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Nuclear power station steam turbine generator spring assembly maintenance device

A technology for a steam turbine generator and a spring assembly, which is applied in the field of repairing devices for a steam turbine generator spring assembly in a nuclear power plant, can solve the problems such as the unreachable area of ​​the jacking screw hole, the inability to remove the windshield, and the inability to maintain the spring assembly, and achieves a high level of improvement. The strength of the jacking force and the effect of preventing the expansion of failures

Pending Publication Date: 2022-01-28
JIANGSU NUCLEAR POWER CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a maintenance device for the spring assembly of a nuclear power plant turbogenerator, which solves the problems that the windshield cannot be removed due to structural limitations in some areas, the top screw hole area is not accessible, and the spring assembly cannot be repaired

Method used

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  • Nuclear power station steam turbine generator spring assembly maintenance device
  • Nuclear power station steam turbine generator spring assembly maintenance device
  • Nuclear power station steam turbine generator spring assembly maintenance device

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, not all of them. Based on the embodiments described in this application, all other embodiments obtained by those skilled in the art without creative efforts are within the protection scope of this application.

[0053] The inventors of the present application found in research that to deal with the failure of the spring assembly of the turbogenerator, the spring assembly needs to be removed for repair. The traditional disassembly process is to remove the windshield on the back of the spring assembly, and use the jackscrew to lift the spring to release its elastic performance. However...

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Abstract

The invention belongs to the field of generator maintenance, and particularly relates to a nuclear power station steam turbine generator spring assembly maintenance device which comprises a power mechanism and a jacking and extending mechanism. The power mechanism is connected with the jacking and extending mechanism and used for driving the jacking and extending mechanism to act. And the jacking and extending mechanism is detachably arranged in a gap among the spring assembly, the fixed guide block and the fixed mounting seat, and is used for applying an acting force to the spring assembly under the driving of the power mechanism, so that the spring assembly extends straightly under the acting force applied by the jacking and extending mechanism. According to the technical scheme, the spring assembly and the plate spring guide block are used for side space jacking and extending, the space limitation of a generator stator structure is avoided, the technical problem that a jackscrew area of a part of the spring assembly in a traditional process cannot be reached and cannot be disassembled is solved, and the technical effect of comprehensively overhauling the spring assembly of the type is achieved.

Description

technical field [0001] The application belongs to the field of generator maintenance, and in particular relates to a maintenance device for a spring assembly of a turbogenerator in a nuclear power plant. Background technique [0002] During the operation of the generator, due to the interaction between the stator winding current and the end leakage magnetic field, a large double frequency (100Hz) vibration force will be generated. Therefore, a spring assembly structure is designed at the end of the stator of the generator to buffer and release the vibration stress between the stator pressure ring, cone ring and other components. [0003] Due to the inherent design and manufacturing defects of the turbogenerator, the natural frequency of the elliptical vibration mode at the end of the stator is unqualified when it leaves the factory. , and the corresponding mode shape is elliptical, then the end winding will generate resonance or larger vibration under the excitation of elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/16F15B11/028B66F3/46B66F3/42F01D15/10H02K15/00
CPCF15B11/16F15B11/028B66F3/46B66F3/42F01D15/10H02K15/0006
Inventor 莫晶晶邹晓王欣高威申雁鹏张煦柳潇吴志强毛金福胡明
Owner JIANGSU NUCLEAR POWER CORP
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