摘要
阀门作为流体输送系统中的重要控制装置,其产品的性能对整套装置系统的安全、稳定、可靠运行起着至关重要的作用。阀门的性能与制造工艺密切相关,在现代工业技术急速迭代的今天,阀门零件的材料、加工及检测工艺已经达到了相当高的水平,可以完全满足不同行业的需求。三偏心蝶阀是具有力矩密封典型特征的回转型阀门,在装配、调试、密封性能检测、功能性试验等关键环节都需要驱动机构持续输出并保持一定的扭力。由于在经济性、技术成熟度、战术布局等方面的差异,大多企业在研究开发和生产制造中没有针对此类阀门专用的扭力供给设备,而是使用精度和效率都较低的手动减速器或气动执行器等作为临时驱动校验设备。这就使阀门在研发周期内获取的基础数据可靠性不高,量产时生产效率较低,运行过程性能不稳定。特别是在中大口径、高压力等较大扭矩需求的领域,在考虑充足启闭安全系数的情况下,成套阀门性价比和竞争力都显著降低。
Valve as an important control device in the fluid conveying systems,the performance of its products plays a vital role in the safe,stabilization and reliable operation of the entire device systems.The performance of the valve is closely related to the manufacturing process,in the rapid iteration of modern industrial technology today,the materials,processing and testing methods of the valve parts has reached a very high level,which can fully meet the needs of different industries.The triple offset butterfly valve is a rotary valve with typical characteristics of torque seal.In the key process of assembly,adjustment,sealing performance testing,functional testing and so on,the driving mechanism needs to continue to output and maintain a certain torque.Due to differences in economy,technology maturity,tactical layout,etc.,most enterprises do not have special torque supply equipment for such valves in R&D and manufacturing.but use manual gearbox or pneumatic actuators with low accuracy and efficiency as temporary drive verification equipment.This makes the basic data obtained in the development cycle of the valve is not reliable,the production efficiency is low in mass production,and the operation process performance is unstable.Especially in the field of large torque demand such as large DN and high pressure,the cost performance and competitiveness of complete sets of valves are significantly reduced when considering the sufficient safety factor of opening and closing valve.
作者
刘维军
王习农
LIU Wei-jun;WANG Xi-nong(Bray(China)Control System Co.,LTD,Hangzhou 311231,Zhejiang,China)
出处
《阀门》
2024年第7期899-903,共5页
Chinese Journal of Valve
