| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a structurally simple boiler provided with two air conduits supplying air for combustion into a combustion chamber for regulating the total amount of blown air, for changing the ratio of distribution into each air conduit, and for preventing a burner from burning out in low combustion or a combustion gas from flowing backward. <P>SOLUTION: The air for combustion is split into a first air conduit 39 and a second air conduit 40 and supplied into a combustion chamber 6 after being supplied via a common air conduit 44. The common air conduit 44 is provided with a first damper 41. The second air conduit 40 is provided with a second damper 42. The first damper 41 regulates the overall amount of air supplied into the combustion chamber 6. The second damper 42 prevents the burner 5 from burning out or the combustion gas from flowing backward to the burner 5 from the combustion chamber 6 by not fully closing the burner 5 regardless of the combustion amount while combusting. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
