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Drawing method of gas turbine generator rotor in overhauling operation

A technology for generator rotors and gas turbines, which is used in the manufacture of motor generators, electromechanical devices, electrical components, etc., can solve problems such as low efficiency, affecting production and operation, and time-consuming and laborious extraction of generator rotors.

Inactive Publication Date: 2012-08-29
SHANGHAI BAOSTEEL EQUIP MAINTENANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to time-consuming and laborious extraction of the generator rotor, long maintenance cycle and low efficiency, which seriously affects the normal production and operation

Method used

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  • Drawing method of gas turbine generator rotor in overhauling operation
  • Drawing method of gas turbine generator rotor in overhauling operation
  • Drawing method of gas turbine generator rotor in overhauling operation

Examples

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Embodiment Construction

[0017] As shown in 3, the method for extracting the rotor of a gas turbine generator in the maintenance operation of the present invention includes a generator 1 and a gas compressor 3 connected to the generator 1, and the method includes the following steps:

[0018] Step 1. When the gas compressor 3 is disassembled for overhaul, all the components of the gas compressor 3 are disassembled and hoisted out, and the pipelines and electrical wiring connected to the generator 1 are all disconnected at the connection ends without dismantling ;

[0019] Step 2: Install several hydraulic jacks at the bottom of the generator 1 and lift the generator 1 as a whole until the outer diameter of the rotor 11 of the generator 1 exceeds the center height of the gas compressor 3;

[0020] Step 3: Pad a cushion block 5 bearing the weight of the generator 1 at the bottom of the lifted generator 1, so that the generator 1 sits on the cushion block 5 stably;

[0021] Step 4: Extract the rotor 11 ...

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Abstract

The invention discloses a drawing method of a gas turbine generator rotor in overhauling operation. According to the method, when a gas compressor is dismounted for overhauling, all components of the gas compressor are dismounted and hung out, pipelines connected with a generator and electric connecting wires are fully broken off at the connecting end, and the dismounting is not needed; the bottom of the generator is provided with a plurality of hydraulic jacks for integrally lifting the generator until the outer diameter of a generator rotor exceeds the center height of the gas compressor; the bottom of the lifted generator is padded and provided with a pad block for bearing the generator weight, so that the generator is stably seated on the pad block; and then, a standard process is adopted for drawing the generator rotor in the gas compressor direction, and a crane trolley in the production field is used for hanging and separating the rotor. The method has the advantages that the defects of the drawing operation of the traditional generator rotor are overcome, the time and the labor are saved in the drawing operation of the generator rotor, the overhauling operation period is reduced, the overhauling efficiency is improved, and the normal production operation of a unit is ensured.

Description

technical field [0001] The invention relates to a method for extracting a generator rotor, in particular to a method for extracting a gas turbine generator rotor in maintenance operations. Background technique [0002] The generator rotor extraction operation of the gas turbine generator set belongs to the large-scale motor core-pulling process, which is suitable for the regular disassembly maintenance of large-scale generators, so that the generator rotor is extracted from the stator, and the internal parts of the generator are inspected, replaced, cleaned, and tested. In order to ensure the functional state of the generator and ensure the normal operation of the generator. [0003] Such as figure 1 As shown, the axial arrangement of the gas turbine generator unit is different from that of a conventional power plant, and the generator 1 is arranged between the gas turbine 2 and the gas compressor 3 . Although this design can make the torque borne by each pair of back whee...

Claims

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Application Information

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IPC IPC(8): H02K15/00
Inventor 蒋广建
Owner SHANGHAI BAOSTEEL EQUIP MAINTENANCE CO LTD
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