US20230062508A1 - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
- Publication number
- US20230062508A1 US20230062508A1 US17/793,961 US202017793961A US2023062508A1 US 20230062508 A1 US20230062508 A1 US 20230062508A1 US 202017793961 A US202017793961 A US 202017793961A US 2023062508 A1 US2023062508 A1 US 2023062508A1
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- US
- United States
- Prior art keywords
- heat exchange
- annular
- exchange plate
- plate
- annular protrusion
- 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.)
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Links
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- 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
- F28D9/0075—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 the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
-
- 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
- F28D9/0031—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
- F28D9/005—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 the plates having openings therein for both heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
-
- 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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- 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 embodiments of the present invention relate to a plate heat exchanger.
- a plate heat exchanger comprises cover plates, heat exchange plates, ports, distributors, connecting pipes, etc.
- An objective of the embodiments of the present invention is to provide a plate heat exchanger, which can thus simplify the manufacturing process of the plate heat exchanger, for example.
- a plate heat exchanger comprising: a plurality of heat exchange plates, the plurality of heat exchange plates being arranged in a stacking direction to form a plurality of heat exchange spaces, and the plurality of heat exchange plates comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates; and a port formed in the heat exchange plates, the port communicating with a predetermined heat exchange space of the plurality of heat exchange spaces
- the first heat exchange plate comprises: 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 the stacking direction
- the second heat exchange plate comprises: 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 pro
- the plate heat exchanger further comprises: a communicating hole formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, wherein the port communicates with the predetermined heat exchange space through the communicating hole.
- the first annular protrusion of the first heat exchange plate comprises: an annular first portion extending from the first heat exchange plate main body toward the first side; and an annular second portion extending inwardly from the annular first portion, the second portion of the first annular protrusion having a surface facing the first side;
- the second annular protrusion of the second heat exchange plate comprises: an annular first portion extending from the second heat exchange plate main body toward the second side; and an annular second portion extending inwardly from the annular first portion of the second annular protrusion of the second heat exchange plate, the second portion of the second annular protrusion having a surface facing the second side; and the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion
- projections of the second portion of the first annular protrusion and the second portion of the second annular protrusion on a plane perpendicular to the stacking direction have an annular inner overlapping portion, and a projection of the communicating hole on the plane perpendicular to the stacking direction is outside the annular inner overlapping portion.
- at least one part of the projection of the second portion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion in the plane perpendicular to the stacking direction.
- the first heat exchange plate further comprises an annular portion surrounding the first annular protrusion
- the annular portion of the first heat exchange plate has a surface facing the second side
- the second heat exchange plate further comprises an annular portion surrounding the second annular protrusion
- the annular portion of the second heat exchange plate has a surface facing the first side
- the surface of the annular portion of the first heat exchange plate and the surface of the annular portion of the second heat exchange plate adjacent to each other are in at least partial contact to form a seal.
- projections of the annular portion of the first heat exchange plate and the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction have an annular outer overlapping portion, and the projection of the communicating hole on the plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
- At least one part of the projection of the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction is inside the projection of the annular portion of the first heat exchange plate in the plane perpendicular to the stacking direction.
- the communicating hole is in the annular second portions of the first annular protrusions of at least some of the first heat exchange plates and/or the communicating hole is in the annular portions of at least some of the second heat exchange plates.
- the first annular protrusion of the first heat exchange plate has a circular annular shape
- the second annular protrusion of the second heat exchange plate has a circular annular shape
- an outer diameter of the first annular protrusion of the first heat exchange plate is larger than an outer diameter of the second annular protrusion of the second heat exchange plate.
- the annular portion of the first heat exchange plate has a circular annular shape
- the annular portion of the second heat exchange plate has a circular annular shape
- an inner diameter of the annular portion of the second heat exchange plate is smaller than an inner diameter of the annular portion of the first heat exchange plate
- the annular portion of the first heat exchange plate adjoins the first portion of the first annular protrusion of the first heat exchange plate
- the annular portion of the second heat exchange plate adjoins the first portion of the second annular protrusion of the second heat exchange plate
- the first annular protrusion of the first heat exchange plate comprises an annular protrusion main body and a communicating protrusion extending outwardly from the annular protrusion main body; and at least one part of a projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular projection on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion of the first annular protrusion.
- the annular protrusion main body of the first annular protrusion of the first heat exchange plate has a circular annular shape
- the second annular protrusion of the second heat exchange plate has a circular annular shape
- an outer diameter of the annular protrusion main body of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate
- the projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion of the first annular protrusion.
- the communicating hole is a plurality of communicating holes
- the communicating protrusion is a plurality of spaced communicating protrusions.
- a surface of the second annular protrusion of the second heat exchange plate facing the second side has a second recessed portion, and the second recessed portion forms the communicating hole.
- the first annular protrusion of the first heat exchange plate has a circular annular shape
- the second protrusion of the second heat exchange plate has a circular annular shape
- an outer diameter of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate.
- annular first portion of the first annular protrusion of the first heat exchange plate extends obliquely from the first heat exchange plate main body toward the first side, and an annular second portion of the first annular protrusion of the first heat exchange plate extends inwardly from the annular first portion of the first annular protrusion of the first heat exchange plate substantially parallel to the first heat exchange plate main body; and an annular first portion of the second annular protrusion of the second heat exchange plate extends obliquely from the second heat exchange plate main body toward the second side, and an annular second portion of the second annular projection of the second heat exchange plate extends inwardly from the annular first portion of the second annular projection of the second heat exchange plate substantially parallel to the second heat exchange plate main body.
- the annular second portion of the first annular protrusion of the first heat exchange plate adjoins the first opening
- the annular second portion of the second annular projection of the second heat exchange plate adjoins the second opening
- the plurality of first heat exchange plates and the plurality of second heat exchange plates are alternately arranged in the stacking direction.
- the communicating hole is formed in the first heat exchange plates and/or the second heat exchange plates.
- the plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.
- FIG. 1 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to an embodiment of the present invention
- FIG. 2 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the embodiment of the present invention
- FIG. 3 is a schematic perspective view of a port portion of the plate heat exchanger according to the embodiment of the present invention.
- FIG. 4 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the embodiment of the present invention.
- FIG. 5 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to another embodiment of the present invention.
- FIG. 6 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the other embodiment of the present invention.
- FIG. 7 is a schematic perspective view of a port portion of the plate heat exchanger according to the other embodiment of the present invention.
- FIG. 8 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the other embodiment of the present invention.
- FIG. 9 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to yet another embodiment of the present invention.
- FIG. 10 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the yet another embodiment of the present invention.
- FIG. 11 is a schematic perspective view of a port portion of the plate heat exchanger according to the yet another embodiment of the present invention.
- FIG. 12 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the yet another embodiment of the present invention.
- FIG. 13 is a schematic perspective view of a plate heat exchanger according to an embodiment of the present invention.
- FIG. 14 is a schematic cross-sectional view of a port portion of the plate heat exchanger according to the embodiment of the present invention.
- FIG. 15 is a schematic enlarged cross-sectional view of the port portion of the plate heat exchanger shown in FIG. 14 ;
- FIG. 16 is a schematic perspective view of a plate heat exchanger according to another embodiment of the present invention.
- FIG. 17 is a schematic cross-sectional view of a port portion of the plate heat exchanger according to the other embodiment of the present invention.
- a plate heat exchanger 100 according to an embodiment of the present invention comprises a plurality of heat exchange plates 1 , 2 , 3 , 4 ( FIG. 17 ) and a port 93 formed in the heat exchange plates 1 , 2 , 3 , 4 .
- the plurality of heat exchange plates 1 , 2 , 3 , 4 are arranged in a stacking direction to form a plurality of heat exchange spaces A, B and C ( FIG.
- the plurality of heat exchange plates 1 , 2 , 3 , 4 comprising a plurality of first heat exchange plates 1 and a plurality of second heat exchange plates 2 ; and the port 93 communicates with a predetermined heat exchange space A of the plurality of heat exchange spaces A, B and C to distribute a heat exchange medium for the predetermined heat exchange space A.
- the plurality of first heat exchange plates 1 and the plurality of second heat exchange plates 2 are alternately arranged in the stacking direction to form alternately arranged first heat exchange spaces A and second heat exchange spaces B.
- the plurality of heat exchange plates 1 , 2 , 3 , 4 comprise a plurality of first heat exchange plates 1 , a plurality of second heat exchange plates 2 , a plurality of third heat exchange plates 3 and a plurality of fourth heat exchange plates 4
- the first heat exchange plate 1 , the second heat exchange plate 2 , the third heat exchange plate 3 and the fourth heat exchange plate 4 constitute one repeating unit.
- the plate heat exchanger 100 comprises a plurality of repeating units.
- the plurality of heat exchange spaces A, B and C comprise a first heat exchange space A, a second heat exchange space B and a third heat exchange space C which are separated from each other.
- the first heat exchange plate 1 comprises: a first heat exchange plate main body 10 ; a first opening 11 formed in the first heat exchange plate main body 10 for forming the port 93 ; and a first annular protrusion 12 surrounding the first opening 11 , adjoining the first opening 11 and protruding from the first heat exchange plate main body 10 toward a first side in the stacking direction.
- the second heat exchange plate 2 comprises: a second heat exchange plate main body 20 ; a second opening 21 formed in the second heat exchange plate main body 20 for forming the port 93 ; and a second annular protrusion 22 surrounding the second opening 21 , adjoining the second opening 21 and protruding from the second heat exchange plate main body 20 toward a second side opposite to the first side in the stacking direction.
- the sum of heights of the first annular protrusion 12 and the second annular protrusion 22 is equal to a height of the heat exchange space.
- the heights of the first annular protrusion 12 and the second annular protrusion 22 are equal to half of the height of the heat exchange space.
- the plate heat exchanger 100 in addition to the port 93 serving as a first heat exchange medium inlet port, the plate heat exchanger 100 further comprises a first heat exchange medium outlet 93 A, a second heat exchange medium inlet 93 B, and a second heat exchange medium outlet 93 C.
- the plate heat exchanger 100 in addition to the port 93 serving as the first heat exchange medium inlet port, the plate heat exchanger 100 further comprises a first heat exchange medium outlet 93 A, a second heat exchange medium inlet 93 B, a second heat exchange medium outlet 93 C, a third heat exchange medium inlet 93 D, and a third heat exchange medium outlet 93 E.
- the plurality of heat exchange plates 1 , 2 , 3 , 4 comprise a plurality of first heat exchange plates 1 , a plurality of second heat exchange plates 2 , a plurality of third heat exchange plates 3 and a plurality of fourth heat exchange plates 4 , and the first heat exchange plate 1 , the second heat exchange plate 2 , the third heat exchange plate 3 and the fourth heat exchange plate 4 constitute one repeating unit.
- the plate heat exchanger 100 may form three loops.
- the first heat exchange space A, the second heat exchange space B and the third heat exchange space C are separated from each other.
- a first heat exchange medium may be a refrigerant
- a second heat exchange medium may be water
- a third heat exchange medium may be a refrigerant.
- the first heat exchange plate 1 and the third heat exchange plate 3 may be the same in the port portion except that one of them has a communicating hole 95 and the other does not have the communicating hole 95 .
- the second heat exchange plate 2 and the fourth heat exchange plate 4 may be the same in the port portion. If the communicating hole 95 is formed in one of the second heat exchange plate 2 and the fourth heat exchange plate 4 , the first heat exchange plate 1 and the third heat exchange plate 3 may be the same at the port portion.
- the first heat exchange plate 1 and the third heat exchange plate 3 may be the same or different in the heat exchange portion, and the second heat exchange plate 2 and the fourth heat exchange plate 4 may be the same or different in the heat exchange portion.
- the third heat exchange plate 3 may be considered as the first heat exchange plate 1 , but has a heat exchange portion that is the same as or different from that of the first heat exchange plate 1 , and may or may not have communicating hole 95 , regardless of whether the first heat exchange plate 1 has the communicating hole 95 or not.
- the fourth heat exchange plate 4 may be considered as the second heat exchange plate 2 , but has a heat exchange portion that is the same as or different from that of the second heat exchange plate 2 , and may or may not have the communicating hole 95 , regardless of whether the second heat exchange plate 2 has the communicating hole 95 or not.
- the port portion comprises annular portions 14 , 24 and portions inside the annular portions 14 , 24 , and the heat exchange portion is a portion where the heat exchange space is located, and is outside the annular portions 14 , 24 .
- the first annular protrusion 12 of the first heat exchange plate 1 comprises: an annular first portion 1201 extending from the first heat exchange plate main body 10 toward the first side; and an annular second portion 1202 extending inwardly from the annular first portion 1201 , the second portion 1202 of the first annular protrusion 12 having a surface 1203 facing the first side.
- the second annular protrusion 22 of the second heat exchange plate 2 comprises: an annular first portion 2201 extending from the second heat exchange plate main body 20 toward the second side; and an annular second portion 2202 extending inwardly from the annular first portion 2201 of the second annular protrusion 22 of the second heat exchange plate 2 , the second portion 2202 of the second annular protrusion 22 having a surface 2203 facing the second side.
- the surface 1203 of the second portion 1202 of the first annular protrusion 12 and the surface 2203 of the second portion 2202 of the second annular protrusion 22 adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface 1203 of the second portion 1202 of the first annular protrusion 12 and the surface 2203 of the second portion 2202 of the second annular protrusion 22 .
- a heat exchange medium from the port 93 does not flow into a predetermined heat exchange space A between the entire surface 1203 of the second portion 1202 of the first annular protrusion 12 and the surface 2203 of the second portion 2202 of the second annular protrusion 22 , but only flows into the predetermined heat exchange space A through the communicating hole 95 .
- the annular first portion 1201 of the first annular protrusion 12 of the first heat exchange plate 1 extends obliquely from the first heat exchange plate main body 10 toward the first side, and the annular second portion 1202 of the first annular protrusion 12 of the first heat exchange plate 1 extends inwardly from the annular first portion 1201 of the first annular protrusion 12 of the first heat exchange plate 1 substantially parallel to the first heat exchange plate main body 10 .
- the annular first portion 2201 of the second annular protrusion 22 of the second heat exchange plate 2 extends obliquely from the second heat exchange plate main body 20 toward the second side, and the annular second portion 2202 of the second annular projection 22 of the second heat exchange plate 2 extends inwardly from the annular first portion 2201 of the second annular projection 22 of the second heat exchange plate 2 substantially parallel to the second heat exchange plate main body 20 .
- the annular second portion 1202 of the first annular protrusion 12 of the first heat exchange plate 1 adjoins the first opening 11
- the annular second portion 2022 of the second annular protrusion 22 of the second heat exchange plate 2 adjoins the second opening 21 .
- the first heat exchange plate 1 further comprises an annular portion 14 surrounding the first annular protrusion 12
- the annular portion 14 of the first heat exchange plate 1 has a surface 15 facing the second side
- the second heat exchange plate 2 further comprises an annular portion 24 surrounding the second annular protrusion 22
- the annular portion 24 of the second heat exchange plate 2 has a surface 25 facing the first side
- the surface 15 of the annular portion 14 of the first heat exchange plate 1 and the surface 25 of the annular portion 24 of the second heat exchange plate 2 adjacent to each other are in at least partial contact to form a seal.
- the heat exchange medium from the port 93 does not flow into other heat exchange spaces B and C other than the predetermined heat exchange space A.
- the plate heat exchanger further comprises a communicating hole 95 formed in at least some of the first heat exchange plates 1 and/or at least some of the second heat exchange plates 2 , wherein the port 93 communicates with the predetermined heat exchange space A through the communicating hole 95 .
- the communicating hole 95 may have any suitable shape, such as a circular shape, a semicircular shape, an oval shape, a quadrangular shape or the like.
- projections of the second portion 1202 of the first annular protrusion 12 and the second portion 2202 of the second annular protrusion 22 on a plane perpendicular to the stacking direction have an annular inner overlapping portion (e.g., a radially inner overlapping portion), and a projection of the communicating hole 95 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the annular inner overlapping portion.
- At least one part of the projection of the second portion 1202 of the first annular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of the second portion 2202 of the second annular protrusion 22 on the plane perpendicular to the stacking direction.
- projections of the annular portion 14 of the first heat exchange plate 1 and the annular portion 24 of the second heat exchange plate 2 on the plane perpendicular to the stacking direction have an annular outer overlapping portion (e.g., a radially outer overlapping portion), and the projection of the communicating hole 95 on the plane perpendicular to the stacking direction is inside (e.g., radially inside) the annular outer overlapping portion.
- At least one part of the projection of the annular portion 24 of the second heat exchange plate 2 on the plane perpendicular to the stacking direction is inside (e.g., radially inside) the projection of the annular portion 14 of the first heat exchange plate 1 on the plane perpendicular to the stacking direction.
- the annular portion 14 of the first heat exchange plate 1 has a circular annular shape
- the annular portion 24 of the second heat exchange plate 2 has a circular annular shape
- an inner diameter of the annular portion 24 of the second heat exchange plate 2 is smaller than an inner diameter of the annular portion 14 of the first heat exchange plate 1 .
- the annular portion 14 of the first heat exchange plate 1 may adjoin the first portion 1201 of the first annular protrusion 12 of the first heat exchange plate 1
- the annular portion 24 of the second heat exchange plate 2 may adjoin the first portion 2201 of the second annular protrusion 22 of the second heat exchange plate 2 .
- the communicating hole 95 is in the annular second portions 1202 of the first annular protrusions 12 of at least some of the first heat exchange plates 1 and/or the communicating hole 95 is in the annular portions 24 of at least some of the second heat exchange plates 2 .
- the communicating hole 95 is formed in the first heat exchange plate 1 and/or the second heat exchange plate 2 .
- the communicating hole 95 is in the annular first portions 1201 of the first annular protrusions 12 of at least some of the first heat exchange plates 1 and/or the communicating hole 95 is in the annular first portions 2201 of at least some of the second heat exchange plates 2 .
- the first annular protrusion 12 and the second annular protrusion 22 may have the same shape and the same size.
- the communicating hole 95 is formed in the first heat exchange plate 1
- the communicating hole 95 may be formed in the second heat exchange plate 2 , or the communicating hole 95 may be formed in each of the first heat exchange plate 1and the second heat exchange plate 2 .
- one communicating hole 95 is formed in the first heat exchange plate 1
- a plurality of communicating holes 95 may be formed in the first heat exchange plate 1
- a plurality of communicating holes 95 are formed in the second heat exchange plate 2
- a plurality of communicating holes 95 are formed in each of the first heat exchange plate 1 and the second heat exchange plate 2 .
- the first annular protrusion 12 of the first heat exchange plate 1 has a circular annular shape
- the second annular protrusion 22 of the second heat exchange plate 2 has a circular annular shape
- an outer diameter of the first annular protrusion 12 of the first heat exchange plate 1 is larger than an outer diameter of the second annular protrusion 22 of the second heat exchange plate 2 .
- the first annular protrusion 12 of the first heat exchange plate 1 and the second annular protrusion 22 of the second heat exchange plate 2 may be substantially concentric.
- the first annular protrusion 12 of the first heat exchange plate 1 comprises an annular protrusion main body 120 and a communicating protrusion 121 extending outwardly (e.g., radially outwardly in a direction away from the center of the annular protrusion main body 120 ) from the annular protrusion main body 120 , and at least one part of a projection of the communicating protrusion 121 of the first annular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of the second portion 2202 of the second annular projection 22 on the plane perpendicular to the stacking direction, and the projection of the communicating hole 95 on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion 121 of the first annular protrusion 12 .
- the communicating hole 95 is formed in the communicating protrusion 121 of the first heat exchange plate 1
- the communicating hole 95 may be formed in the second heat exchange plate 2 , or the communicating hole 95 may be formed in each of the communicating protrusion 121 of the first heat exchange plate 1 and the second heat exchange plate 2 .
- one communicating hole 95 is formed in the communicating protrusion 121 of the first heat exchange plate 1
- a plurality of communicating protrusions 121 may also be provided.
- a plurality of communicating holes 95 are formed in the plurality of communicating protrusions 121 of the first heat exchange plate 1 , respectively, or a plurality of communicating holes 95 are formed in the second heat exchange plate 2 , or a plurality of communicating holes 95 are formed in each of the plurality of communicating protrusions 121 of the first heat exchange plate 1 and the second heat exchange plate 2 .
- the annular protrusion main body 120 of the first annular protrusion 12 of the first heat exchange plate 1 has a circular annular shape
- the second annular protrusion 22 of the second heat exchange plate 2 has a circular annular shape
- an outer diameter of the annular protrusion main body 120 of the first annular protrusion 12 of the first heat exchange plate 1 is substantially equal to an outer diameter of the second annular protrusion 22 of the second heat exchange plate 2 .
- the projection of the communicating protrusion 121 of the first annular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of the second portion 2202 of the second annular protrusion 22 on the plane perpendicular to the stacking direction, and the projection of the communicating hole 95 on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion 121 of the first annular protrusion 12 .
- the communicating hole 95 is a plurality of communicating holes 95
- the communicating protrusion 121 is a plurality of spaced communicating protrusions 121 .
- a surface 2203 of the second annular protrusion 22 of the second heat exchange plate 2 facing the second side has a recessed portion 2206 , which forms a communicating hole 95 .
- the surface 1203 of the first annular protrusion 12 of the first heat exchange plate 1 facing the first side has a recessed portion, which forms the communicating hole 95 .
- the surface 1203 of the first annular protrusion 12 of the first heat exchange plate 1 facing the first side has a recessed portion
- the surface 2203 of the second annular protrusion 22 of the second heat exchange plate 2 facing the second side has a recessed portion 2206
- the recessed portion of the surface 1203 of the first annular protrusion 12 of the first heat exchange plate 1 facing the first side and the recessed portion 2206 of the surface 2203 of the second annular protrusion 22 of the second heat exchange plate 2 facing the second side are aligned in the stacking direction to form a communicating hole 95 , or are misaligned to form communicating holes 95 , respectively.
- an insert with a hole may be placed in the recessed portion to ensure the accuracy of the communicating hole.
- the first annular protrusion 12 of the first heat exchange plate 1 has a circular annular shape
- the second protrusion of the second heat exchange plate 2 has a circular annular shape
- an outer diameter of the first annular protrusion 12 of the first heat exchange plate 1 is substantially equal to an outer diameter of the second annular protrusion 22 of the second heat exchange plate 2 .
- the concepts according to the embodiments of the present invention can be applied to any plate heat exchanger, not limited to the heat exchangers shown in the figures. That is, the port portion of the heat exchange plate of the plate heat exchanger according to the embodiments of the present invention can be applied to any plate heat exchanger.
- the plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.
- a separate distributor may be omitted for the plate heat exchanger.
- the use of the plate heat exchanger according to the embodiments of the present invention can reduce the cost.
- an integrated distributor is formed on the heat exchange plate by means of stamping.
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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.
Description
- This application is a National Stage application of International Patent Application No. PCT/CN2020/128673, filed on Nov. 13, 2020, which claims priority to Chinese Application No. 202010073885.3, filed Jan. 22, 2020, each of which is hereby incorporated by reference in its entirety.
- The embodiments of the present invention relate to a plate heat exchanger.
- A plate heat exchanger comprises cover plates, heat exchange plates, ports, distributors, connecting pipes, etc.
- An objective of the embodiments of the present invention is to provide a plate heat exchanger, which can thus simplify the manufacturing process of the plate heat exchanger, for example.
- According to an embodiment of the present invention, there is provided a plate heat exchanger comprising: a plurality of heat exchange plates, the plurality of heat exchange plates being arranged in a stacking direction to form a plurality of heat exchange spaces, and the plurality of heat exchange plates comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates; and a port formed in the heat exchange plates, the port communicating with a predetermined heat exchange space of the plurality of heat exchange spaces, wherein the first heat exchange plate comprises: 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 the stacking direction; and the second heat exchange plate comprises: 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 to the first side in the stacking direction.
- According to an embodiment of the present invention, the plate heat exchanger further comprises: a communicating hole formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, wherein the port communicates with the predetermined heat exchange space through the communicating hole.
- According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate comprises: an annular first portion extending from the first heat exchange plate main body toward the first side; and an annular second portion extending inwardly from the annular first portion, the second portion of the first annular protrusion having a surface facing the first side; the second annular protrusion of the second heat exchange plate comprises: an annular first portion extending from the second heat exchange plate main body toward the second side; and an annular second portion extending inwardly from the annular first portion of the second annular protrusion of the second heat exchange plate, the second portion of the second annular protrusion having a surface facing the second side; and the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion.
- According to an embodiment of the present invention, projections of the second portion of the first annular protrusion and the second portion of the second annular protrusion on a plane perpendicular to the stacking direction have an annular inner overlapping portion, and a projection of the communicating hole on the plane perpendicular to the stacking direction is outside the annular inner overlapping portion. According to an embodiment of the present invention, at least one part of the projection of the second portion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion in the plane perpendicular to the stacking direction.
- According to an embodiment of the present invention, the first heat exchange plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchange plate has a surface facing the second side, the second heat exchange plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchange plate has a surface facing the first side, and the surface of the annular portion of the first heat exchange plate and the surface of the annular portion of the second heat exchange plate adjacent to each other are in at least partial contact to form a seal.
- According to an embodiment of the present invention, projections of the annular portion of the first heat exchange plate and the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction have an annular outer overlapping portion, and the projection of the communicating hole on the plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
- According to an embodiment of the present invention, at least one part of the projection of the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction is inside the projection of the annular portion of the first heat exchange plate in the plane perpendicular to the stacking direction.
- According to an embodiment of the present invention, the communicating hole is in the annular second portions of the first annular protrusions of at least some of the first heat exchange plates and/or the communicating hole is in the annular portions of at least some of the second heat exchange plates.
- According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is larger than an outer diameter of the second annular protrusion of the second heat exchange plate.
- According to an embodiment of the present invention, the annular portion of the first heat exchange plate has a circular annular shape, the annular portion of the second heat exchange plate has a circular annular shape, and an inner diameter of the annular portion of the second heat exchange plate is smaller than an inner diameter of the annular portion of the first heat exchange plate.
- According to an embodiment of the present invention, the annular portion of the first heat exchange plate adjoins the first portion of the first annular protrusion of the first heat exchange plate, and the annular portion of the second heat exchange plate adjoins the first portion of the second annular protrusion of the second heat exchange plate.
- According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate comprises an annular protrusion main body and a communicating protrusion extending outwardly from the annular protrusion main body; and at least one part of a projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular projection on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion of the first annular protrusion.
- According to an embodiment of the present invention, the annular protrusion main body of the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the annular protrusion main body of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate; and the projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion of the first annular protrusion.
- According to an embodiment of the present invention, the communicating hole is a plurality of communicating holes, and the communicating protrusion is a plurality of spaced communicating protrusions.
- According to an embodiment of the present invention, a surface of the second annular protrusion of the second heat exchange plate facing the second side has a second recessed portion, and the second recessed portion forms the communicating hole.
- According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate has a circular annular shape, the second protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate.
- According to an embodiment of the present invention, an annular first portion of the first annular protrusion of the first heat exchange plate extends obliquely from the first heat exchange plate main body toward the first side, and an annular second portion of the first annular protrusion of the first heat exchange plate extends inwardly from the annular first portion of the first annular protrusion of the first heat exchange plate substantially parallel to the first heat exchange plate main body; and an annular first portion of the second annular protrusion of the second heat exchange plate extends obliquely from the second heat exchange plate main body toward the second side, and an annular second portion of the second annular projection of the second heat exchange plate extends inwardly from the annular first portion of the second annular projection of the second heat exchange plate substantially parallel to the second heat exchange plate main body.
- According to an embodiment of the present invention, the annular second portion of the first annular protrusion of the first heat exchange plate adjoins the first opening, and the annular second portion of the second annular projection of the second heat exchange plate adjoins the second opening.
- According to an embodiment of the present invention, the plurality of first heat exchange plates and the plurality of second heat exchange plates are alternately arranged in the stacking direction.
- According to an embodiment of the present invention, the communicating hole is formed in the first heat exchange plates and/or the second heat exchange plates.
- The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example.
-
FIG. 1 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to an embodiment of the present invention; -
FIG. 2 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the embodiment of the present invention; -
FIG. 3 is a schematic perspective view of a port portion of the plate heat exchanger according to the embodiment of the present invention; -
FIG. 4 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the embodiment of the present invention; -
FIG. 5 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to another embodiment of the present invention; -
FIG. 6 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the other embodiment of the present invention; -
FIG. 7 is a schematic perspective view of a port portion of the plate heat exchanger according to the other embodiment of the present invention; -
FIG. 8 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the other embodiment of the present invention; -
FIG. 9 is a schematic top view of a port portion of a first heat exchange plate of a plate heat exchanger according to yet another embodiment of the present invention; -
FIG. 10 is a schematic top view of a port portion of a second heat exchange plate of the plate heat exchanger according to the yet another embodiment of the present invention; -
FIG. 11 is a schematic perspective view of a port portion of the plate heat exchanger according to the yet another embodiment of the present invention; -
FIG. 12 is a schematic cross-sectional perspective view of the port portion of the plate heat exchanger according to the yet another embodiment of the present invention; -
FIG. 13 is a schematic perspective view of a plate heat exchanger according to an embodiment of the present invention; -
FIG. 14 is a schematic cross-sectional view of a port portion of the plate heat exchanger according to the embodiment of the present invention; -
FIG. 15 is a schematic enlarged cross-sectional view of the port portion of the plate heat exchanger shown inFIG. 14 ; -
FIG. 16 is a schematic perspective view of a plate heat exchanger according to another embodiment of the present invention; and -
FIG. 17 is a schematic cross-sectional view of a port portion of the plate heat exchanger according to the other embodiment of the present invention. - The present invention is explained further below in conjunction with the accompanying drawing and specific implementations.
- Referring to
FIGS. 1 to 17 , aplate heat exchanger 100 according to an embodiment of the present invention comprises a plurality ofheat exchange plates FIG. 17 ) and aport 93 formed in theheat exchange plates heat exchange plates FIG. 17 ), the plurality ofheat exchange plates heat exchange plates 1 and a plurality of secondheat exchange plates 2; and theport 93 communicates with a predetermined heat exchange space A of the plurality of heat exchange spaces A, B and C to distribute a heat exchange medium for the predetermined heat exchange space A. In the embodiments shown inFIGS. 1 to 15 , the plurality of firstheat exchange plates 1 and the plurality of secondheat exchange plates 2 are alternately arranged in the stacking direction to form alternately arranged first heat exchange spaces A and second heat exchange spaces B. In the embodiments shown inFIGS. 16 and 17 , the plurality ofheat exchange plates heat exchange plates 1, a plurality of secondheat exchange plates 2, a plurality of thirdheat exchange plates 3 and a plurality of fourth heat exchange plates 4, and the firstheat exchange plate 1, the secondheat exchange plate 2, the thirdheat exchange plate 3 and the fourth heat exchange plate 4 constitute one repeating unit. Theplate heat exchanger 100 comprises a plurality of repeating units. The plurality of heat exchange spaces A, B and C comprise a first heat exchange space A, a second heat exchange space B and a third heat exchange space C which are separated from each other. The firstheat exchange plate 1 comprises: a first heat exchange platemain body 10; afirst opening 11 formed in the first heat exchange platemain body 10 for forming theport 93; and a firstannular protrusion 12 surrounding thefirst opening 11, adjoining thefirst opening 11 and protruding from the first heat exchange platemain body 10 toward a first side in the stacking direction. The secondheat exchange plate 2 comprises: a second heat exchange platemain body 20; asecond opening 21 formed in the second heat exchange platemain body 20 for forming theport 93; and a secondannular protrusion 22 surrounding thesecond opening 21, adjoining thesecond opening 21 and protruding from the second heat exchange platemain body 20 toward a second side opposite to the first side in the stacking direction. The sum of heights of the firstannular protrusion 12 and the secondannular protrusion 22 is equal to a height of the heat exchange space. For example, the heights of the firstannular protrusion 12 and the secondannular protrusion 22 are equal to half of the height of the heat exchange space. - In some embodiments of the present invention, with reference to
FIGS. 13 and 14 , in addition to theport 93 serving as a first heat exchange medium inlet port, theplate heat exchanger 100 further comprises a first heatexchange medium outlet 93A, a second heatexchange medium inlet 93B, and a second heatexchange medium outlet 93C. - In other embodiments of the present invention, with reference to
FIGS. 16 and 17 , in addition to theport 93 serving as the first heat exchange medium inlet port, theplate heat exchanger 100 further comprises a first heatexchange medium outlet 93A, a second heatexchange medium inlet 93B, a second heatexchange medium outlet 93C, a third heatexchange medium inlet 93D, and a third heatexchange medium outlet 93E. The plurality ofheat exchange plates heat exchange plates 1, a plurality of secondheat exchange plates 2, a plurality of thirdheat exchange plates 3 and a plurality of fourth heat exchange plates 4, and the firstheat exchange plate 1, the secondheat exchange plate 2, the thirdheat exchange plate 3 and the fourth heat exchange plate 4 constitute one repeating unit. Theplate heat exchanger 100 may form three loops. The first heat exchange space A, the second heat exchange space B and the third heat exchange space C are separated from each other. A first heat exchange medium may be a refrigerant, a second heat exchange medium may be water, and a third heat exchange medium may be a refrigerant. The firstheat exchange plate 1 and the thirdheat exchange plate 3 may be the same in the port portion except that one of them has a communicatinghole 95 and the other does not have the communicatinghole 95. The secondheat exchange plate 2 and the fourth heat exchange plate 4 may be the same in the port portion. If the communicatinghole 95 is formed in one of the secondheat exchange plate 2 and the fourth heat exchange plate 4, the firstheat exchange plate 1 and the thirdheat exchange plate 3 may be the same at the port portion. The firstheat exchange plate 1 and the thirdheat exchange plate 3 may be the same or different in the heat exchange portion, and the secondheat exchange plate 2 and the fourth heat exchange plate 4 may be the same or different in the heat exchange portion. The thirdheat exchange plate 3 may be considered as the firstheat exchange plate 1, but has a heat exchange portion that is the same as or different from that of the firstheat exchange plate 1, and may or may not have communicatinghole 95, regardless of whether the firstheat exchange plate 1 has the communicatinghole 95 or not. The fourth heat exchange plate 4 may be considered as the secondheat exchange plate 2, but has a heat exchange portion that is the same as or different from that of the secondheat exchange plate 2, and may or may not have the communicatinghole 95, regardless of whether the secondheat exchange plate 2 has the communicatinghole 95 or not. The port portion comprisesannular portions annular portions annular portions - In some embodiments of the present invention, with reference to
FIGS. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15 and 17 , the firstannular protrusion 12 of the firstheat exchange plate 1 comprises: an annularfirst portion 1201 extending from the first heat exchange platemain body 10 toward the first side; and an annularsecond portion 1202 extending inwardly from the annularfirst portion 1201, thesecond portion 1202 of the firstannular protrusion 12 having asurface 1203 facing the first side. The secondannular protrusion 22 of the secondheat exchange plate 2 comprises: an annularfirst portion 2201 extending from the second heat exchange platemain body 20 toward the second side; and an annularsecond portion 2202 extending inwardly from the annularfirst portion 2201 of the secondannular protrusion 22 of the secondheat exchange plate 2, thesecond portion 2202 of the secondannular protrusion 22 having asurface 2203 facing the second side. Thesurface 1203 of thesecond portion 1202 of the firstannular protrusion 12 and thesurface 2203 of thesecond portion 2202 of the secondannular protrusion 22 adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of thesurface 1203 of thesecond portion 1202 of the firstannular protrusion 12 and thesurface 2203 of thesecond portion 2202 of the secondannular protrusion 22. Thus, a heat exchange medium from theport 93 does not flow into a predetermined heat exchange space A between theentire surface 1203 of thesecond portion 1202 of the firstannular protrusion 12 and thesurface 2203 of thesecond portion 2202 of the secondannular protrusion 22, but only flows into the predetermined heat exchange space A through the communicatinghole 95. - Referring to
FIGS. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15 and 17 , according to an example of the present invention, the annularfirst portion 1201 of the firstannular protrusion 12 of the firstheat exchange plate 1 extends obliquely from the first heat exchange platemain body 10 toward the first side, and the annularsecond portion 1202 of the firstannular protrusion 12 of the firstheat exchange plate 1 extends inwardly from the annularfirst portion 1201 of the firstannular protrusion 12 of the firstheat exchange plate 1 substantially parallel to the first heat exchange platemain body 10. The annularfirst portion 2201 of the secondannular protrusion 22 of the secondheat exchange plate 2 extends obliquely from the second heat exchange platemain body 20 toward the second side, and the annularsecond portion 2202 of the secondannular projection 22 of the secondheat exchange plate 2 extends inwardly from the annularfirst portion 2201 of the secondannular projection 22 of the secondheat exchange plate 2 substantially parallel to the second heat exchange platemain body 20. For example, the annularsecond portion 1202 of the firstannular protrusion 12 of the firstheat exchange plate 1 adjoins thefirst opening 11, and the annularsecond portion 2022 of the secondannular protrusion 22 of the secondheat exchange plate 2 adjoins thesecond opening 21. - In some embodiments of the present invention, with reference to
FIGS. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15 and 17 , the firstheat exchange plate 1 further comprises anannular portion 14 surrounding the firstannular protrusion 12, theannular portion 14 of the firstheat exchange plate 1 has asurface 15 facing the second side, the secondheat exchange plate 2 further comprises anannular portion 24 surrounding the secondannular protrusion 22, theannular portion 24 of the secondheat exchange plate 2 has asurface 25 facing the first side, and thesurface 15 of theannular portion 14 of the firstheat exchange plate 1 and thesurface 25 of theannular portion 24 of the secondheat exchange plate 2 adjacent to each other are in at least partial contact to form a seal. Thus, the heat exchange medium from theport 93 does not flow into other heat exchange spaces B and C other than the predetermined heat exchange space A. - In some embodiments of the present invention, with reference to
FIGS. 1, 3, 4, 5, 7, 8, 11, 12, 15 and 17 , the plate heat exchanger further comprises a communicatinghole 95 formed in at least some of the firstheat exchange plates 1 and/or at least some of the secondheat exchange plates 2, wherein theport 93 communicates with the predetermined heat exchange space A through the communicatinghole 95. The communicatinghole 95 may have any suitable shape, such as a circular shape, a semicircular shape, an oval shape, a quadrangular shape or the like. - In some embodiments of the present invention, with reference to
FIGS. 4, 8, 14, 15 and 17 , projections of thesecond portion 1202 of the firstannular protrusion 12 and thesecond portion 2202 of the secondannular protrusion 22 on a plane perpendicular to the stacking direction have an annular inner overlapping portion (e.g., a radially inner overlapping portion), and a projection of the communicatinghole 95 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the annular inner overlapping portion. For example, at least one part of the projection of thesecond portion 1202 of the firstannular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of thesecond portion 2202 of the secondannular protrusion 22 on the plane perpendicular to the stacking direction. - In some embodiments of the present invention, referring to
FIGS. 4, 8, 14 and 16 , projections of theannular portion 14 of the firstheat exchange plate 1 and theannular portion 24 of the secondheat exchange plate 2 on the plane perpendicular to the stacking direction have an annular outer overlapping portion (e.g., a radially outer overlapping portion), and the projection of the communicatinghole 95 on the plane perpendicular to the stacking direction is inside (e.g., radially inside) the annular outer overlapping portion. For example, at least one part of the projection of theannular portion 24 of the secondheat exchange plate 2 on the plane perpendicular to the stacking direction is inside (e.g., radially inside) the projection of theannular portion 14 of the firstheat exchange plate 1 on the plane perpendicular to the stacking direction. For example, theannular portion 14 of the firstheat exchange plate 1 has a circular annular shape, theannular portion 24 of the secondheat exchange plate 2 has a circular annular shape, and an inner diameter of theannular portion 24 of the secondheat exchange plate 2 is smaller than an inner diameter of theannular portion 14 of the firstheat exchange plate 1. Theannular portion 14 of the firstheat exchange plate 1 may adjoin thefirst portion 1201 of the firstannular protrusion 12 of the firstheat exchange plate 1, and theannular portion 24 of the secondheat exchange plate 2 may adjoin thefirst portion 2201 of the secondannular protrusion 22 of the secondheat exchange plate 2. - In some embodiments of the present invention, with reference to
FIGS. 4, 8, 14, 15 and 17 , the communicatinghole 95 is in the annularsecond portions 1202 of the firstannular protrusions 12 of at least some of the firstheat exchange plates 1 and/or the communicatinghole 95 is in theannular portions 24 of at least some of the secondheat exchange plates 2. Thus, it is easy to machine the communicatinghole 95 with high accuracy, and it is not easily blocked. For example, in the embodiment shown inFIG. 14 , the communicatinghole 95 is formed in the firstheat exchange plate 1 and/or the secondheat exchange plate 2. - In some embodiments of the present invention, with reference to
FIGS. 4, 8, 14, 15 and 17 , the communicatinghole 95 is in the annularfirst portions 1201 of the firstannular protrusions 12 of at least some of the firstheat exchange plates 1 and/or the communicatinghole 95 is in the annularfirst portions 2201 of at least some of the secondheat exchange plates 2. Thus, the firstannular protrusion 12 and the secondannular protrusion 22 may have the same shape and the same size. - Although it is shown in
FIGS. 1, 3, 4, 5, 7 and 8 that the communicatinghole 95 is formed in the firstheat exchange plate 1, the communicatinghole 95 may be formed in the secondheat exchange plate 2, or the communicatinghole 95 may be formed in each of the first heat exchange plate 1and the secondheat exchange plate 2. In addition, although it is shown inFIGS. 1, 3, 4, 5, 7 and 8 that one communicatinghole 95 is formed in the firstheat exchange plate 1, but a plurality of communicatingholes 95 may be formed in the firstheat exchange plate 1, a plurality of communicatingholes 95 are formed in the secondheat exchange plate 2, or a plurality of communicatingholes 95 are formed in each of the firstheat exchange plate 1 and the secondheat exchange plate 2. - In some embodiments of the present invention, referring to
FIG. 8 , the firstannular protrusion 12 of the firstheat exchange plate 1 has a circular annular shape, the secondannular protrusion 22 of the secondheat exchange plate 2 has a circular annular shape, and an outer diameter of the firstannular protrusion 12 of the firstheat exchange plate 1 is larger than an outer diameter of the secondannular protrusion 22 of the secondheat exchange plate 2. When viewed in the stacking direction, the firstannular protrusion 12 of the firstheat exchange plate 1 and the secondannular protrusion 22 of the secondheat exchange plate 2 may be substantially concentric. - In some embodiments of the present invention, referring to
FIG. 4 , the firstannular protrusion 12 of the firstheat exchange plate 1 comprises an annular protrusionmain body 120 and a communicatingprotrusion 121 extending outwardly (e.g., radially outwardly in a direction away from the center of the annular protrusion main body 120) from the annular protrusionmain body 120, and at least one part of a projection of the communicatingprotrusion 121 of the firstannular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of thesecond portion 2202 of the secondannular projection 22 on the plane perpendicular to the stacking direction, and the projection of the communicatinghole 95 on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicatingprotrusion 121 of the firstannular protrusion 12. Although it is shown inFIGS. 1, 3 and 4 that the communicatinghole 95 is formed in the communicatingprotrusion 121 of the firstheat exchange plate 1, the communicatinghole 95 may be formed in the secondheat exchange plate 2, or the communicatinghole 95 may be formed in each of the communicatingprotrusion 121 of the firstheat exchange plate 1 and the secondheat exchange plate 2. In addition, although it is shown inFIGS. 1, 3 and 4 that one communicatinghole 95 is formed in the communicatingprotrusion 121 of the firstheat exchange plate 1, a plurality of communicatingprotrusions 121 may also be provided. Thus, a plurality of communicatingholes 95 are formed in the plurality of communicatingprotrusions 121 of the firstheat exchange plate 1, respectively, or a plurality of communicatingholes 95 are formed in the secondheat exchange plate 2, or a plurality of communicatingholes 95 are formed in each of the plurality of communicatingprotrusions 121 of the firstheat exchange plate 1 and the secondheat exchange plate 2. - In some embodiments of the present invention, with reference to
FIGS. 1 to 4 , the annular protrusionmain body 120 of the firstannular protrusion 12 of the firstheat exchange plate 1 has a circular annular shape, the secondannular protrusion 22 of the secondheat exchange plate 2 has a circular annular shape, and an outer diameter of the annular protrusionmain body 120 of the firstannular protrusion 12 of the firstheat exchange plate 1 is substantially equal to an outer diameter of the secondannular protrusion 22 of the secondheat exchange plate 2. Moreover, the projection of the communicatingprotrusion 121 of the firstannular protrusion 12 on the plane perpendicular to the stacking direction is outside (e.g., radially outside) the projection of thesecond portion 2202 of the secondannular protrusion 22 on the plane perpendicular to the stacking direction, and the projection of the communicatinghole 95 on the plane perpendicular to the stacking direction is in the projection of the communicatingprotrusion 121 of the firstannular protrusion 12. - In some embodiments of the present invention, with reference to
FIGS. 1 to 4 , the communicatinghole 95 is a plurality of communicatingholes 95, and the communicatingprotrusion 121 is a plurality of spaced communicatingprotrusions 121. - In some embodiments of the present invention, with reference to
FIGS. 11 and 12 , asurface 2203 of the secondannular protrusion 22 of the secondheat exchange plate 2 facing the second side has a recessedportion 2206, which forms a communicatinghole 95. Thus, it is only necessary to machine a recessed portion on one side of the secondheat exchange plate 2, which is convenient for machining with high accuracy. Optionally, thesurface 1203 of the firstannular protrusion 12 of the firstheat exchange plate 1 facing the first side has a recessed portion, which forms the communicatinghole 95. Alternatively, thesurface 1203 of the firstannular protrusion 12 of the firstheat exchange plate 1 facing the first side has a recessed portion, thesurface 2203 of the secondannular protrusion 22 of the secondheat exchange plate 2 facing the second side has a recessedportion 2206, and the recessed portion of thesurface 1203 of the firstannular protrusion 12 of the firstheat exchange plate 1 facing the first side and the recessedportion 2206 of thesurface 2203 of the secondannular protrusion 22 of the secondheat exchange plate 2 facing the second side are aligned in the stacking direction to form a communicatinghole 95, or are misaligned to form communicatingholes 95, respectively. According to an example of the present invention, an insert with a hole may be placed in the recessed portion to ensure the accuracy of the communicating hole. For example, the firstannular protrusion 12 of the firstheat exchange plate 1 has a circular annular shape, the second protrusion of the secondheat exchange plate 2 has a circular annular shape, and an outer diameter of the firstannular protrusion 12 of the firstheat exchange plate 1 is substantially equal to an outer diameter of the secondannular protrusion 22 of the secondheat exchange plate 2. - The concepts according to the embodiments of the present invention can be applied to any plate heat exchanger, not limited to the heat exchangers shown in the figures. That is, the port portion of the heat exchange plate of the plate heat exchanger according to the embodiments of the present invention can be applied to any plate heat exchanger.
- The plate heat exchanger according to the embodiments of the present invention can simplify the manufacturing process of the plate heat exchanger, for example. A separate distributor may be omitted for the plate heat exchanger. In addition, the use of the plate heat exchanger according to the embodiments of the present invention can reduce the cost.
- According to the plate heat exchanger of the embodiments of the present invention, an integrated distributor is formed on the heat exchange plate by means of stamping.
- It must be explained that features in one or more of the embodiments above may be combined to form new embodiments. A feature in one embodiment may be used in another embodiment, unless the feature in one embodiment clashes with the technical solution of the other embodiment.
Claims (20)
1. A plate heat exchanger, comprising:
a plurality of heat exchange plates, the plurality of heat exchange plates being arranged in a stacking direction to form a plurality of heat exchange spaces, and the plurality of heat exchange plates comprising a plurality of first heat exchange plates and a plurality of second heat exchange plates; and
a port formed in the heat exchange plates, the port communicating with a predetermined heat exchange space of the plurality of heat exchange spaces, wherein
the first heat exchange plate comprises: 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 the stacking direction; and
the second heat exchange plate comprises: 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 to the first side in the stacking direction.
2. The plate heat exchanger as claimed in claim 1 , further comprising:
a communicating hole formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, wherein the port communicates with the predetermined heat exchange space through the communicating hole.
3. The plate heat exchanger as claimed in claim 2 , wherein:
the first annular protrusion of the first heat exchange plate comprises: an annular first portion extending from the first heat exchange plate main body toward the first side; and an annular second portion extending inwardly from the annular first portion, the second portion of the first annular protrusion having a surface facing the first side;
the second annular protrusion of the second heat exchange plate comprises: an annular first portion extending from the second heat exchange plate main body toward the second side; and an annular second portion extending inwardly from the annular first portion of the second annular protrusion of the second heat exchange plate, the second portion of the second annular protrusion having a surface facing the second side; and
the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion adjacent to each other are in at least partial contact to form a seal over at least one part of a circumferential length of the surface of the second portion of the first annular protrusion and the surface of the second portion of the second annular protrusion.
4. The plate heat exchanger as claimed in claim 3 , wherein:
projections of the second portion of the first annular protrusion and the second portion of the second annular protrusion on a plane perpendicular to the stacking direction have an annular inner overlapping portion, and
a projection of the communicating hole on the plane perpendicular to the stacking direction is outside the annular inner overlapping portion.
5. The plate heat exchanger as claimed in claim 4 , wherein:
at least one part of the projection of the second portion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion in the plane perpendicular to the stacking direction.
6. The plate heat exchanger as claimed in claim 4 , wherein:
the first heat exchange plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchange plate has a surface facing the second side, the second heat exchange plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchange plate has a surface facing the first side, and the surface of the annular portion of the first heat exchange plate and the surface of the annular portion of the second heat exchange plate adjacent to each other are in at least partial contact to form a seal.
7. The plate heat exchanger as claimed in claim 6 , wherein:
projections of the annular portion of the first heat exchange plate and the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction have an annular outer overlapping portion, and
the projection of the communicating hole on the plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
8. The plate heat exchanger as claimed in claim 6 , wherein:
at least one part of the projection of the annular portion of the second heat exchange plate on the plane perpendicular to the stacking direction is inside the projection of the annular portion of the first heat exchange plate in the plane perpendicular to the stacking direction.
9. The plate heat exchanger as claimed in claim 6 , wherein:
the communicating hole is in the annular second portions of the first annular protrusions of at least some of the first heat exchange plates and/or the communicating hole is in the annular portions of at least some of the second heat exchange plates.
10. The plate heat exchanger as claimed in claim 3 , wherein:
the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is larger than an outer diameter of the second annular protrusion of the second heat exchange plate.
11. The plate heat exchanger as claimed in claim 6 , wherein:
the annular portion of the first heat exchange plate has a circular annular shape, the annular portion of the second heat exchange plate has a circular annular shape, and an inner diameter of the annular portion of the second heat exchange plate is smaller than an inner diameter of the annular portion of the first heat exchange plate.
12. The plate heat exchanger as claimed in claim 11 , wherein:
the annular portion of the first heat exchange plate adjoins the first portion of the first annular protrusion of the first heat exchange plate, and the annular portion of the second heat exchange plate adjoins the first portion of the second annular protrusion of the second heat exchange plate.
13. The plate heat exchanger as claimed in claim 4 , wherein:
the first annular protrusion of the first heat exchange plate comprises an annular protrusion main body and a communicating protrusion extending outwardly from the annular protrusion main body; and
at least one part of a projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular projection on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the at least one part of the projection of the communicating protrusion of the first annular protrusion.
14. The plate heat exchanger as claimed in claim 13 , wherein:
the annular protrusion main body of the first annular protrusion of the first heat exchange plate has a circular annular shape, the second annular protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the annular protrusion main body of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate; and
the projection of the communicating protrusion of the first annular protrusion on the plane perpendicular to the stacking direction is outside the projection of the second portion of the second annular protrusion on the plane perpendicular to the stacking direction, and the projection of the communicating hole on the plane perpendicular to the stacking direction is in the projection of the communicating protrusion of the first annular protrusion.
15. The plate heat exchanger as claimed in claim 13 , wherein:
the communicating hole is a plurality of communicating holes, and the communicating protrusion is a plurality of spaced communicating protrusions.
16. The plate heat exchanger as claimed in claim 2 , wherein:
a surface of the second annular protrusion of the second heat exchange plate facing the second side has a second recessed portion, and the second recessed portion forms the communicating hole.
17. The plate heat exchanger as claimed in claim 16 , wherein:
the first annular protrusion of the first heat exchange plate has a circular annular shape, the second protrusion of the second heat exchange plate has a circular annular shape, and an outer diameter of the first annular protrusion of the first heat exchange plate is substantially equal to an outer diameter of the second annular protrusion of the second heat exchange plate.
18. The plate heat exchanger as claimed in claim 1 , wherein:
an annular first portion of the first annular protrusion of the first heat exchange plate extends obliquely from the first heat exchange plate main body toward the first side, and an annular second portion of the first annular protrusion of the first heat exchange plate extends inwardly from the annular first portion of the first annular protrusion of the first heat exchange plate substantially parallel to the first heat exchange plate main body; and
an annular first portion of the second annular protrusion of the second heat exchange plate extends obliquely from the second heat exchange plate main body toward the second side, and an annular second portion of the second annular projection of the second heat exchange plate extends inwardly from the annular first portion of the second annular projection of the second heat exchange plate substantially parallel to the second heat exchange plate main body.
19. The plate heat exchanger as claimed in claim 18 , wherein:
the annular second portion of the first annular protrusion of the first heat exchange plate adjoins the first opening, and the annular second portion of the second annular projection of the second heat exchange plate adjoins the second opening.
20. The plate heat exchanger as claimed in claim 1 , wherein:
the plurality of first heat exchange plates and the plurality of second heat exchange plates are alternately arranged in the stacking direction.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010073885.3A CN113154910A (en) | 2020-01-22 | 2020-01-22 | Plate heat exchanger |
CN202010073885.3 | 2020-01-22 | ||
PCT/CN2020/128673 WO2021147479A1 (en) | 2020-01-22 | 2020-11-13 | Plate heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
US20230062508A1 true US20230062508A1 (en) | 2023-03-02 |
Family
ID=76881758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/793,961 Pending US20230062508A1 (en) | 2020-01-22 | 2020-11-13 | Plate heat exchanger |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230062508A1 (en) |
EP (1) | EP4095478A4 (en) |
CN (1) | CN113154910A (en) |
WO (1) | WO2021147479A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11920876B2 (en) * | 2020-12-10 | 2024-03-05 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Distributor for plate heat exchanger and plate heat exchanger |
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Also Published As
Publication number | Publication date |
---|---|
CN113154910A (en) | 2021-07-23 |
WO2021147479A1 (en) | 2021-07-29 |
EP4095478A4 (en) | 2024-02-14 |
EP4095478A1 (en) | 2022-11-30 |
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