To provide a sterilization method extensively improving a sterilization function with respect to a heat exchanger for cooling in a cooling chamber, in regard to a chiller provided with a cold air cooling function.
The composite chiller 1 is equipped with the cooling chamber 5 housing a cooling reception object, a cold air cooling part 10 carrying out the cold air cooling of the cooling reception object, a vacuum cooling part 20 carrying out the vacuum cooling of the cooling reception object, a hot water jetting part 30 jetting out hot water for sterilizing the heat exchanger 11 for cooling the cold air cooling part 10 by high temperature treatment, and a control part 50 carrying out the control of the whole of the composite chiller 1. During sterilization treatment, after carrying out pump down operation (S11), hot water is jetted on the heat exchanger 11 for cooling from the hot water jetting part 30 (S12) to carry out the sterilization treatment by high temperature treatment. During hot water jetting, it is monitored that pressure in the heat exchanger 11 for cooling does not reach predetermined pressure or higher (S13), and the reaches the predetermined pressure or higher, the pump-down operation is carried out again (S14).
MATSUNAGA KATSUTOSHI
HORIKAWA SHINJI
NISHIUCHI SHOHEI
MUTA JUNICHI
MIURA PROTECH LTD
JP2007240137A | 2007-09-20 | |||
JP2004202223A | 2004-07-22 | |||
JPH02217780A | 1990-08-30 | |||
JPH11142003A | 1999-05-28 | |||
JP2004145516A | 2004-05-20 | |||
JP2007240137A | 2007-09-20 | |||
JP2004202223A | 2004-07-22 | |||
JPH02217780A | 1990-08-30 | |||
JPH11142003A | 1999-05-28 |
WO2007094141A1 | 2007-08-23 |