公开(公告)号：US11982496B2

公开(公告)日：2024-05-14

申请号：US17752929

申请日：2022-05-25

Applicant: Danfoss A/S

Inventor： Helge Nielsen

IPC: F28D9/00 ,  F28F3/10 ,  F28D21/00

CPC classification number: F28D9/005 ,  F28F3/10 ,  F28D2021/0071 ,  F28F2230/00 ,  F28F2275/14

Abstract: A plate kind heat exchanger (1) has a plurality of stacked plates (2) forming flow paths for heat exchanging fluids there between, a first inlet channel being fluidly connected to inlets of a first set of flow paths, a second inlet channel being fluidly connected to inlets of a second set of flow paths, a first outlet channel being fluidly connected to outlets of the first set of flow paths, and a second outlet channel being fluidly connected to outlets of the second set of flow paths. The first inlet channel is provided with a stack (15) of rings (5) forming fluid passages towards the inlets of the first set of flow paths. Each ring (5) has a first rigid shell member (6) and a second rigid shell member (7), the first rigid shell member (6) and/or the second rigid shell member (7) defining a groove (9) providing fluid passage from the first inlet channel to one of the flow paths of the first set of flow paths, and a sealing member (8) formed from a compressible material, the sealing member (8) being positioned between the first rigid shell member (6) and the second rigid shell member (7). The stack of rings (15) is subjected to a force which presses the rings (5) towards each other and compresses the sealing members (8) of the rings (5), thereby providing sealing towards the flow paths of the second set of flow paths.

公开(公告)号：US12123660B2

公开(公告)日：2024-10-22

申请号：US17084864

申请日：2020-10-30

Applicant: Danfoss A/S

Inventor： Jes Petersen ,  Ivan Knudsen ,  Helge Nielsen

IPC: F28D9/00 ,  F28F3/08 ,  F28F3/10 ,  F28F9/007 ,  F28F21/06

CPC classification number: F28D9/005 ,  F28F3/086 ,  F28F3/10 ,  F28F9/0075 ,  F28F21/065

Abstract: A plate-type heat exchanger is described comprising a stack of heat exchanger plates (2b) forming a first flow path and a second flow path, wherein each heat exchanger plate (2b) comprises an opening (7b) in an opening area (8b), the opening area (8b) being connected to one of the two flow paths and sealed against the other of the two flow paths by means of a gasket arrangement (11b). Such a plate-type heat exchanger should be suitable for high pressures without increasing the risk of leakages. To this end a support element (15) is arranged in the sealed opening area (8b).

公开(公告)号：US20220357109A1

公开(公告)日：2022-11-10

申请号：US17738547

申请日：2022-05-06

Applicant: Danfoss A/S

Inventor： Helge Nielsen

IPC: F28D9/00

Abstract: A plate (2) for a plate kind heat exchanger (1) is disclosed. The plate (2) is provided with a plurality of corrugations (8), a cross-section of the plate (2) thereby defining a plurality of hills (9) and valleys (10) which define flow paths along surfaces of the plate (2). The hills (9) and/or the valleys (10) have a shape which is asymmetrical with respect to a center line (11, 12) intersecting a top point of the hill (9) and/or valley (10). A plate kind heat exchanger (1) having a plurality of such plates (2) arranged in a stacked configuration, where the hills (9) and valleys (10) formed in the plates (2) define flow paths between the plates (2) is also disclosed.

公开(公告)号：US20220065557A1

公开(公告)日：2022-03-03

申请号：US17459193

申请日：2021-08-27

Applicant: Danfoss A/S

Inventor： Helge Nielsen ,  Henrik Agerley Thomsen

IPC: F28F3/08 ,  F28D9/00

Abstract: The present invention introduces a heat exchanger including a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device including an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening. This prevents the bold from falling out of the recesses.

公开(公告)号：US20210140716A1

公开(公告)日：2021-05-13

申请号：US17090475

申请日：2020-11-05

Applicant: Danfoss A/S

Inventor： Helge Nielsen

IPC: F28D9/00 ,  F28F3/08

Abstract: The present invention relates to a plate-and-shell heat exchanger and a heat transfer plate for a plate-and-shell heat exchanger. The heat exchanger comprises a shell and a plurality of heat transfer plates within the shell. The plates form fluidly connected first cavities for providing a first fluid flow path for a first fluid flow. The shell forms a second cavity in which the plates are arranged, and a second fluid flow path is provided for a second fluid flow, separated from the first fluid flow path by the plates. The heat exchanger comprises heat transfer plates which are formed for improving the distribution of the second fluid flow within the heat exchanger.

公开(公告)号：US12209820B2

公开(公告)日：2025-01-28

申请号：US17459193

申请日：2021-08-27

Applicant: Danfoss A/S

Inventor： Helge Nielsen ,  Henrik Agerley Thomsen

IPC: F28F3/08 ,  F28D9/00 ,  F16B7/18

Abstract: The present invention introduces a heat exchanger including a stack of heat transfer plates positioned between two end plates in which recesses formed in edge regions are adapted to accommodate bolts reaching from a first to a second of said two end plates, said at least one of said recesses formed with locking features adapted to engage with a locking device including an opening, where the locking device is to be positioned on the respective end plate with the opening aligned with the recess in such a manner that a bolt positioned in the recess also can project through said opening. This prevents the bold from falling out of the recesses.

公开(公告)号：US20230194178A1

公开(公告)日：2023-06-22

申请号：US18065138

申请日：2022-12-13

Applicant: Danfoss A/S

Inventor： Helge Nielsen

IPC: F28D1/03 ,  F28F27/02 ,  F28F9/02

CPC classification number: F28D1/0316 ,  F28F27/02 ,  F28F9/0209 ,  F28F2250/00

Abstract: A separating element (10a, 10b) adapted to be positioned in connection to a heat exchanger unit (1, 1a, 1b, 1c) of a sectioned heat exchanger (100) is disclosed. The separating element (10a, 10b) has first openings (11a, 11b) adapted to align with first heat exchanger openings (3a, 3b) forming inlets of a first flow path (A) and a second flow path (B), respectively, through the heat exchanger unit (1, 1a, 1b, 1c). The separating element (10a, 10b) further includes second openings (11c, 11d) adapted to align with second heat exchanger openings (3c, 3d) forming outlets of the first flow path (A) and the second flow path (B), respectively. The first openings (11a, 11b) are formed with first valves (12a, 12b) adapted to close for fluid flow to the first (A) and/or the second (B) flow path through the heat exchanger unit (1, 1a, 1b, 1c), and the second openings (11c, 11d) are formed with second valves (17a, 17b) adapted to close for fluid flow from the first (A) and/or second (B) flow path. The first valves (12a, 12b) are formed with valve stems (13a, 13b), each operated by an actuator (14a, 14b), and the second valves (17a, 17b) are connected to the same valve stems (13a, 13b) as the first valves (12a, 12b), thereby providing coordinated control of the first valves (12a, 12b) and the second valves (17a, 17b).

公开(公告)号：US20210140722A1

公开(公告)日：2021-05-13

申请号：US17090444

申请日：2020-11-05

Applicant: Danfoss A/S

Inventor： Ivan Knudsen ,  Helge Nielsen

IPC: F28F3/02

Abstract: A heat exchanger plate (1) is described comprising an edge (2), a groove (3) running along the edge (2), and a corrugated area (4) having tops (5) and valleys (6) between the groove (3) and the edge (2), wherein the tops (5) run substantially perpendicular to the edge (2) and the groove (3) comprises an external wall (7) adjacent to the corrugated area (4) and an internal wall (8). Using such a heat exchanger plate (1) it should be possible to produce a reliable plate-type heat exchanger of simple construction. To this end the external wall (7) is in form of a wavy shape.

公开(公告)号：US20210131737A1

公开(公告)日：2021-05-06

申请号：US17084864

申请日：2020-10-30

Applicant: Danfoss A/S

Inventor： Jes Petersen ,  Ivan Knudsen ,  Helge Nielsen

IPC: F28D9/00 ,  F28F21/06 ,  F28F9/007 ,  F28F3/08 ,  F28F3/10

Abstract: A plate-type heat exchanger is described comprising a stack of heat exchanger plates (2b) forming a first flow path and a second flow path, wherein each heat exchanger plate (2b) comprises an opening (7b) in an opening area (8b), the opening area (8b) being connected to one of the two flow paths and sealed against the other of the two flow paths by means of a gasket arrangement (11b). Such a plate-type heat exchanger should be suitable for high pressures without increasing the risk of leakages. To this end a support element (15) is arranged in the sealed opening area (8b).

公开(公告)号：US12031778B2

公开(公告)日：2024-07-09

申请号：US17090475

申请日：2020-11-05

Applicant: Danfoss A/S

Inventor： Helge Nielsen

IPC: F28D9/00 ,  F28F3/08

CPC classification number: F28D9/0006 ,  F28D9/0043 ,  F28F3/08

Abstract: The present invention relates to a plate-and-shell heat exchanger and a heat transfer plate for a plate-and-shell heat exchanger. The heat exchanger comprises a shell and a plurality of heat transfer plates within the shell. The plates form fluidly connected first cavities for providing a first fluid flow path for a first fluid flow. The shell forms a second cavity in which the plates are arranged, and a second fluid flow path is provided for a second fluid flow, separated from the first fluid flow path by the plates. The heat exchanger comprises heat transfer plates which are formed for improving the distribution of the second fluid flow within the heat exchanger.