Hydrogen diffusing device for hydrogen refueling station vehicle

Abstract

The invention relates to the field of hydrogen diffusion, and provides a hydrogen diffusion device for a hydrogen refueling station vehicle, which comprises a header pipe, a gas leakage assembly, a recovery assembly, a diffusion assembly, a recovery valve and a diffusion valve, the gas releasing assembly comprises a plurality of gas releasing units, and the gas releasing units are connected with the main pipe and used for communicating with a hydrogen discharging opening of the hydrogenation vehicle and guiding hydrogen in the hydrogenation vehicle into the main pipe; the recovery assembly comprises a recovery pipeline as well as a buffer tank, a first valve, a compressor and a hydrogen storage tank which are sequentially arranged on the recovery pipeline; the diffusing assembly comprises a first diffusing pipeline and a diffusing tower, and the diffusing tower is connected with the main pipe through the first diffusing pipeline. Hydrogen is guided into the header pipe through the gas releasing assembly, then the recycling valve and the releasing valve are regulated and controlled, so that the hydrogen in the header pipe flows into the recycling pipeline and / or the first releasing pipeline, then the hydrogen releasing device for the hydrogen refueling station vehicle can flexibly switch the working modes according to actual requirements, and the problems that the hydrogen releasing risk is high, and the safety is high are solved. And resource waste is caused.

Description

Technical Field

[0001] The present application relates to the field of hydrogen dispersal, and in particular to a hydrogen dispersal device for vehicles at a hydrogen refueling station. Background Art

[0002] A hydrogen refueling vehicle may need to discharge hydrogen in the event of over-refueling, maintenance or other emergencies.

[0003] Currently, the most common way to release hydrogen is to release the hydrogen inside the hydrogen refueling vehicle into the air through a release pipe or a release tower.

[0004] However, if there are multiple hydrogen refueling vehicles that need to release hydrogen at the same time, a large amount of hydrogen will be released into the air in a short period of time. Hydrogen is a flammable gas, and if a large amount of hydrogen is released in a short period of time, it may cause a safety accident. In addition, hydrogen is an energy gas, and direct large-scale emission will also cause a waste of resources. Summary of the invention

[0005] In order to solve the problem that hydrogen release is highly dangerous and causes waste of resources, the present application provides a hydrogen release device for vehicles at a hydrogen refueling station.

[0006] The present application provides a hydrogen dispersing device for a hydrogen refueling station vehicle using the following technical solution: A hydrogen dispersing device for a hydrogen filling station vehicle, comprising: General Manager.

[0007] The gas release component includes a plurality of gas release units, wherein the gas release units are connected to the main pipe, and the gas release units are used to communicate with the hydrogen discharge port of the hydrogen refueling vehicle and introduce the hydrogen in the hydrogen refueling vehicle into the main pipe.

[0008] The recovery component comprises a recovery pipeline and a buffer tank, a first valve, a compressor and a hydrogen storage tank which are sequentially arranged on the recovery pipeline.

[0009] The venting assembly comprises a first venting pipeline and a venting tower, wherein the venting tower is connected to the main pipe through the first venting pipeline.

[0010] A recovery valve is arranged on the recovery pipeline and located between the buffer tank and the main pipe.

[0011] The relief valve is arranged on the first relief pipeline.

[0012] By adopting the above technical solution, the hydrogen dispersing device for vehicles in the hydrogen refueling station can achieve the safe dispersal and reuse of hydrogen in multiple hydrogen refueling vehicles at the same time. Specifically: The gas leakage component can be connected to the hydrogen discharge ports of multiple hydrogen refueling vehicles at the same time through multiple gas leakage units, and can quickly and effectively introduce the hydrogen in the hydrogen refueling vehicles into the main pipe, thereby improving the hydrogen collection efficiency.

[0013] The design of the buffer tank, first valve, compressor and hydrogen storage tank in the recovery component ensures the safety and efficiency of the hydrogen recovery process, and avoids hydrogen waste by pressurizing the recovered hydrogen for storage.

[0014] The first venting pipeline and venting tower in the venting assembly can safely discharge excess hydrogen into the atmosphere when necessary, thereby preventing potential safety hazards caused by system overpressure.

[0015] The setting of the recovery valve and the release valve allows the system to flexibly switch between hydrogen recovery mode, release mode or a mode in which hydrogen recovery and release are performed simultaneously according to actual needs, thereby improving the adaptability and reliability of the system.

[0016] Preferably, the air release unit comprises a pressure relief pipeline and an opening and closing unit, a pressure detection unit, a safety valve and a first one-way valve arranged on the pressure relief pipeline.

[0017] The opening and closing unit is used to close or open the pressure relief pipeline.

[0018] The pressure detection unit is used to detect the hydrogen pressure in the pressure relief pipeline.

[0019] The pressure relief pipeline has a vehicle connection interface for connecting to a hydrogen discharge port of the hydrogen refueling vehicle.

[0020] By adopting the above technical scheme, the opening and closing unit can realize the closure or conduction of the pressure relief pipeline, and effectively control the safety of the hydrogen emission process; the pressure detection unit can monitor the hydrogen pressure in the pressure relief pipeline in real time, ensure that the pressure is stable and controllable during the hydrogen emission process, and prevent safety hazards caused by excessive pressure; the safety valve can automatically open under overpressure conditions to further ensure the safety of the system; the first one-way valve ensures that hydrogen can only flow from the hydrogen refueling vehicle to the main pipe, avoiding the occurrence of backflow, and improving the reliability and safety of the system.

[0021] Preferably, the air release unit further comprises a telescopic tube and a quick-plug conversion joint, the quick-plug conversion joint is connected to the vehicle connection interface via the telescopic tube, and the quick-plug conversion plug is used to connect to the hydrogen discharge port of the hydrogen refueling vehicle.

[0022] By adopting the above technical solution, the quick-plug adapter is connected to the vehicle interface through the telescopic tube, and the quick-plug adapter is used to connect the hydrogen discharge port of the hydrogen refueling vehicle. This design can achieve quick connection and disconnection, improve operating efficiency, and the design of the telescopic tube enables the equipment to be flexibly used in different positions, increasing the adaptability and reliability of the device.

[0023] Preferably, the vent assembly also includes a second vent pipeline and a second valve, one end of the second vent pipeline is connected to the buffer tank, and the other end is connected to the part of the first vent pipeline between the vent valve and the vent tower, and the second valve is arranged on the second vent pipeline.

[0024] By adopting the above technical solution, the hydrogen in the buffer tank can enter the first release pipeline and finally be released through the release tower.

[0025] Preferably, the vehicle hydrogen dispersing device of the hydrogen refueling station further includes a first pressure sensor and a second pressure sensor.

[0026] The first pressure sensor is arranged on the main pipe.

[0027] The second pressure sensor is arranged in the first relief pipeline and is located at a side of a connection point between the second relief pipeline and the first relief pipeline close to the relief tower.

[0028] By adopting the above technical solution, the first pressure sensor is arranged on the main pipe, which can monitor the hydrogen pressure in the main pipe in real time, so as to adjust the opening of the recovery valve and the release valve according to the hydrogen pressure value in the main pipe. The second pressure sensor is arranged on the first release pipeline, and is located on the side of the connection point between the second release pipeline and the first release pipeline close to the release tower, which can accurately monitor the pressure change of hydrogen during the release process, adjust the release operation in time, and prevent safety accidents caused by overpressure. These two measures jointly improve the safety and reliability of the entire system.

[0029] Preferably, the emission tower comprises: Base.

[0030] The tower body comprises a first pipe, a second pipe and a third pipe which are coaxially arranged, wherein one end of the first pipe is connected to the base, and one end of the second pipe is inserted into the inner side of one end of the first pipe away from the base and is slidably connected to the first pipe.

[0031] A portion of the third pipe is inserted into the other end of the second pipe and is slidably connected to the second pipe.

[0032] The first adjusting unit is connected to the tower body and is used to drive the third pipeline to slide relative to the base, thereby changing the height of the tower body.

[0033] By adopting the above technical solution, the design of the discharge tower can achieve flexible adjustment of height, ensuring that hydrogen can be discharged at a suitable height. Specifically, the base provides a stable support foundation, and the multi-stage telescopic design of the first pipeline, the second pipeline and the third pipeline makes the tower height adjustable to meet different discharge height requirements. The addition of the first adjustment unit further enhances the convenience and accuracy of height adjustment, ensuring the safety and effectiveness of the discharge process. In addition, when the discharge work is not in progress, the tower body can be retracted to reduce space occupancy.

[0034] Preferably, the third pipeline comprises a diverging section, a telescopic section and an air intake section which are connected in sequence; The air intake section is arranged on the inner side of the first pipeline, and an air intake joint communicating with the interior of the air intake section is arranged on the air intake section. The air intake joint passes through the first pipeline and is used to be connected with the first emission pipeline.

[0035] By adopting the above technical solution, the third pipeline of the discharge tower is designed to include a discharge section, a telescopic section and an air intake section connected in sequence. The air intake section is connected to the first discharge pipeline through an air intake joint, so that the hydrogen in the first discharge pipeline can be directly discharged into the third pipeline for discharge, thereby avoiding hydrogen leakage. The telescopic section of the third pipeline can adapt to the height change of the tower body, thereby ensuring the stability of hydrogen discharge.

[0036] Preferably, a diffusion hole is provided on the side wall of the end of the third pipe away from the base.

[0037] By adopting the above solution, the hydrogen in the third pipe can be released through the release hole and the opening at one end of the third pipe away from the base at the same time, and the flow direction of the hydrogen released from the release hole is different from that of the hydrogen released from the end opening, thereby avoiding excessive concentration of hydrogen released in a local area.

[0038] Preferably, the emission tower further comprises a rain cover and a second adjustment unit.

[0039] The rain cover is arranged on a side of the third pipe away from the base, and a sealing portion is provided on a side of the rain cover close to the third pipe, and the sealing portion is used to seal an opening at one end of the third pipe away from the base and the emitting hole.

[0040] The second adjustment unit is connected to the rain cover and is used to drive the rain cover to move closer to or away from the third pipe.

[0041] By adopting the above technical solution, the rain cover can effectively prevent rainwater or other impurities from entering the interior of the discharge tower, avoiding affecting the safety and efficiency of the discharge process. The cover portion can block the end opening of the third pipe away from the base and the discharge hole, ensuring the sealing of the discharge tower in the non-discharge state, and further reducing the risk of debris entering the discharge tower. The second adjustment unit enables the rain cover to automatically adjust its position as needed, thereby driving the rain cover to block or open the end opening of the third pipe away from the base and the discharge hole.

[0042] Preferably, the second adjustment unit is connected to the rain cover via an elastic member, and the elastic member can be deformed along the axial direction of the third pipe.

[0043] By adopting the above technical solution, when the air pressure in the third pipe is relatively high, the air pressure can directly push the rain cover open and release the pressure, thereby avoiding safety accidents caused by the untimely opening of the rain cover.

[0044] The hydrogen dispersing device for hydrogen refueling station vehicles of the present application guides the hydrogen in the hydrogen refueling vehicle into the main pipe through the air release component, and then controls the recovery valve and the dispersing valve to allow the hydrogen in the main pipe to flow into the recovery pipeline and / or the first dispersing pipeline, so that the hydrogen dispersing device for hydrogen refueling station vehicles can flexibly switch between the hydrogen recovery mode, the dispersing mode, or the mode in which hydrogen recovery and dispersing are performed simultaneously according to actual needs, thereby improving the adaptability and reliability of the system and solving the problems of high danger of hydrogen dispersing and waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the structure of the hydrogen dispersing device for vehicles in the hydrogen refueling station provided in this application.

[0046] Figure 2 It is a structural schematic diagram of a discharge tower of a hydrogen discharge device for vehicles in a hydrogen refueling station provided in the present application.

[0047] Figure 3 It is a front view of the release tower of the hydrogen release device for vehicles in the hydrogen refueling station provided in the present application.

[0048] Description of reference numerals: 1. Main pipe; 11. First pressure sensor; 2. Air release assembly; 21. Pressure relief pipeline; 211. Vehicle connection interface; 22. Opening and closing unit; 23. Pressure detection unit; 24. Safety valve; 25. First check valve; 3. Recovery component; 31. Recovery pipeline; 32. Buffer tank; 33. First valve; 34. Compressor; 35. Hydrogen storage tank; 36. Fourth one-way valve; 4. Discharge assembly; 41. First discharge pipeline; 42. Discharge tower; 421. Base; 422. First pipeline; 423. Second pipeline; 424. Third pipeline; 4241. Discharge section; 4242. Telescopic section; 4243. Intake section; 4244. Intake joint; 4245. Discharge hole; 425. First cylinder; 426. Second cylinder; 427. Rain cover; 4271. Covering part; 428. Second regulating unit; 4281. Third cylinder; 4282. Connecting frame; 429. Elastic member; 43. Second discharge pipeline; 44. Second valve; 45. Second pressure sensor; 46. Second one-way valve; 47. Third one-way valve; 5. Recovery valve; 6. Release valve; 200. Hydrogen refueling vehicle. DETAILED DESCRIPTION

[0049] The following is combined with Figures 1 to 3 This application is described in further detail.

[0050] like Figure 1 As shown, an embodiment of the present application discloses a hydrogen dispersing device for a hydrogen refueling station vehicle, comprising: a main pipe 1, a gas release component 2, a recovery component 3, a dispersing component 4, a recovery valve 5 and a dispersing valve 6.

[0051] The gas release assembly 2 includes a plurality of gas release units, which are connected to the main pipe 1 . The gas release units are used to communicate with the hydrogen discharge port of the hydrogen refueling vehicle 200 and introduce the hydrogen in the hydrogen refueling vehicle 200 into the main pipe 1 .

[0052] The recovery component 3 includes a recovery pipeline 31 and a buffer tank 32 , a first valve 33 , a compressor 34 and a hydrogen storage tank 35 which are sequentially arranged on the recovery pipeline 31 .

[0053] The venting assembly 4 includes a first venting pipeline 41 and a venting tower 42 . The venting tower 42 is connected to the main pipe 1 through the first venting pipeline 41 .

[0054] The recovery valve 5 is disposed on the recovery pipeline 31 and is located between the buffer tank 32 and the main pipe 1 .

[0055] The relief valve 6 is arranged on the first relief pipeline 41 .

[0056] Specifically, the air release unit includes a pressure relief pipeline 21 , and an opening and closing unit 22 , a pressure detection unit 23 , a safety valve 24 and a first one-way valve 25 which are arranged on the pressure relief pipeline 21 .

[0057] The pressure relief pipeline 21 is connected to the main pipe 1. The pressure relief pipeline 21 has a vehicle connection interface 211 for connecting to the hydrogen discharge port of the hydrogenation vehicle 200. When the hydrogen in the hydrogenation vehicle 200 needs to be released, the vehicle connection interface 211 only needs to be connected to the hydrogen discharge port of the hydrogenation vehicle 200, so that the hydrogen discharge port can be connected to the pressure relief pipeline 21.

[0058] The pressure detection unit 23 may include a pressure gauge and a pressure sensor, both of which are used to detect the hydrogen pressure in the pressure relief pipeline 21. The staff can understand the hydrogen pressure in the pressure relief pipeline 21 according to the indication of the pressure gauge.

[0059] The opening and closing unit 22 may include one or more needle valves, and the needle valves are manipulated to close the pressure relief pipeline 21 or to open the pressure relief pipeline 21. When the pressure relief pipeline 21 is open, the hydrogen in the pressure relief pipeline 21 can enter the main pipe 1.

[0060] The safety valve 24 can automatically open and release pressure in the event of overpressure, further ensuring system safety.

[0061] The first one-way valve 25 is used to ensure that hydrogen can only flow from the hydrogen refueling vehicle 200 to the main pipe 1 to avoid the occurrence of backflow.

[0062] Furthermore, the deflation unit also includes a telescopic tube and a quick-plug conversion joint, the quick-plug conversion joint is connected to the vehicle connection interface 211 through the telescopic tube, and the quick-plug conversion plug is used to connect the hydrogen discharge port of the hydrogenation vehicle 200. The quick-plug conversion plug can be quickly connected and separated from the hydrogen discharge port of the hydrogenation vehicle 200, thereby improving efficiency. The setting of the telescopic tube allows the quick-plug conversion plug to move freely, so that the quick-plug conversion plug can quickly respond to and connect the hydrogenation vehicles 200 parked at different positions and the hydrogen discharge ports set at different positions of the hydrogenation vehicle 200.

[0063] A first pressure sensor 11 is provided on the main pipe 1 , and the first pressure sensor 11 is used to detect the hydrogen pressure in the main pipe 1 , so as to determine whether to introduce the hydrogen into the recovery pipeline 31 and / or the first release pipeline 41 according to the pressure in the main pipe 1 .

[0064] For example, when the gas pressure in the main pipe 1 is relatively high, the recovery valve 5 and the release valve 6 can be opened at the same time, and the hydrogen in the main pipe 1 enters the recovery pipeline 31 and the first release pipeline 41 respectively, thereby quickly reducing the pressure in the main pipe 1. In addition, since part of the hydrogen in the main pipe 1 enters the recovery pipeline 31, the amount of hydrogen entering the release tower 42 through the first release pipeline 41 becomes less, thereby avoiding the release of a large amount of hydrogen in a short period of time to cause a safety accident.

[0065] When the air pressure in the recovery pipeline 31 is greater than the internal pressure of the buffer tank 32, hydrogen can enter the buffer tank 32. As the air pressure in the buffer tank 32 gradually increases, when the air pressure increases to a level greater than the air pressure in the recovery pipeline 31, the hydrogen in the recovery pipeline 31 cannot spontaneously enter the buffer tank 32. At this time, the first valve 33 can be opened, and the hydrogen in the buffer tank 32 is further pressurized by the compressor 34 and then introduced into the hydrogen storage tank 35 for recovery. At the same time, after the hydrogen in the buffer tank 32 is discharged, the buffer tank 32 can collect the hydrogen in the recovery pipeline 31 again.

[0066] In addition, the buffer tank 32 and the hydrogen storage tank 35 are both provided with concentration sensors to detect the hydrogen concentration inside each.

[0067] The relief assembly 4 also includes a second relief pipeline 43 and a second valve 44. One end of the second relief pipeline 43 is connected to the buffer tank 32, and the other end is connected to the first relief pipeline 41 between the relief valve 6 and the relief tower 42. The second valve 44 is arranged on the second relief pipeline 43.

[0068] By providing the second venting pipeline 43 and the second valve 44 , the hydrogen in the buffer tank 32 can flow into the first venting pipeline 41 through the second venting pipeline 43 and finally be vented through the venting tower 42 .

[0069] For example, when the amount of hydrogen in the buffer tank 32 is low for a long time and there is no value in pressurizing and recovering it, the hydrogen in the buffer tank 32 can be released according to actual needs.

[0070] For another example, when the hydrogen in the hydrogen storage tank 35 reaches the capacity limit of the hydrogen storage tank 35, but the hydrogen storage tank 35 is not replaced in time, the hydrogen in the buffer tank 32 cannot be pressurized and introduced into the hydrogen storage tank 35. At this time, in order to avoid excessive pressure in the buffer tank 32, the second valve 44 can be opened to discharge the hydrogen in the buffer tank 32 into the first release pipeline 41 and finally release it.

[0071] The hydrogen in the buffer tank 32 needs to be released at an appropriate time. A second pressure sensor 45 can be provided on the first release pipeline 41, and the second pressure sensor 45 is located on the side of the connection point between the second release pipeline 43 and the first release pipeline 41 close to the release tower 42. The second pressure sensor 45 is used to detect the air pressure in the first release pipeline 41 in the area where it is located. When the air pressure value detected by the second pressure sensor 45 is large, it is not appropriate to release the hydrogen in the buffer tank 32 into the first release pipeline 41 to avoid a safety accident caused by the release of a large amount of hydrogen in a short time by the release tower 42. The hydrogen in the buffer tank 32 should be released when the air pressure value detected by the second pressure sensor 45 is small.

[0072] In other embodiments, the second venting pipeline 43 can be used to connect the buffer tank 32 and the venting tower 42, so that the second venting pipeline 43 becomes a backup venting pipeline, and the hydrogen in the main pipe 1 can be vented even if the first venting pipeline 41 fails.

[0073] In addition, a second one-way valve 46 is provided on the second release pipeline 43, a third one-way valve 47 is provided on the first release pipeline 41, and a fourth one-way valve 36 is provided on the recovery pipeline 31. The second one-way valve 46, the third one-way valve 47 and the fourth one-way valve 36 are all used to prevent hydrogen from flowing back in their respective corresponding pipelines.

[0074] like Figure 2 and Figure 3 As shown, in some embodiments, the discharge tower 42 includes: a base 421, a tower body and a first adjustment unit. The tower body includes a first pipe 422, a second pipe 423 and a third pipe 424 arranged coaxially, one end of the first pipe 422 is connected to the base 421, one end of the second pipe 423 is inserted into the inner side of the end of the first pipe 422 away from the base 421, and is slidably connected to the first pipe 422; the third pipe 424 is partially inserted into the other end of the second pipe 423 and is slidably connected to the second pipe 423; the first adjustment unit is connected to the tower body, and is used to drive the third pipe 424 to slide relative to the base 421, thereby changing the height of the tower body.

[0075] Specifically, the first pipe 422, the second pipe 423 and the third pipe 424 are all arranged vertically, and the first pipe 422 is arranged on the base 421. The connection strength between the outer wall of the first pipe 422 and the base 421 can be increased by setting reinforcing ribs to prevent the first pipe 422 from tilting.

[0076] The first regulating unit may include a first cylinder 425 and a second cylinder 426, both of which are arranged along the axis direction of the third pipe 424. The cylinder body of the first cylinder 425 is connected to the first pipe 422 or the base 421, and the piston is connected to the second pipe 423. The cylinder body of the second cylinder 426 is connected to the second pipe 423, and the piston is connected to the third pipe 424. Through the expansion and contraction of the first cylinder 425 and the second cylinder 426, the height of the tower body can be changed, so that hydrogen can be released at a suitable height, thereby improving the safety of the release.

[0077] Furthermore, the third pipeline 424 includes a diverging section 4241, a telescopic section 4242 and an air intake section 4243 which are connected in sequence.

[0078] The air inlet section 4243 is arranged inside the first pipe 422 and connected to the base 421. The air inlet section 4243 is provided with an air inlet joint 4244 communicating with the inside thereof. The air inlet joint 4244 penetrates the first pipe 422 and is used to connect with the first release pipeline 41. After the hydrogen in the first release pipeline 41 enters the air inlet section 4243 through the air inlet joint 4244, it flows through the telescopic section 4242 and the release section 4241 in sequence, and finally releases to the outside from the top of the release section 4241.

[0079] Compared with connecting the first release pipeline 41 with the inside of the first pipeline 422, connecting the first release pipeline 41 with the third pipeline 424 can prevent hydrogen from leaking from the gaps between the first pipeline 422, the second pipeline 423 and the third pipeline 424, thereby avoiding safety accidents caused by the hydrogen release height being too low.

[0080] When the height of the tower body changes, the telescopic section 4242 of the third pipe 424 can be telescoped to adapt to the movement of the diverging section 4241 .

[0081] In some embodiments, a discharge hole 4245 is provided on the side wall of the end of the third pipe 424 away from the base 421, so that both the top opening of the third pipe 424 and the discharge hole 4245 can discharge hydrogen, thereby improving the discharge efficiency.

[0082] In addition, the flow direction of the hydrogen flowing out of the release hole 4245 is different from the flow direction of the hydrogen flowing out of the top opening of the third pipe 424, so that the hydrogen is evenly released in different directions to prevent excessive concentration of released hydrogen in a local area from causing safety accidents.

[0083] like Figure 2 and Figure 3 As shown, in some embodiments, the discharge tower 42 also includes a rain cover 427 and a second adjustment unit 428.

[0084] The rain cover 427 is arranged on a side of the third pipe 424 away from the base 421. The second regulating unit 428 includes a third cylinder 4281 and a connecting frame 4282. The third cylinder 4281 is arranged along the axial direction of the third pipe 424. The cylinder body of the third cylinder 4281 is connected to the discharge section 4241 of the third pipe 424. The piston of the third cylinder 4281 is connected to the rain cover 427 through the connecting frame 4282. The third cylinder 4281 can drive the rain cover 427 to move closer to or away from the third pipe 424 by telescoping.

[0085] When hydrogen is released, the rain cover 427 is driven away from the third pipeline 424 so that there is enough space for hydrogen to be released.

[0086] The rain cover 427 has a sealing portion 4271 on one side close to the third pipe 424. When the rain cover 427 gradually approaches the third pipe 424, the sealing portion 4271 can be sleeved on the outside of the third pipe 424 and seal the opening at one end of the third pipe 424 away from the base 421 and the venting hole 4245, thereby preventing external debris from entering the third pipe 424.

[0087] Furthermore, the second adjustment unit 428 is connected to the rain cover 427 via an elastic member 429, and the elastic member 429 can be deformed along the axial direction of the third pipe 424. For example, the elastic member 429 can be a spring arranged along the axial direction of the third pipe 424, one end of the spring is connected to the rain cover 427, and the other end is connected to the connecting frame 4282. The arrangement of the spring allows the sealing portion 4271 to be sleeved on the outer side of the third pipe 424, if the air pressure in the third pipe 424 increases abnormally, the air pressure can directly push the rain cover 427 away from the third pipe 424 to release the pressure, thereby preventing the pressure in the third pipe 424 from being released in time due to the failure of the third cylinder 4281 to drive the rain cover 427 to move in time.

Claims

1. A hydrogen dispersing device for a hydrogen refueling station vehicle, characterized in that: include: General Manager (1); A gas discharge assembly (2) comprising a plurality of gas discharge units, wherein the gas discharge units are connected to the main pipe (1), and the gas discharge units are used to communicate with the hydrogen discharge port of the hydrogen refueling vehicle (200) and to introduce the hydrogen in the hydrogen refueling vehicle (200) into the main pipe (1); A recovery assembly (3), comprising a recovery pipeline (31) and a buffer tank (32), a first valve (33), a compressor (34) and a hydrogen storage tank (35) which are sequentially arranged on the recovery pipeline (31); A venting assembly (4) comprising a first venting pipeline (41) and a venting tower (42), wherein the venting tower (42) is connected to the main pipe (1) via the first venting pipeline (41); A recovery valve (5) provided on the recovery pipeline (31) and located between the buffer tank (32) and the main pipe (1); A relief valve (6) is provided on the first relief pipeline (41).

2. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 1, characterized in that: The air release unit comprises a pressure relief pipeline (21), and an opening and closing unit (22), a pressure detection unit (23), a safety valve (24) and a first one-way valve (25) arranged on the pressure relief pipeline (21); The opening and closing unit (22) is used to close or open the pressure relief pipeline (21); The pressure detection unit (23) is used to detect the hydrogen pressure in the pressure relief pipeline (21); The pressure relief pipeline (21) has a vehicle connection interface (211) for connecting to a hydrogen discharge port of the hydrogen refueling vehicle (200).

3. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 2, characterized in that: The gas release unit further comprises a telescopic tube and a quick-plug conversion joint, the quick-plug conversion joint being connected to the vehicle connection interface (211) via the telescopic tube, and the quick-plug conversion plug being used to connect to the hydrogen discharge port of the hydrogen refueling vehicle (200).

4. The hydrogen dispersing device for a hydrogen refueling station vehicle according to claim 1, characterized in that: The relief assembly (4) further comprises a second relief pipeline (43) and a second valve (44); one end of the second relief pipeline (43) is in communication with the buffer tank (32), and the other end is in communication with a portion of the first relief pipeline (41) between the relief valve (6) and the relief tower (42); the second valve (44) is arranged on the second relief pipeline (43).

5. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 4, characterized in that: The hydrogen dispersing device for vehicles at the hydrogen refueling station further comprises a first pressure sensor (11) and a second pressure sensor (45); The first pressure sensor (11) is arranged on the main pipe (1); The second pressure sensor (45) is arranged on the first relief pipeline (41) and is located on a side of the connection point between the second relief pipeline (43) and the first relief pipeline (41) close to the relief tower (42).

6. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 1, characterized in that: The discharge tower (42) comprises: Base (421); The tower body comprises a first pipe (422), a second pipe (423) and a third pipe (424) which are coaxially arranged, one end of the first pipe (422) being connected to the base (421), and one end of the second pipe (423) being inserted into the inner side of an end of the first pipe (422) away from the base (421) and being slidably connected to the first pipe (422); A portion of the third pipe (424) is inserted into the other end of the second pipe (423) and is slidably connected to the second pipe (423); A first adjustment unit is connected to the tower body and is used to drive the third pipe (424) to slide relative to the base (421), thereby changing the height of the tower body.

7. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 6, characterized in that: The third pipeline (424) comprises a diffusion section (4241), a telescopic section (4242) and an air intake section (4243) which are connected in sequence; The air intake section (4243) is arranged on the inner side of the first pipe (422), and the air intake section (4243) is provided with an air intake joint (4244) which is in communication with the interior thereof; the air intake joint (4244) passes through the first pipe (422) and is used for connecting with the first emission pipeline (41).

8. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 6, characterized in that: A diffusion hole (4245) is provided on the side wall of the end of the third pipe (424) away from the base (421).

9. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 8, characterized in that: The emission tower (42) further includes a rain cover (427) and a second adjustment unit (428); The rain cover (427) is arranged on a side of the third pipe (424) away from the base (421); the side of the rain cover (427) close to the third pipe (424) has a sealing portion (4271); the sealing portion (4271) is used to seal an opening at one end of the third pipe (424) away from the base (421) and the emission hole (4245); The second adjustment unit (428) is connected to the rain cover (427) and is used to drive the rain cover (427) to move closer to or farther away from the third pipe (424).

10. The hydrogen dispersing device for vehicles in a hydrogen refueling station according to claim 9, characterized in that: The second adjustment unit (428) is connected to the rain cover (427) via an elastic member (429), and the elastic member (429) is capable of deforming along the axial direction of the third pipe (424).

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