Based on pressure gradient model to determine leakage point in heating pipe network

Xianliang Yang, Lianlian Jia, Songling Wang, Jiangjiang Wang

COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(5) 252-256

Department of Energy and Power Engineering, North China Electric Power University, Baoding City, Hebei Province, China, 071003

This paper describes a calculation method based on pressure gradient model to determine leakage point in central heating pipe network which decreases the effect of the ratio frictional resistance. In the calculation method, a pipe resistance characteristic coefficient is introduced. This characteristic coefficient is corrected by hybrid adaptive genetic algorithm. With the characteristic coefficient and the pressure value of each node in heating pipe network, the leakage point orientation in central heating pipe network can be done with the positioning analysis on the heating pipe network leak. The pressure value is calculated using the theory of graph algorithms. In this analysis, the pressure gradient is the most important analytical method. According to the data monitored by supervisory control and data acquisition (SCADA) system, the leak position can be located. The experimented results show that the method to locate the leakage point in the thermal system pipe network meets the theoretical need and the experimental one.