Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . it with some non-corrosive adhesive mix-ture, such as cement or red lead and oil. The patch is thenagain put in place, and bolted up through the draw body holes in the drum may then be drilled through thepatch in position; the riveting and calking may then be doneas previously explained. The Heine water-tube boiler shown in Fig. 27 differs in 154 LAYING OUT FOR BOILER MAKERS many respects from that shown in Fig. 26. Th
Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . it with some non-corrosive adhesive mix-ture, such as cement or red lead and oil. The patch is thenagain put in place, and bolted up through the draw body holes in the drum may then be drilled through thepatch in position; the riveting and calking may then be doneas previously explained. The Heine water-tube boiler shown in Fig. 27 differs in 154 LAYING OUT FOR BOILER MAKERS many respects from that shown in Fig. 26. The mud col-lector is located in the steam drum, as shown at M. Thewater legs are strengthened with hollow stays, as J-^-S^ andthe back water leg rests on rollers at R-R. As the deviationfrom the horizontal in this boiler is small, the tubes may bereadily renewed. After cutting out, as in the previous case,an ordinary fire-tube expander may be used on this type ofboiler, providing the guard has been removed, and an exten-sion fitted to the mandrel pin. In isolated places, when a tube gives out and none are athand, a temporary repair may be made by swaging a short. FIG. 29. plied, and if handled properly will do the next best thing to-a permanent job. A peculiar shaped, but very efficient, type of steam genera-tor, is shown in Fig. 28. It is known as the Stirling water-tube boiler, and consists of three upper steam and water cham-bers, and one lower large drum, all connected by stacks ofnearly vertical 3K-inch tubes, as shown in the end view. Thehot gases strike the first row of tubes near the bottom, andare guided by a partition throughout their length to the top,,where they cross over and strike the second stack of tubesat C, thence ranging downwards to the bottom drum, and upthe last stack of tubes to the atmosphere. The circulation of the water is rapid and positive, and takesplace as follows: The hot water, with the steam bubbles inentrainment rise through the two front stack
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Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
