气动紧急切断阀紧急关闭防撞结构的研究  

Study on Anti-collision Structure of Pneumatic Emergency Shut-off Valve

作　　者：刘梦仙 李刚 李晓兰 张彬彬 Liu Mengxian;Li Gang;Li Xiaolan;Zhang Binbin(Tianjin Huayou Hanwei Technology Development Co.Ltd.,Tianjin,300074,China)

机构地区：[1]天津市华油汉威科技发展有限公司,天津300074

出　　处：《石油化工自动化》2022年第3期45-46,94,共3页Automation in Petro-chemical Industry

摘　　要：在遇到火灾和其他危险工况时,紧急切断阀在迅速关闭过程中,阀芯和密封组件之间会产生较大的冲击力,容易造成密封组件损坏,影响阀门密封性能。通过分析切断阀实现“快关慢合”的技术和现状,提出了一种紧急关闭防撞结构的设计,该设计方案利用调速阀改变导通气流的速度,调节紧急切断阀关闭瞬间阻力,从而提高切断阀的关闭速度。应用表明:该设计方案延长了阀门的使用寿命,保障了生产的安全性。In case of fire and other dangerous working conditions, During the process of the emergency shut-off valve quickly closes. a large impact force will be generated between the valve inserts and the sealing, which is easy to cause damage to the sealing and affect the sealing performance of the valve. By analyzing the technology and current situation of “quick breaking to slower end to close” of the shut-off valve, a design of emergency closing anti-collision structure is proposed. The design scheme uses the speed regulating valve to change the speed of the airflow, adjust the immediate resistance of the emergency shut-off valve, so as to improve the closing speed of the shut-off valve.The design scheme not only prolongs the service life of the valve, but also ensures the safety of production.

关 键 词：气动执行机构 气动偏心蝶阀 故障率 安全性 

分 类 号：TH138[机械工程—机械制造及自动化]