Vertical hydraulic turbine set shaft system adjusting method

A hydraulic turbine shaft and unit technology, which is applied in the direction of hydroelectric power generation, mechanical equipment, engine components, etc., can solve the problems of low safety and stability, excessive shaft swing, high labor intensity, etc., to solve the problem of excessive shaft swing, Ensure installation accuracy and improve installation quality

Inactive Publication Date: 2017-05-31
CHINA GEZHOUBA GRP MECHANICAL & ELECTRICAL CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for adjusting the shafting of a vertical water turbine unit, which can solve the problems of high labor intensity, long correction time, low safet

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  • Vertical hydraulic turbine set shaft system adjusting method
  • Vertical hydraulic turbine set shaft system adjusting method

Examples

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Example Embodiment

[0023] like figure 1 and 2 As shown in the figure, a method for adjusting the shafting of a vertical water turbine unit, the method includes the following steps:

[0024] Step 1: Hoist the turbine shaft 2 of the vertical turbine unit into the pit to connect with the runner, hoist the generator shaft 1 and the turbine shaft 2, pretighten all the connecting bolts according to the requirements of the drawings, and hoist the lower frame 9 and rotor , the installation of the thrust bearing is completed, the braking system and the high-pressure oil system have been put into use, the connection between the rotor and the generator shaft is completed, the force conversion of the rotating part is completed, and the center of the rotating part has been pushed to the center of the unit, that is, the unit is ready for cranking;

[0025] After the unit cranking is qualified, the first cranking is performed to check the shafting swing. If it is qualified, the follow-up work of the unit asse...

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Abstract

The invention discloses a vertical hydraulic turbine set shaft system adjusting method which includes the steps: firstly, pre-tightening all connecting bolts, firstly turning after a turbine set has turning conditions, and checking shaft system swing; secondly, building an annular working platform; thirdly, replacing and pre-tightening four tool bolts; fourthly, secondly turning; fifthly, thirdly turning, and checking whether the shaft system swing is qualified or not; sixthly, machining one set permanent connecting bolts; seventhly, installing and pre-tightening residual tool bolts; eighthly, boring; ninthly, fourthly turning to finish adjustment of a vertical hydraulic turbine set shaft system. The adjusting method can solve the problems of high labor intensity, long correction time, low safety and stability and the like and can also thoroughly solve the problem that shaft system swing exceeds standards, installing accuracy of the turbine set shaft system is effectively ensured, so that installing quality of the turbine set is improved.

Description

technical field [0001] The invention relates to the installation field of hydroelectric generating sets, in particular to a method for adjusting shafting of vertical hydroelectric generating sets. Background technique [0002] The shaft system of a vertical hydro-generator set is usually composed of five sections: the top shaft of the generator, the central body of the rotor, the shaft of the generator, the shaft of the turbine, and the runner. The turbine shaft and the lower end shaft of the generator are manufactured in different factories with the same mold, so the concentricity of the two shafts is not easy to be guaranteed. The shaft system is characterized by a large number of segments and many joint surfaces. The connection of the flanges of the axis is designed with pin bolts or bolts and pin sleeves. All positioning pin holes and pin sleeve holes are processed in the factory, and cannot Adjusting the relative positions of the components of the axis cannot effective...

Claims

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Application Information

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IPC IPC(8): F03B11/00
CPCF03B11/00Y02E10/20
Inventor 陈强李军徐海林卫书满
Owner CHINA GEZHOUBA GRP MECHANICAL & ELECTRICAL CONSTR
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