CN2872719Y - Special internally-cooled water processor - Google Patents
Special internally-cooled water processor Download PDFInfo
- Publication number
- CN2872719Y CN2872719Y CN 200520078051 CN200520078051U CN2872719Y CN 2872719 Y CN2872719 Y CN 2872719Y CN 200520078051 CN200520078051 CN 200520078051 CN 200520078051 U CN200520078051 U CN 200520078051U CN 2872719 Y CN2872719 Y CN 2872719Y
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- water
- inner cold
- cooling water
- cold water
- internal cooling
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Abstract
A special internal cooling water processing device comprises an internal cooling water tank, a water pump, and a cooler to construct an internal cooling system of copper wire of motor, wherein serial pipes are provided between above units; a connection pipe is provided on the internal cooling water tank or the serial pipes; and the pipe is connected to the internal cooling water tank and or the serial pipe through an alkaline solution feeding unit for adjusting pH value and an ion exchange unit. The alkaline solution feeding unit feeds NaOH solution to the cooling water of rotor to adjust pH value to weak basicity, and the ion exchange unit includes two parallel ion exchanges with mixed bed or composite bed structure to reduce conductivity and copper ion concentration of cooling water. The utility model can solve the problems caused by water quality index exceeding standard index and improve safety of power generator set.
Description
Technical field
The utility model relates to a kind of water treatment facilities, especially is specifically designed to the inner cold water dedicated water processing unit of homemade double water innercooling electric generator.
Background technology
Homemade double water innercooling electric generator inner cold water water quality index requires pH=7-9, conductivity＜2.0us/cm, and copper ion concentration is less than 40ug/L.But present domestic power plant does not almost have to satisfy above index request for a long time.
The domestic mode that has some power plant to adopt to add corrosion inhibiter to handle is kept copper ion concentration in the double water innercooling electric generator inner cold water less than 40ug/L, but can not long term maintenance.Therefore with the exception of this, the situation of conductivity often occur, have to adopt and frequently change water to keep water quality qualified greater than 2.0us/cm.Even more serious is to add the corrosion inhibiter processing and may cause generator copper conductor blocking problem.
The domestic research that begins the generator cooling-water aspect is in recent years obtaining breakthrough aspect the stator cooling water, and the patent that relates to has a plurality of.
CN200410021855.9 discloses a kind of electric generator inner cooling water water treatment method and apparatus, and its characteristics have been to adopt the catalyst deoxygenation, unite and add alkali and regulate pH value technology automatically and reach the purpose that makes inner cold water water quality qualified.In the prior art of CN200410021855.9, provided among Fig. 2 to unite and add alkali and regulate the control loop method of pH value and reach the purpose that makes inner cold water water quality qualified.
Foregoing invention discloses a kind of electric generator inner cooling circulating water quality processing method and device thereof, at the beginning of generator operation, inwardly injects oxygen and palladium catalyst in the cool circulation water, makes the inwall of copper conductor form Cu
2The O protective layer; Among the normal operation of generator, make the oxygen concentration in the intercooling cycle water keep little oxygen with palladium catalyst, make the metallic copper precipitation oxidized at once; Spent ion exchange resin is removed the electrolyte CO in the intercooling cycle water
2, Cu
+And Cu
2+Thereby, make intercooling cycle electrical conductivity of water＜2.0 μ s/cm; Automatically inwardly add alkali adjusting pH value in the cool circulation water by adder-subtractor, the pH value of intercooling cycle water is remained between the 8-9; In the insulation level that has guaranteed intercooling cycle water, the copper corrosion and the sedimentary formation of lead have been reduced again to greatest extent.Be applicable to the various large and medium generators of taking water-cooled.
Relevant patent such as CN01138301.1, CN02292005.6 is relevant with the inner cold water processing, ion exchange system is also arranged in the related patent disclosure, but it generally adopts an ion interchange unit, can not ensure the balanced operation of water treatment system.Be difficult to guarantee using of water treatment facilities in line stabilization.
Summary of the invention
The utility model purpose is: a kind of inner cold water dedicated water processing unit that is specifically designed to homemade double water innercooling electric generator is provided, overcomes the limitation when adding corrosion inhibiter processing unit and an ion interchange unit processing inner cold water.Especially proposing a kind of composite set makes the inner cold water water quality index energy of homemade double water innercooling electric generator steady in a long-term in qualified indication range.Adopt the combination of pH regulating system and ion interchange unit to reach to make inner cold water water quality qualified purpose, and the special inner cold water water treatment problem that solves homemade double water innercooling electric generator group of the combination of this device.
The purpose of this utility model is achieved in that a kind of inner cold water dedicated water processing unit, constitute generator copper conductor inner cold system by inner cold water case, water pump, cooler (heat-exchange device), be provided with the series connection pipeline between the above-mentioned parts, it is characterized in that on inner cold water case or series connection pipeline, being provided with connecting tube, be connected to again behind adder-subtractor that pipeline connection pH regulates and the ion interchange unit on inner cold water case or the series connection pipeline.
Especially the mode by parallel connection is connected ion interchange unit between inner cold water case or the pipeline.Promptly the ion interchange unit of Jie Ruing is two ion interchange units in parallel.Above combination reaches and makes inner cold water water quality qualified, makes that processing back water quality is better, and makes that the exchange cycle of ion exchange system is longer.
The key of operation of the present utility model is by existing autocontrol method and system, the inner cold water water quality index long-term stability of keeping homemade double water innercooling electric generator is at pH=7-9, in the scope of conductivity＜2.0us/cm, thereby make copper ion concentration less than 40ug/L.
The utility model has the advantages that:
1, adopts secondary anti-super, prevent the effective measures that conductivity exceeds standard, guarantee system safety, stable operation.
2, PH, conductivity, three indexs of copper ion concentration requirement that is up to state standards.
3, life cycle is long, and maintenance workload is little.
4, simple installation, Automatic Control.
Description of drawings
Fig. 1 is the utility model structured flowchart
Fig. 2 is the structural representation that the utility model moves on the prior art basis
Generator windings 1, inner cold water case 2, water pump 3, cooler 4, filter 5, ion interchange unit 6, lye tank 7, measuring pump 8, respirator 9, electrical control cubicles 10, PH meter, 11, conductivity meter 12,13, flowmeter 14.
Embodiment
As shown in Figure 1, inner cold water case, inner cold water pump, cooler (heat-exchange device) constitute generator copper conductor inner cold system, and there is pipeline to be connected into a system, on inner cold water case or pipeline, be provided with connecting tube, pipeline is connected on inner cold water case or the pipeline after connecting pH regulating system and ion interchange unit (claiming mixed bed usually) again, and especially the mode by parallel connection is connected to inner cold system with device.Problems such as metal ion that the water of solution generator copper conductor is cold and conductivity.Be provided with conductivity meter DD, PH meter PH.
As shown in Figure 2, the import of ion interchange unit 6 in parallel links to each other with the outlet of filter 5, and its outlet is communicated with inner cold water case 2; Connecting pipe between the outlet of adder-subtractor and ion interchange unit 6 and the inner cold water case 2 is connected.Cooling water flow is through bypass circuit among the figure, and the flow of inner cold water remains on the 3-10% of total flow usually.The outlet of adder-subtractor, cooler 4, inner cold water pump also can be contained between generator windings 1 and the inner cold water case 2.Ion interchange unit 6 filling ion exchange resin, resin anion (R.A.) adopts not the OH type resin of chloride ion-containing, for example M500KR or IRA400 or SK-10A; Resin cation adopts H type resin, for example S100KR or IR-120 or SK-1B.
Adder-subtractor comprises lye tank 7, measuring pump 8 and electrical control cubicles 10 thereof; The import of measuring pump 8 is connected with lye tank 7, the outlet with ion interchange unit 6 and water tank 2 between connecting pipe be communicated with, the outlet of measuring pump 8 also is provided with check-valves, in case the cooling water of locking system pours in down a chimney into lye tank 7.The upper wall of lye tank 7 is provided with respirator 9, fills the air filtration interleaving agent in the respirator 9; Adopt soda lime, or nitrogen, or barrier film, or molecular sieve, avoid airborne CO2 etc. to dissolve in the alkali lye.Electrical control cubicles 10 can be provided with touch-screen, communication module and instrument for automatic control; In order to display device state, operation indication, parameter setting, motion flow, statistics; Instrument for automatic control adopts PLC, conductivity meter, PH meter etc., and forms the loop that electric conductivity of inside cold water, pH value are controlled automatically with measuring pump.Wherein, the transducer 12 that is used for the transducer 11 of PH meter of automatically control and conductivity meter is located at the inlet pipeline of generator windings 1.The transducer 13 that is used to detect the conductivity meter of demonstration is located at the outlet conduit of ion interchange unit 6, and its effect is a treatment effect of judging ion interchange unit 6, determines to change the time of resin; The transducer 14 of conductivity meter is located on the conjoint outlet pipeline of ion interchange unit 6 and measuring pump 8, and its effect is the resultant effect after judging ion-exchange and adding alkali, to determine to add the amount of alkali.The signal that the transducer 11,12 of conductivity meter, PH meter is gathered send PLC to handle by signal cable, PLC sends 8 unlatchings of control signal control measuring pump or stops, realize regulating automatically the purpose of conductivity meter, pH value, DCS (Distributed Control System) communication contact of PLC and generator master control chamber.The signal that all the sensors is gathered also shows at master-control room and electrical control cubicles 10 respectively, is convenient to operating personnel and understands the water quality situation at any time.
After the normal operation of the homemade double water innercooling electric generator of generator, the part inner cold water is handled by ion exchange system, reduced conductivity; Behind conductivity＜2.0us/cm, the pH regulating system begins to put into operation.The pH regulating system is to regulate automatically, and after operation a period of time, electric conductivity of inside cold water and pH begin to rise.After rising to set point, measuring pump stops dosing.After operation a period of time, conductivity and pH slowly descend.After dropping to set point, measuring pump starts, and begins dosing again.So realize the self-regulating process of whole water quality index.
The ion interchange unit that pipeline is connected in parallel also is the mixed bed of the ion exchange resin formation of two parallel connections, is provided with by-pass valve control on the series connection pipeline of ion interchange unit.
Claims (3)
1, inner cold water dedicated water processing unit, constitute generator copper conductor inner cold system by inner cold water case, water pump, cooler, be provided with the series connection pipeline between the above-mentioned parts, it is characterized in that on inner cold water case or series connection pipeline, being provided with connecting tube, be connected to again behind adder-subtractor that pipeline connection pH regulates and the ion interchange unit on inner cold water case or the series connection pipeline.
2,, it is characterized in that being provided with two ion interchange units in parallel by the described inner cold water dedicated water of claim 1 processing unit.
3,, it is characterized in that on the series connection pipeline of ion interchange unit, being provided with by-pass valve control by the described inner cold water dedicated water of claim 2 processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078051 CN2872719Y (en) | 2005-11-30 | 2005-11-30 | Special internally-cooled water processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520078051 CN2872719Y (en) | 2005-11-30 | 2005-11-30 | Special internally-cooled water processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872719Y true CN2872719Y (en) | 2007-02-21 |
Family
ID=37741059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520078051 Expired - Fee Related CN2872719Y (en) | 2005-11-30 | 2005-11-30 | Special internally-cooled water processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872719Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170195A (en) * | 2011-04-29 | 2011-08-31 | 山西省电力公司电力科学研究院 | Method for treating stator cooling water of generator |
| CN102616886A (en) * | 2012-03-20 | 2012-08-01 | 武汉大学 | Preposed serial connection shunting water quality precision adjustment method and system of cooling water in electric generator |
| CN102659234A (en) * | 2012-05-16 | 2012-09-12 | 湖南省电力公司科学研究院 | Method for treating cooling water in generator |
| CN104386795A (en) * | 2014-09-30 | 2015-03-04 | 中国神华能源股份有限公司 | Electric-generator internal cooling water, application thereof and method for cooling electric generator |
| CN111397801A (en) * | 2020-03-17 | 2020-07-10 | 上海外经集团控股有限公司 | Double-water internal cooling generator water leakage detection method and system |
| CN111682702A (en) * | 2020-06-24 | 2020-09-18 | 中国神华能源股份有限公司国华电力分公司 | Generator stator cooling water system |
| CN113552178A (en) * | 2021-05-27 | 2021-10-26 | 华电电力科学研究院有限公司 | Automatic continuous measurement method for hydrogen conductivity in steam-water sampling |
-
2005
- 2005-11-30 CN CN 200520078051 patent/CN2872719Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170195A (en) * | 2011-04-29 | 2011-08-31 | 山西省电力公司电力科学研究院 | Method for treating stator cooling water of generator |
| CN102616886A (en) * | 2012-03-20 | 2012-08-01 | 武汉大学 | Preposed serial connection shunting water quality precision adjustment method and system of cooling water in electric generator |
| CN102659234A (en) * | 2012-05-16 | 2012-09-12 | 湖南省电力公司科学研究院 | Method for treating cooling water in generator |
| CN104386795A (en) * | 2014-09-30 | 2015-03-04 | 中国神华能源股份有限公司 | Electric-generator internal cooling water, application thereof and method for cooling electric generator |
| CN111397801A (en) * | 2020-03-17 | 2020-07-10 | 上海外经集团控股有限公司 | Double-water internal cooling generator water leakage detection method and system |
| CN111682702A (en) * | 2020-06-24 | 2020-09-18 | 中国神华能源股份有限公司国华电力分公司 | Generator stator cooling water system |
| CN113552178A (en) * | 2021-05-27 | 2021-10-26 | 华电电力科学研究院有限公司 | Automatic continuous measurement method for hydrogen conductivity in steam-water sampling |
| CN113552178B (en) * | 2021-05-27 | 2023-08-04 | 华电电力科学研究院有限公司 | Automatic continuous measurement method for steam-water sampling hydrogen conductivity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |