Leak-proof alarm device for hydrogen storage device

Abstract

The invention relates to the field of hydrogen storage device alarm, in particular to a leakage-proof alarm device for a hydrogen storage device, which comprises a base, a vertical beam and the like, a vertical beam is fixedly connected to the base. The suspension beam and corresponding parts on the suspension beam are controlled through the DD motor to actively avoid obstacles, collision of main parts of the alarm is reduced, the alarm is prevented from being damaged, the horn-shaped top cover and the fan blades are arranged, blown air is more concentrated on the upper portion of the top cover, and therefore the detection result of the gas sensitive sensor is more accurate, and the safety of the alarm is improved. The detected gas enters the hollow vertical beam through the gas guide pipe and is finally discharged into air from the gas hole I below the vertical beam, the discharged hydrogen is far away from the position of the gas sensitive sensor, the false alarm condition is reduced, the density of the hydrogen is smaller than that of the air, so that the discharged hydrogen quickly floats upwards and is fully mixed with the air in the floating-up process, and the detection accuracy is improved. And the hydrogen concentration is further diluted, so that threats caused by hydrogen explosion are reduced.

Description

Technical Field

[0001] The invention relates to the field of hydrogen storage alarms, and in particular to an anti-leakage alarm device for a hydrogen storage. Background Art

[0002] The existing hydrogen storage leakage alarm is generally an integrated structure directly installed on the hydrogen storage. When the hydrogen storage or the alarm fails, it cannot be repaired or replaced separately. If the safety of use cannot be guaranteed, the company can only abandon the integrated hydrogen storage and then repurchase a safe and reliable new hydrogen storage. The production cost of the company is high. If a separate hydrogen leakage alarm is used, when hydrogen leaks, the hydrogen diffuses into the air. The general hydrogen leakage alarm can only passively contact the hydrogen in the air. After the hydrogen leaks, the detection result of the hydrogen concentration in the air is inaccurate, and the detection result will be delayed, resulting in untimely handling of the hydrogen leakage problem and hydrogen explosion. Summary of the invention

[0003] In order to overcome the shortcomings of the existing integrated hydrogen storage leakage alarm that it cannot be repaired or replaced separately when it fails, resulting in high cost and inaccurate and delayed detection results, which may cause hydrogen explosion, the present invention provides an anti-leakage alarm device for a hydrogen storage.

[0004] Technical solution: A leakage prevention alarm device for a hydrogen storage device, comprising a base and a vertical beam; the base is fixedly connected to the vertical beam; it also comprises a DD motor, a suspension beam, a hollow ring, an LED indicator light, a top cover, a suspension, a gas sensor, a buzzer and an air duct; the vertical beam is installed with a DD motor; the rotating part of the DD motor is fixedly connected to the suspension beam; the suspension beam is fixedly connected to the hollow ring; a number of LED indicator lights are installed on the hollow ring; the hollow ring is fixedly connected to the top cover; the top cover is fixedly connected to the suspension, and a data wireless transmission module is arranged in the suspension; a number of gas sensors are installed on the suspension; the suspension is installed with a buzzer; the top cover is connected to the air duct; the vertical beam is a hollow tube, and a number of air holes Ⅰ are opened at the lower part; the air duct is connected to the vertical beam.

[0005] More preferably, a distance sensor is provided in the vertical beam.

[0006] More preferably, all the LED indicator lights are equidistantly distributed on the outer surface of the hollow ring.

[0007] More preferably, the top cover is trumpet-shaped with the wide opening facing one side of the hydrogen storage body; a gap is left between the suspension and the top cover, and the gas sensor is located in the gap between the outer annular surface of the suspension and the top cover.

[0008] More preferably, the suspension is coated with an antistatic coating.

[0009] More preferably, it also includes a motor, gear I, a swivel, an outer gear ring and fan blades; the motor is installed on the hollow ring; the gear I is fixedly connected to the motor output shaft; the hollow ring is rotatably connected to the swivel; the outer gear ring is fixedly connected to the outer ring surface of the swivel; the outer gear ring is meshed with gear I; and a number of fan blades are fixedly connected to the inner ring surface of the swivel.

[0010] More preferably, it also includes a rotating shaft, a gear II, a fan and a sealing sheet; an annular cavity is left between the rotating ring and the hollow ring, and several rotating shafts are rotatably connected in the annular cavity; a gear II is fixedly connected to each rotating shaft; the outer gear ring is meshed with all the gears II; one of the rotating shafts is fixedly connected to the gear I; a fan is fixedly connected to the lower part of each rotating shaft; the hollow ring has several air holes I; each air hole I corresponds to a fan; the hollow ring has several air holes II; the hollow ring has several sealing sheets fixedly connected; only one end of the sealing sheet is fixed; the rotating ring has several air holes II.

[0011] More preferably, both air hole I and air hole II are provided with dustproof nets.

[0012] More preferably, it also includes a support frame and a placement shell; the base is fixedly connected to the support frame; the support frame is fixedly connected to the vertical beam; the support frame is fixedly connected to the placement shell; and the placement shell is detachably connected to the hydrogen storage device body.

[0013] More preferably, a cavity is opened inside the placement shell, and the cavity is filled with heat transfer liquid.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The DD motor controls the suspension beam and the corresponding parts thereon to actively avoid obstacles, thereby reducing the collision of the main components of the alarm to prevent the alarm from being damaged. A trumpet-shaped top cover and fan blades are provided. When the fan blades rotate, the air under the fan blades is blown upward, and the blown air is more concentrated on the upper part of the top cover, so that the gas sensor is in contact with the air more fully, and the gas sensor detection result is more accurate. After detection, the gas enters the hollow vertical beam through the air duct, and is finally discharged into the air from the air hole I under the vertical beam. The discharged hydrogen is far away from the position of the gas sensor, reducing the situation of false alarm. Because the density of hydrogen is smaller than that of air, the discharged hydrogen floats up quickly, and in the floating process, it is fully mixed with air to further dilute the hydrogen concentration and reduce the threat of hydrogen explosion.

[0015] 2. The buzzer makes a sound, and after the sound passes through the top cover, the top cover is equivalent to the function of a loudspeaker, making the sound energy of the buzzer more concentrated and the sound propagation distance farther. The staff can better locate the position of the leaking hydrogen storage body through the sound and the flashing LED indicator. According to the different colors of the flashing LED indicator lights, the danger level is determined, and then corresponding measures are taken to carry out emergency treatment of the hydrogen storage body, which greatly reduces the response time for hydrogen leakage. It has a simple structure, excellent effect, strong practicality, and greatly guarantees the production safety of the enterprise.

[0016] 3. By reversing the blades and the fan, the air is blown downward and flows to the hydrogen storage body, thereby locally diluting the hydrogen leaked from the hydrogen storage body. The hydrogen leaked from the hydrogen storage body is diluted specifically, effectively avoiding hydrogen explosion when the staff is dealing with the leakage problem of the hydrogen storage body, which greatly ensures the physical and mental health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the anti-leakage alarm device for the hydrogen storage device of the present invention; Figure 2 It is a partial cross-sectional view of the anti-leakage alarm device for the hydrogen storage device of the present invention; Figure 3 It is a schematic diagram of the internal structure of the hollow ring and the top cover of the present invention; Figure 4 It is a schematic diagram of the fan installation position of the present invention.

[0018] Among them, the above-mentioned drawings include the following drawing marks: 001-hydrogen storage body, 1-base, 2-vertical beam, 3-DD motor, 4-suspension beam, 5-hollow ring, 6-LED indicator light, 7-top cover, 8-suspension, 9-gas sensor, 10-buzzer, 11-air duct, 12-support frame, 13-placement shell, 2001-air hole I, 101-motor, 102-gear I, 103-swivel ring, 104-outer gear ring, 105-fan blades, 201-rotating shaft, 202-gear II, 203-fan, 204-sealing plate, 5001-air hole I, 5002-air hole II, 10301-air hole II. DETAILED DESCRIPTION

[0019] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0020] Embodiment 1 A leakage alarm device for a hydrogen storage device, according to Figure 1-Figure 4 As shown, it includes a base 1 and a vertical beam 2; the vertical beam 2 is fixedly connected to the base 1; It also includes a DD motor 3, a suspension beam 4, a hollow ring 5, an LED indicator light 6, a top cover 7, a suspension 8, a gas sensor 9, a buzzer 10 and an air duct 11; the vertical beam 2 is installed with a DD motor 3; the rotating part of the DD motor 3 is fixedly connected to the suspension beam 4; the suspension beam 4 is bolted with a hollow ring 5; the hollow ring 5 is installed with a number of LED indicator lights 6; the upper part of the hollow ring 5 is bolted with a top cover 7; the top cover 7 is fixedly connected to the suspension 8, and a data wireless transmission module is arranged in the suspension 8; a number of gas sensors 9 are installed on the side of the suspension 8; a buzzer 10 is installed on the upper part of the suspension 8; the gas sensor 9 is located above the hydrogen storage device body 001; the upper part of the top cover 7 is connected with an air duct 11; the vertical beam 2 is a hollow tube, and a number of air holes Ⅰ2001 are opened at the lower part; the air duct 11 is connected with the vertical beam 2.

[0021] A distance sensor is arranged inside the vertical beam 2 .

[0022] All LED indicator lights 6 are equidistantly distributed on the outer surface of the hollow ring 5, and are used to flash synchronously to warn the surroundings, so that surrounding personnel at all locations can receive light warnings as quickly as possible, and different colors are set for the LED indicator lights 6. Different colors and flashing of the LED indicator lights 6 indicate different alarm levels, and the information expression is richer.

[0023] The top cover 7 is trumpet-shaped, and the large opening faces one side of the hydrogen storage body 001; the suspension 8 is located in the middle of the small opening of the top cover 7; there is a gap between the suspension 8 and the top cover 7, and the gas sensor 9 is located in the gap between the outer ring surface of the suspension 8 and the top cover 7, so that when the airflow passes through the gap between the outer ring surface of the suspension 8 and the top cover 7, the gas sensor 9 is in full contact with the airflow and detects the hydrogen content therein.

[0024] The suspension 8 is coated with an antistatic coating to reduce dust adhesion to the suspension 8 .

[0025] It also includes a motor 101, a gear I 102, a rotating ring 103, an outer gear ring 104 and blades 105; the motor 101 is installed on the upper part of the hollow ring 5; the gear I 102 is fixedly connected to the output shaft of the motor 101; the rotating ring 103 is rotatably connected to the hollow ring 5; the outer gear ring 104 is fixedly connected to the outer ring surface of the rotating ring 103; the outer gear ring 104 is meshed with the gear I 102; and a number of blades 105 are welded to the inner ring surface of the rotating ring 103.

[0026] The working steps of the above embodiment are: Before use, first hook the two lifting ears on the hydrogen storage body 001 with an external crane, such as Figure 1 and Figure 2 As shown, the hydrogen storage body 001 is moved to a position close to the base 1, and the distance sensor on the vertical beam 2 detects that the hydrogen storage body 001 is approaching. At this time, the DD motor 3 is controlled to start, and the DD motor 3 drives the suspension beam 4 and the corresponding parts thereon to rotate, so that the hollow ring 5 and the corresponding parts thereon are away from the top of the base 1, and then the hydrogen storage body 001 is moved to the top of the base 1, and the hydrogen storage body 001 is fixed, and then the external crane is controlled to release the hydrogen storage body 001, and then the DD motor 3 is controlled to start, so that the hollow ring 5 and the corresponding parts thereon are reset. Since the hydrogen leakage alarm is a highly sensitive device, active avoidance is used to reduce the collision of the main components of the alarm to avoid damage to the alarm, false alarms and missed reports, and ensure the safety of the working environment. At this time, the gas sensitive sensor 9 is located above the hydrogen storage body 001, and the hydrogen storage material in the hydrogen storage body 001 begins to release hydrogen for production and life In use, since the density of hydrogen is much smaller than the density of air, and the hydrogen storage body 001 is generally an integrally formed high-pressure container, if the hydrogen storage body 001 leaks, the leak position is generally located at the pipeline interface, and the leaked hydrogen quickly floats up and is then detected by the gas sensor 9, and then the gas sensor 9 imports the hydrogen content data into the computer through the preset data wireless transmission module in the suspension 8, and then the computer monitors and analyzes the hydrogen content in real time. If the hydrogen concentration exceeds the standard, the computer feeds back and controls the LED indicator lights 6 of different colors to flash, indicating different danger alarm levels, and at the same time controls the start of the buzzer 10 to warn the staff in the workshop, so that the staff can quickly reach the location of the leaking hydrogen storage body 001, and deal with the problem of the leakage of the hydrogen storage body 001, and the separate repair and replacement of the hydrogen storage body 001 and the alarm are more convenient and low-cost.

[0027] On the basis of the above operations, we also need to consider that in order to give an alarm when the hydrogen storage body 001 leaks, the alarm-related components will not be too large, so they cannot completely cover the upper part of the hydrogen storage body 001. The leaked hydrogen escapes into the air without passing through the position of the gas sensitive sensor 9, resulting in delayed alarm, and the problem of hydrogen leakage is not dealt with in time, resulting in the danger of hydrogen explosion. A rotating ring 103 and its related components are added here to control the starting motor 101. The output shaft of the motor 101 drives the gear Ⅰ102 to drive the outer gear ring 104 to rotate, and the outer gear ring 104 drives the rotating ring 103 to drive the fan blades 105 to rotate. Looking from top to bottom, the rotating ring 103 rotates clockwise, and the fan blades 105 blow the air below upwards. With the cooperation of the trumpet-shaped top cover 7, the blown air is more concentrated on the upper part of the top cover 7, thereby making the gas sensitive sensor 9 and the air The contact is more complete, and the gas sensor 9 can detect the hydrogen content in the air more fully, and obtain a hydrogen content in the air that is closer to the actual hydrogen content. By actively concentrating the air to the position of the gas sensor 9, the hydrogen content in the air is detected to avoid excessive hydrogen content, which leads to failure to detect it in time, untimely treatment of hydrogen leakage, and hydrogen explosion. The air blown into the top cover 7 enters the hollow vertical beam 2 through the air guide pipe 11 after being detected by the gas sensor 9, and is finally discharged into the air from the air hole Ⅰ2001 serving as the air outlet under the vertical beam 2. The discharged hydrogen is far away from the position of the gas sensor 9, reducing the false alarm. Because the density of hydrogen is smaller than that of air, the discharged hydrogen floats up quickly, and in the process of floating up, it is fully mixed with air to further dilute the hydrogen concentration, reducing the threat of hydrogen explosion.

[0028] And if the gas sensor 9 detects that the hydrogen content in the air exceeds the standard, the buzzer 10 automatically starts to remind the staff in the workshop that there is a hydrogen leakage. The buzzer 10 makes a sound, and after the sound passes through the top cover 7, the trumpet-shaped top cover 7 is equivalent to the function of a loudspeaker, so that the sound energy emitted by the buzzer 10 is more concentrated and the sound propagation distance is also farther. The staff can better locate the position of the leaking hydrogen storage body 001 through the sound and the flashing LED indicator 6, and perform emergency treatment on the hydrogen storage body 001, which greatly reduces the reaction time for the treatment of hydrogen leakage. The structure is simple, the effect is excellent, the practicability is strong, and the production safety of the enterprise is greatly guaranteed.

[0029] Second embodiment On the basis of the first embodiment, according to Figure 1-Figure 4As shown, it also includes a rotating shaft 201, a gear II 202, a fan 203 and a sealing sheet 204; an annular cavity is left between the rotating ring 103 and the hollow ring 5, and a number of rotating shafts 201 are rotatably connected in the annular cavity; each rotating shaft 201 is fixedly connected to a gear II 202; the outer gear ring 104 is meshed with all the gears II 202; one of the rotating shafts 201 is fixedly connected to the gear I 102; a fan 203 is fixedly connected to the lower part of each rotating shaft 201; a number of air holes I 5001 are opened at the lower part of the hollow ring 5; each air hole I 5001 corresponds to a fan 203; a number of air holes II 5002 are opened at the upper part of the hollow ring 5; a number of sealing sheets 204 are fixedly connected to the upper part of the hollow ring 5; the sealing sheet 204 is made of rubber; only one end of the sealing sheet 204 is fixed; the rotating ring 103 is opened with a number of air holes II 10301.

[0030] Dust-proof nets are provided at both air hole Ⅰ5001 and air hole Ⅱ5002.

[0031] It also includes a support frame 12 and a placement shell 13; the base 1 is fixedly connected to the support frame 12; the support frame 12 is fixedly connected to the vertical beam 2; the support frame 12 is welded with the placement shell 13; the placement shell 13 is detachably connected to the hydrogen storage device body 001.

[0032] A cavity is opened inside the placement shell 13, and a heat transfer liquid is poured into the cavity. The temperature of the placement shell 13 is controlled by controlling the temperature of the heat transfer liquid.

[0033] The working steps of the above embodiment are: On the basis of the above embodiment, the air is concentrated to the gas sensor 9 through the rotation of the fan blade 105, the gas sensor 9 is in contact with the air more fully, and the detection of the hydrogen content in the air is more accurate. Therefore, a fan 203 is added. When the outer gear ring 104 rotates, it drives the corresponding gear II 202 to rotate, and drives the corresponding fan 203 to rotate through the rotating shaft 201, so that the air passes through the air hole I 5001 and enters the annular cavity between the hollow ring 5 and the rotating ring 103. At this time, each sealing sheet 204 blocks the corresponding air hole II 5002, and the air pressure in the annular cavity increases, so that the air entering the annular cavity passes through the air hole II 10301 and enters the rotating area of ​​the fan blade 105, and then with the rotation of the fan blade 105, the air is blown upward, thereby increasing the flow of air passing through the gas sensor 9, so that the detection result of the hydrogen content in the air is more accurate.

[0034] It should also be considered that after the staff receives the alarm and arrives near the hydrogen storage body 001 where the hydrogen leakage occurs, the staff generally closes the relevant pipeline connection switch on the hydrogen storage body 001. At this time, the staff can also connect the external thermal fluid circulation equipment through the conduit on the placement shell 13 to extract the thermal fluid in the placement shell 13, and then pump the cooled thermal fluid into the placement shell 13, thereby controlling the placement shell 13 to cool down. Through the direct contact between the placement shell 13 and the hydrogen storage body 001, the temperature of the hydrogen storage body 001 is reduced, thereby reducing the release of hydrogen in the hydrogen storage body 001 and reducing the leakage of hydrogen. The thermal fluid can also be heated by the external thermal fluid circulation equipment so that the hydrogen storage The temperature of the main body 001 rises, and the hydrogen storage material in the hydrogen storage body 001 releases hydrogen to provide the needs of production and life. However, the leaked hydrogen generally needs to be controlled to open the ventilation equipment in the workshop to force the flow of air in the workshop, and then discharge the air in the workshop to the outside, thereby diluting the hydrogen concentration in the workshop air to avoid hydrogen explosion. However, it takes a long time to replace the air in the workshop through the ventilation equipment in the workshop, and the content of hydrogen leakage near the hydrogen storage body 001 will be higher. At this time, the LED indicator 6 and the buzzer 10 continue to work, and the output shaft of the starter motor 101 is controlled to reverse. Looking from top to bottom, the rotating ring 103 rotates counterclockwise, and synchronously drives When the fan blades 105 rotate and blow the upper air downward, negative pressure is formed inside the top cover 7, and the outside air enters the hollow vertical beam 2 through the air hole Ⅰ2001 serving as the air inlet, and then the outside air enters the top cover 7 through the air guide pipe 11. The outside air needs to pass through a long and tortuous path to reach the position of the fan blades 105, and then the air is blown downward as the fan blades 105 rotate. The blown air has limited effect on diluting hydrogen, so the outer gear ring 104 and the gear II 202 cooperate to synchronously drive the fan 203 to reverse. When the fan 203 rotates, the air in the annular cavity is blown downward through the air hole Ⅰ5001, and the air pressure in the annular cavity is reduced. At this time, the rubber sealing sheet 204 is deformed. The movable end of the sealing piece 204 is separated from the hollow ring 5, and the air hole II 5002 is opened, and the outside air enters the annular cavity, and then with the rotation of the fan 203, the air flows downward. At this time, the air blown out of the annular cavity and the air blown out by the rotation of the fan blades 105 both flow to the hydrogen storage body 001. The fan blades 105 blow out the air downward, which increases the air flow blown to the hydrogen storage body 001, thereby quickly locally diluting the hydrogen leaked from the hydrogen storage body 001, and specifically diluting the hydrogen leaked from the hydrogen storage body 001, effectively avoiding the situation where the local hydrogen concentration is too high when the staff is dealing with the leakage problem of the hydrogen storage body 001, resulting in a hydrogen explosion, thereby greatly ensuring the physical and mental health of the staff.

[0035] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A leakage prevention alarm device for a hydrogen storage device, comprising a base (1) and a vertical beam (2); the vertical beam (2) is fixedly connected to the base (1); the characteristics are: The invention also comprises a DD motor (3), a suspension beam (4), a hollow ring (5), an LED indicator light (6), a top cover (7), a suspension frame (8), a gas sensor (9), a buzzer (10) and an air duct (11); the vertical beam (2) is equipped with a DD motor (3); the rotating part of the DD motor (3) is fixedly connected to the suspension beam (4); the suspension beam (4) is fixedly connected to the hollow ring (5); the hollow ring (5) is equipped with a plurality of LED indicator lights (6); the hollow ring (5) is fixedly connected to the top cover (7); the top cover (7) is fixedly connected to the suspension frame (8), and a data wireless transmission module is arranged in the suspension frame (8); a plurality of gas sensors (9) are installed on the suspension frame (8); the suspension frame (8) is equipped with a buzzer (10); the top cover (7) is connected to the air duct (11); the vertical beam (2) is a hollow tube, and a plurality of air holes I (2001) are opened at the lower part; the air duct (11) is connected to the vertical beam (2).

2. The anti-leakage alarm device for a hydrogen storage device according to claim 1, characterized in that: A distance sensor is arranged inside the vertical beam (2).

3. The anti-leakage alarm device for a hydrogen storage device according to claim 1, characterized in that: All LED indicator lights (6) are evenly distributed on the outer ring surface of the hollow ring (5).

4. The anti-leakage alarm device for a hydrogen storage device according to claim 1, characterized in that: The top cover (7) is trumpet-shaped, with a large opening facing one side of the hydrogen storage body (001); a gap is left between the suspension (8) and the top cover (7), and the gas sensor (9) is located in the gap between the outer annular surface of the suspension (8) and the top cover (7).

5. The anti-leakage alarm device for a hydrogen storage device according to claim 1, characterized in that: The suspension (8) is coated with an antistatic coating.

6. The anti-leakage alarm device for a hydrogen storage device according to claim 1, characterized in that: The invention also comprises a motor (101), a gear I (102), a rotating ring (103), an outer gear ring (104) and blades (105); the motor (101) is mounted on the hollow ring (5); the gear I (102) is fixedly connected to the output shaft of the motor (101); the rotating ring (103) is rotatably connected to the hollow ring (5); the outer gear ring (104) is fixedly connected to the outer ring surface of the rotating ring (103); the outer gear ring (104) is meshed with the gear I (102); and a plurality of blades (105) are fixedly connected to the inner ring surface of the rotating ring (103).

7. The anti-leakage alarm device for a hydrogen storage device according to claim 6, characterized in that: The invention also comprises a rotating shaft (201), a gear II (202), a fan (203) and a sealing sheet (204); an annular cavity is left between the rotating ring (103) and the hollow ring (5), and a plurality of rotating shafts (201) are rotatably connected in the annular cavity; a gear II (202) is fixedly connected to each rotating shaft (201); the outer gear ring (104) meshes with all the gears II (202); one of the rotating shafts (201) is fixedly connected to the gear I (102); The hollow ring (5) is connected to the rotating shaft (201); a fan (203) is fixedly connected to the lower part of each rotating shaft (201); a plurality of air holes I (5001) are formed in the hollow ring (5); each air hole I (5001) corresponds to a fan (203); a plurality of air holes II (5002) are formed in the hollow ring (5); a plurality of sealing sheets (204) are fixedly connected to the hollow ring (5); only one end of the sealing sheet (204) is fixed; and a plurality of air holes II (10301) are formed in the rotating ring (103).

8. The anti-leakage alarm device for a hydrogen storage device according to claim 7, characterized in that: Dust-proof nets are provided at both air hole Ⅰ (5001) and air hole Ⅱ (5002).

9. A leakage prevention alarm device for a hydrogen storage device according to any one of claims 1 to 8, characterized in that: It also includes a support frame (12) and a placement shell (13); the base (1) is fixedly connected to the support frame (12); the support frame (12) is fixedly connected to the vertical beam (2); the support frame (12) is fixedly connected to the placement shell (13); and the placement shell (13) is detachably connected to the hydrogen storage device body (001).

10. The anti-leakage alarm device for a hydrogen storage device according to claim 9, characterized in that: A cavity is opened inside the placement shell (13), and the cavity is filled with heat transfer liquid.

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