CN103309327B - Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water - Google Patents
Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water Download PDFInfo
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- CN103309327B CN103309327B CN201310227548.5A CN201310227548A CN103309327B CN 103309327 B CN103309327 B CN 103309327B CN 201310227548 A CN201310227548 A CN 201310227548A CN 103309327 B CN103309327 B CN 103309327B
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- cold water
- inner cold
- hydrogen
- conductivity
- cooling water
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000001257 hydrogen Substances 0.000 title claims abstract description 57
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 57
- 239000000498 cooling water Substances 0.000 title claims abstract description 23
- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000005070 sampling Methods 0.000 claims abstract 7
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 238000013178 mathematical model Methods 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229940116318 copper carbonate Drugs 0.000 description 2
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 description 2
- 229960004643 cupric oxide Drugs 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- -1 and in running Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention relates to an auxiliary equipment system of a power generator of a thermal power plant, belongs to the field of electromechanical integration, and particularly relates to a monitoring device for detecting leak hydrogen in internal cooling water and evaluating the influence on the quality of the internal cooling water. The monitoring device comprises a power generator, an internal cooling water tank and an internal cooling water pump, and is characterized in that outlet online conductivity and pH (potential of hydrogen) meters are connected with a manual stop valve of an inlet sampling tube, and the manual stop valve of the inlet sampling tube is further connected onto an internal cooling water outlet tube of the power generator; inlet online conductivity and pH meters are connected with a manual stop valve of an outlet sampling tube, and the manual stop valve of the outlet sampling tube is further connected onto an internal cooling water inlet tube of the power generator; a water tank vent online hydrogen leak detector is connected with a manual stop valve of a water tank vent sampling tube, and the manual stop valve of the water tank vent sampling tube is further connected to a vent of the internal cooling water tank. The monitoring device has the advantages that the condition of the quality of the internal cooling water can be continuously detected and can be evaluated and monitored, and the monitoring device guarantees that the influence of the leak hydrogen on the quality of the internal cooling water can be timely and accurately discovered and evaluated and the power generator can run safely.
Description
Technical field
The present invention relates to a kind of generator subsidiary engine device systems of fuel-burning power plant, belong to field of electromechanical integration, particularly relate to a kind of hydrogen that detects and to bleed in inner cold water and assessment affects the monitoring device of inner cold water water quality.
Background technology
The safe operation of electric generator inner cooling water water quality to unit is most important.Generator is in start-up course, because not thorough with hydrogen exchange carbon dioxide, and in running, air bleeds often through sealing oil system, all can pollute hydrogen.Because Hydrogen Vapor Pressure is higher than electric generator inner cooling water pressure, hydrogen is often through polytetrafluoro water connecting pipe joint or connecting portion or the female pipe FlexbleJoint corrugated tube and steel flange joint weld place exists sand holes or crackle bleeds in inner cold water of intaking, capital causes the pH of inner cold water to decline, conductivity anomaly, causes serious consequence.Work as H
2and CO
2enter into after inner cold water causes inner cold water water quality abnormal, following impact can be caused:
1, CO is dissolved in water
2on the impact of copper conductor corrosion.
Electric generator inner cooling water is pure water, and resiliency is very little, even if there is a small amount of CO
2enter, the pH value of water also can be made sharply to decline, and minimum pH value can be down to less than 6, makes copper fall into corrosion region, and the diaphragm on copper surface is damaged, and causes heavy corrosion.In addition, CO
2also can with oxygen synergy, make the cupric oxide diaphragm on copper surface change basic copper carbonate into, reaction equation:
2Cu
2O＋CO
2＋H
2O＋O
2→2CuCO·2Cu(OH)
2
Due to the loose product that basic copper carbonate is a kind of green, be easy to peel off under current scour, the content of dissolved copper in water is increased.
2, H
2there is reducing action, can Reduction of Oxide be made, as reductive copper oxide:
The copper restored can be separated out in the place that stator conductor temperature is high, and form uneven copper facing phenomenon, cause the flow area of stator pipeline to reduce, resistance strengthens, and its cooling capacity is declined, causes generator line rod overheated.
3, when above-mentioned two kinds of impacts are serious, all likely block hollow copper conductor, cause line rod scaling loss.
4, inner cold water conductivity raises, and inner cold water electric conductivity can be made to strengthen, cause generator lend wire shorted to earth, causes leakage current and energy loss to increase, also electric flashover can occur time serious.
As shown in Figure 1, in prior art in electric generator inner cooling water system, only there are the conductivity, the pH value that detect electric generator inner cooling water inlet or outlet, to detect inner cold water water quality situation.Due to the conductivity of inner cold water water quality, the many factors of pH value can be affected, when be only due to hydrogen to bleed in inner cold water and cause the conductivity of inner cold water, pH value change time, cannot promptly and accurately judge that this affects situation, thus there is engine health hidden danger.Therefore, monitoring analysis hydrogen bleeds, and also to assess the impact caused in inner cold water most important.
There is no special detection at present to bleed in inner cold water for hydrogen and assessment affects the monitoring device of inner cold water water quality.
Summary of the invention
The present invention is directed to problems of the prior art, there is provided a kind of hydrogen that detects to bleed in inner cold water and assessment affect the monitoring device of inner cold water water quality, its objective is that solving hydrogen to bleed in inner cold water and the problem affecting the aspects such as the excellent burn into blocking of generator line that inner cold water water quality brings.
The technical solution adopted for the present invention to solve the technical problems is:
Detect hydrogen to bleed in inner cold water and assessment affects the monitoring device of inner cold water water quality, comprising: generator, inner cold water water tank, inner cold water pump; Be shown to be connected with the manual pipe valve of entrance stopple coupon by the online conductivity of outlet and pH, the manual pipe valve of entrance stopple coupon is connected on electric generator inner cooling water outlet pipe again; The online conductivity of entrance and pH table are connected with the manual pipe valve of outlet stopple coupon, and the manual pipe valve of outlet stopple coupon is connected on electric generator inner cooling water inlet tube again; The online hydrogen gas leakage detector of water tank pneumostome is connected with the manual pipe valve of water tank pneumostome stopple coupon, and the manual pipe valve of water tank pneumostome stopple coupon is connected to inner cold water case pneumostome place again.
Wherein: the signal input part of PLC is respectively with the online conductivity of outlet and pH shows, the online conductivity of entrance and pH shows and the online hydrogen gas leakage detector of water tank pneumostome is connected; Meanwhile, the signal output part of PLC is connected with host computer and warning device.
The described online hydrogen gas leakage detector of water tank pneumostome can replace with manually holding hydrogen gas leakage detector leak detection.
Described host computer and warning device, wherein host computer refers to that people directly can send the computing machine of manipulation order, screen shows in real time the conductivity (DD) of entry and exit, pH value and leaks hydrogen number situation of change and result of calculation.
Detect hydrogen to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, comprise Gather and input signal, founding mathematical models; Implement open loop and calculate control; Input parameter defence program is set; Concrete monitoring method is as follows:
The information collected is outputted to host computer and warning device by a.PLC Programmable Logic Controller 10; After host computer Received signal strength, Real time displaying inner cold water goes out, enters the online conductivity (DD) of generator, pH value and leaks the operating condition of hydrogen number;
B. host computer watch-keeping, calculate conductivity (DD), pH value and leak the situation of change of hydrogen number;
C. alerting signal is sent according to the situation of change of conductivity (DD), pH value and leakage hydrogen number by warning device.
The signal input part of described PLC is respectively the inner cold water entry and exit passing in and out generator and samples the leakage hydrogen amount of online conductivity (DD), pH value and the water tank leakage hydrogen device detection detected or manually complete leak detection; Meanwhile, the signal of PLC is to host computer and warning device output alarm signal.
The computing platform that described PLC is made up of host computer and fractional hardware, analog quantity and switching value can be passed through input interface input signal by it, after Logic judgment and computing, then pass to warning device by with the form of analog quantity and switching value by output interface.
Described Gather and input signal, goes out, enters the online conductivity (DD) of generator, pH value for inner cold water and leak hydrogen number etc. to be signal source in original system.
Described founding mathematical models, according to carbon dioxide, air in hydrogen to the theory relation of conductivity (DD), pH value in inner cold water water quality, establishment mathematical model, and draw out, enter conductivity and pH value difference in the inner cold water of generator by calculated with mathematical model, compare, analyze, judge.
Described enforcement open loop calculates and controls, and is the actual measurement parameter by control object, by parameter chart, calculates conductivity, pH value difference, and compare with former end difference, once be greater than a certain value of former end difference, will send alerting signal.
Described arranges input parameter defence program, for prevent because of input parameter insincere time, send false command, guarantee the accuracy of result of calculation.
Advantage of the present invention and beneficial effect are:
The present invention owing to installing a set of on-line measurement inner cold water conductivity (DD) and pH value table respectively additional on electric generator inner cooling water inlet and outlet, and install a set of online hydrogen monitoring device additional at inner cold water water tank pneumostome place, and a supporting control system, after detecting and changing into and out of the inner cold water conductivity (DD) of generator, pH value and water tank pneumostome hydrogen monitor value, by assessment, judge to affect situation, Timeliness coverage inner cold water leaks hydrogen situation, eliminates engine health hidden danger.
The present invention continuous detecting can also assess monitoring inner cold water water quality situation, provides safeguard on the impact of inner cold water water quality and the safe operation of generator for promptly and accurately finding and assessing Lou hydrogen.The present invention also have can promptly and accurately find and assess Lou hydrogen on the impact of inner cold water water quality; Avoid the equipment loss that generator is unnecessary, improve the security of unit; Can also as production, its economic benefits.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Accompanying drawing explanation
Fig. 1 is the structural representation adopting hydrogen leakage monitor system in background technology;
Fig. 2 is primary structure schematic diagram of the present invention.
In figure: generator 1, inner cold water water tank 2, inner cold water pump 3, the manual pipe valve 4 of entrance stopple coupon, the manual pipe valve 5 of outlet stopple coupon, the manual pipe valve 6 of water tank pneumostome stopple coupon, export online conductivity and pH table 7, the online conductivity of entrance and pH table 8, the online hydrogen gas leakage detector 9 of water tank pneumostome, PLC 10, host computer and warning device 11.
Embodiment
The present invention detects hydrogen to bleed in inner cold water and assessment affects the monitoring device of inner cold water water quality, is applied in the generator subsidiary engine equipment of fuel-burning power plant.
The present invention implements by following technical scheme:
The present invention includes: PLC 10, a host computer and warning device 11, the manual pipe valve 4 of entrance stopple coupon, the manual pipe valve 5 of outlet stopple coupon, the manual pipe valve 6 of water tank pneumostome stopple coupon, export online conductivity and pH table 7, the online conductivity of entrance and pH table 8, the online hydrogen gas leakage detector 9 of water tank pneumostome forms.
Export online conductivity and pH table 7 is connected with the manual pipe valve 4 of entrance stopple coupon, the manual pipe valve 4 of entrance stopple coupon is connected on electric generator inner cooling water outlet pipe again; The online conductivity of entrance and pH table 8 are connected with the manual pipe valve 5 of outlet stopple coupon, and the manual pipe valve 5 of outlet stopple coupon is connected on electric generator inner cooling water inlet tube again; The online hydrogen gas leakage detector of water tank pneumostome 9 is connected with the manual pipe valve 6 of water tank pneumostome stopple coupon, and the manual pipe valve 6 of water tank pneumostome stopple coupon is connected to inner cold water case pneumostome place again.
Wherein: the signal input part of PLC 10 is connected with the online conductivity of outlet and pH table 7, the online conductivity of entrance and pH table 8 and the online hydrogen gas leakage detector 9 of water tank pneumostome respectively; Meanwhile, the signal output part of PLC 10 is connected with host computer and warning device 11.
As shown in Figure 2, this system includes PLC 10 and a host computer and warning device 11; So-called host computer refers to that people directly can send the computing machine of manipulation order, screen shows in real time the conductivity (DD) of entry and exit, pH value and leaks hydrogen number situation of change and result of calculation.The signal input part of PLC 10 is respectively the inner cold water entry and exit passing in and out generator and samples the leakage hydrogen amount of online conductivity (DD), pH value and the water tank leakage hydrogen device detection detected or manually complete leak detection; Meanwhile, the signal of PLC 10 is to host computer and warning device 11 output alarm signal.
According to the principle that carbon dioxide has an impact to the conductivity of inner cold water and pH value, generally adopt:
A. host computer and warning device 11 can go out, enter the online conductivity (DD) of generator, pH value and leak the operating condition of hydrogen number by Real time displaying inner cold water;
B. watch-keeping, calculate conductivity (DD), pH value and leak the situation of change of hydrogen number;
C. alerting signal is sent according to the situation of change of conductivity (DD), pH value and leakage hydrogen number.
The computing platform that PLC 10 is made up of host computer and fractional hardware, analog quantity and switching value can be passed through input interface input signal by it, after Logic judgment and computing, then pass to warning device by with the form of analog quantity and switching value by output interface.
Gather and input signal.The input signal of this device is that inner cold water goes out, enters the online conductivity (DD) of generator, pH value and leak hydrogen number etc. to be signal source in original system.
Founding mathematical models.According to carbon dioxide, air in hydrogen to the theory relation of conductivity (DD), pH value in inner cold water water quality, establishment mathematical model, and draw out, enter conductivity and pH value difference in the inner cold water of generator by calculated with mathematical model, compare, analyze, judge.
Implement open loop and calculate control.By the actual measurement parameter of control object, by parameter chart, calculate conductivity, pH value difference, and compare with former end difference, once be greater than a certain value of former end difference, will alerting signal be sent.
Input parameter defence program is set.For prevent because of input parameter insincere time, send false command, guarantee the accuracy of result of calculation.
Claims (8)
1. detect hydrogen to bleed in inner cold water and assessment affects the monitoring device of inner cold water water quality, comprising: generator (1), inner cold water water tank (2) and inner cold water pump (3); It is characterized in that:
Export online conductivity and pH table (7) be connected with the manual pipe valve (4) of entrance stopple coupon, the manual pipe valve (4) of entrance stopple coupon is connected on electric generator inner cooling water outlet pipe again; The online conductivity of entrance and pH table (8) are connected with the manual pipe valve (5) of outlet stopple coupon, and the manual pipe valve (5) of outlet stopple coupon is connected on electric generator inner cooling water inlet tube again; The online hydrogen gas leakage detector of water tank pneumostome (9) is connected with the manual pipe valve (6) of water tank pneumostome stopple coupon, and the manual pipe valve (6) of water tank pneumostome stopple coupon is connected to inner cold water case pneumostome place again;
The signal input part of PLC (10) is shown (7), the online conductivity of entrance and pH respectively and is shown (8) and the online hydrogen gas leakage detector of water tank pneumostome (9) is connected with the online conductivity of outlet and pH; Meanwhile, the signal output part of PLC (10) is connected with host computer and warning device (11);
The described online hydrogen gas leakage detector of water tank pneumostome (9) can replace with manually holding hydrogen gas leakage detector leak detection;
Described host computer and warning device (11), wherein host computer refers to that people directly can send the computing machine of manipulation order, screen shows in real time the conductivity (DD) of entry and exit, pH value and leaks hydrogen number situation of change and result of calculation.
2. detect hydrogen to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: comprise Gather and input signal, founding mathematical models; Implement open loop and calculate control; Input parameter defence program is set; Concrete monitoring method is as follows:
A. the information collected is outputted to host computer and warning device by PLC (10); After host computer Received signal strength, Real time displaying inner cold water goes out, enters the online conductivity (DD) of generator, pH value and leaks the operating condition of hydrogen number;
B. host computer watch-keeping, calculate conductivity (DD), pH value and leak the situation of change of hydrogen number;
C. alerting signal is sent according to the situation of change of conductivity (DD), pH value and leakage hydrogen number by warning device.
3. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affect the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: online conductivity (DD), pH value and water tank that the inner cold water entry and exit sampling that the signal input part of described PLC (10) is respectively turnover generator detects leak the leakage hydrogen amount of hydrogen device detection or manually complete leak detection; Meanwhile, the signal of PLC (10) is to host computer and warning device (11) output alarm signal.
4. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: analog quantity and switching value can be passed through input interface input signal by described PLC (10), after Logic judgment and computing, then pass to warning device by with the form of analog quantity and switching value by output interface.
5. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: described Gather and input signal, go out, enter the online conductivity (DD) of generator, pH value for inner cold water and leak hydrogen number to be signal source in original system.
6. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: described founding mathematical models, according to carbon dioxide, air in hydrogen to the theory relation of conductivity (DD), pH value in inner cold water water quality, establishment mathematical model, and draw out, enter conductivity and pH value difference in the inner cold water of generator by calculated with mathematical model, compare, analyze, judge.
7. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality, it is characterized in that: described enforcement open loop calculates and controls, it is the actual measurement parameter by control object, by parameter chart, calculate conductivity, pH value difference, and compare with former end difference, once be greater than a certain value of former end difference, will alerting signal be sent.
8. detection hydrogen according to claim 2 to bleed in inner cold water and assessment affects the monitoring method of the monitoring device of inner cold water water quality; it is characterized in that: described arranges input parameter defence program; for prevent because of input parameter insincere time, send false command, guarantee the accuracy of result of calculation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310227548.5A CN103309327B (en) | 2013-06-08 | 2013-06-08 | Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water |
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|---|---|---|---|
| CN201310227548.5A CN103309327B (en) | 2013-06-08 | 2013-06-08 | Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water |
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| CN103309327B true CN103309327B (en) | 2015-06-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629657B (en) * | 2013-10-11 | 2015-05-27 | 国家电网公司 | Method and device for monitoring high-temperature oxide scales of generator set |
| CN104614590A (en) * | 2015-02-03 | 2015-05-13 | 北京华科仪科技股份有限公司 | Continuous online hydrogen conductivity measurement device |
| CN105043693B (en) * | 2015-06-05 | 2018-01-12 | 河南省日立信股份有限公司 | Quantity of gas leakage detection means and detection method in aqueous small mouth container |
| CN109541136A (en) * | 2018-11-13 | 2019-03-29 | 郑州迪邦科技有限公司 | A kind of inner cold water case hydrogen content on-line detecting system |
| CN112225291A (en) * | 2020-08-11 | 2021-01-15 | 华电电力科学研究院有限公司 | Generator inner cooling water treatment device based on separated bed EDI and control method |
| CN112798644B (en) * | 2020-12-28 | 2022-04-12 | 武汉大学 | Film thermal resistance measuring system and method for evaluating corrosion degree and pickling and passivation effects of hollow copper conductor of generator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07114933A (en) * | 1993-10-18 | 1995-05-02 | Osaka Gas Co Ltd | Fuel cell power generator |
| CN2700860Y (en) * | 2004-06-04 | 2005-05-18 | 刘庆坤 | Hydrogen cold electric generator watertight online detection apparatus |
| CN200951964Y (en) * | 2006-07-12 | 2007-09-26 | 江西省电力科学研究院 | Moving large, power generator intercooling water quality controlling and testing device |
| CN201272702Y (en) * | 2008-07-04 | 2009-07-15 | 刘宝山 | Automatic regulating device for inner cold water conductance and acidity of generator |
| CN201825772U (en) * | 2010-07-09 | 2011-05-11 | 长沙理工大学 | Inner cooling water pH value intelligent control device of power generator |
| CN102426466B (en) * | 2011-10-12 | 2013-11-06 | 浙江省电力公司电力科学研究院 | Power generator internal cold water quality monitoring control system based on multi-point control |
| CN202390269U (en) * | 2011-12-15 | 2012-08-22 | 宁夏电力公司电力科学研究院 | Inner cooling water automatic alkalifying treatment device for power plant |
| CN203287766U (en) * | 2013-06-08 | 2013-11-13 | 国家电网公司 | Monitoring device for detecting leakage of hydrogen into inner cooling water and evaluating impact on quality of inner cooling water |
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