Washing machine and control method for cleaning filtering assembly of washing machine

Abstract

The invention provides a washing machine and a control method for cleaning a filtering assembly of the washing machine. The washing machine comprises a circulating water filtering system, a flow measuring device and a control device; the circulating water filtering system is provided with the filtering assembly which is configured to be used for filtering water pumped from a washing cylinder of the washing machine to enable the water to be circulated to the washing cylinder to be reused in a clear water washing program of the washing machine; the flow measuring device is configured to be used for measuring the first produced water flow of the filtering assembly after the circulating water filtering system is started; the control device is configured to be used for judging whether the filtering assembly needs to be chemically cleaned or not according to the measured first produced water flow. According to the washing machine and the control method for cleaning the filtering assembly of the washing machine, whether the filtering assembly needs to be chemically cleaned or not can be judged according to the produced water flow of the filtering assembly, the cleaning pertinence and timeliness of the filtering assembly are effectively guaranteed, the phenomenon that ultrafiltration membrane damage is caused by the over large pressure due to the fact that too many pollutants are retained on an ultrafiltration membrane is avoided, and prolonging of the service life of the filtering assembly is facilitated.

Description

technical field [0001] The invention relates to a washing machine, in particular to a washing machine with a circulating water filtering system and a control method for cleaning a filter assembly of the washing machine. Background technique [0002] A laundry routine of conventional washing machines usually includes water intake, washing-spin-drying-drainage, multiple rinsing-spin-drying-drainage, etc., wherein washing and each rinse need to consume a large amount of clean water. The water used for washing or rinsing is discharged to the environment outside the washing machine through the drain pipe. The whole washing process consumes a lot of water, which greatly wastes water resources. [0003] In order to achieve the purpose of saving water, a circulating water filtration system can be used to filter the washing water and / or rinsing water of the washing machine for recycling. The circulating water filtration system used in the washing machine can adopt the method of fil...

AI Technical Summary

Problems solved by technology

However, with the increase in washing times of the washing machine, separated substances and some other impurities will gradually accumulate on the surface of the filter membrane, causing blockage and pollution of the filter membrane, which will greatly affect the filtering effect

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