| 摘要 |
<p>A fluid tube boiler is disclosed wherein the heat exchanging tubes, associated headers, etc, are all cast iron. The tubes are cast with heat exchanging fins forming an integral part thereof whereby a maximum heat transfer area is provided with a minimum mass of cast iron. The various headers, manifolds, etc., which are interconnected with the tubes for distributing the fluid to the tubes are also of cast iron. The various castings are interconnected and arranged to insure an essentially uniform distribution of the fluid throughout all of the heat exchanging parts of the boiler whereby uniform circulation and heat transfer is maintained.</p> |
