| 摘要 |
PROBLEM TO BE SOLVED: To obtain a steam heating equipment capable of reducing the operation frequency of a condensed water recovery device. SOLUTION: The jacket part 25 of a reaction vessel 20, the condensed water recovery device 24 and a condensed water recovery pipe 29 are connected through a negative pressure/positive pressure changeover valve 22. The negative pressure/positive pressure changeover valve 22 has a fluid inlet 2, a negative pressure fluid outlet 4 and a positive pressure fluid outlet 5. Only when negative pressure condensed water flows in from the fluid inlet 2, condensed water is discharged to the condensed water recovery device 24 from the negative pressure fluid outlet 4. When a positive pressure fluid flows in from the fluid inlet 2, it is discharged to the condensed water recovery pipe 29 from the positive pressure fluid outlet 5. COPYRIGHT: (C)2004,JPO
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