Self-sealing sludge discharging valve

Abstract

The invention relates to the technical field of sludge discharge valves, and discloses a self-sealing sludge discharging valve. The self-sealing sludge discharging valve comprises a valve body, wherein the valve body comprises a metal shell, a cavity is formed inside the metal shell, a safety air bag is arranged at the bottom of the metal shell, a valve clack is fixedly connected to the upper endof the safety air bag, a metal rod is inserted on the surface of the valve clack, a valve rod is fixedly installed inside the metal rod, the bottom end of the metal rod is in threaded connection witha metal block, the left end and the right end of the metal block are fixedly provided with metal supporting rods, and the left end and the right end of the metal supporting rod are fixedly connected with mounting blocks. The overall external connection size is consistent with that of a conventional product, the height and the width size are consistent with those of conventional products, completely replacing is achieved, convenient and efficient are achieved, if the falling height of the valve clack is not enough to be sealed, the safety air bag is used for expansion for a secondary sealing; and the practicability and the safety of the product can be dually guaranteed.

Description

technical field [0001] The invention relates to the technical field of mud discharge valves, in particular to a self-sealing mud discharge valve. Background technique [0002] The sludge discharge valve is a device installed at a specific position in the sedimentation tank of sewage treatment. It is often used to discharge sludge at the bottom of the sedimentation tank of urban water works and sewage treatment plants. It is a device for removing sludge and emptying the bottom of the tank. It is mainly composed of valve body, valve cover, diaphragm, diaphragm seat, valve disc, valve stem, external piping and other auxiliary parts and facilities. [0003] At present, the sludge discharge valves on the market are directly driven by the diaphragm pressure to drive the valve stem, which drives the valve disc to open or close directly, which will lead to improper opening / closing, resulting in leakage, resulting in the discharge of sewage / sludge and polluting the environment. Ther...

AI Technical Summary

Problems solved by technology

[0003] At present, the sludge discharge valves on the market are directly driven by the diaphragm pressure to drive the valve stem, which drives the valve disc to open or close directly, which will lead to improper opening / closing, resulting in leakage, resulting in the discharge of sewage / sludge and polluting the environment

Therefore, the conventional mud discharge valve in the current market cannot provide double protection. It is closed and sealed twice, and opened once. It is inconvenient to use and there is a risk in safety.

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