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1. 发明公开

EP4012070A1 HEAT EXCHANGER 审中-实审
公开(公告)号：EP4012070A1
公开(公告)日：2022-06-15
申请号：EP21210385.7
申请日：2021-11-25
申请人： Danfoss A/S
发明人： Nielsen, Helge
IPC分类号： C25B1/04 , C25B9/00 , C25B15/00 , F28F3/00
摘要： The present invention relates to a heat exchanger (10) adapted to be connected to an electrolyzing device (2) such that fluids circuited in the electrolyzing device (2) also circuits in the heat exchanger (10).
The heat exchanger is adapted for a heat exchanging fluid simultaneously to cool two fluids.
The present invention further relates to an electrolyzer (1) equipped with a heat exchanger (1).

2. 发明公开

EP3819584A1 HEAT EXCHANGER PLATE 有权
公开(公告)号：EP3819584A1
公开(公告)日：2021-05-12
申请号：EP20206124.8
申请日：2020-11-06
申请人： Danfoss A/S
发明人： Nielsen, Helge , Knudsen, Ivan
IPC分类号： F28F9/007 , F28F21/06
摘要： A heat exchanger plate (3) is described comprising a heat exchange area in a heat transfer plate (11) and a support bar guiding area at an edge(14) of the heat transfer plate (11), a recess (13) in the edge (14), and an insert (12) mounted in the recess (13).
It should be possible to use the same heat transfer plate independent of a support bar or support bars used during assembling of the heat exchanger plates (3).
To this end, the largest width of the recess (13) in a direction parallel to the edge (14) is located at the edge (14) and a support bar guiding section (15) is provided in the insert (12).

3. 发明公开

EP3819583A1 HEAT EXCHANGER PLATE 有权
公开(公告)号：EP3819583A1
公开(公告)日：2021-05-12
申请号：EP20192690.4
申请日：2020-08-25
申请人： Danfoss A/S
发明人： Knudsen, Ivan , Nielsen, Helge
IPC分类号： F28F3/10
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.

4. 发明公开

EP4102170A1 DOUBLE PLATE HEAT EXCHANGER 审中-实审
公开(公告)号：EP4102170A1
公开(公告)日：2022-12-14
申请号：EP22178064.6
申请日：2022-06-09
申请人： Danfoss A/S
发明人： Nielsen, Helge , Debevc, Martin
IPC分类号： F28F3/00 , F28D9/00
摘要： The present invention relates to a plate heat exchanger (1) comprising a stack of plate elements (2) each plate element (2) being of a double wall construction comprising a first heat transfer plate (10) and a second heat transfer plate (20) each comprising 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).

5. 发明公开

EP4050294A1 HEAT EXCHANGER PLATE 审中-实审
公开(公告)号：EP4050294A1
公开(公告)日：2022-08-31
申请号：EP22169658.6
申请日：2020-11-06
申请人： Danfoss A/S
发明人： Nielsen, Helge , Knudsen, Ivan
IPC分类号： F28F9/007 , F28F21/06
摘要： A heat exchanger plate (3) is described comprising a heat exchange area in a heat transfer plate (11) and a support bar guiding area at an edge(14) of the heat transfer plate (11), a recess (13) in the edge (14), and an insert (12) mounted in the recess (13).
It should be possible to use the same heat transfer plate independent of a support bar or support bars used during assembling of the heat exchanger plates (3).
To this end, the largest width of the recess (13) in a direction parallel to the edge (14) is located at the edge (14) and a support bar guiding section (15) is provided in the insert (12).

6. 发明公开

EP3816567A1 PLATE-TYPE HEAT EXCHANGER 有权
公开(公告)号：EP3816567A1
公开(公告)日：2021-05-05
申请号：EP20192692.0
申请日：2020-08-25
申请人： Danfoss A/S
发明人： Petersen, Jes , Knudsen, Ivan , Nielsen, Helge
IPC分类号： F28F3/10 , F28D9/00
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).

7. 发明公开

EP3819582A1 PLATE-AND-SHELL HEAT EXCHANGER AND A HEAT TRANSFER PLATE FOR A PLATE-AND-SHELL HEAT EXCHANGER 有权
公开(公告)号：EP3819582A1
公开(公告)日：2021-05-12
申请号：EP20191662.4
申请日：2020-08-19
申请人： Danfoss A/S
发明人： Nielsen, Helge
IPC分类号： F28D9/00
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.

8. 发明公开

EP3293459A1 FLUID SUPPLY SYSTEM 有权
标题翻译：流体供应系统
公开(公告)号：EP3293459A1
公开(公告)日：2018-03-14
申请号：EP17189570.9
申请日：2017-09-06
申请人： Danfoss A/S
发明人： Nielsen, Helge
IPC分类号： F24D10/00 , F24D17/00 , F24D19/10
摘要： The invention relates to a fluid supply system comprising a district hot fluid supply line (2), a district fluid return line (3), a district cold fluid supply line (4), at least one local hot fluid line (9, 10), at least one heat exchanger (5, 6) and a hot fluid pump (21). The at least one heat exchanger (5, 6) comprises a primary side (11) that is connected at a primary inlet (13) to the district hot fluid supply line (2) and at a primary outlet to the district fluid return line (3). The at least one heat exchanger (5, 6) comprises a secondary side (12) that is connected at a secondary inlet (16) to the district cold fluid supply line (4) and at a secondary outlet (17) to the local hot fluid line (9, 10). The at least one local hot fluid line (9, 10) is connected to at least one local fluid tapping unit (7, 8) to supply heated fluid from the secondary outlet (17) of the connected heat exchanger (5, 6). The hot fluid pump (21) is activated if a need for hot fluid is detected.
Task of the invention is to provide a simplified and less expensive fluid supply system for multiple consumers.
The above task is solved in that each heat exchanger (5, 6) is connected at its respective primary inlet (13) to the district hot fluid supply line (2), at its respective primary outlet (14) to the district fluid return line (3), at its respective secondary inlet (16) to the district cold fluid supply line (4) and at its respective secondary outlet (17) each to a different local hot fluid line (9, 10), wherein the hot fluid pump (21) is arranged in the district hot fluid supply line (2) providing hot fluid to all connected heat exchanger (5, 6) and wherein the hot fluid pump (21) is activated if fluid is tapped at anyone of the local fluid tapping units (7, 8).
摘要翻译：流体供应系统技术领域本发明涉及一种流体供应系统，其包括区域热流体供应管线（2），区域流体回流管线（3），区域冷流体供应管线（4），至少一个局部热流体管线（9,10），至少一个热交换器（5,6）和热流体泵（21）。所述至少一个热交换器（5,6）包括初级侧（11），所述初级侧（11）在初级入口（13）处连接至区域热流体供应管线（2）并且连接至区域流体回流管线（2）的初级出口 3）。所述至少一个热交换器（5,6）包括次级侧（12），次级侧（12）在次级入口（16）处连接至区域冷流体供应管线（4）并且在次级出口（17）处连接至局部热流体管线（9,10）。该至少一个局部热流体管线（9,10）连接到至少一个局部流体分接单元（7,8），以从连接的热交换器（5,6）的二次出口（17）供应加热的流体。如果检测到需要热流体，则热流体泵（21）被启动。本发明的任务是为多个消费者提供简化且较便宜的流体供应系统。上述任务通过以下方式解决：每个热交换器（5,6）在其各自的主入口（13）处连接到区域热流体供应管线（2），在其相应的主要出口（14）处连接到区域流体返回管线（3）在各自的次级入口（16）处连接到区域冷流体供应管线（4）和在其各自的次级出口（17）处连接到不同的局部热流体管线（9,10），其中热流体泵（21）布置在向所有连接的热交换器（5,6）提供热流体的区域热流体供应管线（2）中，并且其中如果流体在任何局部流体分接单位（7,8）。

9. 发明公开

EP3816557A1 HEAT EXCHANGER PLATE 有权
公开(公告)号：EP3816557A1
公开(公告)日：2021-05-05
申请号：EP20192693.8
申请日：2020-08-25
申请人： Danfoss A/S
发明人： Nielsen, Helge , Julius, Kent , Holm, Ulrik , Knudsen, Ivan , Petersen, Jes
IPC分类号： F28D9/00 , F28F3/10
摘要： A heat exchanger plate (2) is described comprising an edge (7), a groove (8) running along the edge (7), a gasket arranged in the groove (8), and a corrugated area (10) having tops (12) and valleys (11) between the groove (8) and the edge (7), wherein tops (12) run substantially perpendicular to the edge (7).
In such a heat exchanger plate the gasket should be reliably fixed without affecting the stability of the heat exchanger.
To this end, in at least one valley (11) a raised section (14) extends from a bottom area (13) of the valley (11) and the gasket comprises a click-on extension arranged in the valley (11) and having a recess adapted to the raised section (14).

10. 发明授权

EP3293459B1 FLUID SUPPLY SYSTEM 有权
公开(公告)号：EP3293459B1
公开(公告)日：2020-05-06
申请号：EP17189570.9
申请日：2017-09-06
申请人： Danfoss A/S
发明人： Nielsen, Helge
IPC分类号： F24D10/00 , F24D17/00 , F24D19/10

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