Superpressure pneumatic pressure-release valve with adjusting gas source switch

Abstract

In the present invention, a first high pressure sensing device is connected to the air inlet of the main valve, and a second high pressure transducing device is connected to the air outlet of the main valve. The air inlet end of the first high pressure pneumatic switch valve is connected with the air inlet chamber of the main valve, and the exhaust end is connected with the pressure-regulating chamber of the main valve. The air inlet end of the second high pressure pneumatic switch valve is connected with the pressure-regulating chamber of the main valve, and the exhaust end is connected with the exhaust chamber of the main valve. The holding wire of the first and second high pressure transducing units and the electromagnetic control wire of the first and second high pressure pneumatic switch valves are connected with the display unit and the control part. The air in the pressure-regulating chamber is used for controlling the opening of the main valve so as to realize throttling.

Description

technical field [0001] The invention relates to an air source switch-adjustable ultra-high pressure pneumatic decompression valve. Background technique [0002] In the pneumatic high-pressure field, high-pressure gas is generally stored in high-pressure gas tanks and other containers, and then reduced to an appropriate pressure by a pressure-relief device for use. However, most pressure-relief valves are manually operated at this stage, with low automation, inconvenient operation, and slow adjustment speed. , and safety cannot be guaranteed; a small number of electronically controlled pressure reducing valves have low output pressure, small output flow, and low adjustment accuracy. In some ultra-high-pressure and large-flow situations, especially where rapid pressure changes are required, there is an urgent need for a large-flow ultra-high pressure pneumatic pressure reducing valve that can realize automatic control. Contents of the invention [0003] The purpose of the p...

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Problems solved by technology

[0002] In the pneumatic high-pressure field, high-pressure gas is generally stored in high-pressure gas tanks and other containers, and then reduced to an appropriate pressure by a pressure-relief device for use. At present, pressure-relief valves are mostly manually operated, with low automation, inconvenient operation, and slow adjustment speed. , and safety cannot be guaranteed; a small number of electronically controlled pressure reducing valves have low output pressure, small output flow, and low adjustment accuracy

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