Patent ID: 8262066
Filing Date: 2012-09-11
Classification: A23C,A23L,F04D,F28C

Abstract:
1. A vapor contact-type heat sterilization device comprising: a vapor mixing pump which transfers a liquid food with an increase in pressure by the action of a rotor, and which mixes vapor into the liquid food in a midway of pressurizing the liquid food, thereby heating the liquid food up to a sterilization temperature; a vapor supply region which is arranged inside the vapor mixing pump and supplies the vapor to the liquid food, the vapor having a higher pressure than a pressure of the liquid food; and a back pressure regulating valve which is arranged downstream of the vapor mixing pump, wherein the vapor mixing pump includes wherein the casing comprises a supply port for the vapor, wherein the supply port opens at a position along the fluid pressurizing duct, except for at an entrance of the fluid pressurizing duct, at which the liquid food is transferred from the inlet portion to the outlet portion with the increase in pressure, the vapor supply region being arranged at an opening portion of the supply port, and wherein the back pressure regulating valve maintains the pressure of the liquid food at the outlet portion and downstream of the outlet portion so as to be higher than a pressure of the vapor at the supply port for the vapor.