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Method for preventing fouling of wastewater flow-limiting device of water purifier and water purifier

A technology of a current limiting device and a water purification device, which is applied in the field of water treatment, can solve problems such as the inability to effectively solve the waste water ratio blocking in the water purifier, and achieve the effect of not damaging the service life and slowing down the waste water ratio blocking.

Inactive Publication Date: 2019-09-27
TIANJIN BISHUIYUAN MEMBRANE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a method for preventing the fouling of the waste water flow limiting device of the water purifier, so as to solve the problem that the waste water in the water purifier cannot be effectively solved in the prior art. The method of fouling of the waste water flow limiting device, after the water purification treatment, adds the operation of filtration treatment and antiscaling treatment before the waste water flow limiting device, which can effectively intercept the particulate impurities washed out from the concentrated water side of the reverse osmosis or nanofiltration filter element, To prevent particulate impurities from rushing into the flow limiting device (waste water ratio, waste water valve) to cause fouling

Method used

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  • Method for preventing fouling of wastewater flow-limiting device of water purifier and water purifier
  • Method for preventing fouling of wastewater flow-limiting device of water purifier and water purifier

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Embodiment 1

[0059] The water purifier provided in this embodiment includes a water inlet valve, a water purification device, a first one-way valve, a filter device, a scale prevention device, a waste water ratio device and a second one-way valve connected in sequence.

[0060] Among them, the water inlet valve is connected to the tap water pipeline; the water purification device is a reverse osmosis water purification device, and the filter device is built with pp cotton and activated carbon; the scale inhibition device is a polycarboxylic acid scale inhibition dispersant.

[0061] After using the water purifier, after the tap water is pre-filtered, after entering the water through the water inlet valve, the water purification device purifies the water quality to obtain purified water, and the remaining waste water passes through the first one-way valve, and then passes through post-filtering and Anti-scaling filter treatment.

Embodiment 2

[0063] The water purifier provided in this embodiment includes a water inlet valve, a water purification device, a first one-way valve, a filter device, a scale prevention device, a waste water valve device and a second one-way valve connected in sequence.

[0064] Among them, the water inlet valve is connected to the tap water pipeline; the water purification device is a reverse osmosis water purification device, and the filter device has a built-in ultra-micro filter element; the scale inhibition device is RO scale inhibitor.

[0065] After using the water purifier, after the tap water is pre-filtered, after entering the water through the water inlet valve, the water purification device purifies the water quality to obtain purified water, and the remaining waste water passes through the first one-way valve, and then passes through post-filtering and Anti-scaling filter treatment.

Embodiment 3

[0067] The water purifier provided in this embodiment includes a water inlet valve, a water purification device, a first one-way valve, a filter device, a scale prevention device, a waste water ratio device and a second one-way valve connected in sequence.

[0068] Among them, the water inlet valve is connected to the tap water pipeline; the water purification device is a reverse osmosis water purification device, and the filter device has a built-in microfiltration filter element; the scale inhibition device is RO scale inhibitor.

[0069] After using the water purifier, after the tap water is pre-filtered, after entering the water through the water inlet valve, the water purification device purifies the water quality to obtain purified water, and the remaining waste water passes through the first one-way valve, and then passes through post-filtering and Anti-scaling filter treatment.

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Abstract

The invention discloses a method for preventing fouling of a wastewater flow-limiting device of a water purifier and the water purifier, and belongs to the technical field of sewage purification equipment. The method comprises the following steps: purifying water entering the water purifier to obtain purified water and wastewater, performing post-filtration treatment and scale inhibition treatment on the wastewater, and then enabling the treated wastewater to pass through the wastewater flow-limiting device. The operations of filtration treatment and scale inhibition treatment are added before the wastewater passing through the wastewater flow-limiting device, so that particle impurities flushed out from the concentrated water side of a reverse osmosis or nanofiltration filter element can be effectively intercepted, thereby preventing the particle impurities from being flushed to the flow-limiting device (a wastewater ratio or wastewater valve) to cause fouling. The water purifier provided by the invention not only reduces the situation of the fouling of the wastewater ratio valve, but also does not reduce the user experience, and the service life of the membrane filter element is not damaged; compared with frequent replacement of the filter element, the realization of the water purifier is easy,, and the use cost of the water purifier is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a method for preventing fouling of a waste water flow limiting device of a water purifier and a water purifier. Background technique [0002] The waste water ratio (or waste water valve) fouling in the water purifier is a problem that often occurs during the use of the water purifier. After the waste water is fouled, the recovery rate of the reverse osmosis or nanofiltration membrane in the reverse osmosis or nanofiltration water purifier is very low. Running under high conditions or dead-end filtration, the performance of the filter element will decay rapidly, the water flow rate of the water purifier will decrease rapidly, and the quality of the effluent water will also deteriorate, which will eventually cause the water purifier to be unusable, and the actual service life of the membrane filter element will be far lower than that of the enterprise. Claimed lifespan. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/02
CPCC02F1/001C02F1/283C02F1/441C02F1/444C02F5/00C02F5/10C02F9/00C02F2103/02C02F2307/10
Inventor 陈亦力曹敬灿彭文娟刘亚男
Owner TIANJIN BISHUIYUAN MEMBRANE MATERIAL CO LTD
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