Development Of Large Rotating Packed Bed Based On ANSYS

As efficient mass transfer equipment, rotating packed bed(RPB) has a small volume and high efficiency, but when it was industrial enlarged, issues of liquid was sprayed uneven, resistance of pass into the gas was large and unable to operate continuousiy and stably exsisted. These issues restricted industrial promotion of RPB seriously. Stress and strain distribution of rotor was analyzed by ANSYS simulation in this thesis, structure optimization program was proposed and two types RPBs suitable for industrial enlarge were designed.Influence of support type, rotor diameter, rotational speed, the liquid quantity on stress and deformation of the rotor was researchded by ANSYS transient simulation firstly in this thesis. Structure optimization program was proposed according to the simulation results, and a rotor diameter of 1000 mm pilot rotating packed bed was designed, the rotor was supported on both ends, the gas capacity is 1130m3/h. A rotor diameter of 1500 mm pilot rotating packed bed was designed, the rotor was supported on a seat, the gas capacity is 3260m3/h. For each RPB, rotor shaft, import and export of gas and liquid pipe, packing rotor, barrel, liquid distributor were designed, the intensity of rotor shaft and packing rotor were calculated, the power of rotating packed bed to run was calculated.In this thesis, packing rotor was squirrel-cage rotor, packing rotor was supported by lateral support ribs, porosity was enhanced, resistance of pass into the gas was reduced. Liquid distributor is stationary because of using hollow rotary shaft to make sure liquid was sprayed evenly. The stability of continuous operation was increased by the structure of both-ends support and seat support. In addition bearing support RPB bed does not need to be dynamic sealing device, can realize gas forced cross-flow.