一、前言 1、据73年6月9日“朝阳20万瓩机组完善化项目表”中所载,汽轮机在带负荷过程中,低压缸处的转子-汽缸相对膨胀(以下简称“胀差”)表计指示值多次超过规定值,无法控制在制造厂限定的允许数值范围内; 2、73年5月10日事故后解体发现:通流部分多处磨擦或磨损,如低压第30级隔 I. Preface 1. According to the table of “Project of Perfecting 20 Million Units of Chaoyang” on June 9, 73, the rotor-cylinder in the low-pressure cylinder is relatively expanded (hereinafter referred to as “differential expansion” ) Table meter value repeatedly exceeded the specified value, can not be controlled within the limits allowed by the manufacturer; 2, May 10, 1973 after the disintegration of the accident found that: the flow part of multiple friction or wear, such as low pressure level 30 Every other