CN102624152A - Low-noise closed-type cooling system of medium-sized power generator - Google Patents
Low-noise closed-type cooling system of medium-sized power generator Download PDFInfo
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- CN102624152A CN102624152A CN2012101230980A CN201210123098A CN102624152A CN 102624152 A CN102624152 A CN 102624152A CN 2012101230980 A CN2012101230980 A CN 2012101230980A CN 201210123098 A CN201210123098 A CN 201210123098A CN 102624152 A CN102624152 A CN 102624152A
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Abstract
The invention relates to a low-noise closed-type cooling system of a medium-sized power generator, which comprises an built-in stator, a rotor, axial flow fans arranged at two sides of the power generator and a cooler arranged in the middle part of the power generator, wherein axial air channels are uniformly distributed in the outer circumference edge of the built-in stator; and a plurality of radial air channels are distributed in the axial direction of the stator at intervals. According to the cooling system disclosed by the invention, due to adoption of the axial air channels of the built-in stator, heat transfer loss between a stator core and axial support ribs of an engine base in a typical specification power generator air channel is avoided, and the heat dissipation efficiency is improved; due to adoption of the needle support-type stator radial channels, air turbulence motion inside the cooling system is intensified, and the heat dissipation efficiency is improved; and an optimized small-diameter double plano-convex wing type axial flow fan is adopted to replace the conventional large-diameter single centrifugal-type fan, thus the aerodynamic noise is reduced to the greater extent.
Description
Technical field
The present invention relates to a kind of middle generator, especially a kind of cooling system of middle generator.
Background technology
The enclosed self-circulation cooling system efficient that generator adopts at present is low, the vibration noise value is higher.Need carry out innovative design through wind path structure, improve its radiating efficiency, reduce required cooling air quantity,, reduce the generator noise to improve generator power density to generator.
Summary of the invention
The present invention be to provide a kind of in generator low noise closed cooling system, be used to solve that enclosed self-circulation cooling system efficient is low, vibration noise value technical problems of high.
For realizing above-mentioned purpose; Technical scheme of the present invention is: generator low noise closed cooling system in a kind of; Comprise built-in stator; Rotor, aerofoil fan that is installed in the generator both sides and the cooler that is installed in the generator middle part, be characterized in: built-in stator is evenly distributed with the axial ventilation road in the neighboring; Be intervally distributed with some radial ducts on the stator shaft orientation.
The iron core of built-in stator and rotor is that the punching of 0.35mm or 0.5mm is overrided to form by thickness.The axial ventilation road is arranged on that radius is the R place on the punching plane of built-in stator, and evenly distributes.Radial ducts is made up of dividing plate and wind-guiding post, and partition shape is identical with stator punching with size, and thickness is between 0.8～2mm; On dividing plate 4 planes radius be R1, R2, R3, R4, R5 place to be evenly distributed with diameter respectively be the wind-guiding post 3 between 2～6mm, the wind-guiding column length is that air duct 2 width add block board thickness; Wherein, radius is R1, R2 place on the dividing plate plane, and the spacing of adjacent two wind-guiding posts on circumference is 3～5 °; Radius is R3, R4 place on the dividing plate plane, and the spacing of adjacent two wind-guiding posts on circumference is 5～10 °; Radius is the R5 place on the dividing plate plane, and the wind-guiding post divides eight groups of layouts, and every group, adjacent two wind-guiding intercolumniations are 6 °.
Aerofoil fan is the two plano-convex aerofoil profile aerofoil fans of minor diameter, is processed by the metal material casting, and blade quantity is 8～12, and blade tilt is 0～90 °, and length of blade is 100～120mm, and width of blade is 30～50mm.
The invention has the beneficial effects as follows:
This cooling system has adopted built-in stator shaft orientation air duct, has avoided the loss of the heat transferred between stator core and support axial support muscle in the ideal format generator wind path, has improved radiating efficiency; Adopted pin type supporting type stator radial passage, made its inner air turbulent motion aggravation, radiating efficiency improves; Adopt the two plano-convex aerofoil profile tube-axial fans of minor diameter of optimal design to replace conventional large diameter single centrifugal fan, reduced aerodynamic noise by a relatively large margin.
The new and effective low noise cooling system of generator of the present invention all is superior to the cooling system of generator in the routine at aspects such as radiating efficiency, fan efficiency and airborne noises.
Description of drawings
Fig. 1 is a structure cutaway view of the present invention;
Fig. 2 is along the cutaway view of A-A among Fig. 1;
Fig. 3 is the stator structure cutaway view;
Fig. 4 is the partial left side view of Fig. 3;
Fig. 5 is the stator iron-core lamination floor map;
Fig. 6 is the dividing plate floor map;
Fig. 7 is the axial flow fan structure front view;
Fig. 8 is the left view of Fig. 7.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Like Fig. 1; Shown in 2; Generator low noise closed cooling system in of the present invention comprises stator shaft orientation air duct 1, stator radial ducts 2, rotor axial air duct, rotor radial air duct, is installed in the aerofoil fan 7 of generator both sides and is installed in the cooler 10 at generator middle part.The stator shaft orientation air duct is evenly distributed in stator 6 neighborings, and stator radial ducts 2 is spaced apart along stator shaft orientation, and quantity is some.The rotor axial air duct is evenly distributed in rotor 8 circumference, and the rotor radial air duct distributes along rotor 8 axially spaced-aparts, and quantity is identical with stator radial ducts quantity.
This cooling system is a kind of axle, radially mixes enclosed self-loopa ventilating system.Cooling system by carry aerofoil fan, seawater (fresh water)-aerial cooler, wind deflector, rotor axially and radial ducts etc. form.
Aerofoil fan 7 is installed in the both sides of generator, and seawater (fresh water)-aerial cooler is installed in motor crown center position, and the adjacent fan of wind deflector is installed.The rotor axial ventilation hole is symmetrically distributed on the rotor core circumference.
During the motor operation, hot-air flows out from the support middle part, after seawater (fresh water)-aerial cooler cooling, gets into motor internal from the support both sides, under the effect of aerofoil fan, gets into the stator and rotor axial ventilation hole, cools off.This cooling system has following three characteristics:
Characteristic one: adopt built-in stator shaft orientation air duct, avoided the loss of the heat transferred between stator core and support axial support muscle in the ideal format generator wind path, improved radiating efficiency, its structure such as Fig. 3, shown in 4, axial ventilation road 1; Stator core employing some thickness is that the punching of 0.35mm or 0.5mm is overrided to form, and its shape is as shown in Figure 4, and radius is the R place on the punching plane, is evenly distributed with the axial ventilation hole that diameter is a certain value.
Characteristic two: adopt pin type supporting type stator radial passage.Its structure is as shown in Figure 3, the radial ducts 2 of distribution some in stator core axially, and the spacing between each radial ducts 2 is between 60～80mm, and radial ducts 2 width are between 8～10mm.
As shown in Figure 5, radial ducts 2 is made up of dividing plate 4 and wind-guiding post 3, and dividing plate 4 shape and size are identical with stator punching, and thickness is between 0.8～2mm.As shown in Figure 6; On dividing plate 4 planes radius be R1, R2, R3, R4, R5 place to be evenly distributed with diameter respectively be the wind-guiding post 3 between 2～6mm, wind-guiding post 3 length are confirmed (wind-guiding post 3 length are that air duct 2 width add block board thickness) according to air duct width and block board thickness.Wherein, radius is R1, R2 place on dividing plate 4 planes, and the spacing of adjacent two wind-guiding posts 3 on circumference is 3～5 °; Radius is R3, R4 place on dividing plate 4 planes, and the spacing of adjacent two wind-guiding posts 3 on circumference is 5～10 °; Radius is the R5 place on dividing plate 4 planes, 3 fens eight groups of layouts of wind-guiding post, and 5 every group, adjacent two wind-guiding post 3 spacings are 6 °.
Characteristic three: adopt the two plano-convex aerofoil profile aerofoil fans of minor diameter.Like Fig. 7, shown in 8, this aerofoil fan 7 can adopt aluminium or the casting of other metal materials to process, and blade 5 quantity are 8～12, and blade 5 inclination angles are 0～90 °, and blade 5 length are 100～120mm, and blade 5 width are 30～50mm.
Claims (5)
1. generator low noise closed cooling system in a kind; Comprise stator (6); Rotor (8); Be installed in the aerofoil fan (7) of generator both sides and be installed in the cooler (10) at generator middle part, it is characterized in that: said stator (6) is evenly distributed with axial ventilation road (1) in the neighboring; Be intervally distributed with some radial ducts (2) on stator (6) is axial.
2. generator low noise closed cooling system in according to claim 1 is characterized in that: the iron core of said stator (6) and rotor (8) is that the punching of 0.35mm or 0.5mm is overrided to form by thickness.
3. generator low noise closed cooling system in according to claim 1 is characterized in that: said axial ventilation road (1) is arranged on that radius is R place on built-in stator (6) plane, and evenly distribution.
4. generator low noise closed cooling system in according to claim 1; It is characterized in that: said radial ducts (2) is made up of dividing plate (4) and wind-guiding post (3); Dividing plate (4) shape and size are identical with stator punching, and thickness is between 0.8～2mm; On dividing plate (4) plane radius be R1, R2, R3, R4, R5 place to be evenly distributed with diameter respectively be the wind-guiding post (3) between 2～6mm, wind-guiding post (3) length is that air duct (2) width adds upper spacer (4) thickness; Wherein, radius is R1, R2 place on dividing plate (4) plane, and the spacing of adjacent two wind-guiding posts (3) on circumference is 3～5 °; Radius is R3, R4 place on dividing plate (4) plane, and the spacing of adjacent two wind-guiding posts (3) on circumference is 5～10 °; Radius is the R5 place on dividing plate (4) plane, and wind-guiding post (3) divides eight groups of layouts, and 5 every group, adjacent two wind-guiding posts (3) spacing is 6 °.
5. generator low noise closed cooling system in according to claim 1; It is characterized in that: said aerofoil fan (7) is the two plano-convex aerofoil profile aerofoil fans of minor diameter; Processed by the metal material casting, blade (5) quantity is 8～12, and blade (5) inclination angle is 0～90 °; Blade (5) length is 100～120mm, and blade (5) width is 30～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101230980A CN102624152A (en) | 2012-04-25 | 2012-04-25 | Low-noise closed-type cooling system of medium-sized power generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101230980A CN102624152A (en) | 2012-04-25 | 2012-04-25 | Low-noise closed-type cooling system of medium-sized power generator |
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| CN102624152A true CN102624152A (en) | 2012-08-01 |
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| CN2012101230980A Pending CN102624152A (en) | 2012-04-25 | 2012-04-25 | Low-noise closed-type cooling system of medium-sized power generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891565A (en) * | 2012-11-01 | 2013-01-23 | 中国船舶重工集团公司第七0四研究所 | High-power density permanent magnet motor cooling system |
| CN109921526A (en) * | 2019-04-18 | 2019-06-21 | 哈尔滨电机厂有限责任公司 | A kind of generator motor annular forging piece magnetic yoke structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529251U (en) * | 1991-09-20 | 1993-04-16 | 株式会社東芝 | Rotating electric machine |
| CN201409021Y (en) * | 2009-05-06 | 2010-02-17 | 福建联合动力设备制造有限公司 | Stator core with ventilation holes |
| CN102064635A (en) * | 2011-01-12 | 2011-05-18 | 哈尔滨理工大学 | Steam turbine generator provided with axial-radial ventilating and cooling system |
| CN102290922A (en) * | 2011-09-06 | 2011-12-21 | 永济新时速电机电器有限责任公司 | Double-fed wind generator |
| CN202634188U (en) * | 2012-04-25 | 2012-12-26 | 中国船舶重工集团公司第七0四研究所 | Medium-sized generator low noise closed cooling system |
-
2012
- 2012-04-25 CN CN2012101230980A patent/CN102624152A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529251U (en) * | 1991-09-20 | 1993-04-16 | 株式会社東芝 | Rotating electric machine |
| CN201409021Y (en) * | 2009-05-06 | 2010-02-17 | 福建联合动力设备制造有限公司 | Stator core with ventilation holes |
| CN102064635A (en) * | 2011-01-12 | 2011-05-18 | 哈尔滨理工大学 | Steam turbine generator provided with axial-radial ventilating and cooling system |
| CN102290922A (en) * | 2011-09-06 | 2011-12-21 | 永济新时速电机电器有限责任公司 | Double-fed wind generator |
| CN202634188U (en) * | 2012-04-25 | 2012-12-26 | 中国船舶重工集团公司第七0四研究所 | Medium-sized generator low noise closed cooling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891565A (en) * | 2012-11-01 | 2013-01-23 | 中国船舶重工集团公司第七0四研究所 | High-power density permanent magnet motor cooling system |
| CN109921526A (en) * | 2019-04-18 | 2019-06-21 | 哈尔滨电机厂有限责任公司 | A kind of generator motor annular forging piece magnetic yoke structure |
| CN109921526B (en) * | 2019-04-18 | 2020-11-06 | 哈尔滨电机厂有限责任公司 | Magnetic yoke structure of annular forging of generating motor |
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Application publication date: 20120801 |