CN101282065A - Method for installing generator rotor guard ring block type insulation barrel - Google Patents
Method for installing generator rotor guard ring block type insulation barrel Download PDFInfo
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- CN101282065A CN101282065A CNA2008100377017A CN200810037701A CN101282065A CN 101282065 A CN101282065 A CN 101282065A CN A2008100377017 A CNA2008100377017 A CN A2008100377017A CN 200810037701 A CN200810037701 A CN 200810037701A CN 101282065 A CN101282065 A CN 101282065A
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- insulating cylinder
- dds
- generator rotor
- generator
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Abstract
The invention relates to a generator rotor protective ring blocked type insulating cylinder structure, comprising a generator rotor insulating ring, a high strenghth epoxy glass cloth plate, a DDS plate compound four fluorine muslin delaine and an ebonite pin, which is characterized in that, when assembling the blocked type insulating cylinder, only the blocked type insulating cylinder is packaged on the rotor winding, the power plant is on-site exchanged without dismounting the coupling. The invention has advantages of high mechanical strength, good electric insulating performance, reliable operation while manufacturing, assembling or dismounting conveniently, can allow the coil freely telescopic and reduce the cost and the production cycle.
Description
Technical field
The present invention relates to a kind of method for installing generator rotor guard ring block type insulation barrel, belong to Coal,steam plant with FGD environmental protection and energy saving technical field.
Background technology
The insulation of generator amature retaining ring mainly plays two effects, i.e. carrying and electric insulation in generator operation.My company introduces the generator amature retaining ring insulation of US Westinghouse company's technology, is the integral type insulating cylinder that interior circle has the tetrafluoro glide lamella, and it not only has bearing capacity, heat resistance and electric insulation all to be better than conventional material, and the retaining ring that is in operation insulation is not broken.Circle is smooth in the more important thing is, coefficient of friction is very little, thereby in generator operation, particularly for starting, the frequent peak regulation unit of stopping transport, its end winding can more freely stretch, and can not be subjected to the obstruction of retaining ring insulating cylinder, and reduced owing to the flexible inconsistent thermal unbalance that causes of end winding, improved the reliability of unit.
But there are several problems in integral type retaining ring insulating cylinder:
Insulating cylinder processing and manufacturing complexity need be wrapped on the core rod during insulating cylinder coiling, and transporting to still needs processing excircles and seam on core rod after my company, so core rod will transportation back and forth between insulating cylinder manufactory and my company, very easily causes to produce to disconnect, and influences the cycle.And integral type retaining ring insulating cylinder, cover is bad easily when the cover retaining ring.
In addition, when power plant's site examining and repairing is dismantled retaining ring, then need change integral type retaining ring insulating cylinder, vapour end insulating cylinder particularly, because of being subjected to vapour end shaft coupling size impact, can't under the situation of not tearing shaft coupling open, retaining ring be deviate from rotor and change insulating cylinder, maintenance has been brought very big difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of transportation, overhaul method for installing generator rotor guard ring block type insulation barrel easily.
For realizing above purpose, technical scheme of the present invention provides a kind of method for installing generator rotor guard ring block type insulation barrel, it is characterized in that, adopts at least two retaining ring piecemeals to form insulating cylinder by the outside that the bakelite pin is installed in the rotor winding, and its method is:
The first step. the multiple tetrafluoro cotton of DDS plate is wrapped in the part of rotor winding outside; The high-strength epoxy glass-cloth board is wrapped in the multiple tetrafluoro cotton of DDS plate outside;
Second step. an end of the multiple tetrafluoro cotton of high-strength epoxy glass-cloth board and DDS plate is fixed on the cushion block of end with the bakelite pin, and another end plug and is enclosed within filler strip outside under the wedge under dead ring;
The 3rd step. last retaining ring hot jacket is in high-strength epoxy glass-cloth board and dead ring outside, and the sectional type insulating cylinder is formed the insulation against ground of generator amature, behind high-voltage holding test, guarantees the safe operation of generator;
The 4th step. wrap up other parts of rotor winding outside again by 1,2,3 steps, up to having wrapped up.
The present invention adopts inside and outside several layers of insulating cylinder, the wholecircle splicing, intersection stacks, leave piece, the piece position is in rotor body canine tooth part, every layer thickness is suitable, the multiple tetrafluoro face cloth glide lamella of innermost layer, notch place creepage distance in order to increase, stairstepping is processed at the notch place and the retaining ring dead ring matches going out filler strip under the wedge, and along the circumferential direction string is moving in order to avoid the sectional type insulating cylinder to be in operation, on the cushion block of the end of the axial outermost end of coil, beat dielectric pin, only need during the assembling of sectional type insulating cylinder it is wrapped on the rotor winding, power plant need not to tear open shaft coupling when changing at the scene, highlights its good manufacturability.
Advantage of the present invention is in easily manufactured, assembles easyly, reliable, greatly facilitates the manufacturing and the maintenance of generator amature, has reduced cost, has reduced the production cycle.
Description of drawings
Fig. 1 is a kind of method for installing generator rotor guard ring block type insulation barrel schematic diagram;
Fig. 2 is the generalized section after a kind of generator rotor guard ring block type insulation barrel installs.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be a kind of method for installing generator rotor guard ring block type insulation barrel schematic diagram, described a kind of method for installing generator rotor guard ring block type insulation barrel, adopt two retaining ring piecemeals 9 to form insulating cylinder by the outside that bakelite pin 4 is installed in rotor winding 6, described retaining ring piecemeal 9 by the multiple tetrafluoro cotton of retaining ring 1, high-strength epoxy glass-cloth board 2, DDS plate, promptly press close to the copper cash place one deck 3, bakelite pin 4, end cushion block,, filler strip 8 is formed under dead ring 7 and the wedge, and its installation method is:
The multiple tetrafluoro cotton 3 of DDS plate is wrapped in half of outside of rotor winding 6; High-strength epoxy glass-cloth board 2 is wrapped in multiple tetrafluoro cotton 3 outsides of DDS plate; One end of the multiple tetrafluoro cotton 3 of high-strength epoxy glass-cloth board 2 and DDS plate is fixed on the end cushion block 5 with bakelite pin 4, and another end plug is dead ring 7 times, and is enclosed within filler strip 8 outsides under the wedge; Last retaining ring hot jacket is in high-strength epoxy glass-cloth board 2 and dead ring 7 outsides, wrap up second half of rotor winding 6 outsides again by the step of front, up to having wrapped up, as shown in Figure 2, be the generalized section of a kind of generator rotor guard ring block type insulation barrel after installing, two retaining ring piecemeals 9 are formed the insulation against ground of generator amature mutually with encircling, behind high-voltage holding test, guarantee the safe operation of generator.
Claims (1)
1. a method for installing generator rotor guard ring block type insulation barrel is characterized in that, adopts at least two retaining ring piecemeals (9) to form insulating cylinder by the outside that bakelite pin (4) is installed in rotor winding (6), and its method is:
The first step. the multiple tetrafluoro cotton (3) of DDS plate is wrapped in the part of rotor winding (6) outside; High-strength epoxy glass-cloth board (2) is wrapped in the multiple tetrafluoro cotton (3) of DDS plate outside;
Second step. an end of the multiple tetrafluoro cotton (3) of high-strength epoxy glass-cloth board (2) and DDS plate is fixed on the end cushion block (5) with bakelite pin (4), and another end plug and is enclosed within outside the filler strip under the wedge (8) under dead ring (7);
The 3rd step. last retaining ring (1) hot jacket is in high-strength epoxy glass-cloth board (2) and dead ring (7) outside, and the sectional type insulating cylinder is formed the insulation against ground of generator amature, behind high-voltage holding test, guarantees the safe operation of generator;
The 4th step. wrap up other parts of rotor winding (6) outside again by 1,2,3 steps, up to having wrapped up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100377017A CN101282065B (en) | 2008-05-20 | 2008-05-20 | Method for installing generator rotor guard ring block type insulation barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100377017A CN101282065B (en) | 2008-05-20 | 2008-05-20 | Method for installing generator rotor guard ring block type insulation barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101282065A true CN101282065A (en) | 2008-10-08 |
| CN101282065B CN101282065B (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100377017A Active CN101282065B (en) | 2008-05-20 | 2008-05-20 | Method for installing generator rotor guard ring block type insulation barrel |
Country Status (1)
| Country | Link |
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| CN (1) | CN101282065B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337925A (en) * | 2013-07-18 | 2013-10-02 | 湘潭电机股份有限公司 | Insulating structure for end parts of rotor coils and motor |
| CN103368290A (en) * | 2012-03-26 | 2013-10-23 | 阿尔斯通技术有限公司 | Rotor for electric machine |
| CN103580348A (en) * | 2013-11-12 | 2014-02-12 | 中电电机股份有限公司 | Support structure for combined cushion block of coils at rotor end of steam turbine generator |
| CN114421722A (en) * | 2022-01-24 | 2022-04-29 | 东方电气集团东方电机有限公司 | Machining and manufacturing process of rotor coil end forming tool |
-
2008
- 2008-05-20 CN CN2008100377017A patent/CN101282065B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368290A (en) * | 2012-03-26 | 2013-10-23 | 阿尔斯通技术有限公司 | Rotor for electric machine |
| CN103337925A (en) * | 2013-07-18 | 2013-10-02 | 湘潭电机股份有限公司 | Insulating structure for end parts of rotor coils and motor |
| CN103337925B (en) * | 2013-07-18 | 2015-09-02 | 湘潭电机股份有限公司 | A kind of rotor coil ends insulation system and motor |
| CN103580348A (en) * | 2013-11-12 | 2014-02-12 | 中电电机股份有限公司 | Support structure for combined cushion block of coils at rotor end of steam turbine generator |
| CN103580348B (en) * | 2013-11-12 | 2016-04-13 | 中电电机股份有限公司 | Rotor of steam turbo generator end coil combined pad supporting construction |
| CN114421722A (en) * | 2022-01-24 | 2022-04-29 | 东方电气集团东方电机有限公司 | Machining and manufacturing process of rotor coil end forming tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101282065B (en) | 2012-01-25 |
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