CN211636037U

CN211636037U - Bipolar membrane electrodialysis device

Info

Publication number: CN211636037U
Application number: CN201922448833.5U
Authority: CN
Inventors: 张军; 何君; 吕文玉
Original assignee: SHANGHAI LEZE ENVIRONMENTAL ENGINEERING CO LTD
Current assignee: SHANGHAI LEZE ENVIRONMENTAL ENGINEERING CO LTD
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a bipolar membrane electrodialysis device, including the electrodialysis case, the internally mounted of electrodialysis case has the doublestage membrane, the both sides of doublestage membrane are provided with the desalination chamber, one side of desalination chamber is provided with concentrated room, the top mid-mounting of electrodialysis case has the feed liquor pipe, the automobile body is installed through the supporting leg in the below both sides of electrodialysis case, the inside both sides of electrodialysis case are provided with anode chamber and cathode chamber respectively, the plate electrode is installed to the inner wall of anode chamber and cathode chamber. The utility model discloses an electrodialysis case's the outside is provided with the frame, installs shelves pole between the electrodialysis case, can protect the electrodialysis case through it, increases the security, installs the automobile body through the supporting leg in the below of electrodialysis case, removes through its convenient controlling means, and installs the tongue at the top of supporting leg, dismantles through its easy to assemble.

Description

Bipolar membrane electrodialysis device

Technical Field

The utility model relates to an electrodialysis device field specifically is a bipolar membrane electrodialysis device.

Background

Electrodialysis is a membrane separation operation that uses potential difference as driving force and utilizes the selective permeability of an ion exchange membrane to remove or enrich electrolyte from a solution, and the electrodialysis process is the combination of an electrochemical process and a dialysis diffusion process; under the drive of an external direct current electric field, by utilizing the selective permeability of an ion exchange membrane, anions and cations move to an anode and a cathode respectively, and in the ion migration process, if the fixed charge of the membrane is opposite to the charge of ions, the ions can pass through; if the charges of the two membranes are the same, ions are repelled, so that the purposes of desalting, concentrating, refining or purifying the solution are realized, and the bipolar membrane is also called as a bipolar membrane and is a special ion exchange membrane which is a negative and positive composite membrane prepared by compounding a positive membrane and a negative membrane. The membrane is characterized in that under the action of a direct current electric field, H2O between a cathode membrane composite layer and an anode membrane composite layer is dissociated into H + and OH < - > which respectively pass through the cathode membrane and the anode membrane to serve as H + and OH < - > ion sources, and the bipolar membrane can be divided into a homogeneous bipolar membrane and a heterogeneous bipolar membrane according to a macroscopic membrane body structure.

The bipolar membrane electrodialysis device at the present stage is inconvenient to install and fix, inconvenient to assemble, poor in protection capability and inconvenient to transport.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bipolar membrane electrodialysis device to the installation of solving among the prior art is fixed inconvenient, inconvenient equipment, and the protective capacities is poor, and inconvenient transportation problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bipolar membrane electrodialysis device, includes the electrodialysis case, the internally mounted of electrodialysis case has the doublestage membrane, the both sides of doublestage membrane are provided with the desalination chamber, one side of desalination chamber is provided with the concentration chamber, the top mid-mounting of electrodialysis case has the feed liquor pipe, the automobile body is installed through the supporting leg in the below both sides of electrodialysis case, the inside both sides of electrodialysis case are provided with anode chamber and cathode chamber respectively, the plate electrode is installed to the inner wall of anode chamber and cathode chamber.

Preferably, two sides of the electrodialysis box are provided with baffle rods, and two ends of the baffle rods are connected with the side walls of the electrodialysis box through bolts.

Preferably, the two desalting chambers and the two concentrating chambers are both provided with positive membranes and negative membranes which are mutually isolated.

Preferably, a protruding head is installed at the top end of each supporting leg, and each supporting leg is fixedly connected with the bottom of the electrodialysis box through the protruding head.

Preferably, the middle part of one side of the electrodialysis box is provided with an electric connection plate, and the electric connection plate is connected with the electrode plate.

Preferably, the bottom end of the electrodialysis box is provided with a concentrated solution conveying pipe and a desalted solution conveying pipe, and the concentrated solution conveying pipe and the desalted solution conveying pipe are respectively connected with the concentration chamber and the desalting chamber.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an electrodialysis case's the outside is provided with the frame, install the shelves pole between the electrodialysis case, can protect the electrodialysis case through it, increase security, install the automobile body through the supporting leg in the below of electrodialysis case, it removes through its convenient controlling means, and install the tongue at the top of supporting leg, dismantle through its easy to assemble, there is the doublestage membrane at the mid-mounting of electrodialysis case, and all be provided with the desalination chamber in the both sides of doublestage membrane, all be provided with the concentration chamber in one side of desalination chamber, can carry out two room simultaneously through it and handle, improve the liquid treatment effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the electrodialysis box frame of the present invention.

Fig. 3 is a front view of the vehicle body of the present invention.

Fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. an electrodialysis box; 2. a gear lever; 3. an electrode plate; 4. a positive membrane; 5. a negative film; 6. an anode chamber; 7. a desalination liquid conveying pipe; 8. supporting legs; 9. a concentrated solution conveying pipe; 10. a vehicle body; 11. a fixing hoop; 12. a liquid inlet pipe; 13. a two-stage membrane; 14. a desalting chamber; 15. a concentration chamber; 16. a cathode chamber; 17. and a power connection plate.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a bipolar membrane electrodialysis device includes an electrodialysis box 1, a bipolar membrane 13 is installed in the middle of the inside of the electrodialysis box 1, the bipolar membrane is also called a bipolar membrane and is a special ion exchange membrane, the bipolar membrane 13 is a composite membrane of a cathode membrane and an anode membrane, the membrane is characterized in that under the action of a dc electric field, H2O between the composite membrane of the cathode membrane and the anode membrane is dissociated into H + and OH "and passes through the cathode membrane and the anode membrane respectively to serve as H + and OH" ion sources, the bipolar membrane is divided into a homogeneous bipolar membrane and a heterogeneous bipolar membrane according to a macroscopic membrane structure, desalination chambers 14 are disposed on two sides of the bipolar membrane 13, the desalination chambers 14 are used for decomposing waste residues in wastewater to discharge anions and cations therein, a concentration chamber 15 is disposed on one side of the desalination chambers 14, the concentration chamber 15 is used for collecting anions and cations, two desalting chambers 14 and two concentrating chambers 15 are arranged, the two desalting chambers 14 and the two concentrating chambers 15 are isolated from each other through an anode membrane 4 and a cathode membrane 5, a liquid inlet pipe 12 is arranged in the middle of the top end of an electrodialysis box 1, waste liquid is conveniently injected into the desalting chambers 14 through the liquid inlet pipe 12, stop rods 2 are arranged on two sides of the electrodialysis box 1, two ends of each stop rod 2 are connected with the side wall of the electrodialysis box 1 through bolts, a vehicle body 10 is arranged on two sides below the electrodialysis box 1 through supporting legs 8, a raised head is arranged at the top end of each supporting leg 8, the supporting legs 8 are fixedly connected with the bottom of the electrodialysis box 1 through the raised heads, a power connection plate 17 is arranged in the middle of one side of the electrodialysis box 1 and connected with an electrode plate 3, a concentrated liquid conveying pipe 9 and a diluted liquid conveying pipe 7 are arranged at the bottom end of the electrodialysis box 1, and the concentrated liquid conveying pipe 9 and the diluted liquid conveying pipe 7 are respectively, an anode chamber 6 and a cathode chamber 16 are respectively arranged at two sides in the electrodialysis box 1, the anode chamber 6 and the cathode chamber 16 are used for decomposing a cathode membrane 5, an anode membrane 4 and a two-stage membrane 13, and the electrode plates 3 are arranged on the inner walls of the anode chamber 6 and the cathode chamber 16.

The utility model discloses a theory of operation is: when the device is used, wastewater is conveyed into a desalting chamber 14 through a liquid inlet pipe 12, current is supplied to a double-stage membrane 13, an anode membrane 4 and a cathode membrane 5 through an anode chamber 6 and a cathode chamber 16, so that cations and anions are selectively permeated into a concentration chamber 15 through the action of the double-stage membrane 13, the anode membrane 4 and the cathode membrane 5 in the desalting chamber 14 by the wastewater, waste residues in the wastewater are gathered through the concentration chamber 15, then the desalted liquid is discharged through a desalting liquid conveying pipe 7, and the concentrated liquid is discharged through a concentrated liquid conveying pipe 9.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a bipolar membrane electrodialysis device, includes electrodialysis case (1), its characterized in that the internally mounted of electrodialysis case (1) has doublestage membrane (13), the both sides of doublestage membrane (13) are provided with desalination chamber (14), one side of desalination chamber (14) is provided with concentration chamber (15), the top mid-mounting of electrodialysis case (1) has feed liquor pipe (12), automobile body (10) are installed through supporting leg (8) in the below both sides of electrodialysis case (1), the inside both sides of electrodialysis case (1) are provided with anode chamber (6) and cathode chamber (16) respectively, plate electrode (3) are installed to the inner wall of anode chamber (6) and cathode chamber (16).

2. The bipolar membrane electrodialysis device according to claim 1, wherein: two sides of the electrodialysis box (1) are provided with baffle rods (2), and two ends of the baffle rods (2) are connected with the side wall of the electrodialysis box (1) through bolts.

3. The bipolar membrane electrodialysis device according to claim 1, wherein: the two desalting chambers (14) and the two concentrating chambers (15) are respectively arranged and are mutually isolated through the positive membrane (4) and the negative membrane (5) between the two desalting chambers (14) and the concentrating chambers (15).

4. The bipolar membrane electrodialysis device according to claim 1, wherein: the top end of the supporting leg (8) is provided with a raised head, and the supporting leg (8) is fixedly connected with the bottom of the electrodialysis box (1) through the raised head.

5. The bipolar membrane electrodialysis device according to claim 1, wherein: and an electricity connecting plate (17) is arranged in the middle of one side of the electrodialysis box (1), and the electricity connecting plate (17) is connected with the electrode plate (3).

6. The bipolar membrane electrodialysis device according to claim 1, wherein: and a concentrated solution conveying pipe (9) and a desalted solution conveying pipe (7) are installed at the bottom end of the electrodialysis box (1), and the concentrated solution conveying pipe (9) and the desalted solution conveying pipe (7) are respectively connected with a concentration chamber (15) and a desalting chamber (14).