Since the 60 MW turbine of a power plant was put into operation,with the increas-ing amount of steam leakage from the turbine front shaft seal,the shaft seal steam supply system has been facing the risk of over-temperature and over-pressure operation for a long time.Aiming at this problem,the operation status of the shaft seal steam supply system,material composition and tur-bine start-stop characteristics were analyzed,corresponding improvement measures were taken,and significant results were achieved in improving the vacuum leakage problem of the unit.
关键词
轴封供汽/漏汽/真空/自然补偿
Key words
shaft seal steam supply/vapor leakage/vacuum/natural compensation
万方数据