Transcription of Why? Survivinga Steam Rupture
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Why? Survivinga Steam Rupture
By WAYNE KIRSNER, PE,Kirsner Consulting Engineering, Inc.,Atlanta, you hear waterhammer bangingor popping noises, look for an is nota normal oracceptable part of Steam systemoperation. Steam should be isolatedfrom the hammering pipe section andthe section drained of condensate.(See Condensation-Induced Water-hammer, January 1999, HPAC Engi-neering.) But, if you must be in a utili-dor or manhole, observe the steamdistribution piping around you. Visual-ize your path of escape. Be wary of castiron valves and traps, corroded con-densate lines, flexible expansion joints,and gasketed blind flanges (the gasketscan blow out from between theflanges). Try to stay between the exitand these elements if you anticipatethe possibility of waterhammer. Alwaysanticipate waterhammer during startupof cold Steam WATERHAMMER STRIKESIf waterhammer strikes and rupturesa high-pressure Steam or condensateline entrapping you:1.
SPECIFIC INSTRUCTIONS TO THOSE ISOLATING THE MAIN: • Open manhole covers at adjacent manholes to allow cool air to be drawn into utilidors. If your co-worker is trapped,
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