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Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device

A reverse osmosis membrane and evaluation device technology, which is applied in the field of water treatment, can solve the problems of different pollution levels, reverse osmosis membrane performance degradation, and the inability to completely remove compound pollution, etc., to achieve recovery performance, high-efficiency membrane performance, and recovery membrane performance Effect

Active Publication Date: 2015-04-08
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the extension of the operation cycle, the decline of membrane performance, the formation and aggravation of complex pollution, conventional online cleaning can no longer recover, and the pollution degree of each membrane element of a single set of reverse osmosis is different. With conventional online cleaning, due to the cleaning method and flow rate , Insufficient strength of the agent and uneven distribution of cleaning, it has been impossible to completely remove such serious compound pollution, resulting in a significant decline in the performance of the reverse osmosis membrane

Method used

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  • Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device
  • Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device

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Embodiment

[0069] figure 1 It is a schematic structural diagram of the off-line cleaning and evaluation device for reverse osmosis membrane elements of the present invention. An off-line cleaning and evaluation device for reverse osmosis membrane elements, including a cleaning water tank, a test water tank, and a reverse osmosis cleaning detection device, characterized in that: the cleaning water tank includes a pickling water tank 2 and an alkali cleaning water tank 3, and the pickling water tank 2 and the alkali cleaning water tank 3 and the entrance of test water tank 1 are respectively equipped with pickling pump 7, alkali washing pump 6 and high-pressure pump 4, and the upper ends of pickling water tank 2, alkali washing water tank 3 and test water tank 1 are respectively equipped with pH / temperature instruments, and steam heating is reserved Tube holes; the reverse osmosis cleaning detection device includes a pressure vessel 12, a valve, a control box, an electrical control mechani...

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Abstract

The invention discloses an offline cleaning and evaluating device of a reverse osmosis membrane element and an application method of the device, belonging to the technical field of water treatment. The method can be used for evaluating the performance of the reverse osmosis membrane element, typically selecting cleaning agents according to the pollutant ingredients and contents and cleaning a single reverse osmosis membrane element in off-line multi-angle and multilevel manner by means of such operations as washing by a large amount of water, reverse washing, positive washing and soaking, and in the cleaning process, the method can be used for monitoring the performance of the reverse osmosis membrane element and controlling such factors as cleaning flow rate, pressure, cleaning time and temperature, so as to improve a cleaning effect. The offline cleaning and evaluating device disclosed by the invention can be also used for evaluating and testing the performance of the agents and the reverse osmosis membrane by simulating the onsite operation conditions.

Description

technical field [0001] The invention relates to an off-line cleaning and evaluation device for a reverse osmosis membrane element and a use method thereof, belonging to the field of water treatment. Background technique [0002] Reverse osmosis technology began to be studied in the 1950s. By the end of the 1960s, reverse osmosis membranes with industrial value were produced. In 1971, industrial reverse osmosis devices were put into operation in power plants. Now reverse osmosis is used for water treatment throughout the United States and Japan. , France, Italy and other countries. my country began to introduce reverse osmosis devices in the water treatment of power plants in the late 1970s. In the 1990s, the development of reverse osmosis membranes became a hot spot. Now reverse osmosis technology is mainly used in seawater desalination, pure water and ultrapure water preparation, urban water supply treatment, Urban sewage treatment, steel industry wastewater treatment, chem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/02B01D65/10
Inventor 贺占超赵瑞峰杨艾花王瑞红
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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