低压轴封进、回汽系统故障对凝汽器真空度的影响

华电技术 ›› 2012, Vol. 34 ›› Issue (3): 12-12.

低压轴封进、回汽系统故障对凝汽器真空度的影响

曾华

华电集团贵港发电公司，广西贵港573100

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-03-25 发布日期:2012-03-25

Influence of faults of steam admission and return system of low pressure shaft gland on condenser vacuum

ZENG Hua

Huadian Guigang Power Generation Corporation, Guigang 573100, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-03-25 Published:2012-03-25

摘要/Abstract

摘要： 某电厂 #2机组自建成发电以来，凝汽器真空度一直偏低。对轴封系统进行全面检查后发现， #4瓦和 #6瓦处低压轴封进汽系统与回汽系统互相接反，对其管道进行调换后，机组真空度达到设计值，煤耗下降，经济效益显著。

关键词: 凝汽器真空度, 轴封系统, 轴封进汽, 轴封回汽

Abstract: Since the unit No.2 of a power plant was put into production, the vacuum of its condenser was lower at all time. It was found out by complete inspection for the shaft gland that the steam admission and steam return system of the low pressure shaft gland of the bearing shell No.4 and No.6 were connected inversely. After the tubes reconnected conversely, the vacuum of the condenser was reached the designed value; the coal consumption was reduced, and remarkable economical benefit was obtained.

Key words: condenser vacuum, shaft gland system, steam admission of shaft gland, returning steam of shaft gland

曾华. 低压轴封进、回汽系统故障对凝汽器真空度的影响[J]. 华电技术, 2012, 34(3): 12-12.

ZENG Hua. Influence of faults of steam admission and return system of low pressure shaft gland on condenser vacuum[J]. Huadian Technology, 2012, 34(3): 12-12.

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