A kind of anti-clogging regulating valve

Abstract

The invention discloses an anti-blocking regulating valve, which comprises a valve body, a valve cavity is arranged in the valve body, a valve plate is arranged in the valve cavity, and the valve plate divides the valve cavity into an upper valve cavity and a lower valve cavity , the valve plate is provided with a valve port, and the valve plate is provided with an orifice at the upper end of the valve port; the side of the valve body is provided with an outlet pipe and an inlet pipe; the upper end of the valve body is equipped with a valve cover, A shaft is arranged inside the valve cover, a throttle valve head is provided at the lower end of the shaft rod, a valve rod is connected with internal threads of the shaft rod and the throttle valve head, and a valve block is provided at the lower end of the valve rod; The valve plate is provided with a plurality of valve seat baffles around the orifice along the circumferential direction of the orifice; the valve body is provided with a valve control assembly for controlling the synchronous movement of a plurality of valve seat baffles; the anti-blocking adjustment The valve is not only simple in structure, but also prevents 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, and whether the regulating valve can work normally or not directly affects the use effect of the entire pipeline control system. The traditional control valve has the following problems during use: [0003] (1) When the regulating valve is opened, 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, thereby affecting the sealing effect of the regulating valve when it is closed, and the service life is not l...

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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