CN2852509Y - Combined circulating device for hydro-turbo generator stator evaporating and cooling - Google Patents
Combined circulating device for hydro-turbo generator stator evaporating and cooling Download PDFInfo
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- CN2852509Y CN2852509Y CN 200520036095 CN200520036095U CN2852509Y CN 2852509 Y CN2852509 Y CN 2852509Y CN 200520036095 CN200520036095 CN 200520036095 CN 200520036095 U CN200520036095 U CN 200520036095U CN 2852509 Y CN2852509 Y CN 2852509Y
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Abstract
The utility model discloses a combined circulating device for stator evaporating and cooling of a hydro-turbo generator, which comprises a stator winding heating body dipped with evaporating mediums, a condenser system forming heat exchange with cooling medium steam, and a stator slip ring heating body dipped with evaporating mediums, wherein one end of the stator winding heating body is connected with the bottom of a condenser through a first liquid collection pipe and a first liquid-returning pipe, and the other end is communicated with a first total steam collection pipe; the first total steam collection pipe is communicated with the upper part of the condenser then through a first steam collection pipe. One end of the stator slip ring heating body is communicated with the bottom of the condenser through a second liquid collection pipe and a second liquid-returning pipe, and the other end is communicated with a second total steam collection pipe; the second total steam collection pipe is communicated with the upper part of the condenser through a second steam collection pipe. The utility model has the advantages of simple structure and space saving; the temperature of a stator winding and a slip ring can be made to be more evenly distributed in the axial and the circumferential directions.
Description
Technical field
The utility model relates to the cooling device of hydraulic generator stator, particularly a kind of evaporation cooling combined cycle device of hydraulic generator stator.
Background technology
Along with improving constantly of hydraulic generator single-machine capacity, the heat load of motor also significantly increases, and the winding that causes therefrom, the temperature rise of collector ring, the temperature difference are all in aggravation.Therefore, reducing motor windings, collector ring temperature rise and improve the uniformity of Temperature Distribution, is vital to the reliability service of high-rating generator.
Hydraulic generator stator internal water cooling technology, year is historical surplus in the of existing 40 in the world, the problems referred to above are readily solved, but this technology has increased pump circulation pure water supply and deionization system, and leakage and oxide stop up the also aggravation at the same time of unreliability risk that the possibility that causes the accident etc. is brought.
Evaporative cooling not only can improve stock utilization as a kind of novel inner cold technology of hydraulic generator, reduces super-huge generator and makes difficulty, reduces operation temperature rise and the temperature difference and the generator unit stator thermal stress of generator unit stator winding, collector ring.The more important thing is: evaporative cooling has better superiority than internal water cooling.At first,, do not need other water treatment facilities, do not take the factory building arrangement areas because evaporative cooling adopts self-circulation system; Another outstanding superiority is to have eliminated because leakage and oxide stop up the possibility that causes the accident; even coolant takes place to be revealed; can not produce major break down yet; can adopt the load down operation; allow its generator air cooling operation or few medium evaporative cooling move; maintenance again after waiting to shut down, this is that water inner cold motor is unrivaled.But traditional generator evaporation cooling technique has only solved the cooling of stator winding heater, stator collector ring heater still adopts the air cooling mode, as the stator winding and the collector ring combined cycle power plant that adopt evaporation cooling technique, not only on stator collector ring heater, adopted evaporation cooling technique, and both are organically united, form combined cycle.
Summary of the invention
The purpose of this utility model is to provide a kind of evaporation cooling combined cycle device of hydraulic generator stator, make full use of the evaporative cooling characteristics of stator winding and collector ring, two cover cooling systems are inserted the self-loopa operation that same set of condenser system is realized evaporative medium.
A kind of evaporation cooling combined cycle device of hydraulic generator stator, comprise stator winding heater that is soaked with evaporative medium and the condenser system that carries out heat exchange with coolant steam, it is characterized in that: also comprise the stator collector ring heater that is soaked with evaporative medium, one end of described stator winding heater is communicated with the condenser bottom by first total collector tube, first liquid back pipe, its other end is communicated with first total steam collector, and first total steam collector is communicated with the top of condenser by first steam collector again; One end of described stator collector ring heater is communicated with the condenser bottom by second total collector tube, second liquid back pipe, and its other end is communicated with second total steam collector, and second total steam collector is communicated with the top of condenser by second steam collector again.
Described condenser system comprises two or more condensers, and is provided with the grading ring pipe that each condenser is interconnected between condenser.
Described stator winding heater is vertical structure, and described stator collector ring heater is horizontal type structure.
Described first, second liquid back pipe is set to the height liquid back pipe, and second liquid back pipe bottom is higher than first liquid back pipe bottom, and the top of second liquid back pipe is lower than the top of first liquid back pipe.
Described second total collector tube is lower than the collector ring bottom.
Described first, second total collector tube and first, second total steam collector all can be arranged to the circulus concentric with stator circumference.
The utility model makes full use of the evaporative cooling characteristics of stator winding and collector ring, and two cover cooling systems are inserted the self-loopa operation that same set of condenser is realized evaporative medium.After adopting this device, simple in structure, circulation is reliable, conserve space, and with low cost.Because the stator winding heater is a vertical structure, just can realize the self-loopa operation under the condition of certain liquid level guaranteeing that evaporative medium has, and collector ring is a horizontal positioned, its inside must be soaked entirely at evaporative medium could realize the self-loopa operation under the condition, adopt the combined cycle mode just must satisfy above two conditions simultaneously.Condenser has adopted two liquid back pipes of height simultaneously, high liquid back pipe is used for the stator winding evaporative cooling system, low liquid back pipe is used for the collector ring evaporative cooling system, because the liquid back pipe of collector ring evaporative cooling system is low, evaporative medium in the condenser is always preferentially supplied with collector ring, after collector ring is filled, resupply the stator winding evaporative cooling system, so just satisfied the demand of two cover systems simultaneously, and when operation, no matter how the liquid level of stator winding changes, and collector ring also always is in the state that soaks entirely.Condenser system is provided with the grading ring pipe, make between each condenser and be interconnected, the pressure of realizing whole evaporative cooling system is even, make the cooling parallel branch operation conditions of stator and collector ring correspondence consistent, the heat that each condenser is taken away is more even, and Temperature Distribution is more even vertically and circumferentially promptly to have guaranteed the generator unit stator winding.
Therefore, the utlity model has following advantage: 1, adopt the combined cycle mode, solved vertical stator winding heater and the evaporative cooling problem that is horizontal two kinds of different arrangement parts of stator collector ring heater; 2, condenser is arranged the height liquid back pipe, guarantees the transpiration-cooled self-loopa operation of two covers; 3, collector tube is set, has realized being the stator collector ring heater evaporative cooling self-circulation system of horizontal layout; 4, the grading ring pipe of arranging on condenser system makes between each condenser to be interconnected.The pressure of realizing whole evaporation combined cycle system is even, make the stator winding heater consistent with the cooling parallel branch operation conditions of stator collector ring heater correspondence, the heat that each condenser is taken away is more even, and Temperature Distribution is more even vertically and circumferentially promptly to have guaranteed generator unit stator winding, collector ring.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model
Embodiment
As shown in Figure 1, evaporation cooling combined cycle device of hydraulic generator stator is arranged on the hydraulic generator stator, circumference is arranged a plurality of condensers 11 according to the structure needs, each condenser 11 bottom is provided with two pipelines, evaporative medium in the condenser 11 passes through a pipeline wherein, and promptly first liquid back pipe 3 enters first total collector tube 4, enter stator winding heater 1, first total steam collector 5, first steam collector 6 again, get back to condenser 11 at last; Evaporative medium in the condenser 11 passes through another root pipeline wherein, and promptly second liquid back pipe 7 enters second total collector tube 8, enters stator collector ring heater 2, second total steam collector 9, second steam collector 10 again, gets back to condenser 11 at last.
The hydraulic generator stator evaporation cooling circulation unit is arranged on the hydraulic generator stator, can carry out evaporative cooling to stator collector ring heater 2 separately, the circumference of stator is provided with a plurality of condensers 11 according to the structure needs, each condenser 11 bottom is provided with one second liquid back pipe 7, the top of each condenser 11 is provided with one second steam collector 9, evaporative medium just enters second liquid back pipe 7 successively from condenser 11, second total steam collector 8, stator collector ring heater 2, second total steam collector 9, second steam collector 10, return condenser 11 at last, formed the evaporative cooling self-circulation system of collector ring.
Because stator winding heater 1 be vertical structure, stator collector ring heater 2 is a horizontal positioned, just can realize that self-loopa moves guaranteeing that evaporative medium has under the condition of certain liquid level.Second liquid back pipe, 7 bottoms are higher than first liquid back pipe, 3 bottoms simultaneously, second liquid back pipe, 7 tops are lower than the top of first liquid back pipe 3, first liquid back pipe 3 uses for the stator winding evaporating, cooling and circulating system, second liquid back pipe 7 uses for stator collector ring evaporating, cooling and circulating system, because the liquid back pipe of stator collector ring evaporating, cooling and circulating system is low, evaporative medium in the condenser is always preferentially supplied with stator collector ring heater 2, after collector ring is filled, resupplies the stator winding evaporative cooling system.
Condenser system is provided with grading ring pipe 12, makes between each condenser 11 to be interconnected, and realizes that the pressure of whole evaporative cooling system is even, makes the cooling parallel branch operation conditions of stator and collector ring correspondence consistent, and the heat that each condenser 11 is taken away is more even.
Claims (5)
1, a kind of evaporation cooling combined cycle device of hydraulic generator stator, comprise stator winding heater (1) that is soaked with evaporative medium and the condenser system that carries out heat exchange with coolant steam, it is characterized in that: also comprise the stator collector ring heater (2) that is soaked with evaporative medium, one end of described stator winding heater (1) is by first total collector tube (4), first liquid back pipe (3) is connected with condenser (11) bottom, its other end is communicated with first total steam collector (5), and first total steam collector (5) is communicated with the top of condenser (11) by first steam collector (6) again; One end of described stator collector ring heater (2) is communicated with condenser (11) bottom by second total collector tube (8), second liquid back pipe (7), its other end is communicated with second total steam collector (9), and second total steam collector (9) is communicated with the top of condenser (11) by second steam collector (10) again.
2, a kind of evaporation cooling combined cycle device of hydraulic generator stator according to claim 1, it is characterized in that: described condenser system comprises two or more condensers (11), and is provided with the grading ring pipe (12) that each condenser (11) is interconnected between condenser (11).
3, a kind of evaporation cooling combined cycle device of hydraulic generator stator according to claim 1 is characterized in that: described stator winding heater (1) is vertical structure, and described stator collector ring heater (2) is horizontal type structure.
4, a kind of evaporation cooling combined cycle device of hydraulic generator stator according to claim 1, it is characterized in that: described first, second liquid back pipe is set to the height liquid back pipe, second liquid back pipe (8) bottom is higher than first liquid back pipe (4) bottom, and second liquid back pipe (8) top is lower than the top of first liquid back pipe (3).
5, a kind of evaporation cooling combined cycle device of hydraulic generator stator according to claim 1 is characterized in that: described second total collector tube (7) is positioned at stator collector ring heater (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036095 CN2852509Y (en) | 2005-11-15 | 2005-11-15 | Combined circulating device for hydro-turbo generator stator evaporating and cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036095 CN2852509Y (en) | 2005-11-15 | 2005-11-15 | Combined circulating device for hydro-turbo generator stator evaporating and cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852509Y true CN2852509Y (en) | 2006-12-27 |
Family
ID=37586465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520036095 Expired - Lifetime CN2852509Y (en) | 2005-11-15 | 2005-11-15 | Combined circulating device for hydro-turbo generator stator evaporating and cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852509Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967978B (en) * | 2005-11-15 | 2010-09-29 | 东方电机股份有限公司 | Evaporation cooling combined cycle device of hydraulic generator stator |
| CN102035307A (en) * | 2010-12-29 | 2011-04-27 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
| CN102969838A (en) * | 2012-10-31 | 2013-03-13 | 中国科学院电工研究所 | Forced circulation evaporation cooling device of hydro-generator stator busbar |
| CN104009588A (en) * | 2014-06-18 | 2014-08-27 | 东方电气集团东方电机有限公司 | Evaporative cooling system for vertical shaft motor |
-
2005
- 2005-11-15 CN CN 200520036095 patent/CN2852509Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967978B (en) * | 2005-11-15 | 2010-09-29 | 东方电机股份有限公司 | Evaporation cooling combined cycle device of hydraulic generator stator |
| CN102035307A (en) * | 2010-12-29 | 2011-04-27 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
| CN102035307B (en) * | 2010-12-29 | 2012-07-04 | 哈尔滨电机厂有限责任公司 | Evaporative cooling system for water-wheel generator with master-slave condenser |
| CN102969838A (en) * | 2012-10-31 | 2013-03-13 | 中国科学院电工研究所 | Forced circulation evaporation cooling device of hydro-generator stator busbar |
| CN104009588A (en) * | 2014-06-18 | 2014-08-27 | 东方电气集团东方电机有限公司 | Evaporative cooling system for vertical shaft motor |
| CN104009588B (en) * | 2014-06-18 | 2016-07-13 | 东方电气集团东方电机有限公司 | Vertical shaft motor evaporative cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFANG ELECTRIC GROUP DONGFANG ELECTRIC MACHINE Free format text: FORMER OWNER: DONGFANG ELECTRICAL MACHINE CO., LTD. Effective date: 20100108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100108 Address after: No 188, the Yellow River West Road, Deyang, Sichuan Province, 618000 Patentee after: Dongfang Electric Group Dongfang Motor Co., Ltd. Address before: No 188, the Yellow River West Road, Deyang, Sichuan Province, 618000 Patentee before: Dongfang Electric Machine Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20061227 Effective date of abandoning: 20100929 |