| 摘要 |
<p>A marine boiler providing excellent energy-saving effects is obtained by achieving a reduction in fuel consumption of a combustion boiler. In a composite boiler (9), a combustion boiler (4) having a built-in first smoke tube (3) for allowing combustion exhaust gas of a combustion device (2) to flow and a host equipment exhaust heat recovery boiler (6) having a built-in a second smoke tube (5) for allowing host equipment exhaust gas to flow are combined in a first water chamber (1) to separately install exhaust gas outlets (7, 8) of the combustion boiler (4) and the host equipment exhaust heat recovery boiler (6). Further, an auxiliary equipment exhaust heat recovery boiler (10) for recovering the heat of exhaust gas of auxiliary equipment and the composite boiler (9) communicate by way of connecting boiler water, and steam generated from the auxiliary equipment exhaust heat recovery boiler (10) is supplied to steam-using equipment through the water chamber (1) of the composite boiler (9). Consequently, by effectively using the exhaust heat of the auxiliary equipment, it is possible to reduce fuel consumption in the combustion boiler (4).</p> |
