CN112946027A - pH on-line detection method for super-alkaline electrolyzed water - Google Patents
pH on-line detection method for super-alkaline electrolyzed water Download PDFInfo
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- CN112946027A CN112946027A CN202110267269.6A CN202110267269A CN112946027A CN 112946027 A CN112946027 A CN 112946027A CN 202110267269 A CN202110267269 A CN 202110267269A CN 112946027 A CN112946027 A CN 112946027A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 239000004032 superbase Substances 0.000 claims description 7
- 150000007525 superbases Chemical class 0.000 claims description 7
- 239000000523 sample Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
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Abstract
The application discloses an on-line pH detection method for super-alkaline electrolyzed water, and relates to the field of electrolyzed water. Acquiring laboratory temperature data, laboratory pH data and laboratory conductivity data of the obtained super-alkaline electrolyzed water through a laboratory; deducing a functional relation between the pH data and the conductivity data under a certain temperature condition, and realizing online detection of the pH of the ultra-alkaline electrolyzed water by acquiring online conductivity data in real time.
Description
Technical Field
The invention relates to the field of electrolyzed water, in particular to an on-line pH detection method for super-alkaline electrolyzed water.
Background
The pH value of the super-alkaline electrolyzed water prepared by the super-alkaline electrolyzed water generator exceeds 12, and the pH value of the super-alkaline electrolyzed water needs to be detected by a professional pH instrument in a laboratory. Meanwhile, the user needs the equipment to automatically produce water according to the selected pH value, and when the pH value of the alkaline water does not accord with the selected value, the equipment can automatically adjust the electrolysis power or alarm to stop the machine, so that the accuracy of the pH value of the alkaline water is ensured. Therefore, a professional pH on-line instrument is required to be arranged on the ultra-alkaline water equipment, the pH of the alkaline water is detected in real time, and the pH is fed back to a control system of the equipment.
In practice, the accurate measurement range of the existing pH meter is found to be 2-12, and when the pH value exceeds 12, pH meters of different brands at home and abroad detect the same water sample, and the detection values of the pH meters are greatly different. When the same instrument is used for detecting a water sample, large deviation can also occur in different time, environments and the like, and after the water sample with the pH value exceeding 12 is detected, the sensor is slow to recover, and the deviation is large. Meanwhile, the service life of the pH sensor is also shortened. For an on-line pH meter, the influence of various factors such as water temperature is larger, the measurement accuracy and consistency are poorer, and the service life is shorter. The measured value of the water quality control device is used as a feedback value, and the operation of the device and the water quality can be seriously influenced.
Disclosure of Invention
The invention aims to provide an on-line detection method for pH of super-alkaline electrolyzed water, which solves the problems of poor accuracy and consistency and the like in the on-line detection of a water sample with pH exceeding 12 by a traditional pH meter, realizes the accurate and rapid measurement of the pH of the super-alkaline electrolyzed water, and has the advantages of long service life and small influence of external environment.
In order to realize the effect, the invention discloses an on-line detection method for pH of super-alkaline electrolyzed water,
acquiring laboratory temperature data, laboratory pH data and laboratory conductivity data of the super-alkaline electrolyzed water;
generating a matching formula of the laboratory pH data and the laboratory conductivity data of the superbase electrolyzed water under the current laboratory temperature data based on the laboratory temperature data, the laboratory pH data and the laboratory conductivity data of the superbase electrolyzed water, wherein the matching formula is used for expressing the change relation of the online pH data with the online conductivity data at the temperature;
and acquiring online conductivity data and online temperature data, selecting a corresponding temperature matching formula according to the online temperature data, and deducing online pH data in real time through the matching formula to realize real-time online detection of the pH of the super-alkaline electrolyzed water prepared by the electrolyzed water generator.
Further, when laboratory temperature data, laboratory pH data and laboratory conductivity data of the superbase electrolyzed water are obtained, a plurality of adjacent laboratory pH data under any one laboratory temperature data and laboratory conductivity data corresponding to the laboratory pH data are obtained.
Preferably, the difference between the maximum laboratory pH data and the minimum laboratory pH data of the several adjacent laboratory pH data does not exceed 3.
Preferably, the difference between any two adjacent laboratory pH data does not exceed 0.3.
Further, the matching formula is represented by a logarithmic function as shown in the following formula (i):
formula (I)
Wherein y represents pH data of the super-alkaline electrolyzed water;
x represents conductivity data of the super-alkaline electrolyzed water in units of mus/cm;
ln (x) denotes the natural logarithm of x, in which the constant term e = 2.7182818;
a. b is a coefficient.
Further, the pH of the super alkaline water is alkaline water with the pH value not lower than 12.
The invention has the beneficial effects that:
obtaining laboratory temperature data, laboratory pH data and laboratory conductivity data of the superbase electrolyzed water through a laboratory; deducing a functional relation between the pH data and the conductivity data under a certain temperature condition, and realizing online detection of the pH of the ultra-alkaline electrolyzed water by acquiring online conductivity data in real time.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to obtain laboratory temperature data, laboratory pH data and laboratory conductivity data of the super-alkaline electrolyzed water;
experimental instrumentation used:
the laboratory temperature data obtained was 25 ℃. The laboratory pH data and laboratory conductivity data obtained were as follows:
a =0.4352, b =8.7741 at pH range 12-14 obtained by logarithmic curve regression calculation.
y=0.4352*ln（x）+8.7741。
In order to obtain the on-line conductivity data of the super-alkaline electrolyzed water, a conductivity probe is installed at a node to be detected. And obtaining online pH data through online conductivity data and a corresponding matching formula.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the scope of the invention.
Claims (6)
1. An on-line pH detection method for super-alkaline electrolyzed water is characterized in that:
acquiring laboratory temperature data, laboratory pH data and laboratory conductivity data of the super-alkaline electrolyzed water;
generating a matching formula of the laboratory pH data and the laboratory conductivity data of the superbase electrolyzed water under the current laboratory temperature data based on the laboratory temperature data, the laboratory pH data and the laboratory conductivity data of the superbase electrolyzed water, wherein the matching formula is used for expressing the change relation of the online pH data with the online conductivity data at the temperature;
acquiring online conductivity data and online temperature data, selecting a corresponding temperature matching formula according to the online temperature data, and deducing online pH data in real time through the matching formula.
2. The on-line detection method for pH of the super-alkaline electrolyzed water as claimed in claim 1, characterized in that: when laboratory temperature data, laboratory pH data and laboratory conductivity data of the superbase electrolyzed water are obtained, a plurality of adjacent laboratory pH data under any one laboratory temperature data and laboratory conductivity data corresponding to the laboratory pH data are obtained.
3. The on-line detection method for pH of the super-alkaline electrolyzed water as claimed in claim 2, characterized in that: the difference between the maximum laboratory pH data and the minimum laboratory pH data of the plurality of adjacent laboratory pH data is no more than 3.
4. The on-line detection method for pH of the super-alkaline electrolyzed water as claimed in claim 2, characterized in that: the difference between any two adjacent laboratory pH data did not exceed 0.3.
5. The on-line detection method for pH of the super-alkaline electrolyzed water as claimed in claim 1, characterized in that: the matching formula is represented by a logarithmic function as shown in the following formula (i):
formula (I)
Wherein y represents pH data of the super-alkaline electrolyzed water;
x represents conductivity data of the super-alkaline electrolyzed water in units of mus/cm;
ln (x) denotes the natural logarithm of x, in which the constant term e = 2.7182818;
a. b is a coefficient.
6. The on-line detection method for pH of the super-alkaline electrolyzed water as claimed in claim 1, characterized in that: the pH of the super alkaline water is alkaline water with the pH value not lower than 12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110267269.6A CN112946027A (en) | 2021-03-11 | 2021-03-11 | pH on-line detection method for super-alkaline electrolyzed water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267269.6A CN112946027A (en) | 2021-03-11 | 2021-03-11 | pH on-line detection method for super-alkaline electrolyzed water |
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| CN112946027A true CN112946027A (en) | 2021-06-11 |
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| CN202110267269.6A Pending CN112946027A (en) | 2021-03-11 | 2021-03-11 | pH on-line detection method for super-alkaline electrolyzed water |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4787990A (en) * | 1984-11-23 | 1990-05-10 | Massachusetts Institute Of Technology | Molecule-based microelectronic devices |
| CN1444729A (en) * | 2000-08-11 | 2003-09-24 | 艾尼克斯公司 | Process and device for continuous ionic monitoring of aqueous solutions |
| CN101058465A (en) * | 2007-05-22 | 2007-10-24 | 上海轻工业研究所有限公司 | Automatic control system for treating cooling circulation water system by ozone |
| CN110161199A (en) * | 2018-01-11 | 2019-08-23 | 盐城工业职业技术学院 | A kind of Multifunctional water quality detection equipment |
| CN110998307A (en) * | 2017-09-07 | 2020-04-10 | 栗田工业株式会社 | Management system of water treatment equipment |
| CN210894193U (en) * | 2019-06-10 | 2020-06-30 | 西安热工研究院有限公司 | Accuracy inspection system of online pH table of power plant steam system |
| CN112010405A (en) * | 2020-08-28 | 2020-12-01 | 河南省科学院能源研究所有限公司 | Water treatment comprehensive control treatment method for cooling circulating water of central air conditioner |
-
2021
- 2021-03-11 CN CN202110267269.6A patent/CN112946027A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4787990A (en) * | 1984-11-23 | 1990-05-10 | Massachusetts Institute Of Technology | Molecule-based microelectronic devices |
| CN1444729A (en) * | 2000-08-11 | 2003-09-24 | 艾尼克斯公司 | Process and device for continuous ionic monitoring of aqueous solutions |
| CN101058465A (en) * | 2007-05-22 | 2007-10-24 | 上海轻工业研究所有限公司 | Automatic control system for treating cooling circulation water system by ozone |
| CN110998307A (en) * | 2017-09-07 | 2020-04-10 | 栗田工业株式会社 | Management system of water treatment equipment |
| CN110161199A (en) * | 2018-01-11 | 2019-08-23 | 盐城工业职业技术学院 | A kind of Multifunctional water quality detection equipment |
| CN210894193U (en) * | 2019-06-10 | 2020-06-30 | 西安热工研究院有限公司 | Accuracy inspection system of online pH table of power plant steam system |
| CN112010405A (en) * | 2020-08-28 | 2020-12-01 | 河南省科学院能源研究所有限公司 | Water treatment comprehensive control treatment method for cooling circulating water of central air conditioner |
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Application publication date: 20210611 |