Development and Application of Real-time Control Model of Water Supply Safety Control System in Small Towns
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Abstract:
Low guarantee rate of water supply safety in small towns is caused by of the occurrence of too many water sources, water supply systems, water supply enterprises, and administrative departments. Based on the concept of Hazard Analysis Critical Control Point (HACCP), a real-time control mathematical model of key nodes of water supply was developed. The mathematical model adopted the water yield, water pressure, and water quality of key positions in the water supply system as input data, and compared them with the design values in the water supply system and those presented in the national standard and then assigned appropriate values to them. On one hand, when the sum of assigned values was “0”, it indicated that the critical position is normal. On the other hand, when the sum of assigned values was greater than “1” or equal to “1”, an alert can be reported for the corresponding position. Application of the model on the water supply safety in a small town was analyzed, which suggested that the mathematical model is of important significance to decrease the risks in the process of water production, process, and transfer in the water supply system, and therefore to improve the guarantee rate of water supply safety in small towns.
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