CN203922906U - The two micro-alkali systems of cold water electrodeionization of a kind of generator - Google Patents
The two micro-alkali systems of cold water electrodeionization of a kind of generator Download PDFInfo
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- CN203922906U CN203922906U CN201420342877.4U CN201420342877U CN203922906U CN 203922906 U CN203922906 U CN 203922906U CN 201420342877 U CN201420342877 U CN 201420342877U CN 203922906 U CN203922906 U CN 203922906U
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Abstract
The utility model relates to the two micro-alkali systems of cold water electrodeionization of a kind of generator, it is that inner cold water bypass water intaking valve and inner cold water flooding velocity meter are set on inner cold water bypass water inlet pipe, exit end at inner cold water flooding velocity meter is connected with ion-exchanger, ion-exchanger is communicated with the first catcher, the first catcher is communicated with strainer, strainer is communicated with EDI water treating device, and EDI water treating device is communicated with the second catcher; De-mineralized water water inlet pipe is communicated with inner cold water flooding velocity meter, the second catcher; The second catcher is communicated with full-automatic micro-alkali device, and the exit end of the second catcher is communicated with inner cold water case; The utility model can regulate inner cold water to make it in slight alkalinity, can effectively suppress the corrosion of copper cash rod, safe, this external system adopts sodium type cation exchanger to remove hardness, copper, the iron in inner cold water, and without using anion exchanger, sodium type resin cation exchange capacity is large, exchange fully, life-span is long, and running cost is very low.
Description
Technical field
The utility model belongs to electrical engineering field, is specifically related to the two micro-alkali systems of cold water electrodeionization of a kind of generator.
Background technology
The feature of double water innercooling electric generator: stator winding internal water cooling, rotor winding internal water cooling, iron core air cooling.Advantage is that rotor winding temperature is low, and insulation life is long; No hydrogen, without the quick-fried problem of hydrogen; There is no hydrogen system and sealing oil system, outer secondary auxiliary system is simple; Install, move, safeguard and overhaul conveniently, running cost is low; Save material, reduce manufacturing cost; Stator is lightweight, is convenient to overland transportation; Shortcoming is that the etching problem of double-water internal cooling existence is very serious.
Large-scale double water innercooling electric generator rotor Inlet and outlet water mode is " centre hole water inlet, water tank water outlet ".Between water tank and rotor, have water gear tightness system, due to the impact of rotor high-speed running and rotor spindle shake, the copper tooth of water gear tightness system can serious wear.Generator water outlet pipeline section is negative pressure operation, can cause like this large quantity of air to keep off tightness system by water and be inhaled in inner cold water.Airborne CO
2dissolve in a large number and participated in the circulation of inner cold water along with swashing current, thereby double water innercooling electric generator system general pH value is lower, corrosion of copper winding bar is serious.
Current domestic solution double-water internal cooling pH value is low, the serious way of corrosion of copper winding bar has following several: 1, ion-exchange-resin process+automatic alkali adding method, this mode can meet system water quality requirement substantially, but resin life is shorter, the two water unit resins of 300MW generally can only maintain half a year, and resin consumption is larger.2, method for dosing medicine and the supplementary water law of condensing, the general ammonification of condensed water, identical with directly adding alkaline solution method to inner cold water, all can improve inner cold water system pH value, but these two kinds of mode specific conductivity fluctuations are very large, pH value declines comparatively fast, and copper ion concentration exceeds standard.3, degassing method+ion-exchange-resin process, because the sealing of water gear is bad, degasifying effect is unsatisfactory, and generally can only maintain 3～6 months resin life.Therefore, also do not have good way can effectively solve the serious problem of corrosion of copper winding bar at present.
Summary of the invention
In order to overcome the shortcoming of traditional double water-cooled generator treatment of cooling water mode, the two micro-alkali systems of cold water electrodeionization of generator that the utility model provides that a kind of reasonable in design, working stability is reliable, running maintenance amount is low, water-quality guideline reaches GB and require, can effectively suppress the corrosion of copper cash rod for a long time.
The technical scheme that the utility model is realized above-mentioned purpose employing is on inner cold water bypass water inlet pipe, to be disposed with inner cold water bypass water intaking valve and inner cold water flooding velocity meter, exit end at inner cold water flooding velocity meter is connected with ion-exchanger, the outlet of ion-exchanger is communicated with the water-in of the first catcher by pipeline, the water outlet of the first catcher is communicated with the water-in of strainer by the ion-exchange outlet valve being arranged on ion-exchange water outlet main pipeline, be communicated with ion-exchange water outlet by-pass valve by being arranged on the other pipeline of ion-exchange water outlet, the water outlet of strainer is communicated with the fresh water water-in of EDI water treating device by the fresh water water intaking valve being arranged on fresh water water inlet pipe, be communicated with the dense water water-in of EDI water treating device by the dense water water intaking valve being arranged on dense water water inlet pipe, the fresh water water outlet of EDI water treating device is communicated with the inlet channel of the second catcher by the fresh water outlet valve being arranged on fresh water rising pipe, dense water water outlet is communicated with the inlet channel of the second catcher by the dense water outlet valve being arranged on dense water rising pipe, utmost point water water outlet is communicated with utmost point water wash water valve by utmost point water blow-off pipe, the dirty pipe of dense water rising pipe and concentrated water drainage is connected in parallel on the dense water water outlet of EDI water treating device, the dirty valve of concentrated water drainage that is arranged on the dirty pipe of concentrated water drainage is communicated with utmost point water wash water valve, de-mineralized water water inlet pipe is communicated with the inlet end of inner cold water flooding velocity meter, is communicated with the inlet channel of the second catcher by de-mineralized water water compensating valve by de-mineralized water water intaking valve, the inlet channel of the second catcher is also communicated with the exit end of full-automatic micro-alkali device and the ion-exchange water outlet by-pass valve being arranged on the other pipeline of ion-exchange water outlet, and the exit end of the second catcher is communicated with inner cold water case by the specific conductivity table and pH table, the micro-alkali system of electrodeionization discharge pressure table and the micro-alkali system of the electrodeionization water outlet main valve that are arranged on successively on inner cold water pipeline.
Be provided with fresh water inlet gage, dense water water-in at the fresh water water-in of above-mentioned EDI water treating device and arrange that dense water inlet gage, fresh water water outlet are provided with fresh water discharge pressure table, dense water water outlet is provided with dense water discharge pressure table, fresh water inlet gage than the high 0.035MPa of the force value of dense water inlet gage, fresh water discharge pressure table than the high 0.035MPa of force value of dense water discharge pressure table.
The two micro-alkali systems of cold water electrodeionization of generator that the utility model provides, it is designed primarily to the bypass treatment system of electric generator inner cooling water, in bypass treatment system, utilize sodium type cation exchanger to remove the copper in inner cold water, iron, hardness, utilize strainer to remove suspended substance and impurity particle, EDI water treating device moves ionization property zwitterion under the effect of electric field, utilize multichannel water to mix (fresh water water outlet, most of dense water water outlet, ion-exchanger bypass water outlet, de-mineralized water moisturizing adds alkali again and mixes after mixing) carry out the index of the two micro-alkali system of the cold water electrodeionization water outlets of regulator generator, also utilize full-automatic micro-alkali device to the two micro-alkali system of the cold water electrodeionization water outlets interpolation of generator dilution alkali lye simultaneously, to improve the pH value of water outlet, thereby regulate inner cold water in slight alkalinity, can effectively suppress the corrosion of copper cash rod, safe, this external system adopts sodium type cation exchanger to remove the hardness in inner cold water, copper, iron, and without using anion exchanger, sodium type resin cation exchange capacity is large, exchange fully, life-span is long, running cost is very low, the utility model also can be suitable for any double water innercooling electric generator group, range of application is wider.
Brief description of the drawings
Fig. 1 is example structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but the utility model is not limited to following embodiment.
As shown in Figure 1, the two micro-alkali systems of cold water electrodeionization of generator of the present embodiment are mainly by inner cold water bypass water intaking valve 1, de-mineralized water water intaking valve 2, inner cold water flooding velocity meter 3, inner cold water inlet gage 4, ion-exchanger 5, strainer 6, EDI water treating device 7, ion-exchange water outlet by-pass valve 8, dense water outlet valve 23, fresh water discharge pressure table 9, dense water discharge pressure table 10, fresh water outlet valve 11, de-mineralized water water compensating valve 12, fresh water water flow meter 13, dense water water flow meter 14, the second catcher 15, specific conductivity table and pH table 16, the micro-alkali system of electrodeionization discharge pressure table 17, the micro-alkali system of electrodeionization water outlet main valve 18, full-automatic micro-alkali device 19, the dirty under meter 20 of concentrated water drainage, the dirty valve 21 of concentrated water drainage, utmost point water water flow meter 22, dense water outlet valve 23, utmost point water wash water valve 24, fresh water inlet gage 25, dense water inlet gage 26, fresh water water intaking valve 27, dense water water intaking valve 28, ion-exchange outlet valve 29 and the first catcher 30 form.
Inner cold water bypass water intaking valve 1 is installed successively on inner cold water bypass water inlet pipe, inner cold water flooding velocity meter 3 and inner cold water inlet gage 4, the water outlet port of inner cold water flooding velocity meter 3 is communicated with the water inlet port of ion-exchanger 5, the flow of controlling inner cold water water inlet is 3～5t/h, the ion-exchanger 5 of the present embodiment is to adopt commercially available sodium type cation exchanger 5, by contained hardness in water, copper, the corrosion products such as iron and granule foreign exchange, adsorb and hold back, in order to ensure pressure equilibrium and the water distribution uniformity in ion-exchanger 5, top at ion-exchanger 5 is provided with exhaust-valve.On the water outlet port of ion-exchanger 5 downsides, be connected with the first catcher 30, this first catcher 30 is the resin type catchers that adopt 316L stainless steel wrap wire filter core, water outlet at the first catcher 30 is divided into two-way, the ion-exchange outlet valve 29 being arranged on ion-exchange water outlet main pipeline of wherein leading up to is communicated with the water-in of strainer 6, separately leads up to be arranged on ion-exchange water outlet by-pass valve 8 on the other pipeline of ion-exchange water outlet and to be communicated with the inlet channel of the second catcher 15.The strainer 6 of the present embodiment is to adopt commercially available cartridge filter 6, on the exit end of this strainer 6, be connected with EDI water treating device 7, specifically the water outlet of this strainer 6 is divided into two branch roads, one is fresh water suction culvert, another is dense water suction culvert, the water outlet of strainer 6 is communicated with the fresh water water-in of EDI water treating device 7 by the fresh water water intaking valve 27 being arranged on fresh water water inlet pipe, be communicated with the dense water water-in of EDI water treating device 7 by the dense water water intaking valve 28 being arranged on dense water water inlet pipe, in order to control the intake pressure of dense water and fresh water, fresh water inlet gage 25 is also installed on fresh water water-in, dense water inlet gage 26 is installed on dense water water-in.The EDI water treating device 7 of the present embodiment can move ionization property zwitterion under the effect of electric field, controls the ionic concn of water outlet, thereby controls the specific conductivity of inner cold water system.Fresh water discharge pressure table 9 is installed on the fresh water water outlet of this EDI water treating device 7 successively, fresh water outlet valve 11 and fresh water water flow meter 13, by fresh water rising pipe, fresh water is sent, same utmost point water wash water valve 24 and the utmost point water water flow meter 22 of being provided with on utmost point water water outlet, by utmost point water rising pipe, utmost point water is discharged, in order to regulate the specific conductivity of inner cold water, effectively utilize dense water, the dense water water outlet of the present embodiment is divided into two portions, a part emits after mixing with the water outlet of utmost point water by the dirty pipe of concentrated water drainage, another part is by being arranged on successively the dense water discharge pressure table 10 on dense water rising pipe, dense water outlet valve 23 and dense water water flow meter 14 are communicated with fresh water rising pipe, the dirty Guan Yunong water of concentrated water drainage rising pipe is installed in parallel on dense water water outlet.For the ease of controlling flow, the dirty valve 21 of concentrated water drainage and the dirty under meter 20 of concentrated water drainage are also installed on the dirty pipe of concentrated water drainage, i.e. pipeline communication is passed through in the dirty outlet of under meter 20 of concentrated water drainage and the outlet of utmost point water water flow meter 22.Be communicated with the inlet channel of the second catcher 15 through fresh water rising pipe through EDI water treating device 7 fresh water after treatment, fresh water after treatment and the dense water of part are delivered to the second catcher 15 through fresh water rising pipe, second catcher 15 of the present embodiment is also to adopt 316L stainless steel wrap wire filter core resin type catcher, the water outlet of this second catcher 15 is communicated with inner cold water water tank by the micro-alkali system of electrodeionization water outlet main valve 18, in order to control the water-quality guideline of the inner cold water that enters inner cold water water tank, on the micro-alkali system of electrodeionization outlet conduit, specific conductivity table and pH table 16 are installed successively, the micro-alkali system of electrodeionization discharge pressure table 17.
In order to realize the pH value that regulates inner cold water, make it in slight alkalinity, the present embodiment is also connected with full-automatic micro-alkali device 19 on the inlet channel of the second catcher 15, full-automatic micro-alkali device 19 of the present embodiment be adopt common commercially available formed by PID controller and rly., micro electromagnetic volume pump, molten medicine-chest etc. can be according to specific conductivity size in water outlet, automatically control micro-alkali device of chemical feeding quantity.The water outlet port of this full-automatic micro-alkali device 19 is communicated with the inlet channel of the second catcher 15 by pipeline, in the inlet channel of the second catcher 15, mix with the mixing water of fresh water, dense water etc., catch through the second catcher 15 again, guarantee the resin inner cold water water tank that can not bleed, ensure unit operation safety.
Above-mentioned inner cold water bypass water inlet pipe is also provided with de-mineralized water water inlet pipe outward, de-mineralized water one tunnel of carrying in the de-mineralized water water inlet pipe of the present embodiment is controlled and is entered in ion-exchanger 5 through de-mineralized water water intaking valve 2, be communicated with the water-in of ion-exchanger 5, as wash water; Another road is controlled and is communicated with the inlet channel of the second catcher 15 through de-mineralized water water compensating valve 12, importing second inlet channel of catcher 15 and the mixing water of fresh water, dense water etc. mixes, its flow is equal to the summation that the dirty amount of concentrated water drainage adds utmost point water blowdown flow rate, with the loss of replenishment system blowdown.
The present embodiment in use, the fresh water of EDI water treating device 7 and the Inlet and outlet water of dense water will maintain certain pressure reduction, fresh water inlet gage 25 than dense water inlet gage 26 be worth high 0.035MPa, fresh water discharge pressure table 9 is worth high 0.035Mpa than dense water discharge pressure table 10.
The present embodiment in use, from the water of electric generator inner cooling water system bypass, through inner cold water bypass water intaking valve 1, inner cold water flooding velocity meter 3 enters in ion-exchanger 5, contained hardness in water, copper, the corrosion products such as iron and granule foreign are by sodium type resin cation exchange, adsorb and hold back, again through the first catcher 30, ion-exchange outlet valve 29 enters strainer 6, after secondary filter, water quality reaches the water inlet requirement of EDI water treating device 7, divide two-way through fresh water water intaking valve 27, dense water water intaking valve 28 enters in EDI water treating device 7, under the effect of electric field, the ion exchange resin carrier absorption of water intermediate ion state material in EDI water treating device 7, again through anion and cation exchange membrane selective migration, most of zwitterion is migrated to dense hydroecium, the fresh water being removed after ion flows out through fresh water water outlet, fresh water aquifer yield is controlled at 2.5～3t/h, through fresh water outlet valve 11, after flowing out, fresh water water flow meter 13 enters the inlet channel of the second catcher 15, EDI water treating device 7 dense water after treatment goes out moisture two-way, one tunnel is through dense water outlet valve 23, dense water water flow meter 14 imports in fresh water rising pipe and mixing of fresh water, discharge through the dirty valve 21 of concentrated water drainage and the dirty under meter 20 of concentrated water drainage on one tunnel, the dirty amount of concentrated water drainage regulates according to the specific conductivity of inner cold water system.Utmost point water is discharged by utmost point water wash water valve 24 and utmost point water water flow meter 22, and utmost point water quantity discharged is 0.08t/h.The water outlet of ion-exchanger 5 is after the first catcher 30 flows out, separately there is a roadside flowing water to import in the inlet channel of the second catcher 15 through ion-exchange water outlet by-pass valve 8, de-mineralized water water one tunnel enters ion-exchanger 5 as wash water through de-mineralized water water intaking valve 2, one tunnel imports in the inlet channel of the second catcher 15 through de-mineralized water water compensating valve 12, its flow is equal to the summation that the dirty amount of concentrated water drainage adds utmost point water blowdown flow rate, lose with replenishment system blowdown, multichannel mixing water (fresh water, most of dense water, ion-exchanger 5 bypass water outlets, de-mineralized water moisturizing mixes) after adding Microdilution alkali lye, full-automatic micro-alkali device 19 is mixed in inner cold water case.
Claims (2)
1. the two micro-alkali systems of cold water electrodeionization of generator, it is characterized in that: on inner cold water bypass water inlet pipe, be disposed with inner cold water bypass water intaking valve (1) and inner cold water flooding velocity meter (3), be connected with ion-exchanger (5) at the exit end of inner cold water flooding velocity meter (3), the outlet of ion-exchanger (5) is communicated with the water-in of the first catcher (30) by pipeline, the water outlet of the first catcher (30) is communicated with the water-in of strainer (6) by the ion-exchange outlet valve (29) being arranged on ion-exchange water outlet main pipeline, be communicated with ion-exchange water outlet by-pass valve (8) by being arranged on the other pipeline of ion-exchange water outlet, the water outlet of strainer (6) is communicated with the fresh water water-in of EDI water treating device (7) by the fresh water water intaking valve (27) being arranged on fresh water water inlet pipe, be communicated with the dense water water-in of EDI water treating device (7) by the dense water water intaking valve (28) being arranged on dense water water inlet pipe, the fresh water water outlet of EDI water treating device (7) is communicated with the inlet channel of the second catcher (15) by the fresh water outlet valve (11) being arranged on fresh water rising pipe, dense water water outlet is communicated with the inlet channel of the second catcher (15) by the dense water outlet valve (23) being arranged on dense water rising pipe, utmost point water water outlet is communicated with utmost point water wash water valve (24) by utmost point water blow-off pipe, the dirty pipe of dense water rising pipe and concentrated water drainage is connected in parallel on the dense water water outlet of EDI water treating device (7), the dirty valve of concentrated water drainage (21) that is arranged on the dirty pipe of concentrated water drainage is communicated with utmost point water wash water valve (24), de-mineralized water water inlet pipe is communicated with the inlet end of inner cold water flooding velocity meter (3), is communicated with the inlet channel of the second catcher (15) by de-mineralized water water compensating valve (12) by de-mineralized water water intaking valve (2), the inlet channel of the second catcher (15) is also communicated with the exit end of full-automatic micro-alkali device (19) and the ion-exchange water outlet by-pass valve (8) being arranged on the other pipeline of ion-exchange water outlet, and the exit end of the second catcher (15) is communicated with inner cold water case by the specific conductivity table and pH table (16), the micro-alkali system of electrodeionization discharge pressure table (17) and the micro-alkali system of the electrodeionization water outlet main valve (18) that are arranged on successively on inner cold water pipeline.
2. the two micro-alkali systems of cold water electrodeionization of generator according to claim 1, it is characterized in that: be provided with fresh water inlet gage (25) at the fresh water water-in of EDI water treating device (7), dense water water-in arranges dense water inlet gage (26), fresh water water outlet is provided with fresh water discharge pressure table (9), dense water water outlet is provided with dense water discharge pressure table (10), fresh water inlet gage (25) is than the high 0.035MPa of force value of dense water inlet gage (26), fresh water discharge pressure table (9) is than the high 0.035MPa of force value of dense water discharge pressure table (10).
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| CN201420342877.4U CN203922906U (en) | 2014-06-25 | 2014-06-25 | The two micro-alkali systems of cold water electrodeionization of a kind of generator |
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| CN201420342877.4U CN203922906U (en) | 2014-06-25 | 2014-06-25 | The two micro-alkali systems of cold water electrodeionization of a kind of generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223129A (en) * | 2015-10-12 | 2016-01-06 | 西南石油大学 | Solution chemistry automaton in a kind of iron and alloy corrosion process thereof and using method thereof |
| CN105948330A (en) * | 2016-06-17 | 2016-09-21 | 吕世杰 | Membrane purification and alkalization control processing device for generator internal cooling water |
| CN110818146A (en) * | 2019-10-31 | 2020-02-21 | 上海电气电站设备有限公司 | Double-water internal cooling motor rotor cooling water quality control device |
| CN111977851A (en) * | 2020-09-11 | 2020-11-24 | 哈尔滨安泰利达科技开发有限公司 | Nuclear power generator inner cooling water treatment facilities |
| CN112960804A (en) * | 2021-02-22 | 2021-06-15 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Generator inner cooling water bypass treatment device and control method |
-
2014
- 2014-06-25 CN CN201420342877.4U patent/CN203922906U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223129A (en) * | 2015-10-12 | 2016-01-06 | 西南石油大学 | Solution chemistry automaton in a kind of iron and alloy corrosion process thereof and using method thereof |
| CN105948330A (en) * | 2016-06-17 | 2016-09-21 | 吕世杰 | Membrane purification and alkalization control processing device for generator internal cooling water |
| CN105948330B (en) * | 2016-06-17 | 2018-12-18 | 吕世杰 | Electric generator inner cooling moisture film Purification of alkaliization controls processing unit |
| CN110818146A (en) * | 2019-10-31 | 2020-02-21 | 上海电气电站设备有限公司 | Double-water internal cooling motor rotor cooling water quality control device |
| CN111977851A (en) * | 2020-09-11 | 2020-11-24 | 哈尔滨安泰利达科技开发有限公司 | Nuclear power generator inner cooling water treatment facilities |
| CN112960804A (en) * | 2021-02-22 | 2021-06-15 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Generator inner cooling water bypass treatment device and control method |
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