Construction method of pre assembling of water guide mechanism with participation of runner

A construction method and water guiding mechanism technology, which is applied in the field of pre-installation of water guiding mechanism with runners, can solve problems such as complicated procedures and long construction period, and achieve the effects of optimizing construction procedures, improving construction efficiency, and improving installation accuracy

Active Publication Date: 2018-05-11
SINOHYDRO BUREAU 5
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the process is quite complicated and the construction period is relatively long.

Method used

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  • Construction method of pre assembling of water guide mechanism with participation of runner
  • Construction method of pre assembling of water guide mechanism with participation of runner
  • Construction method of pre assembling of water guide mechanism with participation of runner

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. A construction method for the pre-installation of a runner participating in a water guiding mechanism. Place the wedge plate 13 on the lower plane of the anti-leakage ring 11, and then hoist the pre-assembled runner 2 into the machine pit and place it on the wedge plate 13; Step 2: Adjust the center of the runner 2 by pushing the method, and fix it with the wedge plate 13 The center position of the runner 2; Step 3: Hoist the top cover 3 into the machine pit for assembly. After the assembly is completed, hang the top cover 3 as a whole, hoist it into the movable guide vanes participating in pre-installation, and then put down the top cover 3 for pre-installation ; Step 4: Adjust the center of the top cover 3 by measuring the gap between the leak-proof ring 11 on the top cover in the symmetrical direction and the labyrinth ring 21 on the ...

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PUM

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Abstract

The invention discloses a construction method of pre assembling of a water guide mechanism with participation of a runner. The method comprises: a bottom ring and a lower leakage-stopping ring are installed, a wedge plate is placed on a lower plane of the lower leakage-stopping ring, and a runner participating in pre assembling is hoisted into a pit and is placed on the wedge plate; the center ofthe runner is adjusted by using an incremental launching method and the center of the runner is fixed by the wedge plate; a top cover is hoisted into the pit in a sectioning manner for assembling, theoverall top cover is suspended after assembling completion, a moving guide blade participating in pre assembling is hoisted, and then the top cover is put down for pre assembling; and the center of the top cover is adjusted by measuring a clearance value between the leakage-stopping ring on the top cover and a labyrinth ring on the runner, so that the concentricity of shaft holes of the top coverand the bottom ring is adjusted to meet the requirement. According to the invention, secondary splicing of the top cover is avoided while the construction quality is ensured; pre assembling of the water guide mechanism and a lower rack of a generator can be carried out synchronously; the construction process is optimized; the resource investment is reduced; the construction period is shortened; and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of installation of hydropower station equipment, in particular to a construction method for runners to participate in the pre-installation of a water guiding mechanism. Background technique [0002] In the installation work of the water guide mechanism of the large-scale pumped storage power station, the water guide mechanism is mainly composed of the bottom ring, movable guide vane, top cover, guide vane operating mechanism and accessories. The conventional construction method is to remove the top cover after the bottom ring, movable guide vane and top cover are pre-installed, then hoist the runner into the machine pit, and finally carry out the reassembly of the water guide mechanism. The center of each component is measured by hanging the piano wire with an inner diameter micrometer based on the following anti-leakage ring. [0003] The inner diameter of the upper section of the pit lining of the Xianju ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/252
Inventor 蒋佳驰赵元波杜小强
Owner SINOHYDRO BUREAU 5
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