Energy-Saving Optimization Operation Of Circulating Water Pump Of350MW Unit

Coal-fired power dominates the energy structure in China. Traditional thermal power units have great potentiality in saving energy. So improving the economy of thermal power units is an important way to accomplish the target of power saving and reducing emission.The circulating water pumps consume more power in the thermal power plants. In the case of single group and multi-circulating pumps operation,two-speed circulating pumps operation and multi-group and multi-circulating pumps operation,calculating power that circulating pumps consume and that steam turbin outputs is a way to gain the most economical circulating water flux and to determine the best circulating water pump operation.By studying the characteristics of circulating water pump,piping systems,condenser and cooling tower,we educe the calculating program of the circulating water pump operation optimization and the best circulating water pump operation mode in different environments and achieve the economic goals of the units.