CN113154910A - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
- Publication number
- CN113154910A CN113154910A CN202010073885.3A CN202010073885A CN113154910A CN 113154910 A CN113154910 A CN 113154910A CN 202010073885 A CN202010073885 A CN 202010073885A CN 113154910 A CN113154910 A CN 113154910A
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- China
- Prior art keywords
- heat exchanger
- annular
- plate
- projection
- heat exchange
- 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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Classifications
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- 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
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- 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
- F28D9/0037—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
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- 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
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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
- 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
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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
- 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
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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
- 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
Abstract
The embodiment of the invention discloses a plate heat exchanger. The plate heat exchanger comprises heat exchange plates and ports, wherein the ports are communicated with preset heat exchange spaces in a plurality of heat exchange spaces. The heat exchange plate of the plate heat exchanger comprises: a plurality of first heat exchanger plates and a plurality of second heat exchanger plates. The first heat exchange plate comprises: a first heat exchange plate main body; a first opening formed in the first heat exchanger plate body for forming a port; and a first annular protrusion surrounding the first opening, adjoining the first opening and protruding from the first heat exchanger plate body towards the first side in the stacking direction. The second heat exchange plate includes: a second heat exchange plate main body; a second opening formed in the second heat exchanger plate body for forming a port; and a second annular projection surrounding the second opening, adjoining the second opening and projecting from the second heat exchanger plate body towards a second side opposite to the first side in the stacking direction. The plate heat exchanger according to an embodiment of the invention may, for example, simplify the manufacturing process of the plate heat exchanger.
Description
Technical Field
Embodiments of the present invention relate to a plate heat exchanger.
Background
The plate heat exchanger comprises a cover plate, a heat exchange plate, ports, a distributor, a connecting pipe and the like.
Disclosure of Invention
It is an object of embodiments of the present invention to provide a plate heat exchanger, whereby the manufacturing process of the plate heat exchanger may be simplified, for example.
According to an embodiment of the present invention, there is provided a plate heat exchanger including: a plurality of heat exchange plates arranged in a stacking direction to form a plurality of heat exchange spaces, the plurality of heat exchange plates including a plurality of first heat exchange plates and a plurality of second heat exchange plates; and ports formed in the heat exchange plates, the ports communicating with predetermined heat exchange spaces among the plurality of heat exchange spaces, wherein the first heat exchange plate includes: a first heat exchange plate main body; a first opening formed in the first heat exchanger plate body for forming a port; and a first annular projection surrounding the first opening, adjoining the first opening and projecting from the first heat exchanger plate body towards the first side in the stacking direction; and the second heat exchanger plate comprises: a second heat exchange plate main body; a second opening formed in the second heat exchanger plate body for forming a port; and a second annular projection surrounding the second opening, adjoining the second opening and projecting from the second heat exchanger plate body towards a second side opposite to the first side in the stacking direction.
According to an embodiment of the invention, said plate heat exchanger further comprises: communication holes formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, through which the ports communicate with the predetermined heat exchange spaces.
According to an embodiment of the invention, said first annular protrusion of said first heat exchanger plate comprises: an annular first portion extending from the first heat exchanger plate body towards 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; said second annular protrusion of said second heat exchanger plate comprises: an annular first portion extending from the second heat exchanger plate body towards the second side; and an annular second portion extending inwardly from the annular first portion of the second annular projection of the second heat exchanger plate, the second portion of the second annular projection having a surface facing a 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 at least partially contact to form a seal over at least part of the 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, a projection 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 has an annular inner overlapping portion, and a projection of the communication hole on a plane perpendicular to the stacking direction is outside the annular inner overlapping portion. According to an embodiment of the invention, at least a part of a projection of the second portion of the first annular protrusion on a plane perpendicular to the stacking direction is outside a projection of the second portion of the second annular protrusion on a plane perpendicular to the stacking direction.
According to an embodiment of the invention, the first heat exchanger plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchanger plate having a surface facing the second side, the second heat exchanger plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchanger plate having a surface facing the first side, and the surfaces of the annular portions of the first heat exchanger plate and the annular portions of the second heat exchanger plate adjacent to each other are at least partially in contact to form a seal.
According to an embodiment of the present invention, a projection of the annular portion of the first heat exchanger plate and the annular portion of the second heat exchanger plate on a plane perpendicular to the stacking direction has an annular outer overlapping portion, and a projection of the communication hole on a plane perpendicular to the stacking direction is inside the annular outer overlapping portion.
According to an embodiment of the invention, at least a part of a projection of the ring-shaped portion of the second heat exchanger plate onto a plane perpendicular to the stacking direction is inside a projection of the ring-shaped portion of the first heat exchanger plate onto a plane perpendicular to the stacking direction.
According to an embodiment of the invention said communication holes are in an annular second portion of said first annular protrusion of at least some of said first heat exchanger plates and/or in an annular portion of at least some of said second heat exchanger plates.
According to an embodiment of the invention, the first annular protrusion of the first heat exchanger plate has an annular shape, the second annular protrusion of the second heat exchanger plate has an annular shape, and the outer diameter of the first annular protrusion of the first heat exchanger plate is larger than the outer diameter of the second annular protrusion of the second heat exchanger plate.
According to an embodiment of the invention, the ring-shaped portion of the first heat exchanger plate has a circular ring-like shape, the ring-shaped portion of the second heat exchanger plate has a circular ring-like shape, and the inner diameter of the ring-shaped portion of the second heat exchanger plate is smaller than the inner diameter of the ring-shaped portion of the first heat exchanger plate.
According to an embodiment of the invention, the annular portion of the first heat exchanger plate abuts the first portion of the first annular protrusion of the first heat exchanger plate and the annular portion of the second heat exchanger plate abuts the first portion of the second annular protrusion of the second heat exchanger plate.
According to an embodiment of the present invention, the first annular protrusion of the first heat exchange plate includes an annular protrusion main body and a communication protrusion extending outward from the annular protrusion main body, and at least a part of a projection of the communication protrusion of the first annular protrusion on a plane perpendicular to the stacking direction is outside a projection of the second part of the second annular protrusion on a plane perpendicular to the stacking direction, and a projection of the communication hole on a plane perpendicular to the stacking direction is in the at least a part of a projection of the communication protrusion of the first annular protrusion.
According to an embodiment of the present invention, the annular projection main body of the first annular projection of the first heat exchange plate has an annular shape, the second annular projection of the second heat exchange plate has an annular shape, and the outer diameter of the annular projection main body of the first annular projection of the first heat exchange plate is substantially equal to the outer diameter of the second annular projection of the second heat exchange plate, and a projection of the communication projection of the first annular projection on a plane perpendicular to the stacking direction is outside a projection of the second portion of the second annular projection on a plane perpendicular to the stacking direction, and a projection of the communication hole on a plane perpendicular to the stacking direction is in a projection of the communication projection of the first annular projection.
According to an embodiment of the present invention, the communication hole is a plurality of communication holes, and the communication protrusion is a plurality of spaced apart communication protrusions.
According to an embodiment of the invention, a surface of the second annular protrusion of the second heat exchanger plate facing the second side has a second recess forming a communication hole.
According to an embodiment of the invention, the first annular protrusions of the first heat exchanger plate have the shape of a circular ring, the second protrusions of the second heat exchanger plate have the shape of a circular ring, and the outer diameter of the first annular protrusions of the first heat exchanger plate is substantially equal to the outer diameter of the second annular protrusions of the second heat exchanger plate.
According to an embodiment of the invention, a first annular portion of the first annular projection of the first heat exchanger plate extends obliquely from the first heat exchanger plate body towards the first side, and a second annular portion of the first annular projection of the first heat exchanger plate extends inwardly from the first annular portion of the first annular projection of the first heat exchanger plate substantially parallel to the first heat exchanger plate body; and a ring-shaped first portion of said second annular protrusions of said second heat exchanger plates extends obliquely from the second heat exchanger plate body towards the second side, and a ring-shaped second portion of said second annular protrusions of said second heat exchanger plates extends inwardly from the ring-shaped first portion of said second annular protrusions of said second heat exchanger plates substantially parallel to the second heat exchanger plate body.
According to an embodiment of the invention, the second annular portion of the first annular protrusion of the first heat exchanger plate adjoins the first opening and the second annular portion of the second annular protrusion of the second heat exchanger 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 invention, the communication holes are formed in the first heat exchanger plate and/or the second heat exchanger plate.
The plate heat exchanger according to an embodiment of the invention may, for example, simplify the manufacturing process of the plate heat exchanger.
Drawings
Fig. 1 is a schematic top view of a port portion of a first heat exchanger 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 exchanger plate of a plate heat exchanger according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a port portion of a plate heat exchanger according to an embodiment of the present invention;
FIG. 4 is a schematic perspective cross-sectional view of a port portion of a plate heat exchanger according to an embodiment of the present invention;
fig. 5 is a schematic top view of a port portion of a first heat exchanger 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 exchanger plate of a plate heat exchanger according to another embodiment of the present invention;
fig. 7 is a schematic perspective view of a port portion of a plate heat exchanger according to another embodiment of the invention;
fig. 8 is a schematic perspective cross-sectional view of a port portion of a plate heat exchanger according to another embodiment of the present invention;
fig. 9 is a schematic top view of a port portion of a first heat exchanger 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 exchanger plate of a plate heat exchanger according to yet another embodiment of the invention;
fig. 11 is a schematic perspective view of a port portion of a plate heat exchanger according to yet another embodiment of the present invention;
fig. 12 is a schematic perspective cross-sectional view of a port portion of a plate heat exchanger according to 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 invention;
fig. 14 is a schematic cross-sectional view of a port portion of a plate heat exchanger according to an embodiment of the present invention;
FIG. 15 is a schematic enlarged cross-sectional view of a 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 invention; and
fig. 17 is a schematic cross-sectional view of a port portion of a plate heat exchanger according to another embodiment of the invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
Referring to fig. 1 to 17, a plate heat exchanger 100 according to an embodiment of the present invention includes: a plurality of heat exchanger plates 1, 2, 3, 4 (fig. 17) form ports 93 in the heat exchanger plates 1, 2, 3, 4. The plurality of heat exchanger plates 1, 2, 3, 4 are arranged in a stacking direction to form a plurality of heat exchange spaces A, B, C (fig. 17), the plurality of heat exchanger plates 1, 2, 3, 4 comprising a plurality of first heat exchanger plates 1 and a plurality of second heat exchanger plates 2; and the port 93 communicates with a predetermined heat exchange space a among the plurality of heat exchange spaces A, B, C to distribute the heat exchange medium to the predetermined heat exchange space a. In the embodiment shown in fig. 1 to 15, a plurality of first heat exchanger plates 1 and a plurality of second heat exchanger plates 2 are alternately arranged in a stacking direction to form first heat exchange spaces a and second heat exchange spaces B which are alternately arranged. In the embodiment shown in fig. 16 and 17, the plurality of heat exchanger plates 1, 2, 3, 4 comprises a plurality of first heat exchanger plates 1, a plurality of second heat exchanger plates 2, a plurality of third heat exchanger plates 3 and a plurality of fourth heat exchanger plates 4, and the first heat exchanger plates 1, the second heat exchanger plates 2, the third heat exchanger plates 3 and the fourth heat exchanger plates 4 constitute a repeating unit. The plate heat exchanger 100 comprises a plurality of repeating units. The plurality of heat exchange spaces A, B, C includes 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 exchanger plate 1 comprises: a first heat exchange plate body 10; a first opening 11 formed in the first heat exchanger plate body 10 for forming a port 93; and a first annular protrusion 12 surrounding the first opening 11, adjoining the first opening 11 and projecting from the first heat exchanger plate body 10 towards the first side in the stacking direction. The second heat exchanger plate 2 comprises: a second heat exchange plate main body 20; a second opening 21 formed in the second heat exchanger plate body 20 for forming a port 93; and a second annular projection 22 surrounding the second opening 21, adjoining the second opening 21 and projecting from the second heat exchanger plate body 20 towards a second side opposite to the first side in the stacking direction. The sum of the heights of the first annular protrusion 12 and the second annular protrusion 22 is equal to the height of the heat exchanging space, e.g. the height of the first annular protrusion 12 and the second annular protrusion 22 is equal to half the height of the heat exchanging space.
In some embodiments of the invention, referring to fig. 13, 14, the plate heat exchanger 100 comprises a first heat exchange medium outlet 93A, a second heat exchange medium inlet 93B, a second heat exchange medium outlet 93C in addition to the port 93 being the first heat exchange medium inlet port.
In other embodiments of the present invention, referring to fig. 16 and 17, the plate heat exchanger 100 comprises a first heat exchange medium outlet 93A, a second heat exchange medium inlet 93B, a second heat exchange medium outlet 93C, a third heat exchange medium inlet 93D, and a third heat exchange medium outlet 93E in addition to the port 93 as the first heat exchange medium inlet port. The plurality of heat exchange plates 1, 2, 3, 4 include 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 plates 1, the second heat exchange plates 2, the third heat exchange plates 3, and the fourth heat exchange plates 4 constitute a repeating unit. The plate heat exchanger 100 may form three circuits. The first heat exchange space a, the second heat exchange space B and the third heat exchange space C are separated from each other. The first heat exchange medium may be a refrigerant, the second heat exchange medium may be water, and the third heat exchange medium may be a refrigerant. The first and third heat exchanger plates 1, 3 may be identical in the port portion, with the difference that one has communication holes 95 and the other does not have communication holes 95, and the second and fourth heat exchanger plates 2, 4 may be identical in the port portion. If the communication holes 95 are formed in one of the second heat exchanger plate 2 and the fourth heat exchanger plate 4, the first heat exchanger plate 1 and the third heat exchanger plate 3 may be identical in the port portions. The first heat exchanger plate 1 and the third heat exchanger plate 3 may be the same or different in the heat exchanging part, and the second heat exchanger plate 2 and the fourth heat exchanger plate 4 may be the same or different in the heat exchanging part. The third heat exchanger plate 3 may be considered as the first heat exchanger plate 1, but has the same or different heat exchanging portion as that of the first heat exchanger plate 1, and may or may not have the communication holes 95, regardless of whether the first heat exchanger plate 1 has or does not have the communication holes 95. The fourth heat exchanger plate 4 may be considered as the second heat exchanger plate 2, but has the same or a different heat exchanging portion as the heat exchanging portion of the second heat exchanger plate 2, and may or may not have the communication holes 95, irrespective of whether the second heat exchanger plate 2 has or does not have the communication holes 95. The port section comprises the ring sections 14, 24 and the sections inside the ring sections 14, 24, while the heat exchanging section is the section where the heat exchanging space is located, located outside the ring sections 14, 24.
In some embodiments of the present invention, referring to fig. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15, 17, said first annular protrusion 12 of said first heat exchanger plate 1 comprises: an annular first portion 1201 extending from the first heat exchanger plate body 10 towards 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 projection 12 having a first side facing surface 1203. Said second annular protrusions 22 of said second heat exchanger plate 2 comprise: an annular first portion 2201 extending from the second heat exchanger plate body 20 towards the second side; and an annular second portion 2202 extending inwardly from said annular first portion 2201 of said second annular projection 22 of said second heat exchanger plate 2, said second portion 2202 of said second annular projection 22 having a surface 2203 facing a second side. The surface 1203 of the second portion 1202 of the first annular projection 12 adjacent to each other is at least partially in contact with the surface 2203 of the second portion 2202 of the second annular projection 22 to form a seal over at least part of the circumferential length of the surface 1203 of the second portion 1202 of the first annular projection 12 and the surface 2203 of the second portion 2202 of the second annular projection 22, whereby the heat exchange medium from the port 93 does not flow into the predetermined heat exchange space a between the entirety of the surface 1203 of the second portion 1202 of the first annular projection 12 and the surface 2203 of the second portion 2202 of the second annular projection 22, but flows into the predetermined heat exchange space a only through the communication hole 95.
Referring to fig. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15, 17, according to an example of the present invention, a ring-shaped first portion 1201 of said first annular protrusion 12 of said first heat exchanger plate 1 extends obliquely from the first heat exchanger plate body 10 towards the first side, and a ring-shaped second portion 1202 of said first annular protrusion 12 of said first heat exchanger plate 1 extends inwardly from said ring-shaped first portion 1201 of said first annular protrusion 12 of said first heat exchanger plate 1 substantially parallel to the first heat exchanger plate body 10. The annular first portion 2201 of said second annular protrusions 22 of said second heat exchanger plate 2 extends obliquely from the second heat exchanger plate body 20 towards the second side, and the annular second portion 2202 of said second annular protrusions 22 of said second heat exchanger plate 2 extends inwardly from said annular first portion 2201 of said second annular protrusions 22 of said second heat exchanger plate 2 substantially parallel to the second heat exchanger plate body 20. For example, the annular second portion 1202 of the first annular protrusion 12 of the first heat exchanger plate 1 adjoins the first opening 11, and the annular second portion 2022 of the second annular protrusion 22 of the second heat exchanger plate 2 adjoins the second opening 21.
In some embodiments of the invention, referring to fig. 1, 3, 4, 5, 7, 8, 11, 12, 14, 15, 17, said first heat exchanger plate 1 further comprises an annular portion 14 surrounding said first annular protrusion 12, said annular portion 14 of said first heat exchanger plate 1 having a surface 15 facing the second side, said second heat exchanger plate 2 further comprises an annular portion 24 surrounding said second annular protrusion 22, said annular portion 24 of said second heat exchanger plate 2 having a surface 25 facing the first side, and the surfaces 15 of the annular portions 14 of said first heat exchanger plate 1 and the surfaces 25 of the annular portions 24 of said second heat exchanger plate 2 adjacent to each other are at least partially in contact to form a seal. Thereby, the heat exchange medium from the port 93 does not flow into the other heat exchange space B, C except the predetermined heat exchange space a.
In some embodiments of the invention, referring to fig. 1, 3, 4, 5, 7, 8, 11, 12, 15, 17, the plate heat exchanger further comprises: communication holes 95 formed in at least some of the first heat exchanger plates 1 and/or at least some of the second heat exchanger plates 2, through which communication holes 95 the ports 93 communicate with the predetermined heat exchange space a. The communication hole 95 may have any suitable shape, such as a circular shape, a semicircular shape, an elliptical shape, a quadrangular shape, and the like.
In some embodiments of the present invention, referring to fig. 4, 8, 14, 15, 17, a projection 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 has an annular inner overlapping portion (e.g., an overlapping portion on the radially inner side), and a projection of the communication hole 95 on a plane perpendicular to the stacking direction is on the outer side (e.g., the radially outer side) of the annular inner overlapping portion. For example, at least a part of a projection of the second portion 1202 of the first annular projection 12 on a plane perpendicular to the stacking direction is outside (e.g., radially outside) a projection of the second portion 2202 of the second annular projection 22 on a plane perpendicular to the stacking direction.
In some embodiments of the invention, referring to fig. 4, 8, 14, 16, the projection of the annular portion 14 of the first heat exchanger plate 1 and the annular portion 24 of the second heat exchanger plate 2 on a plane perpendicular to the stacking direction has an annular outer overlapping portion (e.g., a radially outer overlapping portion), and the projection of the communication hole 95 on a plane perpendicular to the stacking direction is on the inner side (e.g., a radially inner side) of the annular outer overlapping portion. For example, at least a part of the projection of the ring-shaped portion 24 of the second heat exchanger plate 2 onto a plane perpendicular to the stacking direction is inside (e.g. radially inside) the projection of the ring-shaped portion 14 of the first heat exchanger plate 1 onto a plane perpendicular to the stacking direction. For example, the ring-shaped portion 14 of the first heat exchanger plate 1 has a circular ring-shaped shape, the ring-shaped portion 24 of the second heat exchanger plate 2 has a circular ring-shaped shape, and the inner diameter of the ring-shaped portion 24 of the second heat exchanger plate 2 is smaller than the inner diameter of the ring-shaped portion 14 of the first heat exchanger plate 1. The annular portion 14 of the first heat exchanger plate 1 may abut the first portion 1201 of the first annular projection 12 of the first heat exchanger plate 1 and the annular portion 24 of the second heat exchanger plate 2 may abut the first portion 2201 of the second annular projection 22 of the second heat exchanger plate 2.
In some embodiments of the invention, see fig. 4, 8, 14, 15, 17, said communication holes 95 are in the annular second portion 1202 of said first annular protrusion 12 of at least some of said first heat exchanger plates 1 and/or said communication holes 95 are in the annular portion 24 of at least some of said second heat exchanger plates 2. Therefore, the communicating hole 95 is convenient to process, high in precision and not easy to block. For example, in the embodiment shown in fig. 14, the communication holes 95 are formed in the first heat exchanger plate 1 and/or the second heat exchanger plate 2.
In some embodiments of the invention, see fig. 4, 8, 14, 15, 17, said communication hole 95 is in an annular first portion 1201 of said first annular protrusion 12 of at least some of said first heat exchanger plates 1 and/or said communication hole 95 is in an annular first portion 2201 of at least some of said second heat exchanger plates 2. Thus, the first annular protrusion 12 and the second annular protrusion 22 may be identical in shape and size.
Although it is shown in fig. 1, 3, 4, 5, 7, 8 that the communication hole 95 is formed in the first heat exchange plate 1, the communication hole 95 may be formed in the second heat exchange plate 2, or the communication hole 95 may be formed in each of the first and second heat exchange plates 1 and 2. Furthermore, although fig. 1, 3, 4, 5, 7, 8 show one communication hole 95 formed in the first heat exchange plate 1, it is also possible that a plurality of communication holes 95 are formed in the first heat exchange plate 1, a plurality of communication holes 95 are formed in the second heat exchange plate 2, or a plurality of communication holes 95 are formed in each of the first and second heat exchange plates 1 and 2.
In some embodiments of the invention, referring to fig. 8, the first annular protrusions 12 of the first heat exchanger plate 1 have an annular shape, the second annular protrusions 22 of the second heat exchanger plate 2 have an annular shape, and the outer diameter of the first annular protrusions 12 of the first heat exchanger plate 1 is larger than the outer diameter of the second annular protrusions 22 of the second heat exchanger plate 2. The first annular protrusions 12 of the first heat exchanger plate 1 and the second annular protrusions 22 of the second heat exchanger plate 2 may be substantially concentric, seen in the stacking direction.
In some embodiments of the present invention, referring to fig. 4, the first annular projection 12 of the first heat exchange plate 1 includes an annular projection main body 120 and a communication projection 121 extending outward (e.g., radially outward, toward a direction away from the center of the annular projection main body 120) from the annular projection main body 120, and at least a part of a projection of the communication projection 121 of the first annular projection 12 on a plane perpendicular to the stacking direction is outside (e.g., radially outward) a projection of the second portion 2202 of the second annular projection 22 on a plane perpendicular to the stacking direction, and a projection of the communication hole 95 on a plane perpendicular to the stacking direction is in the at least a part of a projection of the communication projection 121 of the first annular projection 12. Although it is shown in fig. 1, 3 and 4 that the communication hole 95 is formed in the communication protrusion 121 of the first heat exchange plate 1, the communication hole 95 may be formed in the second heat exchange plate 2, or the communication hole 95 may be formed in each of the communication protrusion 121 of the first heat exchange plate 1 and the second heat exchange plate 2. Furthermore, although it is shown in fig. 1, 3 and 4 that one communication hole 95 is formed in the communication protrusion 121 of the first heat exchanger plate 1, a plurality of communication holes 121 may be provided, whereby a plurality of communication holes 95 are respectively formed in the plurality of communication protrusions 121 of the first heat exchanger plate 1, or a plurality of communication holes 95 are formed in the second heat exchanger plate 2, or a plurality of communication holes 95 are formed in each of the plurality of communication protrusions 121 of the first heat exchanger plate 1 and the second heat exchanger plate 2.
In some embodiments of the present invention, referring to fig. 1 to 4, the annular protrusion main body 120 of the first annular protrusion 12 of the first heat exchange plate 1 has an annular shape, the second annular protrusion 22 of the second heat exchange plate 2 has an annular shape, and the 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 the outer diameter of the second annular protrusion 22 of the second heat exchange plate 2, and a projection of the communication protrusion 121 of the first annular protrusion 12 on a plane perpendicular to the stacking direction is outside (for example, radially outside) a projection of the second portion 2202 of the second annular protrusion 22 on a plane perpendicular to the stacking direction, and a projection of the communication hole 95 on a plane perpendicular to the stacking direction is in a projection of the communication protrusion 121 of the first annular protrusion 12.
In some embodiments of the present invention, referring to fig. 1 to 4, the communication hole 95 is a plurality of communication holes 95, and the communication protrusion 121 is a plurality of spaced apart communication protrusions 121.
In some embodiments of the invention, referring to fig. 11, 12, the surface 2203 of the second annular protrusion 22 of the second heat exchanger plate 2 facing the second side has a recess 2206 forming a communication hole 95. Therefore, only the concave part is required to be processed on one side of the second heat exchange plate 2, and the processing is convenient and the precision is high. Alternatively, the surface 1203 of the first annular projection 12 of the first heat exchanger plate 1 facing the first side may have a recess forming the communication hole 95, or the surface 1203 of the first annular projection 12 of the first heat exchanger plate 1 facing the first side may have a recess, the surface 2203 of the second annular projection 22 of the second heat exchanger plate 2 facing the second side may have a recess 2206, and the recess of the surface 1203 of the first annular projection 12 of the first heat exchanger plate 1 facing the first side and the recess 2206 of the surface 2203 of the second annular projection 22 of the second heat exchanger plate 2 facing the second side may be aligned in the stacking direction to form the communication hole 95 or misaligned to form the communication hole 95, respectively. According to an example of the present invention, a holed insert may be placed in the recess to ensure the accuracy of the communication hole. For example, the first annular protrusions 12 of the first heat exchanger plate 1 have the shape of a circular ring, the second protrusions of the second heat exchanger plate 2 have the shape of a circular ring, and the outer diameter of the first annular protrusions 12 of the first heat exchanger plate 1 is substantially equal to the outer diameter of the second annular protrusions 22 of the second heat exchanger plate 2.
The concept according to embodiments of the invention can be applied to any plate heat exchanger and is not limited to the heat exchanger shown in the figures. I.e. the port portions of the heat exchanger plates of the plate heat exchanger according to an embodiment of the invention may be applied to any plate heat exchanger.
The plate heat exchanger according to an embodiment of the invention may, for example, simplify the manufacturing process of the plate heat exchanger. The plate heat exchanger may dispense with a separate distributor. In addition, the plate heat exchanger according to the embodiment of the invention can reduce the cost.
According to the plate heat exchanger of the embodiment of the invention, the distributor is integrally formed on the heat exchange plate through stamping.
It is noted that features from one or more of the embodiments described above may be combined into new embodiments. Features from one embodiment may be used with another embodiment unless the feature in one embodiment conflicts with the technical solution of the other embodiment.
Claims (21)
1. A plate heat exchanger comprising:
a plurality of heat exchange plates arranged in a stacking direction to form a plurality of heat exchange spaces, the plurality of heat exchange plates including a plurality of first heat exchange plates and a plurality of second heat exchange plates; and
a port formed in the heat exchange plate, the port being in communication 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 exchanger plate body for forming a port; and a first annular projection surrounding the first opening, adjoining the first opening and projecting from the first heat exchanger plate body towards the first side in the stacking direction; and
the second heat exchange plate includes: a second heat exchange plate main body; a second opening formed in the second heat exchanger plate body for forming a port; and a second annular projection surrounding the second opening, adjoining the second opening and projecting from the second heat exchanger plate body towards a second side opposite to the first side in the stacking direction.
2. The plate heat exchanger of claim 1 further comprising:
communication holes formed in at least some of the first heat exchange plates and/or at least some of the second heat exchange plates, through which the ports communicate with the predetermined heat exchange spaces.
3. The plate heat exchanger of claim 2 wherein:
the first annular protrusion of the first heat exchanger plate comprises: an annular first portion extending from the first heat exchanger plate body towards 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;
said second annular protrusion of said second heat exchanger plate comprises: an annular first portion extending from the second heat exchanger plate body towards the second side; and an annular second portion extending inwardly from the annular first portion of the second annular projection of the second heat exchanger plate, the second portion of the second annular projection having a surface facing a second side; and
a surface of the second portion of the first annular protrusion at least partially contacts a surface of the second portion of the second annular protrusion adjacent to each other to form a seal over at least a portion 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. A plate heat exchanger according to claim 3 wherein:
a projection of the second portion of the first annular projection and the second portion of the second annular projection on a plane perpendicular to the stacking direction has an annular inner overlapping portion, an
The communication hole is projected on a plane perpendicular to the stacking direction outside the annular inner overlapping portion.
5. The plate heat exchanger of claim 4 wherein:
at least a part of a projection of the second portion of the first annular projection on a plane perpendicular to the stacking direction is outside a projection of the second portion of the second annular projection on a plane perpendicular to the stacking direction.
6. The plate heat exchanger of claim 4 wherein:
the first heat exchanger plate further comprises an annular portion surrounding the first annular protrusion, the annular portion of the first heat exchanger plate having a surface facing the second side, the second heat exchanger plate further comprises an annular portion surrounding the second annular protrusion, the annular portion of the second heat exchanger plate having a surface facing the first side, and the surfaces of the annular portions of the first heat exchanger plate and the annular portions of the second heat exchanger plate adjacent to each other are at least partially in contact to form a seal.
7. The plate heat exchanger of claim 6 wherein:
a projection of the annular portion of the first heat exchanger plate and the annular portion of the second heat exchanger plate onto a plane perpendicular to the stacking direction has an annular outer overlapping portion, an
The communication hole is projected on a plane perpendicular to the stacking direction inside the annular outer overlapping portion.
8. The plate heat exchanger of claim 6 wherein:
at least a part of a projection of the annular portion of the second heat exchanger plate onto a plane perpendicular to the stacking direction is inside a projection of the annular portion of the first heat exchanger plate onto a plane perpendicular to the stacking direction.
9. The plate heat exchanger of claim 6 wherein:
said communication holes are in the annular second portion of said first annular protrusion of at least some of said first heat exchanger plates and/or in the annular portion of at least some of said second heat exchanger plates.
10. The plate heat exchanger of claim 3 or 4 wherein:
the first annular protrusion of the first heat exchange plate has a circular ring shape, the second annular protrusion of the second heat exchange plate has a circular ring shape, and the outer diameter of the first annular protrusion of the first heat exchange plate is larger than that of the second annular protrusion of the second heat exchange plate.
11. The plate heat exchanger of claim 6 or 7 wherein:
the annular part of the first heat exchange plate is in a circular ring shape, the annular part of the second heat exchange plate is in a circular ring shape, and the inner diameter of the annular part of the second heat exchange plate is smaller than that of the annular part of the first heat exchange plate.
12. The plate heat exchanger of claim 11 wherein:
the annular portion of the first heat exchanger plate abuts the first portion of the first annular projection of the first heat exchanger plate and the annular portion of the second heat exchanger plate abuts the first portion of the second annular projection of the second heat exchanger plate.
13. The plate heat exchanger of claim 4 wherein:
the first annular protrusion of the first heat exchanger plate comprises an annular protrusion body and a communication protrusion extending outwardly from the annular protrusion body, and
at least a part of a projection of the communication projection of the first annular projection on a plane perpendicular to the stacking direction is outside a projection of the second part of the second annular projection on a plane perpendicular to the stacking direction, and a projection of the communication hole on a plane perpendicular to the stacking direction is in the at least a part of a projection of the communication projection of the first annular projection.
14. The plate heat exchanger of claim 13 wherein:
the annular projection body of the first annular projection of the first heat exchanger plate has a ring-like shape, the second annular projection of the second heat exchanger plate has a ring-like shape, and the outer diameter of the annular projection body of the first annular projection of the first heat exchanger plate is substantially equal to the outer diameter of the second annular projection of the second heat exchanger plate, and
a projection of the communication projection of the first annular projection on a plane perpendicular to the stacking direction is outside a projection of the second portion of the second annular projection on a plane perpendicular to the stacking direction, and a projection of the communication hole on a plane perpendicular to the stacking direction is in the projection of the communication projection of the first annular projection.
15. The plate heat exchanger of claim 13 or 14 wherein:
the communication hole is a plurality of communication holes, and the communication protrusion is a plurality of spaced apart communication protrusions.
16. The plate heat exchanger of claim 2 wherein:
the surface of the second annular projection of the second heat exchanger plate facing the second side has a second recess forming a communication hole.
17. The plate heat exchanger of claim 16 wherein:
the first annular projection of the first heat exchanger plate has a circular ring shape, the second projection of the second heat exchanger plate has a circular ring shape, and the outer diameter of the first annular projection of the first heat exchanger plate is substantially equal to the outer diameter of the second annular projection of the second heat exchanger plate.
18. The plate heat exchanger of claim 1 wherein:
a first annular portion of said first annular projection of said first heat exchanger plate extends obliquely from the first heat exchanger plate body towards the first side, and a second annular portion of said first annular projection of said first heat exchanger plate extends inwardly from said first annular portion of said first annular projection of said first heat exchanger plate substantially parallel to the first heat exchanger plate body; and
a first annular portion of said second annular protrusions of said second heat exchanger plates extends obliquely from the second heat exchanger plate body towards the second side, and a second annular portion of said second annular protrusions of said second heat exchanger plates extends inwardly from said first annular portion of said second annular protrusions of said second heat exchanger plates substantially parallel to the second heat exchanger plate body.
19. The plate heat exchanger of claim 18 wherein:
the second annular portion of the first annular protrusion of the first heat exchanger plate adjoins the first opening and the second annular portion of the second annular protrusion of the second heat exchanger plate adjoins the second opening.
20. The plate heat exchanger of 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.
21. The plate heat exchanger of claim 2 wherein:
the communication holes are formed in the first heat exchanger plate and/or the second heat exchanger plate.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073885.3A CN113154910A (en) | 2020-01-22 | 2020-01-22 | Plate heat exchanger |
| PCT/CN2020/128673 WO2021147479A1 (en) | 2020-01-22 | 2020-11-13 | Plate heat exchanger |
| US17/793,961 US20230062508A1 (en) | 2020-01-22 | 2020-11-13 | Plate heat exchanger |
| EP20915546.4A EP4095478A4 (en) | 2020-01-22 | 2020-11-13 | Plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073885.3A CN113154910A (en) | 2020-01-22 | 2020-01-22 | Plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154910A true CN113154910A (en) | 2021-07-23 |
Family
ID=76881758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010073885.3A Pending CN113154910A (en) | 2020-01-22 | 2020-01-22 | Plate heat exchanger |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230062508A1 (en) |
| EP (1) | EP4095478A4 (en) |
| CN (1) | CN113154910A (en) |
| WO (1) | WO2021147479A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220187031A1 (en) * | 2020-12-10 | 2022-06-16 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Distributor for plate heat exchanger and plate heat exchanger |
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- 2020-01-22 CN CN202010073885.3A patent/CN113154910A/en active Pending
- 2020-11-13 EP EP20915546.4A patent/EP4095478A4/en active Pending
- 2020-11-13 WO PCT/CN2020/128673 patent/WO2021147479A1/en unknown
- 2020-11-13 US US17/793,961 patent/US20230062508A1/en active Pending
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| CN101261093A (en) * | 2008-04-22 | 2008-09-10 | 江苏宝得换热设备有限公司 | Three-way plate heat exchanger |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4095478A1 (en) | 2022-11-30 |
| EP4095478A4 (en) | 2024-02-14 |
| US20230062508A1 (en) | 2023-03-02 |
| WO2021147479A1 (en) | 2021-07-29 |
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