| 摘要 |
PROBLEM TO BE SOLVED: To effectively recover and use the heat given from a workpiece to a coolant while quenching the workpiece by performing the thermoelectric conversion of the exhaust heat in a cooler. SOLUTION: Thermoelectric converters 3, 4 are arranged in a circulation path 2 which is communicated with an outlet 8 and an inlet 9 of a quenching tank 1 to circulate a quenching oil 7 at the outside of the quenching tank 1. The cooling water is fed to thermoelectric converters 3, 4 from water feeders 11, 12. A thermoelectric conversion module 23 is arranged between a quenching oil path 21 and a cooling water path 22 in the thermoelectric converters 3, 4, and the power generated in the thermoelectric conversion module 23 is stored in an electricity storage device 6 while the sensible heat of the quenching oil 7 is emitted into the cooling water in the cooling water path 22. COPYRIGHT: (C)2007,JPO&INPIT
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