| 摘要 |
PURPOSE:To increase the efficiency of the compressor by preventing the pressure in the system from becoming negative, controlling a rise in the pressure and minimizing the pressure difference between the low-pressure side and the high-pressure side in the system, by a method wherein a non-azeotropic mixture of a high-boiling point component flon and a low-boiling point component flon is made to act as an operating medium and the low-boiling point component of the operating liquid is circulated through the low-pressure side in a quantity larger than through the high-pressure side in the system. CONSTITUTION:The operating medium which has become a high-temperature and high-pressure gas by being compressed by the compressor is condensed to become liquefied by the condenser 3 and separated into a gas and a liquid through a gas-liquid separator 4. In the separator 4, the gas-phase side has a composition containing a greater amount of low-boiling point component that the liquid-phase side while the liquid-phase side has a greater amount of high-boiling point component than the gas-phase side. The liquid-phase operating medium in the gas-liquid separator 4 is decompressed by the second decompressor 10 and then exchanges heat with the gas-phase operating medium in the gas-liquid separator in the heat exchanger 5. The operating medium condensed by the heat exchanger 5 is fed to the heat collector 7 through the decompressor 6, vaporizes to become gasified by absorbing solar heat and after further vaporizing in the heat exchanger 8, it is sucked into the compressor 2 together with the operating medium returned between the heat collector 7 and the compressor 2. |
