Water purifying device, and self-cleaning filtering system and method

A self-cleaning filtration and water purification device technology, applied in chemical instruments and methods, filtration treatment, control/manipulation systems, etc., can solve problems such as membrane fouling effluent TDS value

Pending Publication Date: 2021-05-04
QINGDAO HAIER STRAUSS WATER EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The present invention aims at the above-mentioned problems existing in the prior art, and provides a self-cleaning filtration method and system to solve the technical problems of membrane pollution in the existing filtration system and high TDS value of the effluent after shutdown and restart

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  • Water purifying device, and self-cleaning filtering system and method
  • Water purifying device, and self-cleaning filtering system and method
  • Water purifying device, and self-cleaning filtering system and method

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Embodiment Construction

[0079]A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art will appreciate that these embodiments are intended to illustrate the technical principles of the present invention, and are not intended to limit the scope of the invention.

[0080]It should be noted that in the description of the present invention, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The term indicated or positional relationship is based on the direction or positional relationship shown in the drawings, which is merely intended to have a specific orientation, instead of indicating or implying that the device or component must have a specific orientation. Therefore, it is not understood to be the limitations of the present invention. Moreover, the term "first", "second", "third" is only used to describe purposes, and cannot be understood as an indication or implies rela...

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Abstract

The invention provides a water purifying device, and a self-cleaning filtering system and method. According to the invention, concentrated water is electrolyzed, acid water, alkaline water and pure water are simultaneously generated, the three kinds of water sequentially clean a RO membrane according to a set sequence (pure water is used finally), compared with physical cleaning, the efficiency is higher, chemical cleaning and physical cleaning are combined, the cleaning effect is better, acid and alkali residues are avoided, membrane pollution is reduced, the service life of the membrane is prolonged, and the water use safety can be ensured. Pure water generated by an electrodialysis cleaning unit is used for cleaning the RO membrane cleaned by acid water and alkaline water, so that residual acid and alkali are removed, concentrated water on the raw water side can be replaced, ions in the concentrated water are prevented from passing through the membrane, and the problem of high TDS value of effluent caused by shutdown and restart of the water purifying device is solved; and the production of wastewater can be effectively reduced.

Description

Technical field[0001]The present invention belongs to the field of water purification, and in particular to a water purification device, self-cleaning filtration system and method.Background technique[0002]With the increasing environmental pollution and the improvement of people's health awareness, water purification equipment has been widely used in people's daily lives. The water is generally purified by the reverse osmosis filter or ultrafiltration core.[0003]Reverse osmosis techniques perform raw water filtration, and the particle size of less than 1 μm is less than 1 μm, including humic acid, sulfide, silica gel, etc., which will be stacked due to the more difficult PP cotton and activated carbon filtration in the upstream. Reverse Osmosis (RO) film-RO film surface causes membrane hole clogging; in addition, the inorganic salt, salt comprising calcium magnesium plasma is also trapped by the RO film and clogged within the membrane hole, and add high pressure to the original wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06
CPCC02F9/00C02F1/001C02F1/283C02F1/441C02F1/444C02F1/4693C02F1/008C02F2201/46115C02F2201/4612C02F2303/14C02F2209/00C02F2209/44
Inventor 崔登凯刘青杨磊宫钦玉
Owner QINGDAO HAIER STRAUSS WATER EQUIP CO LTD
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