. American engineer and railroad journal . er hour from feed water at 100 (legs. to steam at711 lbs. pressure, and they are designed for 50 per cent, over-load rapacity. The boilers are carried upon wrought iron supports, entirelyindependent of the brick work, and expansion is carefully pro-vided for to insure air-tight settings. The details of the set-tings, and the provision for the superheater tubes, are shown, nections for by-passing, so that the boilers may deliver satu-rated steam, if desired. The superheater fittings are of extraheavy cast iron, of special mixture for this service.
. American engineer and railroad journal . er hour from feed water at 100 (legs. to steam at711 lbs. pressure, and they are designed for 50 per cent, over-load rapacity. The boilers are carried upon wrought iron supports, entirelyindependent of the brick work, and expansion is carefully pro-vided for to insure air-tight settings. The details of the set-tings, and the provision for the superheater tubes, are shown, nections for by-passing, so that the boilers may deliver satu-rated steam, if desired. The superheater fittings are of extraheavy cast iron, of special mixture for this service. The super-heaters are designed to raise the temperature of steam de-livered from each boiler, at its rated pree lbs. persq. in., to 550 degs. F.; this provides that the temperature bemeasured at points in the main steam header 5 ft. beyond theboiler, and with the turns e gases leaving the boiler at notover 600 degs. F. The stokers are the we\l known Roney stokers, installed byWestinghouse, Church, Kerr & Co., and are arranged for easy. scct/ow a-a. DETAILS OF nil FLUE CONBTBUOTIOS AND KCONOM IZK» SETTING, SHiiwum. BY-PASS TO SUCK. in general, in the drawings. All brickwork showing at thefronts is of white enameled brick. Further interesting detailsof the boiler equipment are given in the following table: BOILERS. Nominal Horse Power 500 H. P. Heating Surface 5,000 sq. ft. Working Pressure 150 lbs. Test Pressure after erection 200 lbs. No. of Sections 21 No. of Tubes 252 Kind of Tubes Knobbled. Hammered Charcoal Iron Diameter of Tubes 4 inches Length of Tubes 18 ft. No. of Steam Drums 3 Length of Steam Drum 23 ft. 3 % ins. Diameter of Steam Drum 36 ins. Thickness of Steam Drum Plate % in. No. of Mud Drums 1 Diameter of Mud Drum 12 ins. Length of Mud Drum 12 ft. 6 ins. Thickness of Mud Drum Plate Hi ins. Size of Steam Opening >. 10 ins. Number and Diameter of Dry Pipes 3—5 in. Outside Dimensions of Setting 23 ft. 3 ins. by 15 ft. Maximum Height of Boiler Above Floor Level 1
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
