F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/2
F22B 37/00 (2006.01) E03B 11/00 (2006.01)
Patent
CA 1205704
BOILER FEED WATER DEAERATOR SPRAY VALVE TURBULENCE SHIELD Abstract of the Disclosure An improved boiler feed water deaerator is provided which includes a plurality of spray valve assemblies therein which are shielded to effectively eliminate undesirable valve chattering and vibra- tions resulting from the horizontal component of incoming feed water and turbulent water flow through the valves. The valves hereof include an elongated, tubular, open ended water flow-direct- ing shield with a shiftable valve plug adjacent the outlet end thereof. The plug is secured to an elongated stem disposed axially within the shield, and support structure is provided for the stem adjacent the upper inlet of the shield for permitting reciprocation and limited pivoting movement of the stem and plug. The ratio of the internal diameter to the length of the shield is desirably less than about 2 (most preferably about 1) in order of assure that water entering the inlet end of the body is directed substantially axially prior to discharge; this has been found to measurably reduce turbulence in the water and hence minimize potentially destructive valve vibration.
425581
Athey Roderick E.
Furnish Alan G.
Gowling Lafleur Henderson Llp
Marley Company (the)
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