CN112723503A - Tap water disinfection system - Google Patents
Tap water disinfection system Download PDFInfo
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- CN112723503A CN112723503A CN202110096235.5A CN202110096235A CN112723503A CN 112723503 A CN112723503 A CN 112723503A CN 202110096235 A CN202110096235 A CN 202110096235A CN 112723503 A CN112723503 A CN 112723503A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/14—Treatment of water in water supply networks, e.g. to prevent bacterial growth
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- Environmental & Geological Engineering (AREA)
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- Hydrology & Water Resources (AREA)
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- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a tap water disinfection system which comprises a new energy power generation module, a tap water conveying pipeline inlet, a tap water conveying pipeline outlet, a salt dissolving device, a salt water proportioning and supplying device, a sodium hypochlorite generating device and a control system, wherein the new energy power generation module is connected with the tap water conveying pipeline inlet; the outlet of the inlet of the tap water conveying pipeline is divided into two paths, one path is communicated with the tap water inlet of the brine proportioning and supplying device, the outlet of the brine proportioning and supplying device is communicated with the inlet of the sodium hypochlorite generating device, and the outlet of the sodium hypochlorite generating device is communicated with the outlet of the tap water conveying pipeline; the other path is communicated with a tap water inlet of the salt dissolving device, and an outlet of the salt dissolving device is communicated with a salt water inlet of the salt water proportioning and supplying device; and the new energy power generation module is electrically connected with the sodium hypochlorite generation device and the control system respectively.
Description
Technical Field
The invention relates to the technical field of tap water disinfection, in particular to a tap water disinfection system.
Background
The traditional tap water disinfection treatment technology mainly uses liquid chlorine disinfection to eliminate bacteria and organic matters in water, but because the liquid chlorine is unsafe in transportation, storage and use and easily forms carcinogens such as trichloromethane in the disinfection process, the advices for eliminating the liquid chlorine disinfection are increasing. The method for preparing sodium hypochlorite by electrolyzing saline water for tap water disinfection has the advantages of safety, few byproducts and the like, thereby having good market application prospect. In this context, more and more water plants are beginning to adopt the technology of preparing sodium hypochlorite for disinfection by electrolyzing saline water. At present, more than ninety percent of newly-built water plants adopt the disinfection technology, and old water plants are also upgraded and modified by using sodium hypochlorite for disinfection instead of the traditional disinfection mode.
The technology for preparing sodium hypochlorite by electrolyzing saline water adopts an electrolysis mode, so that the disinfection system consumes power energy when running, the power consumption of the disinfection system accounts for a larger proportion of the power consumption of the whole water plant, and the power expenditure is larger; according to the requirement of GB50013 'indoor water supply design standard', the electricity consumption of the water plant is at least a secondary load, and a standby power facility needs to be arranged if necessary, so that the expenditure of the water plant is also a great burden.
For small water plants and water supply pump stations, the amount of tap water to be treated is relatively small, the capacity and power consumption of a required disinfection system are relatively small, the cost for preparing sodium hypochlorite on site is relatively high, and the disinfection system has certain operation cost; for a large-scale water plant, the amount of tap water to be treated is large, the larger the capacity and energy consumption of a corresponding required disinfection system is, and the operation cost is greatly increased. Meanwhile, a clean water tank or a water storage tank is generally arranged in the water treatment process of a water works, tap water is injected into the clean water tank or the water storage tank, and then sodium hypochlorite is added into the clean water tank or the water storage tank, so that the tap water is disinfected in the clean water tank or the water storage tank, but the method has the problems of overlong mixing time and unsatisfactory effect after the sodium hypochlorite is added. For water plants and pumping stations, low energy consumption, low operating costs and high efficiency are the priority factors for each water plant.
Disclosure of Invention
The invention aims to provide a tap water disinfection system, which adopts a new energy technology to provide a low-cost and low-energy-consumption disinfection system for water plants and pump stations, solves the problems of power consumption and disinfection cost of a sodium hypochlorite disinfection system prepared by electrolyzing saline water, and has the advantages of high efficiency and good effect by directly installing a sodium hypochlorite generating device in a tap water conveying pipeline.
The invention provides a tap water disinfection system which comprises a new energy power generation module, a tap water conveying pipeline inlet, a tap water conveying pipeline outlet, a salt dissolving device, a salt water proportioning and supplying device, a sodium hypochlorite generating device and a control system, wherein the new energy power generation module is connected with the tap water conveying pipeline inlet;
the outlet of the inlet of the tap water conveying pipeline is divided into two paths, one path is communicated with the tap water inlet of the brine proportioning and supplying device, the outlet of the brine proportioning and supplying device is communicated with the inlet of the sodium hypochlorite generating device, and the outlet of the sodium hypochlorite generating device is communicated with the outlet of the tap water conveying pipeline; the other path is communicated with a tap water inlet of the salt dissolving device, and an outlet of the salt dissolving device is communicated with a salt water inlet of the salt water proportioning and supplying device;
and the new energy power generation module is electrically connected with the sodium hypochlorite generation device and the control system respectively.
Furthermore, the new energy power generation module comprises a new energy power generation device, an electric energy storage device and a rectification transformation device, the new energy power generation device is electrically connected with the electric energy storage device, the electric energy storage device is electrically connected with the rectification transformation device, and the rectification transformation device is respectively electrically connected with the sodium hypochlorite generation device and the control system.
Furthermore, a residual chlorine analyzer is arranged on a pipeline between the sodium hypochlorite generating device and the outlet of the tap water conveying pipeline, a flow meter is arranged on a pipeline between the brine proportioning supply device and the sodium hypochlorite generating device, and the control system is respectively in signal connection with the residual chlorine analyzer and the flow meter.
Furthermore, the tap water disinfection system further comprises a water softening device, an inlet of the water softening device is communicated with an inlet of the tap water conveying pipeline, an outlet of the water softening device is divided into two paths, one path is communicated with a tap water inlet of the saline water proportioning and supplying device, the other path is communicated with a tap water inlet of the salt dissolving device, and the control system is in signal connection with a control valve head of the water softening device.
Furthermore, control valves are arranged on an inlet pipeline of the water softening device and an outlet pipeline of the water softening device.
Further, a salt filling device is arranged at the top of the salt dissolving device, and the salt filling device is connected with the salt dissolving device.
Furthermore, the tap water disinfection system also comprises a bypass pipeline, wherein one end of the bypass pipeline is communicated with the inlet of the tap water conveying pipeline, and the other end of the bypass pipeline is communicated with the outlet of the tap water conveying pipeline.
Furthermore, a first electric valve is arranged on the bypass pipeline, and the control system is in signal connection with the first electric valve.
Furthermore, a second electric valve is arranged on a pipeline between the inlet of the tap water conveying pipeline and the saline water proportioning and supplying device, and the control system is in signal connection with the second electric valve.
Furthermore, an exhaust device is arranged on an outlet pipeline of the sodium hypochlorite generating device.
Further, the sodium hypochlorite generating device comprises a hollow cylinder, a plurality of polar plates, a first polar plate seat and a second polar plate seat, wherein the polar plates, the first polar plate seat and the second polar plate seat are positioned in the cylinder; the first polar plate seat and the second polar plate seat extend along the radial direction of the cylinder body, the first polar plate seat and the second polar plate seat are respectively positioned at two opposite ends in the cylinder body, the plurality of polar plates extend along the axial direction of the cylinder body, and the plurality of polar plates are arranged in the cylinder body at intervals; one part of the polar plates are fixedly connected with one side of the first polar plate seat close to the center of the cylinder body, and the other part of the polar plates are fixedly connected with one side of the second polar plate seat close to the center of the cylinder body; the new energy power generation module is electrically connected with the first polar plate seat and the second polar plate seat respectively.
The tap water disinfection system provided by the invention adopts the novel sodium hypochlorite generating device, the sodium hypochlorite generating device is arranged in the tap water conveying pipeline, and can be directly electrolyzed in the tap water conveying pipeline to generate sodium hypochlorite for disinfection. Meanwhile, sodium hypochlorite adding equipment is not needed, and the sodium hypochlorite adding equipment comprises sodium hypochlorite storage tanks, sodium hypochlorite adding pumps and other instrument equipment, so that the disinfection cost is reduced, the installation is convenient, and the floor area of the equipment is reduced.
Meanwhile, the new energy power generation technology is adopted to supply power to the sodium hypochlorite generating device, compared with the traditional power supply mode, the cost of the system is lower, and the power consumption problem and the disinfection cost problem of a sodium hypochlorite disinfection system prepared by electrolyzing saline water are solved.
Moreover, the tap water disinfection system can control the sodium hypochlorite generating device to generate enough sodium hypochlorite by controlling the new energy power generating module, namely adjusting the current voltage output by the new energy power generating module to the sodium hypochlorite generating device, so that the effective chlorine concentration in the conveying pipeline is kept at a set value, the residual chlorine value in the conveying pipeline is ensured, namely, a good disinfection effect is ensured, and the tap water disinfection system has the advantages of high controllability and flexible adjustment, and can be widely applied to various water plants, water supply pump stations and other disinfection places.
Drawings
Fig. 1 is a schematic structural view of a tap water disinfecting system according to an embodiment of the present invention.
FIG. 2 is a flow chart of a process for disinfecting tap water according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a sodium hypochlorite generator according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of fig. 3.
Fig. 5 is a schematic view of the mounting of the pole plate in the embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 1, the tap water disinfection system provided by the embodiment of the present invention includes a new energy power generation module 3, a tap water conveying pipeline inlet 1, a tap water conveying pipeline outlet 2, a salt dissolving device 4, a salt water proportioning supply device 5, a sodium hypochlorite generation device 6, and a control system 7.
The outlet of the tap water conveying pipeline inlet 1 is divided into two paths, one path is communicated with the tap water inlet of the brine proportioning and supplying device 5, the outlet of the brine proportioning and supplying device 5 is communicated with the inlet of the sodium hypochlorite generating device 6, and the outlet of the sodium hypochlorite generating device 6 is communicated with the tap water conveying pipeline outlet 2; the other path is communicated with a tap water inlet of the salt dissolving device 4, and an outlet of the salt dissolving device 4 is communicated with a brine inlet of the brine proportioning and supplying device 5.
And the new energy power generation module 3 is respectively electrically connected with the sodium hypochlorite generation device 6 and the control system 7.
Specifically, sodium hypochlorite generating device 6 is used for preparing sodium hypochlorite disinfectant by electrolyzing dilute saline water, and disinfects tap water in a conveying pipeline, new energy power generation module 3 is used for providing electric energy for sodium hypochlorite generating device 6, salt dissolving device 4 is used for dissolving salt to generate saturated salt water and storing the saturated salt water, and simultaneously provides saturated salt water for salt water proportioning and supplying device 5, salt water proportioning and supplying device 5 is used for proportioning the saturated salt water and the tap water and then mixing the saturated salt water and the tap water into the tap water conveying pipeline, and provides dilute saline water for sodium hypochlorite generating device 6, control system 7 is used for controlling the operation, alarm and interlocking of the whole tap water disinfection system, and control system 7 controls new energy power generation module 3 by controlling new energy power generation module 3, namely adjusting the current and voltage output from new energy power generation module 3 to sodium hypochlorite generating device 6 to control sodium hypochlorite generating device 6 to generate enough sodium hypochlorite, the concentration of residual chlorine in the conveying pipeline is kept at a set value so as to maintain good disinfection effect.
Preferably, sodium hypochlorite generating device 6 is novel pipeline formula sodium hypochlorite generating device, can the direct mount in the main line of running water conveying pipeline, and it disinfects to generate sodium hypochlorite through electrolysis in running water conveying pipeline, compares in prior art earlier on-the-spot preparation sodium hypochlorite, then throws the mode of sodium hypochlorite to in the clean water basin, and this novel pipeline formula sodium hypochlorite generating device can make sodium hypochlorite mix more evenly with the running water in the running water pipeline, and disinfection efficiency is higher, and the disinfection effect is better. Simultaneously, because this novel pipeline formula sodium hypochlorite generating device direct mount is in running water pipeline, so need not sodium hypochlorite and throw feeder apparatus, including sodium hypochlorite storage tank and sodium hypochlorite throw feeder apparatus such as pump, reduced the disinfection cost, simple to operate has reduced equipment area simultaneously.
Specifically, as shown in fig. 3 to 5, the sodium hypochlorite generating device 6 includes a hollow cylinder 61, an overflow barrier 62, a plurality of polar plates 65, a first polar plate holder 661, a second polar plate holder 662, a support column 67, and a fixing plate 68. The opposite ends of the cylinder 61 are provided with openings, and the plurality of pole plates 65, the first pole plate seats 661, the second pole plate seats 662, the support columns 67 and the fixing plates 68 are located in the cylinder 61.
Further, the number of the overflowing baffles 62 is two, the two overflowing baffles 62 are respectively connected with two opposite ends of the cylinder 61 in a sealing manner, flanges 611 are arranged at two opposite ends of the cylinder 61, the flanges 611 extend outwards from the outer surface of the cylinder 61 in the radial direction, and the cylinder 61 and the overflowing baffles 62 are connected through the flanges 611. Each of the overflow baffles 62 is provided with a plurality of through holes 621 in the axial direction, and the plurality of through holes 621 are used for the solution to flow into the cylinder 61 or flow out of the cylinder 61. The flow baffle 62 is used to adjust (slow) the flow rate of the solution into the cylinder 61 so that the dilute brine is better contacted with the plate 65 and the electrolytic reaction occurs.
Further, the plurality of pole plates 65 extend along the axial direction of the cylinder 61, and the plurality of pole plates 65 are arranged in the cylinder 61 in a staggered arrangement at intervals. The first plate seat 661 and the second plate seat 662 extend along a radial direction of the cylinder 61, the first plate seat 661 and the second plate seat 662 are respectively located at two opposite ends of the cylinder 61, and the first plate seat 661 and the second plate seat 662 are fixedly connected to an inner wall of the cylinder 61 through a fixing device (not shown). One part of the pole plates 65 is fixedly connected with the first pole plate seat 661 at a side close to the center of the cylinder 61 (as seen in the figure, the part of the pole plates 65 located at the left end in the cylinder 61 is fixedly connected with the first pole plate seat 661); another part of the pole plates 65 and the second pole plate seats 662 are fixedly connected at one side close to the center of the cylinder 61 (as viewed in the figure, the part of the pole plates 65 at the right end in the cylinder 61 is fixedly connected with the second pole plate seats 662); a part of the pole plates 65 (the part of the pole plates 65 located at the middle position in the cylinder 61) is not connected with the first pole plate seat 661 and the second pole plate seat 662, but is fixedly connected with the inner wall of the cylinder 61 through the insulating fixing plate 68 (since the electrolyte is conductive, the part of the pole plates 65 can be electrically connected with the pole plate seat 661/662 through the electrolyte during the electrolysis process, and further participate in the electrolysis reaction).
Furthermore, the number of the support columns 67 is multiple, a part of the support columns 67 is located between the first polar plate seat 661 and the overflowing baffle 62 on the left side of the cylinder 61, one end of the part of the support columns 67 is fixedly connected with the first polar plate seat 661, and the other end of the part of the support columns 67 abuts against the overflowing baffle 62 on the left side of the cylinder 61; the other part of the supporting columns 67 is located between the second plate seat 662 and the overflowing baffle 62 on the right side of the cylinder 61, one end of the part of the supporting columns 67 is fixedly connected with the second plate seat 662, and the other end of the part of the supporting columns 67 abuts against the overflowing baffle 62 on the right side of the cylinder 61. The support column 67 serves to prevent the first and second pole plate holders 661 and 662 from shifting left and right.
Further, the left and right ends of the cylinder 61 are respectively provided with a first electrical connection hole 63 and a second electrical connection hole 64, and the first electrical connection hole 63 and the second electrical connection hole 64 are respectively used for electrically connecting the first pole plate holder 661 and the second pole plate holder 662 with the new energy power generation module 3. Specifically, the sodium hypochlorite generating device 6 further comprises two conductive rods (not shown), wherein one end of one conductive rod is connected with the first electrode plate seat 661, and the other end is inserted into the first electrical connection hole 63 and extends out of the cylinder 61; one end of the other conducting rod is connected with the second pole plate seat 662, the other end of the other conducting rod is inserted into the second electric connection hole 64 and extends out of the cylinder 61, and the new energy power generation module 3 is respectively connected with the two conducting rods through external cables or copper bars (copper busbars), so that the first pole plate seat 661, the second pole plate seat 662 and the new energy power generation module 3 can be electrically connected.
Furthermore, a plurality of exhaust holes 69 are formed in the cylinder 61 at intervals, the exhaust holes 69 are connected with a hydrogen exhaust pipeline (not shown), and the exhaust holes 69 are used for exhausting hydrogen generated in the sodium hypochlorite generating device 6 during electrolysis.
Further, the new energy power generation module 3 includes a new energy power generation device 31, an electric energy storage device 32 and a rectification transformation device 33, the new energy power generation device 31 is electrically connected with the electric energy storage device 32, the electric energy storage device 32 is electrically connected with the rectification transformation device 33, and the rectification transformation device 33 is electrically connected with the sodium hypochlorite generation device 6 and the control system 7 respectively.
Specifically, the new energy power generation device 31 is used for converting new energy such as solar energy, wind energy and the like into electric energy, the electric energy storage device 32 is used for storing the electric energy generated by the conversion of the new energy power generation device 31, and the rectification transformation device 33 is used for providing the current voltage required by the sodium hypochlorite generation device 6. The embodiment of the invention adopts a new energy power generation technology to supply power to the sodium hypochlorite generating device 6, compared with the traditional power supply mode, the embodiment of the invention has lower cost, and solves the power consumption problem and the disinfection cost problem of a sodium hypochlorite disinfection system prepared by electrolyzing saline water.
Further, be equipped with chlorine analyzer 8 on the pipeline between sodium hypochlorite generating device 6 and the export 2 of running water conveying pipeline, be equipped with flowmeter 9 on the pipeline between salt solution ratio feeding device 5 and the sodium hypochlorite generating device 6, control system 7 respectively with chlorine analyzer 8 and flowmeter 9 signal connection.
Specifically, the sodium hypochlorite generator 6 generates sodium hypochlorite to sterilize harmful bacteria in tap water, and keeps residual chlorine in the tap water to prevent regeneration of harmful substances. The residual chlorine analyzer 8 is used for detecting the residual chlorine concentration in the tap water, if the residual chlorine concentration is not in the required range, the residual chlorine concentration is fed back to the control system 7, the control system 7 combines the flow information in the tap water pipeline measured by the flowmeter 9, and the current voltage output to the sodium hypochlorite generating device 6 by the rectification voltage transformation device 33 is adjusted, so that the sodium hypochlorite concentration generated by the sodium hypochlorite generating device 6 is changed, and the residual chlorine concentration is kept in the required range.
Preferably, the tap water disinfection system further comprises a water softening device 10, an inlet of the water softening device 10 is communicated with the inlet 1 of the tap water conveying pipeline, an outlet of the water softening device 10 is divided into two paths, one path is communicated with the tap water inlet of the saline solution proportioning and supplying device 5, the other path is communicated with the tap water inlet of the salt dissolving device 4, and the control system 7 is in signal connection with a control valve head of the water softening device 10.
Specifically, the water softening device 10 is used for softening tap water into softened water to reduce the concentration of calcium and magnesium ions in the tap water, thereby improving the quality of effluent water and reducing precipitation.
Further, a control valve 11 is arranged on both the inlet pipeline of the water softening device 10 and the outlet pipeline of the water softening device 10.
Further, a salt filling device 41 is arranged at the top of the salt dissolving device 4, the salt filling device 41 is connected with the salt dissolving device 4, and the salt filling device 41 is used for storing salt and adding salt into the salt dissolving device 4.
Preferably, the tap water disinfection system further comprises a bypass line 12, wherein one end of the bypass line 12 is communicated with the tap water conveying line inlet 1, and the other end of the bypass line 12 is communicated with the tap water conveying line outlet 2. When the equipment (except the water softening device 10) in the tap water disinfection system fails and the tap water disinfection system cannot be used, the bypass pipeline 12 is opened to ensure that the tap water conveying pipeline continuously supplies water.
Furthermore, a first electric valve 13 is arranged on the bypass pipeline 12, and the control system 7 is in signal connection with the first electric valve 13.
Furthermore, a second electric valve 14 is arranged on a pipeline between the inlet 1 of the tap water conveying pipeline and the saline water proportioning and supplying device 5, and the control system 7 is in signal connection with the second electric valve 14.
Further, be equipped with exhaust apparatus 15 on sodium hypochlorite generating device 6's the outlet pipeline, can produce hydrogen when sodium hypochlorite generating device 6 electrolysis salt water, exhaust apparatus 15 is used for discharging the hydrogen in the pipeline.
As shown in fig. 1 and 2, the main work flow of the tap water disinfection system according to the embodiment of the present invention is as follows:
1. when the tap water disinfection system normally works, the first electric valve 13 and the second electric valve 14 are closed, the control valve 11 is opened, the tap water enters the water softening device 10 for softening to generate softened water, one path of softened water enters the salt dissolving device 4 with salt to dissolve the salt to generate saturated salt water, the other path of softened water enters the salt water proportioning supply device 5 to be proportioned with the saturated salt water from the salt dissolving device 4 to generate dilute salt water solution with certain concentration, and the dilute salt water solution is supplied to the sodium hypochlorite generating device 6 for electrolysis.
New energy power generation facility 31 is with solar energy, new energy such as wind energy converts the electric energy into and stores and the power supply through electric energy storage device 32, rectification potential device 33 converts the electric energy into the required current voltage of sodium hypochlorite generating device 6 and supplies sodium hypochlorite generating device 6 to use, sodium hypochlorite generating device 6 begins to electrolyze dilute saline solution afterwards, produce sodium hypochlorite solution, sodium hypochlorite is direct to carry out disinfection and sterilization to the harmful bacterium in the running water, and make and keep surplus chlorine in the running water, prevent that the harmful substance from regenerating.
The residual chlorine analyzer 8 detects the residual chlorine concentration in the tap water, if the residual chlorine concentration is not in the required range, the residual chlorine concentration is fed back to the control system 7, the control system 7 combines the flow information in the tap water pipeline measured by the flowmeter 9 to adjust the current voltage output from the rectification voltage transformation device 33 to the sodium hypochlorite generation device 6, so that the sodium hypochlorite concentration generated by the sodium hypochlorite generation device 6 is changed, and the residual chlorine concentration is kept in the required range.
2. When the water softening device 10 fails and cannot be normally used, the control valve 11 and the first electric valve 13 are closed, the second electric valve 14 is automatically opened, the water softening device 10 does not participate in operation, tap water directly enters the salt dissolving device 4 and the salt water proportioning and supplying device 5 respectively, and the sodium hypochlorite generating device 6 is ensured to continuously operate.
3. When equipment (except the water softening device 10) in the tap water disinfection system fails and the tap water disinfection system cannot be used, the control valve 11 and the second electric valve 14 are closed, and the first electric valve 13 is automatically opened, so that tap water directly flows from the inlet 1 of the tap water conveying pipeline to the outlet 2 of the tap water conveying pipeline, and continuous water supply of the tap water conveying pipeline is ensured.
The invention has the beneficial effects that:
1. the sodium hypochlorite generator 6 is powered by a new energy power generation technology, compared with the traditional power supply mode, the cost of the sodium hypochlorite generator is lower, and the problems of power consumption and disinfection cost of a sodium hypochlorite disinfection system prepared by electrolyzing saline water are solved;
2. the novel pipeline type sodium hypochlorite generating device is adopted, and sodium hypochlorite can be directly generated by electrolysis in the tap water conveying pipeline for disinfection, compared with the mode that the sodium hypochlorite is firstly prepared on site and then added into the clean water tank in the prior art, the sodium hypochlorite and the tap water in the tap water disinfection system are more uniformly mixed, the disinfection efficiency is higher, the disinfection effect is better, and meanwhile, the continuous operation can be realized;
3. the sodium hypochlorite adding device comprises the sodium hypochlorite storage tank, the sodium hypochlorite adding pump and other instrument devices, so that the energy consumption is reduced, the disinfection cost is reduced, the installation is convenient, and the occupied area of the device is reduced;
4. the invention can control the amount of sodium hypochlorite generated by the sodium hypochlorite generating device 6 by controlling the current voltage output to the sodium hypochlorite generating device 6 by the rectification voltage transformation device 33, so that the concentration of residual chlorine in the conveying pipeline is kept within a required range, namely, a good disinfection effect is ensured, and the invention has the advantages of high controllability and flexible adjustment.
Therefore, the tap water disinfection system provided by the invention organically combines the novel pipeline type sodium hypochlorite generation device with the new energy power generation technology, has the advantages of low energy consumption, low cost, high efficiency and high controllability, can continuously operate, and can be widely applied to disinfection places such as various water plants, water supply pump stations and the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A tap water disinfection system is characterized by comprising a new energy power generation module (3), a tap water conveying pipeline inlet (1), a tap water conveying pipeline outlet (2), a salt dissolving device (4), a salt water proportioning supply device (5), a sodium hypochlorite generation device (6) and a control system (7);
the outlet of the tap water conveying pipeline inlet (1) is divided into two paths, one path is communicated with the tap water inlet of the brine proportioning and supplying device (5), the outlet of the brine proportioning and supplying device (5) is communicated with the inlet of the sodium hypochlorite generating device (6), and the outlet of the sodium hypochlorite generating device (6) is communicated with the tap water conveying pipeline outlet (2); the other path is communicated with a tap water inlet of the salt dissolving device (4), and an outlet of the salt dissolving device (4) is communicated with a brine inlet of the brine proportioning and supplying device (5);
and the new energy power generation module (3) is electrically connected with the sodium hypochlorite generation device (6) and the control system (7) respectively.
2. The tap water disinfection system according to claim 1, wherein the new energy power generation module (3) comprises a new energy power generation device (31), an electric energy storage device (32) and a rectification transformation device (33), the new energy power generation device (31) is electrically connected with the electric energy storage device (32), the electric energy storage device (32) is electrically connected with the rectification transformation device (33), and the rectification transformation device (33) is electrically connected with the sodium hypochlorite generation device (6) and the control system (7), respectively.
3. The tap water disinfection system of claim 1, wherein a residual chlorine analyzer (8) is disposed on a pipeline between the sodium hypochlorite generation device (6) and the tap water delivery pipeline outlet (2), a flow meter (9) is disposed on a pipeline between the brine proportioning supply device (5) and the sodium hypochlorite generation device (6), and the control system (7) is in signal connection with the residual chlorine analyzer (8) and the flow meter (9), respectively.
4. The tap water disinfection system according to claim 1, further comprising a softened water device (10), wherein an inlet of the softened water device (10) is communicated with the tap water delivery pipeline inlet (1), an outlet of the softened water device (10) is divided into two paths, one path is communicated with the tap water inlet of the saline solution proportioning feeding device (5), the other path is communicated with the tap water inlet of the salt dissolving device (4), and the control system (7) is in signal connection with a control valve head of the softened water device (10).
5. Tap water disinfection system according to claim 4, wherein the inlet line of the demineralization unit (10) and the outlet line of the demineralization unit (10) are provided with control valves (11).
6. Tap water disinfection system according to claim 1, wherein said salt dissolving device (4) is provided with a salt filling device (41) at the top, said salt filling device (41) being connected to said salt dissolving device (4).
7. Tap water disinfection system according to claim 1, further comprising a bypass line (12), wherein one end of the bypass line (12) is in communication with the tap water supply line inlet (1) and the other end is in communication with the tap water supply line outlet (2).
8. Tap water disinfection system according to claim 7, wherein a first electric valve (13) is arranged on the bypass line (12), and the control system (7) is in signal connection with the first electric valve (13).
9. Tap water disinfection system according to claim 1, wherein a second electric valve (14) is provided in the line between the tap water supply line inlet (1) and the brine proportioning feeding means (5), and the control system (7) is in signal connection with the second electric valve (14).
10. Tap water disinfection system according to claim 1, wherein said sodium hypochlorite generation means (6) comprises a hollow cylinder (61) and a plurality of pole plates (65), a first pole plate seat (661) and a second pole plate seat (662) located inside said cylinder (61); the first pole plate seat (661) and the second pole plate seat (662) extend along the radial direction of the cylinder (61), the first pole plate seat (661) and the second pole plate seat (662) are respectively located at two opposite ends in the cylinder (61), the plurality of pole plates (65) extend along the axial direction of the cylinder (61), and the plurality of pole plates (65) are arranged in the cylinder (61) in a spaced arrangement; one part of the polar plates (65) is fixedly connected with the first polar plate seat (661) at one side close to the center of the cylinder (61), and the other part of the polar plates (65) is fixedly connected with the second polar plate seat (662) at one side close to the center of the cylinder (61); the new energy power generation module (3) is electrically connected with the first pole plate seat (661) and the second pole plate seat (662) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096235.5A CN112723503A (en) | 2021-01-25 | 2021-01-25 | Tap water disinfection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110096235.5A CN112723503A (en) | 2021-01-25 | 2021-01-25 | Tap water disinfection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112723503A true CN112723503A (en) | 2021-04-30 |
Family
ID=75593525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110096235.5A Pending CN112723503A (en) | 2021-01-25 | 2021-01-25 | Tap water disinfection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112723503A (en) |
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2021
- 2021-01-25 CN CN202110096235.5A patent/CN112723503A/en active Pending
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