Anti-resonance clean water valve

Abstract

The invention discloses an anti-resonance clean water valve. A hydraulic cylinder is arranged at the upper part of a valve body, wherein an upper flange adapter tube opening is formed in the lower part of the valve body; a lower flange adapter tube opening is formed between the flange adapter tube opening in the lower part and a hydraulic cylinder connection flange; a sealing structure is arranged in an opposite position between a flow intercepting direction and a medium controlling direction; the sealing structure is characterized in that a sealing valve seat is arranged at the root part of the flange adapter tube opening of the lower part; the sealing valve seat is in close fit with the valve body; the sealing surface is arranged under the valve seat; a sealing valve plate is fixed at the lower end of a piston rod of a hydraulic piston and is connected with the lower end of the piston rod through screw threads; a valve plate is arranged on the lower side of the valve seat; the sealing surface of the valve plate faces upwards. Compared to the prior art, the anti-resonance clean water valve has the advantages that the valve switching-off force and the medium pushing force offset each other, so the resonance of the valve plate end is avoided, the valve seat and the valve plate sealing surface are protected, the valve switching-on force and the medium pushing force offset each other, so the resonance of the piston cylinder end is avoided, and the piston and the piston rod structure are protected. The anti-resonance clean water valve is safe and reliable, excellent in practical function, and capable of ensuring the continuous operation of the industrial production.

Description

technical field [0001] The invention belongs to the technical field of pulp transportation, and relates to an anti-resonance clean water valve in which the driving force of the valve is opposite to the flow direction of the medium or the pressure of the medium, that is, the directions of the two forces are opposite and not superimposed. Background technique [0002] The clean water valve is used in the water isolation slurry pump system. The water isolation slurry pump (common name: water isolation pump) is a high-concentration, high-lift, large-flow, high-efficiency, long-life slurry pump, mainly used in solid-liquid two Phase pipeline transportation. The water isolation slurry pump mainly transports solid-liquid two-phase media (generally, the diameter of solid particles is less than 2-4mm), such as: fine powder ore, tailings, coal water slurry, underground sludge, power plant ash and sewage treatment plant sludge, etc. etc., with a wide range of applications. Its bas...

AI Technical Summary

Problems solved by technology

[0003]The purpose of this invention is to overcome the technical shortcomings of the existing clean water valve, solve the damage problem caused by the resonance of the valve seat of the current clean water valve from the principle and structure, and provide a structure Reasonable and scientific anti-resonance clean water valve