发明名称 |
Small once-through boiler |
摘要 |
The present invention relates to a small once-through boiler, which can avoid burning caused due to excessive heating of water pipes and burning around a fire hole of a burner in particular and heighten the heat load of a combustion chamber to further reduce the size of the system as compared with a prior art boiler. In the small once-through boiler, at least one regenerative burner system 20 is provided in a combustion chamber 1, the regenerative burner system 20 carrying out supply of combustion air A and exhaust of combustion gas E through a regenerator 22 and relatively changing flows of the combustion gas E and the combustion air A with respect to the regenerator 22 so as to supply the combustion air A via the regenerator 22 heated by heat of the combustion gas; the water pipe group 4 is provided apart from the combustion chamber wall surface 3 to form a passage 12 between the rear surface of the water pipe group 4 and the combustion chamber wall surface 3; and communicating openings 10 and 11 through which the combustion gas C passes are formed between adjacent water pipes at upper and lower ends of the water pipe group 4 so that a part of the combustion gas C can pass through the passage 12 provided at the rear of the water pipe group 4, whereby a part of the combustion gas C flows from the lower communicating openings 11 into the passage 12 to move upward and again flows from the upper communicating openings 10 into the combustion chamber 1. <IMAGE> |
申请公布号 |
EP0786624(A2) |
申请公布日期 |
1997.07.30 |
申请号 |
EP19970300450 |
申请日期 |
1997.01.24 |
申请人 |
NIPPON FURNACE KOGYO KABUSHIKI KAISHA;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
MAMORU, MATSUO;RYOICHI, TANAKA;KAZUHISA, MITANI |
分类号 |
F22B21/06;F22B31/00;F22B31/08;F23L15/02 |
主分类号 |
F22B21/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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