Anti-blockage regulation valve

Abstract

The invention discloses an anti-blockage regulation valve. The anti-blockage regulation valve comprises a valve seat and a valve element, wherein the valve seat is provided with a mounting channel which is through in the thickness direction of the valve seat; the inner wall face of the valve seat is provided with at least one scraping knife part protruding inwards in the radial direction of the valve seat; at least one part of the upper surface of each scraping knife part forms a first bevel obliquely extending relative to the horizontal direction; at least one part of the lower surface of each scraping knife part forms a second bevel obliquely extending relative to the horizontal direction; the valve element is a V-shaped unbalanced valve element; the valve element is arranged in the mounting channel and can move in the axial direction of the mounting channel; at least one part of the inner wall face of each scraping knife part abuts against the outer wall face of the valve element toscrape off impurities on the outer wall face of the valve element when the valve element moves. The anti-blockage regulation valve provided by the invention is simple in structure, convenient to disassemble and assemble, not prone to blockage and suitable for the working conditions of easy crystallization, blockage and particles.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to an anti-clogging regulating valve. Background technique [0002] In the automatic control of modern factories, the regulating valve plays a key role in throttling control in the pipeline. Among them, the unbalanced single-seat control valve has become the most widely used control valve because of its low flow resistance design, simple flow path, small size, light weight, reliable performance and unfavorable jamming. With the rapid development of the petrochemical industry, the transportation conditions of fluid media present a trend of complexity and diversification, among which valve blockage during use is one of the common faults, especially in mud, pulp, caustic soda or carbonization , easy to crystallize, and occasions with particles, clogging is a common fault. Although single-seat control valves have the characteristics of not being easy to clog, there are still problems of...

AI Technical Summary

Problems solved by technology

With the rapid development of the petrochemical industry, the transportation conditions of fluid media present a trend of complexity and diversification, among which valve blockage during use is one of the common faults, especially in mud, pulp, caustic soda or carbonization , easy to crystallize, and occasions with particles, clogging is a common fault. Although single-seat control valves have the characteristics of not being easy to clog, there are still problems of clogging in the above-mentioned applications.

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