| 摘要 |
PURPOSE:To make it possible to cool and heat apparatuses at evaporators, by passing a high-temperature high-pressure heat-transmitting medium from a compressor through a first branch pipe into a second evaporator via an inlet port, and circulating the heat-transmitting medium discharged from an inlet of the second evaporator to a radiator via a second branch pipe. CONSTITUTION:A refrigerant vapor brought to a high temperature and a high pressure by a compressor 1 is passed through a first branch pipe 10a, an ON-OFF valve 12b and a pressure control valve 5b into a second evaporator 4b. The refrigerant gives heat to an electronic apparatus or a material experiment device disposed on the second evaporator 4b, thereby being partially condensed into a liquid-vapor two-phase fluid, which flows through an ON-OFF valve 14b and a second branch pipe 10b into a piping 8a via a branch point 17, and is then cooled in a radiator 2, thereby being condensed into a high-temperature high-pressure liquid. At a first evaporator 4a, a low- temperature low-pressure liquid deprives an electronic apparatus of heat, thereby being partially evaporated to become a liquid-vapor two-phase fluid, which flows through a pressure control valves 5a and an ON-OFF valve 13a, and flows through a piping 8c into an accumulator 6, from which only the vapor is passed through a piping 8d to the compressor 1. |
