| 摘要 |
PROBLEM TO BE SOLVED: To further improve heat efficiency in comparison with a conventional steam generator and energy saving effect and to contribute on environment protection. SOLUTION: This steam generator 100 has a natural refrigerant heat pump 10, a decompression boiling tank 20 receiving hot water from the natural refrigerant heat pump 10, and a compressor 30 for compressing the steam from the decompression boiling tank 20. The steam generator 100 preferably has an accumulator 40 for storing high-pressure steam compressed by the compressor 30, and further preferably has a hot water tank 15 receiving the hot water from the natural refrigerant heat pump 10 and supplying the hot water to the natural refrigerant heat pump 10. Further a control device 50 is disposed to operate the compressor 30 on the basis of pressure and temperature information in the accumulator 40. COPYRIGHT: (C)2008,JPO&INPIT
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