CN2917069Y - Concealed wind catcher structure of oblique air flow ventilation system for ventilation through air clearance of internally hydrogen cooled generator rotor - Google Patents
Concealed wind catcher structure of oblique air flow ventilation system for ventilation through air clearance of internally hydrogen cooled generator rotor Download PDFInfo
- Publication number
- CN2917069Y CN2917069Y CN 200620042085 CN200620042085U CN2917069Y CN 2917069 Y CN2917069 Y CN 2917069Y CN 200620042085 CN200620042085 CN 200620042085 CN 200620042085 U CN200620042085 U CN 200620042085U CN 2917069 Y CN2917069 Y CN 2917069Y
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- rotor
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- slot wedge
- oblique flow
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Abstract
The utility model relates to a concealed wind catcher structure for air-gap diagonal-flow ventilating system for hydrogen inner-cooling generator rotor, which comprises a slot wedge, a rotor coil, a rotor and a coil diagonal flow channel. Wherein, the rotor coil is arranged in the rotor. The slot wedge is arranged on the external rotor surface. The flow channel thrills through the rotor coil. The utility model is characterized in that: An air inlet slot wedge and an air outlet slot wedge are provided for the rotor. The air inlet and outlet are respectively connected with two ends of the flow channel. Therefore, the utility model has the advantages of decreasing friction loss of turbine-generator rotor in operation, lowering generator operating noise and facilitating rotor withdrawal and assembling.
Description
Technical field
The utility model relates to the latent wind scoop structure that a kind of hydrogen inner-cooling generator rotor airgap is got gas oblique flow ventilating system, relates in particular to a kind of structure that passes in and out the wind wind scoop that a kind of hydrogen inner-cooling generator rotor airgap is got gas oblique flow ventilating system.
Background technology
It is one of domestic and international hydrogen inner cooling turbo generator rotor ventilation type of cooling commonly used that the gap-pickup oblique flow ventilates, in this type of cooling, the required hydrogen of cooled rotor enters the oblique cooling air channel of coil inside by air gap between rotor from the air inlet (inlet scoop) on the rotor body slot wedge, and the air outlet (going out wind scoop) from the body slot wedge in another wind district enters air gap then.In the gap-pickup structure, the refrigerating gas amount that enters rotor depends on the exhaust pressure of the air intake pressure of air inlet, air outlet and the flow resistance of inner cooling air channel, and the shape of the exhaust pressure of the air intake pressure of air inlet and air outlet and wind scoop is closely related.In design in the past, wind scoop protrudes rotor surface usually, promptly adopts protruding wind scoop.Ventilate though this helps gap-pickup, what bring is that higher wind moussing loss and noise is bigger thereupon, and takes out cartridge rotor inconvenience.
Summary of the invention
The purpose of this utility model provides a kind of rotor of steam turbo generator frictional dissipation in when operation that reduces, the noise when reducing generator operation, and the hydrogen inner-cooling generator rotor airgap of being convenient to take out cartridge rotor is simultaneously got the latent wind scoop structure of gas oblique flow ventilating system.
For realizing above purpose, the technical solution of the utility model provides the latent wind scoop structure that a kind of hydrogen inner-cooling generator rotor airgap is got gas oblique flow ventilating system, comprise slot wedge, rotor coil, rotor, coil oblique flow air duct, rotor coil is located in the rotor, slot wedge is located in the rotor outer surface, coil oblique flow air duct passes rotor coil, it is characterized in that, be provided with rotor air intake slot wedge and air-out slot wedge, air intake slot wedge air inlet and the air-out groove air port of edging away is connected with coil oblique flow air duct two-port respectively.
Described rotor slot wedge air inlet is a V-type, and β is 70-75 ° with coil oblique flow air duct connection angle, and import center line angle α is 30-35 °, and edge angle θ is 10-15 °; Described rotor slot wedge air outlet and coil oblique flow air duct connection angle γ are 70-75 °.
The utility model rotor slot wedge is by original protrusion rotor surface, be improved to slot wedge and do not protrude the latent wind scoop structure of rotor surface, the utility model adopts has the turnover wind slot wedge of optimizing air intake angle and air-out angle, make the oblique flow ventilating system get the gas ability and exhaust capacity is high as far as possible.
Adopt latent wind scoop structure for gap-pickup oblique flow ventilating system, carried out theory analysis, CFD numerical simulation and static test, come that the implicit expression wind scoop is formed gap-pickup oblique flow air channel and study.Studies show that, the implicit expression wind scoop oblique flow ventilating system that the utility model adopts can satisfy the needs that the generator amature Inside coil ventilates fully, effectively reduces the temperature rise of generator amature, generator wind moussing loss and noise are reduced, made things convenient for the process that installs rotor.
The utility model has the advantages that the frictional dissipation when reducing the rotor of steam turbo generator operation, the noise when reducing generator operation is convenient to take out cartridge rotor simultaneously.
Description of drawings
Fig. 1 gets the latent wind scoop structural representation of gas oblique flow ventilating system for the hydrogen inner-cooling generator rotor airgap;
Fig. 2 is a rotor slot wedge air inlet structure schematic diagram;
Fig. 3 is a rotor slot wedge air outlet structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, get the latent wind scoop architecture schematic diagram of gas oblique flow ventilating system for the hydrogen inner-cooling generator rotor airgap, described hydrogen inner-cooling generator rotor airgap is got the latent wind scoop structure of gas oblique flow ventilating system, by rotor slot wedge air inlet 1, slot wedge 2, rotor coil 3, rotor 4, coil oblique flow air duct 5, rotor slot wedge air outlet 6 is formed.Rotor coil 3 is located in the rotor 4, slot wedge 2 is located in rotor 4 outer surfaces, processing coil oblique flow air duct 5 in rotor coil 3, coil oblique flow air duct 5 passes rotor coil 3, be provided with air intake slot wedge and air-out slot wedge, air intake slot wedge air inlet and the air-out groove air port of edging away is connected with coil oblique flow air duct two-port respectively.
In line embedding groove, essential slot liner, coil and other essential insulating mounting is good, knock in slot wedge 2 at last, according to designing requirement, the size of advancing ventilation slot on exhaust vent and the rotor tooth to generator amature air intake slot wedge and rotor air-out slot wedge is processed, and generally adopts Digit Control Machine Tool processing.
As shown in Figure 2, be rotor slot wedge air inlet structure schematic diagram, described rotor slot wedge air inlet 1 is a V-type, and 5 connection angle β are 70-75 ° with coil oblique flow air duct, and import center line angle α is 30-35 °, and edge angle θ is 10-15 °.
As shown in Figure 3, be rotor slot wedge air outlet structure schematic diagram, described rotor slot wedge air outlet 6 is 70-75 ° with coil oblique flow air duct 5 connection angle γ.Generator amature axially, according to the characteristics of gap-pickup draft type,, form air intake district and wind outlet area alternately at the diverse location of rotor axial.
Claims (3)
1. a hydrogen inner-cooling generator rotor airgap is got the latent wind scoop structure of gas oblique flow ventilating system, comprise slot wedge (2), rotor coil (3), rotor (4), coil oblique flow air duct (5), rotor coil (3) is located in the rotor (4), slot wedge (2) is located in rotor (4) outer surface, coil oblique flow air duct (5) passes rotor coil (3), it is characterized in that, be provided with rotor air intake slot wedge and air-out slot wedge, air intake slot wedge air inlet and the air-out groove air port of edging away is connected with coil oblique flow air duct two-port respectively.
2. a kind of hydrogen inner-cooling generator rotor airgap according to claim 1 is got the latent wind scoop structure of gas oblique flow ventilating system, it is characterized in that, described rotor slot wedge air inlet (1) is a V-type, connection angle β is 70-75 ° with coil oblique flow air duct (5), import center line angle α is 30-35 °, and edge angle θ is 10-15 °.
3. a kind of hydrogen inner-cooling generator rotor airgap according to claim 1 is got the latent wind scoop structure of gas oblique flow ventilating system, it is characterized in that, described rotor slot wedge air outlet (6) is 70-75 ° with coil oblique flow air duct (5) connection angle γ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042085 CN2917069Y (en) | 2006-05-25 | 2006-05-25 | Concealed wind catcher structure of oblique air flow ventilation system for ventilation through air clearance of internally hydrogen cooled generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042085 CN2917069Y (en) | 2006-05-25 | 2006-05-25 | Concealed wind catcher structure of oblique air flow ventilation system for ventilation through air clearance of internally hydrogen cooled generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917069Y true CN2917069Y (en) | 2007-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042085 Expired - Lifetime CN2917069Y (en) | 2006-05-25 | 2006-05-25 | Concealed wind catcher structure of oblique air flow ventilation system for ventilation through air clearance of internally hydrogen cooled generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2917069Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518610A (en) * | 2013-09-27 | 2015-04-15 | 大银微系统股份有限公司 | Rod type motor fluid cooling mechanism |
| CN104821677A (en) * | 2015-05-14 | 2015-08-05 | 北京交通大学 | Stator main and auxiliary slot wedge for large-scale turbonator |
| WO2018054225A1 (en) * | 2016-09-20 | 2018-03-29 | 北京交通大学 | Cooling device for reducing temperature of permanent magnet in permanent magnet motor |
| CN107947463A (en) * | 2018-01-10 | 2018-04-20 | 东方电气集团东方电机有限公司 | The outside cold wind line structure of rotor of steam turbo generator end coil axis |
| DE102019212391A1 (en) * | 2019-08-19 | 2021-02-25 | Robert Bosch Gmbh | Rotor with a slot closure element for an electrical machine |
-
2006
- 2006-05-25 CN CN 200620042085 patent/CN2917069Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518610A (en) * | 2013-09-27 | 2015-04-15 | 大银微系统股份有限公司 | Rod type motor fluid cooling mechanism |
| CN104821677A (en) * | 2015-05-14 | 2015-08-05 | 北京交通大学 | Stator main and auxiliary slot wedge for large-scale turbonator |
| CN104821677B (en) * | 2015-05-14 | 2018-08-17 | 北京交通大学 | The stator major-minor slot wedge of large turbo-type generator |
| WO2018054225A1 (en) * | 2016-09-20 | 2018-03-29 | 北京交通大学 | Cooling device for reducing temperature of permanent magnet in permanent magnet motor |
| RU2728758C1 (en) * | 2016-09-20 | 2020-07-31 | Бейджинг Цзяотун Юниверсити | Cooling device for reducing temperature of permanent magnet in motor with permanent magnets |
| CN107947463A (en) * | 2018-01-10 | 2018-04-20 | 东方电气集团东方电机有限公司 | The outside cold wind line structure of rotor of steam turbo generator end coil axis |
| CN107947463B (en) * | 2018-01-10 | 2024-01-19 | 东方电气集团东方电机有限公司 | Axial external cooling air path structure of turbine generator rotor end coil |
| DE102019212391A1 (en) * | 2019-08-19 | 2021-02-25 | Robert Bosch Gmbh | Rotor with a slot closure element for an electrical machine |
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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: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI STEAM TURBINE GENERATOR CO. LTD. Effective date: 20080530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080530 Address after: No. 188, Chun Chun Road, Shanghai, Minhang District: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 555, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Turbine Generator Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070627 |
|
| EXPY | Termination of patent right or utility model |