Deashing device for pneumatic plugboard isolated door

Abstract

The invention relates to a deashing device for a pneumatic plugboard isolated door and belongs to the technical field of power station auxiliary equipment. The deashing device for the pneumatic plugboard isolated door comprises an air storage tank, wherein the air storage tank is provided with an air inlet pipeline and an air outlet pipeline; an air inlet valve is arranged on the air inlet pipeline; a pulse solenoid valve and a check valve are arranged on the air outlet pipeline; and the solenoid valve is positioned between the air storage tank and the check valve. When the deashing device for the pneumatic plugboard isolated door operates, the air inlet valve is opened, the compressed air enters the air storage tank through the air inlet pipeline, a control circuit controls the pulse solenoid valve to circularly blow high-pressure and high-frequency gas at regular time, deashing is conducted on a door sheet track, the check valve controls the flow direction of gas in the pipelines, the high-temperature and high-pressure gas in an air duct is prevented from flowing to the pulse solenoid valve, and the pulse solenoid valve is protected against being damaged by the high-temperature and high-pressure gas. As the improvement of the deashing device, a filter is arranged on the air intake pipeline to prevent impurities in the compressed gas from entering the deashing device to influence normal operation of the valves.

Description

technical field [0001] The invention belongs to the technical field of power station auxiliary machines, and in particular relates to a pneumatic dust cleaning device. Background technique [0002] Due to the large amount of coal ash contained in the air of the hot primary air duct of the power station boiler, the interior of the pneumatic sliding plate isolation door installed in this air duct is seriously ash-accumulated, and the door panel switch often fails due to ash accumulation, which affects the safe operation of the boiler. And inspection and maintenance bring hidden dangers and inconvenience. Contents of the invention [0003] In view of the above technical problems, the present invention provides a pneumatic plate-type isolation door dust cleaning device that can regularly and automatically clean the isolation door. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is that a pneumatic plat...

AI Technical Summary

Problems solved by technology

[0002] Due to the large amount of coal ash contained in the air of the hot primary air duct of the power station boiler, the interior of the pneumatic sliding plate isolation door installed in this air duct is seriously ash-accumulated, and the door panel switch often fails due to ash accumulation, which affects the safe operation of the boiler. Hidden dangers and inconveniences caused by overhaul and maintenance

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