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超重力旋转床是80年代出现的新型传质设备,该设备利用远大于重力的离心力,极大地强化了气液或液固间的接触,增强了传质效果.在相同的传质条件下,与重力场中的设备相比,该设备的体积小、操作强度大、体积传质系数K_(La)大,可广泛适用于各种气液传质.也适用于液固传质.理论研究由传统的重力作用下的传质发展到超重力场作用下的传质.本文对近年来关于超重力旋转床中的液膜厚度、比表面积、传质系数等的研究结果作了综述、分析和研究.
The super gravity rotating bed is a new type of mass transfer equipment appearing in the 1980s, which utilizes centrifugal force far greater than gravity to greatly enhance the liquid-liquid contact and enhance the mass transfer effect. Under the same mass transfer conditions, Compared with the equipment in the gravitational field, the equipment is small in size, large in operation strength and large in mass transfer coefficient K La, and can be widely used in various gas-liquid mass transfer and liquid-solid mass transfer. The mass transfer under the action of traditional gravity develops to the mass transfer under the action of the super gravity field.In this paper, the research results on the film thickness, specific surface area, mass transfer coefficient and other factors in the supergravity rotating bed have been reviewed and analyzed And research.