| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operational efficiency of a freezer by making the running cost of defreezing low and guiding to a condenser of the freezer an antifreezing solution which temperature is lowered by dissipating heat in a heater. SOLUTION: An inlet 42 of a heater 4 of a defreezing chamber 1 and a high temperature side of an antifreezing solution tank 13 are connected through a defreezing chamber antifreezing solution supply pipe 43, and a heater outlet 44 in the defreezing chamber and a low temperature side upper part of the antifreezing solution tank are connected through an antifreezing solution return pipe 45. Further, a low temperature side lower part of the antifreezing solution tank and refrigerant condensers 101, 102, 103 of a freezer adjacent to the defreezing chamber are connected through a refrigerant condenser antifreezing solution supply pipe 133. The antifreezing solution which dissipates heat in the heater and hence lowered in its temperature is guided to the refrigerant condenser of the freezer to lower refrigerant condensation temperature.</p> |
