Guide limiting block for pipe shoe and installation method of guide limiting block

Abstract

The invention discloses a guide limiting block for a pipe shoe and an installation method of the guide limiting block. The contour of the cross section of the guide limiting block is in a trunk shape, and the guide limiting block comprises a connecting edge, an inwards-concave section, a guide edge, a limiting edge and an outer contour edge which are connected end to end in the clockwise direction; the connecting edge, the inwards-concave section, the guide edge, the limiting edge and the outer contour edge extend in the thickness direction to form a connecting face, an inwards-concave face, a guide face, a limiting face and an outer contour face respectively; the guide limiting block is of a trunk-shaped structure, the connecting face is used for fixing, the inwards-concave face enlarges the gap between the guide limiting block and a pipe shoe bottom plate, welding and coating are facilitated; the guide face and the limiting face are arranged to limit the movement direction of the pipe shoe bottom plate and a pipeline, the guide and limiting effects are achieved, installation is convenient, and the construction procedure is optimized; and by applying the guide limiting block, the problem of corrosion prevention dead corners of the guide limiting block of a pipe shoe of a process pipeline of an offshore oil platform is solved, potential engineering quality hazards can be effectively avoided, and the effects of reducing economic cost and facilitating installation are achieved.

Description

technical field [0001] The invention relates to the field of pipeline installation and construction, in particular to a guide limit block for pipe shoes and an installation method thereof. Background technique [0002] In the petrochemical industry, there are often a large number of densely arranged pipeline systems, including offshore oil production platforms. The pipeline system is complex and the layout space is limited. Insufficient dead corners that cannot be painted, the difficulty of anti-corrosion coating on the guide limit block of pipeline shoes, and the remaining quality problems of coating will bring great quality and safety risks to the subsequent pipeline operation and commissioning. [0003] In the traditional design, the guide limit block is usually designed as an angle steel or T-shaped steel guide limit form. The bottom plate and the pipeline support platform are clamped by the angle steel or T-shaped steel. Usually, the limit block needs to be installed fi...

AI Technical Summary

Problems solved by technology

[0002] In the petrochemical industry, there are often a large number of densely arranged pipeline systems, including offshore oil production platforms. The pipeline system is complex and the layout space is limited. Insufficient dead angle that cannot be painted, there is difficulty in anti-corrosion coating of the guide limit block of the pipeline pipe shoe, and the remaining coating quality problems bring great quality and safety risks to the subsequent pipeline operation and commissioning

[0003] In the traditional design, the guide limit block is usually designed as an angle steel or T-shaped steel guide limit form. The bottom plate and the pipeline support platform are clamped by the angle steel or T-shaped steel. Usually, the limit block needs to be installed first and then the The pipe shoe of the pipeline is stuck in the gap of the limit block, and finally the pipeline and the pipe shoe are installed and fixed. The gap is small, the pipe shoe is inconvenient to install, and the construction process is cumbersome; the force of the guide limit mainly acts on the edge of the bottom plate of the pipe shoe , which is not conducive to the stability of the pipeline. Usually, it is necessary to set up other structures to assist the movement of the pipeline to realize the guide limit of the pipeline; in addition, the guide limit block in the form of angle steel or T-shaped steel, its inner surface There is usually only a 3 mm gap between them to ensure the limit effect, which makes it very difficult for the anti-corrosion coating operation deep inside the guide block, because the deep inside of the guide block is basically inaccessible. During welding operations and anti-corrosion coating, There will be anti-corrosion dead angles, which will affect the welding quality and coating quality of the pipeline guide limit block in the project, and there will be certain engineering risks. Research and development on this technical issue is urgently needed

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