US 12,146,656 B2
Heat exchanger with pipe bundle
Peter Thomsen, Aalborg (DK); Ivan Bo Christensen, Hobro (DK); Jens Taggart Pelle, Vadum (DK); Keld Sørensen, Skørping (DK); and Svante Bundgaard, Aalborg (DK)
Assigned to Alfa Laval Aalborg Header-coil Company A/S, Aalborg (DK)
Appl. No. 17/618,990
Filed by Alfa Laval Aalborg Header-coil Company A/S, Aalborg (DK)
PCT Filed Jun. 15, 2020, PCT No. PCT/DK2020/050170
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2020/253924, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. PA201970376 (DK), filed on Jun. 17, 2019.
Prior Publication US 2022/0325884 A1, Oct. 13, 2022
Int. Cl. F22B 1/00 (2006.01); B01D 45/08 (2006.01); B01D 45/16 (2006.01); F22B 15/00 (2006.01); F28D 7/00 (2006.01); F28D 7/08 (2006.01); F28D 7/16 (2006.01); F28D 21/00 (2006.01)
CPC F22B 1/006 (2013.01) [B01D 45/08 (2013.01); B01D 45/16 (2013.01); F22B 15/00 (2013.01); F28D 7/0083 (2013.01); F28D 7/082 (2013.01); F28D 7/085 (2013.01); F28D 7/087 (2013.01); F28D 7/16 (2013.01); F28D 7/1607 (2013.01); F28D 2021/0064 (2013.01); F28F 2210/10 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A heat exchanger for providing heat exchange between fluids, wherein said heat exchanger comprises:
a container configured to house a first fluid;
a first pipe connector and a second pipe connector, each of the first pipe connector and the second pipe connector comprising:
a cavity; and
a plurality of pipe connection points; and
a pipe bundle arranged inside the container and extending between the first pipe connector and the second pipe connector, wherein pipes of the pipe bundle are configured to guide a second fluid, wherein the pipe bundle in the container is connected to the first pipe connector at the pipe connection points of the first pipe connector and the second pipe connector at the pipe connection points of the second pipe connector points so that insides of the pipes of the pipe bundle are in fluid communication with the cavity of the first pipe connector and the cavity of the second pipe connector and thereby provides flow paths configured to guide the second fluid between the first pipe connector and the second pipe connector;
wherein the heat exchanger is configured to provide a heat transfer between the first fluid and the second fluid through pipe walls of the pipes of the pipe bundle;
wherein the pipes of the pipe bundle are distributed in layers of the pipes;
wherein a plurality of pipes of each of the layers of pipes each comprises a first bend and a second bend, where each of said first bend and said second bend is provided between a first flow path section, a second flow path section and a third flow path section of the respective pipe which extend in a longitudinal direction of the container, so that the respective pipe provides three substantially parallel flow path sections;
wherein the first flow path section has a length that is at least 1.7 times greater than a length of the second flow path section and the third flow path section;
wherein the first bend is provided between the first flow path section and the second flow path section, and wherein the second bend is provided between the second flow path section and the third flow path section;
wherein each of the layers of pipes comprises a first pipe subgroup and a second pipe subgroup, wherein the first flow path section of the first pipe subgroup is connected to one of the first pipe connector and the second pipe connector, and wherein the first flow path section of the second pipe subgroup is connected to the other one of the first pipe connector and the second pipe connector;
wherein the second bend between the second flow path section and the third flow path section of the respective pipes in one of the first pipe subgroup and the second pipe subgroup in one of the pipe layers is arranged opposite to the second bend extending between the second flow path section and the third flow path section of the respective pipes in the other one of the first pipe subgroup and the second pipe subgroup of one of the pipe layers.