变频调速机泵节电率的理论分析  

THEORETICAL ANALYSIS ON ELECTRICITY SAVING PERCENT OF FREQUENCY GOVERNING MOTORS AND PUMPS

作　　者：张世文[1] 

机构地区：[1]金陵石油化工公司炼油厂,江苏省南京市210033

出　　处：《炼油设计》2001年第4期27-29,共3页Petroleum Refinery Engineering

摘　　要：通过变频调速机泵节电率 ξ和静压头增量Δp/γ与位头增量ΔZ之和即 (Δp/γ +ΔZ)工艺参数之间关系的理论上分析表明 ,(Δp/γ +ΔZ)值的大小对于变频器的节电率 ξ起着决定性的影响 ,节电率 ξ随着该值的下降而提高 ,对于该值趋于零的泵节电效果最佳。Theoretical analysis on relation between electricity saving percent of frequency governing motors and pumps and the sum(Δp/γ+ΔZ) of static pressure increment Δp/γ and potential pressure increment ΔZ showed that,the electricity-saving percent ξ is mainly depended on the value of Δp/γ+ΔZ.ξ value increases with the decrease of (Δp/γ+ΔZ).Thus the pump with a value of (Δp/γ+ΔZ) near zero has the optimal electricity conservation.

关 键 词：石化设备 机泵 变速电动机 节能 变频调速 

分 类 号：TM921.5[电气工程—电力电子与电力传动]