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Turbine assembling method, turbine assembling auxiliary system, and recording medium

一种涡轮机组、辅助系统的技术，应用在机器/发动机、通用控制系统、控制/调节系统等方向，能够解决降低静止体精度、影响涡轮机的定期检查作业期间、螺栓大等问题，达到缩短组装期间的效果

Active Publication Date: 2018-11-02
MITSUBISHI POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the bolts connecting the upper and lower half compartments are very large and difficult to cool
Therefore, in the methods of Patent Documents 1 and 2, it is necessary to ensure a long period of time when temporarily assembling the cabin, which greatly affects the period of work such as periodic inspection of the turbine.
In addition, when the work period is determined in advance, it may cause pressure on other processes
In addition, in the methods of Patent Documents 1 and 2, the measurement accuracy of the movement amount of the stationary body may vary due to the difference in the skill level of the surveyors, which may reduce the accuracy of the position adjustment of the stationary body, and it is difficult to apply to small turbines. Waiting for the surveyors inaccessible to the turbine

Method used

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  • Turbine assembling method, turbine assembling auxiliary system, and recording medium
  • Turbine assembling method, turbine assembling auxiliary system, and recording medium
  • Turbine assembling method, turbine assembling auxiliary system, and recording medium

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0027] (structure)

[0028] 1. Turbine

[0029] figure 1 is a perspective view showing the lower half of a steam turbine to which the assembly method according to this embodiment can be applied, figure 2 is a longitudinal sectional view showing a steam turbine to which the assembly method according to this embodiment can be applied, image 3 It is a side view showing the outer chamber of the steam turbine to which the assembly method according to this embodiment can be applied, Figure 4 yes image 3 The arrow profile of the arrow IV-IV line.

[0030] Such as figure 1 , 2 As shown, a steam turbine 101 according to this embodiment includes an outer cabin 1 supported by a frame 100 , an inner cabin 2 housed inside the outer cabin 1 , and a turbine rotor 3 enclosed in the inner cabin 2 . The load of the turbine rotor 3 is supported, for example, by a stand 100 .

[0031] Such as Figure 1~4 As shown, the outer cabin 1 is divided up and down by a horizontal plane (a plan...

no. 2 Embodiment approach ＞

[0104] Figure 9 It is a flowchart showing the flow of the assembly method according to this embodiment. exist Figure 9 in, right with Figure 6 In the shown flowcharts, the same steps are attached with the same symbols, and explanations thereof are appropriately omitted. Hereinafter, the assembly method according to this embodiment will be described.

[0105] The turbine assembly method according to the present embodiment is different from the turbine assembly method according to the first embodiment in that it further includes step P0. In addition, it is the same as the method of assembling the turbine according to the first embodiment.

[0106] · Step P0

[0107] The measurement data of the shapes of the upper half cabin and the lower half cabin during manufacture are acquired, and the acquired measurement data of the shapes of the upper half cabin and the lower half cabin during manufacture are reflected in the turbine model. Specifically, the flow of obtaining the ...

no. 3 Embodiment approach ＞

[0113] Figure 10 It is a flowchart showing the flow of the assembly method according to this embodiment. exist Figure 10 in, right with Figure 9 In the shown flowcharts, the same steps are attached with the same symbols, and explanations thereof are appropriately omitted. Hereinafter, the assembly method according to this embodiment will be described.

[0114] This embodiment is suitable for installation of steam turbines at the time of construction of a power plant equipped with steam turbines. Specifically, the assembling method according to the present embodiment differs from the assembling method according to the second embodiment in that step B1a is provided instead of step B1, and step P1a is provided instead of step P1. In addition, it is the same as the assembly method concerning 2nd Embodiment.

[0115] · Step B1a

[0116] The lower half of the outer compartment 11, the lower half of the inner compartment 21 and the bearings are provided. Specifically, the l...

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Abstract

The invention is directed to maintaining the accuracy in the positional adjustment of a stationary part while shortening a turbine assembly period through the omission of the temporary assembly of a casing. A assembling method includes gaining measurement data on the configuration of a casing upper half part not fastened to a casing lower half part; gaining measurement data on the configuration ofthe casing lower half part in an open state in which the casing upper half part and a rotor are removed and in which a stationary part is mounted; comparing measurement data on the configuration of the casing upper half part and the casing lower half part with simulation data on the configuration of the casing upper half part and the casing lower half part previously obtained to select simulationdata closest to the measurement data on the configuration of the casing upper half part and the casing lower half part; calculating, based on the selected simulation data, a change amount of the configuration of the casing upper half part and the casing lower half part when the casing upper half part is fastened to the casing lower half part in the open state; and adjusting the installation position of the stationary part inside the casing taking into account the calculated change amount.

Description

technical field [0001] The present invention relates to a turbomachine assembly method, a turbomachine assembly auxiliary system, and a recording medium. Background technique [0002] In general, a turbine cabin (inner and outer cabins) is divided into a half-shape upper half and a lower half, and is configured as a flange portion connecting the upper half and the lower half with bolts. A turbine rotor constituting a rotating body is accommodated in the chamber, and the turbine rotor rotates with respect to a diaphragm or the like constituting a stationary body or a stationary body. [0003] There is a gap (gap) between the rotating body and the stationary body covering the rotating body, and a part of steam (working fluid) can pass through the gap. Thus, in this specification, the fluid which passes through the gap between a rotating body and the stationary body opposed to it is called "leakage fluid" suitably. Providing the sealing portion on the opposing surface between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20F01D21/003F01D25/26F05D2260/81F01D25/285F01D25/243G01B21/32F05D2230/60F05D2220/31F05D2240/14F05D2240/24G05B19/4097G05B2219/32359G05B2219/35134G05B2219/45055
Inventor 八代醍健志小寺寿一水见俊介石桥光司
Owner MITSUBISHI POWER LTD
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