Pipeline stress deformation test experiment device and method

Abstract

The invention discloses a pipeline stress deformation test experiment device, and further discloses a pipeline stress deformation test experiment method. The device comprises an experiment management platform system, a stress test mechanism, a pressure transmitter and a stress transmitter, the experiment management platform system is connected with the stress test mechanism through a communication cable, and the pressure transmitter and the stress transmitter are connected with the experiment management platform system through communication cables. The device can quickly and accurately master the quantitative relation between the stress and the strain of the measured pipeline, can be used for verifying and calibrating various strain monitoring devices and methods, gives objective evaluation on the accuracy and effectiveness of the monitoring devices and methods, and is safe, reliable and high in practicability, and the strain monitoring data of the measured pipeline body are not interfered by other conditions. The stress of the measured pipeline can be prevented from being overrun and plastically deformed, so that the experiment has repeatability, the result repeatability is good, and the workload of effectively evaluating the monitoring result of the long measured pipeline in a field complex environment is greatly reduced.

Description

Technical field[0001]The present invention relates to the technical field of pipeline testing equipment, and in particular, to a pipeline force deformation test experimental apparatus and method.Background technique[0002]The stress-strain risk monitoring of the service pipeline is generally in the initial pipeline, and the monitoring threshold is obtained by mechanical analysis, and then continuously monitors the pipe stress change during subsequent operation, and a warning is issued when a certain ratio of the monitoring threshold is achieved. During the actual operation of the pipeline, whether it is caused by the stress change caused by the operating conditions or geological disasters, most of the cases are slow, and their stress changes are difficult to predict, which is not conducive to rapid intuitive analysis and verification results. Accuracy. To this end, an experimental apparatus capable of rapid loading and verifying the effectiveness of the monitoring device to the pipel...

AI Technical Summary

Problems solved by technology

[0003] In the actual inspection and monitoring of pipelines in service, the pipeline force deformation test device cannot close-loop verify the quantitative relationship between force and strain, and the effectiveness of various strain monitoring technologies is difficult to quickly evaluate. deformed

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