. American engineer and railroad journal . SUPERHEATER TUBES. common flange, which is secured to the face of the .steam col-lector by a single central bolt. Superheater flanges and steamcollector are both machined for the superheater gaskets. Theconstruction of the steam collector, and its connections to thesteam pipes and steam chests are such that the steam has to passthrough all the superheater tubes simultaneously on its way fromthe boiler to the cylinders. The main features of this type lie in its thorough interchange-ability and accessibility. Each individual superheat element canbe remo
. American engineer and railroad journal . SUPERHEATER TUBES. common flange, which is secured to the face of the .steam col-lector by a single central bolt. Superheater flanges and steamcollector are both machined for the superheater gaskets. Theconstruction of the steam collector, and its connections to thesteam pipes and steam chests are such that the steam has to passthrough all the superheater tubes simultaneously on its way fromthe boiler to the cylinders. The main features of this type lie in its thorough interchange-ability and accessibility. Each individual superheat element canbe removed and examined without disconnecting the whole ar- 56 I^KMHrARV. 191 I. AMERICAN ENGINEER AND RAILROAD JOURNAL. 57. APPLICATION OF SUPERHEATER TO C. & N. W. PACIFIC TYPE LOCOMOTIVE. rangement, by merely loosening the single nut securing it in po-sition. At the same time the flue tubes are rendered thoroughlyaccessible for cleaning and inspection. In its application to this locomotive the superheater is de-signed to give an average temperature of 600 degrees F. Therear bend is only 24 in. from the b&ck flue sheet which is some-what nearer than has heretofore been customary in Americanlocomotive practice, but which tends to give a higher degree ofsuperheat. A heating surface of 691 sq. ft. is provided, which is21 per cent, of the total evaporating heating surface and about23 per cent, of the evaporating tube heating surface. Extendedpiston rod and valve rods are employed, thereby reducing thefriction on these parts and making their proper lubrication both the saturated and superheater steam engines, steam isdistributed to the cylinders by 14 piston valves, actuated by asimple design
Size: 2229px × 1121px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
