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梯形浮阀气流吹出时对液体产生分散力和导流力，使塔板的流体力学与传质性能有新的改变。系统的试验室研究证明了其结构的优越性。梯形浮阀已成功地应用于一座直径为φ2800mm／φ38000mm有48层塔板的原油常压蒸馏塔，改善了产品分割质量，提高了轻质油收率，取得了良好的经济效益。
Trapezoidal floating valve air flow blows on the liquid dispersion force and conductivity, so that the plate fluid mechanics and mass transfer properties of a new change. The systematic laboratory research proves the superiority of its structure. Trapezoidal valve has been successfully applied to a diameter of φ2800mm / φ38000mm 48-layer crude oil distillation column to improve the quality of product segmentation, increased light oil yield, and achieved good economic benefits.