| 1 000 MW核主泵导叶体型线检测新方法 |
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| 引用本文： | 刘祥松,卜延鹏,邱国帆,冯晓东.1 000 MW核主泵导叶体型线检测新方法[J].排灌机械工程学报,2014,32(11):937-942. |
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| 作者姓名： | 刘祥松 卜延鹏 邱国帆 冯晓东 |
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| 作者单位： | 哈电集团哈尔滨电气动力装备有限公司, 黑龙江 哈尔滨 150001 |
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| 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,提出了一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,测量导叶体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．以国内福建福清核电站12号机组以及秦山一期扩建工程方家山核电站主泵导叶体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±25％,扬程偏离±15％的要求．
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| 关 键 词： | 核主泵 导叶体 型线 骨线 叶距角 点云分析 |
| 收稿时间： | 2013-10-11 |
New method for measuring vane profile of diffuser of 1 000 MW
reactor coolant pump |
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| Institution: | Harbin Electric Power Equipment Co. Ltd., Harbin Electric Corporation, Harbin, Heilongjiang 150001, China |
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| Abstract: | To check the vane profile of the diffuser of a 1 000 MW reactor coolant pump (RCP), which is machined by using numerical control machining technique, a set of approaches for measuring and assessing vane profile of a through flow component are proposed. Through adopting a reverse engineering analysis software PolyWorks together with a three coordinates measuring machine, the three coordinates of vane pressure and suction sides of the diffuser are measured and the root mean square of deviation of the measured profile from the designed one is figured out. Based on a statistic and theoretical analysis on the measured profile data of the vane pressure and suction sides near the vane leading and trailing edges, a formula for estimating deviation angel of pressure or suction side profile Δβ is put forward. Moreover, a correlation for deviation angle between two vanes Δφ, and a correction formula for deviation of individual vane profile K are established. This set of methods can accurately and effectively inspect the vane profiles of a hydraulic machine and assure each profile to have the same wrap angle. Based on the measurement and evaluation of vane profiles of the diffuser of the RCP for Fuqing and Fangjiashan Nuclear Plant, all the deviation errors are allowable. As a result, the tested perfor mance of the RCP shows that the flow rate and head deviate from the design specifications by ±2.5% and ±1.5%, respectively. |
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| Keywords: | reactor coolant pump diffuser airfoil profile chamber line pitch angle PolyWorks |
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