A three-way control valve for high pressure

Abstract

The invention discloses a three-way control valve for a high-pressure place. The three-way control valve comprises a valve body, a guide cover, a valve element, a valve rod, an upper valve seat, a balancing cylinder, a guide ring, an O-shaped sealing ring, a piston, a valve cover, a filler, a lower valve seat, a connecting pipe and an execution mechanism, wherein the valve body is provided with a flow passage port A, a flow passage port B and a flow passage port C. When the three-way control valve for the high-pressure place works, the valve element and the valve rod are driven by the execution mechanism to move up and down between the upper and lower valve seats in the valve body to automatically control two paths of fluids to be combined into one path of fluid or split one path of fluid into two paths of fluids, so that the unbalanced force of a medium on the valve element is eliminated, and the output force of the execution mechanism is greatly reduced; the guide ring is arranged on the piston, and the guide cover is arranged at the bottom end of the valve element, so that a guide function is realized, the valve can more stably work, the problems of difficulty in opening and closing, instable movement and great vibration in a running process and the like when the valve is used for the high-pressure place are solved, and the requirements of use under a high-pressure working condition are met.

Description

technical field [0001] The invention relates to a three-way control valve, in particular to a three-way control valve for high-pressure situations. Background technique [0002] The three-way control valve is a valve that combines two fluids into one fluid or distributes one fluid into two fluids. Currently, the three-way control valves on the market all adopt an unbalanced spool structure, which has a large unbalanced force. , Unstable action, large vibration and other problems, especially under high pressure conditions, seriously affect the normal use of the valve and cannot meet the requirements of self-control. Contents of the invention [0003] The object of the present invention is to provide a three-way control valve for high-pressure applications, so as to solve the problems raised in the above-mentioned background technology. [0004] To achieve the above object, the present invention provides the following technical solutions: [0005] A three-way control valve...

AI Technical Summary

Problems solved by technology

[0002] The three-way control valve is a valve that combines two fluids into one fluid or distributes one fluid into two fluids. Currently, the three-way control valves on the market all adopt an unbalanced spool structure, which has a large unbalanced force. , Unstable movement, large vibration and other problems, especially under high pressure conditions, seriously affect the normal use of the valve and cannot meet the requirements of self-control

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