CN220131969U - Sodium hypochlorite dosing device for salt electrolysis - Google Patents
Sodium hypochlorite dosing device for salt electrolysis Download PDFInfo
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- CN220131969U CN220131969U CN202320965129.0U CN202320965129U CN220131969U CN 220131969 U CN220131969 U CN 220131969U CN 202320965129 U CN202320965129 U CN 202320965129U CN 220131969 U CN220131969 U CN 220131969U
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- sodium hypochlorite
- electrolysis
- salt
- storage tank
- filter
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- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 79
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 71
- 150000003839 salts Chemical class 0.000 title claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 33
- 239000012267 brine Substances 0.000 claims abstract description 32
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 32
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000008399 tap water Substances 0.000 claims abstract description 16
- 235000020679 tap water Nutrition 0.000 claims abstract description 16
- 239000012266 salt solution Substances 0.000 claims abstract description 11
- 239000006227 byproduct Substances 0.000 claims abstract description 5
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 5
- 238000005554 pickling Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 239000000126 substance Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000000645 desinfectant Substances 0.000 description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- -1 chlorine ions Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009982 effect on human Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
A sodium hypochlorite dosing device for salt electrolysis, which relates to the technical field of water treatment. The device comprises a crude brine filter, a salt dissolving box, an electrolysis host, a sodium hypochlorite storage tank and a tap water tank which are sequentially connected, wherein a concentration analyzer is arranged on the tap water tank, and a mass flowmeter is arranged on a pipeline connecting the sodium hypochlorite storage tank with the tap water tank. The electrolysis host adopts the vertical, and the salt solution entry sets up in the bottom position, and the sodium hypochlorite solution export after the electrolysis sets up in the top position, and the salt solution flows through from bottom to top once only at a high speed, produces sodium hypochlorite solution and accessory substance hydrogen and gets into the sodium hypochlorite storage tank, and the hydrogen that the electrolysis produced is discharged through the hydrogen discharge port at sodium hypochlorite storage tank top. The sodium hypochlorite solution and the byproduct hydrogen generated by the utility model can enter the sodium hypochlorite liquid storage tank along with the water flow, the hydrogen can not stay in the electrolysis host, the safety of the device is improved, and meanwhile, the device can realize full-automatic intelligent control and can realize the standard control of the dosing amount.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a dosing device for disinfecting water by sodium hypochlorite in a water plant.
Background
Water is the basis for human survival, and most water sources cause pollution to different degrees due to industrial development, and the water contains industrial harmful substances and pollutants such as pathogenic substances, bacteria, microorganisms and the like. The introduction of water containing harmful substances can have a direct effect on human health. In order to realize the sterilization and disinfection treatment of the water body, chlorine is used in the past for disinfection. A certain amount of chlorine is introduced into the water, the chlorine and the water generate hypochlorous acid, and the hypochlorous acid has strong oxidizing property to kill harmful substances such as microorganisms, bacteria and the like in the water. However, the use of chlorine has been abandoned gradually due to its toxicity. The method for sterilizing tap water by using sodium hypochlorite instead of chlorine is a very commonly used method at present, and hypochlorous acid is formed by adding sodium hypochlorite into water and then hydrolyzing, so that the water body is sterilized. Sodium hypochlorite is used as a chlorine-containing disinfectant, and has good disinfection effect because of safe use, and becomes a suitable substitute for traditional liquid chlorine disinfection. Sodium hypochlorite in the existing water works is generally purchased as a finished product, and is unstable and is inevitably changed in transportation or under other conditions, so that the disinfectant is invalid or the efficiency is reduced. CN 218026379U discloses a sodium chloride electrolysis sodium hypochlorite device, which is characterized in that a plurality of water baffle plates are arranged in an electrolytic tank and distributed along the flowing direction of liquid in the electrolytic tank in a staggered way, electrode plates are uniformly distributed along the flowing direction of liquid in the electrolytic tank in a bent mode, and a plurality of lattice distribution water penetrating holes are formed in the electrode plates to increase the electrolysis contact area and improve the production efficiency. But the device has simple integral structure, can not be directly connected into a tap water system to automatically control the adding amount of sodium hypochlorite, and has low use efficiency. CN 209584384U discloses a novel tube-sheet type sodium hypochlorite electrolytic cell, the risk of cell body leakage has improved the security performance of electrolytic cell operation. However, the device adopts the same transverse structure as that of CN 218026379U, so that the efficiency is low, and the generated hydrogen is difficult to discharge, so that the device has potential safety hazard.
Disclosure of Invention
The utility model aims to solve the technical problem of preparing sodium hypochlorite by safe and stable electrolysis by the existing device method, and provides a salt electrolysis sodium hypochlorite dosing device which can be used for preparing and using an disinfectant on site, can be directly connected with a tap water system and can automatically realize the adding amount of sodium hypochlorite.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a salt electrolysis sodium hypochlorite charge device, includes crude brine filter, dissolved salt case, electrolysis host computer, sodium hypochlorite storage tank that connects gradually, crude brine filter, dissolved salt case, electrolysis host computer, sodium hypochlorite storage tank pass through the pipeline connection and install on the base, crude brine filter in be equipped with fore-and-aft filter screen, the top of crude brine filter is equipped with the filter multiway valve, crude brine gets into crude brine filter through the one way of filter multiway valve, gets into dissolved salt case from the other way of filter multiway valve after filtering through the filter screen, dissolved salt case export on the dissolved salt case sets up in dissolved salt case upper portion position, the salt solution in the dissolved salt case produces sodium hypochlorite solution after the electrolysis host computer and gets into the sodium hypochlorite storage tank; the salt solution inlet of the electrolysis host is arranged at the bottom position, the electrolyzed sodium hypochlorite solution outlet is arranged at the top position, the salt solution flows through the salt solution from bottom to top at a high speed, sodium hypochlorite solution and byproduct hydrogen are generated and enter the sodium hypochlorite storage tank, and the hydrogen generated by electrolysis is discharged through the hydrogen discharge port at the top of the sodium hypochlorite storage tank; the device also comprises a tap water tank connected with the sodium hypochlorite storage tank, a concentration analyzer is arranged on the tap water tank, and a mass flowmeter is arranged on a pipeline connected with the sodium hypochlorite storage tank and the tap water tank.
The electrolysis host machine is of a square or circular cylindrical structure, a fixed support is arranged on the inner wall of the electrolysis host machine, a cathode and an anode which are arranged are of a net plate structure and are erected and fixed on the fixed support, a hollow partition plate is arranged between the cathode and the anode, a cover plate is arranged at the top opening of the electrolysis host machine, and the cover plate and the opening are sealed through a sealing ring.
The bottom of the electrolysis host is provided with a brine inlet, and the top of the electrolysis host is provided with a sodium hypochlorite solution outlet.
The bottom of the coarse brine filter is provided with a filter drain outlet which is arranged at one side of a coarse brine inlet of the filter multiway valve and used for discharging filtered impurities.
The bottom of the electrolysis host is provided with an acid washing inlet and an acid washing outlet which are used for cleaning the inside of the electrolysis host.
The sodium hypochlorite solution inlet of the sodium hypochlorite storage tank is arranged at the lower part of the hydrogen gas discharge port.
The electrolysis host is provided with a touch screen controller which is electrically connected with an electrode, a mass flowmeter and a concentration analyzer in the electrolysis host and is used for controlling the device.
The principle of the utility model is as follows: when the brine containing chlorine ions flows through the electrolytic tank, direct current is supplied to the electrolytic tank, and sodium hypochlorite and hydrogen are generated in the electrolytic tank through reaction, wherein the hydrogen is discharged, and sodium hypochlorite solution is stored for standby.
Compared with the prior art, the utility model has the characteristics that:
1. compared with the existing salt electrolysis, the device has stronger electrode stability by adopting a unique coating, long service life and high electrolysis efficiency.
2. The device adopts an internet and remote operation and maintenance management system to realize full-automatic intelligent control and controllable dosing standard.
3. The electrolysis host (electrolysis tank) adopts the vertical, and salt water flows through from the electrolysis host bottom at a high speed, produces sodium hypochlorite solution and accessory substance hydrogen and can get into the sodium hypochlorite liquid reserve tank along the rivers, and hydrogen is discharged smoothly, can not stop in the electrolysis host, has promoted the security of device.
Drawings
FIG. 1 is a schematic diagram of the composition of the present utility model;
FIG. 2 is a schematic view of the internal structure of the electrolysis host according to the present utility model.
In the figure: 1. a crude brine filter; 2. a filter multiplex valve; 3. a filter drain outlet; 4. a base; 5. a salt dissolving tank; 6. an outlet of the salt dissolving box; 7. an electrolysis host; 8. a touch screen controller; 9. a hydrogen gas discharge port; 10. a liquid storage tank; 11. a mass flowmeter; 12. a tap water pool; 13. a concentration analyzer; 14. a pickling inlet; 15. a pickling outlet; 16. a fixed bracket; 17. a partition plate; 18. a cathode; 19. an anode; 20 cover plates; 21. a seal ring; 22. a sodium hypochlorite solution outlet; 23. a brine inlet.
Detailed Description
The utility model will be further described with reference to specific examples.
Referring to fig. 1, the salt electrolysis sodium hypochlorite dosing device comprises a crude brine filter 1, a salt dissolving box 5, an electrolysis host machine 7 and a sodium hypochlorite storage tank 10 which are sequentially connected, wherein the crude brine filter 1, the salt dissolving box 5, the electrolysis host machine 7 and the sodium hypochlorite storage tank 10 are connected through pipelines and are arranged on a base 4, a longitudinal filter screen is arranged in the crude brine filter 1, a filter multiway valve 2 is arranged at the top of the crude brine filter 1, crude brine enters the crude brine filter 1 through one path of the filter multiway valve 2, is filtered by the filter screen and enters the salt dissolving box 5 from the other path of the filter multiway valve 2, a salt dissolving box outlet 6 on the salt dissolving box 5 is arranged at the upper part of the salt dissolving box 5, and sodium hypochlorite solution generated by the electrolysis of the salt dissolving box 5 enters the sodium hypochlorite storage tank 10; the salt solution inlet of the electrolysis host 7 is arranged at the bottom position, the electrolyzed sodium hypochlorite solution outlet is arranged at the top position, the salt solution flows through the electrolysis host from bottom to top at a high speed, sodium hypochlorite solution and byproduct hydrogen are generated and enter the sodium hypochlorite storage tank 10, and the hydrogen generated by electrolysis is discharged through the hydrogen discharge port 9 at the top of the sodium hypochlorite storage tank 10; the sodium hypochlorite storage tank is characterized by further comprising a running water tank 12 connected with the sodium hypochlorite storage tank 10, a concentration analyzer 13 is arranged on the running water tank, and a mass flowmeter 11 is arranged on a pipeline connecting the sodium hypochlorite storage tank 10 and the running water tank 12.
The bottom of the coarse brine filter 1 is provided with a filter drain outlet 3 which is arranged on one side of a coarse brine inlet of the filter multiway valve 2 and used for discharging filtered impurities. The bottom of the electrolysis host 7 is provided with a pickling inlet 14 and a pickling outlet 15 for cleaning the inside of the electrolysis host 7. The sodium hypochlorite solution inlet of the sodium hypochlorite storage tank 10 is arranged at the lower part of the hydrogen gas discharge port 9.
The electrolysis host 7 is provided with a touch screen controller 8, and the touch screen controller 8 is electrically connected with electrodes, a mass flowmeter 11 and a concentration analyzer 13 in the electrolysis host 7 and is used for controlling the device.
Referring to fig. 2, an electrolysis host 7 of the utility model is in a square or circular cylindrical structure, a fixed bracket 16 is arranged on the inner wall of the electrolysis host 7, a cathode 18 and an anode 19 which are arranged are in a screen structure and are erected and fixed on the fixed bracket 16, a hollow partition 17 is arranged between the cathode 18 and the anode 19, a cover plate 20 is arranged at the top opening of the electrolysis host 7, and the cover plate 20 and the opening are sealed by a sealing ring 21. The bottom of the electrolysis host 7 is provided with a brine inlet 23, and the top is provided with a sodium hypochlorite solution outlet 22.
The electrolysis host 7 of the present utility model may be provided in single or multiple units, wherein the cathode 18 is hastelloy, the anode 19 is a stable anode (DSA) coated with noble metal oxide, and the anode 19 and the cathode 18 are separated by a PVDF separator 17 at a distance of 3-10 mm.
In the utility model, the electrolysis host machine 7 is vertically arranged, and brine flows through the electrolysis host machine from bottom to top at a high speed. The generated sodium hypochlorite solution and byproduct hydrogen enter a sodium hypochlorite storage tank 10, and the hydrogen generated by electrolysis is safely discharged to the atmosphere through a hydrogen discharge port 9 at the top of the sodium hypochlorite storage tank 10 and cannot be accumulated in the electrolytic tank. And the calcium-magnesium precipitate slows down the accumulation on the cathode 18 at high flow rate, prolonging the pickling cycle of the electrolysis host 7.
According to the utility model, the whole control of the device is realized through the touch screen controller 8, after the concentration analyzer 13 arranged in the tap water tank 12 detects the concentration of sodium hypochlorite in tap water, the obtained data is uploaded to the touch screen controller 8, and the dosing of the tap water tank 12 is realized through controlling the mass flowmeter 11, so that the full-automatic intelligent control is realized. Meanwhile, the utility model can also adopt two on-site manual/automatic sub-control modes. The system operation parameters can be adjusted and controlled on site through the touch screen controller 8. Meanwhile, the utility model can also add a remote monitoring system which is connected with a computer or a mobile phone and can send the running parameters of the system to the appointed computer or mobile phone at regular time, thereby obtaining the running parameters of the site to realize remote monitoring. The connection mode of the mobile phone and the computer can adopt a mature remote signal transmission and remote control mode in the prior art, and the utility model is not limited.
Claims (6)
1. A salt electrolysis sodium hypochlorite dosing device, which is characterized in that: the device comprises a crude brine filter (1), a salt dissolving box (5), an electrolysis host machine (7) and a sodium hypochlorite storage tank (10) which are sequentially connected, wherein the crude brine filter (1), the salt dissolving box (5), the electrolysis host machine (7) and the sodium hypochlorite storage tank (10) are connected through pipelines and are arranged on a base (4), a longitudinal filter screen is arranged in the crude brine filter (1), a filter multiway valve (2) is arranged at the top of the crude brine filter (1), crude brine enters the crude brine filter (1) through one path of the filter multiway valve (2), enters the salt dissolving box (5) from the other path of the filter multiway valve (2) after being filtered by the filter screen, a salt dissolving box outlet (6) on the salt dissolving box (5) is arranged at the upper position of the salt dissolving box (5), and sodium hypochlorite solution generated after the salt solution in the salt dissolving box (5) is electrolyzed by the electrolysis host machine (7) enters the sodium hypochlorite storage tank (10); the salt solution inlet of the electrolysis host (7) is arranged at the bottom position, the electrolyzed sodium hypochlorite solution outlet is arranged at the top position, the salt solution flows through the electrolysis host from bottom to top at a high speed, sodium hypochlorite solution and byproduct hydrogen are generated and enter the sodium hypochlorite storage tank (10), and the hydrogen generated by electrolysis is discharged through the hydrogen discharge port (9) at the top of the sodium hypochlorite storage tank (10); the device also comprises a tap water tank (12) connected with the sodium hypochlorite storage tank (10), a concentration analyzer (13) is arranged on the tap water tank, and a mass flowmeter (11) is arranged on a pipeline connected with the sodium hypochlorite storage tank (10) and the tap water tank (12).
2. The sodium hypochlorite electrolytic salt dosing device according to claim 1, characterized in that: the electrolysis host machine (7) is of a square or circular cylindrical structure, a fixed support (16) is arranged on the inner wall of the electrolysis host machine (7), a cathode (18) and an anode (19) which are arranged are of a screen structure and are erected and fixed on the fixed support (16), a hollow partition plate (17) is arranged between the cathode (18) and the anode (19), a cover plate (20) is arranged at the top opening of the electrolysis host machine (7), and the cover plate (20) and the opening are sealed by a sealing ring (21); the bottom of the electrolysis host machine (7) is provided with a brine inlet (23), and the top is provided with a sodium hypochlorite solution outlet (22).
3. The sodium hypochlorite electrolytic salt dosing device according to claim 1, characterized in that: the bottom of the coarse brine filter (1) is provided with a filter drain outlet (3) which is arranged at one side of a coarse brine inlet of the filter multiway valve (2) and used for discharging filtered impurities.
4. The sodium hypochlorite electrolytic salt dosing device according to claim 1, characterized in that: the bottom of the electrolysis main machine (7) is provided with a pickling inlet (14) and a pickling outlet (15) which are used for cleaning the inside of the electrolysis main machine (7).
5. The sodium hypochlorite electrolytic salt dosing device according to claim 1, characterized in that: the sodium hypochlorite solution inlet of the sodium hypochlorite storage tank (10) is arranged at the lower part of the hydrogen gas discharge port (9).
6. The sodium hypochlorite feeding device for salt electrolysis according to claim 1 or 2, characterized in that: the electrolysis host (7) is provided with a touch screen controller (8), and the touch screen controller (8) is electrically connected with an electrode, a mass flowmeter (11) and a concentration analyzer (13) in the electrolysis host (7) and is used for controlling the device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202320965129.0U CN220131969U (en) | 2023-04-25 | 2023-04-25 | Sodium hypochlorite dosing device for salt electrolysis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202320965129.0U CN220131969U (en) | 2023-04-25 | 2023-04-25 | Sodium hypochlorite dosing device for salt electrolysis |
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Publication Number | Publication Date |
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CN220131969U true CN220131969U (en) | 2023-12-05 |
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CN202320965129.0U Active CN220131969U (en) | 2023-04-25 | 2023-04-25 | Sodium hypochlorite dosing device for salt electrolysis |
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- 2023-04-25 CN CN202320965129.0U patent/CN220131969U/en active Active
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