Biological safety type zymophyte liquid hollow fiber ultrafiltration system

The utility model discloses biological safety type zymophyte liquid hollow fiber ultrafiltration system. A fermentation tank, an ultrafiltration tank, an ultrafilter and a disinfection tank are connected through a totally closed pipeline for transportation and ultrafiltration, so that in one aspect, external microbial pollution is prevented, and in the other aspect, a zymophyte liquid is prevented from leaking; as needed, each device is independently cleaned and disinfected or the whole ultrafiltration system is cleaned and disinfected at a time through opening or closing (controlling) all valves. The biological safety type zymophyte liquid hollow fiber ultrafiltration system is simple and practical in structure, simple, convenient and rapid to operate, and low in manufacturing cost; a pump (5) adopts a sanitary centrifugal pump and is provided with a flow sensor; a pressure sensor and a liquid level sensor or a liquid volume sensor are further arranged in the ultrafiltration tank, and the ultrafiltration met