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High flux rolled EDI assembly, assembly method thereof and desalting method

An assembly method and high-throughput technology, applied in separation methods, chemical instruments and methods, and general water supply conservation, etc., can solve problems such as component scrapping, water leakage of roll-type EDI components, and affecting the desalination effect of components, and achieve cost reduction and mitigation Scaling tendency, effect of reducing cost per ton of water

Active Publication Date: 2017-03-08
ZHEJIANG CATHAYRIPE ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct result of this difference is the water leakage of the coiled EDI module, and the flow of concentrated and fresh water inside the module, which seriously affects the desalination effect of the module, until the whole module is scrapped

Method used

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  • High flux rolled EDI assembly, assembly method thereof and desalting method
  • High flux rolled EDI assembly, assembly method thereof and desalting method
  • High flux rolled EDI assembly, assembly method thereof and desalting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] according to figure 1 , image 3 , Figure 4 As shown, a large-flux roll-type EDI assembly includes: a housing 1 and a membrane core 2. The housing 1 includes an outer shell 11, a sealing sleeve 12 and a cover plate 13. A sealing sleeve 12 and a cover plate 13 form a set Sealing structure, two ends of the outer shell 11 are respectively provided with a set of sealing structures, and the sealing sleeve 12 is arranged between the cover plate 13 and the end of the outer shell 11;

[0045] The membrane core 2 includes a core body 21 and an end cover 22. The core body 21 is set inside the outer shell 11, and the end cover 22 is sleeved inside the joint between the sealing sleeve 12 and the outer shell 11. The core body 21 includes seven sets of uniformly distributed The membrane unit 3.

[0046] A first sealing ring 14 is provided at the end of the sealing sleeve 12 and the outer shell 11 , a second sealing ring 15 is provided between the sealing sleeve 12 and the cover p...

Embodiment 2

[0051] The difference from the above-mentioned embodiment 1 is that, according to figure 2 As shown, the outer side of the core body 21 is covered with an anode cylinder 212, which can effectively ensure the stability of the anode electrification.

Embodiment 3

[0053] The method for assembling the large-volume roll-type EDI assembly of the above-mentioned embodiment 1 comprises the following steps:

[0054] A Assemble the membrane core 2, attach the positive membrane 31 and the negative membrane 32 to form the membrane unit 3, wind multiple sets of membrane units 3 onto the cathode column 211, and line the grid plate 52 between the membrane units 3 during winding, After the winding is completed, assemble the anode cylinder 212 to the outside of the core body 21;

[0055] B Assemble the shell, ① Put the membrane core 2 into the outer shell 11, and then insert the end cap 22 at both ends of the membrane core 2, the end cap 22 is partially inserted into the inside of the outer shell 11, and the two ends of the membrane core 2 are inserted into the end cap At 22 o'clock, put the fourth sealing ring 17 in the first outlet 42 and the cover plate 13; The end is equipped with a first sealing ring 14 and a second sealing ring 15; ③ buckle th...

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Abstract

The invention relates to the field of water treatment equipment, and in particular relates to a high flux rolled EDI assembly, an assembly method thereof and a desalting method. The high flux rolled EDI assembly comprises a casing and a membrane core, wherein the casing comprises a casing body, seal sleeves and cover plates, one seal sleeve and one cover plate form a seal structure, one seal structure is respectively arranged at each of the two ends of the casing body, and the seal sleeve is arranged between the cover plate and the end part of the casing body; the membrane core comprises a core body and an end cover, the core body is arranged in the casing body, and the end cover is arranged in the connection part between the seal sleeve and the casing body in a sleeved mode; and a first seal ring is arranged between the seal sleeve and the end part of the casing body, a second seal ring is arranged between the seal sleeve and the cover plate, and a third seal ring is arranged between the seal sleeve and the end cover.

Description

technical field [0001] The invention relates to the field of water treatment equipment, in particular to a large-flux roll-type EDI component, an assembly method and a desalination method thereof. Background technique [0002] At present, EDI electrostatic desalination devices mainly include plate EDI and coil EDI. The traditional roll-type EDI is mainly sealed through the top cover and bottom cover, and the standard flow rate of a single membrane module is 2m 3 About / h, under the same water discharge requirements, the installation and use occupy a large area, the space utilization rate is low, and the cost per ton of water is high. [0003] Compared with the traditional plate-and-frame EDI, the coil-type EDI has concentric electric field distribution, higher current efficiency, and lower power consumption; the design of the concentrated and fresh water flow patterns of the coil-type EDI is different from the same flow of the traditional plate-and-frame EDI Designed to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/48B01D63/00C02F1/469
CPCB01D61/48B01D63/00C02F1/4695Y02A20/131Y02A20/124
Inventor 李光辉吴建平梁红波
Owner ZHEJIANG CATHAYRIPE ENVIRONMENTAL ENG
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