停机后汽缸温差大原因分析及处理  

Cause Analysis and Treatment of Large Temperature Difference of Cylinder After Shutdown

作　　者：芦利生 LU Li-sheng(Zhonghai Hainan Power Generation Co. Ltd., Yangpu Economic Development Zone, Yangpu 578101, China)

机构地区：[1]中海海南发电有限公司,海南省洋浦经济开发区578101

出　　处：《中小企业管理与科技》2017年第29期175-176,共2页Management & Technology of SME

摘　　要：当汽缸温差较大时,缸体将发生"猫拱背"变形,转子中心线会出现一定程度的变化。轻则破坏汽机结合面的严密性,导致漏汽;重则致使动、静部分间隙变小,使机组发生剧烈振动,给机组带来严重损害。When the temperature difference of the cylinder is large, the arch deformation liking a cat back will occur on the cylinder, and the center line of the rotor will change to a certain extent. The light will destroy the tightness o f the turbinej oint surface, leading to leakage of steam, the heavy will lead to a small gap between the moving and static parts, resulting in severe vibration o fthe unit, causing serious damage to the unit.

关 键 词：温差 停机 中心线 摩擦 振动 

分 类 号：TM76[电气工程—电力系统及自动化]