Slide valve type pilot ultra-high pressure pneumatic proportional pressure-reducing valve

Abstract

The invention discloses a slide valve pilot super high-pressure air power proportional reduction valve. It comprises a pilot valve and a main valve installed on the same valve body under the control of the proportional electromagnet. The air pressure of the lead valve can control the output pressure of the main valve. The lead valve applying C-type semi-bridge structure, the air of the semi-bridge is drawn from the high air pressure inlet of the main valve, the pilot valve under the control of the proportional electromagnet forms the inlet dynamic air damp; the outlet of the semi-bridge is connected with the outlet of the reduction valve, and a fixing air damp is arranged between them forming the fixing air damp of the outlet. The pressure-regulating chamber is on the dynamic balance status under the control of the pilot valve. The valve just uses a proportional electromagnet. When the system is out of power, the pilot valve and main valve will close automatically with the function of resetting spring and air pressure. When the system pressure is higher than expected, air can release pressure via the dismountable security valve.

Description

technical field [0001] The invention relates to a pneumatic decompression valve, in particular to a slide valve pilot type ultra-high pressure pneumatic proportional decompression valve. Background technique [0002] At present, in the field of pneumatic high-pressure, high-pressure gas is generally stored in high-pressure gas tanks and other containers, and then reduced to an appropriate pressure through a pressure reducing valve for use. At this stage, most pressure reducing valves are manually operated, with low automation and inconvenient operation. slow, and safety cannot be guaranteed; a small number of electronically controlled pressure reducing valves have low output pressures, all below 10Mpa, and the output flow is small and inconvenient to adjust. In some ultra-high pressure and large flow situations, especially where rapid pressure changes are required, there is an urgent need for an ultra-high pressure and large flow pneumatic pressure reducing valve that can re...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of pneumatic high-pressure, high-pressure gas is generally stored in high-pressure gas tanks and other containers, and then reduced to an appropriate pressure through a pressure reducing valve for use. At this stage, most pressure reducing valves are manually operated, with low automation and inconvenient operation. slow, and safety cannot be guaranteed; a small number of electronically controlled pressure reducing valves have low output pressure, all below 10Mpa, and the output flow is small and inconvenient to adjust

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