Novel wear-resistant pneumatic disc valve

Abstract

The invention discloses a novel wear-resistant pneumatic disc valve which comprises a valve body. A valve seat is arranged at the bottom of the valve body, screw rods which are uniformly distributed are in threaded connection with the interior of the valve body, the valve body is fixedly connected with the valve seat through the screw rods, the two ends of each screw rod are in threaded sleeve connection with nuts, and one side of the valve body and one side of the valve seat communicate with a connecting pipe. A rotating rod is rotationally connected into the valve body, one end of the rotating rod extends to the top of the valve body, and the end, located outside the valve body, of the rotating rod is fixedly sleeved with a bent connecting rod. One end of a pipeline is inserted into the connecting pipe, then the pipeline is fixed, at the moment, an elastic air bag can be inflated through an air pipe, the elastic air bag is inflated and expanded, at the moment, the elastic air bag can be tightly attached to the outer portion of the pipeline, the sealing performance during connection is guaranteed, and the sealing performance during connection can be further improved through a flexible sealing piece; and opening and closing of the air pipe can be controlled through an air valve, and therefore the effect of high sealing performance is achieved.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a novel wear-resistant pneumatic disc valve. Background technique [0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. The valve is a device that makes the medium (liquid, gas, powder) in the piping and equipment flow or stop and can control its flow. The valve can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal The flow of various types of fluids such as radioactive media, and the disc valve is a fast-opening and quick-closing valve that realizes the switch by sliding the disc. The disc valve is mainly used in coal chemical industry, silicon chemical industry, metallurgy, electric power, petrochemical industry And the balance of the position of the lock bucket in the cement industry, venting and other pressure relief stations. [0003] However, the wear resistance of disc v...

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