Water purification machine with pure water reflux unit

A technology of reflux device and water purifier, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., and can solve the problems of substandard initial water quality

Inactive Publication Date: 2015-12-16
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water purifier with a pure water backflow device to solve the problem that the water quality of the initial produced water does not meet the standard when the water purifier in the prior art stops producing water for a period of time and then produces water

Method used

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  • Water purification machine with pure water reflux unit

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] For the specific implementation of this program, please refer to the attached figure 1 As shown, the tap water passes through three-way ball valve 1, PP cotton filter element 2, low pressure switch 3, granular carbon filter element 4, carbon rod filter element 5, water inlet solenoid valve 6, regulator pump 7, reverse osmosis membrane filter device 8 (RO Membrane filtration device), check valve 9, waste water ratio solenoid valve 10, high pressure switch 11, pressure tank 12, post filter device 13, water outlet solenoid valve, water purification and water outlet equipment 14.

[0022] The pretreatment unit includes a PP cotton filter element 2, a low pressure switch 3, a granular carbon...

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Abstract

The invention provides a water purification machine with a pure water reflux unit, which comprises a pretreatment unit, a reverse osmosis membrane filter unit, a postpositive filter unit and a pure water reflux unit, wherein the front end of the pretreatment unit is connected with a tap water port; the front end of the reverse osmosis membrane filter unit is connected with the back end of the pretreatment unit, and the back end is divided into a pure water end outlet and a concentrated water end outlet; the front end of the postpositive filter unit is connected with a pure water end outlet of the reverse osmosis membrane filter unit, and the back end is connected with a pure water outlet device; and the pure water reflux unit is respectively connected with the back end of the postpositive filter unit and the front end of the reverse osmosis membrane filter unit. According to the technical scheme of the invention, the pure water reflux unit can enable the produced water in the initial stage to flow through the postpositive filter unit and reflux into the reverse osmosis membrane for retreatment, so that the initial produced water can reach the sanitary standard, and can be drunk safely by the user.

Description

technical field [0001] The invention relates to the field of water purification equipment, in particular to a water purifier with a pure water backflow device. Background technique [0002] A reverse osmosis water purifier generally has a reverse osmosis membrane pre-filter, a water pump, and a reverse osmosis membrane filter. Raw water will be divided into purified water and concentrated water after passing through the reverse osmosis membrane filter. Reverse osmosis water purifiers generally have a pressure tank and a post-filter. [0003] The purified water produced by the reverse osmosis water purifier meets the water quality standards stipulated by the Ministry of Health and can be directly drunk. However, when the used water purifier is used after stopping water production for a long time, the post filter device (rear composite filter element / rear carbon rod / rear activated carbon) will make the TDS value of the water outlet end due to the principle of static osmosis ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02
Inventor 张细燕杨勇张慧茹胡进华
Owner GREE ELECTRIC APPLIANCES INC
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