Differential-pressure swirl-type backwashing filtration system

Abstract

A differential-pressure swirl-type backwashing filtration system. An indexing mechanism and a transmission mechanism are disposed on the top of a filter cylinder body; the internal cylinder body is divided into a water-inlet chamber and a water-outlet chamber by a clapboard; eight filter cores are disposed in the water-outlet chamber and are distributed uniformly and circumferentially; a water inlet is disposed along a tangent of the cylinder wall of the water-outlet chamber; a sewage draining exit and a dirt discharging exit are disposed in the water-inlet chamber; a sucking disc is disposed between the dirt discharging exit and the clapboard, and is driven to rotate by a transmission shaft of the transmission mechanism. The device adopts eight groups of filter core structures, and by using the hydrodynamics principle, the device has the advantages of less no-load pressure loss, less backwashing water consumption, good filtering effect, compact structure, and reliable operation, and can perform backwashing under low differential pressure.

Description

Technical field: [0001] The invention relates to sewage treatment equipment, in particular to a differential pressure, swirl type backwash filter system. Background technique: [0002] Water with impurities needs to be filtered with a filter before being sent to the water supply system. The filter commonly used at present is that filter is installed in the tank body that has water inlet pipe and water outlet pipe. When the water introduced by the water inlet pipe enters the filter tank body, after being filtered by the filter, it flows out from the outlet of the filter. During the working process of the filter, certain dirt must adhere to the filter screen of the filter, thereby reducing the filtering effect. At this time, it is necessary to adopt the method of backwashing to regenerate the filter material. The backwashing filter that people often use now has the following defects: 1. When the sewage enters the filter cylinder, heavy particles are easy to damage the sewage...

AI Technical Summary

Problems solved by technology

During the working process of the filter, certain dirt must adhere to the filter screen of the filter, which will reduce the filtering effect.

At this time, it is necessary to adopt the method of backwashing to regenerate the filter material. The backwashing filters that people often use now have the following defects: 1. When the sewage enters the filter cylinder, heavy particles are easy to damage the sewage pipe, reducing the damage of the sewage pipe. service life

2. The pressure bearing capacity of the filter element is small, so it is impossible to clean the filter element thoroughly

3. The no-load resistance is large, and the amount of water for backwashing is large, which cannot guarantee the smooth flow of water

4. Complex structure and large footprint

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