STEAM SEPARATORS 



ENGINE No. 4. SHOWING COCHRANE VERTICAL STEAM SEPARATOR 



THK engines are located in a separate room, 

 some distance from the boilers, so that the 

 steam must pass through a considerable 

 length of piping before it reaches the engines. 



To protect the engines from water which might 

 be condensed from the steam in the pipes, and also 

 from water due to priming or foaming of the boilers, 

 or possibly to a too high water level, Cochrane Steam 

 Separators, manufactured by the Harrison Safety 

 ttoiler Works of Philadelphia, Pa., were placed in the 

 steam lines, close to the engines and pumps. A 

 Cochrane Separator consists essentially of a closed 

 vessel in which a ribbed baffle plate is placed 

 directly in front of the current of steam. In this 

 way, any particles of moisture are projected against 

 the baffle plate, whence they flow into a well or 

 receiver, drained by an automatic steam trap. The 

 steam passes around the sides of the baffle and enters 

 the engine in a dry condition. 



These separators not only protect engines by 

 keeping out large masses of water which might cause 

 disruption of cylinders but, by stopping small amounts 

 of moisture which are always found in steam and 

 which are increased by condensation in the steam 

 main, they prevent the washing away of cylinder 

 lubricating oil, thereby reducing the expense of oil 

 and minimizing friction and wear. 



There are six Cochrane Separators in the Singer 

 Building Power Plant, one of the horizontal type and 

 the remainder of the vertical receiver type. 



The receiver type is so called because it is sup- 

 plied with a very large well or receiver, which serves 

 not only to hold large volumes of water until they 

 can be drained out by the trap, but also equali/es 

 the flow of steam and maintains a more uniform 

 pressure at the engines. This volume of steam in the 

 receiver also acts as a cushion to absorb the pulsations 

 of the column of steam in the pipe line. 



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