Heat exchange – With protector or protective agent
Patent
1985-12-27
1987-05-26
Davis, Jr., Albert W.
Heat exchange
With protector or protective agent
165159, F28F 900
Patent
active
046677330
ABSTRACT:
The present invention relates to a device for protecting heat exchangers placed in a duct (1) for smoke filled with fine particles of ash, e.g. coming from a pulverized coal boiler. The heat exchangers are constituted by parallel grids (10) each comprising a main region (A) fitted with rectilinear lengths (11) of tube extending perpendicularly to the direction of smoke movement, and two end regions (B) fitted with bends (12) and rectilinear lengths (13) of tube extending parallel to the direction of smoke movement. The protective device is constituted by parallel panels (20) which are parallel to the grids (10) of tubes, with each panel (20) being placed between two grids (10) and at each end region (B).
REFERENCES:
patent: 2110024 (1938-03-01), Miller
patent: 2303247 (1942-11-01), Woods
patent: 2496540 (1950-02-01), Holmes et al.
patent: 2559069 (1951-07-01), England
patent: 2847192 (1958-08-01), Smith et al.
patent: 3568763 (1971-03-01), Stoker
patent: 4007908 (1977-02-01), Smagghe et al.
patent: 4586564 (1986-05-01), Hagemeister
Patents Abstract of Japan, vol. 7, No. 89, (M-297)[1234], Apr. 13, 1983; & JP-A-58 13 987 (Sasakura Kikai Seisakusho K.K.) 26-01-1983.
Bessouat Roger
Mevel Jean-Claude
Vandycke Michel
Davis Jr. Albert W.
Smith Randolph A.
Stein Industrie
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