Compressed air . ling oil barrels and emptying theminto the receiving tanks. The pressure usuallycarried on this system is 8o lb. gage. 4072 COMPRESSED AIR. COMPRESSED AIR PUMP WITHWATER-HEATED REHEATER.* BY L. C. BAYLES. A simple and economical improvement wasmade at the Gwen mine. Calaveras county, Cal-ifornia. It was necessary to lift 200 gal. ofwater per minute to a height of 600 ft. At firstthis water was raised with a direct-actingsinking pump. The compressed air was fur- its place, along with a Wainwright feed-waterheater. This feed-water heater was placed inthe suction pipe of the pump
Compressed air . ling oil barrels and emptying theminto the receiving tanks. The pressure usuallycarried on this system is 8o lb. gage. 4072 COMPRESSED AIR. COMPRESSED AIR PUMP WITHWATER-HEATED REHEATER.* BY L. C. BAYLES. A simple and economical improvement wasmade at the Gwen mine. Calaveras county, Cal-ifornia. It was necessary to lift 200 gal. ofwater per minute to a height of 600 ft. At firstthis water was raised with a direct-actingsinking pump. The compressed air was fur- its place, along with a Wainwright feed-waterheater. This feed-water heater was placed inthe suction pipe of the pump, so that all thewater passed through it before reaching thepump. The supply of compressed air w-as firstled into the high-pressure cylinder, where itdid a certain amount of work, and then passedinto the shell of the heater at about 35 Having been allowed to perform acertain amount of expansive work in the high-pressure cylinder, the temperature of the airentering the feed-water heater was reduced to. FEtU WATER HEATER USED AS AIR RE-HEATER. ow point—in fact, the temperature of this nished by a separate compressor which onlysupplied this pump and a hoist. It was foundthat when the pump was shut down the was obliged to make 20 to oper-ate the hotst and overcome pipe leakage. With the pump in operation the speed of thecompressor was 55 , establishing the factthat the pump consumed the air compressedhy 35 of the compressor. It was notconsidered advisable to install a rc-heater ofany of the standard types, but the engineer de-vised a simple mctliod of obtaining practicallyas good results without the costs involved infiring a re-heater. The sinking pump was discarded and a di-rect-acting compound pump was installed in ?From the Engineering and Mining Journal. air was below freezing point. As the airpassed through the feed-water heater, itstemperature was brought up to that of thewater, which was about 70 deg. The air thenentered the lo
Size: 1790px × 1396px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectcompres, bookyear1896
