Anti-leakage electrodialysis water distribution runner and partition plate thereof

Abstract

The invention discloses an anti-leakage electrodialysis water distribution flow channel and a partition plate thereof, and belongs to the technical field of electrodialysis. The anti-leakage electrodialysis water distribution flow channel comprises a support layer, a first sealing layer and a second sealing layer, wherein at least one first sealing layer and at least one second sealing layer are compounded on two surfaces of the support layer in the thickness direction respectively. A plurality of water flow channels are formed in the supporting layer, the side wall of the supporting layer extends outwards to form a first extending part, the thickness of the first extending part is 0.3 to 0.7 time that of the supporting layer, the shortest distance between every two adjacent water flow channels is D; when the sections of the water flow channels are round, the diameter of each water flow channel is d, and when the sections of the water flow channels are elliptical in shape, the long axis of the water flow channel is d, when the sections of the water flow channel are regular polygons, the diameter of the inscribed circle of the water flow channel is d, and D and d meet the followingformula: 0.5 <= d / D <= 2. The anti-leakage electrodialysis water distribution flow channel and the partition plate thereof are good in sealing performance.

Description

technical field [0001] The invention belongs to the technical field of electrodialysis, and in particular relates to an anti-leakage electrodialysis water distribution channel and a partition plate thereof. Background technique [0002] The method of using the selective permeability of semipermeable membrane to separate different solute particles is called dialysis. When dialysis is carried out under the action of an electric field, the phenomenon that the charged solute particles in the solution migrate through the membrane is called electrodialysis. The technology of using electrodialysis to purify and separate substances is called electrodialysis. It is a new technology developed in the 1950s. It was originally used for seawater desalination and is now widely used in chemical industry, light industry, metallurgy, papermaking, and medicine. Industry, especially the preparation of pure water and the treatment of the three wastes in environmental protection, such as acid an...

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Problems solved by technology

[0003] The separator is an important structure in the electrodialysis technology. In the prior art, the electrodialysis water distribution channel and the plate frame are integrally formed. The water flow channel can only be set on the surface of the electrodialysis water distribution channel. It is easy to cause collapse under pressure, and the water distribution channel Most of them have a single-layer structure, and the water flow channel is easily deformed, poorly sealed, and prone to leakage; the water flow channel set on the surface of the electrodialysis cloth water flow channel is too long to easily cause the membrane to be embedded in the water flow channel, causing blockage problems

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