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Method for mounting condensing steam turbines

An installation method and steam turbine technology, applied to mechanical equipment, engine components, machines/engines, etc., can solve problems such as rework and low efficiency of installation precision adjustment, and achieve the effect of ensuring the installation period, eliminating rework, and reducing labor efficiency

Active Publication Date: 2017-01-04
SHANGHAI ERSHIYE CONSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the traditional installation process of steam turbines, there are problems of rework and low efficiency of installation accuracy adjustment

Method used

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  • Method for mounting condensing steam turbines

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Embodiment Construction

[0046] The present invention is further illustrated below by specific examples.

[0047] Such asfigure 1 as shown in figure 1 As shown, the installation method of the condensing steam turbine includes the following steps:

[0048] Step 1. Embedding the multi-functional permanent center mark and reference point: effectively preventing the hidden danger of in-situ rotation and movement of the center mark and reference point after they are buried. Therefore, the measurement error caused by the measurement standard is reduced, and the accuracy of the measurement standard is ensured. It can realize the minimization of datum measurement error caused by embedding of datum point and central target plate.

[0049] Step 2. In the setting of supporting shims and foundation cleaning, the multi-point support fine-tuning method is used to adjust the steam turbine. It is necessary to arrange the shims according to the layout of the anchor bolts in the drawing. A set of shims is set on both...

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Abstract

The invention particularly discloses a method for mounting condensing steam turbines. The method is characterized by comprising embedding multifunctional permanent central standard plates and reference points; arranging support sizing blocks and cleaning foundations; mounting front and rear seat frames; mounting lower steam cylinders; mounting stators of power generators and bearing blocks; checking, cleaning and assembling the insides of the steam turbines and centering the steam turbines; finding up-rising inclination of rotors of the steam turbines and adjusting internal clearance of the steam turbines; mounting upper steam cylinders; assembling large covers of the steam turbines by means of fastening. The method has the advantages that reference measurement errors due to reference point and central standard plate embedding can be minimized; environmental influence on the labor efficiency when the steam cylinders are centered can be reduced; the accuracy of clearance between impellers and steam seals can be guaranteed; the mounting quality can be guaranteed by quality pre-control processes, accordingly, reworking phenomena can be completely eradicated, work can be effectively carried out at one step, the labor productivity can be improved, and the mounting construction periods can be guaranteed; the purpose of carrying out successful trial run at one step can be achieved, and excellent technical and economical effects can be realized.

Description

technical field [0001] The invention relates to the construction field of installation of a condensing steam turbine, in particular to an installation method of a condensing steam turbine. Background technique [0002] The steam turbine unit mainly includes steam turbine body equipment, steam system equipment, condensate water system equipment, water supply system equipment and other auxiliary equipment. The steam turbine body equipment mainly includes cylinders, nozzle groups, baffles, baffle sleeves, steam seals, bearings and fasteners, cascades, impellers, main shafts, couplings, cranks, thrust plates, emergency safety devices, etc. The condensing steam turbine unit is one of the core equipment in the waste-to-energy project, and the installation quality of the steam turbine and generator is one of the important guarantees for the safe and economical operation of the waste-to-energy project. Therefore, the installation quality of steam turbines and generators is particul...

Claims

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Application Information

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IPC IPC(8): F01D15/10F01D25/28
CPCF01D15/10F01D25/285
Inventor 赵敏芹张小华余淑昌万赤钢王佳
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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