The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 1987
Filed:
Dec. 27, 1985
Stein Industrie, Velizy-Villacoublay, FR;
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).