Anti-scaling electrodeionization device in concentrated water distribution design and electrodeionization method

An electric desalination and anti-scaling technology, which is applied in the field of electric desalters, can solve the problems of easy formation of scaling, too long concentrated water flow path, and long residence time of ions, so as to achieve the goal of not easy to scale, increase the residence time, The effect of improving processing efficiency

Active Publication Date: 2013-08-21
ZHEJIANG THINK ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this utility model has the advantages of simple structure, small flow channel resistance, and convenient replacement of ion exchange resin, etc., the structure design of the overall electric desalter makes the concentrated water flow channel too long, Ca 2+ , Mg 2+ ions and

Method used

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  • Anti-scaling electrodeionization device in concentrated water distribution design and electrodeionization method
  • Anti-scaling electrodeionization device in concentrated water distribution design and electrodeionization method
  • Anti-scaling electrodeionization device in concentrated water distribution design and electrodeionization method

Examples

Experimental program
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Example Embodiment

[0033] Example 1:

[0034] as attached figure 1 The anti-scaling electrostatic desalter with concentrated water diversion design shown includes an anion-cation exchange membrane, a concentrated water chamber 2, a fresh water chamber 3, and the main components of the electric desalter with positive and negative electrodes, and each fresh water chamber is filled There are ion exchange resins. Concentrated water diversion structure 8 consists of the concentrated water inlet 4 arranged in the middle of the side surface of the main body of the electric demineralizer, the concentrated water outlet 5 arranged on the upper and lower ends of the main body of the electric demineralizer, and the concentrated water in the concentrated water chamber. The isolation layer 6 is composed.

[0035] The concentrated water chamber includes a central concentrated water pipe 21 located at the center of the cross-sectional circle. The anion-cation exchange membrane and the mesh partitions located...

Example Embodiment

[0041] Example 2:

[0042] The anti-scaling electric desalter designed for concentrated water distribution in this embodiment includes an anion-cation exchange membrane, a concentrated water chamber 2, a fresh water chamber 3, and the main components of the electric desalter with positive and negative electrodes, and in each fresh water chamber Filled with ion exchange resin. The concentrated water diversion structure consists of the concentrated water inlet 4 arranged in the middle of the side surface of the main component of the electrostatic demineralizer, the concentrated water outlet 5 arranged on the upper and lower ends of the main component of the electrostatic demineralizer, and the concentrated water outlet installed in the concentrated water chamber. The isolation layer 6 is composed. The central concentrated water pipe 21 doubles as the cathode, and the metal casing 1 wrapped outside the cylinder serves as the anode.

[0043] The anion and cation exchange membr...

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Abstract

The invention relates to an electrodeionization device, and in particular relates to an anti-scaling electrodeionization device in a concentrated water distribution design and an electrodeionization method. The anti-scaling electrodeionization device comprises an electrodeionization device main body component, wherein the electrodeionization device main body component comprises a negative and positive ion exchange membrane, a concentrated water chamber, a fresh water chamber and positive and negative electrodes; and ion exchange resin is filled into the fresh water chamber. The anti-scaling electrodeionization device further comprises a concentrated water shunting distribution structure, wherein the concentrated water shunting distribution structure consists of a concentrated water inlet which is formed in the middle of the outer side surface of the electrodeionization device main body component, concentrated water outlets which are formed in the upper and lower end faces of the concentrated water chamber, and an isolation layer which is arranged in the concentrated water chamber. When the anti-scaling electrodeionization device is operated, negative and positive scaling ions which are transferred from fresh water into the concentrated water are separated from each other to flow through the concentrated water shunting distribution structure, a concentrated water path is shortened, and the time for hardness ions to stay in the component is shortened.

Description

technical field [0001] The invention relates to an electric desalter, in particular to an anti-scaling electric desalter designed for diversion of concentrated water. Background technique [0002] Among the existing water treatment methods for desalination and purification of industrial water, the more advanced method is to combine electrodialysis technology and ion exchange technology to produce ultrapure water, that is, electro-demineralization (EDI). The process of electrostatic desalination is to make the ions contained in the liquid migrate directionally under the action of a direct current electric field and an electroactive medium. to another solution, so as to achieve the membrane separation process for the purpose of desalination. In EDI components, the sequence of extraction for the various ions is different. The first is the extraction of high-priced ions, followed by the extraction of low-priced and easy-to-extract ions, and finally weakly ionized ions, hydroge...

Claims

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Application Information

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IPC IPC(8): C02F1/469C02F1/42
Inventor 张荣强顾翀翀
Owner ZHEJIANG THINK ENERGY TECH
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