600 MW超临界机组凝结水泵节能改造实践

A Study on the Practice of Energy Conservation Renovation of Condensate Pumps of the 600 MW Supercritical Unit

探讨了凝结水泵变频调速技术的原理,并进行了变频改造试验分析和节能经济性分析。经过凝结水泵变频改造后,机组在低负荷时可节约电率51%,在高负荷时可节约电率13%~35%,节电效果显著,为企业节省了成本。

This paper explores the principle of the technology of frequency control of motor speed for condensate pumps,and conducts the analyses of frequency conversion renovation experiments and energy conservation economy.After the frequency conversion renovation of the pumps,the unit can save about 51%of electricity at low loads and 13%~15%at high loads.The electricity-saving effect is remarkable,saving costs for enterprises.