. American engineer and railroad journal . CNOSlNuewS *I£CE3 ANDA/tftAHGiMCNT 0£ TUSSSON AW£A/lJVt€£D SCAl£ Fig. THE LAGRAFEL DALLEST BOILER. these nests of tubes is located directly over the grates, and is amodification of the water-tube boiler made by the same firmfor stationary purposes. It consists of a number of pairs offront tubes of sinuous shape, which are connected with eachother by means of separate groups of tubes, as the lower por- the connecting tubes to the other side, and thence back andforth till it enters the upper header, from which it is deliveredinto the boiler. In this
. American engineer and railroad journal . CNOSlNuewS *I£CE3 ANDA/tftAHGiMCNT 0£ TUSSSON AW£A/lJVt€£D SCAl£ Fig. THE LAGRAFEL DALLEST BOILER. these nests of tubes is located directly over the grates, and is amodification of the water-tube boiler made by the same firmfor stationary purposes. It consists of a number of pairs offront tubes of sinuous shape, which are connected with eachother by means of separate groups of tubes, as the lower por- the connecting tubes to the other side, and thence back andforth till it enters the upper header, from which it is deliveredinto the boiler. In this header the water circulation is en-tirely mechanical or foiced, and depends upon the running ofthe feed-pump. The heating surface of the heater is usually Vol. LXVIII, No. 12.] AND RAILROAD JOURNAL. 549 one-sixth that of each of the boilers, and as it is the coolestpart of the boiler, it is not to be supposed that the escapingproducts of combustion can be hot enough to raise this waterup to the temperature of evaporation, so there is no genera-tion of steam in the heater, but this first occurs in the boilerits
Size: 2277px × 1097px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
