Chlor-alkali electrolytic bath device separated by ion exchange membrane
By introducing a separation and extraction mechanism into the electrolytic cell device, the problems of cumbersome ion exchange membrane replacement process and toxic gas overflow are solved, rapid replacement and safe handling are achieved, and work efficiency and safety are improved.
Patent Information
- Application Number
- CN202422836725.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The ion exchange membrane replacement process in existing electrolyzer devices is cumbersome and complicated, resulting in low work efficiency. In addition, the mixture of chlorine and hydrogen may overflow to form toxic hydrogen chloride gas, endangering the safety of operators.
A chlor-alkali electrolyzer device separated by an ion exchange membrane was designed. It adopted a separation mechanism and an exhaust mechanism. The separation mechanism clamped the ion exchange membrane through a sealing ring to achieve rapid replacement. The exhaust mechanism sucked the overflowed chlorine and hydrogen through a vacuum pump and dissolved them in water for treatment to avoid gas diffusion.
It realizes the rapid replacement of ion exchange membranes, improves work efficiency, ensures operational safety, avoids the spread of toxic gases, and improves the safety of operators and the safety of the workplace.
Smart Images
Figure CN223422778U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrolytic cells, in particular to a chlor-alkali electrolytic cell device separated by an ion exchange membrane. Background Art
[0002] Ion exchange membranes are essential components of existing electrolyzers. However, in practice, replacing these membranes is often cumbersome and complex, significantly impacting operational efficiency and reducing the practical utility of the electrolyzer. Even more concerning, membrane replacement typically requires opening the electrolyzer's sealed lid, a process that can cause residual chlorine and hydrogen to escape. The mixture of these two gases can easily produce toxic hydrogen chloride gas, posing a serious threat to operator health and increasing workplace safety hazards. Therefore, we propose a chlor-alkali electrolyzer separated by an ion exchange membrane. Utility Model Content
[0003] The main purpose of the utility model is to provide a chlor-alkali electrolysis cell device separated by an ion exchange membrane, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A chlor-alkali electrolyzer device separated by an ion exchange membrane comprises an electrolyzer body, a gas extraction mechanism fixedly connected to the middle portion of the outer surface of the electrolyzer body, a lock fixedly connected to the upper left end and the middle portion of the right end of the electrolyzer body, a first feed pipe fixedly connected through the lower front end of the electrolyzer body, and a second feed pipe fixedly connected through the lower rear end of the electrolyzer body, a plurality of unit cells are provided inside the electrolyzer body, a separator mechanism is fixedly connected between the left and right cell walls of the plurality of unit cells, and a sealing cover is clamped to the middle portion of the outer surface of the electrolyzer body;
[0006] The middle of the left end and the middle of the right end of the sealing cover are both fixedly connected with locking blocks, the lower end of the sealing cover is provided with a sealing groove, the middle of the lower end of the sealing cover is provided with a plurality of card slots, the front of the upper end of the sealing cover is fixedly connected with a hydrogen main pipe, and the rear of the upper end of the sealing cover is fixedly connected with a chlorine main pipe.
[0007] Preferably, the partition mechanism comprises a partition frame, wherein openings are provided in the middle of the front and rear walls of the partition frame, an ion exchange membrane body is movably connected to the middle of the upper wall of the partition frame, a sealing ring is fixedly connected between the periphery of the front and rear walls of the partition frame, and the outer surface of the partition frame is fixedly connected to the wall of the cell. By adopting the above technical solution, the anode chamber and cathode chamber in the cell cell can be separated from each other.
[0008] Preferably, the upper portion of the outer surface of the ion exchange membrane body is engaged with the slot, and the two sealing rings are each configured as a rectangular frame structure, with the spacing between the opposing surfaces of the two sealing rings being smaller than the thickness of the ion exchange membrane body. By adopting this technical solution, the clamping and sealing effect of the sealing ring on the ion exchange membrane body can be enhanced, improving the sealing performance of the connection. Furthermore, the sealing ring is configured as a silicone material and is elastic.
[0009] Preferably, the front portions of several of the unit cells are configured as anode chambers, and the rear portions of several of the unit cells are configured as cathode chambers. By adopting the above technical solution, the generation of chlorine and hydrogen can be achieved.
[0010] Preferably, the exhaust mechanism includes a fixed frame, an air collecting pipe interpenetrating and fixedly connected to the periphery of the upper end of the fixed frame, a plurality of exhaust heads interpenetrating and fixedly connected to the periphery of the upper end of the air collecting pipe, a water tank interpenetrating and fixedly connected to the lower front end of the water tank, an exhaust pump interpenetrating and fixedly connected to the lower front end of the water tank, an air supply pipe interpenetrating and fixedly connected to the middle portion of the upper end of the exhaust pump and the middle portion of the front end of the air collecting pipe, and an inner frame wall of the fixed frame fixedly connected to the outer surface of the electrolytic cell body. By adopting the above technical solution, chlorine and hydrogen can be effectively prevented from diffusing into the air, thereby improving safety when replacing ion exchange membranes.
[0011] Preferably, the fixing frame and the gas collecting pipe are both configured as rectangular frame structures, and notches are provided on the left and right sides of the middle of the plurality of gas extraction heads on the gas collecting pipe.
[0012] By adopting the above technical solution, it is possible to fully extract the overflowed chlorine and hydrogen, and the gap can avoid the unlocking buckle.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. By setting up a separation mechanism, the ion exchange membrane can be taken out of the separation frame by pinching it and pulling it upwards, and then a new ion exchange membrane is inserted into the separation frame. The ion exchange membrane is squeezed and sealed by the elasticity of the two sealing rings, so that the ion exchange membrane can be quickly replaced, making the replacement process faster and simpler, and improving work efficiency.
[0015] 2、By setting the air extraction mechanism, through the start of the air extraction pump to produce suction force of several air extraction heads, the trace chlorine and hydrogen gas overflowed when the sealing cover is opened can be sucked, and then the mixed hydrogen chloride is input into the water storage tank through the gas conveying pipe, the hydrogen chloride is treated by using the characteristic that the hydrogen chloride is dissolved in water, the hydrogen chloride gas is prevented from diffusing into the air, and the safety of the operator is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the chlor-alkali electrolytic cell device with ion exchange membrane separation of the utility model;
[0017] Figure 2 It is an opening schematic view of the electrolytic cell body of the chlor-alkali electrolytic cell device with ion exchange membrane separation of the utility model;
[0018] Figure 3 It is a structure schematic view of the separation mechanism of the chlor-alkali electrolytic cell device with ion exchange membrane separation of the utility model;
[0019] Figure 4 It is a structure schematic view of the air extraction mechanism of the chlor-alkali electrolytic cell device with ion exchange membrane separation of the utility model.
[0020] In the drawing: 1, electrolytic cell body; 2, air extraction mechanism; 21, fixed frame; 22, gas collecting pipe; 23, air extraction head; 24, water storage tank; 25, air extraction pump; 26, gas conveying pipe; 3, lock catch; 4, first feeding pipe; 5, second feeding pipe; 6, unit cell; 7, separation mechanism; 71, separation frame; 72, through port; 73, ion exchange membrane body; 74, sealing ring; 8, sealing cover; 9, lock block; 10, sealing groove; 11, clamping groove; 12, hydrogen gas main pipe; 13, chlorine gas main pipe. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described in combination with specific implementation manners.
[0022] In the description of the utility model, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "another end" are the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated devices or elements must have a specific direction, a specific direction structure and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term '' install '' '' set up '' '' connect '' and the like, should do the broad sense understanding, for example '' connect '', can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0024] Please refer to Figure 1-4 The utility model provides a technical scheme:
[0025] A chlor alkali electrolytic cell device separated by ion exchange membrane, including electrolytic cell body 1, the middle part of the outer surface of electrolytic cell body 1 is fixedly connected with suction mechanism 2, the upper left end and the middle right end of electrolytic cell body 1 are all fixedly connected with lock catch 3, the lower front end of electrolytic cell body 1 is fixedly connected with first feed pipe 4, the lower rear end of electrolytic cell body 1 is fixedly connected with second feed pipe 5, the inside of electrolytic cell body 1 is provided with a plurality of unit tanks 6, the left tank wall and the right tank wall of a plurality of unit tanks 6 are fixedly connected with separation mechanism 7 in common, the middle part of the outer surface of electrolytic cell body 1 is clamped with sealing cover 8;
[0026] The middle left end and the middle right end of sealing cover 8 are all fixedly connected with lock block 9, the lower end of sealing cover 8 is provided with sealing groove 10, the middle lower end of sealing cover 8 is provided with a plurality of clamping grooves 11, the front upper end of sealing cover 8 is fixedly connected with hydrogen main pipe 12, the rear upper end of sealing cover 8 is fixedly connected with chlorine main pipe 13.
[0027] In the embodiment, separation mechanism 7 includes separation frame 71, the middle part of the front frame wall and the middle part of the rear frame wall of separation frame 71 are provided with through port 72, the middle part of the upper frame wall of separation frame 71 is movably connected with ion exchange membrane body 73, the periphery between the front frame wall and the rear frame wall of separation frame 71 is fixedly connected with sealing ring 74 in common, the outer surface of separation frame 71 is fixedly connected with the tank wall of unit tank 6;The upper part of the outer surface of ion exchange membrane body 73 is clamped with clamping groove 11, two sealing rings 74 are all provided with rectangular frame structure, and the spacing between the opposite faces of two sealing rings 74 is less than the thickness of ion exchange membrane body 73;The front of a plurality of unit tanks 6 is provided with anode chamber, and the rear of a plurality of unit tanks 6 is provided with cathode chamber.
[0028] Through the above scheme: when the sealing cover 8 is opened, the upper part of the outer surface of the ion exchange membrane body 73 is pinched and pulled upward to be taken out of the partition frame 71, and then the new ion exchange membrane body 73 is inserted into the partition frame 71, so that the outer surface of the ion exchange membrane body 73 contacts the opposite surfaces of the two sealing rings 74, and the elasticity of the two sealing rings 74 can squeeze the ion exchange membrane body 73, which can enhance the fixing effect of the ion exchange membrane body 73 and seal the connection of the ion exchange membrane body 73, so that the ion exchange membrane body 73 can be quickly replaced, thereby making the replacement process of the ion exchange membrane body 73 faster and simpler, improving work efficiency, and improving the actual practicality of the electrolytic cell device.
[0029] In this embodiment, the exhaust mechanism 2 includes a fixed frame 21, and an air collecting pipe 22 is interspersed and fixedly connected between the upper end periphery of the fixed frame 21, and a plurality of exhaust heads 23 are interspersed and fixedly connected around the upper end periphery of the air collecting pipe 22. A water tank 24 is fixedly connected to the front end of the fixed frame 21, and an exhaust pump 25 is interspersed and fixedly connected to the lower front end of the water tank 24. A gas supply pipe 26 is interspersed and fixedly connected between the middle part of the upper end of the exhaust pump 25 and the middle part of the front end of the air collecting pipe 22. The inner frame wall of the fixed frame 21 is fixedly connected to the outer surface of the electrolytic cell body 1; the fixed frame 21 and the air collecting pipe 22 are both configured as rectangular frame structures, and notches are provided on the left and right sides of the middle of the plurality of exhaust heads 23 on the air collecting pipe 22.
[0030] Through the above solution, by starting the vacuum pump 25 to generate suction force in the plurality of vacuum heads 23, the plurality of vacuum heads 23 can fully absorb the trace chlorine and trace hydrogen that overflow when the sealing cover 8 is opened. The gases are then collected through the gas collecting pipe 22 and input into the gas transmission pipe 26. The hydrogen chloride generated by the mixture of chlorine and hydrogen can then be input into the water in the water storage tank 24. By utilizing the characteristic that hydrogen chloride is soluble in water, the hydrogen chloride gas is absorbed and processed, thereby preventing the hydrogen chloride gas from diffusing into the air, improving the safety of the operators, and effectively avoiding safety hazards in the workplace.
[0031] It should be noted that, first, the anode liquid is diverted and input into the anode chambers of multiple unit cells 6 through the first feed pipe 4, and after adding part of the light brine to the refined brine from the secondary brine section, it is also diverted and input into the anode chambers of multiple unit cells 6 through the first feed pipe 4, and then the light alkali liquid from the alkali circulation system is diverted and input into the cathode chambers of multiple unit cells 6 through the second feed pipe 5, and a separator 7 is provided between the anode chamber and the cathode chamber of the unit cell 6. Finally, under the action of the electric current, the chloride ions in the anode chamber lose electrons and are oxidized on the anode to generate chlorine, which is precipitated from the anode and enters the chlorine main pipe 13, while the hydrogen ions in the cathode chamber gain electrons and are reduced on the cathode to generate hydrogen, which is precipitated from the cathode and enters the hydrogen main pipe 12, and then the chlorine and hydrogen are sent to the chlorine-hydrogen treatment section for treatment through the chlorine main pipe 13 and the hydrogen main pipe 12.
[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A chlor-alkali electrolytic cell device separated by an ion exchange membrane, comprising an electrolytic cell body (1), characterized in that: The middle portion of the outer surface of the electrolytic cell body (1) is fixedly connected to an exhaust mechanism (2); the upper left end and the middle right end of the electrolytic cell body (1) are fixedly connected to a lock buckle (3); the lower front end of the electrolytic cell body (1) is inserted and fixedly connected to a first feed pipe (4); the lower rear end of the electrolytic cell body (1) is inserted and fixedly connected to a second feed pipe (5); a plurality of unit cells (6) are provided inside the electrolytic cell body (1); a partition mechanism (7) is fixedly connected between the left and right cell walls of the plurality of unit cells (6); and a sealing cover (8) is clamped to the middle portion of the outer surface of the electrolytic cell body (1); The middle of the left end and the middle of the right end of the sealing cover (8) are both fixedly connected with a locking block (9), the lower end of the sealing cover (8) is provided with a sealing groove (10), the middle of the lower end of the sealing cover (8) is provided with a plurality of clamping grooves (11), the front of the upper end of the sealing cover (8) is inserted and fixedly connected with a hydrogen main pipe (12), and the rear of the upper end of the sealing cover (8) is inserted and fixedly connected with a chlorine main pipe (13).
2. The chlor-alkali electrolyzer device separated by an ion exchange membrane according to claim 1, characterized in that: The partition mechanism (7) includes a partition frame (71), wherein a through opening (72) is provided in the middle of the front frame wall and the middle of the rear frame wall of the partition frame (71), an ion exchange membrane body (73) is inserted and movably connected in the middle of the upper frame wall of the partition frame (71), a sealing ring (74) is fixedly connected between the periphery of the front frame wall and the periphery of the rear frame wall of the partition frame (71), and the outer surface of the partition frame (71) is fixedly connected to the groove wall of the unit groove (6).
3. The chlor-alkali electrolyzer device separated by an ion exchange membrane according to claim 2, characterized in that: The upper portion of the outer surface of the ion exchange membrane body (73) is engaged with the card slot (11), the two sealing rings (74) are both configured as rectangular frame structures, and the distance between the opposing surfaces of the two sealing rings (74) is smaller than the thickness of the ion exchange membrane body (73).
4. The chlor-alkali electrolyzer device separated by an ion exchange membrane according to claim 1, characterized in that: The front parts of the plurality of unit cells (6) are all configured as anode chambers, and the rear parts of the plurality of unit cells (6) are all configured as cathode chambers.
5. The chlor-alkali electrolyzer device separated by an ion exchange membrane according to claim 1, characterized in that: The air extraction mechanism (2) includes a fixed frame (21), an air collecting pipe (22) is interlaced and fixedly connected between the periphery of the upper end of the fixed frame (21), a plurality of air extraction heads (23) are interlaced and fixedly connected between the periphery of the upper end of the air collecting pipe (22), a water storage tank (24) is fixedly connected to the front end of the fixed frame (21), an air extraction pump (25) is interlaced and fixedly connected to the lower front end of the water storage tank (24), a gas supply pipe (26) is interlaced and fixedly connected between the middle part of the upper end of the air extraction pump (25) and the middle part of the front end of the air collecting pipe (22), and the inner frame wall of the fixed frame (21) is fixedly connected to the outer surface of the electrolytic cell body (1).
6. The chlor-alkali electrolyzer device separated by an ion exchange membrane according to claim 5, characterized in that: The fixing frame (21) and the gas collecting pipe (22) are both configured as rectangular frame structures, and a plurality of gas extraction heads (23) on the gas collecting pipe (22) are both provided with notches on the left and right sides of their middle portions.