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A method for hoisting the inner roof of a power station unit

A technology for power station units and hoisting methods, applied in the directions of transportation and packaging, load hoisting components, etc., can solve the problems of high risk and complicated operation, and achieve the effects of flexible and convenient installation, simple structure of the hoisting device, and balanced hoisting process.

Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a special spreader and its hoisting method for the inner roof of the power station unit, so as to solve the problem of complicated and dangerous lifting operation of the inner roof of the hydropower unit

Method used

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  • A method for hoisting the inner roof of a power station unit
  • A method for hoisting the inner roof of a power station unit
  • A method for hoisting the inner roof of a power station unit

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] A special lifting tool for the inner roof of the power station unit, including several lifting lugs fixed on the inner roof of the power station unit, and the lifting lugs include outer lifting lugs 210 for setting on the outer ring frame 110 of the inner roof and for setting on the The inner lug 220 of the inner ring frame 120 of the inner roof;

[0026] The outer lug 210 includes an outer arc-shaped seat plate 211 matched with the outer ring frame 110, and the middle part of the outer arc-shaped seat plate 211 is fixedly connected with a longitudinally arranged outer ear plate 212. The inner arc-shaped seat plate 221 matched with the ring frame 120, the middle part of the inner arc-shaped seat plate 221 is fixedly connected with a longitudinally arranged inner ear plate 222, the outer ear plate 212 and the inner ear plate 222...

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Abstract

The invention discloses a special lifting appliance for an inner top cover of a power station unit and a lifting method of the special lifting appliance. The special lifting appliance comprises a plurality of lifting lugs fixed on the inner top cover of the power station unit, wherein each lifting lug comprises an outer lifting lug used for being arranged on an outer ring frame of the inner top cover and an inner lifting lug used for being arranged on an inner ring frame of the inner top cover; each outer lifting lug comprises an outer arc-shaped base plate matched with the outer ring frame, an outer lug plate which is longitudinally arranged is fixedly connected to the middle of the outer arc-shaped base plate, each lifting lug comprises an inner arc-shaped base plate and an inner lug plate, lifting holes are formed in the outer lug plate and the inner lug plate, and bolt holes matched with the outer ring frame and the inner ring frame of the inner top cover are formed in the outer arc-shaped base plate and the inner arc-shaped base plate. A structure of the inner top cover at the top of the unit is connected by virtue of a fitted bolt so as to form the special lifting appliance; the special lifting appliance is simple in structure, and flexible and convenient to install on a site; selection and inspection workloads of hoisting and suspending points can be greatly reduced, and the hoisting process is balanced, safe and reliable.

Description

technical field [0001] The invention relates to a special spreader for the inner top cover of a power station unit and a lifting method thereof. Background technique [0002] The inner top cover of the hydropower unit figure 1 As shown, the inner roof includes an inner ring frame 120 and an outer ring frame 110, and a connecting rod 111 is provided between the inner ring frame 120 and the outer ring frame 110. Since there is no lifting device on the inner roof, the installation and maintenance process depends on the site components. In the actual situation, temporarily adopting the way of winding steel wire ropes for hoisting brings great danger to the lifting work. Contents of the invention [0003] The object of the present invention is to provide a special spreader and its hoisting method for the inner roof of the hydropower unit, so as to solve the current problem of complicated operation and high risk of lifting the inner roof of the hydropower unit. [0004] In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/12
CPCB66C1/66
Inventor 李慧郎
Owner STATE GRID CORP OF CHINA
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