CN100510728C - Meter for on-line detecting water solution ozone density and the detection method - Google Patents
Meter for on-line detecting water solution ozone density and the detection method Download PDFInfo
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- CN100510728C CN100510728C CNB2007100229896A CN200710022989A CN100510728C CN 100510728 C CN100510728 C CN 100510728C CN B2007100229896 A CNB2007100229896 A CN B2007100229896A CN 200710022989 A CN200710022989 A CN 200710022989A CN 100510728 C CN100510728 C CN 100510728C
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Abstract
The invention provides an online water solution ozone check concentration meter, wherein the output of an oxidization reduction potential electrode detector is connected with the input of a potentiometer, the potentiometer (104) and the oxidization reduction potential electrode detector are serially connected with a temperature compensator between, the output of the potentiometer is connected with the input of a multifunctional digit operation processor, the potentiometer and the multifunctional digit operation processor are serially connected with a water quality recognizer between, the output of the multifunctional digit converter is connected with the input of a digit display device. The invention can measure ozone densities of different water solutions.
Description
Technical field
The present invention relates to the surveying instrument and the detection method that is used for this instrument of material concentration in a kind of online detection aqueous solution, relate in particular to the instrument and the method that is used for this instrument of online detection water solution ozone density.
Background technology
At present, ozone in water residual concentration measuring principle mainly contains ultraviolet absorption method and galvanochemistry (membrane electrode) method.Using ultraviolet absorption method mainly is to utilize ozone that wavelength X=254nim ultraviolet light is had the absorption maximum coefficient, and ultraviolet light can produce decay by ozonosphere under this wavelength, meets blue baud Beer law.But use the but demonstration difference photometer of ultraviolet absorption method to be subject to disturb for the ozone in water concentration determination, measuring accuracy and sensitivity are poor; Simultaneously because the organism in the water is all the same with ozone with inorganics, absorb the ultraviolet light of same or close-spaced wavelength, the result who make to use this method measure directly is affected, and measuring accuracy is poor, when using this method in the water suspended state particle also influence measuring accuracy.The membrane electrode method mainly is to adopt a kind of ventilated membrane that optionally is fit to ozone molecule that has, ozone in water diffuses into probe inside and resolves into oxygen by diaphragm in measuring process, reaction makes the membrane electrode probe produce electric current, and this current value becomes certain ratio row relation with ozone in water concentration.Utilize isolated plant to carry out directly showing after the internal analysis calculation process.So, though use membrane electrode method measuring accuracy height, be subjected to disturbing factor few, because the equipment price costliness of using this method to make, domestic can't the manufacturing need be from foreign import, so be difficult to promote the use of in China's light water treatment industry.And in the existing densimeter, also there is not a kind of instrument can measure ozone concentration in the aqueous solution of different quality.
Summary of the invention
Technical matters:
The technical problem to be solved in the present invention provides a kind of online detection water solution ozone density meter and is used for the detection method of this densimeter, can measure the ozone concentration of different aqueous solution.
Technical scheme:
For solving the problems of the technologies described above, the technical solution used in the present invention is: the output terminal of oxidation-reduction potential electrode probe is connected with potentiometric input end, the temperature compensation means of connecting between pot and the oxidation-reduction potential electrode probe, potentiometric output terminal connects the input end of multifunctional digital arithmetic processing apparatus, the water quality characteristic recognition device of connecting between pot and multifunctional digital arithmetic processing apparatus, the output terminal of multifunctional digital conversion equipment connects the input end of numeric display unit.
Preferably, oxidation-reduction potential electrode probe voltage signal output end is connected with potentiometric signal input part, the temperature compensation means of connecting between the temperature inductor of pot temperature signal input end and oxidation-reduction potential electrode probe, the pot voltage signal output end connects the voltage signal input end of multifunctional digital arithmetic processing apparatus, the water quality characteristic recognition device of connecting between the reference signal input end of potentiometric indicator electrode electrical signal and multifunctional digital arithmetic processing apparatus, the electrical signal of multifunctional digital arithmetic processing apparatus connects the electric signal input end of numeric display unit.
Preferably, detect the multifunctional digital arithmetic processing apparatus of water solution ozone density and carry out following steps: gather the water quality characteristic signal that the water quality characteristic recognition device provides, gather the electric signal that pot provides; Calculate ozone concentration according to above-mentioned water quality characteristic signal and the electric signal that obtains, formula is y=k1*k2* (a*x+b)+C; The ozone concentration that output obtains.
Preferably, the current signal output end of multifunctional digital arithmetic processing apparatus connects comparison amplifier.
Beneficial effect:
Owing to the present invention includes the oxidation-reduction potential electrode probe, the pot that is connected with the oxidation-reduction potential electrode probe, the temperature compensation means of connecting between pot and the oxidation-reduction potential electrode probe, the multifunctional digital arithmetic processing apparatus that is connected with pot, the numeric display unit that is connected with the multifunctional digital arithmetic processing apparatus with take into account the water quality characteristic recognition device that the multifunctional digital arithmetic processing apparatus is connected with current potential respectively.So the present invention can reach the effect of measuring ozone concentration in the different aqueous solution under the effect of water quality characteristic recognition device and multifunctional digital arithmetic processing apparatus.
In a preferred embodiment of the invention, oxidation-reduction potential electrode probe voltage signal output end is connected with potentiometric signal input part, the temperature compensation means of connecting between pot temperature signal input end and the oxidation-reduction potential electrode probe temperature inductor, the pot voltage signal output end connects the voltage signal input end of multifunctional digital arithmetic processing apparatus, the water quality characteristic recognition device of connecting between the reference signal input end of potentiometric indicator electrode electrical signal and multifunctional digital arithmetic processing apparatus, the electrical signal of multifunctional digital arithmetic processing apparatus connects the electric signal input end of numeric display unit.So the present invention can obtain the oxidation-reduction potential of aqueous solution by pot, utilize the relation of ozone concentration in the oxidation-reduction potential of aqueous solution and the aqueous solution, obtain ozone concentration in the aqueous solution by the multifunctional digital conversion equipment; Because the water quality characteristic recognition device that pot indicator electrode electrical signal of the present invention and multifunctional digital arithmetic processing apparatus reference signal input end connect, because the oxidation-reduction potential value of different quality is different, so can obtain the quality of aqueous solution according to the oxidation-reduction potential value that records, and then obtain ozone concentration in the different quality by the multifunctional digital reforming unit.
In a preferred embodiment of the invention, the electric signal that the multifunctional digital arithmetic processing apparatus that realize to detect water solution ozone density provides by the water quality characteristic signal gathering the water quality characteristic recognition device and provide and pot, so, the relation between water solution ozone density and the oxidation-reduction potential be can utilize, ozone concentration and output calculated according to above-mentioned water quality characteristic signal that obtains and electric signal.
In a preferred embodiment of the invention, comprise comparison amplifier, thus can be with the ozone concentration signal that measures through after relatively amplifying, the control external device.
Therefore the present invention can reach the ozone concentration of measuring different aqueous solution, and can be according to the effect of the ozone concentration signal controlling external device that measures.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a circuit diagram of the present invention;
Fig. 2 is a circuit block diagram of the present invention;
Fig. 3 is the method step process flow diagram that multifunctional digital arithmetic processing apparatus of the present invention realizes detecting water solution ozone density.
Fig. 4 is when aqueous solution is the dechlorination tap water, the graph of relation of ozone concentration and oxidation-reduction potential value;
Fig. 5 is when aqueous solution is underground water, the graph of relation of ozone concentration and oxidation-reduction potential value;
Fig. 6 is when aqueous solution is purified water, the graph of relation of ozone concentration and oxidation-reduction potential value.
Embodiment
As shown in Figure 1, the output terminal of oxidation-reduction potential electrode probe 101 of the present invention is connected with the input end of pot 104, the temperature compensation means 102 of connecting between pot 104 and the oxidation-reduction potential electrode probe 101, the output terminal of pot 104 connects the input end of multifunctional digital arithmetic processing apparatus 105, the water quality characteristic recognition device 103 of connecting between pot 104 and multifunctional digital arithmetic processing apparatus 105, the output terminal of multifunctional digital conversion equipment 105 connects the input end of numeric display unit 106.
As shown in Figure 2, first voltage signal output end 11 of oxidation-reduction potential electrode probe 101 of the present invention and the contrast electrode input end 41 of pot 104 link to each other, and second voltage signal output end 13 of oxidation-reduction potential electrode probe 101 is connected with the measuring-signal input end 42 of pot 104; The temperature compensation means 102 of connecting between the temperature signal input end 45 of pot 104 and the temperature inductor 12 of oxidation-reduction potential electrode probe 101, pot 104 voltage signal output ends 43 connect the voltage signal input end 51 of multifunctional digital arithmetic processing apparatus 105, the water quality characteristic recognition device 103 of connecting between the reference signal input end 53 of the indicator electrode electrical signal 44 of pot 104 and multifunctional digital arithmetic processing apparatus 105, the electrical signal 52 of multifunctional digital arithmetic processing apparatus 105 connects the electric signal input end 61 of numeric display units 106.
As shown in Figure 3, be the method step process flow diagram that the multifunctional digital arithmetic processing apparatus realize to detect water solution ozone density, promptly gather the electric signal that water quality characteristic signal that water quality characteristic recognition device 103 provides and pot 104 provide; Calculate ozone concentration according to above-mentioned water quality characteristic signal and the electric signal that obtains, computing formula is: y=k1*k2* (a*x+b)+C, wherein, X represents ozone concentration, its scope is 0.01-1.20mg/L, and a is an equation coefficient, and its scope is 40-60, b is an equation coefficient, its scope is 60-300, and c is an aqueous solution initial oxidation reduction potential value to be measured, and its scope is 650-900mV, Y is the oxidation-reduction potential value, and its scope is 650-1000mV; The ozone concentration that output obtains.
Oxidation-reduction potential electrode probe 101 is put into aqueous solution, can measure the oxidation-reduction potential of aqueous solution by pot 104, owing to the increase of oxidation-reduction potential along with ozone concentration in the aqueous solution improves, so multifunctional digital conversion equipment 105 utilizes this principle can calculate ozone concentration in the aqueous solution.The utility model is provided with water quality characteristic recognition device 103 according to the pH value and the relation between the conductivity of different aqueous solution again, thereby reaches the purpose of measuring the ozone concentration in the different aqueous solution, thereby realizes the ozone concentration in the kinetic measurement aqueous solution.
As shown in Figure 4, when aqueous solution is the dechlorination tap water, according to water quality characteristic equation y=k1*k2* (a*x+b)+C, when the concentration interval is 0.75-1.2mg/L, k1*k2=0.95, a=42.1, b=105.26, C=790, the water quality equation of dechlorination tap water are Y=0.95* (42.1*X+105.26)+790.
So, when measuring oxidation-reduction potential value Y=920, ozone concentration value X=0.75.
When measuring oxidation-reduction potential value Y=930, ozone concentration value X=1.0.
When measuring oxidation-reduction potential value Y=938, ozone concentration value X=1.2.
As shown in Figure 5, when aqueous solution is underground water, according to water quality characteristic equation y=k1*k2* (a*x+b)+C, when the concentration interval was 0.65-1.1mg/L, k1*k2 was 0.8 value, a=50, b=245, C=700, phreatic water quality equation are Y=0.8* (50*X+245)+700.
So, when measuring oxidation-reduction potential value Y=922, ozone concentration value X=0.65;
When measuring oxidation-reduction potential value Y=930, ozone concentration value X=0.85;
When measuring oxidation-reduction potential value Y=940, ozone concentration value X=1.1.
As shown in Figure 6, when aqueous solution is purified water, according to water quality characteristic equation y=k1*k2* (a*x+b)+C, when the concentration interval is 0.7-1.15mg/L, k1*k2=1.0, a=40, b=90, C=810, phreatic water quality equation are Y=1.0* (40*X+90)+810.
So, when measuring oxidation-reduction potential value Y=928, ozone concentration value X=0.7;
When measuring oxidation-reduction potential value Y=936, ozone concentration value X=0.9;
When measuring oxidation-reduction potential value Y=944, ozone concentration value X=1.1.
And for example illustrated in figures 1 and 2, the current signal output end of multifunctional digital arithmetic processing apparatus 105 has connected comparison amplifier 200, so can be according to the ozone concentration control external device that obtains.
What aforesaid oxidation-reduction potential electrode adopted is the compound ORP gold electrode of ASRS2601; The chip that pot 104 adopts is CA3140E/P427CP3; The chip that the multifunctional digital conversion equipment adopts is W78E581B-40/523GE2507678A-142RA.
Claims (4)
1, a kind of online detection water solution ozone density meter, it is characterized in that, the output terminal of oxidation-reduction potential electrode probe (101) is connected with the input end of pot (104), the temperature compensation means (102) of connecting between pot (104) and the oxidation-reduction potential electrode probe (101), the output terminal of pot (104) connects the input end of multifunctional digital arithmetic processing apparatus (105), the water quality characteristic recognition device (103) of connecting between pot (104) and multifunctional digital arithmetic processing apparatus (105), the output terminal of multifunctional digital conversion equipment (105) connects the input end of numeric display unit (106).
2, online detection water solution ozone density meter as claimed in claim 1, it is characterized in that, first voltage signal output end (11) of oxidation-reduction potential electrode probe (101) links to each other with the contrast electrode input end (41) of pot (104), and second voltage signal output end (13) of oxidation-reduction potential electrode probe (101) is connected with the measuring-signal input end (42) of pot (104); The temperature compensation means (102) of connecting between the temperature signal input end (45) of pot (104) and the temperature inductor (12) of oxidation-reduction potential electrode probe (101), pot (104) voltage signal output end (43) connects the voltage signal input end (51) of multifunctional digital arithmetic processing apparatus (105), the water quality characteristic recognition device (103) of connecting between the reference signal input end (53) of the indicator electrode electrical signal (44) of pot (104) and multifunctional digital arithmetic processing apparatus (105), the electrical signal (52) of multifunctional digital arithmetic processing apparatus (105) connects the electric signal input end (61) of numeric display unit (106).
3, online detection water solution ozone density meter as claimed in claim 2 is characterized in that, the current signal output end (54) of multifunctional digital arithmetic processing apparatus (105) connects comparison amplifier (200).
4, a kind of method that is used for the online detection water solution ozone density of online detection water solution ozone density meter as claimed in claim 1 or 2 is characterized in that this method may further comprise the steps:
1), gathers the water quality characteristic signal that water quality characteristic recognition device (103) provides, the electric signal that collection pot (104) provides;
2), calculate ozone concentration according to above-mentioned water quality characteristic signal and the electric signal that collects, y=k1*k2* (a*x+b)+C, wherein, X represents ozone concentration, its scope is 0.01-1.20mg/L, and a is an equation coefficient, and its scope is 40-60, b is an equation coefficient, its scope is 60-300, and c is an aqueous solution initial oxidation reduction potential value to be measured, and its scope is 650-900mV, Y is the oxidation-reduction potential value, and its scope is 650-1000mV; K1 and k2 are the equation correction factors;
3), export the ozone concentration that obtains.
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| CNB2007100229896A CN100510728C (en) | 2007-05-29 | 2007-05-29 | Meter for on-line detecting water solution ozone density and the detection method |
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| CN102297882B (en) * | 2011-05-18 | 2013-01-02 | 海南大学 | Temperature compensation circuit for semiconductor ozone sensor and compensation method thereof |
| CN106556622A (en) * | 2015-09-29 | 2017-04-05 | 中国石油化工集团公司 | A kind of self adaptation acid-base solution concentration in-line analyzer |
| CN108375651B (en) * | 2018-02-24 | 2019-10-11 | 恒天摩尔科技(山东)有限公司 | The detection method and detection device of gas reaction concentration |
| CN108919844A (en) * | 2018-05-15 | 2018-11-30 | 电子科技大学 | A kind of real-time solution concentration automatic control system of chemical reaction rate |
| CN110044981A (en) * | 2019-05-28 | 2019-07-23 | 南京奇崛电子科技有限公司 | Intelligent online ORP sensor |
| CN110412233A (en) * | 2019-08-28 | 2019-11-05 | 上海铱钶环保科技有限公司 | Different quality is quantitative determined to the method and apparatus of ozone-depleting |
| CN114019007B (en) * | 2021-11-04 | 2024-01-12 | 中国能源建设集团江苏省电力设计院有限公司 | Organic pollutant concentration measuring system and method |
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