and the L-shaped air outlet hole are staggered, the air outlet channel is closed to realize sealing again, and the sealing ring is sealingly matched with the side of the end of the sliding column when air discharge is not needed, so as to prevent hydrogen leakage.

[0017] Preferably, the buffer mechanism includes a supporting plate and a mounting disc, the supporting plate is fixedly installed at the bottom of the inner cavity of the protective shell, the mounting disc is fixedly installed at the bottom of the storage tank, a containing groove is formed in the top of the supporting plate, a rotating shaft is rotatably installed inside the containing groove, the rotating shaft is arranged at the side of the supporting plate, an L-shaped rod is fixedly installed on the outer surface of the rotating shaft, and a sliding rotating rod is rotatably installed at the other end of the L-shaped rod.

[0018] Preferably, a cross is fixedly installed at the bottom of the mounting disc, a sliding groove is formed at the bending part of the cross, and the sliding rotating rod is slidably installed inside the sliding groove; when the storage tank moves downward, the L-shaped rod rotates around the rotating shaft, and the sliding rotating rod slides in the sliding groove.

[0019] Preferably, the number of the accommodating grooves is four, and the four accommodating grooves are evenly distributed along the axis of the supporting tray, and the opposite L-shaped rods are fixedly connected with buffer springs, the buffer springs are arranged in the cross, when the L-shaped rods rotate, the buffer springs are compressed, and energy is absorbed through the elastic deformation of the buffer springs, thereby playing a buffering and damping role, reducing the influence of vibration and impact on the storage tank, and protecting the structural integrity of the storage tank.

[0020] Preferably, the axis of the supporting tray is fixedly connected with a pressure sensor, and the pressure sensor is fixedly connected with a connecting spring between the bottom of the cross, the pressure sensor is used for monitoring the pressure change of the storage tank on the supporting tray in real time, when the pressure is too large, a signal can be sent in time to remind the staff to open the high-pressure valve, and the connecting spring further enhances the buffering effect, and can also more accurately transmit the pressure change to the pressure sensor.

[0021] The application provides a hydrogen storage device with a leakage protection structure.

[0022] I. The hydrogen storage device with the leakage protection structure is provided with a gas leakage mechanism, when the pressure in the storage tank increases and exceeds the elastic force of the reset spring I, the pressure drives the arc-shaped baffle, the sliding column in the air outlet member slides in the air outlet pipe, the spiral groove on the outer surface of the sliding column cooperates with the sliding block on the inner surface of the sleeve in the baffle member, the sleeve rotates, and then drives the rotating pipe and the fixed disc to rotate, until the air outlet hole on the fixed disc coincides with the L-shaped air outlet hole in the sliding column, at this time, the excess hydrogen in the storage tank enters the upper chamber of the protection shell through the L-shaped air outlet hole and the air outlet hole, when the pressure in the storage tank decreases, the reset spring I pulls the arc-shaped baffle, and the sliding column is reset, the air outlet hole is staggered with the L-shaped air outlet hole after the rotation of the fixed disc, the air outlet channel is closed, and the gas leakage mechanism realizes the automatic adjustment of the pressure in the storage tank, the excess hydrogen is discharged in time when the pressure is too high, the damage of the continuous pressure rise to the storage tank is prevented, the dangerous situation caused by the rupture of the storage tank due to the excessive pressure in the storage tank is effectively avoided, the safety of the hydrogen storage device is greatly improved, and the probability of safety accidents is reduced.

[0023] II. The hydrogen storage device with the leakage protection structure is provided with a protection shell and a baffle ring, the protection shell is slidingly installed on the outer surface of the storage tank, the baffle ring is fixedly arranged on the inner wall of the protection shell and is sealingly matched with the outer surface of the storage tank, the inner cavity of the protection shell is divided into two chambers, when an external object collides with the storage tank, the protection shell first bears the impact force, and the storage tank is prevented from being directly damaged, if the storage tank leaks hydrogen, the leaked hydrogen accumulates in the relatively closed space formed by the protection shell and the storage tank, and is limited in the upper chamber, and cannot quickly spread to the surrounding environment, the protection shell reduces the risk of damage of the storage tank due to collision, effectively controls the diffusion of the leaked hydrogen, and gives the staff time to deal with the leakage situation, reduces the harm of hydrogen leakage to the environment and personnel.

[0024] Three, the hydrogen storage device with leakage protection structure, through the setting of the buffer mechanism, when the upper chamber of the protection shell increases the pressure due to the entry of hydrogen, the mounting disc at the bottom of the storage tank drives the cross to move down, the sliding rotary lever slides in the sliding groove, and the L-shaped rod rotates around the rotating shaft. The opposite L-shaped rod rotates to compress the buffer spring, and the connecting spring also deforms. The pressure sensor monitors the pressure change, and when the pressure decreases, the buffer spring and the connecting spring reset to drive the storage tank back to the initial position. During the downward movement of the storage tank, the elastic deformation of the buffer spring and the connecting spring absorbs energy, slows down the downward speed and impact force of the storage tank, protects the structural integrity of the storage tank, and prolongs the service life of the storage tank.

[0025] Four, the hydrogen storage device with leakage protection structure, through the setting of the alarm and the pressure sensor, the pressure sensor monitors the pressure change of the storage tank to 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 a 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 the pressure sensor realize real-time monitoring and early warning of abnormal pressure in the storage tank, so that the staff can intervene and handle in time, avoid serious safety accidents caused by not handling in time due to abnormal pressure, and improve the reliability and safety of the operation of the hydrogen storage device.

[0026] Five, the hydrogen storage device with leakage protection structure, through the setting of the reinforcing rib, the reinforcing rib is fixedly installed on the outer surface of the storage tank. During the storage of high-pressure hydrogen in the storage tank, the reinforcing rib and the storage tank body jointly bear the internal pressure, disperse the pressure through its own structural strength, enhance the overall pressure resistance of the storage tank, improve the structural strength of the storage tank, enhance its resistance to internal pressure, prevent the storage tank from deforming due to internal pressure, prolong the service life of the storage tank, and reduce the possibility of safety problems such as hydrogen leakage caused by deformation of the storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0028] Figure 2 It is a schematic diagram of the appearance of the present application;

[0029] Figure 3 It is a partial cross-sectional view of the protection shell of the present application;

[0030] Figure 4 It is a partial cross-sectional view of the storage tank of the present application;

[0031] Figure 5 It is a schematic diagram of the structure of the gas leakage mechanism of the present application;

[0032] Figure 6 It is a partial cross-sectional view of the gas leakage mechanism of the present application;

[0033] Figure 7 This is a cross-sectional view of the air baffle component of the present invention;

[0034] Figure 8 This is a schematic diagram of the buffer mechanism structure of the present invention;

[0035] Figure 9 This is a partial cross-sectional view of the buffer mechanism of the present invention.

[0036] In the diagram: 1. Storage tank; 2. Vent pipe; 3. High-pressure valve; 4. Venting mechanism; 41. Vent outlet; 411. Sliding column; 412. L-shaped vent; 413. Air guide plate; 414. Spiral groove; 42. Arc-shaped baffle; 43. Return spring one; 44. Air blocking component; 441. Pipe sleeve; 442. Rotary pipe; 443. Return spring two; 444. Sliding block; 445. Fixed plate; 446. Sealing ring; 447. Vent outlet; 5. 1. 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 rotating rod; 810. Pressure sensor; 811. Connecting spring; 9. Fixing ring; 10. Support column; 11. Base; 12. Alarm; 13. Reinforcing rib. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] First embodiment, such as Figures 1 to 4 As shown, the present invention provides a technical solution: a hydrogen storage device with a leakage protection structure, comprising:

[0039] The storage tank 1 and the protective shell 6 are slidably installed 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, thus avoiding hydrogen leakage caused by damage to the storage tank 1 due to collision. At the same time, the protective shell 6 and the storage tank 1 form a relatively closed space, which can temporarily contain the leaked hydrogen when a hydrogen leak occurs, preventing the hydrogen from spreading to the surrounding environment. A vent pipe 2 is fixedly installed on the top of the storage tank 1, and a high-pressure valve 3 is fixedly installed 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.

[0040] In normal storage, the high-pressure valve 3 is in a closed state to prevent hydrogen leakage, and when it is necessary to adjust the pressure in the storage tank 1, the high-pressure valve 3 can be opened as needed, and the discharge of the gas is accurately controlled to ensure that the pressure in the storage tank 1 is always within a safe range. The outer surface of the storage tank 1 is fixedly provided with a gas outlet pipe 5, and the outer surface of the storage tank 1 is fixedly provided with a reinforcing rib 13. The reinforcing rib 13 can enhance the structural strength of the storage tank 1, improve the pressure resistance of the storage tank 1, prevent the storage tank 1 from deforming due to internal pressure during storage of high-pressure hydrogen, prolong the service life of the storage tank 1, and the inner wall of the protective shell 6 is fixedly provided with a gas blocking ring 7. The inner side surface of the gas blocking ring 7 is sealingly fitted with the outer surface of the storage tank 1. The gas blocking ring 7 divides the inner cavity of the protective shell 6 into two chambers, and the gas outlet pipe 5 is arranged in the upper chamber of the protective shell 6.

[0041] The outer surface of the protective shell 6 is fixedly provided with a fixing ring 9, the lower surface of the fixing ring 9 is fixedly provided with a support column 10, the bottom of the support column 10 is fixedly provided with a base 11, and the outer surface of the protective shell 6 is fixedly provided with an alarm 12. When the device detects abnormal pressure, the alarm 12 will send an alarm signal to remind the staff to open the high-pressure valve 3 in time.

[0042] The gas discharge mechanism 4 is installed in the inside of the gas outlet pipe 5. When the pressure in the storage tank 1 increases, the gas discharge mechanism 4 automatically discharges to make the excess hydrogen enter the upper chamber of the protective shell 6, and the pressure in the upper chamber of the protective shell 6 increases to push the storage tank 1 to move downward. The gas discharge mechanism 4 prevents the pressure in the storage tank 1 from being too high, and plays a pressure relief protection role.

[0043] 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 to move downward, the buffer mechanism 8 plays a role of buffering and shock absorption.

[0044] The second embodiment is based on the first embodiment, please refer to Figures 5 to 7 As shown in the figure, the gas discharge mechanism 4 includes a gas outlet member 41, the gas outlet member 41 is slidingly installed in the inside of the gas outlet pipe 5, the end of the gas outlet member 41 is fixedly provided with an arc-shaped baffle 42, the arc-shaped baffle 42 is arranged in the inside of the storage tank 1, the arc-shaped baffle 42 and the inner wall of the storage tank 1 are fixedly connected with a reset spring 43, and the end of the gas outlet member 41 away from the arc-shaped baffle 42 is provided with a gas blocking member 44.

[0045] The gas outlet member 41 includes a sliding column 411, the sliding column 411 is slidingly installed in the inside of the gas outlet pipe 5, the inside of the sliding column 411 is provided with an L-shaped gas outlet hole 412, the inner wall of the L-shaped gas outlet hole 412 is fixedly provided with a gas guide piece 413, and the outer surface of the sliding column 411 is provided with a spiral groove 414.

[0046] The inner cavity of the storage tank 1 is communicated with the inner cavity of the protective shell 6 through the L-shaped gas outlet holes 412, the number of the L-shaped gas outlet holes 412 is three, and the three L-shaped gas outlet holes 412 are uniformly distributed along the axis of the sliding column 411, the gas guide piece 413 is a ring-shaped conical piece, and the gas guide pieces 413 are uniformly distributed on the inner wall of the L-shaped gas outlet hole 412; when the pressure in the storage tank 1 rises to a certain degree, the pressure pushes the arc-shaped baffle 42, drives the sliding column 411 to move, and makes the inner cavity of the storage tank 1 communicated with the inner cavity of the protective shell 6 through the L-shaped gas outlet holes 412, so that the hydrogen gas is discharged, the gas guide piece 413 guides the flow of hydrogen gas, so that the hydrogen gas is more smoothly discharged, and at the same time, the gas flow is buffered and dispersed to a certain extent;

[0047] The gas blocking piece 44 comprises a sleeve 441 rotatably installed at the gas outlet end of the gas outlet pipe 5, a reset spring 443 fixedly installed in the inside of the sleeve 441, a rotating pipe 442 fixedly connected to the other end of the reset spring 443, and a fixed disc 445 fixedly installed at the end of the rotating pipe 442 away from the reset spring 443, wherein the fixed disc 445 is provided with gas outlet holes 447 on the surface thereof;

[0048] The inside of the sleeve 441 is fixedly provided with a sliding block 444 slidably installed in the inside of the spiral groove 414, and the surface of the fixed disc 445 is fixedly provided with a sealing ring 446 in sealing fit with the side of the end of the sliding column 411;

[0049] The number of the gas outlet holes 447 is three, and the three gas outlet holes 447 are uniformly distributed along the axis of the fixed disc 445; when the sliding column 411 moves, the sleeve 441 is driven to rotate through the cooperation of the spiral groove 414 and the sliding block 444, and then the rotating pipe 442 and the fixed disc 445 are driven to rotate, so that the gas outlet holes 447 are coincided with the L-shaped gas outlet holes 412 to realize the gas discharge; after the gas discharge is completed, the rotating pipe 442 and the fixed disc 445 are reset under the elastic force of the reset spring 43, the gas outlet holes 447 are staggered with the L-shaped gas outlet holes 412, the gas outlet channel is closed to realize the sealing again, and the sealing ring 446 is in sealing fit with the side of the end of the sliding column 411 when the gas discharge is not needed, so as to prevent the hydrogen gas from leaking.

[0050] In the third embodiment, on the basis of the first and second embodiments, please refer to Figure 8 and Figure 9 The buffer mechanism 8 comprises a supporting disc 801 and a mounting disc 802, the supporting disc 801 is fixedly installed at the bottom of the inner cavity of the protective shell 6, the mounting disc 802 is fixedly installed at the bottom of the storage tank 1, the top of the supporting disc 801 is provided with a receiving groove 803, a rotating shaft 804 is rotatably installed in the inside of the receiving groove 803, the rotating shaft 804 is arranged at the side of the supporting disc 801, an L-shaped rod 805 is fixedly installed on the outer surface of the rotating shaft 804, and a sliding rotating rod 809 is rotatably installed at the other end of the L-shaped rod 805.

[0051] The bottom of the mounting disc 802 is fixedly installed with a cross 807, a sliding groove 808 is formed at the bending part of the cross 807, and a sliding rotating rod 809 is slidingly installed in the sliding groove 808; when the storage tank 1 moves downward, the L-shaped rod 805 rotates around the rotating shaft 804, and the sliding rotating rod 809 slides in the sliding groove 808;

[0052] The number of the accommodating grooves 803 is four, and the four accommodating grooves 803 are uniformly distributed along the axis of the supporting disc 801; the oppositely arranged L-shaped rods 805 are fixedly connected with buffer springs 806, the buffer springs 806 are arranged in the cross 807, and when the L-shaped rod 805 rotates, the buffer spring 806 is compressed and absorbs energy through elastic deformation, thereby playing a role of buffering and shock absorption, reducing the influence of vibration and impact on the storage tank 1, and protecting the structural integrity of the storage tank 1;

[0053] The axis of the supporting disc 801 is fixedly installed with a pressure sensor 810, and the pressure sensor 810 is fixedly connected with the bottom of the cross 807 through a connecting spring 811; the pressure sensor 810 is used for monitoring the pressure change of the storage tank 1 on the supporting disc 801 in real time, and when the pressure is too large, a signal can be sent 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 more accurately transmit the pressure change to the pressure sensor 810.

[0054] In use, the storage tank 1 normally stores hydrogen, the protection 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 protection shell 6 is relatively closed with the storage tank 1, the gas blocking ring 7 divides the inner cavity of the protection shell 6 into two chambers, the gas outlet pipe 5 is located in the upper chamber, the inner side surface of the gas blocking ring 7 is sealingly matched with the outer surface of the storage tank 1 to enhance the sealing property, the high-pressure valve 3 is in a closed state to prevent hydrogen from leaking through the breather pipe 2, and the sealed storage environment of hydrogen in the storage tank 1 is maintained;

[0055] When the hydrogen pressure in the storage tank 1 increases, the arc-shaped baffle 42 drives the sliding column 411 to move in the gas outlet pipe 5, at the same time, the spiral groove 414 on the outer surface of the sliding column 411 cooperates with the sliding block 444 on the inner side surface of the pipe sleeve 441 to drive the pipe sleeve 441 to rotate, thereby making the rotating pipe 442 and the fixed disc 445 rotate, until the gas outlet hole 447 coincides with the L-shaped gas outlet hole 412, the gas discharge channel is opened, hydrogen flows into the upper chamber of the protection shell 6 more smoothly through the L-shaped gas outlet hole 412 under the guidance of the gas guide piece 413, and the gas guide piece 413 plays a role of buffering and dispersing the airflow to avoid airflow impact; as hydrogen continuously enters the upper chamber of the protection shell 6, the pressure in the upper chamber gradually increases to drive the storage tank 1 to move downward, and the mounting disc 802 moves downward under the driving of the storage tank 1;

[0056] When the storage tank 1 moves downward, the cross 807 at the bottom of the mounting plate 802 moves downward, driving the sliding rotating rod 809 to slide in the sliding groove 808, and at the same time, the L-shaped rod 805 rotates around the rotating shaft 804, and the opposite L-shaped rod 805 rotates to compress the buffer spring 806, and the buffer spring 806 absorbs energy through its elastic deformation to slow down the downward speed of the storage tank 1, thereby playing a buffering and damping role and protecting the structural integrity of the storage tank 1;

[0057] During the downward movement of the storage tank 1, the pressure sensor 810 monitors the pressure change of the storage tank 1 on the supporting plate 801 in real time through the connecting spring 811, and if the pressure is too large, the pressure sensor 810 sends a signal to remind the worker to open the high-pressure valve 3 for manual auxiliary pressure relief;

[0058] When the pressure in the storage tank 1 drops to a certain extent due to air leakage, the reset spring 1 43 resets to pull the arc-shaped baffle 42, driving the sliding column 411 to reset, and during the resetting process of the sliding column 411, the pipe sleeve 441, the rotating pipe 442 and the fixed disc 445 are reversely rotated through the cooperation of the helical groove 414 and the sliding block 444, the gas outlet hole 447 and the L-shaped gas outlet hole 412 are staggered, the gas outlet channel is closed, the sealing ring 446 is sealed and matched with the side edge of the end of the sliding column 411, preventing hydrogen leakage, and at the same time, the storage tank 1 slowly moves upward to the initial position under the elastic force of the buffer spring 806.

[0059] It should be noted that in the present text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0060] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydrogen storage device having a leak protection structure, characterized by, Include: The tank (1), and the protective shell (6) slidingly installed on the outer surface of the tank (1), the top of the tank (1) is fixedly installed with a vent pipe (2), the top of the vent pipe (2) is fixedly installed with a high pressure valve (3), the outer surface of the tank (1) is fixedly installed with a gas outlet pipe (5), the outer surface of the tank (1) is fixedly installed with a reinforcing rib (13), the inner wall of the protective shell (6) is fixedly installed with a gas baffle (7), the inner side of the gas baffle (7) is sealingly matched with the outer surface of the tank (1), the outer surface of the protective shell (6) is fixedly installed with a fixed ring (9), the lower surface of the fixed ring (9) is fixedly installed with a support (10), the bottom of the support (10) is fixedly installed with a base (11), the outer surface of the protective shell (6) is fixedly installed with an alarm (12); The air release mechanism (4) is installed in the inside of the gas outlet pipe (5); The buffer mechanism (8) is installed between the bottom of the tank (1) and the bottom of the inner cavity of the protective shell (6); Wherein, the air release mechanism (4) includes an air outlet (41), the air outlet (41) is slidingly installed in the inside of the gas outlet pipe (5), the end of the air outlet (41) is fixedly installed with an arc baffle (42), the arc baffle (42) is arranged in the inside of the tank (1), the arc baffle (42) and the inner wall of the tank (1) are fixedly connected with a reset spring (43), one end of the air outlet (41) away from the arc baffle (42) is installed with a gas baffle (44); The gas baffle (44) includes a sleeve (441), the sleeve (441) is rotatably installed at the gas outlet end of the gas outlet pipe (5), the inside of the sleeve (441) is fixedly installed with a reset spring (443), the other end of the reset spring (443) is fixedly connected with a rotating pipe (442), the rotating pipe (442) is slidingly installed in the inside of the sleeve (441), the end of the rotating pipe (442) away from the reset spring (443) is fixedly installed with a fixed disc (445), the surface of the fixed disc (445) is provided with an air outlet hole (447); The air outlet (41) includes a slide column (411), the slide column (411) is slidingly installed in the inside of the gas outlet pipe (5), the inside of the slide column (411) is provided with an L-shaped air outlet hole (412), the inner wall of the L-shaped air outlet hole (412) is fixedly installed with a gas guide piece (413), the outer surface of the slide column (411) is provided with a spiral groove (414); The inner cavity of the tank (1) is communicated with the inner cavity of the protective shell (6) through the L-shaped air outlet hole (412), the number of the L-shaped air outlet hole (412) is three, and the three L-shaped air outlet holes (412) are evenly distributed along the axis of the slide column (411), the gas guide piece (413) is a ring-shaped conical piece, and the gas guide pieces (413) are evenly distributed on the inner wall of the L-shaped air outlet hole (412).

2. The hydrogen storage device with a leak protection structure according to claim 1, characterized in that: The inner side of the pipe sleeve (441) is fixedly installed with a sliding block (444), the sliding block (444) is slidingly installed in the inside of the spiral groove (414), the surface of the fixed disc (445) is fixedly installed with a sealing ring (446), and the sealing ring (446) is sealingly matched with the side of the end of the sliding column (411).

3. The hydrogen storage device with a leak protection structure according to claim 2, wherein: The number of the air outlet holes (447) is three, and the three air outlet holes (447) are uniformly distributed along the axis of the fixed disc (445).

4. The hydrogen storage device with a leak protection structure according to claim 1, wherein: The buffer mechanism (8) comprises a supporting tray (801) and a mounting disc (802), the supporting tray (801) is fixedly installed at the bottom of the inner cavity of the protection shell (6), the mounting disc (802) is fixedly installed at the bottom of the storage tank (1), the top of the supporting tray (801) is provided with an accommodating groove (803), the inside of the accommodating groove (803) is rotatably installed with a rotating shaft (804), the rotating shaft (804) is arranged at the side of the supporting tray (801), the outer surface of the rotating shaft (804) is fixedly installed with an L-shaped rod (805), and the other end of the L-shaped rod (805) is rotatably installed with a sliding rotating rod (809).

5. The hydrogen storage device with a leak protection structure according to claim 4, wherein: The bottom of the mounting disc (802) is fixedly installed with a cross (807), the bending part of the cross (807) is provided with a sliding groove (808), and the sliding rotating rod (809) is slidingly installed in the inside of the sliding groove (808).

6. The hydrogen storage device with a leak protection structure according to claim 5, wherein: The number of the accommodating grooves (803) is four, and the four accommodating grooves (803) are uniformly distributed along the axis of the supporting tray (801), and the opposite L-shaped rods (805) are fixedly connected with buffer springs (806) arranged in the inside of the cross (807).

7. The hydrogen storage device with a leak protection structure according to claim 6, wherein: The axis of the supporting tray (801) is fixedly installed with a pressure sensor (810), and the pressure sensor (810) and the bottom of the cross (807) are fixedly connected with a connecting spring (811).

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