Facade plate, assembly and heat exchanger
OwnerDavid B. Pierceinventor
Life of this patent
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Abstract
The invention relates to a facade plate, assembly and heat exchanger, and relates in particular to a facade plate for securement to a tube plate of a heat exchanger, and to an assembled heat exchanger. In order to avoid, or reduce the frequency of, replacement of the tubes and tube plates of a heat exchanger, damaged as by erosion and corrosion, we disclose a facade plate for securement to at least a part of a heat exchanger tube plate, said facade plate having apertures conforming to the openings in the said part of the tube plate. We also disclose a facade assembly and fitted heat exchanger, and a method of fitting the facade plate.
Claims9
A heat exchanger (10) which includes a tube plate (14) with preformed openings (17) extending between a first tube plate face (18) and a second tube plate face (16), a tube (12,112) connected to each said opening of the tube plate and projecting from said second tube plate face but not from said first tube plate face, a facade plate (20,120) having apertures (26) corresponding in relative position to at least some of the tube plate openings, and holding means to secure the facade plate to the first tube plate face with said apertures aligned with said openings, said holding means including a tubular insert having a tubular section with a part secured internally of a tube, another part extending through an aligned facade plate aperture, and a flange covering an area of the facade plate surrounding a respective aperture, the facade plate being substantially non-compressible whereby to limit the insertion of the tube insert into the tube.
Dependencies are inferred from the claim text.