Device for carrying out pigging dynamic response experiment on natural gas pipeline cable-suspension structure

Abstract

The invention provides a device for carrying out a pigging dynamic response experiment on a natural gas pipeline cable-suspension structure. A transparent toughened glass pipe is connected with seamless steel pipes through flanges; a main cable is connected with towers as a main bearing component; fixing brackets can be used for fixing the seamless steel pipes, and are placed on a flat plate; a connecting rod can be driven to move up and down through the rotation of a cam below the flat plate in order to drive the flat plate to move up and down, thereby realizing upward and downward vibrationof a pipeline; and an acceleration sensor and a displacement sensor of a signal testing device can be arranged at corresponding positions of the seamless steel pipes according to testing needs. The device is mainly designed for researching the dynamic response and the influence on the two-phase flow of pigging during pigging of the natural gas pipeline cable-suspension structure, and can acquire the vibration acceleration, vibration displacement and the like of the pipeline cable-suspension structure under different pigging conditions, and simulate the influences of the pipeline on the two-phase flow pattern of pigging 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 dynamic response experiments on suspension cables spanning structures of natural gas pipelines. 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 ove...

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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