Document K6qR1XaxZ6KDy5MKoyaqXO4RN

$ |J$1 185,000 ! 'fl s111 POUNDS OF STEAM $ *`>1 I PER HOUR SP i I I ) for BOILER WATER CHEMICAL TREATMENTS Get the Complete Story at Booths 674-675 The necessity is well recognized for feeding various chemicals to boilers for the prevention of scale aod to control alkalinity, remove dissolved oxygen, protect against embrittlement and Insure against corrosion and pitting caused by impurities in the boiler feed water. Practically all competent authorities agree that two distinct methods for conditioning boiler water are necessary. sodium sulfite should be fed continuously to the suction side of the boiler feed pump to react with and remove any residual dissolved oxygen in the boiler feed water. This is necessary because oxygen in the water will act to corrode and pit the boiler feed water pump, economizers and boiler drums and tubes. StCOetd. other internal treating chemicals should be fed directly into the boiler drums to precipitate inemsting solids, to control alkalinity, and to give a chemical balance in the boiler to prevent corrosion and embrittlement. Typical Milton Roy "Packaged" Systems for boiler water treatment are illustrated above. These systems are complete, include all necessary solution tanks, covers, gage glasses, low-level cutouts and alarm*, motor starters and pumps as required. Automatic elec* tronic controls can be supplied to operate pumps at speeds proportional to feed water flow as measured by flow meters. Systems are available to handle all treating chemicals and to meet all capacity aod pressure requirements. See us at Graod Ceatral Palace, Booths 674*67) for complete information, Bulletin 4811 and Technical Paper No. )1 "What the Power Engineer Needi to Know about Chemical Peed Systems." 274 POWER DocomUr * Purchaser-- Pennsylvania Electric Company LocationFront Street Station, Erie, Pa. Number of Boilers . .2 Pounds of Steam/Hr. . 185,000 iff g8 (1I I Design Pressure . . . . 750 PSI Operating Pressure . . 675 PSI Total Temperature . . 835 F. Air Preheater-- Erie City Tubular--2 Pass Water Walls-- Erie City Bare Tube M ip Temperature of Air for Combustion--530 F. four additional Erie City Unit at higher preiture and temperature art now in pro* (faction Jor the tame company. STEAM POWEIl PLANT EQUIPMENT^ Complete Steam Generators Type C 3-Drum Boilers Type VL 2-Drum Boilers The "Economic" Boiler with or without Woter man 'Walls Welded H.R.T. Boilers Welded Steel Heating Boilers Coal Pulverizers # Underfeed Stokers and Welded Pressure Vessels for the Process Industries. Since 1840 m & u a- . I Erie City Iron Works erie, pa. ,g ilf POWER Dtcsmbar 1940