A device for pigging response experiment of natural gas pipeline suspension cable spanning structure

Abstract

The invention provides a device for carrying out a pigging dynamic response experiment of a natural gas pipeline suspension cable across a structure, wherein a transparent tempered glass tube and a seamless steel tube are connected through a flange, and a main cable is connected to a tower as a main load-bearing component. The fixed bracket can fix the seamless steel pipe and place it on the flat plate. The rotation of the cam under the flat plate can drive the connecting rod to move up and down, which makes the flat plate move up and down, so as to realize the vertical vibration of the pipe. The signal test device acceleration sensor and displacement sensor can be installed in the corresponding position of the seamless steel pipe according to the test requirements. The device is mainly designed to study the dynamic response of the natural gas pipeline suspension cable spanning structure and its influence on the pigging two-phase flow, and can obtain the vibration acceleration and vibration displacement of the pipeline suspension cable spanning structure under different pigging conditions etc., and simulate the influence of the pipeline on the pigging two-phase flow pattern under different vibration conditions.

Description

technical field [0001] The invention relates to the safety field of oil and gas storage and transportation engineering, and can explore the change of dynamic response characteristics such as vibration acceleration and displacement of the pipeline when the pipeline crosses the structural pigging, and the two-phase flow of pigging in the pipeline under vibration conditions such as different amplitudes and vibration frequencies. Flow state, especially a device that can carry out pigging response experiments on natural gas pipeline suspension cables spanning structures. Background technique [0002] During the construction of natural gas pipelines, they often encounter terrain conditions such as crossing rivers and deep valleys that are not conducive to the development of trenchless technology projects. At this time, pipeline crossing structures are often required. The pipeline spanning structure is a construction project in which the transmission pipeline passes over natural or...

AI Technical Summary

Problems solved by technology

However, at present, due to the limitation of the existing pipeline spanning structure experimental platform, it is impossible to visually observe the pig movement and the change of the two-phase flow pattern in the pipeline during pigging, and it is also difficult to control the dynamic response state of the pipeline to analyze its impact on pigging. The effect of two-phase flow

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