CN205453320U - Turbo generator stator tip limit iron leg core and magnetism shielding structure - Google Patents
Turbo generator stator tip limit iron leg core and magnetism shielding structure Download PDFInfo
- Publication number
- CN205453320U CN205453320U CN201620296843.5U CN201620296843U CN205453320U CN 205453320 U CN205453320 U CN 205453320U CN 201620296843 U CN201620296843 U CN 201620296843U CN 205453320 U CN205453320 U CN 205453320U
- Authority
- CN
- China
- Prior art keywords
- leg core
- iron leg
- stator
- limit iron
- short
- Prior art date
- 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 - Fee Related
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Turbo generator stator tip limit iron leg core and magnetism shielding structure, it relates to a turbo generator stator tip structure. The utility model discloses a to have the saturation level of stator limit iron leg core tooth portion too high in order to solve turbo generator among the prior art, causes that generator limit iron leg core tooth portion is overheated and receive the iron core warpage that the thermal stress causes, the problem of falling the emergence of tooth and phenomenon of rupture. The utility model discloses a bolt group that the stator limit iron leg core installed in proper order from inside to outside, tip end finger, a plurality of magnetic screen and a plurality of ring array distribute is equipped with stator limit iron leg core tooth portion short circuit ring on the stator tooth of stator limit iron leg core, be equipped with the magnetic screen short circuit ring between the two adjacent magnetic screens, and magnetic screen and magnetic screen short circuit ring pass through bolt group and tip end finger fixed connection. The utility model discloses the servo effect of effectual improvement tip limit iron leg core and magnetic screen.
Description
Technical field
This utility model relates to turbine generator stator end structure, is specifically related to turbine generator stator end limit iron leg core and magnet shielding structure, belongs to electrical engineering technical field.
Background technology
Steam turbine generator is as the nucleus equipment of power system, its safe and stable operation is the most crucial, the electric current density that stator of steam turbine generator is higher can cause the gathering of generator end leakage field, hot property and the mechanical performance of generator end structure will be directly influenced, especially, the occasion of Generation in Leading Phase Operation operating mode is required for some, when generator end synthesis leakage magnetic flux is run relatively late mutually, synthesis leakage magnetic flux in end increases, at higher generator stator end limit iron leg core, axial leakage field can sense bigger eddy current in its core lamination stack, limit iron leg core excess calories is caused to be concentrated, limit iron leg core teeth portion local deformation is caused by thermal stress, the warpage of electromotor limit iron leg core may be caused time serious, electromotor limit iron leg core falls tooth and phenomenon of rupture happens occasionally, the highest ratio is occupied in all kinds of fault of steam turbine generator and accident；In addition, generator end magnetic shield is mainly used in absorbing the parasitic leakage field of end regions to weaken other structures invasion degree by leakage field, generator end stator winding space structure is complicated, the complex distribution of the end space region leakage field that in stator end current－carrying conductor, electric current causes, the parasitic axially leakage field in turbo-generator end region can make the degree of saturation of magnetic shield increase so that it is the ability of absorption circumference leakage field and radially leakage field reduces.
Utility model content
The purpose of this utility model is that to there is the degree of saturation of stator limit iron leg core teeth portion too high in order to solve steam turbine generator of the prior art, the iron core warpage that causes electromotor limit iron leg core teeth portion overheated and to be caused by thermal stress, fall occurring of tooth and phenomenon of rupture, the ability that generator end magnetic shield absorbs circumference leakage field and radial direction leakage field is low, makes the problem that end each magnetic conduction construction part resists the ability of axial leakage field to reduce.
The technical solution of the utility model is: turbine generator stator end limit iron leg core and magnet shielding structure, bolt group including the distribution of the stator limit iron leg core installed the most successively, end end finger, some magnetic shields and some annular arrays, the stator tooth of described stator limit iron leg core is provided with stator limit iron leg core teeth portion short-circuited conducting sleeve, it is provided with magnetic shield short-circuited conducting sleeve, described magnetic shield and magnetic shield short-circuited conducting sleeve between adjacent two magnetic shields to be connected by bolt group and end end finger are fixing.
The end of described stator tooth is provided with the through hole that left and right circumferentially is through, stator limit iron leg core teeth portion short-circuited conducting sleeve includes connecting portion and kink, described connecting portion is placed in through hole, kink is connected with connecting portion after bending along stator tooth external shape and forms closed-loop path, the suit direction of described stator limit iron leg core teeth portion short-circuited conducting sleeve is footpath-incisal plane, the winding direction of stator limit iron leg core teeth portion short-circuited conducting sleeve is footpath-incisal plane coiling, coiling direction is with axially vertical, i.e. stator limit iron leg core teeth portion short-circuited conducting sleeve opening direction is with axially vertical, weaken the axial leakage magnetic flux near the iron leg core of stator limit.
What stator limit iron leg core teeth portion short-circuited conducting sleeve surrounded is shaped as rectangle, is close to the sidewall of stator tooth and tooth top and teeth portion air vent during its coil winding, forms the short-circuited conducting sleeve of rectangle.
If described bolt group includes bolt stem, magnetic shield short-circuited conducting sleeve is set in the outside of bolt group, the arrangement of described bolt is generally circular in shape or polygon, the laying direction of described magnetic shield short-circuited conducting sleeve is footpath-incisal plane, and described magnetic shield short-circuited conducting sleeve winding direction is footpath-incisal plane coiling, and coiling direction is with axially vertical, i.e. magnetic shield short-circuited conducting sleeve opening direction is with axially vertical, offset axial leakage magnetic flux, reduce the magnetic saturation degree of magnetic shield, improve the footpath-tangential magnetic property of magnetic shield；
It is interconnected to constitute integral structure between adjacent two magnetic shield short-circuited conducting sleeves.
Coupling part between described adjacent two magnetic shield short-circuited conducting sleeves is polygonal annular.
Include between adjacent two magnetic shields that some groups of shapes are identical and along the axial arranged magnetic shield short-circuited conducting sleeve of bolt.
Described stator limit iron leg core teeth portion short-circuited conducting sleeve is high conductivity metal short-circuited conducting sleeve.
Described steam turbine generator is leading phase operation electromotor, and stator limit iron leg core teeth portion short-circuited conducting sleeve is fine silver short-circuited conducting sleeve.
Described steam turbine generator is for run electromotor mutually late, and stator limit iron leg core teeth portion short-circuited conducting sleeve is fine copper short-circuited conducting sleeve.
This utility model compared with prior art has the effect that the short-circuited conducting sleeve of turbine generator stator end limit iron leg core and magnetic shield is effectively improved the servo effect of end edge iron leg core and magnetic shield, the weakening of parasitic leakage field axial to turbo-generator end can be realized, the stator end limit iron leg core local electric magnetic loss avoiding axial leakage magnetic flux to cause is high, heating is serious and thermal stress causes warpage and fracture, reduce the magnetic saturation degree of magnetic shield, improve the utilization ratio of magnetic shielding material, specifically facilitate brow leakage seriously interference to motor electricity-magnetic-hot property when solving Generation in Leading Phase Operation, improve generator operation Stability and dependability.On the other hand; the short-circuited conducting sleeve of turbine generator stator end limit of the present invention iron leg core and magnetic shield is except improving the strong property of military service of limit iron leg core and magnetic shield; additionally aid protection other structural members of generator end; the eddy-current loss of other hardwares near reduction generator stator end limit iron leg core and magnetic shield, the entirety improving generator end stator region resists the ability of axial leakage field.
Accompanying drawing explanation
Fig. 1 is the short-circuited conducting sleeve installation diagram of turbine generator stator end limit iron leg core and magnetic shield；
Fig. 2 is the overall structure schematic diagram of turbine generator stator end limit iron leg core and short-circuited conducting sleeve thereof；
Fig. 3 is turbine generator stator end limit section iron core teeth central through hole structural representation；
Fig. 4 is the winding structure of turbine generator stator end limit iron leg core short-circuited conducting sleeve；
Fig. 5 is hollow stand alone type magnetic shield short-circuit ring structure schematic diagram；
Fig. 6 is the integrated form magnetic shield short-circuit ring structure schematic diagram of ring ladder type.
Detailed description of the invention
Embodiment one: the turbine generator stator end limit iron leg core of present embodiment and magnet shielding structure, as depicted in figs. 1 and 2, bolt group including the distribution of stator limit iron leg core 1, magnetic shield 2, stator limit iron leg core teeth portion short-circuited conducting sleeve 3, magnetic shield short-circuited conducting sleeve 4, end end finger 5 and some annular arrays, it is set with stator limit iron leg core teeth portion short-circuited conducting sleeve 3 on each stator tooth 6 of stator limit iron leg core 1, magnetic shield short-circuited conducting sleeve 4 is set between magnetic shield 2；Stator limit iron leg core teeth portion short-circuited conducting sleeve 3 uses the metal material of high conductivity to make.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the suit direction of stator limit iron leg core teeth portion short-circuited conducting sleeve 3 is footpath-incisal plane, and stator limit iron leg core teeth portion short-circuited conducting sleeve 3 opening is with axially vertical；Stator limit iron leg core teeth portion short-circuited conducting sleeve 3 at the tooth top 7 of the stator tooth 6 of stator limit iron leg core 1 through the left side wall 8 of stator tooth 6 through the stator tooth central through hole 9 right side wall 10 wraparound from stator tooth 6, form closed-loop path, axially leakage field inductive loop in stator limit iron leg core teeth portion short-circuited conducting sleeve 3, realizes weakening the axial leakage magnetic flux near the iron leg core of stator limit further.
Described magnetic shield short-circuited conducting sleeve, as Fig. 1, Fig. 5 and Fig. 6 understand, the laying direction of magnetic shield short-circuited conducting sleeve 4 is footpath-incisal plane, magnetic shield short-circuited conducting sleeve 4 opening is with axially vertical, described bolt group includes four bolts 11, magnetic shield short-circuited conducting sleeve 4 is sleeved between four bolts 11, bolt 11 also compressed by magnetic shield short-circuited conducting sleeve 4 while magnetic shield 2 being fixed on end end finger 5, it is achieved fix magnetic shield short-circuited conducting sleeve；Magnetic shield short-circuited conducting sleeve 4 is in axial direction set to 2 to 3 groups, and the shape of each group of magnetic shield short-circuited conducting sleeve 4 is identical, and the projected position that each group of magnetic shield short-circuited conducting sleeve 4 is in footpath-incisal plane is identical.
Described turbine generator stator end limit iron leg core and the short-circuited conducting sleeve of magnetic shield, see Fig. 1 to understand, when Generation in Leading Phase Operation, described stator limit iron leg core teeth portion short-circuited conducting sleeve 3 uses fine silver material, improve stator limit iron leg core teeth portion short-circuited conducting sleeve and weaken the ability of axial leakage field, when electromotor runs mutually, stator limit iron leg core teeth portion short-circuited conducting sleeve 3 uses pure copper material.
As it is shown in figure 5, described magnetic shield short-circuited conducting sleeve is many group hollow stand alone type magnetic shield short-circuited conducting sleeve 4-1.
Embodiment two, the present embodiment are the integrated form magnetic shield short-circuited conducting sleeve 4-2 that magnetic shield short-circuited conducting sleeve is one group of ring ladder type, as shown in Figure 6 with the difference of embodiment one.
Although disclosed embodiment is as above, but its content is only to facilitate the embodiment that understands technical scheme and use, is not intended to limit the present invention.Technical staff in any the technical field of the invention; on the premise of without departing from disclosed core technology scheme; any amendment and change can be made in the form implemented and details; but the protection domain that the present invention is limited, still must limit in the range of standard with appending claims.
Claims (9)
1. turbine generator stator end limit iron leg core and magnet shielding structure, bolt group including the distribution of the stator limit iron leg core installed the most successively, end end finger, some magnetic shields and some annular arrays, it is characterized in that: the stator tooth of described stator limit iron leg core is provided with stator limit iron leg core teeth portion short-circuited conducting sleeve, it is provided with magnetic shield short-circuited conducting sleeve, described magnetic shield and magnetic shield short-circuited conducting sleeve between adjacent two magnetic shields to be connected by bolt group and end end finger are fixing.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 1, it is characterized in that: the end of described stator tooth is provided with the through hole that left and right is through, stator limit iron leg core teeth portion short-circuited conducting sleeve includes connecting portion and kink, described connecting portion is placed in through hole, and kink is connected with connecting portion after bending along stator tooth external shape and forms closed-loop path.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 1, it is characterised in that: if described bolt group includes that bolt stem, magnetic shield short-circuited conducting sleeve are set in the outside of bolt group.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 3, it is characterised in that: it is interconnected to constitute integral structure between adjacent two magnetic shield short-circuited conducting sleeves.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 4, it is characterised in that: the coupling part between described adjacent two magnetic shield short-circuited conducting sleeves is polygonal annular.
6. according to turbine generator stator end limit iron leg core and magnet shielding structure described in claim 3 or claim 4, it is characterised in that: include between adjacent two magnetic shields that some groups of shapes are identical and along the axial arranged magnetic shield short-circuited conducting sleeve of bolt.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 1, it is characterised in that: described stator limit iron leg core teeth portion short-circuited conducting sleeve is high conductivity metal short-circuited conducting sleeve.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 7, it is characterised in that: described steam turbine generator is leading phase operation electromotor, and stator limit iron leg core teeth portion short-circuited conducting sleeve is fine silver short-circuited conducting sleeve.
Turbine generator stator end limit iron leg core and magnet shielding structure the most according to claim 7, it is characterised in that: described steam turbine generator is for run electromotor mutually late, and stator limit iron leg core teeth portion short-circuited conducting sleeve is fine copper short-circuited conducting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296843.5U CN205453320U (en) | 2016-04-11 | 2016-04-11 | Turbo generator stator tip limit iron leg core and magnetism shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296843.5U CN205453320U (en) | 2016-04-11 | 2016-04-11 | Turbo generator stator tip limit iron leg core and magnetism shielding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453320U true CN205453320U (en) | 2016-08-10 |
Family
ID=56607397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296843.5U Expired - Fee Related CN205453320U (en) | 2016-04-11 | 2016-04-11 | Turbo generator stator tip limit iron leg core and magnetism shielding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718135A (en) * | 2018-07-02 | 2018-10-30 | 哈尔滨理工大学 | The large-scale phase modifier stator end integration series connection internal water cooling circulatory system and aeration structure |
-
2016
- 2016-04-11 CN CN201620296843.5U patent/CN205453320U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718135A (en) * | 2018-07-02 | 2018-10-30 | 哈尔滨理工大学 | The large-scale phase modifier stator end integration series connection internal water cooling circulatory system and aeration structure |
| CN108718135B (en) * | 2018-07-02 | 2019-04-30 | 哈尔滨理工大学 | The large-scale phase modifier stator end integration series connection internal water cooling circulatory system and aeration structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9006918B2 (en) | Wind turbine | |
| CN105186790B (en) | The turbo-generator end diameter of axle cuts the magnetic shielding device of multidirectional evacuation leakage field | |
| CN104113173A (en) | Double-stator single-winding vernier permanent magnet motor | |
| CN205453320U (en) | Turbo generator stator tip limit iron leg core and magnetism shielding structure | |
| CN103545963A (en) | Stator end electric shielding structure of synchronous generator | |
| KR20150095819A (en) | A transformer high voltage coil assembly | |
| CN105720745A (en) | End part magnetic conductive structure of steam turbine generator stator | |
| US9979248B2 (en) | Short circuit fault tolerant permanent magnet machine | |
| CN205681245U (en) | Rotor of steam turbo generator end self-cooled rotates magnetic bridge | |
| US10177621B2 (en) | Rotating electric machine or wind power generation system | |
| CN209293967U (en) | Bracket, wind-driven generator and wind power generating set for wind-driven generator | |
| CN208386303U (en) | A kind of motor insulated ring and motor | |
| US9194373B2 (en) | Air cooling of wind turbine generator | |
| CN208386264U (en) | Speed permanent magnet synchronous motor rotor, motor | |
| CN207800297U (en) | A kind of minitype high voltage isolating transformer | |
| JP2011142218A (en) | Single-phase transformer and distribution system using the same | |
| CN109861422A (en) | A kind of novel rotor applied to high-speed permanent magnet motor | |
| EP3352336A1 (en) | Rotary electric machine and wind power generation system | |
| KR101843456B1 (en) | Synchronous generator | |
| CN104979963A (en) | Passive fault current limiter for wind power applications | |
| CN106602756B (en) | Axial rotation converter for three-phase iron core type wireless energy transmission | |
| CN202093957U (en) | Suspended C-stage stereoscopic wound core dry-type transformer coil | |
| JP5317930B2 (en) | Static induction machine | |
| CN106100243B (en) | A kind of rotor of large turbo-type generator end self-cooled rotation magnetic bridge | |
| CN106655555B (en) | Radial rotary converter for three-phase iron core type wireless energy transmission |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170411 |