Single-water-pump energy-saving method and energy-saving system for coal mine drainage system

The invention provides a coal mine drainage system single water pump energy saving method and system, and belongs to the technical field of coal mining. Establishing a water pump efficiency # imgabs0 # model based on the basic parameters of the water pump; establishing a motor efficiency # imgabs 1 # model based on the basic parameters of the water pump; establishing a pipeline efficiency # imgabs2 model based on the basic parameters of the water pump; establishing an energy consumption model based on the motor efficiency # imgabs3 #, the pipeline efficiency # imgabs4 # and the water pump efficiency # imgabs5 #; the method comprises the steps that the energy consumption model is established, the flow # imgabs6 # at the lowest point of energy consumption is calculated through the energy consumption model, the optimal rotating speed is obtained through calculation according to the flow rotating speed model, and the rotating speed of the water pump is adjusted to the optimal rotating speed so as to reduce the en