A quick and safe purging line device and a control method thereof

Abstract

The technical scheme of the present application provides a kind of fast safe purging pipeline device and control method thereof, comprising: gas end equipment group;Purging pipeline, the purging pipeline includes main pipeline, exhaust pipeline and several gas collection cabinet components, the two ends of the exhaust pipeline are respectively communicated with the main pipeline and external air, one end of the main pipeline is connected with the gas end equipment group, several gas collection cabinet components are arranged on the main pipeline side by side, and sequentially away from the gas end equipment group, for sequentially switching and carrying out the supply of gas.The present application judges whether the hydrogen pressure of hydrogen storage tank and fuel cell stack end meets the current demand by setting pressure threshold and detection unit, greatly improves reliability and accuracy, in addition, the newly switched gas collection cabinet is intelligently purged by program control, and when purging reaches the preset number, gas delivery is carried out, to achieve the purpose of uninterrupted fuel cell test.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to a rapid and safe purging pipeline device. Background Technology

[0002] A fuel cell is a power generation device that directly converts the chemical energy in fuel and oxidant into electrical energy through an electrochemical reaction. During operation, it is normal for fuel cell systems to frequently replace the gas collector and purge the replaced piping.

[0003] Most existing purging devices are instrument purging devices. For example, Chinese invention patent application number 202010909293.0, entitled "Nitrogen Purging Device and Method of Using Nitrogen Purging Device," mainly focuses on the mirror purging of spectrometer detectors to protect them, which is completely different from the application field and scenario of this invention. Another Chinese invention patent application number 202010740174.7, entitled "Purging Device," mainly relies on multiple purging ports to form an air curtain, allowing gas to be sprayed out uniformly and stably from the purging ports. It is mainly used for purging and cleaning solar cells, which is completely different from the application field and scenario of this invention. Chinese invention patent application number 201911251811.8, entitled "Fuel Cell Purging Device and Control Method," mainly addresses the need to prevent frost and ice damage to the membrane electrode assembly caused by low temperatures. Therefore, purging must be performed when the fuel cell is shut down, stopping purging once the fuel cell reaches a predetermined humidity level to ensure a successful cold start. This invention is mainly used in vehicles, which is completely different from the application purpose and scenario of this invention.

[0004] Currently, in fuel cell systems, all pressure drops at the gas-consuming end are determined subjectively by humans. When the pressure at the gas-consuming end falls below the threshold, on-site testing personnel must manually replace the gas collector, followed by a coordinated pipeline purging operation involving a large number of personnel. This process is time-consuming and labor-intensive, requiring the opening and closing of numerous valves, and is prone to misoperation, leading to air contamination of the pipeline, significant damage to the gas-consuming equipment, and on-site safety issues. Therefore, there is an urgent need for a rapid and safe fuel cell pipeline purging device to address the shortcomings of existing fuel cell gas consumption processes, specifically the low efficiency of gas collector replacement, the discontinuity of testing, and the slow speed and low safety of manual on-site purging. Summary of the Invention

[0005] In view of this, it is necessary to provide a rapid and safe purging pipeline device and its control method to solve the technical problems of low efficiency in replacing the gas collection chamber, discontinuity in testing, slow speed and low safety of on-site manual purging during fuel cell gas use in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a rapid and safe pipeline purging device, comprising:

[0007] Gas-using equipment group;

[0008] The purging pipeline includes a main pipeline, an exhaust pipeline, and several gas collection chamber components. The two ends of the exhaust pipeline are connected to the main pipeline and the outside air, respectively. One end of the main pipeline is connected to the gas-consuming equipment group. Several gas collection chamber components are arranged side by side on the main pipeline and are sequentially moved away from the gas-consuming equipment group to switch and supply gas sequentially.

[0009] The control unit includes a controller and a control component. The control component is disposed on the gas-consuming equipment group and the purging pipeline. The controller is electrically connected to the control component and is used to control the air intake of the gas-consuming equipment group and the start of purging.

[0010] A detection unit is installed on the gas-consuming equipment group and the purging pipeline to detect the number of purging starts and the inlet pressure threshold of the gas-consuming equipment group. The detection unit is electrically connected to the controller.

[0011] Furthermore, the control component includes a first pressure reducing component, a first solenoid valve, a second solenoid valve, and several gas collection solenoid valves. The first pressure reducing component, the first solenoid valve, the second solenoid valve, and the several gas collection solenoid valves are all electrically connected to the controller. The first solenoid valve is disposed between the gas-consuming equipment group and the main pipeline and is used to control the gas intake of the gas-consuming equipment group. The second solenoid valve is disposed on the exhaust pipeline and is used to control the exhaust of the purging process. Several gas collection solenoid valves are connected in series on the main pipeline and are respectively associated with the gas collection components to control the gas input of the gas collection components into the main pipeline. The first pressure reducing component is disposed adjacent to the gas collection components on the main pipeline and is used to perform a first-stage pressure reduction on the input gas.

[0012] Furthermore, the gas collection chamber assembly includes a bypass pipeline, a first manual valve, and a gas storage chamber. One end of the first manual valve is located on the main pipeline and its position corresponds to the gas chamber solenoid valve. The other end of the first manual valve is connected to the bypass pipeline, and the other end of the bypass pipeline is connected to the gas storage chamber. The first manual valve controls the gas output from the gas storage chamber, and the gas chamber solenoid valve controls the connection between the gas and the main pipeline.

[0013] Furthermore, the detection unit includes a first pressure sensor and a solenoid valve microcontroller. The first pressure sensor is installed on the gas-consuming equipment group and is used to detect the gas supply pressure of the gas-consuming equipment group. The solenoid valve microcontroller is installed on the second solenoid valve and is used to detect the number of times the second solenoid valve is opened and closed. Both the first pressure sensor and the solenoid valve microcontroller are electrically connected to the controller. The first pressure sensor is located after the first pressure reducing component and is used to detect the gas pressure after the first pressure reduction.

[0014] Furthermore, the gas-consuming equipment group includes a hydrogen storage tank and a fuel cell stack. The hydrogen storage tank is connected in series on the main pipeline, and the fuel cell stack is connected in parallel on the main pipeline. A second pressure reducing component is provided between the fuel cell stack and the main pipeline for second pressure reducing of the input gas.

[0015] Furthermore, a sampling component is provided between the fuel cell stack and the second pressure reduction component for gas sampling and detection.

[0016] Furthermore, both the hydrogen storage tank and the fuel cell stack are equipped with a second pressure sensor and a safety relief valve for gas pressure monitoring and overpressure discharge.

[0017] Furthermore, both the hydrogen storage tank and the fuel cell stack are connected to the main pipeline via a second manual valve for manually controlling the opening and closing of the gas passage input.

[0018] Furthermore, a one-way valve and a flame arrester are provided at the tail end of the exhaust pipe.

[0019] The present invention also provides a control method for a rapid and safe purging pipeline device, which utilizes the rapid and safe purging pipeline device as described in any of the preceding claims, and includes the following steps:

[0020] S1. First, the main pipeline at the gas consumption end is cut off by the control unit, blocking the connection between the main pipeline and the gas consumption end equipment group. Then, the connection with the corresponding gas collection chamber component is opened, and the incoming gas is reduced to a suitable pressure.

[0021] S2. Then, the passage to the exhaust pipe is opened in sequence to form a purging flow path to the exhaust pipe. After the gas collection chamber component is connected to the main pipe, purging is carried out. After purging, the gas is discharged to the outside through the exhaust pipe after being treated.

[0022] S3. The purging time is controlled to be 6 seconds. The detection unit detects and feeds back to the control unit. Purging stops after the set number of times is reached.

[0023] S4, after purging stops, the control unit closes the passage of the exhaust pipe and opens the passage of the gas-consuming equipment group to supply gas to the gas-consuming equipment group;

[0024] S5. During the gas supply process, the detection unit detects the instantaneous pressure of the gas-consuming equipment group of the fuel cell. If the instantaneous value meets the requirements, the gas supply will be uninterrupted.

[0025] S6. When the detection unit detects that the pressure in the gas-consuming pipeline is less than the set pressure threshold, the control unit controls and blocks the passage between the gas-consuming equipment group and the main pipeline, stopping the gas delivery.

[0026] S7. After the pressure signal is transmitted to the control unit through the detection unit, the control unit controls the device to intelligently switch the air collection chamber components and simultaneously perform purging work, repeating the process from S1 to S7.

[0027] Compared with existing technologies, the advantages of this invention are as follows: The device of this invention is entirely one-button start-up. By using an internal pressure threshold and detection unit, it determines whether the hydrogen pressure at the hydrogen storage tank and fuel cell stack meets current requirements, greatly improving reliability and accuracy. The control unit receives signals from the detection unit to control the opening and closing of the device valves, achieving intelligent switching of the gas collection chamber. Through program control, it intelligently purges the pipelines of the newly switched gas collection chamber. After purging a preset number of times, gas is delivered, ensuring uninterrupted fuel cell testing. This invention avoids safety hazards during gas collection chamber switching and purging, significantly shortening time and improving testing efficiency. Furthermore, it eliminates the need for a large number of on-site personnel, saving manpower and resources, and achieving one-button start-up, ensuring efficient and safe fuel cell testing. The device of this invention has an ingenious structure, precise requirements, low production and maintenance costs, and simple operation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the rapid and safe purging pipeline device according to an embodiment of the present invention;

[0029] Figure 2 This is a control flowchart of the control method for the rapid and safe purging pipeline device according to an embodiment of the present invention;

[0030] In the diagram: 1. Purge pipe; 101. Main pipe; 102. Exhaust pipe; 2. Controller; 3. Gas storage tank; 4. Bypass pipe; 5. First manual valve; 6. Gas storage tank solenoid valve; 7. First-stage pressure reducing valve; 8. First pressure gauge; 9. Third solenoid valve; 10. Hydrogen storage tank; 11. Second solenoid valve; 12. Check valve; 13. Flame arrester; 14. First solenoid valve; 15. Fourth solenoid valve; 16. Second-stage pressure reducing valve; 17. Second pressure gauge; 18. First pressure sensor; 19. Detection unit; 20. Sampling manual valve; 21. Sampling port; 22. Second manual valve; 23. Fuel cell stack; 24. Second pressure sensor; 25. Safety relief valve. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figure 1 As shown, the present invention provides a rapid and safe purging pipeline device, including: a gas-using end equipment group, a purging pipeline 1, a control unit, and a detection unit 19; the purging pipeline 1 includes a main pipeline 101, an exhaust pipeline 102, and several gas collection chamber components. The two ends of the exhaust pipeline 102 are respectively connected to the main pipeline 101 and the outside air. One end of the main pipeline 101 is connected to the gas-using end equipment group. By controlling the opening and closing of the solenoid valve, the connection and disconnection between the main pipeline 101 and the exhaust pipeline 102 can be achieved. Several gas collection chamber components are arranged side-by-side on the main pipeline 101, sequentially moving away from the gas-consuming equipment group. These components are used to switch and supply gas in sequence. The first gas collection chamber component activated is the one closest to the front of the gas-consuming equipment group. After the first one is used, the subsequent gas collection chamber components are used in sequence. The control unit includes a controller 2 and a control component. The control component is installed on the gas-consuming equipment group and the purging pipeline. The control component is mainly a pipeline access control device. The controller and the control component are electrically connected to achieve the control purpose, controlling the air intake of the gas-consuming equipment group and the start of purging. Through the coordination of multiple control devices under the control of the controller, the access path is controlled to achieve the switching between gas supply and purging. A detection unit 19 is installed on the gas-consuming equipment group and the purging pipeline 1 to detect the number of purging starts and the air intake pressure threshold of the gas-consuming equipment group. The detection unit 19 is electrically connected to the controller 2. The detection unit 19 transmits the detection signal to the control unit so that the control unit receives the threshold quantity that needs to be regulated, enabling intelligent switching of the gas collection chamber components and purging of the pipeline.

[0033] Understandably, the control unit sets a pressure threshold, the magnitude of which is determined based on the hydrogen requirements of the downstream equipment.

[0034] In this embodiment, to achieve effective channel control, the control component includes a first pressure reducing component, a first solenoid valve 14, a second solenoid valve 11, and several gas collection solenoid valves 6. All of these components are electrically connected to the controller 2. The first solenoid valve 14 is positioned between the gas-consuming equipment group and the main pipeline 101 to control the air intake of the gas-consuming equipment group. The second solenoid valve 11 is positioned on the exhaust pipeline 102 to control the exhaust during purging. Several gas collection solenoid valves 6 are connected in series on the main pipeline 101 and correspond to the gas collection components, respectively, to control the gas input from the gas collection components into the main pipeline 101. The first pressure reducing component is positioned adjacent to the gas collection components on the main pipeline 101 to perform a first-stage pressure reduction on the input gas.

[0035] Specifically, when the air chamber solenoid valve 6 is open, the first solenoid valve 14 is closed, and the second solenoid valve 11 is open, it is the passage for the purging pipeline; when the air chamber solenoid valve 6 is open, the first solenoid valve 14 is open, and the second solenoid valve 11 is closed, it is the passage for the supply gas path.

[0036] In addition, the first pressure reducing assembly includes a first-stage pressure reducing valve 7, a first pressure gauge 8, and a third solenoid valve 9. The first-stage pressure reducing valve 7 and the third solenoid valve 9 are both installed in series on the main pipeline 101, and the first pressure gauge 8 is located between the first-stage pressure reducing valve 7 and the third solenoid valve 9 to detect the pressure value after pressure reduction by the first-stage pressure reducing valve 7.

[0037] Understandably, the first-stage pressure reducing valve 7 is used for the first-stage pressure reduction of hydrogen in the main pipeline 101, and the first solenoid valve 14 and the second solenoid valve 11 are used to control the switching between hydrogen in the main pipeline 101 and the exhaust pipeline 102.

[0038] In one embodiment, in order to enable manual control of the gas collection chamber assembly, the gas collection chamber assembly includes a branch pipe 4, a first manual valve 5, and a gas storage chamber 3. One end of the first manual valve 5 is installed on the main pipe 101 and its position corresponds to the gas chamber solenoid valve 6. The other end of the first manual valve 5 is connected to the branch pipe 4, and the other end of the branch pipe 4 is connected to the gas storage chamber 3. The first manual valve 5 controls the gas output of the gas storage chamber 3, and the gas chamber solenoid valve 6 controls the connection between the gas and the main pipe. The hydrogen output of the gas storage chamber 3 can be manually controlled through the first manual valve 5.

[0039] Understandably, based on the hydrogen performance requirements of fuel cells, the number of intelligently switching gas collection chamber components in this invention is unlimited. At the same time, the gas components used in this invention are not limited to hydrogen, but can also be other gases. After multiple gas collection chamber components are placed in a designated position, they are connected to the fuel cell main pipeline 101. The main pipeline 101 is equipped with a first-hand valve 5. After connection, all of them are opened. The gas chamber solenoid valve 6 is used to control the intelligent switching of the hydrogen gas collection chamber.

[0040] In one embodiment, in order to achieve the detection purpose, the detection unit 19 includes a first pressure sensor 18 and a solenoid valve microcontroller. The first pressure sensor 18 is installed on the gas-consuming equipment group and is used to detect the gas supply pressure of the gas-consuming equipment group. The solenoid valve microcontroller is installed on the second solenoid valve 11 and is used to detect the number of times the second solenoid valve 11 is opened and closed. Both the first pressure sensor 18 and the solenoid valve microcontroller are electrically connected to the controller 2. The first pressure sensor 18 is located after the first pressure reducing component and is used to detect the gas pressure after the first pressure reduction.

[0041] Understandably, the solenoid valve microcontroller is a micro controller built into the second solenoid valve 11, which is an existing structural component.

[0042] In one embodiment, the gas-using equipment group includes a hydrogen storage tank 10 and a fuel cell stack 23, which are gas-using devices in the fuel cell system. The hydrogen storage tank 10 is connected in series on the main pipeline 101, and the fuel cell stack 23 is connected in parallel on the main pipeline 101. A second pressure reducing component is provided between the fuel cell stack 23 and the main pipeline 101 to perform a second pressure reduction on the input gas. The hydrogen after the second pressure reduction is used by the fuel cell stack 23, and the hydrogen after the first pressure reduction is used by the hydrogen storage tank 10.

[0043] The second pressure reducing assembly includes a secondary pressure reducing valve 16, a second pressure gauge 17, and a fourth solenoid valve 15. The secondary pressure reducing valve 16 and the fourth solenoid valve 15 are installed on corresponding pipelines, and the second pressure gauge 17 is located at the rear end of the secondary pressure reducing valve 16 to detect the pressure value after secondary pressure reduction.

[0044] Furthermore, in order to have the function of sampling and detection, a sampling component is provided between the fuel cell stack 23 and the second pressure reducing component for gas sampling and detection. The sampling component includes a sampling hand valve 20 installed on the pipeline and a sampling port 21 opened on the pipeline. By opening the sampling hand valve 20, the sample is taken through the sampling port 21.

[0045] Furthermore, both the hydrogen storage tank 10 and the fuel cell stack 23 are equipped with a second pressure sensor 24 and a safety relief valve 25 for gas pressure monitoring and overpressure discharge.

[0046] Furthermore, both the hydrogen storage tank 10 and the fuel cell stack 23 are connected to the main pipeline 101 via a second hand valve 22 for manually controlling the opening and closing of the gas passage input.

[0047] In one embodiment, a one-way valve 12 and a flame arrester 13 are provided at the tail end of the exhaust pipe 102. The one-way valve 12 and the flame arrester 13 perform post-processing of the exhaust gas. The gas purged by the one-way valve 12 flows in one direction and is finally discharged through the flame arrester 13.

[0048] Please see Figure 1 and Figure 2 This invention provides a control method for a rapid and safe purging pipeline device, which utilizes the aforementioned rapid and safe purging pipeline device and includes the following steps:

[0049] S1. First, the controller 2 on the control unit closes the first solenoid valve 14, cuts off the main pipeline 101 at the gas end, opens the solenoid valve 6 of the gas chamber component, and then controls the first-stage pressure reducing valve 7 on the first pressure reducing component to reduce the pressure to a suitable level.

[0050] S2. Then, the third solenoid valve 9 and the second solenoid valve 11 on the first pressure relief component are opened in sequence to form a purging flow path to the exhaust pipe 102. After the gas collection chamber component opens the gas chamber solenoid valve 6, it will purge. After purging, the gas will be discharged to the outside through the exhaust pipe 102 after being processed by the one-way valve 12 and the flame arrester 13.

[0051] S3. The purging time is controlled to be 6 seconds. The solenoid valve microcontroller on the detection unit 19 detects the number of times the second solenoid valve 11 is opened and feeds back to the controller 2 on the control unit. The purging stops after the set number of times is reached.

[0052] S4, after purging stops, the controller 2 on the control unit closes the second solenoid valve 11 and opens the first solenoid valve 14 to supply gas to the gas-consuming equipment group;

[0053] S5. During the gas supply process, the first pressure sensor 18 on the detection unit 19 detects the instantaneous value of the pressure of the gas-consuming equipment group of the fuel cell. If the instantaneous value meets the requirements, the gas supply will be uninterrupted.

[0054] S6. When the first pressure sensor 18 on the detection unit 19 detects that the pressure in the gas supply pipeline is less than the set pressure threshold, the controller 2 on the control unit controls the first solenoid valve 14 to stop the gas delivery.

[0055] S7. After the pressure signal is transmitted from the first pressure sensor 18 on the detection unit 19 to the controller 2 on the control unit, the controller 2 on the control unit controls the device to intelligently switch the air collection chamber components and simultaneously perform purging work, repeating the process from S1 to S6.

[0056] Understandably, before use, all first-hand valves 5 are opened. The first air collection chamber component is used first. The intelligent switching process is to keep the previous air chamber solenoid valve 6 open and open the next air chamber solenoid valve 6 to introduce the new air collection chamber component. In addition, the first-hand valve 5 of the previous one can be closed to replace the air collection chamber component that is short of air.

[0057] The specific workflow of this invention is as follows: Before starting the fuel cell purging pipeline device, the first manual valve 5 is fully opened. After the device starts, the first gas storage chamber 3 is purged first. When the purging time and number of purgings reach the specified number, the microcontroller on the second solenoid valve 11 transmits a signal to the controller 2, switching the purging path to the gas supply path, and controlling the first-stage pressure reducing valve to adjust to a suitable pressure before sending the gas to the gas consumption end. When the pressure of the first gas storage chamber 3 is lower than the set threshold, the first pressure sensor 18 on the detection unit 19 transmits a signal to the controller 2. The controller 2 then switches and purges the next gas storage chamber 3. After purging, the pressure is adjusted to a suitable level before sending the gas to the hydrogen storage tank 10 and the fuel cell stack 23. This intelligent switching and purging process is repeated sequentially to ensure continuous and uninterrupted use of the fuel cell gas consumption end, achieving precise and rapid control of the purging process.

[0058] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A rapid and safe pipeline purging device, characterized in that, include: Gas-using equipment group; The purging pipeline includes a main pipeline, an exhaust pipeline, and several gas collection chamber components. The two ends of the exhaust pipeline are connected to the main pipeline and the outside air, respectively. One end of the main pipeline is connected to the gas-consuming equipment group. Several gas collection chamber components are arranged side by side on the main pipeline and are sequentially moved away from the gas-consuming equipment group to switch and supply gas sequentially. The control unit includes a controller and a control component. The control component is disposed on the gas-consuming equipment group and the purging pipeline. The controller is electrically connected to the control component and is used to control the air intake of the gas-consuming equipment group and the start of purging. A detection unit is installed on the gas-consuming equipment group and the purging pipeline to detect the number of purging starts and the inlet pressure threshold of the gas-consuming equipment group, and the detection unit is electrically connected to the controller. The control assembly includes a first pressure reducing assembly, a first solenoid valve, a second solenoid valve, and several gas collection solenoid valves. All of these components are electrically connected to the controller. The first solenoid valve is positioned between the gas-consuming equipment group and the main pipeline to control the gas intake of the gas-consuming equipment group. The second solenoid valve is positioned on the exhaust pipeline to control the exhaust gas from the purging process. Several gas collection solenoid valves are connected in series on the main pipeline and correspond to the gas collection assembly, respectively, to control the gas input from the gas collection assembly to the main pipeline. The first pressure reducing assembly is positioned adjacent to the gas collection assembly on the main pipeline to perform a first-stage pressure reduction on the input gas. The detection unit includes a first pressure sensor and a solenoid valve microcontroller. The first pressure sensor is installed on the gas-consuming equipment group and is used to detect the gas supply pressure of the gas-consuming equipment group. The solenoid valve microcontroller is installed on the second solenoid valve and is used to detect the number of times the second solenoid valve is opened and closed. Both the first pressure sensor and the solenoid valve microcontroller are electrically connected to the controller. The first pressure sensor is located after the first pressure reducing component and is used to detect the gas pressure after the first pressure reduction. The gas-consuming equipment group includes a hydrogen storage tank and a fuel cell stack. The hydrogen storage tank is installed in series on the main pipeline, and the fuel cell stack is connected in parallel on the main pipeline. A second pressure reducing component is provided between the fuel cell stack and the main pipeline for a second pressure reducing of the input gas.

2. The rapid and safe purging pipeline device according to claim 1, characterized in that... The gas collection chamber assembly includes a bypass pipeline, a first manual valve, and a gas storage chamber. One end of the first manual valve is located on the main pipeline and its position corresponds to the gas chamber solenoid valve. The other end of the first manual valve is connected to the bypass pipeline, and the other end of the bypass pipeline is connected to the gas storage chamber. The first manual valve controls the gas outlet of the gas storage chamber, and the gas chamber solenoid valve controls the connection between the gas and the main pipeline.

3. The rapid and safe purging pipeline device according to claim 2, characterized in that, A sampling component is provided between the fuel cell stack and the second pressure reduction component for gas sampling and detection.

4. The rapid and safe purging pipeline device according to claim 3, characterized in that, Both the hydrogen storage tank and the fuel cell stack are equipped with a second pressure sensor and a safety relief valve for gas pressure monitoring and overpressure discharge.

5. The rapid and safe purging pipeline device according to claim 4, characterized in that, Both the hydrogen storage tank and the fuel cell stack are connected to the main pipeline via a second manual valve for manually controlling the opening and closing of the gas input path.

6. The rapid and safe purging pipeline device according to claim 5, characterized in that, The exhaust pipe is equipped with a one-way valve and a flame arrester at its tail end.

7. A control method for a rapid and safe purging pipeline device, characterized in that, It is carried out using the rapid and safe purging pipeline device as described in any one of claims 1 to 6, and includes the following steps: S1. First, the main pipeline at the gas consumption end is cut off by the control unit, blocking the connection between the main pipeline and the gas consumption end equipment group. Then, the connection with the corresponding gas collection chamber component is opened, and the incoming gas is reduced to a suitable pressure. S2. Then, the passage to the exhaust pipe is opened in sequence to form a purging flow path to the exhaust pipe. After the gas collection chamber component is connected to the main pipe, purging is carried out. After purging, the gas is discharged to the outside through the exhaust pipe after being treated. S3. The purging time is controlled to be 6 seconds. The detection unit detects and feeds back to the control unit. Purging stops after the set number of times is reached. S4, after purging stops, the control unit closes the passage of the exhaust pipe and opens the passage of the gas-consuming equipment group to supply gas to the gas-consuming equipment group; S5. During the gas supply process, the detection unit detects the instantaneous pressure of the gas-consuming equipment group of the fuel cell. If the instantaneous value meets the requirements, the gas supply will be uninterrupted. S6. When the detection unit detects that the pressure in the gas-consuming pipeline is less than the set pressure threshold, the control unit controls and blocks the passage between the gas-consuming equipment group and the main pipeline, stopping the gas delivery. S7. After the pressure signal is transmitted to the control unit through the detection unit, the control unit controls the device to intelligently switch the air collection chamber components and simultaneously perform purging work, repeating the process from S1 to S7.

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