Installation and construction method of vertical pipe in pipe well

A construction method and tube well technology, which are applied in the directions of pipes/pipe joints/pipe fittings, transportation and packaging, pipe laying and maintenance, etc., can solve the problems of difficult alignment of pipe sections, difficult transportation of pipe sections, and low welding efficiency, etc. Ensure alignment and verticality, avoid operation safety accidents, and ensure the effect of welding quality and efficiency

Inactive Publication Date: 2018-04-24
CHINA MCC5 GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems in the prior art for the installation of the riser in the tube well, the transportation of the pipe sections is difficult, the butt alignment between the pipe sections is difficult, the welding is difficult or the welding efficiency is low, the present invention provides a tube well riser installation Construction method, in this method, the number of transportation of pipe sections is small, the pipe sections are easy to be centered and docked, and the welding area is fixed, which is convenient for controlling welding quality and improving welding efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A pipe well riser installation and construction method, the method is used for vertical installation of a riser formed by butt jointing of multiple pipe sections in a pipe well, the riser includes N pipe sections, and is from the top to the bottom of the riser, The N pipe sections are respectively pipe section 1, pipe section 2, pipe section 3, ..., pipe section N, and the method includes the following steps carried out in sequence:

[0032] S1. Install the hoist: install the main hoist and auxiliary hoist in the tube well;

[0033] S2. Hoisting the pipe section: lift the pipe section 1 from the bottom of the pipe well through the main hoist, and make the height value from the bottom of the pipe section 1 to the bottom of the pipe well greater than the length of the pipe section 2;

[0034] The pipe section 2 is lifted from the bottom of the tube well by the auxiliary hoist, and the upper end nozzle of the pipe section 2 is welded to the lower end nozzle of the pipe sec...

Embodiment 2

[0045] This embodiment is further limited on the basis of Embodiment 1: in order to obtain an ideal manual welding operation space or set up automatic welding equipment at a specific position in the pipe well to achieve high-quality and high-efficiency docking of pipe sections, in step S2, each pipe section When docking with the upper pipe section, the docking positions are all located at the same position in the tube well.

[0046] In step S2, when all pipe sections have not been docked in one continuous working cycle, the lower end of the connected riser section is released to the bottom support of the pipe well by operating the main hoist, and the connected pipe is lifted by the main hoist in the next continuous working cycle. After the riser section, the butt joint of subsequent pipe sections is carried out. With this scheme, the continuous working cycle can be understood as a day or a construction shift. For example, when the construction is completed on the same day, the...

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Abstract

The invention discloses an installation and construction method of a vertical pipe in a pipe well. The installation and construction method is used for vertically installing the vertical pipe which isformed by connecting a plurality of pipe sections in a butt joint manner in the pipe well. The vertical pipe comprises the N pipe sections, and from the top to the bottom of the vertical pipe, the Npipe sections include the pipe section 1, the pipe section 2, the pipe section 3 ... and the pipe section N. The installation and construction method comprises the sequential following steps that S1,a hoist is installed; S2, the pipe sections are hoisted, wherein the pipe section 1 and the pipe section 2 are hoisted, a pipe opening in the upper end of the pipe section 2 is welded to a pipe opening in the lower end of the pipe section 1 in a butt joint manner, a main lifting hoist is used for increasing the height of the connected vertical pipe sections, an auxiliary lifting hoist is used forsequentially hoisting the pipe section 3 ... and the pipe section N, and the pipe section 3 ... and the pipe section N are sequentially connected to the connected vertical pipe sections; and S3, the vertical pipe is fixed in the pipe well. According to the installation and construction method, the transportation frequency of the pipe sections is small, the pipe sections are easy to center and connect in a butt joint manner, welding regions are fixed, the welding quality is convenient to control, and the welding efficiency is convenient to improve.

Description

technical field [0001] The invention relates to the technical field of building pipeline installation and construction methods, in particular to a tube well standpipe installation and construction method. Background technique [0002] In the prior art, high-rise buildings and super high-rise buildings emerge in endlessly, and tube wells are an important part of buildings. During the pipeline laying process of buildings, since the tube wells include vertical risers, such as riser pipes used as electromechanical air-conditioning pipes The outer diameter may be hundreds of millimeters, and the number of risers is large, and the total height of the risers may reach several hundred meters. Therefore, in the prior art, the hoisting and splicing of risers in the tube well is a difficult point in the construction process of building pipelines. [0003] The installation method of the riser in the tube well in the prior art is: the installation sequence of the riser is to sequentially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/024B66C13/08
CPCF16L1/024B66C13/08
Inventor 刘海江李铮
Owner CHINA MCC5 GROUP CORP
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