Study on Intelligent Pressure Reducing Valve and Leakage Diagnosis

Leaks in distribution systems can lead to loss of water resources. Pressure reducing valve is widely used in water diversion and urban water supply projects, and it is also the key to control leakage. The pressure reducing valve used in the water supply network is self-operated pressure reducing valve with a pilot system. The conventional pressure relief valve can only be changed by manually tightening the regulating thread of the pilot valve. At present, the problem is that the pressure can not be intelligently controlled. Furthermore, the leakage of the water distribution system can not be a timely and accurate perception. Therefore, this work puts forward a new intelligent pressure reducing valve and diagnostic method for leakage. We determine the overall design scheme of hardware and software. The intelligent pressure reducing valve proposed in this paper adopts a new structural design. The valve uses a stepper motor instead of a manual regulating guide valve. Meanwhile, pressure sensors are set in front of the valve and behind the valve to collect data by the deep residual shrinkage network to train the pressure. The leakage can be judged effectively and timely through the trained model. The experimental results show that the accuracy of the trained model over 95%. Furthermore, it can judge the leakage situation of the water distribution system in time. The intelligent pressure reducing valve proposed in this paper has more significant advantages than the traditional pressure reducing valve. The novel valve greatly facilitates the pressure management of the water distribution system and has the possibility of wide application.