A production system for preparing hypochlorous acid disinfection products by electrolysis

Abstract

The invention discloses a production device for preparing hypochlorous acid disinfection products by electrolysis, relates to the technical field of hypochlorous acid disinfection, and comprises: an electrolysis unit and an electric control system are arranged in the middle position of the whole system, electrolysis tanks are arranged on both sides of the electrolysis unit, and a gas-liquid shunt unit is arranged between the two electrolysis tanks; an anode support is placed on one side of the electrolysis unit and horizontally arranged at the bottom of an electrolysis tank, a liquid output port at the lower end of the electrolysis tank is connected to a dilute brine buffer tank, an acid adding unit is arranged on one side of the electrolysis tank, a liquid output port at the lower end of the dilute brine buffer tank is connected to a salting tank, a lower output end of the salting tank is connected to the electrolysis tank, a gas output port is opened at the upper end of the electrolysis tank, and the gas output port is connected to a pipeline system, the salting tank, the dilute brine buffer tank and the electrolysis tank connected to the anode are all kept in a negative pressure state, and the problem of chlorine leakage is avoided to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of hypochlorous acid disinfection, and in particular to a production system for preparing hypochlorous acid disinfection products by electrolysis. Background Art

[0002] Hypochlorous acid disinfectant can effectively kill bacteria, viruses, fungi and other microorganisms, and has a strong broad-spectrum bactericidal ability. In addition, hypochlorous acid disinfectant also has a certain cleaning effect, which can remove stains and oil stains on the surface of objects. At the same time, hypochlorous acid disinfectant can decompose organic matter and eliminate odors. It is used for air purification, has less irritation and corrosion, and is safer to use. Chloric acid disinfection products play an important role in medical and health care, public places and household disinfection with their strong bactericidal and disinfection ability, cleaning and decontamination effect, deodorization function and relatively high safety.

[0003] At present, in the process of producing hypochlorous acid by electrolytic chlorine, there are few such devices and the technology is not mature enough. Chlorine is often not completely absorbed, or it is easily released after absorption. Incomplete absorption and inability to absorb chlorine dissolved in brine lead to low production efficiency. During the operation of the system or after shutdown, the chlorine dissolved in the brine can easily escape into the environment, which will lead to high chlorine content in the on-site environment and an undesirable working environment. In severe cases, it may even lead to the risk of chlorine poisoning. At the same time, the electrode capacity of traditional electrolytic equipment will be lost as the electrolysis proceeds, thereby affecting the production efficiency of hypochlorous acid.

[0004] Therefore, it is necessary to provide a production device for preparing hypochlorous acid disinfection products by electrolysis to solve the above problems. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a production device for preparing hypochlorous acid disinfection products by electrolysis, comprising:

[0006] The electrolysis unit and the electric control system are arranged in the middle of the whole system, and electrolysis tanks are arranged on both sides of the electrolysis unit, and a gas-liquid diversion unit is arranged between the two electrolysis tanks;

[0007] An anode support is placed on one side of the electrolysis unit and is horizontally arranged at the bottom of an electrolysis tank. The liquid outlet at the lower end of the electrolysis tank is connected to a dilute brine buffer tank. An acid adding unit is arranged on one side of the electrolysis tank. The liquid outlet at the lower end of the dilute brine buffer tank is connected to a salt tank. The lower output end of the salt tank is connected to the electrolysis tank. A gas outlet is provided at the upper end of the electrolysis tank. The gas outlet is connected to a pipeline system. The other end of the pipeline system is connected to a drying unit. The other end of the drying unit is connected to a vacuum pump. The other end of the vacuum pump is connected to the first absorption tank, the second absorption tank, and the third absorption tank;

[0008] The electrolysis tank, the diluted brine buffer tank, the salt tank, the pipeline system, the drying unit, the vacuum pump, the first absorption tank, the second absorption tank, the third absorption tank, and the acid adding unit are all fixed on the upper surface of the anode support;

[0009] The cathode support is placed on the other side of the electrolysis unit and is horizontally arranged at the bottom of another electrolysis tank. The output end of the electrolysis tank is connected to the cathode liquid cache tank, and the input end is connected to the softening unit. The softening unit is also connected to the salt tank, and the cathode liquid cache tank and the softening unit are both fixed on the cathode support.

[0010] Furthermore, as a preference, a partition plate is fixedly provided in the middle of the salt-forming tank, the partition plate divides the salt-forming tank into an upper stirring zone and a lower salt solution storage zone, and a switch valve connecting the stirring zone and the salt solution storage zone is vertically embedded on the partition plate, the stirring zone is provided with a salt-adding tank and a stirrer, and the salt-adding tank and the stirrer are both fixed at the upper end of the salt-forming tank.

[0011] Further, as a preference, the output end of the dilute brine buffer tank is connected to the stirring zone, and the output end of the salt solution storage zone is connected to the electrolysis tank adjacent to the salt tank.

[0012] Further, preferably, the first absorption tank, the second absorption tank, and the third absorption tank are all provided with input ends and output ends distributed up and down, wherein the upper input end is connected to the water delivery device, the lower input end is connected to the pipeline system, the upper output end is connected to the drying unit, and the lower output end is connected to the hypochlorous acid solution storage tank, and valve ports are provided at the connection of each port.

[0013] Further, preferably, the electrolytic tank comprises:

[0014] A tank body is fixedly mounted on the upper surface of the anode support or the cathode support, an upper partition plate and a lower partition plate are horizontally fixedly arranged on the inner side of the tank body, and the upper partition plate and the lower partition plate separate the tank body from an electrolysis area;

[0015] A fixed support frame is coaxially fixedly assembled on the upper surface of the tank body, a rotating threaded sleeve is rotatably arranged inside the fixed support frame, the rotating threaded sleeve is fixedly assembled on the output shaft of the driving motor, the driving motor is fixedly assembled on the upper end of the fixed support frame, an adjusting threaded rod is threadedly arranged inside the rotating threaded sleeve, a transmission shaft is fixedly assembled on the lower end of the adjusting threaded rod, and a plurality of electrode plates are arranged on the transmission shaft;

[0016] The upper and lower end surfaces of the tank body are both provided with opening and closing doors.

[0017] Furthermore, preferably, the upper partition plate and the lower partition plate are provided with through grooves as large as the electrode plates, through which the electrode plates can pass, and elastic sealing pads are provided at the edges of the through grooves of the upper partition plate and the lower partition plate.

[0018] Further, as a preference, a sliding groove for limiting the rotation of the electrode plate is provided on the inner wall of the area above the upper partition plate and below the lower partition plate inside the tank body, and a clamping fixture is provided below the rotating threaded sleeve.

[0019] Further, preferably, the electrode plate includes a self-locking device, the self-locking device is sleeved on the transmission shaft, and three groups of auxiliary electrode plates are embedded on the outer side of the self-locking device.

[0020] Further, as a preference, the electrode plate inside the electrolytic tank fixed on the anode support is a positive plate connected to the positive pole of the power supply, and the electrode plate inside the electrolytic tank fixed on the cathode support is a negative plate connected to the negative pole of the power supply.

[0021] A production system for preparing hypochlorous acid disinfection products by electrolysis, comprising the following steps:

[0022] S1. The concentrated brine in the electrolysis tank connected to the anode is electrolyzed by the electrolysis unit, and the pH value is controlled by the acid adding unit during the process. The concentrated brine is electrolyzed at the anode to produce chlorine, and part of the chlorine reacts with water to produce hypochlorous acid;

[0023] S2. As the electrolysis proceeds, the salt content in the electrolytic tank connected to the anode will decrease, and the solution in it will be pumped into the dilute brine buffer tank as a diluent for the salt tank;

[0024] S3. Then the salt water dissolved in advance in the salt tank is pumped to the electrolysis tank connected to the anode to continue electrolysis;

[0025] S4. The chlorine gas produced in the electrolytic tank connected to the anode and the dilute brine buffer tank will enter the pipeline system, and the mixed liquid in the dilute brine buffer tank can be used as the salt solution of the salt tank;

[0026] S5. The pipeline system will send the chlorine to the drying unit for drying, and then the vacuum pump will generate negative pressure to pump the chlorine into the first absorption tank. The chlorine that has not been completely absorbed will be sent to the drying unit for further drying, and then introduced into the second absorption tank. If there is still chlorine that has not been completely absorbed, it will be sent to the drying unit for further drying, and then introduced into the third absorption tank;

[0027] S6. During the operation of the equipment, when the product of the first absorption tank on the anode side reaches the specified value, the second absorption tank is switched to the first position of chlorine gas, and production continues. At the same time, the prepared product is taken away, and after the product is taken away, the first absorption tank is switched to the third position of chlorine gas;

[0028] S7. At the same time, the electrolyte in the electrolytic tank connected to the cathode of the electrolytic unit is circulated to the cathode side of the electrolytic cell through a pipeline pump. As the electrolysis time progresses, when the cathode liquid concentration is too high, half of the solution is pumped into the cathode liquid buffer tank, and then replenished from the soft water storage tank to the specified liquid level;

[0029] S8. The cathode liquid buffer tank is a sodium hydroxide solution, which can be extracted and stored for other uses;

[0030] S9. Before the device is working, the two electrolytic tanks can control the number of electrode plates in the electrolysis area by adjusting the distance between the upper partition plate and the lower partition plate, thereby controlling the electrolysis efficiency. During the electrolysis process in the electrolytic tank, the drive motor will maintain the overall electrolysis efficiency of the electrode plates by rotating to adjust the immersion state of different electrode plates in the electrolysis area.

[0031] Compared with the prior art, the present invention provides a production system for preparing hypochlorous acid disinfection products by electrolysis, which has the following beneficial effects:

[0032] In the present invention, multiple absorption tanks are provided to prevent the overflow of chlorine after absorption, which can improve production efficiency and working environment.

[0033] The present invention aims to solve the problem that in a production system for producing hypochlorous acid disinfection products by electrolysis and in the process of producing hypochlorous acid disinfection products, chlorine is not completely absorbed or escapes after absorption. At the same time, during the entire liquid transfer process, each tank is kept airtight from the external environment, and during the operation of the system, the salt tank, the dilute brine buffer tank and the electrolytic tank connected to the anode are all kept in a negative pressure state, thereby avoiding the problem of chlorine leakage to the greatest extent.

[0034] In the present invention, the electrolysis tank can adjust the electrolysis efficiency of the device by changing the contact area of ​​the electrode plate, so as to adapt to different electrolysis requirements. The arrangement of the electrode plate allows the electrolysis efficiency to be maintained by changing the relative height of the electrode plate without changing the area of ​​the electrode plate, so that the overall electrolysis efficiency is not lost with the electrolysis. At the same time, during the electrolysis process, the electrode plate can be rotated to reduce the obstruction of the bubble to the electrolysis process, reduce the tank resistance, thereby improving the current efficiency and the electrolysis efficiency, and at the same time drive the solution in the electrolytic cell to flow, thereby improving the mixing effect of the solution, making the concentration in the solution more uniform, and improving the uniformity and stability of the electrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of a production device for preparing hypochlorous acid disinfection products by electrolysis;

[0036] Figure 2 This is a schematic diagram of the structure of a production device for preparing hypochlorous acid disinfection products by electrolysis;

[0037] Figure 3 This is a schematic diagram of the gas-liquid flow direction of the salt tank, the diluted brine buffer tank, and the electrolysis tank;

[0038] Figure 4 This is a schematic diagram of the connection between the first absorption tank, the second absorption tank, and the third absorption tank;

[0039] Figure 5 It is a schematic diagram of the structure of the electrolytic tank;

[0040] Figure 6 Schematic diagram of the electrode plate structure;

[0041] In the figure: 1, anode support; 2, salt tank; 3, dilute brine buffer tank; 4, electrolysis tank; 5, electronic control system; 6, cathode support; 7, soft water storage tank; 8, gas-liquid diversion unit; 9, electrolysis unit; 10, drying unit; 11, vacuum pump; 12, pipeline system; 13, first absorption tank; 14, second absorption tank; 15, third absorption tank; 16, acid addition unit; 17, cathode liquid buffer tank; 18, soft water unit; 19, partition plate; 20, stirring Mixing area; 21. Salt solution storage area; 22. First switch valve; 23. Salt adding tank; 24. Agitator; 25. Second switch valve; 26. Third switch valve; 27. Electrolysis tank; 28. Upper partition plate; 29. ​​Lower partition plate; 30. Electrolysis area; 31. Fixed support frame; 32. Rotating threaded sleeve; 33. Driving motor; 34. Adjusting threaded rod; 35. Transmission shaft; 36. Electrode plate; 37. Opening and closing door; 38. Self-locking device; 39. Auxiliary electrode plate. DETAILED DESCRIPTION

[0042] See also Figure 1 to Figure 6 The present invention provides a production device for preparing hypochlorous acid disinfection products by electrolysis, comprising:

[0043] The electrolysis unit 9 and the electric control system 5 are arranged in the middle of the whole system. Electrolysis tanks 4 are arranged on both sides of the electrolysis unit 9, and a gas-liquid diversion unit 8 is arranged between the two electrolysis tanks 4.

[0044] An anode support 1 is placed on one side of an electrolytic unit 9 and is horizontally arranged at the bottom of an electrolytic tank 4. The liquid outlet at the lower end of the electrolytic tank 4 is connected to a dilute brine buffer tank 3. An acid adding unit 16 is arranged on one side of the electrolytic tank 4. The liquid outlet at the lower end of the dilute brine buffer tank 3 is connected to a salting tank 2. The lower output end of the salting tank 2 is connected to the electrolytic tank 4. A gas outlet is provided at the upper end of the electrolytic tank 4. The gas outlet is connected to a pipeline system 12. The other end of the pipeline system 12 is connected to a drying unit 10. The other end of the drying unit 10 is connected to a vacuum pump 11. The other end of the vacuum pump 11 is connected to a first absorption tank 13, a second absorption tank 14, and a third absorption tank 15;

[0045] The electrolytic tank 4, the diluted brine buffer tank 3, the salt tank 2, the pipeline system 12, the drying unit 10, the vacuum pump 11, the first absorption tank 13, the second absorption tank 14, the third absorption tank 15, and the acid adding unit 16 are all fixed on the upper surface of the anode support 1;

[0046] The cathode support 6 is placed on the other side of the electrolysis unit 9 and is horizontally arranged at the bottom of another electrolysis tank 4. The output end of the electrolysis tank 4 is connected to a cathode liquid cache tank 17, and the input end is connected to a soft water unit 18. The soft water unit 18 is also connected to the salt tank 2, and the cathode liquid cache tank 17 and the soft water unit 18 are both fixed on the cathode support 6;

[0047] As a preferred embodiment, the electrolytic tank 4 can adjust the electrolysis efficiency of the device by changing the contact area of ​​the electrode plate 38, thereby adapting to different electrolysis requirements, and preventing the device from reducing production efficiency due to damage to the electrode plate during the electrolysis process. The electrolytic unit 9 and the electronic control system 5 are located in the middle of the entire system; the electrolytic anode liquid inlet, anode gas outlet and cathode electrolyte liquid inlet, cathode gas outlet are distributed on both sides of the electrolytic unit 9, and are connected by a gas-liquid diversion unit 8. The electrolytic tank 4 connected to the anode enters the anode electrolytic cell for circulation, and needs to pass through the acid addition unit 1 6. Control the pH value. When the salt content of the concentrated brine is reduced, the solution in it is pumped into the diluted brine buffer tank 3. Then, the brine dissolved in advance in the salt tank 2 is pumped into the electrolysis tank 4 connected to the anode for further electrolysis. The solution in the diluted brine buffer tank 3 is pumped into the salt tank 2, and the salt for electrolysis is added through the salt tank 23. Then, the stirrer 24 is started to salt for next use. During the whole liquid transfer process, each tank is kept airtight from the external environment. During the operation of the system, the salt tank 2, the diluted brine buffer tank 3 and the electrolysis tank 4 connected to the anode are kept in a negative pressure state.

[0048] The electrolytic anode generates chlorine gas, which is then pumped to the drying unit 10 by a negative pressure generated by the vacuum pump 11. The chlorine gas generated by the electrolysis is pumped to the drying unit 10, where the salt tank 2, the diluted brine buffer tank 3 and the electrolytic tank 4 connected to the anode are connected to the chlorine gas delivery pipe (ensuring that the tank on the air inlet side of the vacuum pump 11 and the anode outlet of the electrolytic cell are maintained at a negative pressure state). After passing through the drying unit 10, the chlorine gas enters the first absorption tank 13 through the vacuum pump 11. The excess chlorine gas is dried and then absorbed by the secondary absorption tank 14. The excess gas in the second absorption tank 14 is dried and then passed through the third absorption tank 15. Continue to absorb to prevent chlorine from escaping and gradually absorb. The electrolyte in the electrolytic tank 4 connected to the cathode is circulated to the cathode side of the electrolytic cell through a pipeline pump. As the electrolysis time progresses, when the cathode liquid concentration is too high, the solution is pumped to the cathode liquid buffer tank 17 (half of it is sufficient, and then it is replenished from the soft water storage tank 7 to the specified liquid level). When the cathode liquid buffer tank 17 is full, the liquid can be extracted and stored for other uses (here it is sodium hydroxide solution). The soft water unit 18 automatically produces soft water, and the produced soft water is stored in the soft water storage tank 7 for standby use.

[0049] During the operation of the equipment, after the product of the first absorption tank 13 on the anode side reaches the specified value, it is switched to the second absorption tank 14 for continuous production, and the prepared product is taken away at the same time.

[0050] Further, a partition plate 19 is fixedly provided in the middle of the salt tank 2, and the partition plate 19 divides the salt tank 2 into an upper stirring zone 20 and a lower salt solution storage zone 21, and a switch valve 22 connecting the stirring zone 20 and the salt solution storage zone 21 is vertically embedded on the partition plate 19, and the stirring zone 20 is provided with a salt adding tank 23 and a stirrer 24, and the salt adding tank 23 and the stirrer 24 are both fixed at the upper end of the salt tank 2;

[0051] As a preferred embodiment, after the partition plate 19 divides the salt tank 2 into a stirring area 20 and a salt solution storage area 21, the salt tank 2 can replenish high-concentration salt solution to the anode-connected electrolytic tank 4 at any time during the operation of the device, thereby preventing the efficiency of the device from being affected by the reduction of electrolyte concentration during the electrolysis process.

[0052] Further, the output end of the diluted brine buffer tank 3 is connected to the stirring area 20, and the output end of the salt solution storage area 21 is connected to the electrolysis tank 4 adjacent to the salt tank 2;

[0053] As a preferred embodiment, the setting of the dilute brine buffer tank 3 allows the electrolytic tank 4 connected to the anode to free up a certain space to change its own concentration without affecting other components and without changing the volume of the electrolyte, thereby ensuring that the concentration of the electrolyte itself does not change with the progress of the electrolysis process, thereby greatly improving the electrolysis efficiency.

[0054] Further, the first absorption tank 13, the second absorption tank 14, and the third absorption tank 15 are all provided with input ends and output ends distributed up and down, wherein the upper input end 25 is connected to the water delivery device, the lower input end 26 is connected to the pipeline system 12, the upper output end 27 is connected to the drying unit 10, and the lower output end 28 is connected to the hypochlorous acid solution storage tank, and valve ports are provided at the connection of each port;

[0055] As a preferred embodiment, if the chlorine contains water, then when reacting with water, in addition to generating hypochlorous acid, harmful byproducts such as hydrogen chloride may also be generated. These byproducts may reduce the sterilization effect of hypochlorous acid and may even cause harm to the environment and human health. Therefore, in order to avoid the generation of these harmful byproducts, the newly generated chlorine and the chlorine discharged from the first absorption tank 13, the second absorption tank 14, and the third absorption tank 15 must be dried. The pipeline system 12 will send the chlorine to the drying unit 10 for drying, and then the vacuum pump 11 will generate negative pressure to dry the chlorine. The gas is pumped into the first absorption tank 13, and the chlorine that is not completely absorbed will be transported to the drying unit 10 for further drying, and then introduced into the second absorption tank 14. If there is still chlorine that is not completely absorbed, it will be transported to the drying unit 10 for further drying, and then introduced into the third absorption tank 15. During the operation of the equipment, after the product of the first absorption tank 13 on the anode side reaches the specified value, the second absorption tank 14 is switched to the first chlorine position, and production is continued. At the same time, the prepared product is taken away, and after the product is taken away, the first absorption tank 13 is switched to the third chlorine position. The above process is achieved by opening and closing each valve port.

[0056] Further, the electrolytic tank 4 comprises:

[0057] The tank body 29 is fixedly mounted on the upper surface of the anode support 1 or the cathode support 6, and an upper partition plate 30 and a lower partition plate 31 are horizontally fixedly arranged inside the tank body 29, and the upper partition plate 30 and the lower partition plate 31 separate the tank body 29 from an electrolysis area 32;

[0058] A fixed support frame 33 is coaxially fixedly assembled on the upper surface of the tank body 29, a rotating threaded sleeve 34 is rotatably arranged inside the fixed support frame 33, the rotating threaded sleeve 34 is fixedly assembled on the output shaft of a driving motor 35, the driving motor 35 is fixedly assembled on the upper end of the fixed support frame 33, an adjusting threaded rod 36 is threadedly arranged inside the rotating threaded sleeve 34, a transmission shaft 37 is fixedly assembled at the lower end of the adjusting threaded rod 36, and a plurality of electrode plates 38 are arranged on the transmission shaft 37;

[0059] The tank body 29 is provided with opening and closing doors 39 on both the upper and lower end surfaces;

[0060] As a preferred embodiment, the distance between the upper separator 30 and the lower separator 31 can be changed before the device is started, and the area of ​​the electrode plate 38 between the upper separator 30 and the lower separator 31 is the actual reaction area of ​​the electrode plate, and in actual use, the actual electrolysis efficiency of each electrode plate 38 participating in the reaction in the initial state should show a decreasing trend, and the sum of the actual electrode efficiencies of all electrode plates 38 participating in the reaction should be equal to the electrolysis efficiency to be achieved by the device (the remaining electrode plates 38 are normal), thereby achieving the electrolysis efficiency by changing the relative height of the electrode plates 38 without changing the area of ​​the electrode plates, so that the overall electrolysis efficiency is not lost with electrolysis.

[0061] Furthermore, the upper partition plate 30 and the lower partition plate 31 are provided with through grooves of the same size as the electrode plate 38, through which the electrode plate 38 can pass, and the upper partition plate 30 and the lower partition plate 31 are provided with elastic sealing pads at the edges of the through grooves;

[0062] As a preferred embodiment, the provision of an elastic sealing pad can prevent the leakage of electrolyte and chlorine gas during the movement of the electrode plate 38.

[0063] Furthermore, a sliding groove for limiting the rotation of the electrode plate 38 is provided on the inner wall of the tank body 29 above the upper partition plate 30 and below the lower partition plate 31, and a clamping fixture is provided below the rotating threaded sleeve 34;

[0064] As a preferred embodiment, the setting of the sliding groove can make the electrode plate 38 in the area above the upper partition plate 30 and below the lower partition plate 31 on the inner side of the tank body 29 always maintain a radial static state, preventing it from deflecting and not fitting with the through groove of the upper partition plate 30 or the lower partition plate 31, causing leakage of electrolyte and chlorine gas, and at the same time causing damage to the device. The clamping fixture can clamp the adjusting threaded rod 36. When it is in the clamping state, the electrode plate 38 located in the electrolysis area 32 and not overlapping with the through groove of the upper partition plate 30 and the lower partition plate 31 can rotate with the rotation of the driving motor 35, which helps the bubbles attached to the electrode surface to detach in time, which can reduce the obstruction of the bubbles to the electrolysis process, reduce the tank resistance, thereby improving the current efficiency and electrolysis efficiency, and at the same time drive the solution in the electrolytic cell to flow, thereby improving the mixing effect of the solution, making the concentration in the solution more uniform, and improving the uniformity and stability of the electrolysis. When in a non-clamping state, the relative height of the electrode plate 38 can change with the rotation of the driving motor 35.

[0065] Furthermore, the electrode plate 38 includes a self-locking device 40, which is mounted on the transmission shaft 37, and three sets of auxiliary electrode plates 41 are embedded on the outer side of the self-locking device 40;

[0066] As a preferred embodiment, the three sets of embedded auxiliary electrode plates 41 can effectively increase the contact area of ​​the electrode plates, improve the electrolysis efficiency, and facilitate replacement. When the fixed clamp is in a non-clamping state, the self-locking devices 40 of all electrode plates 38 are in a self-locking state. When the fixed clamp is in a clamping state, a portion of the electrode plates 38 that overlap with the through grooves of the upper partition plate 30 and the lower partition plate 31 and are located above the upper partition plate 30 and below the lower partition plate 31, their self-locking devices 40 are always in an open state, and they remain in a self-locking state.

[0067] Furthermore, the electrode plate 38 inside the electrolytic tank 4 fixed on the anode support 1 is a positive plate connected to the positive pole of the power supply, and the electrode plate 38 inside the electrolytic tank 4 fixed on the cathode support 6 is a negative plate connected to the negative pole of the power supply.

[0068] A production system for preparing hypochlorous acid disinfection products by electrolysis, comprising the following steps:

[0069] S1. The concentrated brine in the electrolytic tank 4 connected to the anode is electrolyzed by the electrolysis unit 9, and the pH value is controlled by the acid adding unit 16 during the process. The concentrated brine is electrolyzed at the anode to produce chlorine, and a portion of the chlorine reacts with water to produce hypochlorous acid;

[0070] S2. As the electrolysis proceeds, the salt content in the electrolytic tank 4 connected to the anode decreases, and the solution therein is pumped into the dilute brine buffer tank 3 as a diluent for the salt tank 2;

[0071] S3. The salt water dissolved in advance in the salt tank 2 is then pumped to the electrolysis tank 4 connected to the anode to continue electrolysis;

[0072] S4. The chlorine gas generated in the electrolytic tank 4 and the dilute brine buffer tank 3 connected to the anode will enter the pipeline system 12, and the mixed liquid in the dilute brine buffer tank 3 can be used as the salt solution of the salt tank 2;

[0073] S5. The pipeline system 12 will send the chlorine gas to the drying unit 10 for drying, and then the vacuum pump 11 will generate negative pressure to pump the chlorine gas into the first absorption tank 13. The chlorine gas that has not been completely absorbed will be sent to the drying unit 10 for further drying, and then introduced into the second absorption tank 15. If there is still chlorine gas that has not been completely absorbed, it will be sent to the drying unit 10 for further drying, and then introduced into the third absorption tank 14;

[0074] S6. During the operation of the equipment, after the product of the first absorption tank 13 on the anode side reaches the specified value, the second absorption tank 14 is switched to the first chlorine gas position, and production continues. At the same time, the prepared product is taken away, and after the product is taken away, the first absorption tank 13 is switched to the third chlorine gas position;

[0075] S7. At the same time, the electrolyte in the electrolytic tank 4 connected to the cathode of the electrolytic unit 9 is circulated to the cathode side of the electrolytic cell through a pipeline pump. As the electrolysis time progresses, when the cathode liquid concentration is too high, half of the solution is pumped into the cathode liquid buffer tank 17, and then replenished from the soft water storage tank 7 to the specified liquid level;

[0076] S8. The cathode liquid cache tank 17 is a sodium hydroxide solution, and can be extracted and stored for other use;

[0077] S9. Before the device is working, the two electrolysis tanks 4 can control the number of electrode plates 38 in the electrolysis area 32 by adjusting the distance between the upper partition plate 30 and the lower partition plate 31, thereby controlling the electrolysis efficiency. During the electrolysis process of the electrolysis tank 4, the drive motor 35 will maintain the overall electrolysis efficiency of the electrode plates 38 by rotating to adjust the immersion state of different electrode plates 38 in the electrolysis area 32.

[0078] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production device for preparing hypochlorous acid disinfection products by electrolysis, characterized in that: include: The electrolysis unit (9) and the electric control system (5) are arranged in the middle of the entire system, and electrolysis tanks (4) are arranged on both sides of the electrolysis unit (9), and a gas-liquid diversion unit (8) is arranged between the two electrolysis tanks (4); An anode support (1) is placed on one side of an electrolysis unit (9) and is horizontally arranged at the bottom of an electrolysis tank (4); a liquid outlet at the lower end of the electrolysis tank (4) is connected to a dilute brine buffer tank (3); an acid adding unit (16) is arranged on one side of the electrolysis tank (4); a liquid outlet at the lower end of the dilute brine buffer tank (3) is connected to a salting tank (2); a lower output end of the salting tank (2) is connected to the electrolysis tank (4); a gas outlet is provided at the upper end of the electrolysis tank (4); the gas outlet is connected to a pipeline system (12); the other end of the pipeline system (12) is connected to a drying unit (10); the other end of the drying unit (10) is connected to a vacuum pump (11); the other end of the vacuum pump (11) is connected to a first absorption tank (13), a second absorption tank (14), and a third absorption tank (15).

2. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 1, characterized in that: The electrolysis tank (4), the diluted brine buffer tank (3), the salt tank (2), the pipeline system (12), the drying unit (10), the vacuum pump (11), the first absorption tank (13), the second absorption tank (14), the third absorption tank (15), and the acid addition unit (16) are all fixed on the upper surface of the anode bracket (1).

3. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 1, characterized in that: The cathode support (6) is placed on the other side of the electrolysis unit (9) and is horizontally arranged at the bottom of another electrolysis tank (4). The output end of the electrolysis tank (4) is connected to a cathode liquid buffer tank (17), and the input end is connected to a soft water unit (18). The soft water unit (18) is also connected to the salt tank (2), and the cathode liquid buffer tank (17) and the soft water unit (18) are both fixed to the cathode support (6).

4. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 1, characterized in that: A partition plate (19) is fixedly arranged in the middle of the salt tank (2), and the partition plate (19) divides the salt tank (2) into an upper stirring zone (20) and a lower salt solution storage zone (21). A switch valve (22) connecting the stirring zone (20) and the salt solution storage zone (21) is vertically embedded on the partition plate (19). The stirring zone (20) is provided with a salt adding tank (23) and a stirrer (24), and the salt adding tank (23) and the stirrer (24) are both fixed at the upper end of the salt tank (2).

5. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 4, characterized in that: The output end of the dilute brine buffer tank (3) is connected to the stirring zone (20), and the output end of the salt solution storage zone (21) is connected to the electrolysis tank (4) adjacent to the salt tank (2).

6. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 1, characterized in that: The first absorption tank (13), the second absorption tank (14), and the third absorption tank (15) are each provided with an input end and an output end which are distributed up and down, wherein the upper input end (25) is connected to a water delivery device, the lower input end (26) is connected to a pipeline system (12), the upper output end (27) is connected to a drying unit (10), and the lower output end (28) is connected to a hypochlorous acid solution storage tank, and valve ports are provided at the connection points of each port.

7. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 4, characterized in that: The electrolytic tank (4) comprises: A tank body (29) is fixedly mounted on the upper surface of the anode support (1) or the cathode support (6), an upper partition plate (30) and a lower partition plate (31) are horizontally fixedly arranged inside the tank body (29), and the upper partition plate (30) and the lower partition plate (31) separate the tank body (29) from an electrolysis area (32); A fixed support frame (33) is coaxially fixedly mounted on the upper surface of the tank body (29); a rotating threaded sleeve (34) is rotatably mounted inside the fixed support frame (33); the rotating threaded sleeve (34) is fixedly mounted on the output shaft of a driving motor (35); the driving motor (35) is fixedly mounted on the upper end of the fixed support frame (33); an adjusting threaded rod (36) is threadedly mounted inside the rotating threaded sleeve (34); a transmission shaft (37) is fixedly mounted on the lower end of the adjusting threaded rod (36); and a plurality of electrode plates (38) are mounted on the transmission shaft (37); The upper and lower end surfaces of the tank body (29) are both provided with opening and closing doors (39).

8. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 5, characterized in that: The upper partition plate (30) and the lower partition plate (31) are provided with through grooves of the same size as the electrode plate (38) for the electrode plate (38) to pass through, and elastic sealing pads are provided at the edges of the through grooves provided on the upper partition plate (30) and the lower partition plate (31).

9. The production device for preparing hypochlorous acid disinfection products by electrolysis according to claim 6, characterized in that: A sliding groove for limiting the rotation of the electrode plate (38) is provided on the inner wall of the area above the upper partition plate (30) and below the lower partition plate (31) on the inner side of the tank body (29), and a clamping fixture is provided below the rotating threaded sleeve (34); The electrode plate (38) comprises a self-locking device (40), the self-locking device (40) is sleeved on the transmission shaft (37), and three groups of auxiliary electrode plates (41) are embedded on the outer side of the self-locking device (40); The electrode plate (38) inside the electrolytic tank (4) fixed on the anode support (1) is a positive plate connected to the positive pole of the power supply, and the electrode plate (38) inside the electrolytic tank (4) fixed on the cathode support (6) is a negative plate connected to the negative pole of the power supply.

10. A production system for preparing hypochlorous acid disinfection products by electrolysis, which adopts the production device for preparing hypochlorous acid disinfection products by electrolysis according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The concentrated brine in the electrolytic tank (4) connected to the anode is electrolyzed by the electrolysis unit (9), and the pH value is controlled by the acid addition unit (16) during the process. The concentrated brine is electrolyzed at the anode to produce chlorine, and a portion of the chlorine reacts with water to produce hypochlorous acid; S2. As the electrolysis proceeds, the salt content in the electrolytic tank (4) connected to the anode decreases, and the solution therein is pumped into the dilute brine buffer tank (3) as a diluent for the salt tank (2); S3. The pre-dissolved brine in the salt tank (2) is then pumped to the electrolysis tank (4) connected to the anode to continue electrolysis; S4. The chlorine gas generated in the electrolytic tank (4) connected to the anode and the dilute brine buffer tank (3) will enter the pipeline system (12), and the mixed liquid in the dilute brine buffer tank (3) can be used as the salt solution of the salt tank (2); S5. The pipeline system (12) will send the chlorine gas to the drying unit (10) for drying, and then the vacuum pump (11) will generate negative pressure to pump the chlorine gas into the first absorption tank (13). The chlorine gas that has not been completely absorbed will be sent to the drying unit (10) for further drying, and then introduced into the second absorption tank (15). If there is still chlorine gas that has not been completely absorbed, it will be sent to the drying unit (10) for further drying, and then introduced into the third absorption tank (14); S6. During the operation of the equipment, after the product of the first absorption tank (13) on the anode side reaches the specified value, the second absorption tank (14) is switched to the first chlorine gas position, and production continues. At the same time, the prepared product is taken away, and after the product is taken away, the first absorption tank (13) is switched to the third chlorine gas position; S7. At the same time, the electrolyte in the electrolytic tank (4) connected to the cathode of the electrolytic unit (9) is circulated to the cathode side of the electrolytic cell through a pipeline pump. As the electrolysis time progresses, when the cathode liquid concentration is too high, half of the solution is pumped into the cathode liquid buffer tank (17), and then replenished from the soft water storage tank (7) to a specified liquid level; S8. The cathode liquid buffer tank (17) is a sodium hydroxide solution, and can be extracted and stored for other uses; S9. Before the device is operated, the two electrolytic tanks (4) can control the number of electrode plates (38) in the electrolytic zone (32) thereof by adjusting the distance between the upper partition plate (30) and the lower partition plate (31), thereby controlling the electrolytic efficiency. During the electrolysis process of the electrolytic tank (4), the driving motor (35) will maintain the overall electrolytic efficiency of the electrode plates (38) by rotating to adjust the immersion state of different electrode plates (38) in the electrolytic zone (32).

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