| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce running cost without accompanying temperature rise of evaporative liquid for cold when a temperature of a condenser side becomes lower than a temperature of an evaporator side by lowering of atmosphere temperature in an evaporation type cooing device for liquid comprising an evaporator 1 for boiling and evaporating the evaporative liquid for cold under reduced pressure, a condenser 2 for condensing the steam, an indirect heat exchanger 6 for cold at a load 14 side, a heat exchanger 11 for cooling by atmospheric air, circulating means 5, 7 for cold, circulating the evaporative liquid for cold of the evaporator to the indirect heat exchanger for cold, and circulating means 10, 12 for cooling, circulating the evaporative liquid for cooling of the condenser to the heat exchanger for cooling, and further provided with a steam compressor 20 in a steam duct 19 from the evaporator to the condenser. <P>SOLUTION: A bypass steam passage 22 bypassing the steam compressor is formed in the steam duct 19, an opening and closing valve 23 is disposed in the bypass steam passage, and an operation of the steam compressor is stopped, and the opening and closing valve is opened when the temperature at the condenser side becomes lower than the temperature at the evaporator side. <P>COPYRIGHT: (C)2009,JPO&INPIT |
