| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerating system eliminating an expansion valve and omitting measuring instruments and control equipment required for high precision control to reduce the occurrence frequency of failures or the like. SOLUTION: The expansion valve is eliminated, and an evaporator 16, a compressor 20, a condenser 18, a cooling tower 24 and load side connection piping 21 are connected as a sealed system. A vacuum state is created inside to operate the compressor 20. Steam in the evaporator 16 thereby evaporates to lower the internal temperature of the evaporator 16. After compressing the steam by the compressor 20, the steam having a high temperature is led to the condenser 18 and condensed in the condenser 18 by cooling water from the cooling tower 24 to become water again. The cooling water raised in temperature by the condensation of high temperature steam is fed to the cooling tower 24 or the like, and the heat is radiated to the outside by the cooling tower 24. Condensed water in the condenser 18 is returned to the evaporator 16 through the connection piping 17 connecting the condenser 18 and the evaporator 16, to maintain the water level difference corresponding to the pressure difference between both containers. COPYRIGHT: (C)2006,JPO&NCIPI
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