System and method for monitoring actual stress of pipeline

• Main Authors: SUN CHAO, LI RUI, JIANG NAN, YAN BINGCHUAN, CHEN JIAN, CHEN PENGCHAO, ZHENG JIANFENG, LI ZHONGLIN, CHENG YAYU, JIA GUANGMING, ZHAN YIWEI
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: BLASTING; HEATING; LIGHTING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; PHYSICS; PIPE-LINE SYSTEMS; PIPE-LINES; STORING OF DISTRIBUTING GASES OR LIQUIDS; TESTING; WEAPONS

The invention relates to the technical field of pipeline stress detection and monitoring, in particular to a pipeline actual stress monitoring system and method.The system comprises a magnetic anisotropy stress sensor, a data acquisition device and a terminal; the data acquisition device is used for being fixed on the surface of an anti-corrosion layer at a preset position of a to-be-detected pipeline; the data acquisition device is used for acquiring an output voltage at a preset position by using the magnetic anisotropy stress sensor and sending the output voltage to the terminal; and the terminal is used for obtaining the principal stress difference corresponding to the output voltage at the preset position by using the pre-measured output voltage-principal stress difference corresponding relation of the magnetic anisotropy stress sensor, and obtaining the actual stress value at the preset position according to the principal stress difference. On one hand, the actual stress value of the pipeline can be dir