| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a freezer unit that prevents dew condensation in a vaporizer.SOLUTION: A freezer unit 1 including a compressor 11, a condenser 13, a decompression device 17, and a vaporizer 19 uses a non-azeotropic refrigerant mixture obtained by mixing two or more kinds of refrigerant differing in boiling point, and is provided with a contraction mechanism 40, which reduces the flow passage area of a refrigerant pipe 25 of the vaporizer 19 to generate pressure such that the temperature never falls below a dew condensation temperature, between an intake 19A and an outlet 19B of the vaporizer 19.</p> |
