Test device and pipeline for monitoring multidirectional displacement of expansion joint

• Main Authors: LIU YAN, MA ZHICHENG, JIA HAILONG, ZHANG YUHANG, XU DALU, CUI BOYUAN, ZHANG PENGFEI, WANG ZHIHUI, WANG JIBING, LI QIU, XU YAN, SUN TIELIN, ZHAO JIAN, YANG KONGSHUO
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MECHANICAL ENGINEERING; PHYSICS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TARIFF METERING APPARATUS; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a test device for monitoring the multi-directional displacement of an expansion joint and a pipeline. Three constraint type expansion joints are arranged on one pipeline at the same time, in the working process of the pipeline, when the environment temperature changes, the pipeline expands with heat and contracts with cold to cause axial displacement, the force balance expansion joint generates axial displacement, the compound large pull rod expansion joint generates transverse displacement, the hinge type expansion joint set generates angular displacement, and the whole device generates transverse displacement; meanwhile, the axial displacement, the transverse displacement and the angular displacement of the pipeline are monitored, the supporting device for supporting the pipeline does not bear pressure thrust and only bears rigidity counter force during displacement of the expansion joint, the strength of the supporting device is greatly reduced, and therefore the test cost is reduc