Electrolytic tank for chlor-alkali chemical industry

Abstract

The utility model relates to the technical field of chlor-alkali industry, in particular to an electrolytic bath for chlor-alkali chemical industry, which comprises an electrolytic bath body, a slot is arranged in the middle of the inner wall of the electrolytic bath body, a plug-in frame is plugged in the slot, an ionic membrane is arranged on the plug-in frame, round holes communicated with the slot are arranged above two ends of the electrolytic bath body, and the round holes are communicated with the slot. Plug pins are slidably installed in the round holes, plug holes connected with the plug pins in an inserted mode are formed in the two ends of the plug frame, and a connecting plate is installed on one side of each plug pin. When a plug-in frame and an ionic membrane are installed, a worker pulls the L-shaped rod with two hands, the plug pin leaves the plug hole and drives the connecting plate to stretch the spring, then the L-shaped rod is rotated, the L-shaped rod is clamped into the arc-shaped groove, after the plug pin is limited, the worker can release the two hands, and after the plug pin is inserted into the plug-in frame, the L-shaped rod is rotated again; and then the bolts can be inserted into the insertion holes through the restoring force of the springs to limit the insertion frame, and the whole disassembly and assembly process is operated by only one worker, so that the operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of chlor-alkali industry technology, specifically to an electrolytic cell used in chlor-alkali chemical industry. Background Technology

[0002] The chlor-alkali industry is a chemical industry that produces chlorine and sodium hydroxide by electrolyzing a brine solution. The electrolytic cell is the core equipment in chlor-alkali production; through the electrolysis process, brine is decomposed into chlorine, hydrogen, and sodium hydroxide in the electrolytic cell.

[0003] An electrolytic cell generates chlorine gas by applying an electric current, causing chloride ions in brine to discharge at the anode and generate hydrogen gas by discharging at the cathode. At the same time, sodium hydroxide is generated near the cathode. An electrolytic cell typically consists of an anode and a cathode, with a diaphragm or mesh in between to prevent the mixing of chlorine and hydrogen gas and ensure production safety.

[0004] Chinese Utility Model Announcement No.: CN220012831U includes a tank body; a first sliding groove is symmetrically arranged on the inner wall of the tank body; a groove is opened on the top of the tank body on one side of the first sliding groove; a through hole connected to the first sliding groove is opened on the groove; an ion membrane assembly is slidably connected to the two first sliding grooves on both sides respectively; a fixing assembly includes an insert rod, a connecting rod and a pressure block, the insert rod is slidably arranged inside the through hole, the ion membrane assembly is provided with a slot adapted to the insert rod at the position corresponding to the insert rod, the connecting rod is vertically arranged in the groove, the bottom end of the connecting rod is connected to the insert rod, the pressure block is connected to the top of the connecting rod, and the pressure block is slidably engaged with the top of the tank body.

[0005] This invention allows for fast and efficient installation or disassembly of ion exchange membrane modules.

[0006] The applicant discovered some shortcomings in the use of the patent: when disassembling and assembling the ion exchange membrane, the staff needs to move the pressure block with both hands and does not have extra hands to operate the ion exchange membrane. Therefore, two staff members are required to operate it together, which is not convenient. Moreover, the spring is located in a narrow groove, and when the spring becomes fatigued and loses its elasticity after long-term use and needs to be replaced, the replacement is not convenient.

[0007] Therefore, this utility model designs an electrolytic cell for chlor-alkali chemical industry to solve the problems existing in the prior art. Utility Model Content

[0008] The purpose of this invention is to provide an electrolytic cell for chlor-alkali chemical industry to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an electrolytic cell for chlor-alkali chemical industry, comprising: an electrolytic cell body, a slot provided in the middle of the inner wall of the electrolytic cell body, a frame inserted into the slot, an ion membrane provided on the frame, round holes communicating with the slot being provided at both ends of the electrolytic cell body, pins slidably installed in the round holes, insertion holes for insertion of the pins being provided at both ends of the frame, a connecting plate installed on one side of the pin, a spring provided between the connecting plate and the electrolytic cell body, an L-shaped rod rotatably installed on one end of the pin, a fixing plate installed on the electrolytic cell body, and an arc-shaped groove for engaging with the L-shaped rod being provided at the top of the fixing plate.

[0010] Preferably, spring plates are installed at both ends of the spring, and the two spring plates are detachably installed to the electrolytic cell body and the connecting plate by bolts. The operator can remove the spring and spring plates from the electrolytic cell body and the connecting plate for replacement by turning the bolts.

[0011] Preferably, the L-shaped rod and the pin are rotatably mounted via a bearing, which facilitates the rotation of the L-shaped rod on the pin.

[0012] Preferably, both the outer wall of the L-shaped rod and the arc-shaped groove are provided with a rubber layer, which is made of rubber and can improve the frictional resistance between the L-shaped rod and the arc-shaped groove.

[0013] Preferably, one side of the L-shaped rod is provided with a cotton layer, which is made of sponge, to improve the comfort of the operator when rotating the L-shaped rod.

[0014] Preferably, the electrolytic cell body is equipped with a limiting rod that is slidably connected to the connecting plate. When the pin slides in the round hole, it drives the connecting plate to slide on the limiting rod. The limiting rod can limit the pin and prevent the pin from rotating.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this invention, when installing the insertion frame and ion membrane, the operator pulls the L-shaped rod with both hands to disengage the pin from the insertion hole and cause the connecting plate to stretch the spring. Then, the L-shaped rod is rotated to lock into the arc-shaped groove, limiting the pin. The operator can then release their hands, insert the insertion frame, and rotate the L-shaped rod again. The restoring force of the spring will then allow the pin to be inserted into the insertion hole, limiting the insertion frame. The entire disassembly and assembly process only requires one operator, making it more convenient. Moreover, since the spring is completely exposed without any obstruction, it is also convenient for the operator to replace the spring when it becomes fatigued and loses its elasticity after long-term use. Attached Figure Description

[0017] Figure 1 This is a front view diagram of the present invention after installation;

[0018] Figure 2 This is a front view diagram of the present invention after disassembly;

[0019] Figure 3 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0020] In the diagram: 1. Electrolytic cell body; 2. Slot; 3. Insert frame; 4. Ion membrane; 5. Round hole; 6. Pin; 7. Insertion hole; 8. Connecting plate; 9. Spring; 10. L-shaped rod; 11. Fixing plate; 12. Arc groove; 13. Spring plate; 14. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 An embodiment of this utility model provides an electrolytic cell for chlor-alkali chemical industry, comprising: an electrolytic cell body 1, a slot 2 provided in the middle of the inner wall of the electrolytic cell body 1, a frame 3 inserted into the slot 2, an ion membrane 4 provided on the frame 3, round holes 5 communicating with the slot 2 being provided at both ends of the electrolytic cell body 1, pins 6 being slidably installed in the round holes 5, insertion holes 7 for insertion of the pins 6 being provided at both ends of the frame 3, a connecting plate 8 being installed on one side of the pins 6, a spring 9 being provided between the connecting plate 8 and the electrolytic cell body 1, an L-shaped rod 10 being rotatably installed at one end of the pins 6, a fixing plate 11 being installed on the electrolytic cell body 1, and an arc-shaped groove 12 for engaging with the L-shaped rod 10 being provided on the top of the fixing plate 11.

[0023] Please see Figure 1-3 In this embodiment: spring plates 13 are installed at both ends of spring 9, and the two spring plates 13 are detachably installed to the electrolytic cell body 1 and the connecting plate 8 respectively by bolts 14.

[0024] Please see Figure 1-3 In this embodiment, the L-shaped rod 10 and the pin 6 are rotatably mounted via a bearing.

[0025] Please see Figure 1-3 In this embodiment, both the outer wall of the L-shaped rod 10 and the arc-shaped groove 12 are provided with rubber layers.

[0026] Please see Figure 1-3 In this embodiment: a cotton layer is provided on one side of the L-shaped rod 10.

[0027] Please see Figure 1-3 In this embodiment: a limiting rod that is slidably connected to the connecting plate 8 is installed on the electrolytic cell body 1.

[0028] Working principle: When the insertion frame 3 needs to be removed, the operator pulls the two L-shaped rods 10 with both hands, causing the pin 6 to leave the insertion hole 7 and the connecting plate 8 to stretch the spring 9. Then, the L-shaped rods 10 are rotated so that they are engaged in the arc groove 12, limiting the pin 6. The operator can then remove the insertion frame 3 and the ion membrane 4 from the slot 2. Only one operator is needed for operation, which is more convenient. During installation, the insertion frame 3 is first inserted into the slot 2. Then, the operator rotates the L-shaped rods 10 so that they leave the arc groove 12, releasing the pin 6. The restoring force of the spring 9 allows the pin 6 to be inserted into the insertion hole 7, fixing the insertion frame 3. When the spring 9 needs to be replaced after long-term use, it is easy for the operator to replace it since it is completely external. Moreover, the spring 9 and the spring plate 13 can be removed by simply unscrewing the bolt 14 and then replaced together. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrolytic cell for chlor-alkali chemical industry, comprising: An electrolytic cell body (1) is characterized in that: a slot (2) is provided in the middle of the inner wall of the electrolytic cell body (1), a frame (3) is inserted into the slot (2), an ion membrane (4) is provided on the frame (3), a round hole (5) communicating with the slot (2) is provided at both ends of the electrolytic cell body (1), a pin (6) is slidably installed in the round hole (5), a socket (7) for inserting the pin (6) is provided at both ends of the frame (3), a connecting plate (8) is installed on one side of the pin (6), a spring (9) is provided between the connecting plate (8) and the electrolytic cell body (1), an L-shaped rod (10) is rotatably installed at one end of the pin (6), a fixing plate (11) is installed on the electrolytic cell body (1), and an arc groove (12) for engaging with the L-shaped rod (10) is provided on the top of the fixing plate (11).

2. The electrolytic cell for chlor-alkali chemical industry according to claim 1, characterized in that: Both ends of the spring (9) are equipped with spring plates (13), and the two spring plates (13) are detachably installed to the electrolytic cell body (1) and the connecting plate (8) respectively by bolts (14).

3. The electrolytic cell for chlor-alkali chemical industry according to claim 1, characterized in that: The L-shaped rod (10) and the pin (6) are rotatably mounted together via a bearing.

4. An electrolytic cell for chlor-alkali chemical industry according to claim 1, characterized in that: The outer wall of the L-shaped rod (10) and the arc groove (12) are both provided with rubber layers.

5. An electrolytic cell for chlor-alkali chemical industry according to claim 1, characterized in that: One side of the L-shaped rod (10) is provided with a cotton layer.

6. An electrolytic cell for chlor-alkali chemical industry according to claim 1, characterized in that: The electrolytic cell body (1) is equipped with a limiting rod that is slidably connected to the connecting plate (8).

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