公开(公告)号：US20250060172A1

公开(公告)日：2025-02-20

申请号：US18798041

申请日：2024-08-08

Applicant: Danfoss A/S

Inventor： Gregory TOURON ,  Zhifeng ZHANG

IPC: F28F3/08 ,  F28D9/00 ,  F28F3/10

Abstract: A plate heat exchanger including a plurality of heat transfer plates stacked in a first direction; first and second fluid channels formed between adjacent heat transfer plates and fluidly isolated from each other, and fluid barrier structure, which forms an isolation area in the first fluid channel so that the isolation area of the first fluid channel is fluidly isolated from the remaining areas of the first fluid channel. By adopting the fluid barrier structure, the performance of the plate heat exchanger is improved.

公开(公告)号：US20250052509A1

公开(公告)日：2025-02-13

申请号：US18795641

申请日：2024-08-06

Applicant: Danfoss A/S

Inventor： Zhifeng ZHANG ,  Kaike XU ,  Ming SHAO

IPC: F28D9/00 ,  F28F3/08

Abstract: The present disclosure provides a plate heat exchanger comprising: a plurality of heat transfer plates stacked in a first direction, wherein the heat transfer plate is configured to have a heat transfer plate edge on its side in a second direction perpendicular to the first direction; first and second fluid channels formed between adjacent heat transfer plates and fluidly isolated from each other; two first ports formed in the heat transfer plate on the side and an opposite other side of the heat transfer plate in the second direction, respectively, and fluidly communicated to the first fluid channel; and a hole formed in the heat transfer plate between one of the two first ports located on the side and the heat transfer plate edge in a second direction, which is fluidly communicated to the first fluid channel and fluidly isolated from the second fluid channel. By disposing the hole in a bottom area of the plate heat exchanger, excessive water remained in the plate heat exchanger when it is not in use is avoided, so as to prevent freezing in the plate heat exchanger.

公开(公告)号：US20250044034A1

公开(公告)日：2025-02-06

申请号：US18787007

申请日：2024-07-29

Applicant: Danfoss A/S

Inventor： Zhifeng ZHANG ,  Donghui FANG

IPC: F28D9/00 ,  F28F3/10

Abstract: A plate heat exchanger includes a plurality of heat transfer plates; a first fluid channel and a second fluid channel formed between adjacent heat transfer plates and fluidly isolated from each other; an upstream outlet port and a downstream inlet port formed in each of the heat transfer plates; and a fluid communication device. The first fluid channel includes a fluid channel upstream portion and a fluid channel downstream portion that are separated from each other. The upstream outlet port is communicated to the fluid channel upstream portion of the first fluid channel, while the downstream inlet port is communicated to the fluid channel downstream portion of the first fluid channel. The upstream outlet port and downstream inlet port are fluidly communicated with each other through the fluid communication device. By adopting the plate heat exchanger according to the present disclosure, a number of parts may be reduced.

公开(公告)号：US20220390182A1

公开(公告)日：2022-12-08

申请号：US17774880

申请日：2020-11-05

Applicant: DANFOSS A/S

Inventor： Zhifeng ZHANG ,  Zhixuan AN

IPC: F28D9/00 ,  F28F3/04

Abstract: A heat exchange plate for a plate heat exchanger, and a plate heat exchanger having the heat exchange plate. The heat exchange plate includes: a heat exchange plate body; and a ring-shaped flange projecting obliquely from an edge of the heat exchange plate body. The flange has a protrusion having a reinforcing action. The heat exchange plate and plate heat exchanger according to embodiments of the present invention can, for example, improve the quality of the heat exchange plate of the heat exchanger.

公开(公告)号：US20230062508A1

公开(公告)日：2023-03-02

申请号：US17793961

申请日：2020-11-13

Applicant: Danfoss A/S

Inventor： Zhifeng ZHANG ,  Zhixuan AN ,  Lingjie ZHANG

IPC: F28D9/00 ,  F28F3/08

Abstract: A plate heat exchanger includes heat exchange plates and a port, and the port communicates with a predetermined heat exchange space of a plurality of heat exchange spaces. The heat exchange plates of the plate heat exchanger includes a plurality of first heat exchange plates and a plurality of second heat exchange plates. The first heat exchange plate includes: a first heat exchange plate main body; a first opening formed in the first heat exchange plate main body for forming the port; and a first annular protrusion surrounding the first opening, adjoining the first opening and protruding from the first heat exchange plate main body toward a first side in a stacking direction. The second heat exchange plate includes: a second heat exchange plate main body; a second opening formed in the second heat exchange plate main body for forming the port; and a second annular protrusion surrounding the second opening, adjoining the second opening and protruding from the second heat exchange plate main body toward a second side opposite the first side in the stacking direction. The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.

公开(公告)号：US20250052508A1

公开(公告)日：2025-02-13

申请号：US18722866

申请日：2022-11-18

Applicant: Danfoss A/S

Inventor： Kai SHI ,  Zhixuan AN ,  Zhifeng ZHANG

IPC: F28D9/00

Abstract: A plate heat exchanger includes a plurality of heat transfer plates, the plurality of heat transfer plates including: a first heat transfer plate, including protrusions protruding upward, the protrusions having a top; and a second heat transfer plate stacked on the first heat transfer plate, the second heat transfer plate includes recesses recessed downward, the recesses having a bottom. The tops of the protrusions have a concave portion which is sunken downward, and at least part of the bottoms of the recesses of the second heat transfer plate is disposed in the concave portion of the tops of the protrusions of the first heat transfer plate. It is thus possible to improve the weld quality of the heat exchanger.

公开(公告)号：US20230147560A1

公开(公告)日：2023-05-11

申请号：US17773118

申请日：2020-10-28

Applicant: DANFOSS A/S

Inventor： Zhifeng ZHANG ,  Jun LUO

IPC: F28D9/00 ,  F28F3/04

CPC classification number: F28D9/005 ,  F28F3/042

Abstract: A heat exchange plate for use in a plate-type heat exchanger, and a plate-type heat exchanger having same. The heat exchange plate having a heat exchange portion and a port portion; fluids having different temperatures exchange heat with each other by means of the heat exchange portion; an opening used as the port of the heat exchanger is formed in the port portion. The heat exchange plate includes a first side and a second side in a direction perprendicular to the heat exchange plate; the port portion is provided with a contact porition that is in contact with the port portion of another heat exchange plate at the first side, and a protrusion protruding towards the second side relative to the contact portion. The heat exchange plate and the plate-type heat exchanger of the embodiments of the present invention can, for example, improve the quality of the port portion of the heat exchange plate of the heat exchanger.