Anti-clogging type dome valve air control device

Abstract

An anti-blocking type dome valve air control device comprises a dome valve sealing ring, a dome valve cylinder, a first stopping ball valve, a second stopping ball valve, an exhaust ball valve, a journey switch, a dome valve control electromagnetic valve and a dome valve sealing ring aeration electromagnetic valve. The first stopping ball valve is connected between an air outlet source port of the dome valve control electromagnetic valve and a closed air inlet source port of the dome valve cylinder, the exhaust ball valve is connected between the air outlet source port of the dome valve control electromagnetic valve and an open air inlet source port of the dome valve cylinder through an air pipe, the second stopping ball valve is installed on an air source pipe behind a main air source filtering pressure reducing valve and is connected onto the air inlet source port of the dome valve cylinder through an air pipe. The anti-blocking type dome valve air control device solves the problem that the electromagnetic valve is blocked by dust, ensures that the dome valve can be opened and closed reliably and improves the reliability of a pneumatic ash transporting system.

Description

technical field [0001] The invention relates to the air flow control of mechanical valves, in particular to the air control device of dome valves. Background technique [0002] The dome valve is the most effective material conveying valve that can open and close quickly in the world. Its application fields in industry include electric power, food, medicine, chemical industry, plastics, mining, steel and other industries. , The dome valve can be divided into: straight stroke cylinder type dome valve, angle cylinder type dome valve and fan type cylinder type dome valve according to the cylinder drive form. Solenoid valve is an automatic basic component used to control the direction of fluid. It belongs to actuator. It is usually used on mechanical control and industrial valves to control the direction of medium, so as to control the valve switch. The spool of the dome valve is a spherical dome. During the switching process of the dome valve, there is a gap of about 2 mm betwe...

AI Technical Summary

Problems solved by technology

[0003] During the operation of the dome valve at the inlet of the mixer in the ash storehouse of the power plant, the dome valve could not be closed due to the jamming of the solenoid valve. When the dome valve is stuck and cannot be closed, the operating personnel can only notify the maintenance personnel to solve the problem on site. It takes a long time from the notification of the operation personnel to the completion of the processing by the maintenance personnel. During this period, a large amount of ash will leak out, which will affect the timely delivery of ash. Sinotrans

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