High-temperature cone valve with cooling structure

Abstract

The invention relates to a high-temperature cone valve with a cooling structure. The high-temperature cone valve with the cooling structure comprises a servo valve, a cone valve element, a shell, a cooling shaft, a cooling block, a displacement sensor and a sealing ring, wherein the cone valve element is arranged in the shell, a control cavity A and a control cavity B are designed at the tail endof the cone valve element and the tail end of the shell, and the pressure of the control cavity A and the pressure of the control cavity B are adjusted, so that the movement of the cone valve elementin the shell is realized; and the cone valve element is of a hollowed-out structure, the interior of the cone valve element is hollowed out to form an oil cavity, normal-temperature oil enters an inner cavity of the valve element to be cooled, the cooling shaft is arranged in the inner cavity of the valve element and connected with the cone valve element, the normal-temperature oil entering the cone valve element is drained through the cooling shaft, and cooling is prevented from being affected by a dead cavity generated in the cone valve element. According to the high-temperature cone valve,the valve element is of a completely symmetrical structure, except for two oil ports in the shell, the rest of the overall structure is of a symmetrical structure, it is guaranteed that the overall temperature of the valve element is evenly distributed, and valve element clamping stagnation caused by uneven heating and inconsistent expansion amount of the overall structure is avoided.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control, and relates to a high-temperature cone valve with a cooling structure. 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 (such as high-temperature gas) 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 electronic components (such as sensors, motors, etc.) Normal work, and then cause the reduction of the whole valve control performance or even fail to work. At present, the maximum operating temperature of high-temperature valve products at home and abroad is about 500 degrees, and the service time in high-t...

AI Technical Summary

Problems solved by technology

When the temperature of the valve control object (such as high-temperature gas) 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 electronic components (such as sensors, motors, etc.) Normal work, and then cause the whole valve to reduce the control performance or even fail to work

At present, the maximum working temperature of high-temperature valve products at home and abroad is about 500 degrees, and the service time in high-temperature environments is relatively short, and most of them are in the form of on-off valves, which cannot realize continuous control of the control objects

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