Method for mounting cable bridge on gas pipeline

An installation method and cable bridge technology, applied in the direction of pipeline supports, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problems of increasing construction costs and large limitations, so as to avoid cross operations, reduce high-altitude operations, and improve labor efficiency effect

Inactive Publication Date: 2012-06-20
TIANJIN 20 CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For new projects, the installation of the bridge on the pipeline needs to be completed before the pipeline pressure test and put into operation. This requires the construction materials to enter the site and the personnel organization to be completed in advance. If necessary, it needs to be intersected with the pipeline construction, which has great limitations.
During the construction of reconstruction and expansion projects, it is necessary to apply for various hot-fire procedures, make various fire-fighting preparations, and complete various tasks such as gas venting, nitrogen replacement, purging, and testing within a specific parking period before construction can begin. If the above conditions cannot be met, it is often necessary to consider changing the laying path of the cable, which will greatly increase the construction cost

Method used

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  • Method for mounting cable bridge on gas pipeline
  • Method for mounting cable bridge on gas pipeline
  • Method for mounting cable bridge on gas pipeline

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Embodiment Construction

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0022] A method for installing a cable bridge on a gas pipeline includes a method for erecting a horizontal bridge 12 and a method for installing a vertical lower bridge 13.

[0023] The erection method of the horizontal bridge 13 includes the following steps:

[0024] A) See figure 1 The work that needs to be completed at this stage is mainly through the inspection of the environmental conditions of the construction site, according to the construction requirements, combined with the number of ribs 3 on the pipe 14 and / or the number of heat tracing pipe supports, plan the bridge path, and determine the bridge support position. The number and spacing of the approved pipe reinforcement and / or the existing heat tracing pipe supports on the pipe are assembled on the ground ...

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Abstract

The invention discloses a method for mounting a cable bridge on a gas pipeline. A bridge fixing device and sectional bridges are made on the ground; grounding main lines are preset on the sectional bridges and a single bridge; and the structure of the bridge fixing device meets the requirement that the bridge fixing device can be fixed to an accessory of the pipeline through a bolt, and the requirement that the bridge can be spliced through bolts. The method has the advantages that: the constructional requirement is low; welding and flame operation in dangerous regions can be avoided; the cable bridge can be safely and conveniently constructed; the engineering cost is low; and the economic benefit is high.

Description

Technical field [0001] The invention relates to a method for installing a cable tray, in particular to a method for installing a cable tray on a gas pipeline. Background technique [0002] In the electrical construction of the metallurgical industry, especially during the installation of electrical equipment in some reconstruction and expansion projects, the cable tray path often conflicts with some medium pipes. Due to the actual conditions of the site, some cable bridges need to cross the medium pipe or even along the medium. Pipeline installation. For the already operating flammable and explosive medium gas pipelines, it is very dangerous to install cable bridges along the pipelines. The bridge supports adopting the previous bracket welding method is very dangerous, and there are many requirements for construction time and construction procedures. For new projects, the installation of the bridge on the pipeline needs to be completed before the pipeline pressure test and commi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L3/00
Inventor 张景辉武立志孙凤云王晖
Owner TIANJIN 20 CONSTR
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