XU Jian-qiao,YUAN Yi-xing,WU Chen-guang.Design of Outsourcing Pipe Fittings and Repair Test for Water Supply Pipeline[J].China Water & Wastewater,2021,37(17 17):44-49.
Design of Outsourcing Pipe Fittings and Repair Test for Water Supply Pipeline
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
17 17
Page:
44-49
Column:
Date of publication:
2021-09-01
- Abstract:
- The concept of active repair was proposed for repair of the weak position of the pipeline, and an outsourcing pipe fitting for reinforcement of the weak positions was designed. The two functions of self-repair and leakage monitoring were achieved by filling the pipe fitting with absorbent rubber and strain gauge. To verify the practical effect of the outsourcing pipe fittings, carbon steel pipe fittings for pipe flanged joints were fabricated, and the “dynamic water” experiment was carried out. During the test, the strain sensors were affixed to the surface of the vulcanized expansion rubber. The obvious leakage signal could be detected within half an hour, and the expansion rubber filled in the pipe fitting cavity could reduce the leakage rate by more than 90% within 72 hours of the leakage, indicating that the outsourcing pipe fittings had superior performance in both leakage monitoring and self-repair.
Last Update:
2021-09-01