Steam turbine generator stator end nose end loosening treatment process method

A steam turbine generator and stator end technology, which is used in the manufacture of motor generators, electric components, electromechanical devices, etc., can solve the problems of loose ends of stator coils, and achieve the effect of reducing the repair workload and shortening the repair period.

Active Publication Date: 2021-06-15
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] When the stator of the turbogenerator is running on site, the problem of looseness of the end of the stator coil often occurs

Method used

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  • Steam turbine generator stator end nose end loosening treatment process method
  • Steam turbine generator stator end nose end loosening treatment process method

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] 1) if figure 1 with figure 2 As shown, a comprehensive inspection of the stator end 1 is carried out, and it is determined that the notch area 7 and the involute area 8 of the stator end 1 are not loose, including between the stator coil 5 and the insulating cone ring 3, between the stator coil 5 itself, and the stator Between the coil 5 and the insulating fixing ring 4, it is determined that only the nose end 2 is loose, including the nose end conformable material 6 between the stator coil 5 nose end 2 and the insulating cone ring 3, and between the stator coil 5 and the insulating fixing ring 4 ;

[0025] 2) if figure 2 As shown, remove the insulating fixing ring 4 that fixes the inner diameter position of the stator coil 5 nose end 2, and remove the conformable material between the fixed stator coil 5 nose end 2 outer diameter po...

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Abstract

The invention discloses a steam turbine generator stator end nose end loosening treatment process method, and aims to solve the problem that a stator end notch outlet region and an involute region are not loosened but a nose end is seriously loosened during field operation of a steam turbine generator with an insulating conical ring structure. By adopting the process method for only treating the nose end position, the repair range is reduced, and economic and practical effects are good.

Description

technical field [0001] The invention relates to the field of turbogenerators, in particular to a process method for treating loose nose ends of stator ends of turbogenerators. Background technique [0002] When the stator of the turbogenerator is running on site, the problem of loose ends of the stator coil often occurs. In most cases, the stator coil ends are loose in the involute area and the notch area, but in rare cases, only the stator coil nose is loose. [0003] When the ends of the stator coils are loose, the repair plan adopted in the industry is basically to remove all the stator coils, and then reassemble the stator coils. During the process of reassembling the stator coils, the noses of all ends conform to the shape The materials are re-dipped and matted and cured, so that the stator ends are re-fixed into one piece and the problem of stator end looseness is eliminated. Contents of the invention [0004] The purpose of the present invention is to provide a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00H02K15/12
CPCH02K15/0043H02K15/12
Inventor 王永春李津剑轩秋月尹璐张晓龙刘昱光刘俊英
Owner HARBIN ELECTRIC MASCH CO LTD
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