| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a combustion device reducing NOx and odor during fire extinguishing of vaporization type premixed combustion. <P>SOLUTION: The combustion device includes: a bottomed cylindrical vaporization cylinder 1 having a heating heater 2 and premixing vaporization gas with combustion air; and a topped cylindrical burner head 6 burning premixed air from the vaporization cylinder 1 by a plurality of burner ports 7, 8, 9 installed on a peripheral wall thereof. A wire mesh-shaped outer net 10 is provided on an outer peripheral wall of the burner head 6 so as to come into close contact with the wall surface, and a noble metal catalyst 12 is supported by the outer net for catalyst combustion at a low air fuel ratio. Furthermore, a burner head ring 13 having a secondary air hole 14 located on a bottom thereof is provided on the outer periphery of the burner head 6. Thus, while NOx during combustion is reduced, odor during fire extinguishing is also reduced, so as to enable safe use all the time. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
