1000MW核主泵叶轮型线检测方法  

Checking method of 1000MW RCP impeller profile

作　　者：贾允[1,2,3] 刘祥松 高玉爽 JIA Yun;LIU Xiangsong;GAO Yushuang(School of Energy Science and Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China;Engineering Research Center of RCP of Heilongjiang Province,Harbin,Heilongjiang 150066,China;Harbin Electric Power Equipment Company Limited,Harbin,Heilongjiang 150066,China)

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001 [2]黑龙江省核主泵工程技术研究中心,黑龙江哈尔滨150066 [3]哈尔滨电气动力装备有限公司,黑龙江哈尔滨150066

出　　处：《排灌机械工程学报》2018年第12期1216-1221,共6页Journal of Drainage and Irrigation Machinery Engineering

基　　金：江苏省自然科学基金面上项目(BK20171189);流体动力与机电系统国家重点实验室开放基金(GZKF-201609);江苏省第十二批"六大人才高峰"高层次人才项目(ZBZZ-008);江苏省优势学科平台项目

摘　　要：为了检测核主泵水力部件数控加工完成后叶片型线的偏离程度,提出了1套水力部件的检测和评定方法.采用逆向工程点云分析软件(PolyWorks)与三维扫描设备相结合,测量叶轮模型叶片与产品叶片进出口压力、吸力面三坐标,同时计算叶片型线偏离的均方根偏差.通过对叶片进出口型线测量数据的统计处理和理论分析,提出叶片进出口型线偏离角度Δβ的计算公式、叶片间叶距角Δφ的偏离公式以及部分叶片型线偏离的修正公式K.结果表明:该方法能够准确有效地检测水力机械叶片型线的分布,保证了各型线有相同的包角.以国内田湾核电站扩建工程5,6号机组以及秦山一期扩建工程方家山核电站主泵叶轮翼型的检测与评定分析为例,经主泵全流量试验验证表明,与数值分析结果相比,主泵流量满足规范偏离设计流量的±2. 5%、扬程偏离±1. 5%的要求.To check the deviation of the blade profiles after the numerical processing of RCP hydraulic parts finished,one set of checking and evaluation methods was proposed.Through adopting a reversal engineering analysis software PolyWorks,together with a three-dimensional measuring machine,three coordinates for pressure and suction at the ingress and egress sides of impeller model blades and pro-duct blades were measured.At the same time,the root mean square of the deviation of the blade profiles was calculated.Through statistic and theoretical analysis on the measured data of profiles at the ingress and egress sides of blades,a calculation formula for deviating angleΔβof profiles at the ingress and egress sides of blades,a deviation formula for the angle between bladesΔφ,and a modifier formula K for the deviation of partial blade profiles were proposed.These methods can accurately and effectively check the scattering of hydraulic blade profiles and ensure the same wrap angle for each profile.Based on the checking and evaluation on the airfoil profiles of the RCP impeller for Tianwan 5,6 and Fangjiashan Nuclear Plant,full load test shows that compared with the result of numerical analysis,RCP flow meets the design deviation flow of±2.5%and pump lift deviation of±1.5%required by the specification.

关 键 词：核主泵 POLYWORKS 叶轮 型线 骨线 叶距角 

分 类 号：TH312[机械工程—机械制造及自动化]