CN216093088U

CN216093088U - Electrodialysis membrane piece jumbo size baffle structure

Info

Publication number: CN216093088U
Application number: CN202122435864.4U
Authority: CN
Inventors: 王大新; 施小林; 杨鹏
Original assignee: Zhejiang Yidi Environmental Equipment Co ltd
Current assignee: Zhejiang Yidi Environmental Equipment Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-03-22
Anticipated expiration: 2031-10-11

Abstract

The utility model relates to a large-size partition structure of an electrodialysis membrane block, and belongs to the field of electrodialysis partitions. The utility model comprises a partition plate frame, a diversion hole, a water distributor preformed hole, a partition net preformed area and a water distributor positioning hole, wherein the upper end and the lower end of the partition plate frame are respectively provided with a plurality of diversion holes, and every two diversion holes are separated by one diversion hole and provided with one water distributor preformed hole which is connected with the diversion holes; the water distributor preformed hole is provided with a plurality of water distributor positioning holes, the center part of the partition plate frame is provided with a partition net preformed region, and the partition net preformed region and each flow guide hole with the water distributor preformed hole form an integral cavity on the partition plate frame. The utility model has simple and reasonable structural design, improves the sealing performance of the electrodialysis partition, reduces the area of a flow dead zone, ensures more uniform mass transfer, and ensures that the water distributor better guides feed liquid and supports the diaphragm, thereby improving the current efficiency, reducing the energy consumption of equipment operation and meeting the use requirement.

Description

Electrodialysis membrane piece jumbo size baffle structure

Technical Field

The utility model relates to a partition structure, in particular to an electrodialysis membrane block large-size partition structure, and belongs to the field of electrodialysis partitions.

Background

Electrodialysis technology has been introduced since the 20 th century and the 50 th century, and has been used for over 50 years, and at present, electrodialysis technology has been widely applied to seawater desalination, brackish water desalination, ultrapure water preparation, industrial wastewater recycling, and substance separation, concentration, purification, refining and the like in chemical engineering processes, for example, electrodialysis is used for treating a plurality of electroplating solutions, alkali and aluminum are recovered in alumina production and are reused with industrial water, acid is recovered from waste acid water, waste water containing virulent cyanide is treated, tap water is dechlorinated, and the like.

The electrodialysis equipment comprises an anion-cation exchange membrane, an electrode plate, a pressure plate, a partition plate, a membrane stack pressure mechanism and the like, wherein the electrodialysis partition plate is important in the electrodialysis equipment.

At present, electrodialysis separators are various, but all have the following characteristics: (1) the electrodialysis partition plate is convenient and various in material selection and simple and convenient in manufacturing process, can reduce equipment cost and is suitable for various working environments; (2) the electrodialysis partition plate and the ion exchange membrane have good sealing performance, and the feed liquid of the electrodialysis equipment is prevented from leaking from the inside to the outside; (3) the electrodialysis partition plate has a turbulent flow effect on the feed liquid in the electrodialysis equipment, so that the feed liquid is promoted to be mixed, and the electrodialysis efficiency is improved; (4) the electrodialysis partition plate has good distribution effect on the feed liquid flowing in the electrodialysis equipment, so that the feed liquid fluid is uniformly distributed in the equipment without dead angles, and the ion exchange membrane and the partition plate are prevented from being damaged due to local high temperature of a membrane stack; (5) the water distributor can well support the membrane and prevent the membrane from being damaged and collapsed.

At present, the electrodialysis partition plate in the prior art has the problems of poor sealing performance, large flow dead zone range, uneven mass transfer and poor structure of a water distributor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the electrodialysis membrane block large-size partition plate structure which is simple and reasonable in structural design, improves the sealing performance of the electrodialysis partition plate, reduces the area of a flow dead zone, enables mass transfer to be more uniform, enables a water distributor to better guide feed liquid and support a membrane, improves current efficiency and reduces equipment operation energy consumption.

The technical scheme adopted by the utility model for solving the problems is as follows: this electrodialysis membrane piece jumbo size baffle structure, its characterized in that: the water distributor comprises a partition plate frame, a plurality of flow guide holes, water distributor preformed holes, partition net preformed areas and water distributor positioning holes, wherein the upper end and the lower end of the partition plate frame are respectively provided with the flow guide holes, and the flow guide holes are arranged at intervals, provided with the water distributor preformed holes and connected with the flow guide holes; the water distributor reserved hole is provided with a plurality of water distributor positioning holes, the central part of the partition plate frame is provided with a partition net reserved area, and the partition net reserved area and each flow guide hole with the water distributor reserved hole form an integral cavity on the partition plate frame.

Preferably, the utility model also comprises a water distributor positioning joint and a flow passage, wherein the thickness of the water distributor is 0.7-0.9 mm, the water distributor positioning joint is reserved on two sides of the water distributor, and the water distributor is provided with a plurality of flow passages.

Preferably, the utility model further comprises a separation net, wherein the separation net is arranged in the separation net reserved area.

Preferably, the water distributor positioning joint is embedded in the water distributor positioning hole.

Preferably, one surface of the partition plate frame is a smooth surface, and the other surface of the partition plate frame is attached with raised stripes; to improve the sealing performance of the separator.

Preferably, the upper end and the lower end of the partition plate frame are respectively provided with 20 diversion holes.

Preferably, the thickness of the separator frame is 0.7-0.9 mm.

Preferably, the wire diameter of the separation net is 0.3-0.6 mm, and the side length of the separation net hole is 2-3 mm diamond-shaped holes.

Compared with the prior art, the utility model has the following advantages and effects: 1) the whole structure is reasonable in design, and the sealing performance of the equipment is improved; 2) reducing dead zone flow area; 3) the feed liquid is distributed more uniformly in the electrodialysis equipment; 4) the membrane and the partition plate in the membrane stack are prevented from sinking; 5) due to the structure of the water distributor, feed liquid can be better guided and the membrane can be better supported; 6) improving the current efficiency and reducing the energy consumption of operation.

Drawings

Fig. 1 is a schematic structural view of a spacer frame according to an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of a-a in fig. 1.

Fig. 3 is a schematic structural diagram of a water distributor according to an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a finished separator according to an embodiment of the present invention.

In the figure: the water distributor comprises a partition plate frame 1, a diversion hole 2, a water distributor preformed hole 3, a partition net preformed area 4, a water distributor positioning hole 5, a water distributor positioning joint 6, a flow passage 7 and a partition net 8.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.

Examples are given.

Referring to fig. 1 to 4, the large-sized partition structure of the electrodialysis membrane block of the embodiment includes a partition frame 1, a flow guide hole 2, a water distributor preformed hole 3, a partition net preformed region 4, and a water distributor positioning hole 5, wherein the upper end and the lower end of the partition frame 1 are respectively provided with a plurality of flow guide holes 2, and each flow guide hole 2 is separated by one flow guide hole 2, and is provided with one water distributor preformed hole 3, and is connected with the flow guide hole 2; the water distributor preformed hole 3 is provided with a plurality of water distributor positioning holes 5, the central part of the partition plate frame 1 is provided with a partition net preformed area 4, and the partition net preformed area 4 and each flow guide hole 2 with the water distributor preformed hole 3 form an integral cavity on the partition plate frame 1.

Referring to fig. 1 to 2, the spacer frame 1 of the present embodiment has a dimension of W1 of 1120mm, a dimension of W2 of 1120mm, and a thickness of 0.7 to 0.9 mm. The upper end and the lower end of the clapboard frame 1 are respectively provided with 20 diversion holes 2, every two diversion holes 2 are separated, and a water distributor preformed hole 3 is arranged and connected with the diversion holes 2; a water distributor positioning hole 5 is formed in the water distributor preformed hole 3; the center part of the clapboard frame 1 is provided with a clapboard reserved area 4 which forms an integral cavity together with each flow guide hole 2 with a water distributor reserved hole 3 on the clapboard frame 1.

Referring to fig. 3, the thickness of the water distributor is 0.7-0.9 mm, the two sides of the water distributor are provided with water distributor positioning joints 6, and the water distributor is provided with a plurality of flow channels 7.

Referring to fig. 4, the separation net 8 of the present embodiment is installed in the separation net reserved area 4, and the water distributor positioning connector 6 is embedded in the water distributor positioning hole 5, so as to finally obtain a finished product.

One side of the partition plate frame 1 of the embodiment is a smooth surface, and the other side is attached with raised stripes, so that the sealing performance of the partition plate is improved.

The guide holes are formed in the partition plate frame 1, so that the diaphragm and the partition plate can be conveniently positioned and adjusted to incline during assembly, and can be supported to prevent the diaphragm and the partition plate from sinking under the action of gravity.

Two corners of one side of the partition plate frame 1 are provided with chamfers, so that the partition plate can be used for distinguishing the thick and thin water partition plates in the assembling process; furthermore, the partition board described herein has no part of the dense-dilute water partition board, and another partition board can be obtained by rotating the partition board 180 degrees on the plane.

The curve of the flow passage 7 of the water distributor is gradually changed to form fan-shaped distribution, so that the flow area of a dead zone is reduced; 4 reinforcing ribs with the width of 0.8-1.0 mm are arranged on the water distributor and are alternately arranged above and below the water distributor; the design can better play a role in supporting the membrane.

The wire diameter of the separation net 8 is 0.3-0.6 mm, and the meshes of the separation net 8 are rhombic holes with the side length of 2-3 mm.

And will be apparent to those skilled in the art from the foregoing description.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the utility model are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. An electrodialysis membrane block jumbo size baffle structure which characterized in that: the water distributor comprises a partition plate frame (1), a plurality of flow guide holes (2), water distributor preformed holes (3), a partition net preformed area (4) and water distributor positioning holes (5), wherein the upper end and the lower end of the partition plate frame (1) are respectively provided with the flow guide holes (2), one flow guide hole (2) is arranged at each interval, one water distributor preformed hole (3) is arranged at each interval, and the partition plate frame is connected with the flow guide holes (2); a plurality of water distributor positioning holes (5) are formed in the water distributor preformed holes (3), a partition net preformed area (4) is reserved in the center of the partition plate frame (1), and the partition net preformed area (4) and each flow guide hole (2) with the water distributor preformed holes (3) form an integral cavity on the partition plate frame (1).

2. An electrodialysis membrane block large size separator structure according to claim 1, wherein: the water distributor is characterized by further comprising a water distributor positioning joint (6) and flow channels (7), the thickness of the water distributor is 0.7-0.9 mm, the water distributor positioning joint (6) is reserved on two sides of the water distributor, and the water distributor is provided with a plurality of flow channels (7).

3. An electrodialysis membrane block large size separator structure according to claim 1, wherein: the net-separating device further comprises a net (8), and the net (8) is installed in the net-separating reserved area (4).

4. An electrodialysis membrane block large-size separator structure according to claim 2, wherein: the water distributor positioning joint (6) is embedded in the water distributor positioning hole (5).

5. An electrodialysis membrane block large size separator structure according to claim 1, wherein: one side of the partition plate frame (1) is a smooth surface, and the other side of the partition plate frame is attached with raised stripes.

6. An electrodialysis membrane block large size separator structure according to claim 1, wherein: the upper end and the lower end of the partition plate frame (1) are respectively provided with 20 flow guide holes (2).

7. An electrodialysis membrane block large size separator structure according to claim 1, wherein: the thickness of the partition plate frame (1) is 0.7-0.9 mm.

8. An electrodialysis membrane block large-size separator structure according to claim 3, wherein: the wire diameter of the separation net (8) is 0.3-0.6 mm, and the holes of the separation net (8) are rhombic holes with the side length of 2-3 mm.