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Hoisting method of machine set generator stator and special mechanism thereof

A technology of generator stator and hoisting method is applied in the direction of spring mechanism, crane, hoisting device, etc., which can solve the problems of high cost and long hoisting cycle, and achieve the effect of short operation period, simple layout and safe hoisting operation.

Inactive Publication Date: 2013-10-02
GUANGDONG POWER ENG
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to solve the problem of long hoisting period and high cost of the traditional 300MW or above unit generator stator hoisting method, and to provide a two-purpose 80-ton crane configured by the main workshop, which can achieve a capacity of more than 160 tons. Hoisting Method for Stator Hoisting of 1-ton Generator

Method used

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  • Hoisting method of machine set generator stator and special mechanism thereof
  • Hoisting method of machine set generator stator and special mechanism thereof
  • Hoisting method of machine set generator stator and special mechanism thereof

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specific Embodiment 1

[0036] Such as figure 1 , figure 2 with image 3As shown, the special hoisting mechanism used for hoisting the generator stator of the unit mainly includes adding an auxiliary beam frame structure 2 and a hydraulic lifting device 3 on the basis of two 80-ton driving mechanisms 1 in the main workshop, wherein the driving mechanism 1 includes two The driving track 1-1 and two original trolleys 1-2; the auxiliary beam frame structure 2 includes several upper beams 2-1, several lower beams 2-2, several longitudinal beams 2-3 and at least one pole beam 2-4; Drive the two original trolleys 1-2 to one end of the driving track 1-1 respectively, and use the theodolite to lead the longitudinal centerline of the generator to the girder of the two driving cars. Based on this position, in each driving track 1- Two upper beams 2-1 are placed horizontally on 1, and the two ends of the upper beam 2-1 are placed on the two girders of each driving track 1-1 respectively, and are in movable c...

specific Embodiment 2

[0071] The characteristics of this embodiment are: a power plant uses the special hoisting mechanism and hoisting method for hoisting the stator of the unit generator of the present invention to successfully hoist the stator with an external dimension of 9.32m×3.64m×4m and a weight of 196t; Arrange two 80t cranes with a span of 25.3m; the stator is located on the 12.47m platform of the steam turbine operation floor.

[0072] Table 1 Stator hoisting load list

[0073]

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Abstract

The invention relates to a hoisting method of a machine set generator stator and a special mechanism thereof, which is characterized in that an assistant beam frame structure (2) is in bridge joint on two travelling crane rails (1-1) of two 80-ton travelling crane mechanisms (1) in a main factory, and a hydraulic pressure hoisting device (3) is arranged on the assistant beam frame structure (2); thus, the travelling crane rails change from one-point stress into multi-point stress or region stress so as to improve the anti-bending ability of the travelling crane rails. The invention dispenses with extra hanger frames, a girder of the travelling crane dispenses with re-hooping, and a dolly of the travelling crane dispenses with dissembling and is suitable for installation and stator maintaining and hoisting operations of 300MW-firepower machine set generator stators in China; the invention has the benefits of simple arrangement, short operation time, no need of deferred installation of the main factory structure and quick and safe hoisting operation.

Description

technical field [0001] The invention relates to a hoisting method and a special structure for the generator stator of a unit, and is suitable for hoisting the stator of a 2X300MW and above power plant unit. The utility model belongs to the technical field of generator stator hoisting. Background technique [0002] The smooth hoisting of the generator stator of the thermal power plant unit is the basis and key for the power plant unit to be put into operation and generate electricity. In the prior art, it is generally to utilize two 80-ton cranes provided in the main workshop of the power plant unit as the main equipment, and then cooperate with other auxiliary equipment to carry out the hoisting of the generator stator. However, only the two 80-ton cranes in the main workshop can only be used to hoist the stator less than 160 tons. For the hoisting operation of the stator of the thermal power plant with more than 160 tons, especially 300MW or more, the traditional hoisting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C17/26B66C17/20B66D1/08
Inventor 何伟权陈永成吴懿
Owner GUANGDONG POWER ENG
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