| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerating system which is abundant in stability and economical efficiency by raising the compression efficiency as well as downsizing a heat-exchanging means for condensation. SOLUTION: This is a refrigerating system where a freezing cycle for getting cold for freezing and cooling is made of a compressor 1, a heat converting means 2 having a function of converting the heat energy that refrigerant gas possesses into kinetic energy and besides changing the gas-liquid phase in the process of that conversion, a decompression means 3, and a cooler 4. The heat converting means 2 is constituted of a single group of a thermal conversion unit consisting of a series-connected pipe line composed of the first-stage coil thin pipe line 5 which is made by winding a small-diameter heat conductive pipe into coil form, a large-diameter short pipe 7 which has a wider sectional area for circulation as compared with the above heat conductive pipe, and the second-stage coil thin pipe line 6 of structure analogous to the first-stage coil thin pipe line 5, or a plurality of groups where those thermal conversion units are connected in parallel.
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