汽轮机真空低的原因分析及预防措施

Reason Analysis and Preventive Measures of Turbine Low Vacuum

汽轮机真空是影响机组运行经济性的主要因素,凝汽器真空下降是汽轮机实际运行过程中常见的问题之一,造成机组真空下降的原因很多。文章通过阐述汽轮机凝汽器真空形成的原理,从抽真空系统和密封蒸汽系统两方面分析了影响机组真空的主要因素,并针对这些影响真空的主要因素提出了预防措施。

The turbine vacuum is the main factor of influencing unit operating economical efficiency, the condenser vacuum decline is one of the common problems in the course of the turbine practical operation,and lots of factors can induce this result. The paper expounds the principle of vacuum formation of turbine condenser,and analyses the main factors of influencing unit vacuum from two aspects of vacuum pumping system and seal steam system,and puts forward preventive measures aiming at the main factors.