A continuous rotary screen purification industrial water device and control method

By detecting the pressure and water quality of the rotating filter device, precise automatic control of filter backwashing is achieved, solving the problem of filter clogging, ensuring stable water quality and resource conservation, and improving the level of automation.

CN122164135APending Publication Date: 2026-06-09HENAN ZHONGYUAN GAS POWER GENERATION CO LTD OF HUANENG GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN ZHONGYUAN GAS POWER GENERATION CO LTD OF HUANENG GROUP
Filing Date
2026-03-31
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing filter devices cannot accurately start backwashing based on the actual degree of filter clogging, lack real-time detection of backwashing termination conditions, and easily mix backwash wastewater with purified effluent, leading to water quality impact and resource waste.

Method used

A rotating filter device is used, and the backwash is automatically started by monitoring the filter pressure difference through a pressure gauge. A water quality detection device is installed on the sewage branch pipeline to monitor the backwash water quality in real time, so as to achieve the separation of backwash sewage and purified water.

Benefits of technology

It achieves precise control and thoroughness of backwash initiation, avoids untimely or excessive backwashing, ensures water quality stability and resource conservation, and improves the level of automation.

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Abstract

The application discloses a kind of continuous rotary screen purification industrial water device and control method, belong to industrial water treatment technical field.Device includes shell, main water inlet valve, main water outlet valve, first bypass pipeline, second bypass pipeline, rotary screen, drive mechanism, blowdown main pipe, vice water outlet valve, blowdown branch pipeline, backwash blowdown valve and controller.Controller has filtration mode and backwash mode, and according to the pressure difference value of first pressure gauge set in water inlet pipe and second pressure gauge set in water outlet pipe, backwash mode is automatically started, and according to the water quality detected by water quality detection device set on blowdown branch pipeline, backwash mode is automatically terminated.The application realizes the control closed loop of backwash start and termination, and also ensures that backwash sewage and purified water are completely separated, with the advantages of continuous automatic operation and complete backwash.
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