基于热力学方法的给水泵性能曲线计算.pdfVIP

30 FLU ID MACH INERY V l36, N 01, 2008 : 1005 0329( 2008) 01 0030 04 基于热力学方法的给水泵性能曲线计算 1 1 2 1 1 , , , , ( 1. , 132012; 2. , 110006) : , ISO5198 , , , , , , , : ; ; : TK2 12 : A Ca lcu lation of Character istic Curves of F eed W ater Pum p Based upon T herm odynam icsM ethod 1 1 2 1 1 ZHANG A i-ping , L IU Gu-i hua , WANG Gu -d ng , WANG H ai-ting , JIANG Lian-y i ( 1. N rtheast D ianliUn iversity, Jilin 1320 12, Ch ina; 2. L ia n ing X inhuayuan E lectric P w er Engineering C . , Ltd. , Shenyang 110006, China) A bstrac t: A cc rding t the gathered perati n data f feed w ater pum p driven by steam turb ine, the characteristic param eters f feed w ater pum p w as thesis calculated by the therm dynam ics m eth d the rem in ferred by ISO5 198, and the characteristic curves w as g t by the least squared m eth d regressi n analysis. These characteristic curves ffer the bases f the feed w ater pum p perf rm ance estmi ati n and thewh le un it ec n m ical analysis. And the testing resu lt and the calcu lating resu lt are able t satisfy the requ ired accuracy by err r analysis, the calculati n is pr ved t be availab le. K ey w ord s: therm dynam ics m eth d; least squared m eth d regressi n analys is; characteristic cu rves [ 1] 1 , 2, , , , 300MW , 1( a); 1 100% 2 50% , , , 1( b) 100m, 25% ~ 50% 1( b), , , , 2 , , NPSH r , 2. 1 原理 , , , : 2007 05 18 : 2007 11 22 2008 36 01