CN202220092U

CN202220092U - Double water purification EDI (electrodeionization) device

Info

Publication number: CN202220092U
Application number: CN201120292770XU
Authority: CN
Inventors: 高锐涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2012-05-16
Anticipated expiration: 2021-08-12

Abstract

The utility model discloses a double water purification EDI (electrodeionization) device, which mainly comprises a diaphragm stack and electrode frames for clamping mounting the diaphragm stack. A positive electrode plate and a negative electrode plate are arranged between the electrode frames and adjacent to the opposite electrode frames. The diaphragm stack comprises concentrated water chamber partition boards, a clear water chamber partition board, a negative ion exchange diaphragm and a positive ion exchange diaphragm, wherein the concentrated water chamber partition board and the clear water chamber partition board are arranged alternately, and the negative ion exchange diaphragm and the positive ion exchange diaphragm are attached to two sides of the clear water chamber partition board. One electrode frame is provided with a concentrated water chamber water inlet, a clear water chamber water inlet and a pole chamber water inlet, and the other electrode frame is provided with a concentrated water chamber water outlet, a clear water chamber water outlet and a pole chamber water outlet. A plurality of clear water chamber water outlets corresponding to the clear water chamber water inlet are arranged on the other electrode frame, so that internal water resistance is reduced effectively for the water electrodeionization device, water treatment is more thorough, and higher-quality purified water can be obtained. The double water purification EDI is used in the field of water treatment.

Description

A kind of pair of pure water EDI electric deionizer

Technical field

The utility model relates to a kind of water treatment device, particularly relates to a kind of electric deionizer.

Background technology

Electrodeionization is claimed packed-bed electrodialysis EDI or CDI again, a kind of water technology that between the barrier film of electrodialyzer, loads anion-cation exchange resin exactly, electrodialysis and IX are organically combined.It is considered to water-treatment technology field and has one of technology of revolutionary innovation.

Electrodeionization is to have combined electrodialysis and two technology of IX characteristics and new technology growing up separately; Compare with the common electrical dialysis; Owing to filled ion exchange resin in the light chamber, improved intermembranous electroconductibility greatly, significantly strengthened by the ion migration of solution to face; Destroy the poor phenomenon of ion in the face concentration retention layer, improved limit current density; Compare with the conventional ion exchange; Because intermembranous high electrical potential gradient, forcing water decomposition is hydrogen ion and hydroxide ion, and hydrogen ion and hydroxide ion are participated in load current on the one hand; Can play in-place regeneration to resin again on the other hand; Therefore EDI need not regenerate to resin, can save the necessary soda acid basin of IX, has reduced environmental pollution yet.

Electric deionizer in the past is folded in two electrode frame that positive and negative electrode is installed the membrane stack of forming and constitutes through will organize film more; And light chamber dividing plate intake-outlet, the dense chamber dividing plate intake-outlet that communicates with dense chamber dividing plate and the utmost point chamber dividing plate intake-outlet that communicates with light chamber dividing plate is set on two electrode of opposite frames respectively, obtain the pure water of better quality through the composition form of one section of one-level, one-level multistage or multistage multistage.

But this electric deionizer in the past is because the corresponding water outlet of water-in, causes the water flow inside dynamic resistance big and be prone to leak, and has simultaneously to produce the shortcoming that discharge is little, produce the big and current skewness of water back pressure, water quality instability etc.

The utility model content

For addressing the above problem, the utility model provides a kind of internal drag littler electric deionizer.

The utility model solves the technical scheme that its technical problem adopted:

A kind of pair of pure water EDI electric deionizer; Mainly comprise membrane stack and be used to clamp the electrode frame that membrane stack is installed; Adjacent positive electrode plate and the negative electrode plate of in electrode frame, being respectively equipped with two electrode of opposite frames; Membrane stack includes dense chamber dividing plate, the light chamber dividing plate of alternately arranging and is covered on anion-exchange membrane, the cationic exchange membrane of dividing plate both sides, light chamber; Wherein an electrode frame is provided with dense chamber water-in, light chamber water-in, utmost point chamber water-in, and another electrode frame is provided with dense chamber water outlet, light chamber water outlet, utmost point chamber water outlet, and corresponding light chamber water-in is provided with a plurality of light chambers water outlet on another electrode frame.

Further as the improvement of the utility model technical scheme, corresponding light chamber water-in is provided with two light chamber water outlets on another electrode frame.

Further as the improvement of the utility model technical scheme, communicating with light chamber water-in and light chamber water outlet is equipped with purified water inlet and pure water outlet on dense chamber dividing plate, light chamber dividing plate and positive electrode plate.

The beneficial effect of the utility model: corresponding light chamber water-in is provided with a plurality of light chambers water outlet to this electric deionizer in the water side of pure water; Thereby the water flow inside resistance of the water treatment device that effective reduction electrodeionization is set that can be through a plurality of light chambers water outlet; Make water treatment procedure more abundant, thereby help to obtain higher-quality pure water.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the utility model embodiment one-piece construction exploded perspective view;

Fig. 2 is that the import and export of electrode frame board plane are provided with synoptic diagram among the utility model embodiment;

Fig. 3 is that the import and export of positive plate plane are provided with synoptic diagram among the utility model embodiment.

Embodiment

With reference to Fig. 1～Fig. 3; The utility model is an a kind of pair of pure water EDI electric deionizer; Mainly comprise membrane stack and be used to clamp the electrode frame 1 that membrane stack is installed; With two electrode of opposite frames, 1 adjacent positive electrode plate 51 and the negative electrode plate 52 of in electrode frame 1, being respectively equipped with; Membrane stack includes dense chamber dividing plate 2, the light chamber dividing plate of alternately arranging 3 and is covered on anion-exchange membrane, the cationic exchange membrane of dividing plate 3 both sides, light chamber; Wherein an electrode frame 1 is provided with dense chamber water-in 21, light chamber water-in 31, utmost point chamber water-in 41, and another electrode frame 1 is provided with dense chamber water outlet 22, light chamber water outlet 32, utmost point chamber water outlet 42, and corresponding light chamber water-in 31 is provided with a plurality of light chambers water outlet 32 on another electrode frame 1.

Corresponding light chamber water-in 31 is provided with a plurality of light chambers water outlet 32 to this electric deionizer in the water side of pure water; Thereby the water flow inside resistance of the water treatment device that effective reduction electrodeionization is set that can be through a plurality of light chambers water outlet 32; Make water treatment procedure more abundant, thereby help to obtain higher-quality pure water.

As the utility model preferred embodiment, corresponding light chamber water-in 31 is provided with two light chamber water outlets 32 on another electrode frame 1.

Two light chamber water outlets 32 are the water outlet 32 quantity settings of the most preferred light chamber of the utility model; Can make the water treatment device internal drag under optimum regime, work; Product water back pressure is little, pressure of supply water is little and outer characteristics of leaking thereby reach; And, be difficult for resulting in blockage, thereby help to obtain higher-quality pure water more owing to produce the increase of discharge.

As the utility model preferred embodiment; Communicating with light chamber water-in 31 and light chamber water outlet 32 is equipped with purified water inlet 6 and pure water outlet 7 on dense chamber dividing plate 2, light chamber dividing plate 3 and positive electrode plate 51, so that inner each passage of water treatment device communicates with each other.

Certainly; The invention is not limited to above-mentioned embodiment; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims

1. two pure water EDI electric deionizer; Mainly comprise membrane stack and be used to clamp the electrode frame (1) that membrane stack is installed; Adjacent positive electrode plate (51) and the negative electrode plate (52) of in electrode frame (1), being respectively equipped with said two electrode of opposite frames (1); Said membrane stack includes dense chamber dividing plate (2), the light chamber dividing plate of alternately arranging (3) and is covered on anion-exchange membrane, the cationic exchange membrane of light chamber dividing plate (3) both sides; It is characterized in that: a said wherein electrode frame (1) is provided with dense chamber water-in (21), light chamber water-in (31), utmost point chamber water-in (41); Said another electrode frame (1) is provided with dense chamber water outlet (22), light chamber water outlet (32), utmost point chamber water outlet (42), and corresponding said light chamber water-in (31) is provided with a plurality of light chamber water outlets (32) on another electrode frame (1).

2. according to claim 1 pair of pure water EDI electric deionizer is characterized in that: corresponding said light chamber water-in (31) is provided with two light chamber water outlets (32) on another electrode frame (1).

3. according to claim 1 and 2 pair of pure water EDI electric deionizer is characterized in that: communicate with said light chamber water-in (31) and light chamber water outlet (32) and on dense chamber dividing plate (2), light chamber dividing plate (3) and positive electrode plate (51), be equipped with purified water inlet (6) and pure water outlet (7).