| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a boiler which enables easy arrangement of a pipeline during installation of the boiler and achieves compactification.SOLUTION: A boiler includes: a can body 10 which burns a fuel to heat a liquid and thereby generates steam; a water supply passage 20 which supplies the liquid to the can body 10; an air supply passage 30 which supplies combustion air to the can body 10; an exhaust passage 50 which is disposed at a side part of the can body 10 and exhausts a combustion gas generated by the can body 10; an economizer 60 which is disposed at the exhaust passage 50 and conducts heat exchange between a fluid circulating in the water supply passage 20 with the combustion gas circulating in the exhaust passage 50; an air heater 70 which is disposed at the downstream side relative to the economizer 60 in the exhaust passage 50 and conducts heat exchange between the combustion air circulating in the air supply passage 30 and the combustion gas circulating in the exhaust passage 50; and a blower 80 which is disposed near the air heater 70 and blows the combustion air to the air supply passage 30.</p> |
