CN102351303A - Secondary chlorine dosing system based on real-time feedback - Google Patents
Secondary chlorine dosing system based on real-time feedback Download PDFInfo
- Publication number
- CN102351303A CN102351303A CN2011103088237A CN201110308823A CN102351303A CN 102351303 A CN102351303 A CN 102351303A CN 2011103088237 A CN2011103088237 A CN 2011103088237A CN 201110308823 A CN201110308823 A CN 201110308823A CN 102351303 A CN102351303 A CN 102351303A
- Authority
- CN
- China
- Prior art keywords
- real
- time feedback
- pipeline
- monitoring equipment
- chlorine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000460 chlorine Substances 0.000 title abstract description 21
- 229910052801 chlorine Inorganic materials 0.000 title abstract description 21
- 125000001309 chloro group Chemical group Cl* 0.000 title abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 28
- 238000005660 chlorination reaction Methods 0.000 claims description 27
- 239000000126 substance Substances 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 29
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Chlorhexidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 description 1
- 229960003260 chlorhexidine Drugs 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a secondary chlorine dosing system based on real-time feedback, which comprises a water inlet pipeline, a circulating pump, a first check valve, a sodium hypochlorite generator, a second check valve, online monitoring equipment, a rotameter, a dosing pump, a water outlet pipeline, an electromagnetic flowmeter and a PLC (Programmable Logic Controller) control cabinet. The secondary chlorine dosing system has the beneficial effects that the online monitoring equipment is utilized to carry out the real-time feedback to the secondary chlorine dosing effect; on this basis, the chlorine dosage is automatically controlled by a PLC to form a real-time feedback and adjustment process; and finally, the best chlorine dosing effect is achieved.
Description
Technical field
The present invention relates to a kind of tap water treatment technology, relate in particular to a kind of secondary chlorination system that the town and country one supplies water that is used for based on real-time feedback.
Background technology
To the deficiency and the needs of controlling DBPs, the security of increasing water quality in the water of conventional chlorination method, " secondary chlorination " becomes the focus that industry is paid close attention to gradually.This method is in pipe network, to select a series of certain location as " secondary chlorination point ", tap water is sterilized once more, to satisfy the chlorination mode of the required minimum chlorine residue level of water node.U.S.EPA is defined as the measure that improves residual chlorine concentration in the insufficient zone of water supply network chlorine residue with the secondary chlorination, adds usually in dried up factory zone far away.In theory, should have following advantage than conventional chlorination method secondary chlorination:
1. keep chlorine residue spatial and temporal distributions relatively uniformly, help to solve the insufficient problem of pipe network periphery residual chlorine concentration;
2. suppress the sterilization side reaction, reduce DBPs.The secondary chlorination can reduce the reaction contact time of chlorine and water body in theory, thereby reaches the effect that reduces DBPs.
3. can reduce total chlorine dosage.U.S.EPA also recommends water factory when the control disinfectant consumption, to consider the favourable part that secondary adds.The theoretical foundation that the secondary chlorination reduces total chlorine dosage is following:
(1) spatial and temporal distributions of uniform more residual chlorine concentration can reduce the concentration that is evenly distributed of chlorine residue, thereby reduces the mean rate that chlorine declines and reacts;
(2) each secondary chlorination point only needs confirm chlorine dosage according to its coverage, thereby effectively reduced the residence time of chlorine in pipe network, has reduced the chlorine quality consumption that reaction causes that declines then.
4. under the prerequisite of keeping the chlorine dosage economy, do not reduce the reliability of ductwork water quality, reduce the pipe network risk that water quality worsens rapidly after operational trouble occurring or suffering artificial destruction to a certain extent.
It seems that totally the secondary chlorination can improve the water quality level of water supply network, can reduce the running cost of pipe network again.And because the secondary chlorination can significantly reduce the dosage of chlorhexidine-containing disinfectant; Therefore also be the means that effectively suppress disinfection byproduct (DBP); There are some researches show; There are positive correlation in the growing amount of chlorine disinfection by-product (CDBPs) and the dosage of chlorine, reduce the growing amount that chlorine dosage can effectively reduce CDBPs in the water.
Summary of the invention
The objective of the invention is to the deficiency to prior art, a kind of secondary chlorination system based on real-time feedback is provided, the present invention can carry out the dosage of real time altering secondary chlorination according to the variation of water quality data, and it is reasonable to make it economical and effective.
The objective of the invention is to realize through following technical scheme: a kind of secondary chlorination system based on real-time feedback, it comprises: suction culvert, recycle pump, first vacuum breaker, hypochlorite generator, second vacuum breaker, on-line monitoring equipment, spinner-type flowmeter, chemicals feed pump, outlet pipeline, magnetic flow meter and PLC housing; Wherein, Said recycle pump and spinner-type flowmeter are installed on the pipeline between suction culvert and the outlet pipeline successively; Hypochlorite generator's import is received on the pipeline between recycle pump and the spinner-type flowmeter through first vacuum breaker, and hypochlorite generator's outlet is received on the outlet pipeline through chemicals feed pump; On-line monitoring equipment is received on the pipeline between recycle pump and the spinner-type flowmeter through second vacuum breaker, and on-line monitoring equipment, chemicals feed pump and magnetic flow meter link to each other with the PLC housing through signal wire respectively.
The present invention has following technique effect:
1, mostly chlorinating equipment in the past is to be applied to water factory or phreatic water is carried out chlorination, though had much about the theoretical investigation and the pertinent literature of secondary chlorination, directly is used for midway the secondary chlorination still first.
2, native system has reasonable assurance for solving the water quality safety problem (particularly chlorination problem) that occurs in the one water supply of town and country.
3, utilized on-line monitoring equipment, can feed back in real time secondary chlorination effect, and on this basis, control chlorine dosage automatically, formed the process of a real-time feedback adjustment, reached the optimal effectiveness of chlorination at last through PLC.
Description of drawings
Fig. 1 is the structure iron of native system;
Among the figure, suction culvert 1, recycle pump 2, first vacuum breaker 3, hypochlorite generator 4, second vacuum breaker 5, on-line monitoring equipment 6, spinner-type flowmeter 7, chemicals feed pump 8, outlet pipeline 9, magnetic flow meter 10, PLC housing 11, signal wire 12.
Embodiment
As shown in Figure 1, the secondary chlorination system that the present invention is based on real-time feedback comprises: suction culvert 1, recycle pump 2, first vacuum breaker 3, hypochlorite generator 4, second vacuum breaker 5, on-line monitoring equipment 6, spinner-type flowmeter 7, chemicals feed pump 8, outlet pipeline 9, magnetic flow meter 10, PLC housing 11.
Recycle pump 2 and spinner-type flowmeter 7 are installed on the pipeline between suction culvert 1 and the outlet pipeline 9 successively; Hypochlorite generator 4 import is received on the pipeline between recycle pump 2 and the spinner-type flowmeter 7 through first vacuum breaker 3, and hypochlorite generator 4 outlet is received on the outlet pipeline 9 through chemicals feed pump 8.On-line monitoring equipment 6 is received on the pipeline between recycle pump 2 and the spinner-type flowmeter 7 through second vacuum breaker 5, and on-line monitoring equipment 6, chemicals feed pump 8 and magnetic flow meter 10 link to each other with PLC housing 11 through signal wire 12 respectively.
It is Guangdong China board SZ037 product that recycle pump 2 can adopt model; Hypochlorite generator 4 can adopt the small-sized hypochlorite generator of SCIYEE NT-C series; It is that product, the pipeline of MILTON ROY GM0050 can be pvc pipe that chemicals feed pump 8 can adopt model; But all be not limited thereto; With 6 imports of on-line monitoring equipment vacuum breaker all has been installed hypochlorite generator 4 before, the refluence of anti-sealing.The effect of spinner-type flowmeter 7 is that whether water speed can reach requirement in the viewing system, reduces the retardation time of water quality monitoring (WQM).PLC housing 11 links to each other with magnetic flow meter 10, on-line monitoring equipment 6 and chemicals feed pump 8 through signal line 12.What magnetic flow meter 10 was surveyed is the flow velocity in the water supply main pipe.
The method of operation of the present invention is following: running water gets into the secondary chlorination system from the water supply main pipe by inlet pipeline 1; Through water circulation speed in the circulating pump 2 quickening systems; A part of then running water gets into hypochlorite generator's 4 preparation finite concentration saline solutions; The saline solution electrolysis produces certain density liquor natrii hypochloritis; By chemicals feed pump 8 controls the liquor natrii hypochloritis is pumped into outlet pipeline 9; Get into the water supply main pipe; Another part running water then forms a loop; Also get back to the water supply main pipe, and in the middle of pipeline, supply water for on-line monitoring equipment 6 by second check-valves 5 by outlet pipeline 9.PLC housing 11 is accepted the signal of magnetic flow meter 10 and on-line monitoring equipment 6 through signal line 12; The aperture of the algorithm controls chemicals feed pump 8 that process presets; Regulate dosage; Make the most economical and chlorination best results of dosage, make chlorine residue in the terminal tap water of pipe network can reach the value (> 0.05mg/L of national drinking water standard (GB5749-2006) defined).
Claims (1)
1. secondary chlorination system based on real-time feedback; It is characterized in that it comprises: suction culvert (1), recycle pump (2), first vacuum breaker (3), hypochlorite generator (4), second vacuum breaker (5), on-line monitoring equipment (6), spinner-type flowmeter (7), chemicals feed pump (8), outlet pipeline (9), magnetic flow meter (10) and PLC housing (11) etc.; Wherein, Said recycle pump (2) and spinner-type flowmeter (7) are installed on the pipeline between suction culvert (1) and the outlet pipeline (9) successively; Hypochlorite generator's (4) import is received on the pipeline between recycle pump (2) and the spinner-type flowmeter (7) through first vacuum breaker (3), and hypochlorite generator's (4) outlet is received on the outlet pipeline (9) through chemicals feed pump (8); On-line monitoring equipment (6) is received on the pipeline between recycle pump (2) and the spinner-type flowmeter (7) through second vacuum breaker (5), and on-line monitoring equipment (6), chemicals feed pump (8) and magnetic flow meter (10) link to each other with PLC housing (11) through signal wire (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103088237A CN102351303A (en) | 2011-10-13 | 2011-10-13 | Secondary chlorine dosing system based on real-time feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103088237A CN102351303A (en) | 2011-10-13 | 2011-10-13 | Secondary chlorine dosing system based on real-time feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102351303A true CN102351303A (en) | 2012-02-15 |
Family
ID=45574985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103088237A Pending CN102351303A (en) | 2011-10-13 | 2011-10-13 | Secondary chlorine dosing system based on real-time feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102351303A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214069A (en) * | 2013-04-25 | 2013-07-24 | 佛山市绿建环保科技有限公司 | Control system for automatic chemical dosing in flocculation process |
| CN104181835A (en) * | 2013-05-28 | 2014-12-03 | 浙江理工大学 | Chlorinator opening automatic control method based on analog quantity feedback |
| CN107162160A (en) * | 2017-07-21 | 2017-09-15 | 苏州长鸿机械设备有限公司 | A kind of countryside sewage treatment equipment |
| CN107285439A (en) * | 2017-08-02 | 2017-10-24 | 金剑环保有限公司 | Full-automatic tap water chlorine supplementing station |
| CN109336243A (en) * | 2018-10-24 | 2019-02-15 | 西安建筑科技大学 | Method and system for compound ring controlling chlorination of secondary water supply |
| CN111812286A (en) * | 2020-06-11 | 2020-10-23 | 中州水务控股有限公司 | Automatic monitoring of residual chlorine in urban and rural water supply integrated pipe network and automatic optimization of chemical dosing system |
| CN112230600A (en) * | 2020-11-20 | 2021-01-15 | 浙江大学 | A kind of remote control system of secondary chlorination equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
| CN201914961U (en) * | 2010-12-27 | 2011-08-03 | 天津创业环保集团股份有限公司 | On-demand chlorine adding control system |
| CN202246215U (en) * | 2011-10-13 | 2012-05-30 | 浙江大学 | Secondary chlorination system based on real-time feedback |
-
2011
- 2011-10-13 CN CN2011103088237A patent/CN102351303A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495125U (en) * | 2009-07-31 | 2010-06-02 | 深圳市水务(集团)有限公司 | System for performing on-line monitoring on residual chlorine in fluid |
| CN201914961U (en) * | 2010-12-27 | 2011-08-03 | 天津创业环保集团股份有限公司 | On-demand chlorine adding control system |
| CN202246215U (en) * | 2011-10-13 | 2012-05-30 | 浙江大学 | Secondary chlorination system based on real-time feedback |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214069A (en) * | 2013-04-25 | 2013-07-24 | 佛山市绿建环保科技有限公司 | Control system for automatic chemical dosing in flocculation process |
| CN104181835A (en) * | 2013-05-28 | 2014-12-03 | 浙江理工大学 | Chlorinator opening automatic control method based on analog quantity feedback |
| CN107162160A (en) * | 2017-07-21 | 2017-09-15 | 苏州长鸿机械设备有限公司 | A kind of countryside sewage treatment equipment |
| CN107285439A (en) * | 2017-08-02 | 2017-10-24 | 金剑环保有限公司 | Full-automatic tap water chlorine supplementing station |
| CN109336243A (en) * | 2018-10-24 | 2019-02-15 | 西安建筑科技大学 | Method and system for compound ring controlling chlorination of secondary water supply |
| CN111812286A (en) * | 2020-06-11 | 2020-10-23 | 中州水务控股有限公司 | Automatic monitoring of residual chlorine in urban and rural water supply integrated pipe network and automatic optimization of chemical dosing system |
| CN112230600A (en) * | 2020-11-20 | 2021-01-15 | 浙江大学 | A kind of remote control system of secondary chlorination equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102351303A (en) | Secondary chlorine dosing system based on real-time feedback | |
| US7402252B2 (en) | Automated electrolyte addition for salt water pools, spas, and water features | |
| US20210331954A1 (en) | Monochloramine water disinfection system and method | |
| AU736758B2 (en) | Method and apparatus for automatic adjustment of halogen production in a water treatment system | |
| EP0832850B1 (en) | Apparatus for producing a sterilising solution | |
| CN117441740A (en) | Weak acid disinfection solution, preparation method thereof and hypochlorous acid-based weak acid disinfection solution preparation device | |
| JP5237913B2 (en) | Preparation method of molecular hypochlorous acid solution by ion exchange and molecular hypochlorous acid solution | |
| US9656891B2 (en) | Chlorine dioxide generator for the efficient generation of chlorine dioxide in dilute solutions | |
| CN105373092B (en) | A kind of water factory's special intelligent networked control systems and its control method | |
| CN202246215U (en) | Secondary chlorination system based on real-time feedback | |
| KR102032441B1 (en) | Hybrid generation apparatus for sodium hypochlorite, and system thereof | |
| US7736522B2 (en) | Dual generator single power source for tandem pool and spa | |
| EP2361227B1 (en) | Disinfection system | |
| KR101556371B1 (en) | Apparatus for producing sodium hypochlorite solution | |
| CN214400748U (en) | A large-traffic electrolysis water equipment for beasts and birds plant | |
| KR101510455B1 (en) | System For Generating On-Site Un-Divided Type High-Efficiency Sodium Hypochlorite | |
| US20130126403A1 (en) | Automated santization and disinfection of recreational and commercial bodies of water | |
| KR101446571B1 (en) | Apparatus for simultaneous producing High concentrations of aqueous solution of sodium hypochlorite and low concentrations of aqueous solution of sodium hypochlorite | |
| JP2016182589A (en) | Hypochlorous acid sterilizing water generator | |
| CN210237309U (en) | Water quality adjusting system for system water behind supercritical reaction device | |
| US20060283789A1 (en) | Pool and spa dual body sanitization system | |
| CN112642777B (en) | Central Health System | |
| CN104628203A (en) | Conditioning device for low-temperature multi-effect distillation seawater desalination system and conditioning method thereof | |
| CN114588843A (en) | Chlorine dioxide preparation device for drinking water disinfection | |
| CN102603034A (en) | Method and device for regulating quality of desalinated sea water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |