公开(公告)号：US20210140722A1

公开(公告)日：2021-05-13

申请号：US17090444

申请日：2020-11-05

申请人： Danfoss A/S

发明人： Ivan Knudsen ,  Helge Nielsen

IPC分类号： F28F3/02

摘要： 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

申请人： Danfoss A/S

发明人： Jes Petersen ,  Ivan Knudsen ,  Helge Nielsen

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

摘要： 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

申请人： Danfoss A/S

发明人： Helge Nielsen

IPC分类号： F28D9/00

摘要： 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

申请人： Danfoss A/S

发明人： Helge Nielsen ,  Henrik Agerley Thomsen

IPC分类号： F28F3/08 ,  F28D9/00

摘要： 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

申请人： Danfoss A/S

发明人： Helge Nielsen

IPC分类号： F28D9/00 ,  F28F3/08

摘要： 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：US20220397349A1

公开(公告)日：2022-12-15

申请号：US17831679

申请日：2022-06-03

申请人： Danfoss A/S

发明人： Helge Nielsen ,  Martin Debevc

IPC分类号： F28D9/00 ,  F28F3/08

摘要： A plate heat exchanger (1) includes a stack of plate elements (2), each plate element (2) being of a double wall construction having a first heat transfer plate (10) and a second heat transfer plate (20), each having a central heat exchanging portion (40) provided with surface patterns (45) adapted for a surface pattern (45) of first heat transfer plate (10) of one plate element (2) to contact a surface pattern (45) of a second heat transfer plate (20) of a neighbouring plate element (2) forming a first flow path (A) for a first fluid at the one side and second flow path for a second fluid (B) at the second side of a plate element (2), where the plate elements (2) are formed with openings (3a, 3b, 3c, 3d) in opening areas (30a, 30b, 30c, 30d), wherein a first heat transfer plate (10) in an opening area (30a, 30b, 30c, 30d) is formed with a closed projection (50) projecting in a first direction, and in the same opening area (30a, 30b, 30c, 30d) is formed with an open projection (65) formed on a second direction being opposite to the first direction, such that the closed (50) and open (65) projections together defines a first leak cavity (70).

公开(公告)号：US11333439B2

公开(公告)日：2022-05-17

申请号：US17078228

申请日：2020-10-23

申请人： Danfoss A/S

发明人： Helge Nielsen ,  Jes Petersen

IPC分类号： F28D7/04

摘要： A spiral heat exchanger is formed of at least two sheets extending along a spiral-shaped path around a common centre body and separated to form at least a first and a second spiral-shaped substantially parallel flow channels extending and enabling flow communication between a radially outer orifice and a radially inner orifice. The centre body includes a wall body with a first conduit at the inner surface of the wall body being in fluid connection to the first flow channel, and a second conduit formed at the outer surface of the wall body and being in fluid connection to the second flow channel.

公开(公告)号：US20210123682A1

公开(公告)日：2021-04-29

申请号：US17078228

申请日：2020-10-23

申请人： Danfoss A/S

发明人： Helge Nielsen ,  Jes Petersen

IPC分类号： F28D7/04

摘要： The present invention relate to a spiral heat exchanger formed of at least two sheets extending along a spiral-shaped path around a common centre body and separated to form at least a first and a second spiral-shaped substantially parallel flow channels extending and enabling flow communication between a radially outer orifice and a radially inner orifice, characterized in that the centre body comprises a wall body with an first conduit at the inner surface of the wall body being in fluid connection to the first flow channel, and an second conduit formed at the outer surface of the wall body and being in fluid connection to the second flow channel.

公开(公告)号：US20220381518A1

公开(公告)日：2022-12-01

申请号：US17752929

申请日：2022-05-25

申请人： Danfoss A/S

发明人： Helge Nielsen

IPC分类号： F28D9/00 ,  F28F3/10

摘要： 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：US11473853B2

公开(公告)日：2022-10-18

申请号：US17090444

申请日：2020-11-05

申请人： Danfoss A/S

发明人： Ivan Knudsen ,  Helge Nielsen

IPC分类号： F28F3/00 ,  F28F3/02 ,  F28D9/00

摘要： 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.