CN211947247U

CN211947247U - Polar plate frame with diaphragm device

Info

Publication number: CN211947247U
Application number: CN201921019090.3U
Authority: CN
Inventors: 林建平; 胡夏斌; 叶栋; 姜玉玲
Original assignee: Hangzhou Sannal Environmental Technology Co ltd
Current assignee: Hangzhou Sannal Environmental Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-11-17
Anticipated expiration: 2029-07-02

Abstract

The utility model belongs to the technical field of electrolysis process, a take diaphragm device's polar plate frame is disclosed. The utility model comprises a diaphragm frame and a diaphragm bag; the membrane bag can be sleeved outside the membrane frame. The utility model discloses can separate the electrolysis space for a plurality of cathode rooms and a plurality of anode chambers, the migration of control material is used, the utility model discloses can be applied to cathode room or anode chamber, simple structure, the range of application is wide.

Description

Polar plate frame with diaphragm device

Technical Field

The utility model relates to the technical field of electrolysis, in particular to polar plate frame with a diaphragm device.

Background

The cathode plates and the anode plates in the electrolytic bath are alternately arranged, when direct current passes through the electrolytic bath, a reduction reaction occurs at the interface of the cathode and the solution, and an oxidation reaction occurs at the interface of the anode and the solution, so that a required product is prepared. In some electrolysis processes, a cathode chamber and an anode chamber need to be separated, so that the migration of materials can be controlled, and the electrolysis effect is ensured. The common electrolytic diaphragm structure can only be singly applied to a cathode plate or an anode plate. In order to use a diaphragm structure in a matching way, the cathode chamber and the anode chamber are often processed into different structural forms, the diaphragm structure has more parts, the assembly is complex, and the processing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrolytic and electro-deposition cell with a diaphragm device, which can solve one or more of the prior art problems.

According to an aspect of the utility model, a take polar plate frame of diaphragm device is provided, including diaphragm frame and diaphragm bag. The membrane bag can be sleeved outside the membrane frame. The frame and bottom of the diaphragm frame are provided with slots for fixing the electrode plates. Therefore, the diaphragm frame can be wrapped in the diaphragm bag to form a relatively independent space, so that the diaphragm frame in the diaphragm bag is separated from the space outside the diaphragm bag, and a separated electrolysis space is formed in the electrolysis process. The diaphragm frame and the diaphragm bag have simple structures and are easy to assemble.

In some embodiments, the membrane bag is a rectangular parallelepiped structure; the depth of the membrane bag is equal to the height of the membrane frame; the upper end of the membrane bag can mate with the top of the membrane frame. From this, the diaphragm bag is the cuboid structure, can conveniently alternate diaphragm frame and electrode plate, improves the installation effectiveness. The depth of the diaphragm bag is equal to the height of the diaphragm frame, so that the diaphragm bag sleeved outside the diaphragm frame can be guaranteed to be kept flat, and the electrolysis efficiency is improved. The upper end of the membrane bag is matched with the top of the membrane frame, so that the membrane bag can be prevented from falling off.

In some embodiments, the membrane bag has an opening at the upper end. Therefore, the diaphragm frame can be conveniently mounted and dismounted.

In some embodiments, the opening of the membrane bag is provided with a first connector, and the top of the membrane frame is provided with a second connector, the first connector being capable of mating with the second connector. Therefore, the connection between the diaphragm bag and the diaphragm frame can be facilitated, the diaphragm bag is reinforced, and the diaphragm bag is prevented from falling off.

In some embodiments, the first and second connectors are apertures. Therefore, the first connecting piece and the second connecting piece can be connected through a string and the like, and the diaphragm bag is prevented from falling off. The small hole has simple structure and easy processing, and reduces the processing cost.

In some embodiments, the first connecting element and the second connecting element can be designed as a tongue-and-groove arrangement. Therefore, the first connecting piece and the second connecting piece can be joggled with each other, surface contact is formed between the first connecting piece and the second connecting piece, and the connection between the diaphragm bag and the diaphragm frame is firmer.

In some embodiments, the membrane frame is a rectangular frame with a hollow interior, and the top of the membrane frame has a through hole through which the electrode plate can be inserted into the interior of the membrane frame. Therefore, the rectangular diaphragm frame can be matched with most of cuboid electrolytic cells on the market, and the application range is expanded. The electrode plate is inserted into the diaphragm frame through the through hole, so that a certain supporting effect can be achieved, and the electrode plate is convenient to fix. Correspondingly, the frame of the diaphragm frame can be provided with a slot for being embedded with the electrode plate, so that the electrode plate can be further stabilized, and the electrode plate is prevented from shaking in the diaphragm frame.

In some embodiments, the electrode plate is a cathode plate or an anode plate. From this, the diaphragm bag and the diaphragm frame of same structural style can be applied to negative plate or anode plate, can reduce the kind of processing part, and the utility model discloses structural requirement to negative plate and anode plate is lower. The cathode plate and the anode plate can have the same structural form, and the cathode chamber and the anode chamber are simple in structure. In the electrolysis process, the cathode plate or the anode plate can be provided with a diaphragm bag to separate the cathode chamber from the anode chamber, so that the redox reactions at the two ends of the electrolysis cathode and the anode can be smoothly carried out.

In some embodiments, a spacer rod is provided on the diaphragm frame. The isolating rod is connected with the top and the bottom of the diaphragm frame and is positioned at the outer edge of the diaphragm frame body. Therefore, the isolation rod can play a certain supporting role for the diaphragm frame. And the isolating rod can separate the electrode plate inserted into the diaphragm frame from the diaphragm bag sleeved outside the diaphragm frame, so that the diaphragm bag can be prevented from being adhered to the electrode plate.

In some embodiments, the membrane bag is made of a polymeric permselective membrane. Therefore, the diaphragm bag has selective permeability, can control the movement direction of various ions in the electrolyte, and improves the electrolysis efficiency.

In some embodiments, the membrane frame is an insulating corrosion resistant material. Therefore, the diaphragm frame does not influence the design of the electrolytic circuit, and is convenient to install and apply. In addition, the diaphragm frame can not be corroded by electrolyte, so that pollution can be avoided, and the service life is prolonged.

Drawings

Fig. 1 is a front view of a plate frame with a diaphragm device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the plate frame with the diaphragm device shown in FIG. 1;

FIG. 3 is a front view of a diaphragm frame of the plate frame with the diaphragm assembly shown in FIG. 1;

fig. 4 is a front view of a separator bag with a plate frame of the separator device shown in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 schematically shows a plate frame with a membrane device according to an embodiment of the present invention. Fig. 2 schematically shows the internal structure of the plate frame with the membrane device shown in fig. 1. Figure 3 schematically shows a membrane frame 10 with a plate frame of the membrane device shown in figure 1. Figure 4 schematically shows a membrane bag 20 with a plate frame of the membrane device shown in figure 1. As shown, the device includes a membrane frame 10 and a membrane bag 20. Diaphragm frame 10 is a rectangular frame with a hollow interior. Membrane bag 20 is sleeved on the outside of membrane frame 10. Wherein, the diaphragm frame 10 is made of acid-resistant and alkali-resistant PVC material or PE material by injection molding, and the diaphragm bag 20 is made of anion exchange resin material.

The membrane bag 20 has a rectangular parallelepiped structure, and the depth of the membrane bag 20 is equal to the height of the membrane frame 10. The upper end of the membrane bag 20 has an opening 21. Membrane frame 10 fits inside membrane bag 20, with the bottom of membrane frame 10 in contact with the bottom of membrane bag 20 and the top of membrane frame 10 flush with opening 21 of membrane bag 20. Thus, membrane frame 10 supports membrane bag 20, and membrane bag 20 can be held flat so as not to affect the rate of ion passage during electrolysis.

The diaphragm bag 20 is provided with a plurality of first connectors 22 on both sides of the opening 21 and a plurality of second connectors 11 on both sides of the top of the diaphragm frame 10. In this embodiment, the first connecting member 22 and the second connecting member 11 are small holes. The first plurality of connectors 22 on the membrane bag 20 may be aligned with the second plurality of connectors 11 on the top of the membrane frame 10 so that a thin thread may be used to thread the membrane bag 20 through a small hole to the membrane frame 10, thereby preventing the membrane bag 20 from falling out.

In other embodiments, the first connecting member 22 and the second connecting member 11 may form a tenon structure. There are multiple sets of membrane bags 20 with the first connector 22 and the second connector 11 of the membrane frame 10. The interlocking of the plurality of sets of first connectors 22 and second connectors 11 forms a surface contact between the membrane bag 20 and the membrane frame 10, which ensures that the membrane bag 20 is firmly fixed on the membrane frame 10 and is not easy to fall off.

The top of the membrane frame 10 is provided with an elongated through hole 12. The frame and bottom of the diaphragm frame 10 has slots 14 for fixing electrode plates. Two rows of isolating rods 13 are vertically arranged on the diaphragm frame 10, and the isolating rods 13 are positioned at two sides of the through hole 12 at the top and the slot 14 at the bottom of the diaphragm frame 10. The cathode plate or the anode plate may be inserted inside the diaphragm frame 10 through the through-hole 12, and the side and bottom edges of the electrode plate may be inserted into the slot 14. Therefore, the stability of the electrode plate can be ensured, and the electrode plate is prevented from moving along with the flowing of the electrolyte. Depending on the electrolysis requirements, cathode plates or anode plates can be inserted into the membrane frame 10: the cathode chamber can be isolated when the cathode plate is inserted, and the anode chamber can be isolated when the anode plate is inserted. The electrode plate is positioned between two rows of isolating rods 13, and the diaphragm bag 20 is positioned outside the isolating rods 13, so that the diaphragm bag 20 can be prevented from being adhered to the electrode plate.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The polar plate frame with the diaphragm device is characterized by comprising a diaphragm frame (10) and a diaphragm bag (20); the membrane bag (20) can be sleeved outside the membrane frame (10), and the frame and the bottom of the membrane frame (10) are provided with slots (14) for fixing electrode plates.

2. Plate frame with membrane device according to claim 1, characterized in that the membrane bag (20) is of rectangular parallelepiped structure; the depth of the membrane bag (20) is equal to the height of the membrane frame (10); the upper end of the membrane bag (20) is capable of mating with the top of the membrane frame (10).

3. Plate frame with membrane device according to claim 1 or 2, characterized in that the upper end of the membrane bag (20) has an opening (21).

4. Plate frame with membrane device according to claim 3, characterized in that a first connector (22) is provided at the opening (21), and a second connector (11) is provided on top of the membrane frame (10), the first connector (22) being able to cooperate with the second connector (11).

5. Plate frame with membrane device according to claim 4, characterized in that said first connector (22) and said second connector (11) are small holes.

6. The plate frame with membrane device of claim 1, wherein the membrane frame (10) is a rectangular frame with hollow inside, the top of the membrane frame (10) is provided with a through hole (12), and an electrode plate can be inserted into the inside of the membrane frame (10) through the through hole (12).

7. The electrode plate frame with a membrane device according to claim 6, wherein the electrode plate is a cathode plate or an anode plate.

8. The plate frame with the membrane device according to claim 6, wherein a separation rod (13) is arranged on the membrane frame (10), the separation rod (13) is positioned at the outer edge of the membrane frame (10), and the separation rod (13) is connected with the top and the bottom of the membrane frame (10).

9. Plate frame with membrane device according to claim 1, characterized in that the membrane bag (20) is made of a polymeric permselective membrane.

10. The plate frame with membrane device according to claim 1, wherein the membrane frame (10) is an insulating corrosion resistant material.