Pressure-adjustable auxiliary control system for high-pressure gas sealing detection

A pressure-adjustable auxiliary control system for high-pressure gas sealing detection, comprising:

• a high-pressure chamber environment monitoring unit, configured to test sealing performance of a sealing member in a high-pressure test gas sealing environment with a test gas pressure of equal to or greater than 200 MPa;
• a first gas pipeline, divided into a first branch of the first gas pipeline and a second branch of the first gas pipeline, wherein the first branch of the first gas pipeline is connected to the high-pressure chamber environment monitoring unit as a first gas replacement path, a first air control valve is arranged in the first branch of the first gas pipeline, and a second air control valve is arranged in the second branch of the first gas pipeline;
• a second gas pipeline, in which a third air control valve is arranged;
• a test gas pressurization path, connected to the high-pressure chamber environment monitoring unit, wherein the second branch of the first gas pipeline together with the second gas pipeline is connected to the test gas pressurization path;
• a first booster pump processing unit and a second booster pump processing unit, arranged in the test gas pressurization path for pressurizing a test gas, wherein the first booster pump processing unit is located upstream of the second booster pump processing unit, and a first offload port is connected through offload paths located on the test gas pressurization path at a position upstream of the first booster pump processing unit and at a position downstream of the second booster pump processing unit respectively;
• a system air control module, configured for control of respective air control valves in the auxiliary control system;
• wherein the system air control module comprises:
• a system compressed air inlet, connected to a booster pump air control module;
• and at least one set of system air control components, wherein each set of system air control components comprises one system compressed air sub-outlet, and a solenoid valve connected between the system compressed air inlet and the system compressed air sub-outlet, for controlling air control valves of the auxiliary control system;
• wherein each set of system air control components further comprises a muffler and a one-way throttle valve which are arranged between the system compressed air inlet and the system compressed air sub-outlet;
• the booster pump air control module, connected to the system air control module, the first booster pump processing unit and the second booster pump processing unit, and configured to provide a compressed air source supplied to the system air control module, the first booster pump processing unit and the second booster pump processing unit separately;
• wherein the booster pump air control module comprises a first compressed air source inlet, a pressure relief valve and a second compressed air source outlet;
• wherein the first compressed air source inlet is connected to a driving air source preprocessing unit, and the second compressed air source outlet is connected to the system air control module, the first booster pump processing unit, and the second booster pump processing unit, respectively;
• wherein the second compressed air source outlet comprises:
• a first sub-compressed air source outlet, connected to a first compressed air inlet of the first booster pump processing unit;
• a second sub-compressed air source outlet, connected to a second compressed air inlet of the second booster pump processing unit;
• and a third sub-compressed air source outlet, connected to the system air control module;
• wherein a second pressure relief valve and a fifth pressure gauge are arranged in a pipeline between the first compressed air source inlet and the first sub-compressed air source outlet, a third pressure relief valve and a sixth pressure gauge are arranged in a pipeline between the first compressed air source inlet and the second sub-compressed air source outlet, and the third sub-compressed air source outlet is connected to the first compressed air source inlet and the system air control module;
• and
• the driving air source preprocessing unit, connected to the booster pump air control module and configured to provide the booster pump air control module with the compressed air source for supplying a compressed air to the system air control module, the first booster pump processing unit and the second booster pump processing unit separately;
• wherein the driving air source preprocessing unit comprises an air compressor and the first compressed air source outlet connected in sequence from upstream to downstream, and the first compressed air source outlet is connected to the booster pump air control module;
• wherein the driving air source preprocessing unit further comprises a gas tank, a first filter, a refrigeration dryer, a second filter and a third filter connected in sequence between the air compressor and the first compressed air source outlet;
• wherein the first filter is configured for a preliminary filtration of the compressed air to remove solid impurities and protect the refrigeration dryer from inhaling mechanical impurities;
• the second filter and the third filter are configured for a secondary filtration of the compressed air so that cleanness is ensured for the compressed air discharged from the first compressed air source outlet;
• wherein the first booster pump processing unit comprises:
• a first air control booster pump equipped with the first compressed air inlet, a first test gas inlet, a first test gas outlet and a second offload port, wherein the first compressed air inlet is connected to the booster pump air control module and a fourth air control valve;
• the second booster pump processing unit comprises:
• a second air control booster pump equipped with the second compressed air inlet, a second test gas inlet, a second test gas outlet and a third offload port, wherein the second compressed air inlet is connected to the booster pump air control module and a fifth air control valve.