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A reverse osmosis membrane flushing system, water purifier and control method thereof

A technology of reverse osmosis membrane and flushing system, which is applied in the field of water purification, can solve the problem of high TDS value on the produced water side, and achieve the effects of delaying membrane fouling and prolonging membrane life

Active Publication Date: 2019-12-20
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the reverse osmosis membrane system in the prior art tends to cause relatively high TDS values ​​on the product water side after a period of shutdown.

Method used

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  • A reverse osmosis membrane flushing system, water purifier and control method thereof
  • A reverse osmosis membrane flushing system, water purifier and control method thereof
  • A reverse osmosis membrane flushing system, water purifier and control method thereof

Examples

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Embodiment 1

[0050] This embodiment provides a reverse osmosis membrane flushing system, such asfigure 1 shown, including:

[0051] A reverse osmosis membrane filter element 1, which includes: a water inlet 3 connected to a water inlet pipe; a clean water outlet 4 for clean water to flow out; and a concentrated water outlet 5 for concentrated water to flow out;

[0052] The flushing device 2 communicates with the clean water port 4, and the flushing water in it can be pressurized and enters the reverse osmosis membrane filter element 1 through the clean water port 4, so that the flushing water permeates to the concentrated water side to The concentrated water on the concentrated water side is replaced and the replaced concentrated water is discharged from the concentrated water port 5 .

[0053] In this embodiment, the flushing device 2 is a pressure tank.

[0054] In the above-mentioned reverse osmosis membrane flushing system, a water inlet 3, a clean water port 4 and a concentrated wat...

Embodiment 2

[0065] This embodiment provides a water purifier, such as figure 2 As shown, the reverse osmosis membrane flushing system in Example 1 is included. By adopting the reverse osmosis membrane flushing system in Example 1, the problem of high TDS value on the produced water side after the water purifier stops producing water for a period of time can be solved.

[0066] In order to improve the water purification effect, it also includes several pre-stage purification modules 19, which are arranged on the water inlet pipe, to carry out pre-stage purification to the water in the water inlet pipe; several post-stage purification modules 20, which are arranged on the water purification On the pipe 6, to carry out post-stage purification to the water in the water purification pipe 6.

[0067] Further, a decompression valve 21 is included, which is arranged on it away from the pre-purification module 19 and close to the water inlet end of the water inlet pipe;

[0068] The first high-...

Embodiment 3

[0077] This embodiment provides a control method for the reverse osmosis membrane flushing system in Embodiment 1, such as image 3 shown, including the following steps:

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Abstract

The invention provides a reverse osmosis membrane washing system, a water purifier and a control method of the reverse osmosis membrane washing system. The reverse osmosis membrane washing system comprises a water inlet connected to a water inlet pipe, a water purifying port used for enabling the purified water to flow out, a concentrated water port used for the enabling concentrated water to flow out, and a washing device communicated with the water purifying port; a certain pressure in the washing device is kept, so that washing water in the washing device can enter into a reverse osmosis membrane filter element through the water purifying port after being pressurized, and the washing water can permeate to a side of concentrated water to replace the concentrated water in the side of concentrated water and discharge the replaced concentrated water from the concentrated water port, the concentration of salt ions at the side of concentrated water is reduced, and the problem that TSD value at the side of water production is easy to cause after the reverse osmosis membrane system is stopped for a period of time is solved.

Description

technical field [0001] The invention belongs to the technical field of water purification, and in particular relates to a reverse osmosis membrane flushing system, a water purifier and a control method thereof. Background technique [0002] Reverse osmosis is to pressurize the concentrated water side, so that the water molecules in the concentrated water side enter the product water side through the reverse osmosis membrane to produce pure water, and at the same time, various impurities and harmful substances that cannot penetrate the reverse osmosis membrane are concentrated waste water discharge. [0003] At present, reverse osmosis technology has been widely used in water purification and other fields, and one of the more typical fields is water purifiers. One of the leading development directions of today's water purifiers is to adopt a large-flux tankless reverse osmosis membrane system, because the reverse osmosis membrane system has fast water discharge, no water sto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/02C02F9/02
CPCB01D65/02B01D2321/02B01D2321/04B01D2321/40C02F1/001C02F1/281C02F1/441C02F1/444C02F9/00C02F2301/08C02F2303/14
Inventor 秦利利李一然张细燕胡进华许鹏周栋周曌杨勇
Owner GREE ELECTRIC APPLIANCES INC
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