US 12,140,387 B2
Plate heat exchanger
Tomas Dahlberg, Helsingborg (SE); and Sven Andersson, Hässleholm (SE)
Assigned to SWEP International AB, Landskrona (SE)
Appl. No. 17/789,289
Filed by SWEP International AB, Landskrona (SE)
PCT Filed Jan. 29, 2021, PCT No. PCT/SE2021/050069
§ 371(c)(1), (2) Date Jun. 27, 2022,
PCT Pub. No. WO2021/154154, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 2050097-1 (SE), filed on Jan. 30, 2020.
Prior Publication US 2023/0037668 A1, Feb. 9, 2023
Int. Cl. F28D 7/10 (2006.01); F28D 9/00 (2006.01); F28F 3/04 (2006.01); F28D 21/00 (2006.01)
CPC F28F 3/048 (2013.01) [F28D 9/005 (2013.01); F28D 9/0093 (2013.01); F28D 2021/0066 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A plate heat exchanger comprising a plurality of heat exchanger plates provided with a pressed pattern adapted to provide contact points keeping the heat exchanger plates on a distance from one another such that interplate flow channels are formed between said plates, said heat exchanger being provided with interplate flow channels for a first medium exchanging heat with a second medium in interplate flow channels and a third medium in interplate flow channels, wherein the interplate flow channels are in selective fluid communication with port openings for the first medium, the second medium and the third medium,
first and second integrated suction gas heat exchanger sections are provided in the vicinity of port openings for the second medium and third medium, and
every other heat exchanger plate is formed with a pressed first pattern of ridges and grooves, and the other heat exchanger plates are formed with a pressed second pattern of ridges and grooves, wherein the first pattern of ridges and grooves is different from the second pattern of ridges and grooves, so that a volume of interplate flow channels for the first medium is different from volumes of interplate flow channels for the second medium and the third medium, and wherein the heat exchanger plates are divided into subsections comprising a main section, a first integrated suction gas heat exchanger section and a second integrated suction gas heat exchanger section.