大机组通流间隙变化的研究  

Study on Blading Clearance Variations of Large Capacity Sets

作　　者：杨宏强[1] 徐勇 

机构地区：[1]北仑第一发电有限责任公司,浙江宁波315800

出　　处：《发电设备》2002年第4期49-52,共4页Power Equipment

摘　　要：该文着重介绍了用实测高温管道位移并结合理论计算的办法来求出管道对汽缸的作用力的方法 ,而且在实际机组上应用成功。该方法相对于采用高温应变实测管道作用力的办法简易可行 ,易于实施。此外该文还对电站中较多发生的汽缸膨胀不畅故障作了分析研究。图 2表The paper, in the main, presents factually measured displacements of high temperature pipings, and, with the help of theoretical calculation, presents away to estimate the force; with which the pipings act on the casings and which has been successfully applied to operating sets. This method is relatively simple and easy to use in practice as compared to high temperature strain gauge measurements of actual piping forces. The paper also analyzes difficulties that often arose due to abstracted free expansion of the cylinders. Figs 2 and table 1

关 键 词：大机组 汽轮发电机组 汽缸膨胀 通流间隙 滑销系统 转子窜动 

分 类 号：TM311[电气工程—电机]