Special blow-down valve for environment-friendly sewage treatment engineering

Abstract

The invention discloses a special blow-down valve for environment-friendly sewage treatment engineering. The special blow-down valve comprises a blow-down valve body, the top of the blow-down valve body is fixedly connected with uniformly distributed fixing support columns, a fixed plate is arranged above the blow-down valve body, the fixed plate is fixedly connected to the top of the blow-down valve body, and a lead screw is in threaded connection with the interior of the fixed plate and extends into the blow-down valve body. A high-pressure water pipe is connected with high-pressure water flow before the valve is opened, so that the water flow enters a second water flow channel through a first water flow channel, then the high-pressure water flow is sprayed out by a first high-pressure spray head to crush and dilute sludge and increase the fluidity, then the valve is opened, a valve plate is lifted, the first water flow channel is not blocked, and at the moment, the high-pressure water flow is sprayed out through the second high-pressure spray head, so that the flowability is improved, the blow-down speed is increased, the valve plate is opened more easily, the service life of the valve plate is prolonged, and blow-down is smoother.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a special sewage valve for environmental protection sewage treatment engineering. Background technique [0002] The sewage valve is evolved from the gate to achieve the purpose of opening and closing. The sewage valve is not only simple in structure and good in sealing, but also small in size, light in weight, less in material consumption, small in installation size, especially small in driving torque, and easy to operate. , easy to realize fast opening and closing, often used for sewage sedimentation tanks and sewage tanks. [0003] However, there is sediment accumulated at the bottom of the sewage tank, and the fluidity of the sediment is poor, and even sticks into blocks. The opening resistance of the valve is very large, which is inconvenient to open, which may affect the service life, and may even cause silting in the valve; the existing The blowdown valve does n...

AI Technical Summary

Problems solved by technology

[0003] However, there is sediment accumulated at the bottom of the sewage tank, and the fluidity of the sediment is poor, and even sticks into blocks. The opening resistance of the valve is very large, which is inconvenient to open, which may affect the service life, and may even cause silting in the valve; the existing The blowdown valve does not have the function of derusting the pipeline, which leads to the rusted pipeline being easily damaged, the service performance is reduced, and leakage may occur, and the existing blowdown valve does not have the function of temporary sealing, so when the pipeline leaks, the sewage will continue to flow out, causing pollution to the outside world

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