Reverse cleaning filter

Abstract

The invention relates to a reverse cleaning filter. The reverse cleaning filter comprises a filter body; the upper end of the filter body is provided with an electric power motor; a coarse filter screen and a fine filter screen are arranged in the filter body; a flexible plate is arranged between the coarse filter screen and the fine filter screen; the flexible plate is arranged on the inner wall of the filter body; the upper side of the fine filter screen is provided with a fixed plate; a rotating rod penetrates the fixed plate; the rotating rod is driven by the electric power motor to rotate; each side of the outer wall surface of a section of rotating rod which extends into the fine filter screen is provided with a row of bristles; the inner wall of the fine filter screen can be cleaned through he bristles under the action of the rotating rod; impurities after cleaning are discharged through a waste discharge valve; an exhaust valve is arranged on the outer wall surface of the filter body; the filter body is provided with a differential pressure transmitter which is connected with a controller; the controller is used for controlling the starting and stopping of the electric power motor. According to the reverse cleaning filter, the automatic reverse washing can be implemented, the washing time is short, the working efficiency is high, and the filtration performance is good.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a backwash filter. Background technique [0002] The existing ordinary water filter does not have the backwashing function. After a period of filtering work, the particles in the water adhere to the filter screen, and the filter needs to be stopped to clean or replace it, which affects the continuity and efficiency of the system. [0003] At present, there is a fully automatic cleaning filter on the market, but this filter has a small dirt holding capacity and is easily blocked by dirt. The filter part needs to be disassembled and the filter status cannot be monitored. Contents of the invention [0004] In order to overcome the deficiencies in the prior art, the present invention provides a backwash filter. [0005] The present invention is realized through the following technical solutions: [0006] A backwash filter, comprising a cylindrical filter body, the lower end of th...

AI Technical Summary

Problems solved by technology

[0002] The existing ordinary water filter does not have the function of backwashing. After a period of filtering work, the particles in the water adhere to the filter screen, and the filter needs to be stopped to clean or replace the filter screen, which affects the continuity and efficiency of the system.

[0003] At present, there is a fully automatic cleaning filter on the market, but this kind of filter has a small dirt holding capacity and is easily blocked by dirt. The filter part needs to be disassembled and the filter status cannot be monitored.

Images