Ultrahigh-temperature gas flow regulating valve

Abstract

The invention provides an ultrahigh-temperature gas flow regulating valve which comprises a shell assembly and a valve body. The shell assembly and the valve body are in sealed connection and communication, a piston is movably arranged in the shell assembly, a valve element is arranged in the valve body, and the piston is connected with the valve element; the shell assembly is further provided with a high-temperature sealing assembly; a displacement detection module is installed on the valve body, a probe of the displacement detection module is connected with the piston, and the outer side of the displacement detection module is sleeved with a slow flow cooling assembly; and a valve element regulation and control assembly is installed on the valve body, and the displacement detection module and the valve element regulation and control assembly are both connected with a control module. According to the ultrahigh-temperature gas flow regulating valve, pumped low-temperature pressure oil is used for driving the valve element, meanwhile, electrical components are cooled, the high-temperature sealing assembly arranged on the shell assembly can separate a high-temperature gaseous working medium from the low-temperature pressure oil, and normal work of a jet pipe servo valve and a displacement sensor is guaranteed.

Description

technical field [0001] The invention relates to the technical field of flow regulating valves, in particular to an ultrahigh temperature gas flow regulating valve. Background technique [0002] High-temperature valves include high-temperature on-off valves and high-temperature flow control valves, which are in great demand in the fields of aerospace, coal mines, metallurgy, and nuclear industries. When the temperature of the valve control object is very high, a large amount of heat conducts heat conduction through the valve core and the shell, resulting in an increase in the temperature of the entire valve structure, which greatly affects the normal operation of electronic components such as sensors and motors, thereby causing the entire valve The reduction in control performance doesn't even work. At present, the medium temperature and ambient temperature requirements of the high temperature valve required by the new power engine are relatively high, which have reached abo...

AI Technical Summary

Problems solved by technology

When the temperature of the valve control object is very high, a large amount of heat conducts heat conduction through the valve core and the shell, resulting in an increase in the temperature of the entire valve structure, which greatly affects the normal operation of electronic components such as sensors and motors, thereby causing the entire valve Reduced control performance or even non-working

At present, the medium temperature and ambient temperature requirements of the high temperature valve required by the new power engine are relatively high, which have reached about 1000°C and 300°C respectively. The existing high temperature valve can no longer meet the use requirements of the new type engine.

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