摘要
汽封的性能对机组的经济性和可靠性有重要的影响。为降低漏汽损失,提高机组安全性和经济性,将原有的传统曲径汽封改为新型汽封十分必要。本文对各种汽封的工作原理和实际应用情况进行了对比分析,并阐述了汽封改造和应用中须注意的问题。
The performance of steam seals plays an important role in economic efficiency and reliability of the units. In order to decrease the leakage lose and to enhance the security and economic efficiency of the units, it is most necessary to retrofit the seal structure from traditional stepped labyrinth seals to new type ones. The working principle and practical application of several kinds of steam seals have been analysed and compared, and problems needing to pay attention in seal retrofit and seal application being expounded.
出处
《热力发电》
CAS
北大核心
2007年第12期65-68,共4页
Thermal Power Generation
关键词
汽轮机组
汽封
漏汽
内效率
steam turbine unit
steam seal
steam leakage
internal efficiency
