NOVELTY - A single reflection high-gravity device comprises impinging stream structure (1) and rotating packed bed in which rotating packed bed comprises shell, hollow annular rotor, filler, and rotating shaft, impinging stream structure is non-limiting impinging stream structure, impinging stream structure comprises main feeding pipe having different diameter, sleeve, and liquid baffle plate, diameter of sleeve is greater than diameter of main feeding pipe, sleeve is set with main feeding pipe, and main feeding pipe is far from 1 end of liquid baffle plate and set with main feeding pipe inlet.    USE - A single reflection high-gravity device for continuous preparation of methanol-diesel oil emulsion (claimed).    ADVANTAGE - Device is easy to maintain and has improved impact effect of 2-phase flow, strong processing capability, large capacity, and short reaction time.    DETAILED DESCRIPTION - A single reflection high-gravity device comprises impinging stream structure (1) and rotating packed bed in which rotating packed bed comprises shell, hollow annular rotor, filler, and rotating shaft, impinging stream structure is non-limiting impinging stream structure, impinging stream structure comprises main feeding pipe having different diameter, sleeve, and liquid baffle plate, diameter of sleeve is greater than diameter of main feeding pipe, sleeve is set with main feeding pipe, main feeding pipe is far from 1 end of liquid baffle plate and set with main feeding pipe inlet, other end of liquid baffle plate is set with expanded main feeding pipe nozzle, central end of main feeding pipe nozzle is provided with discharging hole, sleeve is set with sleeve feeding port which corresponds to end of main feeding pipe inlet, 1 open end of sleeve is corresponded to main feeding pipe nozzle, ring other open end formed, joint of sleeve and end of main feeding pipe nozzle, discharging hole and circular seam are set on same plane, liquid baffle plate is vertically set with axis of main feeding pipe and sleeve, center of liquid baffle plate is located on axis of main feeding pipe and sleeve, non-limiting impinging stream structure is set with cavity of hollow annular rotor and along rotor axis direction, main feeding pipe nozzle and circular seam are connected with liquid baffle plate and central line of rotating shaft, hollow annular rotor is located on middle of shell, filler is located on hollow annular rotor, main feeding pipe inlet and diesel oil storage tank (3) are connected, sleeve feeding port and methanol storage tank (5) are connected, and rotating packed bed liquid outlet and product storage tank (6) are connected. An INDEPENDENT CLAIM is included for continuous preparation of methanol-diesel oil emulsion which involves adding hydrophilic emulsifier and co-emulsifier into methanol storage tank, uniformly mixing, forming aqueous phase, adding lipophilic emulsifier into diesel oil storage tank under stirring condition, forming oil phase, mixing aqueous phase and oil phase through impinging stream structure, colliding, entering into filler, strongly shearing material having high turbulent energy dissipation rate, and forming in which uniform mixing does not meet rapid completion of mixed liquid.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of single reflection high-gravity device for continuous preparation of methanol-diesel oil emulsion.    Impinging stream structure (1)    Aqueous phase conveying pump (2)    Diesel oil storage tank (3)    Methanol storage tank (5)    Product storage tank (6)