An intelligent constant current and high precision temperature and pressure control valve

Abstract

The invention discloses an intelligent constant current and high-precision temperature control and pressure regulating valve, which relates to the technical field of regulating valves. The invention is provided with a self-sealing valve core and a valve stem, and a self-sealing channel is opened inside the valve stem, and the self-sealing valve core It is composed of a sealing seat, an air supply seat and an adjustment piece. The gas enters the self-sealing valve core through the self-sealing channel to provide a gas source for the sealing seat and the air supply seat. When the external gas supply is interrupted momentarily, the adjustment piece can be used to adjust the self-sealing valve core. The channel is blocked, so that the gas inside the sealing seat and the air supply seat cannot flow back through the self-sealing channel, so that the sealing seat and the air supply seat are always in an inflated state, that is, the self-sealing valve core can still block the adjustment hole, It makes it possible to control the fluid, provides time for maintenance personnel to perform maintenance, and avoids accidents.

Description

Technical field [0001] The present invention relates to the field of adjustment valve, and is specifically an intelligent constant current high-precision controlled control regulator. Background technique [0002] The regulating valve is a final control element by accepting the control signal, by power to change the medium flow, pressure, temperature, etc. Hydraulic regulating valve and self-active regulating valve, wherein the pneumatic regulating valve is used in industrial control, for example: China's utility model patent (Application No. CN20202491248.5) discloses a "pneumatic film regulator", reached The rapid action of the spool can be realized, and the effect of improving the valve control accuracy; [0003] However, the existing regulatory valve still exists in use: [0004] The existing aerodynamic regulating valve is usually air supply and exhaust through the air pump. When the air pump fails, the entire pneumatic regulating valve has no power support, resulting in aut...

AI Technical Summary

Problems solved by technology

[0004] Existing pneumatic control valves are usually supplied and exhausted by air pumps. When the air pump fails, the entire pneumatic control valve will have no power support, resulting in the entire control valve opening automatically, unable to control the medium, and not giving work. The time for personnel response and maintenance is prone to production accidents;

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