CN104901481B - Stator winding vacuum water-cooled non salient pole generator - Google Patents
Stator winding vacuum water-cooled non salient pole generator Download PDFInfo
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- CN104901481B CN104901481B CN201510311436.7A CN201510311436A CN104901481B CN 104901481 B CN104901481 B CN 104901481B CN 201510311436 A CN201510311436 A CN 201510311436A CN 104901481 B CN104901481 B CN 104901481B
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Abstract
The invention discloses stator winding vacuum water-cooled non salient pole generator, it is related to machine field.The present invention in order to solve the problems, such as that existing non salient pole generator stator copper heating in winding is serious and stator copper winding in axial direction the temperature difference is larger.Stator water pipe is along the circumferential direction arranged between stator copper winding and stator copper winding insulation, and stator water pipe is closely contacted with stator copper winding and stator copper winding insulation, the region vacuum pumping layer of stator water pipe, stator copper winding and the encirclement of stator copper winding insulation.The cooling water of flowing is connected with stator water pipe, the section of stator water pipe is square.The present invention is simple in construction, effectively limit the temperature rise of the serious stator copper winding of non salient pole generator internal heat generation and the ability of its transmission heat, reduces the temperature of stator copper winding and stator copper winding insulation, enhances the ability of non salient pole generator safe and stable operation.
Description
Technical field：
The present invention relates to stator winding vacuum water-cooled non salient pole generator, belong to machine field.
Background technology：
The stability of supply and power network of the performance of large-scale non salient pole generator to electric power all has a great impact, and how to improve
The single-machine capacity and runnability of non salient pole generator have become the vital task of generator design.And to make non salient pole generator
Single-machine capacity is improved, it is necessary to by increasing the current density in stator copper winding, that is, increases the electromagnetic load of generator
To realize, but this necessarily causes each component loss in generator to accordingly increase, and causes the temperature of each component in non salient pole generator
Rise and further increase, the temperature rise increase of especially stator copper winding becomes apparent, and is easy to beyond stator copper winding insulation
Temperature rise limit, the stable operation of non salient pole generator is threatened.
The major issue that non salient pole generator projector needs to face is how to effectively improve dissipating for non salient pole generator
The temperature rise of heat energy power and limitation generator inner stator copper winding, to adapt to the single-machine capacity of the generator constantly increased.Therefore, it is anxious
The temperature rise of stator copper winding need to be reduced using the cooling technology of more reasonable, it is no more than stator copper winding insulation
Temperature rise limit, it is ensured that non salient pole generator being capable of safe and stable operation.
The content of the invention：
It is an object of the invention to provide stator winding vacuum water-cooled non salient pole generator, to solve non salient pole generator due to fixed
Sub- copper loss is high, cooling effect is poor and causes the problem of stator copper winding temperature is too high and in axial direction the temperature difference is larger,
The cooling effect of stator copper winding and stator copper winding insulation can be effectively improved.
The stator winding vacuum water-cooled non salient pole generator of the present invention, it includes stator copper winding, stator water pipe, stator copper
Winding insulation, vacuum layer, layer insulation and slot wedge.Stator copper winding is by stator upper copper winding and stator lower floor copper winding group
Into stator water pipe is made up of stator upper strata water pipe and stator lower floor water pipe, and stator copper winding insulation is exhausted by stator upper copper winding
Edge and stator lower floor copper winding insulation composition.Stator water pipe is along the circumferential direction arranged on stator copper winding and stator copper winding insulation
Between, and stator water pipe is closely contacted with stator copper winding and stator copper winding insulation, stator water pipe, stator copper winding and
The region that stator copper winding insulation surrounds is vacuum layer.The cooling water of flowing is connected with stator water pipe.
The section of stator water pipe is square, and the square length of side is taken as 5mm-9mm.The cooling water being connected with stator water pipe
Flow velocity for 1m/s-4m/s, it is necessary to be determined according to the size of current in the single-machine capacity of non salient pole generator and stator copper winding.
The region that stator water pipe, stator copper winding and stator copper winding insulation surround is evacuated layer, serves heat-insulated effect, is hindered
Stator copper winding is hindered to the heat of stator copper winding insulation transmission.Along the number of the stator water pipe of stator copper winding outer surface installation
Measure as 10-14.
Preferably, the quantity of described stator upper strata water pipe is increased, it is even more serious to significantly reduce heating
Stator upper copper winding temperature.
Preferably, described stator upper copper winding and the centre position installation of stator upper copper winding insulation are thicker
Thermal insulation board, the thickness of thicker thermal insulation board is 3mm-4mm.In the centre of stator lower floor copper winding and stator lower floor copper winding insulation
Position installs relatively thin thermal insulation board additional, and the thickness of relatively thin thermal insulation board is 1mm-2mm.By between thermal insulation board and stator copper winding insulation
Region be pumped into external vacuum layer, and inner vacuum layer is pumped into the region between stator copper winding and thermal insulation board.Install additional every
Stator copper winding can be further hindered to reduce stator copper winding insulation to the heat of stator copper winding insulation transmission after hot plate
Temperature.
Advantages of the present invention：The region that stator water pipe, stator copper winding and stator copper winding insulation surround is evacuated
Layer, the vacuum layer serve heat-insulated effect, effectively hinder stator copper winding and be delivered to stator copper winding by vacuum layer
The heat of insulation.The cooling water in stator water pipe arranged around stator copper winding can also efficiently take away stator copper winding,
Heat between stator copper winding insulation and stator copper winding and stator copper winding insulation in vacuum layer.It is fixed to significantly reduce
The temperature of sub- copper winding and stator copper winding insulation, solving the problems, such as stator copper winding, in axial direction the temperature difference is larger.The hair
It is bright simple in construction, the temperature classification requirement of stator copper winding insulation can be reduced, the cost of insulating materials is saved, effectively limits
The temperature rise of the serious stator copper winding of non salient pole generator internal heat generation and the ability of its transmission heat are made, it is ensured that non salient pole generator
Safe and stable operation.
Brief description of the drawings：
For ease of explanation, the present invention is described in detail by following specific implementations and accompanying drawing.
Fig. 1 is the structural representation of vacuum water-cooled stator winding of the present invention；
Fig. 2 is the structural representation of the vacuum water-cooled stator winding described in the specific embodiment of the invention two；
Fig. 3 is the structural representation of the vacuum water-cooled stator winding described in the specific embodiment of the invention three.
In figure：1- stator copper windings；2- stator water pipes；3- stator copper winding insulations；4- vacuum layers；5- layer insulations；6-
Slot wedge；Thermal insulation board thicker 7-；Thermal insulation board relatively thin 8-；9- external vacuum layers；10- inner vacuum layers.
Embodiment：
It is specific below by what is shown in accompanying drawing to make the object, technical solutions and advantages of the present invention of greater clarity
Embodiment describes the present invention.However, it should be understood that these descriptions are merely illustrative, and it is not intended to limit the model of the present invention
Enclose.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring the present invention's
Concept.
Embodiment one：Illustrate present embodiment with reference to Fig. 1, the stator winding vacuum water cooling described in present embodiment
Formula non salient pole generator, it includes stator copper winding 1, stator water pipe 2, stator copper winding insulation 3, vacuum layer 4, the and of layer insulation 5
Slot wedge 6.Stator copper winding 1 is made up of stator upper copper winding 1-1 and stator lower floor copper winding 1-2, and stator water pipe 2 is by stator
Layer water pipe 2-1 and stator lower floor water pipe 2-2 compositions, stator copper winding insulation 3 is by under stator upper copper winding insulation 3-1 and stator
Layer copper winding insulation 3-2 compositions.Stator water pipe 2 be along the circumferential direction arranged on stator copper winding 1 and stator copper winding insulation 3 it
Between, and stator water pipe 2 is closely contacted with stator copper winding 1 and stator copper winding insulation 3, stator water pipe 2, stator copper winding
1 and stator copper winding insulation 3 surround region be vacuum layer 4.The cooling water of flowing is connected with stator water pipe 2.
The section of stator water pipe 2 is square, and the square length of side is taken as 5mm-9mm, and the present embodiment is taken as 8mm.Stator
The flow velocity for the cooling water being connected with water pipe 2 is 1m/s-4m/s, it is necessary to according to the single-machine capacity of non salient pole generator and stator copper winding
Size of current in 1 determines that the present embodiment is taken as 2m/s.By stator water pipe 2, stator copper winding 1 and stator copper winding insulation 3
The region of encirclement is evacuated layer 4, serves heat-insulated effect, hinders stator copper winding 1 and transmitted to stator copper winding insulation 3
Heat.Quantity along the stator water pipe 2 of the outer surface of stator copper winding 1 installation is 10-14, and the present embodiment is taken as 12.
The heat of stator copper winding 1 can be taken away by the cooling water in the surrounding stator water pipe 2 of stator copper winding 1.Stator
Vacuum layer 4 between copper winding 1 and stator copper winding insulation 3 can effectively hinder the transmission of heat, and stator copper around
During the heat of group 1 is delivered to stator copper winding insulation 3 by vacuum layer 4, in the stator water pipe 1 in vacuum layer 4
Cooling water has taken away the heat in vacuum layer 4, so as to get the heat up to stator copper winding insulation 3 significantly reduces.In addition, stator water
Cooling water in pipe 1 also serves cooling effect to stator copper winding insulation 3.Can be effective in the presence of multiple cooling technology
Reduce the heat that stator copper winding 1 is delivered to stator copper winding insulation 3 in ground, hence it is evident that reduce stator copper winding 1 and stator copper around
The temperature of group insulation 3, it effectively limit temperature rise and its transmission heat of the serious stator copper winding 1 of non salient pole generator internal heat generation
Ability, solving the problems, such as stator copper winding 1, in axial direction the temperature difference is larger.
Embodiment two：Illustrate present embodiment, the difference of present embodiment and embodiment one with reference to Fig. 2
It is that its quantity to stator upper strata water pipe 2-1 is increased, significantly reduces even more serious stator upper copper of generating heat
Winding 1-1 temperature.Other compositions and annexation are identical with embodiment one.
Embodiment three：Illustrate present embodiment, the difference of present embodiment and embodiment one with reference to Fig. 3
It is that it installs thicker thermal insulation board 7 additional in stator upper copper winding 1-1 and stator upper copper winding insulation 3-1 centre position,
The thickness of thicker thermal insulation board 7 is 3mm-4mm, and the present embodiment is taken as 3mm.In stator lower floor copper winding 1-2 and stator lower floor copper
Winding insulation 3-2 centre position installs relatively thin thermal insulation board 8 additional, and the thickness of relatively thin thermal insulation board 8 is 1mm-2mm, the present embodiment
It is taken as 1mm.External vacuum layer 9 is pumped into region between thermal insulation board and stator copper winding insulation 3, and by stator copper winding 1
It is pumped into inner vacuum layer 10 in region between thermal insulation board.Stator copper winding 1 can be further hindered to calmly after installing thermal insulation board additional
The heat that sub- copper winding insulation 3 transmits, reduce the temperature of stator copper winding insulation 3.Other compositions and annexation and implementation
Mode one is identical.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. stator winding vacuum water-cooled non salient pole generator, it is characterised in that：It includes stator copper winding (1), stator water pipe
(2), stator copper winding insulation (3), vacuum layer (4), layer insulation (5) and slot wedge (6), stator copper winding (1) is by stator upper strata
Copper winding (1-1) and stator lower floor copper winding (1-2) composition, stator water pipe (2) is by stator upper strata water pipe (2-1) and stator lower floor
Water pipe (2-2) forms, and stator copper winding insulation (3) is by stator upper copper winding insulation (3-1) and stator lower floor copper winding insulation
(3-2) is formed, and stator water pipe (2) is along the circumferential direction arranged between stator copper winding (1) and stator copper winding insulation (3), and
And stator water pipe (2) is closely contacted with stator copper winding (1) and stator copper winding insulation (3), stator water pipe (2), stator copper
The region that winding (1) and stator copper winding insulation (3) surround is vacuum layer (4), and the cooling of flowing is connected with stator water pipe (2)
Water, the section of stator water pipe (2) is square, and the square length of side is taken as 5mm-9mm；The cooling being connected with stator water pipe (2)
The flow velocity of water be 1m/s-4m/s, it is necessary to according to the size of current in the single-machine capacity of non salient pole generator and stator copper winding (1) come
It is determined that；Quantity along the stator water pipe (2) of stator copper winding (1) outer surface installation is 10-14；
The centre position of described stator upper copper winding (1-1) and stator upper copper winding insulation (3-1) install additional it is thicker every
Hot plate (7), the thickness of thicker thermal insulation board (7) is 3mm-4mm, in stator lower floor copper winding (1-2) and stator lower floor copper winding
The centre position of insulation (3-2) installs relatively thin thermal insulation board (8) additional, and the thickness of relatively thin thermal insulation board (8) is 1mm-2mm；Will be heat-insulated
External vacuum layer (9) is pumped into region between plate and stator copper winding insulation (3), and by stator copper winding (1) and thermal insulation board
Between region be pumped into inner vacuum layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311436.7A CN104901481B (en) | 2015-06-09 | 2015-06-09 | Stator winding vacuum water-cooled non salient pole generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311436.7A CN104901481B (en) | 2015-06-09 | 2015-06-09 | Stator winding vacuum water-cooled non salient pole generator |
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| Publication Number | Publication Date |
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| CN104901481A CN104901481A (en) | 2015-09-09 |
| CN104901481B true CN104901481B (en) | 2018-03-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108604850B (en) * | 2016-02-03 | 2020-12-15 | 三菱电机株式会社 | Rotating electrical machine |
| CN108649749B (en) * | 2018-06-13 | 2020-03-03 | 哈尔滨理工大学 | Switched reluctance motor with water injection type winding and multidirectional self-circulation ventilation system |
| CN110011508A (en) * | 2019-04-10 | 2019-07-12 | 蚁人(苏州)机械科技有限公司 | Wear-resistant anticorrosive under-water DC brushless motor |
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| CN1220036A (en) * | 1996-05-29 | 1999-06-16 | Abb阿西亚布朗·勃法瑞公司 | Rotary electric machine with axial cooling |
| JP2007202332A (en) * | 2006-01-27 | 2007-08-09 | Nissan Motor Co Ltd | Cooling structure of rotary-electric machine |
| JP2008154319A (en) * | 2006-12-14 | 2008-07-03 | Hitachi Industrial Equipment Systems Co Ltd | Rotary electric machine |
| EP2523312B1 (en) * | 2011-05-12 | 2018-11-28 | Siemens Aktiengesellschaft | Stator arrangement |
| CN204761235U (en) * | 2015-06-09 | 2015-11-11 | 哈尔滨理工大学 | Latent utmost point generator of stator winding vacuum water -cooled |
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