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상수도관로 누수신호의 특성 분석을 위한 누수 실험시설 개발 KCI 등재

Development of leakage test facility for leak signal characteristic analysis in water pipeline

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상하수도학회지 (Journal of the Korean Society of Water and Wastewater)
대한상하수도학회 (Korean Society Of Water And Wastewater)
초록

A real scale leakage test facility was developed to study the leak signal characteristics of water supply pipelines, and then leak tests were carried out. The facility was designed to overcome the limited experimental circumstances of domestic water supply pipeline experimental facilities. The length of the pipeline, which was installed as a straight line, is 280m. Six pipes were installed on a 70m interval with different pipe material and diameters that are DCIP(D200, D150, D100, D80), PE(D75) and PVC(D75).The intensity of the leakage is adjusted by changing the size of the leak hole and the opening rate of ball valve. Various pressure conditions were simulated using a pressure reducing valve.To minimize external noise sources which, deteriorate the quality of measured leak signal, the facility was built at a quiet area, where traffic and water consumption by customers is relatively rare. In addition, the usage of electric equipment was minimized to block out noise and the facility was operated using manual mode. From the experimental results of measured leakage signal at the facility, it was found that the signal intensity weakened and the signal of high frequency band attenuated as the distance from the water leakage point increased.

저자
  • 박상혁(한국건설기술연구원) | Sanghyuk Park (Korea Institute of Civil Engineering and Building Technology) Corresponding author
  • 곽필재(한국건설기술연구원) | Philljae Kwak (Korea Institute of Civil Engineering and Building Technology)
  • 이현동(한국건설기술연구원) | Hyundong Lee (Korea Institute of Civil Engineering and Building Technology)
  • 최창호(한국건설기술연구원) | Changho Choi (Korea Institute of Civil Engineering and Building Technology)