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公开(公告)号：US11378224B2
公开(公告)日：2022-07-05
申请号：US16949288
申请日：2020-10-23
Applicant: Suncor Energy Inc.
Inventor： Simon Yuen , Millar Iverson , Brian Tkachyk , Edmond Hung , Haixia Guo
Abstract: Provided herein is a liner that can be loosely inserted in process pipe to form a lined pipe and to decrease the rate of heat transfer between process fluids flowing through the liner and the process pipe. The liner provided herein can reduce applied thermal loading on the outer pipe resulting from, for example, turbulent mixing between fluids having different temperatures (with or without stratification), circumferential thermal gradients, and/or longitudinal thermal gradients. An annulus between the process pipe and liner can be at least partially filled by process fluids, thereby creating a thermal buffer to further decrease the rate of heat transfer between the fluids and the process pipe.
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公开(公告)号：US20220074684A1
公开(公告)日：2022-03-10
申请号：US16948204
申请日：2020-09-08
Applicant: Suncor Energy Inc.
Inventor： Simon Yuen , Yasin Suzuk , Duane Go Serate
Abstract: A tube and tubesheet assembly is provided, which includes 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 a damage-resistant layer applied to 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. A heat exchanger including the assembly is also provided. A method is also provided for coupling a tube to a tubesheet. The method includes applying a damage-resistant layer to an edge of the tube and along an inner surface of a portion of the tube that is positioned within a tube insertion aperture in the tubesheet. The method can also be used to repair tubes and retrofit pre-existing tube-to-tubesheet joints.
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