Electrodialysis partition plate capable of preventing adduction

Abstract

The utility model relates to the technical field of electrodialysis, and discloses an anti-adduction electrodialysis partition plate which is characterized by comprising a partition plate frame, a plurality of positioning pieces are symmetrically arranged on the side edges of the partition plate frame, a plurality of through holes are formed in the positioning pieces, the positioning pieces are positioning lugs, the positioning lugs are fixedly installed on the side edges of the partition plate frame, and the through holes comprise positioning holes and stress holes. The circle center of the positioning hole and the circle center of the stress hole are located on the central axis of the inner long edge and the outer long edge of the positioning lug. According to the electrodialysis partition plate capable of preventing adduction, the through holes in the positioning pieces can be matched with guide rods on a membrane stack, so that the partition plate and a membrane are not prone to relatively sliding, internal leakage and external leakage of liquid are reduced, the formed through holes can resist the adduction force generated when the partition plate frame is heated, the guide rods in the through holes can play a role in supporting the partition plate through the through holes, and the electrodialysis partition plate is prevented from adduction. And diaphragm damage caused by inward contraction and deformation of the partition plates is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodialysis, in particular to an electrodialysis separator capable of preventing inward retraction. Background Art

[0002] Electrodialysis is a widely used desalination technology. Its principle is to desalinate the solution by allowing cations and anions in the solution to migrate toward the anode and cathode, respectively, under the influence of an electric field, and to permeate the cation and anion membranes, respectively. The electrodialysis separator is a crucial structure in electrodialysis technology, and the electrodialysis water distribution channel is a key component of the separator. Its function is to create a certain gap between the ion exchange membranes as a compartment for the solution, providing water flow conductivity for the normal operation of the dialysis device.

[0003] However, the heat generated during electrodialysis operation can cause the plastic separator to shrink in size, resulting in uneven contact between the separator and the membrane, damaging the membrane, and causing the separator to slip during use, leading to internal and external leakage of liquid. Utility Model Content

[0004] The purpose of the present utility model is to provide an electrodialysis separator that can prevent inward movement, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an electrodialysis separator that prevents inward retraction, characterized in that it comprises a separator frame, a plurality of positioning members symmetrically arranged on the sides of the separator frame, and a plurality of through holes formed on the positioning members.

[0006] Preferably, the positioning member is a positioning ear.

[0007] Preferably, the positioning ears are fixedly mounted on the sides of the partition frame.

[0008] Preferably, the through hole includes a positioning hole and a force-bearing hole, and the center of the positioning hole and the center of the force-bearing hole are both located on the central axis of the inner long side and the outer long side of the positioning ear.

[0009] Preferably, the radii of the positioning hole and the force-bearing hole are both 0.5 cm to 1 cm.

[0010] Preferably, the distance between two adjacent positioning holes is 3 cm to 10 cm.

[0011] Preferably, the distance between the positioning hole and the adjacent force-bearing hole is 10 cm to 30 cm.

[0012] Preferably, the distance between two adjacent positioning ears is 5 cm to 20 cm.

[0013] Preferably, the inner long side length of the connection between the positioning ear and the partition frame is 25cm to 50cm, the outer long side length of the positioning ear is 20cm to 45cm, and the inner long side length of the positioning ear is greater than the outer long side length.

[0014] Preferably, the width of the positioning ear is 3 cm to 6 cm, and the chamfer angle of the connection position between the outer long side and the wide side of the positioning ear is 45° to 135°.

[0015] The electrodialysis separator that prevents inward retraction has the following beneficial effects:

[0016] The electrodialysis partition that prevents inward contraction has a through hole on the positioning part that can adapt to the guide rod on the membrane stack, so that the partition and the diaphragm are not prone to relative sliding, reducing internal and external leakage of liquid. The set through hole can resist the inward contraction force generated by the partition frame when heated, and the guide rod in the through hole can support the partition through the through hole, preventing the diaphragm from being damaged due to inward deformation of the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A planar structural diagram of an electrodialysis separator for preventing retraction provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 Schematic diagram of the middle positioning ear;

[0019] Figure 3 for Figure 2 Schematic diagram of the load-bearing hole.

[0020] In the figure: 1. Partition frame; 2. Positioning ear; 3. Positioning hole; 4. Force-bearing hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, the utility model provides an electrodialysis separator for preventing inward retraction, comprising: a separator frame 1, a plurality of positioning members symmetrically arranged on the side of the separator frame 1, and a plurality of through holes formed on the positioning members.

[0023] Specifically, such as Figure 1-Figure 2As shown, the positioning piece is a positioning ear 2, a through hole is provided on the positioning ear 2, the positioning ear 2 is fixedly mounted on the side of the partition frame 1, the spacing g between two adjacent positioning ears 2 is 5cm to 20cm, preferably, g is 10cm, the length of the inner long side a at the connection between the positioning ear 2 and the partition frame 1 is 25cm to 50cm, the length of the outer long side b of the positioning ear 2 is 20cm to 45cm, and the length of the inner long side of the positioning ear 2 is greater than the length of the outer long side, the width of the positioning ear 2 (the length of the wide side b) is 3cm to 6cm, preferably, a is 30cm, b is 25cm, and c is 4cm, the angle of the chamfer h at the connection position between the outer long side and the wide side of the positioning ear 2 is 45° to 135°, preferably, h is 65°, the spacing f between the inner long side of the positioning ear 2 and the wide side of the partition frame 1 is 20cm to 50cm, preferably, f is 36cm.

[0024] like Figure 2-Figure 3 As shown, the through hole includes a positioning hole 3 and a force-bearing hole 4. The center of the positioning hole 3 and the center of the force-bearing hole 4 are both located on the central axis of the inner long side and the outer long side of the positioning ear 2. The radius i of the positioning hole 3 and the force-bearing hole 4 are both 0.5cm~1cm. Preferably, i is 0.8cm. The spacing d between two adjacent positioning holes 3 is 3cm~10cm. The spacing e between the positioning hole 3 and the adjacent force-bearing hole 4 is 10cm~30cm. Preferably, d is 5cm and e is 15cm.

[0025] In this embodiment, the positioning hole 3 on the positioning ear 2 can be adapted to the guide rod on the membrane stack, so that relative sliding is not easy to occur between the entire partition and the diaphragm, thereby reducing internal and external leakage of the liquid. When the partition equipment is powered on to generate heat, heat is easily accumulated at both ends, causing the partition frame 1 to deform and shrink inward at both ends. After the partition is assembled on the membrane stack, the guide rod on the membrane stack is inserted into the force-bearing hole 4. The force-bearing hole 4 is set to resist the inward contraction force generated by the partition frame 1 when heated. The guide rod in the force-bearing hole 4 can support the partition through the force-bearing hole 4 to prevent the partition from being damaged by the diaphragm due to inward deformation.

[0026] Working principle: The positioning hole 3 on the positioning ear 2 can be adapted to the guide rod on the membrane stack, so that relative sliding is not easy to occur between the entire partition and the diaphragm. When the partition equipment is powered on to generate heat, heat is easily accumulated at both ends, causing the partition frame 1 to deform and shrink inward at both ends. After the partition is assembled on the membrane stack, the guide rod on the membrane stack is inserted into the force-bearing hole 4. The force-bearing hole 4 is set to resist the inward contraction force generated by the partition frame 1 when heated. The guide rod in the force-bearing hole 4 can support the partition through the force-bearing hole 4 and pull the partition.

[0027] In summary, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrodialysis separator for preventing inward movement, characterized in that: include: A partition frame (1), wherein a plurality of positioning members are symmetrically arranged on the side of the partition frame (1), and a plurality of through holes are provided on the positioning members; The positioning member is a positioning ear (2), and the positioning ear (2) is fixedly mounted on the side of the partition frame (1); The through hole comprises a positioning hole (3) and a force-bearing hole (4), and the center of the positioning hole (3) and the center of the force-bearing hole (4) are both located on the central axis of the inner long side and the outer long side of the positioning ear (2).

2. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The radii of the positioning hole (3) and the force-bearing hole (4) are both 0.5 cm to 1 cm.

3. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The distance between two adjacent positioning holes (3) is 3 cm to 10 cm.

4. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The spacing between the positioning hole (3) and the adjacent force-bearing hole (4) is 10 cm to 30 cm.

5. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The distance between two adjacent positioning ears (2) is 5 cm to 20 cm.

6. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The inner long side length of the connection between the positioning ear (2) and the partition frame (1) is 25 cm to 50 cm, the outer long side length of the positioning ear (2) is 20 cm to 45 cm, and the inner long side length of the positioning ear (2) is greater than the outer long side length.

7. The electrodialysis separator for preventing inward movement according to claim 1, characterized in that: The width of the positioning ear (2) is 3 cm to 6 cm, and the chamfer angle of the connection position between the outer long side and the wide side of the positioning ear (2) is 45° to 135°.

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