CN201207586Y - Stator core ventilation device for air cooling turbine generator - Google Patents
Stator core ventilation device for air cooling turbine generator Download PDFInfo
- Publication number
- CN201207586Y CN201207586Y CNU2008200586658U CN200820058665U CN201207586Y CN 201207586 Y CN201207586 Y CN 201207586Y CN U2008200586658 U CNU2008200586658 U CN U2008200586658U CN 200820058665 U CN200820058665 U CN 200820058665U CN 201207586 Y CN201207586 Y CN 201207586Y
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- CN
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- Prior art keywords
- air channel
- duct
- core
- air
- channel plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to a stator core ventilation device for an air-cooled turbogenerator which is uniformly provided with 18 sector structures with a central angle being of 20 DEG along circumference. A duct enclosed by a first duct plate and a second duct plate which are arranged between a core yoke part and a core tooth part near a support reinforcement as well as a duct enclosed by a fifth duct plate and a sixth duct plate are arranged at two sides of each sector structure. The utility model is characterized in that a seventh duct plate is arranged in the middle of an original position of a third duct plate and a forth duct plate in the middle of the sector. The utility model has the advantages that the occurrence of a local hot spot is efficiently avoided by that wind quantity distribution of a core duct corresponds to the cooling requirement, and the manufacture cost is lowered.
Description
Technical field
The utility model relates to a kind of air-cooled steam turbine generator stator core ventilation device, is used for 125MW, 135MW and 180MW generating set, and the ventilation cooling structure that belongs to the air cooled generator group is optimized the field.
Background technology
As shown in Figure 1, be former air-cooled steam turbine generator stator core ventilation device partial structurtes schematic diagram, this sector structure is the part of stator core ventilation unit, and central angle is 20 °, has 18 along circumference, evenly arrange, thereby constitute a complete stator core ventilation unit, the direction of arrow is the trend of cooling blast among the figure, and the space between the plate of adjacent air channel is the refrigerating gas air channel, refrigerating gas need be taken away rear of core 3, the heat that core tooth part 5 and stator coil 7 are distributed.
Summary of the invention
The purpose of this utility model provides a kind of air quantity and conforms with the heat radiation requirement, avoids occurring hot localised points, improves the fail safe of generator operation, and can reduce the air-cooled steam turbine generator stator core ventilation device of manufacturing cost.
For realizing above purpose, the technical solution of the utility model provides a kind of air-cooled steam turbine generator stator core ventilation device, evenly being provided with 18, central angle along circumference is 20 ° sector structure, each sector structure all is made up of the air channel that surrounds near the first air channel plate of brace rod and air channel that the second air channel plate surrounds and tendencies guidance tape and the 6th air channel plate between the rear of core of being located at both sides and the core tooth part, it is characterized in that, be provided with the 7th air channel plate in fan-shaped centre in the middle of the position of original the 3rd air channel plate and the 4th air channel plate.
The 3rd air channel plate 8 and the 4th air channel plate 9 that the utility model will surround air channel 4 are reduced to an air channel plate, just reduced by 18 air channel plates on such circumference, the fresh flue plate is positioned in the middle of the position of original two the 3rd air channel plates 8 and the 4th air channel plate 9, so just avoided the shortcoming of original structure, thereby assignment of traffic and heat dissipation capacity are complementary, also can save certain manufacturing cost simultaneously.
The utility model has the advantages that:
1. the air quantity distribution by core duct conforms with the heat radiation requirement, according to how many reasonable distribution air quantity of heat dissipation capacity;
2. avoided the appearance of hot localised points effectively;
3. reduced manufacturing cost.
Description of drawings
Fig. 1 is former air-cooled steam turbine generator stator core ventilation device partial structurtes schematic diagram;
Fig. 2 is a kind of air-cooled steam turbine generator stator core ventilation of the utility model device partial structurtes schematic diagrames.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 2, be a kind of air-cooled steam turbine generator stator core ventilation of the utility model device partial structurtes schematic diagram, described a kind of air-cooled steam turbine generator stator core ventilation device, evenly be provided with 18 along circumference, central angle is 20 ° a sector structure 16, each sector structure 16 all is made up of the air channel 15 that surrounds near the first air channel plate 10 of brace rod 1 and air channel 12 that the second air channel plate 11 surrounds and tendencies guidance tape 13 and the 6th air channel plate 14 between the rear of core 3 of being located at both sides and the core tooth part 5, be provided with the 7th air channel plate 2, the seven air channel plates 2 and the 6th air channel plate 14 composition air channels 6 in the middle of the position of original the 3rd air channel plate 8 and the 4th air channel plate 9 in fan-shaped centre.
Refrigerating gas by the heat taken away in the air channel 6 from three parts, i.e. rear of core, core tooth part and stator coil.Analyze as can be known according to Hydrodynamics Theory knowledge and CFD (Computational Fluid Dynamics), windage in the air channel 6 can be greater than the windage in the air channel 4, make the air quantity of the two mate with the heat of taking away, therefore be difficult in air channel 6, producing focus, make uniformity of temperature profile, thereby reach the safe operation of generator.
Claims (1)
1. air-cooled steam turbine generator stator core ventilation device, evenly being provided with 18, central angle along circumference is 20
0Sector structure (16), each sector structure (16) all has between the rear of core (3) of being located at both sides and the core tooth part (5) air channel (15) composition that surrounds near the first air channel plate (10) of brace rod (1) and air channel (12) that the second air channel plate (11) surrounds and tendencies guidance tape (13) and the 6th air channel plate (14), it is characterized in that, be provided with the 7th air channel plate (2) in fan-shaped centre in the middle of the position of original the 3rd air channel plate (8) and the 4th air channel plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586658U CN201207586Y (en) | 2008-05-20 | 2008-05-20 | Stator core ventilation device for air cooling turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586658U CN201207586Y (en) | 2008-05-20 | 2008-05-20 | Stator core ventilation device for air cooling turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207586Y true CN201207586Y (en) | 2009-03-11 |
Family
ID=40466642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200586658U Expired - Lifetime CN201207586Y (en) | 2008-05-20 | 2008-05-20 | Stator core ventilation device for air cooling turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207586Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064636A (en) * | 2011-01-12 | 2011-05-18 | 哈尔滨理工大学 | Steam turbine generator with stator multiloop reciprocating ventilation system |
| CN106329761A (en) * | 2016-08-30 | 2017-01-11 | 江苏微特利电机股份有限公司 | Double-channel-steel stator ventilation structure for motor |
| CN111324974A (en) * | 2020-03-24 | 2020-06-23 | 北京交通大学 | Optimization method and device of air-cooled generator based on stator tooth internal cooling ventilation structure |
-
2008
- 2008-05-20 CN CNU2008200586658U patent/CN201207586Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064636A (en) * | 2011-01-12 | 2011-05-18 | 哈尔滨理工大学 | Steam turbine generator with stator multiloop reciprocating ventilation system |
| CN102064636B (en) * | 2011-01-12 | 2012-07-25 | 哈尔滨理工大学 | Steam turbine generator with stator multiloop reciprocating ventilation system |
| CN106329761A (en) * | 2016-08-30 | 2017-01-11 | 江苏微特利电机股份有限公司 | Double-channel-steel stator ventilation structure for motor |
| CN111324974A (en) * | 2020-03-24 | 2020-06-23 | 北京交通大学 | Optimization method and device of air-cooled generator based on stator tooth internal cooling ventilation structure |
| CN111324974B (en) * | 2020-03-24 | 2022-10-21 | 北京交通大学 | Optimization method and device of air-cooled generator based on stator tooth internal cooling ventilation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090311 |