CN110487850A - A kind of degassing conductivity measurement system and method - Google Patents
A kind of degassing conductivity measurement system and method Download PDFInfo
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- CN110487850A CN110487850A CN201910854953.7A CN201910854953A CN110487850A CN 110487850 A CN110487850 A CN 110487850A CN 201910854953 A CN201910854953 A CN 201910854953A CN 110487850 A CN110487850 A CN 110487850A
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- electric
- water
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- degassing
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- 238000007872 degassing Methods 0.000 title claims abstract description 56
- 238000005259 measurement Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 40
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 20
- 239000001569 carbon dioxide Substances 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 238000010612 desalination reaction Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 239000003814 drug Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N27/07—Construction of measuring vessels; Electrodes therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of degassing conductivity measurement system and methods, the top open part of sampling bottle is provided with bottle cap, filter core is had on bottle cap, the outlet of sampling bottle is connected with the entrance of the first electric conductivity detector, the outlet water sample of first electric conductivity detector is divided into two-way, wherein water sample is connected with the outlet of means for feeding acid by the entrance of pipeline and the first paths of Guan Houyu degassing film all the way, and the outlet of the first paths is connected with drainpipe in degassing film；Another way water sample is connected with the water inlet of electric demineralizer, the water outlet of electric demineralizer is connected with the entrance of the second paths of degassing film, the outlet of the second paths of degassing film is connected with the second electric conductivity detector entrance, the outlet of second electric conductivity detector is connected with the electrolysis water feeder connection of electric demineralizer, electric demineralizer electrolysis water passage outlet is connected with drainage pipeline, which more can accurately realize the off-line measurement compared with pure water sample degassing conductivity.
Description
Technical field
The present invention relates to a kind of degassing conductivity measurement system and methods, and in particular to one kind is measured for pure water conductivity
System and method.
Background technique
Conductivity is to characterize the important indicator of power plant water (vapour) purity, but the carbon dioxide in practical applications in air is non-
Often being easily accessible measuring system influences measurement, so being when the conductivity of the pure water used in measurement electric power, electronics and pharmaceuticals industry
The interference of carbon dioxide is avoided to require to carry out on-line measurement to water sample conductivity.
The defect of the prior art: the serious interference of carbon dioxide when measuring pure water conductivity will carry out on-line measurement,
And whether measuring conductivity table accurately then needs the instrument of same higher level that test is compared, and leads to practical present pure water
The measurement of conductivity is not a measurement instrument that can be traced to the source and method.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of degassing conductivity measurement system and
Method, which more can accurately realize the off-line measurement of pure water conductivity, and resistant to carbon dioxide interference performance is strong.
In order to achieve the above objectives, degassing conductivity measurement system of the present invention includes sampling bottle, filter core, the first conductance
Detector, means for feeding acid, degassing film, drainpipe, electric demineralizer, the second electric conductivity detector and drainpipe；
The top open part of sampling bottle is provided with bottle cap, and filter core is had on bottle cap, and the outlet of sampling bottle and the first conductance are examined
The entrance for surveying device is connected, and the water outlet of the first electric conductivity detector is divided into two-way, wherein the outlet of water sample and means for feeding acid is logical all the way
The entrance of first paths of piping and Guan Houyu degassing film is connected, the outlet of the first paths and drainpipe in degassing film
It is connected；Another way water sample is connected with the water inlet of electric demineralizer, second in the water outlet and degassing film of electric demineralizer
The entrance of paths is connected, and the outlet of the second paths of degassing film is connected with the second electric conductivity detector, the second Conductivity detection
Device water outlet is connected to the electrolysis water passage inlet of electric demineralizer, electrolysis water passage outlet and the drainpipe phase of electric demineralizer
Connection.
Degassing conductivity measuring method of the present invention the following steps are included:
Water sample is put into sampling bottle after taking, and air is entered in bottle by filter core, and wherein carbon dioxide is removed, so that taking
The conductivity of water sample is kept constant in measurement process in sample bottle, and the water sample of sampling bottle output is measured by the first electric conductivity detector
It is divided into two-way after conductivity, wherein the acid for adjusting pH value that water sample is exported through means for feeding acid all the way, then passes through the in degassing film
Channel heel row enters in drainpipe all the way, and another way water sample is de- by entering after the zwitterion in electric demineralizer removal water sample
In the second paths in air film, the water outlet of the second paths is after the second electric conductivity detector detects water sample conductivity in degassing film
Enter the electrolysis that electric demineralizer electrolysis water passage carries out water, the H generated by electrolysis water+And OH-Ion pair electricity demineralizer
In resin regenerated in real time, the water sample after electrolysis is discharged into drainpipe.
The conductivity of water sample is detected by the first electric conductivity detector, the second electric conductivity detector measures pure water and passes through after degassing film
Conductivity, by the second electric conductivity detector detect conductivity be compared with pure water conductivity, and combination flow conditions meter
The carbon dioxide content in raw water sample is calculated, the shadow of removing carbon dioxide is removed in the water sample conductivity value of the first electric conductivity detector measurement
It rings, obtains the degassing conductivity value of water sample.
The invention has the following advantages:
A kind of degassing conductivity measurement system of the present invention and method pass through the second Conductivity detection when specific operation
The conductivity of device detection is compared with the conductivity of pure water, and the carbon dioxide for combining flow conditions to calculate in raw water sample contains
Amount goes the influence of removing carbon dioxide in the conductivity value of the first electric conductivity detector measurement, obtains the degassing conductivity value of water sample, with
It realizes the offline accurate measurement compared with pure water sample conductivity, can be used for off-line measurement electric power, electronics and the purer water sample of pharmaceuticals industry
Degassing conductivity, while also providing the measurement instrument and method that one can trace to the source for the measurement of pure water conductivity, energy conservation and environmental protection,
Performance is stablized, easy to operate.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is influence diagram of the pH value to total carbonic acid concentration distribution.
Wherein, 1 be sampling bottle, 2 be filter core, 3 be the first electric conductivity detector, 4 be means for feeding acid, 5 be degassing film, 6 be electricity
Demineralizer, 7 be the second electric conductivity detector, 8 be drainpipe.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, degassing conductivity measurement system of the present invention and method include sampling bottle 1, the 2, first electricity of filter core
Lead detector 3, means for feeding acid 4, degassing film 5, drainpipe 8, electric demineralizer 6, the second electric conductivity detector 7 and drainpipe (8；It takes
The top open part of sample bottle 1 is provided with bottle cap, and filter core 2, outlet and the first electric conductivity detector 3 of sampling bottle 1 are had on bottle cap
Entrance is connected, and the outlet of the first electric conductivity detector 3 is divided into two-way, wherein the outlet of water sample and means for feeding acid 4 passes through pipe all the way
The entrance of first paths of road and Guan Houyu degassing film 5 is connected, the outlet of the first paths and drainpipe 8 in degassing film 5
It is connected, another way water sample is connected with the water inlet of electric demineralizer 6, the in the water outlet and degassing film 5 of electric demineralizer 6
The entrance of two paths is connected, and the outlet of second paths is connected with 7 entrance of the second electric conductivity detector in degassing film 5, the
The water outlet of two electric conductivity detectors 7 is connected with the electrolysis water feeder connection of electric demineralizer 6, the electrolysis water passage of electric demineralizer 6
Outlet is connected with drainpipe 8.
Degassing conductivity measuring method of the present invention the following steps are included:
Water sample is put into sampling bottle 1 after taking, and air is removed by carbon dioxide therein after filter core 2, so that sampling
The conductivity of water sample is kept constant in measurement process in bottle 1, and the water sample that sampling bottle 1 exports is surveyed by the first electric conductivity detector 3
It is divided into two-way after amount conductivity, wherein the acid for adjusting pH value that water sample is exported through means for feeding acid 4 all the way, then by degassing film 5
The first paths heel row enter in drainpipe 8；It is laggard that another way water sample passes through the zwitterion that electric demineralizer 6 removes in water sample
Enter into the second paths in degassing film 5, the water outlet of 5 second paths of degassing film detects water sample through the second electric conductivity detector 7
Electric demineralizer 6 is entered after conductivity is electrolysed the electrolysis that access carries out water, the H generated by electrolysis water+And OH-Ion pair electricity
Resin regenerated in real time in demineralizer 6, electrolysis access water outlet water sample are discharged into drainpipe 8；Degassing film 5 is carbon dioxide removal
Film.
The influence principle of pure water carbon dioxide is deducted in the present invention are as follows: two-way water sample flows counterflow through degassing film with different in flow rate
5, in the process, the pH value of water sample is adjusted to 3 hereinafter, the carbonate of various forms is converted into titanium dioxide in water sample after acid adding
Carbon is entered in another way pure water by degassing film, with reference to Fig. 2, is measured pure water by the second electric conductivity detector 7 and is passed through after degassing film 5
Conductivity, which is compared with the conductivity of pure water, and combine flow conditions, can calculate molten in raw water sample
The carbon dioxide content entered deducts the influence of carbon dioxide, as water sample in the conductivity value of the first electric conductivity detector 3 measurement
Degassing conductivity.
Electric demineralizer 6 is electrolysed water by constant current and generates H in the present invention+And OH-Ion, in electric demineralizer 6
Resin carries out constant regeneration, is not necessarily to acid-alkali regeneration.
Can be used in off-line measurement electric power, electronics and pharmaceuticals industry compared with the conductivity of pure water sample using the present invention, while being also
The measurement of low conductivity water sample conductivity provides a measurement instrument that can be traced to the source and method, energy conservation and environmental protection, and performance is stablized, operation
It is convenient.
This method has following technical characterstic compared with conventional pure water conductivity detection method:
1) carbon dioxide interference is serious when conventional pure water conductivity measurement, and the present invention can effectively avoid carbon dioxide
Interference.
2) conventional pure water conductivity be obtain accurate measurement result can only on-line measurement, the deductible carbon dioxide of the present invention
Interference carry out off-line measurement.
3) present invention provides the measurement instrument and method that one can trace to the source, energy conservation and environmental protection, property for the measurement of pure water conductivity
It can stablize.
4) entire measuring system volume letter is small, easy to operate, can accurately reflect impurities in water content size.
Claims (4)
1. a kind of degassing conductivity measurement system, which is characterized in that including sampling bottle (1), filter core (2), the first electric conductivity detector
(3), means for feeding acid (4), degassing film (5), drainpipe (8), electric demineralizer (6), the second electric conductivity detector (7) and drainpipe
(8)；
The top open part of sampling bottle (1) is provided with bottle cap, has filter core (2) on bottle cap, the outlet of sampling bottle (1) and the first electricity
The entrance for leading detector (3) is connected, and the moisture content of outlet of the first electric conductivity detector (3) is two-way, wherein all the way with means for feeding acid
(4) outlet is connected by the entrance of pipeline and the first paths of Guan Houyu degassing film (5), the first via in degassing film (5)
The outlet in channel is connected with drainpipe (8)；Another way water sample is connected with the water inlet of electric demineralizer (6), electric desalination dress
The water outlet for setting (6) is connected with the entrance of the second paths in degassing film (5), the outlet of the second paths in degassing film (5)
It is connected with the second electric conductivity detector (7) entrance, the electrolysis water of the second electric conductivity detector (7) water outlet and electric demineralizer (6)
Feeder connection is connected, and the electrolysis water passage outlet of electric demineralizer (6) is connected with drainpipe (8) road.
2. a kind of degassing conductivity measuring method, which comprises the following steps:
Water sample is put into sampling bottle (1) after taking, and air removes carbon dioxide therein by filter core (2) afterwards, so that sampling bottle
(1) conductivity of water sample is kept constant in measurement process in, and the water sample of sampling bottle (1) output passes through the first electric conductivity detector
(3) it is divided into two-way after measuring conductivity, wherein the acid for adjusting pH value that water sample is exported through means for feeding acid (4) all the way, then by de-
The first paths heel row in air film (5) enters in drainpipe (8), and another way water sample passes through electric demineralizer (6) and removes in water sample
Zwitterion after enter in the second paths in degassing film (5), the water outlet of the second paths is through second in degassing film (5)
The electrolysis that water is carried out in the electrolysis water passage of electric demineralizer (6) is entered after electric conductivity detector (7) detection water sample conductivity,
In, pass through the H of electrolysis water generation+And OH-Resin regeneration in ion pair electricity demineralizer (6), the water sample after electrolysis are discharged into draining
It manages in (8).
3. a kind of degassing conductivity measuring method according to claim 2, which is characterized in that the second tunnel in degassing film (5)
The water outlet in channel enters in electric demineralizer (6) after the second electric conductivity detector (7) detect water sample conductivity, passes through constant electricity
Galvanic electricity Xie Shui generates H+And OH-To the resin regeneration in electric demineralizer (6).
4. a kind of degassing conductivity measuring method according to claim 2, which is characterized in that two-way water sample is with different in flow rate
Back through degassing film (5), carbon dioxide exchange is carried out in degassing film, it is logical to measure pure water by the second electric conductivity detector (7)
Conductivity after crossing degassing film (5) is simultaneously compared with pure water conductivity, calculates the titanium dioxide in raw water sample in conjunction with flow conditions
Carbon content goes the influence of removing carbon dioxide in the conductivity value of the first electric conductivity detector (3) measurement, obtains the degassing conductance of water sample
Rate value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910854953.7A CN110487850B (en) | 2019-09-10 | 2019-09-10 | Degassing conductivity measurement system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910854953.7A CN110487850B (en) | 2019-09-10 | 2019-09-10 | Degassing conductivity measurement system and method |
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| CN110487850A true CN110487850A (en) | 2019-11-22 |
| CN110487850B CN110487850B (en) | 2023-10-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487851A (en) * | 2019-09-10 | 2019-11-22 | 华能国际电力股份有限公司 | A kind of measuring system and method for the hydrogen conductivity that deaerates |
| CN110487849A (en) * | 2019-09-10 | 2019-11-22 | 华能国际电力股份有限公司 | A kind of multi-parameter water quality measuring system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487851A (en) * | 2019-09-10 | 2019-11-22 | 华能国际电力股份有限公司 | A kind of measuring system and method for the hydrogen conductivity that deaerates |
| CN110487849A (en) * | 2019-09-10 | 2019-11-22 | 华能国际电力股份有限公司 | A kind of multi-parameter water quality measuring system and method |
| CN110487851B (en) * | 2019-09-10 | 2024-06-21 | 华能国际电力股份有限公司 | Measurement system and method for conductivity of degassed hydrogen |
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| CN110487850B (en) | 2023-10-10 |
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