Gas and liquid contact apparatus – Fluid distribution – Valved
Reexamination Certificate
2008-05-09
2010-02-02
Chiesa, Richard L (Department: 1797)
Gas and liquid contact apparatus
Fluid distribution
Valved
C122S487000, C137S542000, C239S439000, C251S084000, C261S118000, C261SDIG013
Reexamination Certificate
active
07654509
ABSTRACT:
An improved valve element for a spray nozzle assembly of a steam desuperheating device that is configured to spray cooling water into a flow of superheated steam in a generally uniformly distributed spray pattern. The valve element includes a valve body and an elongate valve stem that is integrally attached to the valve body and extends axially therefrom. The valve body itself includes a nozzle cone which is integrally connected to the valve stem, and defines an outer surface. Integrally formed on a bottom surface of the nozzle cone is a hub having multiple ribs protruding therefrom. Integrally connected to each of the ribs is a generally circular fracture ring. The fracture ring is disposed in spaced relation to the lower edge of the nozzle cone which circumvents the bottom surface thereof. In this regard, a series of windows are formed in the valve body, with each window being framed by a segment of the lower edge of the nozzle cone, an adjacent pair of the ribs, and a segment of the top edge of the fracture ring.
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Written Opinion of PCT/GB2007/003480.
Freitas Stephen G.
Newton Raymond R.
Selzer Ory D.
Chiesa Richard L
Control Components Inc.
Stetina Brunda Garred & Brucker
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