US 12,305,940 B2
Tube and tubesheet assembly with damage resistance and method for protecting tube and tubesheet assemblies from damage
Simon Yuen, Calgary (CA); Yasin Suzuk, Fort McMurray (CA); and Duane Go Serate, Calgary (CA)
Assigned to Suncor Energy Inc., Calgary (CA)
Filed by Suncor Energy Inc., Calgary (CA)
Filed on Sep. 8, 2020, as Appl. No. 16/948,204.
Prior Publication US 2022/0074684 A1, Mar. 10, 2022
Int. Cl. F28F 9/18 (2006.01); B23K 1/00 (2006.01); B23K 9/028 (2006.01); B23P 15/26 (2006.01); B23K 101/14 (2006.01)
CPC F28F 9/182 (2013.01) [B23K 1/0012 (2013.01); B23K 9/0288 (2013.01); B23P 15/26 (2013.01); B23K 2101/14 (2018.08); F28F 2245/00 (2013.01); F28F 2275/06 (2013.01)] 79 Claims
OG exemplary drawing
 
1. A tube and tubesheet assembly, comprising:
a tubesheet, the tubesheet comprising at least one tube insertion aperture therethrough;
at least one tube inserted in the at least one tube insertion aperture; and
an overlaid damage-resistant layer integrated into a surface of an edge of the at least one tube and along an inner surface of a portion of the tube that is positioned within the corresponding tube insertion aperture, wherein the inner diameter of the portion of the tube that includes the damage-resistant layer remains the same as the inner diameter of the portion of the tube without the damage-resistant layer, and wherein the outer diameter of the portion of the tube that includes the damage-resistant layer remains the same as the outer diameter of the portion of the tube without the damage-resistant layer.