长寿可靠型连杆式切断蝶阀设计研究开发

Research and Development of Long-life and Reliable Connecting Rod Type Shut-off Butterfly Valve Design

长寿可靠型连杆式切断蝶阀是一种长寿、可靠、安全、高效的中高温气体切断蝶阀,在高炉炼铁系统中用作煤气、空气或烟气管道的切断阀门,应用范围越来越广泛,逐步取代了笨重的闸阀。主要介绍了长寿可靠型连杆式切断蝶阀新的设计理念和结构优化设计方案,对蝶阀四杆机构运动轨迹进行了研究分析,提出了密封补偿机理研究分析理论,优化了密封副设计和材质选择。还介绍了长寿可靠型连杆式切断蝶阀寿命试验及其结果,为连杆式切断蝶阀的工作状况、实际性能等各方面的研究提供了试验数据支撑,对阀门结构优化设计提供了依据。寿命试验对比测量了纳米材料复合电镀自润滑轴套与普通铜基自润滑轴套磨损量,为深入研究长寿可靠型连杆式切断蝶阀长寿安全可靠免维护性能提供了试验条件和技术支撑。

A long-life ＆ reliable connecting rod type shut-off butterfly valve is a kind of high temperature gas shut-off valve with long life, reliable,safe and efficient features.It is applied wider and gradually replaces the heavy gate valve as shut-off valve in gas pipeline,air pipeline or flue gas pipeline in blast furnace iron-making process.The new design concept and the structure optimization design scheme of the long-life and reliable connecting rod type shut-off butterfly valve are introduced.The trajectory of the four bar linkage mechanism is analyzed,the sealing compensation mechanism is presented,the sealing design and material selection are optimized,and the experiment of the valve life and its results are also described in detail.The experiment results provide the data support for studying the working condition,the actual performance and other aspects of the long-life ＆ reliable connecting rod type shut-off butterfly valve, the basis for the valve structure optimization design,also verify the wear result between the nano-materials composite electroplating self lubrication bearing and ordinary copper base self lubrication bearing.