火电厂循环水泵节能提效研究

Study of the Enhancement in the Efficiency of a Circulating Water Pump in a Thermal Power Plant

针对火电厂循环水泵普遍存在效率偏低的问题,分析了循环水泵效率偏低的原因,并提出了提高循环水泵运行效率的方法,通过对循环水泵通流部分的优化设计,根据实际运行情况选择运行参数,优化循环水泵运行方式等措施,使循泵运行效率提高20%。改造后,水泵每年节电百万度,取得了良好的节电效果。

In the light of the problem that the efficiency of circulating water pumps in thermal power plants is universally on the low side,the authors analyzed its causes and proposed a method for enhancing the operation efficiency of circulating water pumps. Through taking such measures as an optimized design of the flow path of a circulating water pump and optimization of the operation mode of the pump according to the actual operating conditions and others,the authors have made the operation efficiency of the pump increased by 20%. After the modification,using the pump can save millions of kilowatt-hour electricity each year,thus achieving a good power-saving result.