Water bath type sterilization tunnel

The utility model discloses a water bath type sterilization tunnel and belongs to the technical field of dairy product sterilization equipment. The water bath type sterilization tunnel is divided into five layers from top to bottom, a top layer is a heating sterilization layer, a second layer is a heat-insulation layer, a third layer is a cooling layer, a fourth layer is a buffer layer, a fifth layer is a fan air-drying layer, a heating water tank is arranged in the top layer, a heat-insulation water tank is arranged in the second layer, a cooling water tank is arranged in the third layer, a small section of chain net conveying belt is arranged in the fourth layer, and a fan and an air-drying channel are arranged in the fifth layer. The sterilization tunnel adopts a stacked structure, so that the occupied area can be reduced, the energy loss and the water loss can be reduced, the temperature can be reasonably controlled by a temperature controller, the water temperature is increased by the aid of steam and a heating plate, and the sterilization quality can be guaranteed; a double-layer air-drying technology is adopted, so that the problem of the low air-drying speed due to single-side air drying is solved effectively; meanwhile, the sterilization tunnel has the advantages of simple structure, reasonable technology, high automation degree and convenience in operation.