Air inlet control device of normal-pressure hydrogen explosion venting tank

Abstract

The utility model relates to an air inlet control device of a normal pressure hydrogen explosion venting tank, which belongs to the field of hydrogen explosion teaching devices and comprises a hydrogen tank, the hydrogen tank is connected with a flow meter, and one end of the flow meter is connected with a first electromagnetic valve; the air inlet pressing plate is used for sealing an air inlet of the ball body; the air inlet pressing plate is connected with at least one guiding pipe, one end of the guiding pipe is connected to the air inlet pressing plate, and the other end of the guiding pipe is located at the top of the ball cavity. The first electromagnetic valve is communicated with the guide pipe through a pipeline assembly; the air inlet pressing plate is further connected with an air outlet pipe, one end of the air outlet pipe is connected to the air inlet pressing plate, and the other end is located at the bottom of the ball cavity. The air inlet pressing plate is connected with an exhaust pipe, the exhaust pipe is communicated with the air outlet pipe, and the exhaust pipe is connected with a second electromagnetic valve; an ignition rod is connected to the air inlet pressing plate, and the ignition end of the ignition rod is located in the ball. A control device is further included. The device can avoid vacuumizing of the ball body, and can also ensure that the ratio of hydrogen to air is accurate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen explosion teaching device field, concretely relates to the atmospheric hydrogen leak explosion tank air control device. BACKGROUND

[0002] The patent with the application number CN202322873546.5 and the name of a hydrogen air premixed gas spherical explosion wave generating device is the prior research technology of the utility model person. It is mentioned in the patent that when the device is inflated, air and hydrogen are simultaneously filled into the two ports of the upper end of the Y-shaped inflation pipe according to the designed ratio, the air and hydrogen are mixed at the lower end of the Y-shaped inflation pipe, and the mixed gas is then filled into the sphere. After a period of time, the mixed gas will expel all the air in the original sphere, so that the sphere is considered to be a mixture of air and hydrogen according to the designed ratio.

[0003] In actual conditions, the inflation is not perfectly achieved as described above. In actual conditions, because the density of hydrogen is only 1 / 14 of the density of air, the mixed gas at the lower end of the Y-shaped inflation pipe will quickly separate into hydrogen and air after entering the sphere. The hydrogen accumulates at the top of the sphere, and it is difficult to expel the hydrogen from the sphere. The lower air is instead squeezed out of the sphere by the hydrogen. With the continuous entry of mixed gas, the volume of hydrogen in the sphere becomes larger and larger, and the volume of air becomes smaller and smaller. The mixing ratio of air and hydrogen in the sphere is no longer the designed ratio, resulting in a large deviation in the test when studying the influence of explosion wave.

[0004] In order to solve the above problems, the utility model person has considered another way to fill the sphere with air, that is, to use a gas distributor. The use of a gas distributor is as follows: first, the cavity of the sphere is evacuated, and then air and hydrogen are filled into the sphere according to the designed volume, so that a mixture of air and hydrogen according to the designed ratio is obtained. However, the use of a gas distributor requires a high anti-explosion level of the sphere, i.e. the sphere can resist atmospheric pressure under vacuum conditions, which requires improving the anti-explosion level of the sphere and re-manufacturing the sphere. Improving the manufacturing process of the sphere will cause great difficulty in the manufacturing process, such as re-manufacturing the mold. Utility model content

[0005] The atmospheric hydrogen leak explosion tank air control device of the utility model does not need to evacuate the sphere before filling hydrogen and air into the sphere, and does not need to improve the manufacturing process of the sphere. Moreover, it also avoids the inaccurate mixing ratio of air and hydrogen in the prior art.

[0006] The atmospheric hydrogen leak explosion tank air control device of the utility model comprises a hydrogen tank, a flowmeter connected to the gas outlet of the hydrogen tank, and a first electromagnetic valve connected to the end of the flowmeter away from the hydrogen tank.

[0007] The air inlet pressing plate is installed on the sphere and seals the air inlet of the sphere;

[0008] The air inlet pressing plate is installed on the sphere and seals the air inlet of the sphere;

[0009] The air inlet pressing plate is installed on the sphere and seals the air inlet of the sphere;

[0010] The air inlet pressing plate is installed on the sphere and seals the air inlet of the sphere;

[0011] The air inlet pressing plate is installed on the sphere and seals the air inlet of the sphere;

[0012] Further, the pipeline assembly comprises:

[0013] A one-to-many gas pipe, one end of which is connected to the first electromagnetic valve; the end of the one-to-many gas pipe connected to the first electromagnetic valve is defined as the a end;

[0014] A plurality of first quick connectors are respectively connected to the other ends of the one-to-many gas pipe except the a end;

[0015] A plurality of guide pipes are respectively arranged corresponding to the first quick connectors; one end of each guide pipe is connected to a corresponding first quick connector; a plurality of guide pipes are also arranged corresponding to the guide pipes; the guide pipes and the guide pipes can communicate with each other;

[0016] A plurality of second quick connectors are respectively arranged corresponding to the guide pipes; the other end of each guide pipe is connected to a corresponding second quick connector.

[0017] Under the condition of ensuring equal air intake, the gas flow rate at the end of the guide pipe is reduced through the one-to-many gas pipe, which is beneficial to the condensation and accumulation of hydrogen gas at the top of the cavity of the sphere.

[0018] Further, a plurality of one-way valves are arranged on the air inlet pressing plate, the one-way valves are arranged corresponding to the second quick connectors, one end of each one-way valve can communicate with a corresponding second quick connector, and the other end of each one-way valve can communicate with a corresponding guide pipe.

[0019] The single-way valve has three functions, 1. preventing the backflow of the gas in the ball when the pressure of the air inlet pipeline is insufficient; 2. preventing the damage to the air inlet pipeline caused by the high pressure and temperature in the ball at the moment of explosion; and 3. preventing the interference of the backflow of the air inlet pipeline to the shock wave at the explosion vent.

[0020] Further, the first electromagnetic valve and the second electromagnetic valve are both normally closed electromagnetic valves.

[0021] When the control device does not supply power to the first electromagnetic valve and the second electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve are both in the closed state, effectively preventing the ball cavity from being in communication with the outside atmosphere.

[0022] Further, the one-to-many gas pipeline is a one-to-three gas pipeline.

[0023] The structure is relatively compact. If the conversion port is greater than three, the single-way valve and other components installed on the air inlet pressure plate will be too numerous, causing the complexity of the equipment to rise. If the conversion port is less than three, the hydrogen gas flowing out of the end of the guide pipe cannot be effectively slowed down. Therefore, the one-to-three gas pipeline is the most suitable.

[0024] Advantages

[0025] When the device is filled with gas in the ball cavity, the guide pipe is arranged, and the end of the guide pipe is located at the top of the ball cavity. At the same time, the gas outlet pipe is arranged, and the gas outlet pipe is located at the bottom of the ball cavity. The hydrogen gas entering the ball cavity from the guide pipe can be gathered at the top of the ball cavity. The gathered hydrogen gas can discharge the air from the gas outlet pipe out of the ball cavity, achieving the purpose of normal pressure filling. The situation of first vacuumizing the ball cavity is avoided, and the manufacturing process of the ball is not required to be improved.

[0026] Because the guide pipe is arranged, and the end of the guide pipe is located at the top of the ball cavity. At the same time, the gas outlet pipe is arranged, and the gas outlet pipe is located at the bottom of the ball cavity. In addition, the flowmeter is arranged. Therefore, only hydrogen gas is filled during the filling process. The volume of the hydrogen gas filled into the ball can be calculated by multiplying the flow rate of the hydrogen gas by the ventilation time. Combined with the known volume of the ball cavity, the ratio of hydrogen gas and air in the cavity can be calculated. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the device.

[0028] Figure 2 It is an explosion diagram of the connection of the guide pipe and the first threaded joint pipe of the device.

[0029] 1, hydrogen tank; 2, flow meter; 3, first solenoid valve; 4, one-turn multi-gas pipe; 5, first quick connector; 6, inlet pipe; 7, second quick connector; 8, check valve; 9, gas inlet pressing plate; 10, first threaded connector pipe; 11, ignition rod; 12, guide pipe; 13, second threaded connector pipe; 14, gas outlet pipe; 15, exhaust pipe; 16, second solenoid valve; 17, buckle quick connector nut; 171, clamping ring; 172, snap ring; 173, quick connector nut. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] See Figure 1 , normal pressure hydrogen gas explosion venting tank gas inlet control device, including hydrogen tank 1, the gas outlet of hydrogen tank 1 is connected with flow meter 2 through flange, the end of flow meter 2 away from hydrogen tank 1 is connected with first solenoid valve 3 through flange.

[0032] The end of first solenoid valve 3 away from flow meter 2 is connected with one-turn multi-gas pipe 4 through flange. In the embodiment, one-turn multi-gas pipe 4 is one-turn three-gas pipe, and one-turn three-gas pipe is a special-shaped four-way pipe. One end of four-way pipe connected with first solenoid valve 3 is marked as a end, and the other three ends are marked as b end, c end and d end respectively.

[0033] Among them, the circumferential outer wall of a end is welded with flange, and a end is connected with the flange of the corresponding end of first solenoid valve 3 through the flange. At this time, when first solenoid valve 3 is opened, one-turn multi-gas pipe 4 can be communicated with first solenoid valve 3, flow meter 2 and hydrogen tank 1 in turn. Hydrogen in hydrogen tank 1 can flow into a end through flow meter 2 and first solenoid valve 3, and then flow to b end, c end and d end at the same time from a end respectively. First solenoid valve 3 is electrically connected with control device, and control device is upper computer. Control device is also electrically connected with flow meter 2.

[0034] B end, c end and d end are respectively connected with first quick connector 5, and the model of first quick connector 5 is PC12-02. First quick connector 5 belongs to prior art. The quick connector of PC12-02 model has a through hole itself, and the outer thread is arranged on the end of first quick connector 5.

[0035] When the installer connects the three first quick connectors 5 to the b end, the c end and the d end respectively, the installer only needs to insert the b end, the c end and the d end into the through holes from the non-external thread end of the corresponding first quick connector 5 respectively. After the b end, the c end and the d end are inserted into the through hole of the corresponding first quick connector 5, the internal structure in the through hole of the corresponding first quick connector 5 will clamp the b end, the c end and the d end. The internal structure in the first quick connector 5 can not only prevent the b end, the c end and the d end from being separated from the first quick connector 5, but also can maintain the sealing of the first quick connector 5 with the b end, the c end and the d end respectively.

[0036] The application also comprises a plurality of lead-in pipes 6, and the lead-in pipes 6 are arranged one by one with the first quick connectors 5. In the embodiment, there are three lead-in pipes 6. As seen from one of the lead-in pipes 6, one end of the lead-in pipe 6 is provided with an internal thread, and the end of the lead-in pipe 6 provided with the internal thread is threadedly connected with the end of the corresponding first quick connector 5 provided with the external thread.

[0037] The other end of each lead-in pipe 6 away from the first quick connector 5 is connected with a second quick connector 7, and the second quick connector 7 is of the same type as the first quick connector 5, that is, PC12-02. The second quick connector 7 also has a through hole, and the end of the through hole is provided with an external thread. The end of the lead-in pipe 6 away from the first quick connector 5 is inserted into the through hole of the end of the second quick connector 7, and the connection mode is the same as that of the first quick connector 5 with the b end, the c end and the d end. The lead-in pipe 6 is connected with the second quick connector 7 through the internal structure of the second quick connector 7. After the lead-in pipe 6 is connected with the second quick connector 7, the internal structure of the second quick connector 7 seals the lead-in pipe 6 and the second quick connector 7, and prevents the lead-in pipe 6 from being separated from the second quick connector 7.

[0038] The application also comprises a plurality of one-way valves 8, and the one-way valves 8 are arranged one by one with the second quick connectors 7. In the embodiment, the type of the one-way valve 8 is LSV08-227, both ends of the one-way valve 8 are provided with internal threads, and the end of the one-way valve 8 corresponding to the second quick connector 7 is threadedly connected with the end of the second quick connector 7 provided with the external thread.

[0039] The application also comprises an air inlet pressing plate 9, and the air inlet pressing plate 9 is installed on the air inlet of the ball through bolts. The air inlet pressing plate 9 is used to block the air inlet of the ball.

[0040] Five through holes are formed in the air inlet pressing plate 9, and three of the through holes are threadedly connected with first threaded connector pipes 10. The first threaded connector 10 is a prior art, that is, a quick straight connector. The structure of the first threaded connector 10 is shown in Figure 2 .

[0041] The first threaded connector pipe 10 penetrates through the air inlet pressing plate 9, the outer surface of the first threaded connector pipe 10 is provided with an external thread, the corresponding through hole is provided with an internal thread, and the first threaded connector pipe 10 is threadedly connected with the corresponding through hole.

[0042] The first threaded joint pipe 10 has one end in the cavity of the ball and the other end outside the cavity of the ball. The aforementioned three one-way valves 8 are threadedly connected to the outer threads of the end of the first threaded joint pipe 10 outside the cavity of the ball. At this point, the first threaded joint pipe 10 can communicate with the corresponding one-way valve 8, the second quick joint 7 and the aforementioned corresponding inlet pipe 6. The hydrogen in the inlet pipe 6 can enter the cavity of the ball through the second quick joint 7, the one-way valve 8 and the first threaded joint pipe 10 on the gas inlet pressing plate 9. Conversely, due to the reverse blocking feature of the one-way valve 8, the hydrogen in the cavity of the ball cannot enter the inlet pipe 6 through the first threaded joint pipe 10 on the gas inlet pressing plate 9, the one-way valve 8 in the reverse direction.

[0043] Each first threaded joint pipe 10 is threadedly connected with two locking nuts, which are respectively located on the opposite sides of the gas inlet pressing plate 9 and are respectively in abutment with the corresponding surfaces of the gas inlet pressing plate 9, for locking the first threaded joint pipe 10 on the gas inlet pressing plate 9.

[0044] It also includes a plurality of guide pipes 12, which are copper pipes, and the guide pipes 12 are arranged one-to-one with the first threaded joint pipes 10. In this embodiment, there are three guide pipes 12, and the three guide pipes 12 are all elbow pipes, and the guide pipes 12 are L-shaped as a whole. Taking one guide pipe 12, the guide pipe 12 includes a connecting section and a gas outlet section.

[0045] The end of the connecting section away from the gas outlet section is connected with a quick joint buckle nut 17. The quick joint nut belongs to the joint of the prior art, which can be but is not limited to the xbh-1003 type 304 stainless steel sleeve joint.

[0046] See Figure 2The connection mode of the guide pipe 12 and the quick coupling buckle nut 17 is that one end of the guide pipe is inserted into one end of the first threaded joint pipe 10 in the spherical cavity, the quick coupling buckle nut 17 comprises a ring-shaped buckle 171, a ring-shaped clasp 172 and a quick coupling nut 173, the buckle 171 is sleeved on the connecting section of the guide pipe 12, the clasp 172 is also sleeved on the connecting section of the guide pipe 12, the quick coupling nut 173 is threadedly connected to one end of the first threaded joint pipe 10 in the spherical cavity, and the quick coupling nut 173 is also sleeved on the connecting section of the guide pipe 12. When the quick coupling nut 173 is threadedly connected to one end of the first threaded joint pipe 10 in the cavity, the quick coupling nut 173 pushes the clasp 172 to move along the connecting section of the guide pipe 12 to the buckle 171, the clasp 172 is inserted into the inner ring of the buckle 171, the quick coupling nut 173 forces the buckle 171 to move to the inner ring of the first threaded joint pipe 10 through the clasp 172, the buckle 171 completely enters the inner ring of the first threaded joint pipe 10, and the buckle 171 is deformed and then shrinks inward, so that the buckle 171 tightly clamps the corresponding end of the guide pipe 12 on the quick coupling joint. Through the friction between the buckle 171 and the guide pipe 12, the buckle 171 is forced to no longer move relative to the guide pipe 12, so that the connecting section of the guide pipe 12 cannot fall off the connecting joint.

[0047] The end of the gas outlet section of the guide pipe 12 away from the connecting section is located at the top of the spherical cavity. The guide pipe 12 is in communication with the aforementioned one-way valve 8 and the aforementioned inlet pipe 6 through the first threaded joint pipe 10, and the hydrogen in the aforementioned inlet pipe 6 enters the spherical cavity through the one-way valve 8, the first threaded joint pipe 10 and the guide pipe 12. Because the hydrogen flows out from the end of the gas outlet section away from the connecting section, and the end of the gas outlet section away from the connecting section is located at the top of the spherical cavity, the hydrogen gathers at the top of the spherical cavity because the density of the hydrogen is much smaller than that of the air, and the gathered hydrogen presses the air in the spherical cavity downward.

[0048] In addition to the three through holes, there are two through holes, one of which is threadedly connected with the ignition rod 11 and is referred to as an ignition rod connecting hole. Specifically, the ignition rod 11 is externally provided with external threads, the inner wall of the ignition rod connecting hole is provided with internal threads, and the ignition rod 11 is threadedly connected with the ignition rod connecting hole. Two locking nuts are also threadedly connected to the external threads of the ignition rod, and the two locking nuts are the same as the two clamping nuts on the first threaded joint pipe 10 and are clamped on the opposite two sides of the air inlet pressing plate 9, so as to lock the ignition rod 11 on the air inlet pressing plate 9.

[0049] The ignition end of the ignition rod 11 is in the cavity of the sphere, and the electrified end is outside the cavity of the sphere. The ignition rod 11 is of the prior art and can generate sparks or open flames by electrification to ignite the mixed gas of air and hydrogen in the sphere and cause an explosion. The ignition rod 11 is electrically connected with the control device, and the control device controls the ignition rod 11 to generate sparks or open flames by electrification.

[0050] One of the remaining five through holes is screwed with a second threaded joint pipe 13. The second threaded joint pipe 13 is completely identical to the first threaded joint pipe 10, and the connection mode is also identical to the first threaded joint pipe 10, which will not be repeated here.

[0051] One end of the second threaded joint pipe 13 in the cavity of the sphere is provided with an air outlet pipe 14. The air outlet pipe 14 is also a bent pipe and has an overall L shape. The connection mode of the air outlet pipe 14 with the second threaded joint pipe 13 is the same as that of the guide pipe 12 with the first threaded joint pipe 10, which will not be repeated here. The air outlet pipe 14 includes an air inlet section and a connecting section. The air inlet section of the air outlet pipe 14, which is away from the connecting section, is located at the bottom of the cavity of the sphere.

[0052] One end of the second threaded joint pipe 13 in the cavity of the sphere is provided with an air outlet pipe 14. The air outlet pipe 14 is also a bent pipe and has an overall L shape. The connection mode of the air outlet pipe 14 with the second threaded joint pipe 13 is the same as that of the guide pipe 12 with the first threaded joint pipe 10, which will not be repeated here. The air outlet pipe 14 includes an air inlet section and a connecting section. The air inlet section of the air outlet pipe 14, which is away from the connecting section, is located at the bottom of the cavity of the sphere.

[0053] The use process of the device is as follows:

[0054] First, the installation personnel complete the assembly of the device, and install the sheet at the shock wave outlet of the sphere.

[0055] The user sets the ratio of hydrogen and air in the cavity of the sphere in the control device. It is assumed that the ratio of hydrogen and air is 1:K. Since the volume of the cavity of the sphere is determined and known after the sphere is made, it is assumed that the volume of the cavity of the sphere is M. Therefore, according to the set ratio, the control device can calculate that the volume of hydrogen to be introduced into the cavity of the sphere is M / (1+K).

[0056] After setting the ratio of hydrogen and air in the sphere, the control device controls the first electromagnetic valve 3 and the second electromagnetic valve 16 to open. Since the pressure in the hydrogen tank 1 is much greater than the air pressure in the sphere, the hydrogen in the hydrogen tank 1 will naturally pass through the flow meter 2, the first electromagnetic valve 3, the a end of the one-way multi-gas pipe 4, the b end, the c end and the d end of the one-way multi-gas pipe 4, the first quick connector 5 into the respective guide pipes 6, and then from the guide pipes 6 through the second quick connector 7, the one-way valve 8, the first threaded connector pipe 10 into the guide pipe 12, and finally the hydrogen enters the top of the inner cavity of the sphere from the guide pipe 12.

[0057] After the hydrogen enters the cavity of the sphere, it will gather at the top of the cavity of the sphere, expelling the air in the cavity of the sphere into the air outlet pipe 14, and the air will be discharged from the cavity through the air outlet pipe 14, the second threaded connector pipe 13, the exhaust pipe 15 and the second electromagnetic valve 16.

[0058] The control device continuously monitors the flow of the flow meter 2, and the control device can approximately calculate the volume of hydrogen entering the cavity of the sphere according to the monitored flow multiplied by the ventilation time.

[0059] When the control device monitors that the calculated volume of hydrogen reaches M / (1+K), the control device controls the first electromagnetic valve 3 and the second electromagnetic valve 16 to close.

[0060] Finally, the test personnel send an ignition signal to the ignition rod 11 through the control device, and the ignition rod 11 generates a spark or an open flame after receiving the ignition signal, and the mixed gas of hydrogen and air in the cavity of the sphere explodes, the explosion wave breaks through the thin plate, and a demonstration of the explosion of the mixed gas of hydrogen and air is completed, which is used for teaching.

[0061] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. An atmospheric hydrogen relief tank gas inlet control device characterized by comprising: The hydrogen tank (1) is provided with a flowmeter (2) connected to the outlet of the hydrogen tank (1), and the flowmeter (2) is connected to a first electromagnetic valve (3) at the end away from the hydrogen tank (1); The gas inlet pressing plate (9) is installed on the ball and seals the gas inlet of the ball; The gas inlet pressing plate (9) is connected to at least one guide pipe (12), one end of the guide pipe (12) is connected to the gas inlet pressing plate (9), and the other end is located at the top of the ball cavity; the first electromagnetic valve (3) is communicated with the guide pipe (12) through a pipeline assembly; The gas inlet pressing plate (9) is also connected to a gas outlet pipe (14), one end of the gas outlet pipe (14) is connected to the gas inlet pressing plate (9), and the other end is located at the bottom of the ball cavity; the gas inlet pressing plate (9) is connected to an exhaust pipe (15), the exhaust pipe (15) is located outside the ball, the exhaust pipe (15) is communicated with the gas outlet pipe (14), and the exhaust pipe (15) is connected to a second electromagnetic valve (16); The gas inlet pressing plate (9) is connected to an ignition rod (11), and the ignition end of the ignition rod (11) is located in the ball; The control device is electrically connected to the flowmeter (2), the first electromagnetic valve (3), the second electromagnetic valve (16) and the ignition rod (11).

2. The atmospheric hydrogen relief tank intake control device according to claim 1, characterized by The pipeline assembly comprises: A one-to-many gas pipe (4) is connected to the first electromagnetic valve (3); the end of the one-to-many gas pipe (4) connected to the first electromagnetic valve (3) is the a end; A plurality of first quick connectors (5) are connected to the other end of the one-to-many gas pipe (4) except the a end; A plurality of guide pipes (6) are provided corresponding to the first quick connectors (5); one end of the guide pipe (6) is connected to the corresponding first quick connector (5); a plurality of guide pipes (12) are also provided, and the guide pipes (12) are provided corresponding to the guide pipes (6), and the guide pipes (12) can be communicated with the guide pipes (6); A plurality of second quick connectors (7) are provided corresponding to the guide pipes (6); the other end of the guide pipe (6) is connected to the corresponding second quick connector (7).

3. The atmospheric hydrogen relief tank intake control device according to claim 1, characterized by The gas inlet pressing plate (9) is connected to a plurality of one-way valves (8), the one-way valves (8) are provided corresponding to the second quick connectors (7), one end of the one-way valves (8) can be communicated with the corresponding second quick connector (7), and the other end can be communicated with the corresponding guide pipe (12).

4. The atmospheric hydrogen relief tank gas inlet control device according to claim 3, characterized by The first electromagnetic valve (3) and the second electromagnetic valve (16) are both normally closed electromagnetic valves.

5. The atmospheric hydrogen relief tank gas inlet control device according to claim 2, characterized by The one-to-many gas pipe (4) is a one-to-three gas pipe.

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