CN102087240A - On-line residual chlorine monitoring self-calibration algorithm - Google Patents
On-line residual chlorine monitoring self-calibration algorithm Download PDFInfo
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- CN102087240A CN102087240A CN2009102504007A CN200910250400A CN102087240A CN 102087240 A CN102087240 A CN 102087240A CN 2009102504007 A CN2009102504007 A CN 2009102504007A CN 200910250400 A CN200910250400 A CN 200910250400A CN 102087240 A CN102087240 A CN 102087240A
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- residual chlorine
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Abstract
The invention relates to an on-line residual chlorine monitoring self-calibration algorithm, which comprises the following steps: 1. performing the residual chlorine testing to a solution containing a standard concentration of chloride ions at a temperature between 17 and 30 degree centigrade once every 0.5 degree centigrade and recording the testing results; then testing at a pH value between 6.5-8.5 with a certain interval and recording the results. 2. performing curve fitting twice to the above basic data, simulating the relation curves among the residual chlorine at current environment, the temperature and the pH values, collecting and storing the basic data into the EEPROM of the system, testing the residual chlorine by the MCU of the system and simultaneously testing current temperature and pH value of the water, calculating a fitting curve by the MCU so as to realize an accurate calibration of the residual chlorine. The invention calibrates the tested great error of the residual chlorine value, and guarantees the reliability and the stability of the measured value.
Description
Technical field
The present invention relates to a kind of assay method, relate in particular to a kind of online chlorine residue monitoring self calibration algorithm swimming pool, bathing pool and other aquatics programme chlorine residue.
Background technology
The purification of water resource and recycling be a measure of benefiting the nation and the people.This project is considered from saving limited energy and environment protection aspect, by to occasions such as swimming pool, bathing pools, the water quality of water resource is monitored in real time and is handled in real time, reaches the purpose of water resource recycling, thereby saves a large amount of precious water resource; Simultaneously, consider that from the science health perspectives people also press for a healthy and safe swimming, bathing place, rationally monitor water quality and water quality is handled in real time, thereby the water quality that reaches swimming pool, bathing pool is healthy and safe, allows people obtain a good environment.The ultimate principle that water quality is handled is the virus killing sterilizing function of utilization sodium hypochlorite.Sodium hypochlorite is a kind of strong oxidizer, and the sterilization ability is 2.5 times of chlorine, and a large amount of algae and organic acid in the oxidable water, and can not produce objectionable impurities such as methenyl choloride are applicable to the former water that pollution is more serious, but and removing of iron and manganese, removes look.Its Disinfection Effect is not influenced by the pH value, the qualification rate of increasing water quality and safety and environmental protection.
The effect of chlorine residue is to guarantee to continue sterilization, can prevent that also sealing is subjected to polluting again.If but residual chlorine amount exceeds standard, may add phenol and other organism produce in the heavy water flavor and smelly, also might generate chloroform etc. has the organochlorine of " three cause " effect for thing.Measure contents of residual chlorine and existence in the water, to carrying out water sterilization work and guaranteeing that water hygiene safety is very important.In the practical application, the mensuration of chlorine residue has methods such as reagent, test paper, electrochemical analysis.Traditional electrochemical methods generally adopts the temperature variation of thermistor compensation water sample and doses the pH damping fluid and adjust the pH value to overcome the influence of these two kinds of factors, owing to influenced by temperature and pH value, has caused bigger measuring error.
Summary of the invention
The purpose of this invention is to provide a kind of online chlorine residue monitoring self calibration algorithm, adopt the temperature variation of thermistor compensation water sample and dose the pH damping fluid and adjust the pH value to overcome traditional electrochemical methods to overcome the influence of these two kinds of factors, owing to influenced by temperature and pH value, caused the deficiency of bigger measuring error.
The technical scheme of online chlorine residue monitoring self calibration algorithm of the present invention is:
A kind of online chlorine residue monitoring self calibration algorithm may further comprise the steps:
The solution that 1, will contain the normal concentration chlorion between 17-30 degree centigrade, is once tested every 0.5 degree centigrade, and with the test result record; Between pH value 6.5-8.5 (country is defined as 7.0-7.8 to swimming-pool water PH), test then by certain interval, and with outcome record.
2, by above-mentioned basic data is carried out curve fitting twice, simulate the relation curve of chlorine residue to temperature and pH value, and with basic data acquisition and store in the EEPROM of system, the MCU of system is when testing chlorine residue, test the current water temperature and the pH value of water simultaneously, by the matched curve that MCU calculates, just can accurately calibrate chlorine residue.
Advantage of the present invention is: patent of the present invention has adopted unique software calibration algorithm, by a large amount of crucial measured datas as the calibration foundation, can be according to the test data of temperature sensor and pH value sensor, the chlorine content than mistake that records is calibrated, thereby guaranteed the reliable, stable of measured value.
Embodiment
The online chlorine residue monitoring of embodiment of the invention self calibration algorithm may further comprise the steps:
The solution that 1, will contain the normal concentration chlorion between 17-30 degree centigrade, is once tested every 0.5 degree centigrade, and with the test result record; Between pH value 6.5-8.5 (country is defined as 7.0-7.8 to swimming-pool water PH), test then by certain interval, and with outcome record.
2, by above-mentioned basic data is carried out curve fitting twice, simulate the relation curve of chlorine residue to temperature and pH value, and with basic data acquisition and store in the EEPROM of system, the MCU of system is when testing chlorine residue, test the current water temperature and the pH value of water simultaneously, by the matched curve that MCU calculates, just can accurately calibrate chlorine residue.
The principle of this algorithm is the proportional relation of concentration of example in the conductive capability of water and the water, therefore, can record the concentration of chlorine residue in the water by the intensity of measuring current.But,, must manage to eliminate this influence because the conductive capability of water also is subjected to pH value and Temperature Influence.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (1)
1. an online chlorine residue monitoring self calibration algorithm is characterized in that, may further comprise the steps:
1), will contain the solution of normal concentration chlorion, between 17-30 degree centigrade, carry out chlorine residue test every 0.5 degree centigrade, and with the test result record; Between pH value 6.5-8.5, test then by certain interval, and with outcome record.
2), by above-mentioned basic data is carried out curve fitting twice, simulate the relation curve of chlorine residue to temperature and pH value, and with basic data acquisition and store in the EEPROM of system, the MCU of system is when testing chlorine residue, test the current water temperature and the pH value of water simultaneously, by the matched curve that calculates, just can accurately calibrate chlorine residue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102504007A CN102087240A (en) | 2009-12-08 | 2009-12-08 | On-line residual chlorine monitoring self-calibration algorithm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102504007A CN102087240A (en) | 2009-12-08 | 2009-12-08 | On-line residual chlorine monitoring self-calibration algorithm |
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| CN102087240A true CN102087240A (en) | 2011-06-08 |
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| CN2009102504007A Pending CN102087240A (en) | 2009-12-08 | 2009-12-08 | On-line residual chlorine monitoring self-calibration algorithm |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477811A (en) * | 2016-06-16 | 2019-03-15 | 哈希公司 | Chlorine, oxidation-reduction potential (ORP) and PH measure probe |
| CN110146553A (en) * | 2019-06-05 | 2019-08-20 | 东莞市盛山电子科技有限公司 | Electronic digital display chlorine tester detection calibration method and its tester |
| CN110702735A (en) * | 2019-10-18 | 2020-01-17 | 重庆远通电子技术开发有限公司 | Residual chlorine electrode calibration method and water quality detection instrument |
| CN112946024A (en) * | 2021-01-27 | 2021-06-11 | 宁波水表(集团)股份有限公司 | Method for testing measurement characteristics of residual chlorine sensor |
| CN117405848A (en) * | 2023-12-14 | 2024-01-16 | 杭州泽天春来科技股份有限公司 | Residual chlorine on-line analysis system, method and computer readable storage medium |
-
2009
- 2009-12-08 CN CN2009102504007A patent/CN102087240A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477811A (en) * | 2016-06-16 | 2019-03-15 | 哈希公司 | Chlorine, oxidation-reduction potential (ORP) and PH measure probe |
| CN110146553A (en) * | 2019-06-05 | 2019-08-20 | 东莞市盛山电子科技有限公司 | Electronic digital display chlorine tester detection calibration method and its tester |
| CN110146553B (en) * | 2019-06-05 | 2022-02-08 | 东莞市盛山电子科技有限公司 | Electronic digital display chlorine tester test calibration method and tester thereof |
| CN110702735A (en) * | 2019-10-18 | 2020-01-17 | 重庆远通电子技术开发有限公司 | Residual chlorine electrode calibration method and water quality detection instrument |
| CN112946024A (en) * | 2021-01-27 | 2021-06-11 | 宁波水表(集团)股份有限公司 | Method for testing measurement characteristics of residual chlorine sensor |
| CN112946024B (en) * | 2021-01-27 | 2023-09-15 | 宁波水表(集团)股份有限公司 | Method for checking measurement characteristics of residual chlorine sensor |
| CN117405848A (en) * | 2023-12-14 | 2024-01-16 | 杭州泽天春来科技股份有限公司 | Residual chlorine on-line analysis system, method and computer readable storage medium |
| CN117405848B (en) * | 2023-12-14 | 2024-04-12 | 杭州泽天春来科技股份有限公司 | Residual chlorine on-line analysis system, method and computer readable storage medium |
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Application publication date: 20110608 |