EP3822572A1 - Échangeur de chaleur à passages multiples - Google Patents

Échangeur de chaleur à passages multiples Download PDF

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Publication number
EP3822572A1
EP3822572A1 EP20204551.4A EP20204551A EP3822572A1 EP 3822572 A1 EP3822572 A1 EP 3822572A1 EP 20204551 A EP20204551 A EP 20204551A EP 3822572 A1 EP3822572 A1 EP 3822572A1
Authority
EP
European Patent Office
Prior art keywords
baffle
heat exchanger
plate
shell
plate heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20204551.4A
Other languages
German (de)
English (en)
Other versions
EP3822572B1 (fr
Inventor
Jes Petersen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss AS filed Critical Danfoss AS
Priority to PL20204551T priority Critical patent/PL3822572T3/pl
Publication of EP3822572A1 publication Critical patent/EP3822572A1/fr
Application granted granted Critical
Publication of EP3822572B1 publication Critical patent/EP3822572B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0012—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the apparatus having an annular form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Definitions

  • the present invention relates to a plate heat exchanger and a method for constructing multiple passes in the plate heat exchanger.
  • Such plate and shell type often are constructed by of a stack of patterned heat transfer plates positioned inside a shell.
  • the heat transfer plates may have been welded or brazed tightly together at the circumference of openings formed therein and at their perimeters. This together with the patterns formed in the heat transfer plates defines a first flow path between connections of the shell surrounding the plate pack and a second flow path between the openings in the plates. This enables a heat exchange medium to flow in the first flow path formed at the one side of the heat transfer plates in fluid connection to the plate perimeter, and in second side of the heat transfer plates in fluid connection to the openings.
  • the performance of the heat exchanger can be improved by forming a multi-pass heat exchanger where the heat exchange mediums pass each other several times. This can be implemented by including baffles, or stoppers, diverging the medium back and forth across the plate pack a plural of times.
  • baffles are welded into the heat exchanger, this disables later changes of the heat exchanger configuration, such as if the requirements change, or simply to adjust to optimize the heat exchanger.
  • the shells often not are fully circular, but may be slightly oval, it is essential forming an adjustable baffle able to be tightly fitted against an uneven or un-circular shell wall. For example, if the shell is oval, it would be an advantage if the baffle can be adjusted to fit at any position within the shell.
  • a plate heat exchanger which comprises - a plate stack of patterned heat transfer plates arranged on top of each other and positioned within a shell and defining a first flow path and a second flow path between the plates, where outer distribution chambers are formed in the space between the other edges of the heat transfer plates and the inside wall of the shell being in fluid communication to the first flow path and first port connections, where a baffle is positioned adjustable in an outer distribution chamber separating it into two outer sub-chambers forming a flow barrier.
  • the term 'adjustable' refers to the baffle being positioned in a manner where it is not fixed unremovable in the position, but fixed in a detachable, or removable, manner, thus allowing it to be removed and possible positioned differently. This makes a more flexible heat exchanger, where one or more baffles may be inserted or removed at any time, either during production or on site.
  • the term 'adjustable' refers to the baffle being flexible in such a manner that by pushing it against the inner surface of the external distribution chamber, then it adapts the curvature of said inner surface.
  • the baffle is adjustable in the manner it can be connected to any of a plural of either said heat transfer plates, or additionally or alternatively, to sealing plate(s) positioned between any of the heat transfer plates.
  • the term 'plate' refers in common to either a heat transfer plate or sealing plate.
  • the baffle may be connected to said plate by detachable fastening means, being a separate device being inserted. Alternatively, it is integrated in the baffle, or as part of the possible specialized plates.
  • the adjustable connection may imply that the baffle is detachably connected to a plate.
  • the baffle may be positioned with a first part in contact only to said heat transfer plate through the fastening means positioned between said first part and the rim of the plate.
  • the fastening means may comprise or act on biasing means pushing the baffle against the inner surface of the shell. In this manner the positioning is done possible by fixing the baffle to the plate(s) and at the same time stabilizing it by squeezing it between the plate(s) and inner surface of the shell.
  • the first part may be formed with a plural of flexible flaps forming biasing means, which when bend pushes the baffle against the inner surface of the shell when being bend slightly.
  • the baffle may comprise a second part connected to the first part, said second part being positioned against the inner surface of the shell and being flexible to allow it to adapt to the inner shell surface curvature.
  • the baffle may comprise a third part connected to the surface of the rim of said plate reaching into the space of said outer distribution chamber forming part of the flow barrier.
  • the said third part may be connected to said first part.
  • a fourth part may be sandwiched between said first part and said third part.
  • the first port connections and baffle may be positioned in the same of a first or a second of said outer distribution chambers, where said baffle is positioned between a first and second of said first port connections.
  • At least one baffle is positioned in said first outer distribution chamber, and at least one baffle is positioned in said second of the outer distribution chamber.
  • the present invention further relates to a method to assemble a baffle in a plate heat exchanger comprising - a plate stack of patterned heat exchange plates arranged on top of each other and positioned within a shell and defining a first flow path and a second flow path between the plates, where outer distribution chambers are formed in the space between the other edges of the heat transfer plates and the inside wall of the shell being in fluid communication to the first flow path and first port connections, said method including to position said baffle in an outer distribution chamber separating it into two outer sub-chambers forming a flow barrier between said two outer sub-chambers, and fixing it detachable and adjustable by activating fastening means pushing the baffle against the inner surface of the shell.
  • the fastening means may comprise or act on biasing means pushing the baffle against the inner surface of the shell.
  • the method may be used on a heat exchanger according to any of the embodiment.
  • Fig 1 illustrate an embodiment of a shell type heat exchanger (1), where plural of patterned heat transfer plates (10) are arranged on top of each other to form a plate stack (2).
  • the plate stack (2) is positioned within a shell (300) which may be a tube e.g. with circular cross area section, the heat transfer plates (10) possible being circular accordingly, as illustrated in e.g. fig. 3 .
  • End covers (310) then may be connected to the open ends of the shell (300) to fully enclose the plate stack (2) in a sealed manner within.
  • the heat transfer plates (10) comprises openings (11) and is at the one side connected to the rim of openings (11), e.g. by brazing or welding.
  • the first fluid to flow in the first flow path then enters and leaves at the rim of the heat transfer plates (10).
  • the heat transfer plates (10) is connected at their rim (15) e.g. by brazing or welding.
  • the second fluid to flow in the second flow path then enters and leaves through the openings (11).
  • the openings (11) of the connected heat transfer plates (10) defines inner inlet and outlet distribution chambers for the individual flow paths
  • First port connections (6a, 6b) may be formed in the shell (300) and/or the end covers (310) forming connection to e.g. external flow pipe systems and acting as fluid inlet and outlet for the outer distribution chambers (4, 5) and thus the first flow path
  • Second port connections (7a, 7b) may be formed in the shell (300) and/or the end covers (310) forming connection to e.g. external flow pipe systems and acting as fluid inlet and outlet for the inner distribution chambers and thus the second flow path
  • the performance of the heat exchanger can be improved by forming a multi-pass heat exchanger where the heat exchange mediums pass each other several times.
  • This can be implemented by including baffles, or stoppers, diverging the medium back and forth across the plate pack a plural of times.
  • the number of passes depend on the number, and positioning, of baffles. For this it is an advantage if the baffle forms tight barriers, even when the basic shape of the baffle (100) does not match the inner wall shape of the shell (100).
  • the present invention introduces a baffle (100) being positioned in an outer distribution chamber (4, 5) separating it into two outer sub-chambers (4a, 4b) forming a flow barrier between said outer sub-chambers (4a, 4b).
  • the illustration in fig. 1 shows the simplest embodiment with one baffle (100) positioned in a first outer distribution chamber (4), and that both first port connections (6a, 6b) are positioned in fluid communication with the same first outer distribution chamber (4). Fluid entering in inlet (6a) is distributed in the first outer sub-chamber (4a) to all the connected first flow paths formed between the heat transfer plates (10).
  • the fluid is flows to second outer distribution chamber (5) where it is distributed to the remaining of the first flow paths being connected to the second outer sub-chambers (4b). Finally, the flow reaches the second outer sub-chamber (4b) before leaving by outlet (6b). This is illustrated by the white arrows.
  • This one baffle (100) thus enables two passes of the fluid flow.
  • the first port connections (6a, 6b) and baffle (100) are positioned in the same of a first (4) or a second (5) of said outer distribution chambers, where said baffle (100) is positioned between a first (6a) and second (6b) of said first port connections.
  • a third path could be introduced by adding a baffle (100) in the second outer distribution chamber (5) to the one illustrated in fig. 1 , thus splitting this to two outer sub-chambers too, and move the outlet port connection (6b) to connect to the second outer distribution chamber (5).
  • baffles (100) Any such number of passes in principle can be introduced by adding baffles (100) and to position the inlet and outlet port connections (6a, 6b) accordingly.
  • baffle (100) however e.g. is welded or brazed into the heat exchanger (1), it would be difficult to be adjusted or changed.
  • the present invention therefore introduces the baffle (100) being adjustable and detachable in the manner it e.g. can be connected to any of a plural of said heat exchanger plates (10), or at any position between these, are easy to remove, but by adjustable is also meant that they can be made to fit tightly against the inner shell (300) wall.
  • first port connections (6a, 6b) are positioned in one or both of the end covers (310) otherwise being symmetric, and the external distribution chambers (4, 5) are positioned symmetric in the shell (300). Then the connection of e.g. the outlet first port connection (6b) simply can be changed between the first (4) and second (5) outer distribution chambers by rotating the respective end cover (310).
  • Fig. 2 is an enlarged view of the rim (15) section area of the connected heat transfer plates (10), the shell (300) and baffle (100) in the illustrated embodiment being connected to a sealing plate (20), such as to its rim (25).
  • the baffle (100) could be connected to the rim(s) (15) of heat transfer plate(s) (10).
  • the sealing plate (20) in the embodiment reaches further into the respective external distribution chamber (4, 5) than the heat transfer plates (10).
  • the sealing plate (20) rim (25) is aligned with the heat transfer plate (10) rims (15) or may even reach lesser into the external distribution chamber (4, 5) than these.
  • the sealing plate (20) may be substantially thicker than the heat transfer plates (10), as illustrated, and may e.g. be without patterns.
  • the sealing plate (20) is simply a heat transfer plate (20), or even a pair of heat transfer plates (10, 20) connected at their rims (15, 25) reaching further out than the other heat transfer plates (10).
  • the sealing plate (20) then as such forms part if the barrier.
  • sealing plate (20) may be inserted in a removable manner between any of the heat transfer plates (10).
  • Fig. 3 is a top view showing a heat transfer plate (10), or alternatively a sealing plate (20), inside the shell (300). Side sealings (350) is positioned to separate the space between the edges of the heat transfer plates (10) and the inner surface of the shell (300) separating the space into the first (4) and second (5) outer distribution chambers.
  • a baffle (100) is seen to be positioned in the first outer distribution chamber (4) fixed in position by fastening means (150).
  • Fig. 4 illustrates one such embodiment of an attachable and detachable baffle (100) to be positioned in connection to a heat transfer plate (10).
  • the baffle (100) is seen to be positioned with a first part (105) in contact to said plate (10, 20), either directly such as on its rim (15, 25), or as illustrated contacting the rim (15, 25) only through the fastening means (150).
  • the fastening means (150) is positioned between said first part (105) and the rim (15, 25) of the plate (10, 20).
  • 'plate' refers to be any of a heat transfer plate (10) or sealing plate (20).
  • baffle (100) is pushed against the inner surface of the shell (300) to stabilize its positioning in the distribution chambers (4, 5) under the influence of the forces of the fluid flow.
  • the one side of the baffle (100) being connected directly to the rim (15, 25) of the plate (10, 20) or indirectly through the fastening means (150), the other side being held in position by a pushing force and friction.
  • the biasing means (130) may be introduced pushing the baffle (100) against the inner surface of the shell (300) when the fastening means (150) are activated.
  • the biasing means (130) could be part of the fastening means (150), or as illustrated integrated in the baffle (150), or being separately inserted.
  • the biasing means (130) are formed as a plural of flexible flaps (130) in the first part (105), such as firmed by cuts.
  • the flaps (130) comprise some elasticity such that when bend by a force, the flaps (130) push back with the same force.
  • this effect is utilized by introducing fastening means (150) formed as a shaped bolt between one or more flaps (130) and the plate (10, 20) rim (15, 25).
  • the fastening means (150) comprises a first feature (155) positioned on a first rim (15, 25) surface, such as a nut connected at the one end of a specially formed bolt (160) of the fastening means (150).
  • the bolt (160) is shaped such that in one position of ration seen it forms a first diameter seen in the distance between the plate (10, 20) end and the inner surface of the shell (300), whereas in a second rotation it forms a second diameter larger than the first diameter.
  • the first position of rotation thus enables the insertion, and removal, of the baffle (100) and fastening means (150), and when rotation to the second position the larger diameter pushes to the flaps (130) to push the baffle (100) against the inner surface of the shell (300).
  • the fastening means (150) may at the opposite side relative to the first feature (155) comprise a second feature (165) contacting a second rim (15, 25) surface.
  • the first and second rim (15, 25) surfaces may be the respective outer rim surfaces (15, 25) of plates (10, 20) connected at their rim (15, 25).
  • the first feature (155) and second feature (165) in addition contacts and end of the first part (105) from both sides (e.g. the end of the contacted flap(s) (30)), thus fixing the baffle (100) and fastening means (150) to the rim (15, 25) of the plate(s) (10, 20).
  • a winding connection of e.g. the bolt (160) to the first feature (155), e.g. a nut, ensures that the rotation reduces the distance between first feature (155) and second feature (165) to tighten the fixation.
  • the baffle (100), such as the first part (105), may also comprise flexible openings for the introduction of the fastening means (150). These may be normally closed, but to be opened for the insertion of the fastening means (150). These flexible openings may simply be the biasing means (130), such as the illustrated flaps (130) allowing to bend.
  • the fastening means (150) such as a bolt, does not show a first and second diameter, but simply activates by being inserted trough the flexible openings.
  • the flaps (130) may operate as flexible openings allowing the insertion of the fastening means (150) which bends the flaps (130).
  • the first part (105) is not positioned at a distance to the plates (10, 20) but is positioned and fixed to a rim (15, 25) surface according to any embodiment.
  • the width of the baffle (100), or at least the first part (105), is such that the baffle (100) and fastening means (150) fits relatively loosely in the distribution chambers (4, 5) easing its insertion, or removal.
  • the fixation then is done by activating the fastening means (150), such as in the disclosed embodiments.
  • the baffle (100) in the embodiment as illustrated in fig. 4 further includes a second part (110) connected to the first part (105) being positioned against the inner surface of the shell (300). This adds to the stability of the baffle (100) as well as increases the connection and thus the friction of the baffle (100) against the inner surface of the shell (300).
  • the second part (110) may be formed to match some average curvature of the inner surface of the shell (300). It further may be flexible such that its curvature can change. In this situation, when the fastening means (150) acts on the first part (105), this and the second part (110) is pushed against the inner surface of the shell (300), where the flexibility ensures at least the second part (110) adapting to the shape of the shell (300) inner surface. The second part (110) then by the flexibility forms a first part of the flow barrier sealing the baffle (100) towards the shell (300).
  • the first part (105) could be made of a flexible material, e.g. a material being elastic.
  • the baffle (100) further includes to a third part (115) reaching into the space of said outer distribution chamber (4, 5) forming a second part of the flow barrier.
  • the third part (115) is in a sealing manner attached a plate (10, 20) rim (15, 25) preventing fluid flow from passing the baffle (100) in this section.
  • two third parts (115) is introduced sandwiching the rim (15, 25), first part (105) and a fourth part (120) of the baffle (100).
  • the fourth part (120) is a sealing positioned between the first part (105) and a second part (115) preventing fluid passing through this connection.
  • the third part (115) and second part (120) may comprise recesses or openings allowing the insertion of the fastening means (150).
  • the fastening means (150) themselves then form part of the barrier forming sealings of the openings or recesses when inserted.
  • Fig. 5 shows a top view of the first part (105) connected to the heat transfer plate (10) by fastening means (150) bending one or more of the biasing means (130), or flaps.
  • the present invention also relates to a method to assemble a baffle (100) in a shell heat exchanger (1), said method including to position said baffle (100) in an outer distribution chamber (4, 5) separating it into two outer sub-chambers (4a, 4b) forming a flow barrier between said two outer sub-chambers (4a, 4b), and fixing it detachable by activating fastening means (150) pushing the baffle (100) against the inner surface of the shell (300) when activated.
  • Fig. 6 illustrates another embodiment of an attachable and detachable baffle (100') operating as the embodiment of e.g. figs. 2 and 4 , but where the second part (110') is adapted push the baffle (100') against the inner surface of the shell (300'), instead of the fastening means (150).
  • the second part (110') in an embodiment operates as a spring element biased in an outward direction. At least sections of the second part (110') may be biased to reach further out than the extension of the inner of the shell (300'). In this case, the sections are biased such that they are being bend inwards by the inner surface of the shell (300') when inserted.
  • the whole circumference of the second part (110') extends with a larger diameter than the diameter of the inner surface of the shell (300'), and is formed as flaps bend relative to the first part (105') with an angle higher than 90 degree, such when inserted the flaps are deformed inwards pushing against the inner surface of the shell (300').
  • first part (105') may or may not be formed with flaps (130').
  • Two such elements comprising a first part (105') and second part (110') may be inserted at each side of the fourth part (120'), each possible sandwiched between the fourth part (120'), the sealing part, and third parts (115').
  • the two second parts (110') touch at least when inserted cooperating to fix the baffle (100') within the shell.
  • the second part (110) is formed flaps (130), but the second part (110) is

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP20204551.4A 2019-11-14 2020-10-29 Échangeur de chaleur à passages multiples Active EP3822572B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20204551T PL3822572T3 (pl) 2019-11-14 2020-10-29 Wieloprzebiegowy wymiennik ciepła

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201901332A DK180516B1 (en) 2019-11-14 2019-11-14 Multi-pass heat exchanger

Publications (2)

Publication Number Publication Date
EP3822572A1 true EP3822572A1 (fr) 2021-05-19
EP3822572B1 EP3822572B1 (fr) 2021-12-29

Family

ID=73037900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20204551.4A Active EP3822572B1 (fr) 2019-11-14 2020-10-29 Échangeur de chaleur à passages multiples

Country Status (6)

Country Link
US (1) US20210148641A1 (fr)
EP (1) EP3822572B1 (fr)
CN (1) CN112797825B (fr)
DK (2) DK180516B1 (fr)
PL (1) PL3822572T3 (fr)
RU (1) RU2745963C1 (fr)

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EP2594884A1 (fr) * 2011-11-16 2013-05-22 Vahterus Oy Échangeur thermique à plaques et procédé de fabrication d'un échangeur thermique à plaques
WO2014162041A1 (fr) * 2013-04-04 2014-10-09 Vahterus Oy Échangeur thermique à plaques et procédé de construction de plusieurs passages dans l'échangeur thermique à plaques
US20180112935A1 (en) * 2016-10-26 2018-04-26 Frost Co., Ltd. Disk bundle type heat-exchanger

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DK201901332A1 (en) 2021-06-03
RU2745963C1 (ru) 2021-04-05
EP3822572B1 (fr) 2021-12-29
DK3822572T3 (da) 2022-03-21
CN112797825B (zh) 2023-01-24
PL3822572T3 (pl) 2022-04-25
CN112797825A (zh) 2021-05-14
US20210148641A1 (en) 2021-05-20

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