Two-seal valve

Abstract

The invention discloses a two-seal valve which structurally comprises a handle, a valve body and connecting plates. The handle is vertically installed at the center position of the top of the valve body. The connecting plates are located on the two sides of the valve body in a welded manner. When mud passes through a valve clack and the valve body, a small amount of sand remains on the exterior ofthe valve body, by means of cooperation between a clearing device and the inner side of the valve body, a scraping plate scrapes off the sand on the inner side of the valve body and collects the sand, the sand accumulating on the inner side of the valve body is reduced, friction between the valve clack and the valve body is reduced beneficially, contact abrasion between the valve clack and the valve body is reduced, the fitting degree between the valve clack and the valve body is improved, and mud fluid permeating and passing along the gap is reduced. As the mud is easily solidified on the outer wall of the valve clack, direct fall of the valve clack is increased, the valve clack moves up and down and back and forth and cooperate with a sealing block, a clearing block of the sealing blockclears the sand on the outer wall of the valve clack, the mud solidified on the outer wall of the valve clack is reduced, the outer wall of the valve clack keeps neat beneficially, cooperation between the valve clack and the valve body is enhanced, and the mud can be controlled and limited beneficially.

Description

technical field [0001] The invention belongs to the field of valves, and more specifically relates to a two-way sealing valve. Background technique [0002] Because the valve has the functions of diversion and adjustment, it is an important control component in the fluid delivery system. In order to facilitate the control of the delivery of mud during construction, two sealed valves are used to control the mud, and the valve stem and the stem nut are driven by the handwheel. Cooperating with the lifting, the valve stem drives the valve disc to contact and separate from the valve body, so as to block and pass through the mud; when using two sealed valves to control the mud in the prior art, since the mud is a viscous fluid, the fluid contains fine particles. During the process of sand and mud passing through the disc and the valve body, a small amount of sand stays outside the valve body, which increases the friction between the disc and the valve body, accelerates the contac...

AI Technical Summary

Problems solved by technology

[0002] Because the valve has the functions of diversion and adjustment, it is an important control component in the fluid delivery system. In order to facilitate the control of the delivery of mud during construction, two sealed valves are used to control the mud, and the valve stem and the stem nut are driven by the handwheel. Cooperating with the lifting, the valve stem drives the valve disc to contact and separate from the valve body, so as to block and pass through the mud; when using two sealed valves to control the mud in the prior art, since the mud is a fluid with viscosity, the fluid contains fine particles. During the process of sand and mud passing through the valve disc and the valve body, a small amount of sand remains outside the valve body, which increases the friction between the valve disc and the valve body, accelerates the contact wear between the valve disc and the valve body, and reduces the friction between the valve disc and the valve body. The matching degree of the valve body, and there is a gap between them, and the mud fluid penetrates through the gap

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