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Hoisting method of cable-stayed suspended tubular busbar

A technology of tubular busbar and hoisting method, which is applied in the installation of busbar, fully enclosed busbar device, cable installation, etc. It can solve the problems of high difficulty in installation of 500KV substation, inability to ensure the progress of substation installation, complicated hoisting, etc.

Active Publication Date: 2020-12-25
POWER CHINA HENAN ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tubular busbar is a key work in the installation of electrical equipment in substations. The 500KV substation of Datang Yuzhou Power Plant is difficult to install and the construction period is short. 7 groups of transformers, 3 groups of voltage transformers, 22 groups of isolating switches, 5 groups of lightning arresters, section I and II tubular busbars, panel cabinets in the network control room and other equipment. The installation method of the busbar has a long construction period and complicated hoisting, which cannot ensure that the installation progress of the substation can meet the grid-connected power generation of #3 unit in time

Method used

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  • Hoisting method of cable-stayed suspended tubular busbar
  • Hoisting method of cable-stayed suspended tubular busbar
  • Hoisting method of cable-stayed suspended tubular busbar

Examples

Experimental program
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Effect test

Embodiment

[0029] Embodiment: A hoisting method of a cable-stayed suspended tubular busbar, the steps are as follows: The preparatory work before hoisting includes: 1) The height of the civil gantry frame 1 according to the acceptance is 23m, and the distance between the two civil gantry frames 1 is 29m , the welding length of the tubular busbar 2 is determined to be 22m, and a 25-ton truck crane 4 and a winch mill 5 are used for hoisting.

[0030] 2) According to the design drawings and hoisting plan, choose 4 strings per phase, 34 pieces of insulator strings per string 6, four 3-ton sliders 7, one 5-ton lifting ring 9, one 60m φ12.5 steel wire rope 10, four A 30m hemp rope, a traction wire rope 8, two suspension fittings 11 and other spreaders and installation tools are installed,

[0031] 3) Check that all installation tools are in good condition, and the surface of the hanging hardware 11 should be free from cracks and rust, and the anti-loosening accessories are complete.

[0032] ...

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Abstract

The invention discloses an inclined pulling hanging type tubular busbar hoisting method. According to the hoisting operation steps, a special hanging beam is manufactured, and the special hanging beamis manufactured according to the distance of hanging holes in a civil engineering n-shaped framework and the total length and the weight of a tubular busbar; the left end of the tubular busbar is hoisted in a combined manner, and a crane is used for hanging the special hanging beam to sequentially connect an insulator chain and a hanging hardware fitting for hoisting; the right end of the tubularbusbar is hoisted in a combined manner, a winch mill is used for dragging a traction steel wire rope to sequentially connect a steel wire rope, the insulator chain and the hanging hardware fitting for hoisting; hanging holes in the crane side are hoisted and connected; hanging holes in the winch mill side are hoisted and connected, and the tubular busbar hoisting process is finished; levelness adjustment is conducted; and sling dismounting is conducted. According to the inclined pulling hanging type tubular busbar hoisting method, through manufacturing and using of the special hanging beam, ahoisting machine is reasonably arranged on the construction site, the hoisting work of a 500 KV transformer substation tubular busbar is safely and rapidly finished, the inclined pulling hanging typetubular busbar hoisting method can be used for installing of similar transformer substation tubular busbars, and a basic guarantee is provided for later tubular busbar hoisting.

Description

technical field [0001] The invention relates to a hoisting method for a tubular busbar in a 500KV substation, in particular to a hoisting method for a cable-stayed suspended tubular busbar. Background technique [0002] Tubular busbar is a key work in the installation of electrical equipment in substations. The 500KV substation of Datang Yuzhou Power Plant is difficult to install and the construction period is short. 7 groups of transformers, 3 groups of voltage transformers, 22 groups of isolating switches, 5 groups of lightning arresters, section I and II tubular busbars, panel cabinets in the network control room and other equipment. The long construction period and complicated hoisting method of the busbar installation method cannot ensure that the installation progress of the substation can meet the grid-connected power generation of #3 unit in time. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/10H02G5/00H02G5/06
CPCB66C1/10H02G5/00H02G5/061
Inventor 燕舞何万泉姬海鹏
Owner POWER CHINA HENAN ENG CO LTD
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