Anti-blocking regulating valve

Abstract

The invention discloses an anti-blocking regulating valve. The anti-blocking regulating valve comprises a valve body, a valve cavity is formed in the valve body, a valve plate is arranged in the valvecavity, the valve plate divides the valve cavity into an upper valve cavity and a lower valve cavity, a valve port is formed in the valve plate, and an orifice is formed in the position, at the upperend of the valve port, of the valve plate; an outlet pipe and an inlet pipe are arranged on the side face of the valve body; a valve deck is installed at the upper end of the valve body, a shaft rodis arranged in the valve deck, a throttling valve head is arranged at the lower end of the shaft rod, a valve rod is connected into the shaft rod and the throttling valve head in a threaded mode, anda valve block is arranged at the lower end of the valve rod; and a plurality of valve seat baffles are arranged at the position, around the orifice, on the valve plate along the circumferential direction of the orifice, and a valve control assembly used for controlling the multiple valve seat baffles to move synchronously is arranged in the valve body. The anti-blocking regulating valve is simplein structure and can be prevented from being blocked.

Description

technical field [0001] The invention belongs to the technical field of pipeline valves, in particular to an anti-blocking regulating valve. Background technique [0002] Control valves are widely used to control the process parameters of gas, liquid, steam and other media such as pressure, flow, temperature, and liquid level to maintain a given value. At present, in modern control, the regulating valve plays a very important role. Whether the regulating valve can work normally directly affects the use effect of the entire pipeline control system. Traditional regulating valves have the following problems during use: [0003] (1) When the regulating valve is open, impurities or solid particles in the medium impact the sealing surface of the valve core during the flow process, which will cause damage to the sealing surface of the valve core for a long time, and then affect the sealing effect when the regulating valve is closed, and the service life is not good long; [0004]...

AI Technical Summary

Problems solved by technology

[0003] (1) When the regulating valve is open, impurities or solid particles in the medium impact the sealing surface of the valve core during the flow process, which will cause damage to the sealing surface of the valve core for a long time, and then affect the sealing effect when the regulating valve is closed, and the service life is not good long;

[0004] (2) If there are solid particles in the medium used, when the opening of the regulating valve is relatively small (the distance between the sealing surface of the valve core and the sealing surface of the valve seat is relatively close), the solid particles are easy to block at the valve port, causing the valve to be stuck. die and damage the sealing surface

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