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In-place guiding device for segmented hoisting and air pairing of heavy tower equipment

A segmented hoisting and aerial alignment technology, which is applied to towers, building types, buildings, etc., can solve the problems of difficulty in ensuring alignment accuracy, many construction workers, and high labor intensity, and achieve fewer operators, high safety, and The effect of low labor intensity

Active Publication Date: 2016-07-20
CHINA NAT CHEM ENG THIRD CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key process of vertical alignment is the matching operation of the upper and lower sections of the equipment. The upper section of the hoisted equipment is affected by the high-altitude wind force and the crane's lifting, luffing, rotating, etc., and the shaking is relatively large. In the past construction, it was carried out manually. Control the shaking of the upper cylinder of the equipment and complete the assembly of the upper and lower cylinders, which requires more construction workers, high labor intensity, low efficiency, and difficult to guarantee the accuracy of the assembly

Method used

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  • In-place guiding device for segmented hoisting and air pairing of heavy tower equipment
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  • In-place guiding device for segmented hoisting and air pairing of heavy tower equipment

Examples

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Embodiment 1

[0042] The propylene propane separation tower in a propane dehydrogenation project undertaken by our company has a diameter of 9.7 meters, a height of 108 meters, and a shell weight of 960 tons. This technical scheme is adopted on site. The equipment is transported into the site in four sections, and the aerial assembly is hoisted in sections For welding, complete the installation of this heavy equipment safely and with high quality.

[0043] Technical scheme of the present invention, its concrete construction steps are:

[0044] 1) The construction road is built, the foundation of the crane station is hardened, the main crane 1250t crawler crane and the auxiliary crane 400t crawler crane arrive at the site, and the assembly is completed according to the working conditions required by the lifting plan.

[0045] 2) The first segment with the longest segment length and the heaviest weight is transported into the site horizontally.

[0046] 3) Lift and unload the truck jointly b...

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Abstract

The invention discloses an in-place guiding device for segmented hoisting and air pairing of heavy tower equipment and belongs to the technical field of equipment manufacturing and installation. According to the in-place guiding device, supporting tools are installed on the peripheral wall of the portion, close to a paired welding position, of a lower section of a tower, and guide columns are welded to the tools; guiding rings are installed on the portion, located above a paired weld joint, of the tower section to be hoisted; the guiding rings are uniformly distributed on the peripheral wall of the portion, close to the welding position, of an upper section of the tower and correspond to the guiding columns of the lower section of the tower; and the upper section of the tower is hoisted to the position above the lower section of the tower, the position of the upper section of the tower is adjusted and controlled by drawing hemp ropes tied in advance, the guiding columns installed on the upper portion of the lower section of the tower are sleeved with the guiding rings installed on the lower portion of the upper section of the tower by descending hoisting rings, and the upper section and the lower section of the tower are guided to be aligned rapidly and accurately. A brand-new method for segmented hoisting and vertical pairing of the heavy tower equipment is designed. By the adoption of the technical scheme, pairing of the upper section and the lower section of the equipment can be completed more safely, rapidly and accurately.

Description

technical field [0001] The invention relates to the technical field of equipment manufacturing and installation, and more specifically, relates to a construction method in which the equipment hoisting section and the lower section of the installed equipment are accurately and quickly combined in the air during the section hoisting of heavy tower equipment. Background technique [0002] With the large-scale design of petrochemical production equipment, there are more and more large-scale and heavy-duty tower equipment in construction projects. However, due to the limitation of transportation conditions, often some over-limit equipment cannot be transported into the construction site as a whole, and can only be transported in sections. Field, and then group butt welding. On-site pairing can be divided into horizontal pairing and vertical pairing. Horizontal pairing is due to the large construction site required, the need to use supporting roller support frames, and the need to...

Claims

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Application Information

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IPC IPC(8): E04H12/00
CPCE04H12/00
Inventor 张宗斌
Owner CHINA NAT CHEM ENG THIRD CONSTR
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