Method and equipment for mounting large-diameter pipelines in tube well and application method of equipment

A pipeline installation and large-diameter technology, which is applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of large number of pipeline cut-off sections and welding dead corners of pipeline joints, etc., achieve fast consignment mode, low operation consumption, and reduce cutting The effect of the number of segments

Active Publication Date: 2017-11-24
CHINA 22MCC GROUP CORP
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The invention aims to solve the problems in the prior art that there are many pipeline cut-off sections and welding dead angles at the pipeline joints

Method used

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  • Method and equipment for mounting large-diameter pipelines in tube well and application method of equipment
  • Method and equipment for mounting large-diameter pipelines in tube well and application method of equipment
  • Method and equipment for mounting large-diameter pipelines in tube well and application method of equipment

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Embodiment Construction

[0036] In the pipeline construction in the prior art, the long pipe is directly hoisted from the top of the pipeline well and sent into the well, but the required hoisting equipment is large, and the implementation cost is very high. When installing the riser in the tube well, if the tower crane has been removed, the external elevator can be used to transport the tube. In high-rise construction, the floor height of each floor is generally between 3-4.5 meters, including the basement. The size of the elevator corresponds to the height of each floor. Due to the size of the elevator Restrictions require the entire tube to be cut off. Existing pipelines are generally six meters long, and each section of the pipeline is cut to a length of 3 meters. These pipelines need to be sent to each floor to prepare for welding, and the transportation workload is heavy. Due to the large number of pipe sections after cutting, the welding work in the well is quite heavy, and the space in the pip...

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Abstract

The invention provides a method and equipment for mounting large-diameter pipelines in a tube well and an application method of the equipment. The method includes: conveying a first pipeline into the tube well through oblique traction, stacking a second pipeline on the first pipeline in a caliber opposite manner, rotating the pipeline, and performing joint welding at the same time. The equipment comprises a rotary base mounted at the bottom of the tube well, an electric hoisting device mounted at the top of the tube well, a hoisting rope and rotary rings mounted in the middle of the pipelines and used for reducing friction force. The application method includes: mounting the rotary base and the electric hoisting device at corresponding positions, using the hoisting rope to guide the first pipeline into the tube well through oblique traction from a first layer, arranging the pipeline on the rotary base, guiding the second pipeline into the tube well through traction, stacking the second pipeline on the first pipeline, setting a welding gun, using the rotary base to allow the pipeline to rotate, and welding the joint of the two pipelines at the same time. The method and equipment has the advantages that the equipment is simple in structure, pipeline cutting is not needed, welding workload is reduced, and welding dead angle of the welding joint is avoided.

Description

technical field [0001] The invention belongs to the technical field of high-rise building pipeline construction. Background technique [0002] High-rise buildings, as densely populated areas, must provide convenient conditions for the normal work of these personnel and improve the comfort of the people's working environment. A large part of these conditions must be realized through various pipelines arranged in the floors, including air-conditioning pipelines, water supply, drainage pipelines, gas pipelines, reclaimed water pipelines, and hot water pipelines. The various layers of pipelines are generally connected by setting different risers in the tube well to form a system that can run continuously. [0003] The tube well is connected to the elevator shaft, and the space of the tube well is small, and it is generally a reinforced concrete structure. The diameter of the pipe in the tube well is large and there are many pipes. The tower crane has been dismantled during th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/00B23K37/053
Inventor 王彩军张甲立
Owner CHINA 22MCC GROUP CORP
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