| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerating machine can efficiently cooling a heat generating part of an invertor unit. <P>SOLUTION: The turbo refrigerating machine 1 includes an air distribution fan 27 for supplying cooling air to the heat generating part in the invertor unit 25. The turbo refrigerating machine 1 further includes a heat exchanger 10 for cooling an invertor, to which a liquid refrigerant condensed by a condenser 5 is branched and guided for cooling the cooling air by evaporative latent heat of the liquid refrigerant, a flow rate adjustment valve 35 for invertor cooling refrigerant, adjusting a flow rate of the liquid refrigerant guided to the heat exchanger 10 for cooling the invertor, and a refrigerating machine control part 4 for controlling an opening of the flow rate adjustment valve 35 for invertor cooling refrigerant, so that a temperature of the heat generating part in the invertor unit 25 reaches a target temperature lower than an upper limit use temperature by a prescribed amount. <P>COPYRIGHT: (C)2012,JPO&INPIT |
