Boiler feed water deaerator spray valve turbulence shield

Details Boiler feed water deaerator spray valve turbulence shield Boiler feed water deaerator spray valve turbulence shield

1982-09-30

1984-05-01

Cohan, Alan

Fluid handling

Systems

Plural tanks or compartments connected for serial flow

137574, 137575, 137576, 137590, 137543, 55 39, E03B 1100, B01D 1900

Patent

active

044455372

ABSTRACT:
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 vibrations 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-directing 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 to 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.

REFERENCES:
patent: 1776613 (1930-09-01), Baker
patent: 2405241 (1946-08-01), Smith
patent: 2671524 (1954-03-01), Gilwood
patent: 2677433 (1954-05-01), Kretzschmar
patent: 2689018 (1954-09-01), Kittredge
patent: 2714896 (1955-08-01), Knautz
patent: 3112191 (1963-11-01), Anderson
patent: 3432139 (1969-03-01), Jentoft
patent: 3487611 (1970-01-01), Bekedam

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