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制氦装置应用三偏心真空蝶阀密封圈的探索

Seal Ring Exploration of Triple Eccentric Vacuum Butterfly Valve for Helium Making Device
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摘要 基于氦气本身特性、制氦装置高密封性要求以及液氦资源经济性的考虑,以三偏心蝶阀为研究对象,对制氦装置用密封圈设计进行了多方面的探索和研究。首先针对多种密封圈方案进行尝试,探讨其各自的优缺点和局限性。然后提出了一种采用金属骨架橡胶密封圈来有效解决真空密封问题的设计,并从密封性、工作力矩及寿命等方面对该设计进行了理论和试验验证。最后对该设计的整体经济性进行了阐述。该金属骨架橡胶密封圈设计能充分满足常温下制氦装置中调节蝶阀的密封要求。 Based on the characteristics of helium,the requirements of helium making device for excellent sealing performance,and the economy of liquid helium resources,taking the triple eccentric butterfly valve as the research object,the design of the sealing ring for helium making device was explored and studied from many aspects.Firstly,a variety of seal solutions were tested to explore their advantages,disadvantages,and limitations.Then,a design of metal skeleton rubber sealing ring was proposed to effectively solve the vacuum sealing problem in the structure of the triple eccentric butterfly valve.The design was experimentally and theoretically verified from the aspects of tightness,working torque and lifetime.Finally,the overall economy based on the design was described.This design of the metal skeleton rubber sealing ring provides a relatively perfect scheme for the sealing requirement of regulating butterfly valve in helium production device at room temperature.
作者 周位伟 刘诗梅 郝娇山 张黎 周枭 王佩东 ZHOU Wei-wei;LIU Shi-mei;HAO Jiao-shan;ZHANG Li;ZHOU Xiao;WANG Pei-dong(Chongqing Chuanyi Control Valve Co.,Ltd.,Chongqing 400700,China)
出处 《真空》 CAS 2024年第6期48-53,共6页 Vacuum
基金 重庆市经信委技术创新项目(渝经信科技[2022]16号)。
关键词 真空阀门 三偏心蝶阀 真空密封结构 真空骨架密封圈 vacuum valve tri-eccentric butterfly valve vacuum sealing structure vacuum skeleton sealing ring
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