CN110487851A - A kind of measuring system and method for the hydrogen conductivity that deaerates - Google Patents
A kind of measuring system and method for the hydrogen conductivity that deaerates Download PDFInfo
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- CN110487851A CN110487851A CN201910854958.XA CN201910854958A CN110487851A CN 110487851 A CN110487851 A CN 110487851A CN 201910854958 A CN201910854958 A CN 201910854958A CN 110487851 A CN110487851 A CN 110487851A
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- exchanger
- electric conductivity
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 46
- 239000001257 hydrogen Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 230000001172 regenerating effect Effects 0.000 claims abstract description 75
- 238000007872 degassing Methods 0.000 claims abstract description 57
- 150000001768 cations Chemical class 0.000 claims abstract description 44
- 150000001450 anions Chemical class 0.000 claims abstract description 38
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 18
- 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 44
- 238000005259 measurement Methods 0.000 claims description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 22
- 239000001569 carbon dioxide Substances 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 238000005341 cation exchange Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 238000000691 measurement method Methods 0.000 claims description 4
- 102000010637 Aquaporins Human genes 0.000 abstract 2
- 108010063290 Aquaporins Proteins 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 238000009835 boiling Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000003729 cation exchange resin Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012633 leachable Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003957 anion exchange resin 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
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002699 waste material 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/182—Water specific anions in water
Abstract
The invention discloses the measuring systems and method of a kind of hydrogen conductivity that deaerates, the water outlet of sampling bottle is divided into two-way, wherein it is connected all the way with the outlet of means for feeding acid by the entrance of the first paths in pipeline and Guan Houyu degassing film, the outlet of the first paths of degassing film is connected with drainage pipeline；Another way is connected with the water inlet of electrically regenerative cation exchanger, the water outlet of electrically regenerative cation exchanger is connected through the first electric conductivity detector with the water inlet of electrically regenerative anion exchanger, the water outlet of electrically regenerative anion exchanger is connected with the entrance of the second paths of degassing film, the outlet of the second paths of degassing film is connected to the second electric conductivity detector entrance, the outlet of second electric conductivity detector is connected with the electrolysis aquaporin of electrically regenerative cation exchanger and electrically regenerative anion exchanger, the electrolysis water channel outlet of electrically regenerative anion exchanger is connected with drainage pipeline, the system and method being capable of degassing hydrogen conductivity in accurately online or determined off-line Power Plant Water Vapor.
Description
Technical field
The present invention relates to a kind of measuring system and methods, and in particular to it is a kind of deaerate hydrogen conductivity measuring system and side
Method.
Background technique
Hydrogen conductivity is the important indicator for characterizing power plant water (vapour) purity and erosion, is referred to cationic in tested water (vapour) sample
It is removed and (is converted to H+) after resulting conductivity value is monitored to its conductivity.The ammonia and amine for adjusting pH during this are all
It is removed, remaining salt impurity is converted into the form of acid, erosion anion (Cl-Deng) detection sensitivity be greatly improved.
But the carbon dioxide in air is very easy to enter measuring system influence measurement in practical applications, so very much
In the case of require measurement water degassing (CO2) hydrogen conductivity, more accurately to reflect erosion anion-content in water.At present
The method that power plant's measurement degassing hydrogen conductivity uses all is by water by after ion exchange resin column, recycling boiling process degassing
(CO2) conductivity is measured afterwards.
The defect of the prior art: removing cation using ion exchange column before degassing, such as replace resin not in time, and deaerate hydrogen
The numerical value of conductivity can deviate actual value；The resin regeneration of replacement is incomplete or does not rinse well, releases trace impurity ion
It can cause positive error；Cation exchange resin can discharge low polymer impurity, increase background conductance rate, lead to the hydrogen that deaerates
Conductivity measurement inaccuracy；Most at present is deaerated using boiling process, and the device is complicated, and degasifying effect is bad, leads to the hydrogen that deaerates
Conductivity measurement inaccuracy；It also needs to cool down again when surveying conductivity after boiling process degassing, the difference of temperature leads to the hydrogen conductivity that deaerates
Measurement accuracy is affected；On-line measurement can only be carried out, off-line measurement can not be carried out, and measuring device is bulky；Resin
Resin trouble and time-consuming are replaced when failure, cause measurement that cannot be carried out continuously.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of measurement system of hydrogen conductivity that deaerates is provided
System and method, the system and method can accurately online or determined off-line Power Plant Water Vapor deaerate hydrogen conductivity.
In order to achieve the above objectives, it is of the present invention degassing hydrogen conductivity measuring system include sampling bottle, filter core, electricity again
Raw cation exchanger, means for feeding acid, degassing film, drainage pipeline, the first electric conductivity detector, electrically regenerative anion exchanger and the
Two electric conductivity detectors；
The top open part of sampling bottle is provided with bottle cap, and filter core is provided on bottle cap, and the water outlet of sampling bottle 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, is deaerated
The outlet of the first paths is connected with drainage pipeline in film；The water inlet phase of another way water sample and electrically regenerative cation exchanger
Connection, water inlet phase of the water outlet of electrically regenerative cation exchanger through the first electric conductivity detector with electrically regenerative anion exchanger
Connection, the water outlet of electrically regenerative anion exchanger is connected with the entrance of the second paths in degassing film, second in degassing film
The second electric conductivity detector of outlet of paths is connected with the electrolysis water passage inlet of electrically regenerative cation exchanger, electrically regenerative
The electrolysis water passage outlet of cation exchanger is connected with the electrolysis water passage inlet of electrically regenerative anion exchanger, electrically regenerative
The electrolysis water passage outlet of anion exchanger is connected with drainage pipeline.
It is of the present invention degassing hydrogen conductivity measurement method the following steps are included:
Air enters in sampling bottle after passing through filter core, and Carbon Dioxide in Air is completely removed, so that water in sampling bottle
The conductivity of sample is kept constant in measurement process, and the water sample of sampling bottle output is divided into two-way, wherein water sample is filled through acid adding all the way
The first paths heel row through degassing film goes out after setting the acid for adjusting pH value of output；Another way water sample passes through electrically regenerative cation exchange
Device enters in the first electric conductivity detector the hydrogen conductivity for measuring water sample after removing the cation in water removal, then into electrically regenerative yin
Anion is removed in ion-exchanger, the water sample for removing zwitterion enters in the second paths in degassing film, then again into
Enter and measure water outlet conductivity in the second electric conductivity detector, the second electric conductivity detector outlet water sample sequentially enters electrically regenerative cation
The electrolysis water passage of exchanger and electrically regenerative anion exchanger, water is electrolysed wherein generates H+And OH-Resin is regenerated,
It then drains into drainage pipeline.
Electrically regenerative cation exchanger and electrically regenerative anion exchanger are electrolysed water by constant current and generate H+And OH-, with
Realize the constant regeneration of resin in electrically regenerative cation exchanger and electrically regenerative anion exchanger；Two-way water sample is with different in flow rate
Back through degassing film, carbon dioxide exchange is carried out in degassing film, by the second electric conductivity detector measure conductivity with it is pure
The comparison of water conductivity, and the carbon dioxide content of flow conditions calculating raw water sample is combined, by being surveyed in the first electric conductivity detector
The influence that carbon dioxide is deducted in the hydrogen conductivity value of amount, obtains the degassing hydrogen conductivity of water sample.
The invention has the following advantages:
The measuring system and method for degassing hydrogen conductivity of the present invention pass through the second Conductivity detection when specific operation
The conductivity of water sample of device measurement is compared with the conductivity of pure water, and combines the carbon dioxide of flow conditions calculating raw water sample
Content deducts the influence of carbon dioxide in the hydrogen conductivity value of the first electric conductivity detector measurement, obtains the degassing hydrogen electricity of water sample
The purpose of conductance hydrogen conductivity, it can be achieved that online or determined off-line water sample deaerates, energy conservation and environmental protection, performance is stablized, easy to operate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is pH value in the present invention to the influence diagram of total carbonic acid concentration distribution.
Wherein, 1 it is sampling bottle, 2 be filter core, 3 be means for feeding acid, 4 be degassing film, 5 is electrically regenerative cation exchanger, 6
It is electrically regenerative anion exchanger for the first electric conductivity detector, 7,8 be the second electric conductivity detector, 9 is drainage pipeline.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the measuring system of degassing hydrogen conductivity of the present invention includes sampling bottle 1, filter core 2, electrically regenerative sun
Ion-exchanger 5, means for feeding acid 3, degassing film 4, drainage pipeline 9, the first electric conductivity detector 6, electrically regenerative anion exchanger 7 and
Second electric conductivity detector 8；The top open part of sampling bottle 1 is provided with bottle cap, and filter core 2, the water outlet of sampling bottle 1 are provided on bottle cap
Mouth is divided into two-way, wherein passing through the entrance of the first paths in pipeline and Guan Houyu degassing film 4 with the outlet of means for feeding acid 3 all the way
It is connected, the outlet of first paths is connected with drainage pipeline 9 in degassing film 4；Another way water sample and electrically regenerative cation are handed over
The water inlet of parallel operation 5 is connected, the water outlet of electrically regenerative cation exchanger 5 through the first electric conductivity detector 6 and electrically regenerative yin from
The water inlet of sub- exchanger 7 is connected, and the water outlet of electrically regenerative anion exchanger 7 enters with the second paths in degassing film 4
Mouth is connected, the electricity of the second electric conductivity detector of outlet 8 of the second paths and electrically regenerative cation exchanger 5 in degassing film 4
Solution water passage entrance is connected, electrolysis water passage outlet and the electrically regenerative anion exchanger 7 of electrically regenerative cation exchanger 5
Electrolysis water passage inlet is connected, and the electrolysis water passage outlet of electrically regenerative anion exchanger 7 is connected with drainage pipeline 9, takes off
Air film 4 is carbon dioxide removal film.
It is of the present invention degassing hydrogen conductivity measurement method the following steps are included:
Air enters in sampling bottle 1 after passing through filter core 2, and the carbon dioxide in air is completely removed, so that sampling bottle 1
The conductivity of middle water sample is kept constant in measurement process, and the water sample that sampling bottle 1 exports is divided into two-way, wherein water sample is through adding all the way
The first paths heel row through degassing film 4 goes out after the acid for adjusting pH value that sour device 3 exports；Another way water sample by it is electrically regenerative sun from
Sub- exchanger 5 enters in the first electric conductivity detector 6 hydrogen conductivity for measuring water sample after removing the cation in water removal, then into
Anion is removed in electrically regenerative anion exchanger 7, the water sample for removing zwitterion enters the second paths in degassing film 4
In, then enter back into the second electric conductivity detector 8 and measure water outlet conductivity, the second electric conductivity detector 8 output water sample successively into
Enter into electrically regenerative cation exchanger 5 and electrically regenerative anion exchanger 7 and be electrolysed water passage, water electrolysis generates H+And OH-, right
Resin is regenerated in electrically regenerative cation exchanger 5 and electrically regenerative anion exchanger 7, is then drained into drainage pipeline 9.
Electrically regenerative cation exchanger 5 and electrically regenerative anion exchanger 7 are electrolysed water by constant current and generate H+And OH-
Ion, to realize the constant regeneration of resin in electrically regenerative cation exchanger 5 and electrically regenerative anion exchanger 7；Two-way water sample
With different in flow rate back through degassing film 4, carbon dioxide exchange is carried out in degassing film, is measured by the second electric conductivity detector 8
The conductivity of water sample be compared with the conductivity of pure water, and combine flow conditions calculate raw water sample carbon dioxide content,
By deducting the influence of carbon dioxide in the hydrogen conductivity value that the first electric conductivity detector 6 measures, the degassing hydrogen electricity of water sample is obtained
Conductance.
Degasification process in the present invention are as follows: two-way water sample flows counterflow through degassing film 4 with different in flow rate, passes through in the process
The pH value of water sample all the way is adjusted to 3 hereinafter, the carbonate of various forms is converted into carbon dioxide in water sample, with reference to figure by acid adding
2, carbon dioxide is entered in another way pure water by degassing film 4, and another way pure water enters after absorbing carbon dioxide in degassing film 4
In second electric conductivity detector 8, by the measurement of the second electric conductivity detector 8 by the conductivity of water sample after degassing film 4, by the conductivity
It is compared with the conductivity of pure water, and can accurately calculate the carbon dioxide content dissolved in raw water sample in conjunction with flow conditions,
The degassing hydrogen electricity of water sample can be obtained in the influence that carbon dioxide is deducted in the hydrogen conductivity value of the first electric conductivity detector 8 measurement
Conductance can accurately deduct in water 99% or more carbon dioxide during measuring degassing hydrogen conductivity using the present invention.
Pass through the Yang Yin in electrically regenerative cation exchanger 5 and the removal water sample of electrically regenerative anion exchanger 7 in the present invention
Ion, the interior trace cation exchanger resin and anion exchange resin loaded utilize constant current electrolysis water to generate H+With
OH-Carry out regenerated in real time.
NH in Power Plant Water Vapor4 +Content highest, the present invention is with NH4 +Carry out the electrically regenerative 5 pairs of sun of cation exchanger of experiment investigation
The removal rate of ion, specific test data are shown in Table 1.
Table 1
Electrically regenerative cation exchanger 5 can effectively remove the cation in steam, while cation exchange tree therein
Rouge, without dissolution, keeps the result of measurement more accurate and reliable in exchange process, with the water outlet anion measurement of conventional hydrogen conductance column
As a result comparison is shown in Table 2.
Table 2
As can be seen from Table 2, the common cationic exchange column that power plant's survey hydrogen conductivity uses is pure due to having loaded a large amount of resins
Water contains a small amount of formate, acetate and sulfate radical in being discharged after exchange column, leads to measurement result and actual measured value
There is certain deviation；It is filled with minimal amount of cation exchange resin in electrically regenerative cation exchanger 5 in the present invention, is discharged
Identical as water inlet anion-content, cation is all converted to H in this process+, leachable is not measured in water outlet, is shown electrically regenerative
Cation exchanger 5 can effectively remove cation in water, while will not bring leachable into water outlet.
The measurement process of traditional measuring system are as follows: water sample is heated by cation exchange column by heating coil
Remove CO therein2Water sample is being cooled to 40 DEG C or so by (general removal rate is up to 80%), and water sample is surveyed by electric conductivity detector
The conductivity of amount is the hydrogen conductivity that deaerates, wherein resin needs frequent regeneration in cation exchange column, and deaerates hydrogen conductivity only
It can on-line measurement.
Aggressivity anion-content in steam can be accurately reflected using the present invention, test result is as shown in table 3.
Table 3
With the present invention can online or off-line measurement deaerate hydrogen conductivity, can be seen that from 3 data of table, the reason of measured value and standard liquid
It coincide substantially by conductivity value, measurement result of the invention can accurately reflect aggressivity anion-content in steam.
The present invention revolutionizes the measuring system and flow path of conventional degassing hydrogen conductivity, and measurement result accuracy is higher,
And it can be with off-line measurement also with on-line measurement.
The present invention has following technical characterstic compared with the hydrogen conductivity detection method that routinely deaerates:
1) present invention does not use boiling heating removing CO2, CO in water is removed with degassing film 4 at normal temperature2And it accurately counts
Amount, is deducted, energy conservation and environmental protection in hydrogen conductivity measurement result.
2) electrically regenerative cation exchanger 5, which can guarantee, effectively removes in water cation and without any dissolution under measuring condition
Object.
3) electrically regenerative cation exchanger 5 and electrically regenerative anion exchanger 7 persistently provide electricity using low power loss constant source
Source electrolysis water generates H+And OH-Regenerating resin does not generate any acid-base waste fluid.
4) entire measuring system volume letter is small, is easily installed, and can be used as in-line meter use, also can be used as portable meter
It is offline to use, erosion anion-content size in water can be accurately reflected.
Claims (3)
1. a kind of measuring system for the hydrogen conductivity that deaerates, which is characterized in that including sampling bottle (1), electrically regenerative cation exchanger
(5), means for feeding acid (3), degassing film (4), drainage pipeline (9), the first electric conductivity detector (6), electrically regenerative anion exchanger (7)
And second electric conductivity detector (8)；
The top open part of sampling bottle (1) is provided with bottle cap, is provided on bottle cap filter core (2), and the water outlet of sampling bottle (1) is divided into two
Road, wherein the entrance that the outlet of water sample and means for feeding acid (3) passes through the first paths in pipeline and Guan Houyu degassing film (4) all the way
It is connected, the outlet of the first paths is connected with drainage pipeline (9) in degassing film (4)；Another way water sample and it is electrically regenerative sun from
The water inlet of sub- exchanger (5) is connected, and water outlet and the first electric conductivity detector (6) of electrically regenerative cation exchanger (5) enter
Mouth of a river connection, the first electric conductivity detector (6) water outlet is connected with the water inlet of electrically regenerative anion exchanger (7), electrically regenerative
The water outlet of anion exchanger (7) is connected with the entrance of the second paths in degassing film (4), the second tunnel in degassing film (4)
The outlet in channel is connected to the second electric conductivity detector (8) entrance, and the second electric conductivity detector (8) water outlet and electrically regenerative cation are handed over
The electrolysis water passage inlet of parallel operation (5) is connected, the electrolysis water passage outlet and electrically regenerative yin of electrically regenerative cation exchanger (5)
The electrolysis water passage inlet of ion-exchanger (7) is connected, the electrolysis water passage outlet of electrically regenerative anion exchanger (7) and row
Waterpipe (9) is connected.
2. a kind of measurement method for the hydrogen conductivity that deaerates, which is characterized in that based on degassing hydrogen conductivity described in claim 1
Measuring system, comprising the following steps:
Air enters in sampling bottle (1) after passing through filter core (2), and the carbon dioxide in air is removed, so that in sampling bottle (1)
The conductivity of water sample is kept constant in measurement process, and the water sample of sampling bottle (1) output is divided into two-way, wherein filling all the way through acid adding
The first paths heel row through degassing film (4) goes out after setting the acid for adjusting pH value of (3) output；Another way is handed over by electrically regenerative cation
Parallel operation (5) enters in the first electric conductivity detector (6) hydrogen conductivity for measuring water sample after removing the cation in water removal, then into
Anion is removed in electrically regenerative anion exchanger (7), the water sample for removing zwitterion enters the second tunnel in degassing film (4) and leads to
In road, then enters back into and measure water outlet conductivity in the second electric conductivity detector (8), the water sample of the second electric conductivity detector (8) output
In the electrolysis water passage for sequentially entering electrically regenerative cation exchanger (5) and electrically regenerative anion exchanger (7), wherein water
It is electrolysed by constant current and generates OH-And H+, in electrically regenerative cation exchanger (5) and electrically regenerative anion exchanger (7)
Resin carries out regenerated in real time, then drains into drainage pipeline (9).
3. the measurement method of degassing hydrogen conductivity according to claim 1, which is characterized in that electrically regenerative cation exchanger
(5) and electrically regenerative anion exchanger (7) is electrolysed water by constant current and generates H+And OH-, to realize electrically regenerative cation exchange
The constant regeneration of resin in device (5) and electrically regenerative anion exchanger (7)；Two-way water sample is with different in flow rate back through degassing film
(4), carbon dioxide exchange is carried out in degassing film, the conductance of the conductivity and pure water that measure by the second electric conductivity detector (8)
Rate is compared, and combines the carbon dioxide content of flow conditions calculating raw water sample, in the hydrogen of the first electric conductivity detector (6) measurement
The influence that carbon dioxide is deducted in conductivity value, obtains the degassing hydrogen conductivity of water sample.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910854958.XA CN110487851A (en) | 2019-09-10 | 2019-09-10 | A kind of measuring system and method for the hydrogen conductivity that deaerates |
| PCT/CN2020/103610 WO2021047298A1 (en) | 2019-09-10 | 2020-07-22 | System and method for measuring conductivity of degassed hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910854958.XA CN110487851A (en) | 2019-09-10 | 2019-09-10 | A kind of measuring system and method for the hydrogen conductivity that deaerates |
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| CN110487851A true CN110487851A (en) | 2019-11-22 |
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| CN201910854958.XA Pending CN110487851A (en) | 2019-09-10 | 2019-09-10 | A kind of measuring system and method for the hydrogen conductivity that deaerates |
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| WO (1) | WO2021047298A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2021047298A1 (en) * | 2019-09-10 | 2021-03-18 | 西安热工研究院有限公司 | System and method for measuring conductivity of degassed hydrogen |
| CN115343536A (en) * | 2022-08-23 | 2022-11-15 | 浙江西热利华智能传感技术有限公司 | Power station water vapor multi-parameter cooperative measurement system and method |
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