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Technical method for installing steam turbine generator stator slot wedge by hydraulic power

A turbo-generator and hydraulic power technology, which is applied in the manufacture of electric generators, stator/rotor bodies, electrical components, etc., can solve hidden dangers, the impact force is greatly affected by human factors, and the hand hammer hits the generator stator Quality and other issues, to achieve the effect of eliminating hammer damage, eliminating quality risks, and reducing quality risks

Inactive Publication Date: 2019-02-15
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages are: 1. The impact force of slot wedge and inclined wedge is greatly affected by human factors, and the impact force is uncontrollable
It is not conducive to the cleaning of the stator slot of the generator
3. The operator may hit the hammer on the stator of the generator by misoperation, causing quality problems

Method used

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  • Technical method for installing steam turbine generator stator slot wedge by hydraulic power
  • Technical method for installing steam turbine generator stator slot wedge by hydraulic power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Such as figure 1 Shown, the process method of using hydraulic power to install the stator slot wedge of a large steam turbine generator

[0024] 1) This installation method is aimed at the structure with the opposite diagonal wedge 2 under the stator slot wedge 1;

[0025] 2) Preparations before assembly of stator slot wedge 1: After installing the spacer 3 under the stator slot wedge 1 in place as required, place the stator slot wedge 1 at the predetermined installation position of the stator core 10, and the stator slot wedge 1 is used for fixing The inclined wedge 2 is inserted under the slot wedge 1 manually, and the distance from the actual required installation position is between 10 and 15 mm. This distance is used as the tightening stroke of the hydraulic jack 6;

[0026] 3) Such as figure 2 As shown, screw the end thread of the hydraulic jack 6 into the fixed block 5, screw the wedge 2 to the top block 4 on the internal thread of the hydraulic jack 6 pillar, and cla...

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PUM

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Abstract

The invention relates to a technical method for installing a large steam turbine generator stator slot wedge by hydraulic power. Through a hydraulic tool, supporting force is applied to a tapered wedge under a stator slot wedge, and the problems generated by assembling the large steam turbine generator stator slot wedge with a traditional method that the hitting power of the slot wedge and the tapered wedge is greatly affected by manual influence factors, hitting power is uncontrollable and more plate hitting fragments are generated in a hitting process can be solved. The traditional method isunfavorable for cleaning the inner part of a generator stator slot, and the misoperation of operation personnel may knock the generator stator with a hammer to cause potential quality hazards. By useof the technical method disclosed by the invention, the operation efficiency of operators is improved, and quality risks are lowered.

Description

Technical field [0001] The invention relates to a process method for installing a large steam turbine generator stator slot wedge using hydraulic power. Background technique [0002] In the past, large-scale turbo-generator rotor slot wedges were assembled using a plate-tightening process. After pre-installing the underlaying strips and the diagonal wedges of the stator slot wedges, a punching board made of epoxy glass cloth is used to contact the protruding ends of the diagonal wedges. The impact force of the hand hammer is transmitted to the diagonal wedge by hitting the board with the hand hammer. The main disadvantages are as follows: 1. The impact force of slot wedge and diagonal wedge is affected by human factors, and the impact force is uncontrollable. 2. A lot of chipping debris is produced during the strike. It is not conducive to cleaning in the generator stator slot. 3. The misoperation of the operator may knock the hand hammer on the generator stator and cause qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02
CPCH02K15/026
Inventor 王力强安华刘瑜史博勋季聪
Owner HARBIN ELECTRIC MASCH CO LTD
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