摘要
气蚀工况可以引起震动和噪音,导致控制阀阀内件的损伤,进而影响阀门本身的寿命和控制系统的稳定性以及过程工艺的安全性。该文阐述了阀门气蚀发生机理,并从阀门结构、材料选择、气蚀系数等方面提出了抗气蚀阀门的选型合理性的判定方法。
Vibration and noise could arise if countered cavitation service,consequently result in damage of valve trim. This could impact life time and stability of control valve and safety of plant process. This paper explain cavitation mechanism and present a selection way of anti-caviation valve by selection valve material,structure and a criteria of justification.
出处
《自动化与仪表》
2017年第4期36-37,66,共3页
Automation & Instrumentation
关键词
调节阀
闪蒸
气蚀
阻塞流
气蚀系数
control valve
flashing
cavitation
choke flow
cavitation index
