The invention relates to the technical field of strain tanks, and discloses a strain tank with double sterilization methods, the strain tank comprises a tank body, a cover body, a stirring motor, a stirring rod and a
discharge pipe, the bottom surface of the tank body is fixedly connected with a steam
pipe, the upper surface of the cover body is provided with a fixing opening in a penetrating manner, and the inner wall of the fixing opening is connected with a telescopic
assembly; the other end of the telescopic
assembly penetrates into the tank body and is connected with an
ultraviolet lamp, the stirring rod is sleeved with the
ultraviolet lamp, the top face of the inner wall of the cover body is connected with an expansion-shrinkage
assembly, one end of the expansion-shrinkage assembly communicates with the end, away from the
ultraviolet lamp, of the telescopic assembly, and the steam
pipe communicates with the interior of the tank body. According to the strain tank with the double sterilization methods, the high-temperature
steam sterilization mode and the ultraviolet sterilization mode are combined, a complementary and synergistic sterilization
system is formed, and high-temperature-resistant microorganisms and bacterial spores can be effectively killed; through a linkage mechanism of the expansion and contraction assembly and the telescopic assembly, the ultraviolet lamp can automatically ascend and descend in the
sterilization process, and all-directional dead-corner-free sterilization in the tank body is achieved.