Liquid heaters and vaporizers – Cleaning – Fluid jet
Patent
1986-06-13
1987-10-20
Favors, Edward G.
Liquid heaters and vaporizers
Cleaning
Fluid jet
122382, 239556, 239557, F22B 3752
Patent
active
047006625
ABSTRACT:
A sludge lance wand for cleaning once through steam generator tubes. A curved high pressure fluid feed tube has a plurality of feed tube extensions attached at one end and a first nozzle brace attached at the other end and in fluid communication with the feed tube. A second nozzle brace bolted to the first nozzle brace retains nozzle blocks in position between the two braces. The nozzle blocks are in fluid communication with the first nozzle brace and are provided with nozzle openings angled for cleaning the triangular-pitch positioned tubes in a once through steam generator. O-ring seals on each end of the nozzle blocks press fit against the braces to prevent leakage and insure that full fluid flow is directed through the nozzle openings.
REFERENCES:
patent: 909711 (1909-02-01), Thompson
patent: 975328 (1910-11-01), Clark
patent: 4424769 (1984-01-01), Charamathieu et al.
patent: 4526135 (1985-07-01), Calhoun et al.
Fasnacht, Jr. Floyd A.
Klahn Frank C.
Schafer Bruce W.
Werner Charles E.
Edwards Robert J.
Favors Edward G.
LaHaye D. Neil
The Babcock & Wilcox Company
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