CN201813227U - Laser-welding air passage wall for generator of nuclear power station - Google Patents
Laser-welding air passage wall for generator of nuclear power station Download PDFInfo
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- CN201813227U CN201813227U CN2010205290686U CN201020529068U CN201813227U CN 201813227 U CN201813227 U CN 201813227U CN 2010205290686 U CN2010205290686 U CN 2010205290686U CN 201020529068 U CN201020529068 U CN 201020529068U CN 201813227 U CN201813227 U CN 201813227U
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- iron core
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- ventilation channel
- punching
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Abstract
The utility model relates to the field of generators, in particular to an air passage wall. A laser-welding air passage wall for a generator of a nuclear power station comprises a main body of a fan-shaped piece, wherein the main body of the fan-shaped piece comprises a tooth part of an iron core and a yoke part of the iron core, the tooth part of the iron core is provided with punching piece teeth, ventilation channel steel is arranged on the punching piece teeth, the yoke part of the iron core is provided with through holes and ventilation channel steel, ferrules are arranged on the through holes, the main body of the fan-shaped piece is in a sector structure with the central angle of 40 degrees, at least four punching piece teeth are arranged on the main body of the fan-shaped piece, two pieces of ventilation channel steel are arranged on the punching piece teeth, and the middle parts of the punching piece teeth are provided with rectangular notches along a length direction; and at least two concave teeth are arranged above the yoke part of the iron core and are in an isosceles trapezoid with an upper narrow part and a lower wide part. Because of adopting the technical scheme, an iron core of a stator, which is manufactured by adopting the utility model, avoids eddy current loss effectively. The utility model has the advantages of reasonable heat radiation, safe running of the iron core of the stator and the like and is simple to manufacture.
Description
Technical field
The utility model relates to electrical generator fields, is specifically related to a kind of wind path wall.
Background technology
Electric energy is one of topmost energy of modern society.Generator is the plant equipment that other forms of energy conversion is become electric energy.Stator core is the critical component of generator, and the axial distribution of stator core many retainings radial passage, and these air channels are circumferentially to be spliced by polylith wind path wall edge, and air-flow is taken away the heat of stator core through the air channel wall energy.
The wind path wall that uses generally comprises the iron core fanning strip at present, and the iron core fanning strip is divided into iron core teeth portion and iron core yoke portion, and iron core yoke portion is provided with through hole and radial ventilation channel-section steel, is provided with lasso around the through hole.Also be provided with the ventilation channel-section steel in the iron core teeth portion,, form the air channel according to the position of ventilation channel-section steel on the iron core fanning strip.There is eddy current loss in existing wind path wall, also exists iron core teeth portion too little because of rigidity, is easy to generate the fatigue damage of punching tooth, directly influences the safe operation of generator.
The utility model content
The purpose of this utility model is to provide a kind of laser welding wind path wall that is used for the nuclear power station generator, to solve the problems of the technologies described above.
The technical problem that the utility model solved can realize by the following technical solutions:
The laser welding wind path wall that is used for the nuclear power station generator, comprise a fanning strip main body, described fanning strip main body comprises iron core teeth portion and iron core yoke portion, described iron core teeth portion is provided with the punching tooth, described punching tooth is provided with the ventilation channel-section steel, described iron core yoke portion is provided with through hole and ventilation channel-section steel, described through hole is provided with lasso, it is characterized in that, described fanning strip main body is that central angle is the sector structure of 40 degree, described fanning strip main body is provided with at least four punching teeth, and described punching tooth is provided with two described ventilation channel-section steels, and the middle part of described punching tooth is provided with the rectangle notch along its length;
The top of described iron core yoke portion has at least two recessed teeth, and described recessed tooth is a up-narrow and down-wide isosceles trapezoid.The generator unit stator that the utility model is made because of be provided with notch on the punching tooth, can reduce eddy current loss greatly, has increased the rigidity of iron core teeth portion.Iron core yoke portion is provided with recessed tooth, helps compressing and fixing when press-fiting the utility model, and when making stator core, a circle needs only nine the utility model, reduces to press-fit number of times, has also improved the efficient of making stator core.
Be positioned at the right side that rectangle notch on the described punching tooth on the described fanning strip main body line of symmetry left side is arranged on the tooth center line of described punching tooth;
Be positioned at the left side that rectangle notch on the described punching tooth on described fanning strip main body line of symmetry the right is arranged on the tooth center line of described punching tooth.
The distance of the tooth center line of the described partially punching tooth of described rectangle notch is 4mm～6mm.The utility model is behind closed assembly, and the rectangle notch dislocation on the levels punching tooth, thereby the rigidity of raising end iron core teeth portion prevent that effectively iron core teeth portion from causing broken teeth to damage because of producing fatigue, guaranteed the security of operation of stator core.
Rectangle notch on the described punching tooth is two, is separately positioned on the tooth center line both sides of described punching tooth.So that further reduce eddy current loss, improve the rigidity of iron core teeth portion.
Described fanning strip main body is connected by laser welding with described ventilation channel-section steel.The laser welding technology welding is used for the laser welding wind path wall of nuclear power station generator, welding precision height.Because the laser welding head that laser welding is used is not influenced by or not magnetic field, can aim at weldment accurately, and be contactless welding processing procedure, heat affected area metallographic excursion is little, because of consume that heat conduction caused be out of shape little.During simultaneously owing to the utility model welding, need not use electrode, not have electrode fouling or impaired misgivings, the staff need not do ultraviolet ray and X-ray protection.
The straight carbon steel bar of described ventilation channel-section steel for adopting carbon steel to make.Advantages such as that carbon steel has is in light weight, hardness is big, the ventilation channel-section steel that uses carbon steel material to make can reduce the weight of the laser welding wind path wall that is used for the nuclear power station generator.
The straight stainless steel strip of described ventilation channel-section steel for adopting austenitic stainless steel to make.That stainless steel material has is corrosion-resistant, formability good and good weldability, is easy to be processed into the ventilation channel-section steel of various requirement, also is easy to weld together with the fanning strip main body.
Beneficial effect: owing to adopting technique scheme, the stator core that adopts the utility model to make has effectively been avoided eddy current loss, has advantages such as heat radiation is reasonable, manufacturing is simple, stator core security of operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the part enlarged diagram of the utility model iron core teeth portion.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, be used for the laser welding wind path wall of nuclear power station generator, comprise fanning strip main body 1, fanning strip main body 1 can adopt cold-reduced silicon sheet to make, and specifically can select the silicon steel sheet of 0.5mm～1mm thickness for use.Fanning strip main body 1 comprises iron core teeth portion and iron core yoke portion, iron core teeth portion is provided with punching tooth 2, punching tooth 2 is provided with ventilation channel-section steel 3, iron core yoke portion is provided with through hole 11 and ventilation channel-section steel 3, through hole 11 is provided with lasso, fanning strip main body 1 is the sector structure of 40 degree for central angle, fanning strip main body 1 is provided with at least four punching teeth 2, as shown in Figure 1, fanning strip main body 1 is provided with six punching teeth 2, and punching tooth 2 is provided with two ventilation channel-section steels 3, and the middle part of punching tooth 2 is provided with rectangle notch 21 along its length, rectangle notch 21 is suitable for is arranged to the elongated shape notch, and the height of notch is identical with the height of punching tooth.The top of iron core yoke portion has at least two recessed teeth 12, and recessed tooth 12 is a up-narrow and down-wide isosceles trapezoid.The generator unit stator that the utility model is made because of be provided with rectangle notch 21 on punching tooth 2, can reduce eddy current loss greatly, increases the rigidity of iron core teeth portion.Iron core yoke portion is provided with recessed tooth 12, helps compressing and fixing when press-fiting the utility model, and when making stator core, a circle needs only nine the utility model, reduces to press-fit number of times, has also improved the efficient of making stator core.
With reference to Fig. 2, be positioned at the right side that rectangle notch 21 on the punching tooth 2 on the fanning strip main body 1 line of symmetry left side is arranged on the tooth center line of punching tooth 2; Be positioned at the left side that rectangle notch 21 on the punching tooth 2 on fanning strip main body 1 line of symmetry the right is arranged on the tooth center line of punching tooth 2.The distance of the tooth center line of rectangle notch 21 inclined to one side punching teeth 2 is 4mm～6mm.The utility model is behind closed assembly, and rectangle notch 21 dislocation on the levels punching tooth 2, thereby the rigidity of raising end iron core teeth portion prevent that effectively iron core teeth portion from causing broken teeth to damage because of producing fatigue, guaranteed the security of operation of stator core.The another kind design of the rectangle notch 21 on the punching tooth 2 is as follows: the rectangle notch 21 on the punching tooth 2 is two, is separately positioned on the tooth center line both sides of punching tooth 2.So that further reduce eddy current loss, improve the rigidity of iron core teeth portion.
Fanning strip main body 1 and ventilation channel-section steel 3 are connected by laser welding.The laser welding technology welding is used for the laser welding wind path wall of nuclear power station generator, welding precision height.Because the laser welding head that laser welding is used is not influenced by or not magnetic field, can aim at weldment accurately, and be contactless welding processing procedure, heat affected area metallographic excursion is little, because of consume that heat conduction caused be out of shape little.During simultaneously owing to the utility model welding, need not use electrode, not have electrode fouling or impaired misgivings, the staff need not do ultraviolet ray and X-ray protection.Ventilation channel-section steel 3 can adopt cross section to be the ventilation channel-section steel 3 of " worker " font.Ventilation channel-section steel 3 bearing capacities of " worker " font are strong.Ventilation channel-section steel 3 also can adopt cross section to be the ventilation channel-section steel 3 of " T " font.The ventilation channel-section steel 3 of " T " font is saved material, reduced the whole weight that is used for the laser welding wind path wall of nuclear power station generator, and ventilation effect is good.The straight carbon steel bar of ventilation channel-section steel 3 for adopting carbon steel to make.Advantages such as that carbon steel has is in light weight, hardness is big, the ventilation channel-section steel that uses carbon steel material to make can reduce the weight of the laser welding wind path wall that is used for the nuclear power station generator.During concrete the manufacturing, can adopt the carbon steel of #20 specification.The straight stainless steel strip of ventilation channel-section steel 3 for adopting austenitic stainless steel to make.That stainless steel material has is corrosion-resistant, formability good and good weldability, is easy to be processed into the ventilation channel-section steel of various requirement, also is easy to weld together with the fanning strip main body.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the laser welding wind path wall that is used for the nuclear power station generator, comprise a fanning strip main body, described fanning strip main body comprises iron core teeth portion and iron core yoke portion, described iron core teeth portion is provided with the punching tooth, described punching tooth is provided with the ventilation channel-section steel, described iron core yoke portion is provided with through hole and ventilation channel-section steel, described through hole is provided with lasso, it is characterized in that, described fanning strip main body is that central angle is the sector structure of 40 degree, described fanning strip main body is provided with at least four punching teeth, and described punching tooth is provided with two described ventilation channel-section steels, and the middle part of described punching tooth is provided with the rectangle notch along its length;
The top of described iron core yoke portion has at least two recessed teeth, and described recessed tooth is a up-narrow and down-wide isosceles trapezoid.
2. the laser welding wind path wall that is used for the nuclear power station generator according to claim 1 is characterized in that, is positioned at the right side that rectangle notch on the described punching tooth on the described fanning strip main body line of symmetry left side is arranged on the tooth center line of described punching tooth;
Be positioned at the left side that rectangle notch on the described punching tooth on described fanning strip main body line of symmetry the right is arranged on the tooth center line of described punching tooth.
3. the laser welding wind path wall that is used for the nuclear power station generator according to claim 2 is characterized in that, the distance of the tooth center line of the described partially punching tooth of described rectangle notch is 4mm～6mm.
4. the laser welding wind path wall that is used for the nuclear power station generator according to claim 1 is characterized in that the rectangle notch on the described punching tooth is two, is separately positioned on the tooth center line both sides of described punching tooth.
5. according to any described laser welding wind path wall that is used for the nuclear power station generator in the claim 1 to 4, it is characterized in that the straight carbon steel bar of described ventilation channel-section steel for adopting carbon steel to make.
6. according to any described laser welding wind path wall that is used for the nuclear power station generator in the claim 1 to 4, it is characterized in that the straight stainless steel strip of described ventilation channel-section steel for adopting austenitic stainless steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205290686U CN201813227U (en) | 2010-09-14 | 2010-09-14 | Laser-welding air passage wall for generator of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205290686U CN201813227U (en) | 2010-09-14 | 2010-09-14 | Laser-welding air passage wall for generator of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813227U true CN201813227U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205290686U Expired - Fee Related CN201813227U (en) | 2010-09-14 | 2010-09-14 | Laser-welding air passage wall for generator of nuclear power station |
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| CN (1) | CN201813227U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480964A (en) * | 2013-04-27 | 2014-01-01 | 上海福源智业投资集团有限公司 | Manufacturing process of air duct wall |
| CN104617690A (en) * | 2015-03-04 | 2015-05-13 | 哈尔滨电机厂有限责任公司 | Overflowing fanning strip for strengthening cooling of motor stator |
| CN105162273A (en) * | 2015-09-07 | 2015-12-16 | 江苏通达动力科技股份有限公司 | Improved ventilation groove plate |
| CN106357022A (en) * | 2016-08-29 | 2017-01-25 | 哈尔滨理工大学 | Motor stator ventilating structure provided with streamline channel steel with I-shaped sections |
-
2010
- 2010-09-14 CN CN2010205290686U patent/CN201813227U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480964A (en) * | 2013-04-27 | 2014-01-01 | 上海福源智业投资集团有限公司 | Manufacturing process of air duct wall |
| CN104617690A (en) * | 2015-03-04 | 2015-05-13 | 哈尔滨电机厂有限责任公司 | Overflowing fanning strip for strengthening cooling of motor stator |
| CN105162273A (en) * | 2015-09-07 | 2015-12-16 | 江苏通达动力科技股份有限公司 | Improved ventilation groove plate |
| CN106357022A (en) * | 2016-08-29 | 2017-01-25 | 哈尔滨理工大学 | Motor stator ventilating structure provided with streamline channel steel with I-shaped sections |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |