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介绍了双偏心柔性密封球阀的工作原理和结构特点,阐述了该阀的诸多性能优势,如流通能力强、启闭速度快、扭矩式密封、欠缝自补偿、摩擦阻力小、阀门寿命长等。通过选择不同密封材料,适用于低中高温及含有固体颗粒等较为苛刻的介质工况。当前,双偏心柔性密封球阀已在化工过程中一些新装置建设和老装置改造中取代了一部分闸阀而得到应用,效果良好。
This paper introduces the working principle and structural features of the double eccentric flexible sealing ball valve, and expounds many performance advantages of the valve, such as strong flow capacity, fast opening and closing speed, torque seal, self-compensation of the slits, small frictional resistance and long valve life . By selecting different sealing materials, suitable for medium and low temperature and contains solid particles and other more demanding medium conditions. At present, the double-eccentricity flexible sealing ball valve has been applied in the construction of some new devices and the old devices in the chemical process to replace some of the gate valves, and the effect is good.