| 摘要 |
A composite steam boiler using a dual pipe is provided to supply hot water by heating larger amount of water during less time with less amount of steam without discharging the steam to an outside of the composite steam boiler. A composite steam boiler using a dual pipe includes a heat exchange chamber(20) and a steam chamber(30). The heat exchange chamber includes a combustion chamber(10), a dual heat exchange pipe(21), guide plates, a waste gas passage(24), and a waste gas outlet(23). The combustion chamber includes a hot water path(11), a burner(12), and a window(13). The dual heat exchange pipe consists of inner and outer pipes(21-1,21-2) through which steam flows. The inner and outer pipes are vertically formed above the combustion chamber. Waste gas which is changed from the steam flows on the guide plates. The waste gas passage and the waste gas outlet are connected with each other. The steam chamber includes a waste heat collector(31), a hot water passage(32), steam guide plates(35), and a steam outlet(33). The waste heat collector is connected with the dual heat exchange pipe. |
