| 摘要 |
PROBLEM TO BE SOLVED: To provide drain piping provided with an oil/water separating mechanism, which is resistant to the occurrence of pipe clogging in the drain piping by selectively collecting an oil contained in drainage, which may cause the pipe clogging, from the drainage and by separating the oil content from the drainage although partially. SOLUTION: The drain piping includes the oil/water separating mechanism 1 and a storage tank 2. The oil/water separating mechanism 1 is provided in the interior of the drain piping and separates the oil contained in the drainage, and the storage tank 2 stores the oil separated by the oil/water separating mechanism 1. Alternatively, the drain piping is provided with the drain piping, the oil/water separating mechanism 1, and a waste-oil passage. The oil/water separating mechanism 1 is provided in the interior of the drain piping and separates the oil contained in the drainage. The waste-oil passage discharges the oil separated by the oil/water separating mechanism 1 to the outside of the drainage passage. COPYRIGHT: (C)2011,JPO&INPIT
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