A pipe body restraint device in pressure relief of high-pressure metal gas pipeline pressure blasting test

Abstract

The invention discloses a pipe body constraining device used in pressure release of an air pressure explosion test for a high-pressure metal gas delivery pipe. The pipe body constraining device comprises a fixed station; the fixed station is provided with a pipe groove used for accommodating the high-pressure metal gas delivery pipe; two ends of the pipe groove are equipped with anchoring units; a plurality of sets of friction piles are arranged on the fixed station; each set of friction piles comprise two friction pile units; a fixing flexible steel rope for fixing the high-pressure metal gas delivery pipe is wound on each friction pile unit; a supporting layer is arranged below the pipe groove; a plurality of fixed piles are arranged on the supporting layer; and the tops of the fixed piles are aligned with the bottom end of the pipe groove. According to the invention, the axial movement of the high-pressure metal gas delivery pipe is restricted by the two anchoring devices; the fixing flexible steel ropes are wound on the high-pressure metal gas delivery pipe and fixed on the friction piles so as to better fix the high-pressure metal gas delivery pipe; and the plurality of fixed piles distributed below the pipe groove can avoid influence of insufficient bearing capacity of a foundation on safety.

Description

technical field [0001] The invention relates to a pipe restraint device in a pressure release test of a high-pressure metal gas pipeline, which belongs to the technical and safety fields of gas-liquid high-pressure pipeline transportation engineering. Background technique [0002] During the operation of high-pressure gas pipelines, due to pressure changes in the pipeline, fatigue or damage of pipeline materials, and external effects, cracks in the pipeline wall will occur somewhere in the pipeline and then expand for a long distance, which will not only cause serious economic losses and environmental damage. Pollution will also cause catastrophic accidents such as casualties on the ground, damage to buildings and facilities. Therefore, in order to minimize the loss and speed up the repair process after the accident, the mechanical behavior of crack formation and expansion of large-diameter high-pressure metal pipelines has been extensively studied at home and abroad. The r...

AI Technical Summary

Problems solved by technology

[0002] During the operation of high-pressure gas pipelines, due to pressure changes in the pipeline, fatigue or damage of pipeline materials, and external effects, cracks in the pipeline wall will occur somewhere in the pipeline and then expand for a long distance, which will not only cause serious economic losses and environmental damage. Pollution will also cause catastrophic accidents such as casualties on the ground, damage to buildings and facilities, etc.

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