| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulation passage for drying in a dry cleaning apparatus using n-propyl bromide having a low solvent steam pressure. SOLUTION: In this circulation passage for drying in a dry cleaning device using n-propyl bromide, a constitution with a heat exchange coil 1 of a refrigeration unit immersed in a main solvent tank 9 is applied for the circulation passage for drying. The tank 9 is connected to a drum 2 through pipes 12, 13, 14, and 15 for drying air at an upper end part of it. Coolant for passing air is composed on a free surface of solvent in the tank 9.
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