Filters and washing machines with circulating water filtration systems

Abstract

The invention provides a filter and a washing machine with a circulating water filtering system. The filter of the present invention includes a housing and a filter screen arranged in the housing, the filter screen separates the inner chamber of the housing into a water inlet chamber and a water filter chamber, and the filter also includes a fluid The non-return member is arranged on the water inlet of the water inlet chamber and is used to open or close the water inlet. The filter of the present invention can open / close the water inlet of the filter according to the working process by setting the fluid non-return member, so as to prevent the backflow of dirty water. The filter of the present invention is particularly suitable for filtering washing water and / or rinsing water in a washing machine with a circulating water filtering system.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a filter suitable for a circulating water filtering system and a washing machine with a circulating water filtering system. Background technique [0002] The working process of conventional washing machines usually includes water intake, washing-spin-drying-drainage, multiple rinsing-spin-drying-drainage, etc., wherein each rinse needs to consume a large amount of clean water. Generally speaking, the water consumption of the entire working process of the existing pulsator washing machine can reach 20-30 liters per kilogram of clothing, while the water consumption of the entire working process of the existing drum washing machine can also reach 12 liters of water per kilogram of clothing. That is to say, when the existing conventional washing machine (regardless of the pulsator washing machine or the drum washing machine, and no matter whether it is a semi-automatic washing machin...

AI Technical Summary

Problems solved by technology

However, because the rinsing water has many impurities and the water quality is unstable, the solution 1 cannot really solve the water quality problem of the rinsing water

Moreover, this solution usually requires manual cleaning of the water storage tank and filter screen, which is inconvenient for maintenance

[0009] Option 2 uses a reverse osmosis filter to purify laundry wastewater, which not only requires the use of a high-pressure pump, but also has a slow purification rate, and the water output is difficult to meet the normal use requirements of the washing machine

In addition, this solution requires regular replacement of the reverse osmosis filter, which is costly

[0010] Option 3 uses large-scale water treatment devices and auxiliary equipment such as ozone generators to purify laundry wastewater. These auxiliary equipment are not only expensive in themselves, occupy a large space, but also require many supporting devices and related cleaning devices, further greatly increasing equipment costs and maintenance. cost, totally unsuitable for ordinary household use

[0011] It can be seen that in the washing machines of the prior art which themselves have a circulating water filtration system, such as the washing machines according to the aforementioned schemes 1 and 2, the filter components (filters, reverse osmosis filters) used in them are common in the field of water treatment technology Yes, when assembling to the washing machine, the structure and pipeline setting characteristics of the washing machine itself were not considered

Moreover, the filter assembly itself in the existing washing machine does not have a non-return component, so it is easy to make the water in the filter assembly flow back into the washing tub

In addition, the filter assembly will be contaminated during filtration, resulting in a gradual decline in the filtration flux with the running time. Since the existing filter assembly used in the washing machine cannot be cleaned without disassembly, it is troublesome or requires a lot of cleaning. Frequent replacement, short service life

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