Washing machine and washing control method

Abstract

The invention relates to a washing machine and a washing control method. A draining port and a water inlet are formed in a washing barrel and are communicated through a circulating pipe, a pre-filtering module and a fine filtering module are connected to the circulating pipe, the fine filtering module is provided with a first water outlet and a second water outlet, filtered liquid in the fine filtering module is drained from the first water outlet, the fine filtering module is connected with the water inlet of the washing barrel, and non-filtered liquid is drained out of the second water outlet and returns to the fine filtering module. The recovered water purifying efficiency can be improved while the layout structure of the washing machine is optimized, drained water of the washing machine can be filtered by the filtering modules in the purifying process by utilizing a high-speed cross flow filtration principle, the pollution speed of a filtering membrane is reduced, flux of the filtering membrane is improved, and the service life of the filtering membrane is prolonged.

Description

technical field [0001] The invention relates to laundry technology, in particular to a washing machine and a laundry control method thereof. Background technique [0002] Traditional washing machines wash clothes with water. After washing, all the washing water is discharged, and then re-injected with clean water to rinse the clothes. After each rinse, the rinse water is also drained and then injected with clean water. The entire washing process consumes a lot of water. , a serious waste. [0003] At present, in the technical field of washing machines, various methods are used to improve the purification degree of recycled water. For example, large-scale water treatment devices, ozone generators, electrolysis and other auxiliary equipment are used to purify and utilize laundry water. This method takes up a large layout Space, and the cost of water treatment is higher. In addition, the lint collection filter bag is used in the pulsator washing machine, and the lint is manua...

AI Technical Summary

Problems solved by technology

[0002] Traditional washing machines wash clothes with water. After washing, all the washing water is discharged, and then re-injected with clean water to rinse the clothes. After each rinse, the rinse water is also drained and then injected with clean water. The entire washing process consumes a lot of water. , serious waste

[0003] At present, in the technical field of washing machines, various methods are used to improve the purification degree of recycled water. For example, large-scale water treatment devices, ozone generators, electrolysis and other auxiliary equipment are used to purify and utilize laundry water. This method takes up a large layout space, and the cost of water treatment is higher

In addition, the lint collection filter bag is used in the pulsator washing machine to manually clean the lint. In the drum washing machine, the drain pump head is used to trap large lint and the laundry water is discharged. This method has a poor filtering effect and basically does not retain lint.

There is also the use of reverse osmosis filters to purify wastewater. This method requires the use of high-pressure pumps, and the rate of purification of water production is slow. The amount of water cannot meet the needs of washing machines, and the cost is high.

[0004] Secondly, when the purification device filters the lint and sludge colloids in the discharged water, the filtered dirt will pollute the filter medium. Since the washing machine is inconvenient to use chemical cleaning of the filter medium, it will accumulate on the surface of the filter medium for a long time A filter cake will be formed, which will cause relatively large fouling to the filter medium

Therefore, in the process of purifying the discharged water, how to reduce the pollution of the filter medium by dirt is very important, and the artificial cleaning of the filter medium not only brings inconvenience to life, but also reduces the practical value and market value of the washing machine.

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