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CN112747613A - Heat exchange plate for plate heat exchanger and plate heat exchanger - Google Patents

Heat exchange plate for plate heat exchanger and plate heat exchanger Download PDF

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Publication number
CN112747613A
CN112747613A CN201911189175.0A CN201911189175A CN112747613A CN 112747613 A CN112747613 A CN 112747613A CN 201911189175 A CN201911189175 A CN 201911189175A CN 112747613 A CN112747613 A CN 112747613A
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CN
China
Prior art keywords
heat exchanger
plate
annular
port
portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911189175.0A
Other languages
Chinese (zh)
Other versions
CN112747613B (en
Inventor
张志锋
罗俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss AS filed Critical Danfoss AS
Priority to MX2022005030A priority Critical patent/MX2022005030A/en
Priority to EP20880738.8A priority patent/EP4053488A4/en
Priority to US17/773,118 priority patent/US20230147560A1/en
Priority to PCT/CN2020/124321 priority patent/WO2021083189A1/en
Publication of CN112747613A publication Critical patent/CN112747613A/en
Application granted granted Critical
Publication of CN112747613B publication Critical patent/CN112747613B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0282—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The embodiment of the invention discloses a heat exchange plate for a plate heat exchanger and the plate heat exchanger with the heat exchange plate. This heat transfer plate includes: the heat exchanger includes a heat exchange portion through which fluids of different temperatures exchange heat with each other, and a port portion in which an opening for serving as a port of the heat exchanger is formed. The heat exchanger plate has a first side and a second side in a direction perpendicular to the heat exchanger plate, and the port portion has a contact portion at the first side for contacting a port portion of another heat exchanger plate, and a protrusion protruding towards the second side with respect to the contact portion. The heat exchanger plate and the plate heat exchanger according to embodiments of the invention may, for example, improve the quality of the port portions of the heat exchanger plates of the heat exchanger.

Description

Heat exchange plate for plate heat exchanger and plate heat exchanger
Technical Field
Embodiments of the present invention relate to a heat exchanger plate for a plate heat exchanger and a plate heat exchanger.
Background
The plate heat exchanger comprises a cover plate, a heat exchange plate, a connecting pipe and the like.
Disclosure of Invention
It is an object of embodiments of the present invention to provide a heat exchanger plate for a plate heat exchanger and a plate heat exchanger having the same, whereby the quality of, for example, the port portions of the heat exchanger plate of the heat exchanger may be improved.
According to an embodiment of the invention, there is provided a heat exchanger plate for a plate heat exchanger, comprising: a heat exchange portion through which fluids of different temperatures exchange heat with each other, and a port portion in which an opening is formed for acting as a port of the heat exchanger, wherein the heat exchange plate has a first side and a second side in a direction perpendicular to the heat exchange plate, the port portion having a contact portion at the first side in contact with the port portion of another heat exchange plate, and a projection projecting toward the second side with respect to the contact portion.
According to an embodiment of the invention, the port portion comprises a plurality of protrusions distributed in a circumferential direction around the opening.
According to an embodiment of the invention, the plurality of protrusions has a circular, rectangular or trapezoidal shape, seen in a direction perpendicular to the heat exchanger plate.
According to an embodiment of the present invention, the port portion includes an annular contact portion and an annular projection surrounding the opening, the annular contact portion and the annular projection being contiguous.
According to an embodiment of the present invention, the port portion includes at least two annular projections surrounding the opening, two of the at least two annular projections being adjacent and having different amounts of projection with respect to the contact portion; or two of the at least two annular projections are separated by an annular contact portion.
According to an embodiment of the present invention, the port part includes: a first annular portion surrounding the opening, an inner edge of the first annular portion constituting an edge of the opening; and a second annular portion surrounding and contiguous with the first annular portion, at least a portion of one of the first and second annular portions constituting the projection.
According to an embodiment of the present invention, a plurality of portions of at least one of the first annular portion and the second annular portion spaced apart in the circumferential direction constitute a plurality of projections; or one of the first and second annular portions constitutes an annular projection; or one of the first annular portion and the second annular portion constitutes an annular projection, and a plurality of portions of the other of the first annular portion and the second annular portion spaced apart in the circumferential direction constitute a plurality of projections.
According to an embodiment of the present invention, the port part includes: a first annular portion surrounding the opening, an inner edge of the first annular portion constituting an edge of the opening; a second annular portion surrounding and contiguous with the first annular portion; and a third annular portion surrounding and contiguous with the second annular portion, at least a portion of at least one of the first, second, and third annular portions constituting a protrusion.
According to an embodiment of the present invention, the second annular portion and the third annular portion protrude toward the second side with respect to the part of the surface of the port portion to constitute a projection, at least a part of the first annular portion constitutes a contact portion, and an amount of protrusion of the second annular portion with respect to the contact portion is smaller than an amount of protrusion of the third annular portion.
According to an embodiment of the present invention, one of the first annular portion, the second annular portion, and the third annular portion constitutes an annular projection, and a plurality of portions of another one of the first annular portion, the second annular portion, and the third annular portion, which are spaced apart in the circumferential direction, constitutes a plurality of projections.
According to an embodiment of the present invention, the port part includes: a plurality of ring portions surrounding the opening, an inner edge of an innermost ring portion constituting an edge of the opening, and adjacent two of the plurality of ring portions abutting each other, at least a part of at least one of the plurality of ring portions constituting the projection.
According to an embodiment of the present invention, at least one of the plurality of ring-shaped portions protrudes toward the second side with respect to the portion of the surface of the port portion to constitute an annular projection; or a plurality of portions of at least one of the plurality of ring-shaped portions spaced apart in the circumferential direction protrude toward the second side with respect to the one portion of the surface of the port portion to constitute a plurality of projections.
There is also provided, in accordance with an embodiment of the present invention, a plate heat exchanger, including: a plurality of heat exchange plates, the plurality of heat exchange plates are the heat exchange plates.
According to an embodiment of the invention, the bosses of two adjacent heat exchanger plates sealingly connected to each other at the port portions project in a direction away from each other, a gap between the two bosses being in the range of 0.2-0.3 mm.
According to an embodiment of the invention, the bosses of two adjacent heat exchanger plates, which are sealingly connected to each other at the port portions, protrude in a direction away from each other, a gap between the two bosses being in the range of 0.2-0.3 mm, and the gap between the two bosses being filled with solder for soldering the plate heat exchanger to solder the two bosses together.
The heat exchanger plate and the plate heat exchanger according to embodiments of the invention may, for example, improve the quality of the port portions of the heat exchanger plates of the heat exchanger.
Drawings
Fig. 1 is a schematic perspective view of a plate heat exchanger according to an embodiment of the invention;
fig. 2 is a schematic partial top view of a plate heat exchanger according to an embodiment of the invention;
fig. 3 is a schematic partial cross-sectional view of a plate heat exchanger according to an embodiment of the invention along line AA in fig. 2;
fig. 4 is a schematic partial cross-sectional view along line AA in fig. 2 of a heat exchanger plate of a plate heat exchanger according to a first embodiment of the invention;
fig. 5 is a schematic partial cross-sectional view along line AA in fig. 2 of a heat exchanger plate of a plate heat exchanger according to a second embodiment of the invention;
fig. 6 is a schematic partial cross-sectional view along line AA in fig. 2 of a heat exchanger plate of a plate heat exchanger according to a third embodiment of the invention;
fig. 7 is a schematic partial top view of a heat exchanger plate of a plate heat exchanger according to a fourth embodiment of the present invention;
fig. 8A is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a fifth embodiment of the invention, taken in one plane through the axis of the port shown in fig. 2;
fig. 8B is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a fifth embodiment of the invention, taken in another plane through the axis of the port shown in fig. 2;
fig. 9A is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a sixth embodiment of the present invention, taken in one plane through the axis of the port shown in fig. 2;
fig. 9B is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a sixth embodiment of the present invention, taken in another plane through the axis of the port shown in fig. 2;
fig. 10A is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a seventh embodiment of the invention, taken in one plane through the axis of the port shown in fig. 2;
fig. 10B is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to a seventh embodiment of the invention, taken in another plane through the axis of the port shown in fig. 2;
fig. 11A is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to an eighth embodiment of the present invention, taken in one plane through the axis of the port shown in fig. 2;
fig. 11B is a schematic partial section view of a heat exchanger plate of a plate heat exchanger according to an eighth embodiment of the invention, taken in another plane through the axis of the port shown in fig. 2;
fig. 12A is a schematic partial top view of a plate heat exchanger according to a ninth embodiment of the invention; and
fig. 12B is a schematic partial cross-sectional view of a heat exchanger plate of a plate heat exchanger according to a ninth embodiment of the invention, taken along the line BB shown in fig. 12A.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1 to 3, a plate heat exchanger 100 according to an embodiment of the present invention includes: a plurality of heat exchange plates 10; a heat exchange space 20 formed between adjacent heat exchange plates 10 of said plurality of heat exchange plates 10; and ports 30 formed in the heat exchange plate 10, each of the ports 30 for distributing refrigerant to some of the heat exchange spaces 20 among the plurality of heat exchange spaces 20.
Referring to fig. 1 to 12B, a heat exchange plate 10 for a plate heat exchanger 100 according to an embodiment of the present invention comprises: a heat exchanging portion 11H and a port portion 11P; and an opening 12 formed in the port portion 11P for forming the port 30 of the heat exchanger 100. The heat exchanging part 11H is provided with a concave-convex structure so that fluids of different temperatures exchange heat with each other at both sides of the heat exchanging part 11H. The port portions 11P are substantially fitted together. Said heat exchanger plate 10 has a first side and a second side in a direction perpendicular to the heat exchanger plate 10 (e.g. an upper side and a lower side of the heat exchanger plate 10 in fig. 3, 4, 5, 6, 8A, 8B, 9A, 9B, 10A, 10B, 11A, 11B, 12B), said port portion 11P having a contact portion 16 at said first side in contact with a port portion 11P of another heat exchanger plate 10, and a protrusion 15 protruding towards said second side with respect to said contact portion 16. For example, the port portion 11P has a surface PS on the first side, a part of the surface PS of the port portion 11P being in contact with the port portion 11P of another heat exchanger plate 10.
In some embodiments of the invention, referring to fig. 7, 8A, 8B, 9A, 9B, 10A, 10B, 12A, 12B, the port portion 11P comprises a plurality of protrusions 15 distributed in a circumferential direction around the opening 12. For example, referring to fig. 7, 12A, the plurality of protrusions 15 have a circular, rectangular or trapezoidal shape when viewed in a direction perpendicular to the heat exchanger plate 10.
In some embodiments of the present invention, referring to fig. 3, 4, 5, 6, 8A, 8B, 10A, 10B, 11A, 11B, the port portion 11P includes an annular contact portion 16 surrounding the opening 12 and an annular projection 15, the annular contact portion 16 and the annular projection 15 being contiguous. For example, referring to fig. 5, the port portion 11P includes at least two annular projections 15 surrounding the opening 12, two annular projections 15 of the at least two annular projections 15 being adjacent and having different amounts of projection with respect to the contact portion 16; or two annular projections 15 of the at least two annular projections 15 are separated by an annular contact portion 16.
In some embodiments of the present invention, referring to fig. 3 to 12B, the port portion 11P includes: a first annular portion P1 surrounding said opening 12, the inner edge P10 of the first annular portion P1 constituting the edge 120 of said opening 12; and a second ring portion P2 surrounding the first ring portion P1 and adjoining the first ring portion P1, at least a portion of at least one of the first ring portion P1 and the second ring portion P2 (e.g., one of the first ring portion P1 and the second ring portion P2) protruding toward the second side to constitute a boss 15. For example, one of the first and second annular portions P1 and P2 protrudes toward the second side to constitute a projection 15.
Each of the first and second ring portions P1 and P2 has a predetermined width. And may have a circular ring shape, or other suitable shape, depending on the shape of opening 12.
In some embodiments of the present invention, referring to fig. 7, 8A, 8B, 9A, 9B, 10A, 10B, 12A, 12B, a plurality of circumferentially spaced apart portions of at least one of the first and second annular portions P1, P2 (e.g., one of the first and second annular portions P1, P2) project toward the second side to constitute a plurality of projections 15. Along the circumferential direction of the ring-shaped part around the opening 12 of the heat exchanger plate 10, a number of step-like reinforcing structures are evenly arranged, see for example fig. 7, where no protrusions 15 are provided in area a and protrusions 15 are provided in area B, which structures may be modified accordingly depending on the size of the opening, the size of the heat exchanger part.
In some embodiments of the invention, referring to fig. 3, 4, 5, 6, 8A, 8B, 10A, 10B, 11A, 11B, the first annular portion P1 projects towards the second side to constitute an annular projection 15; or the second annular portion P2 projects towards the second side to constitute an annular projection 15.
In some embodiments of the present invention, referring to fig. 7, 8A, 8B, one of the first annular portion P1 and the second annular portion P2 protrudes toward the second side to constitute a ring-shaped projection 15, and a plurality of portions of the other of the first annular portion P1 and the second annular portion P2 spaced apart in the circumferential direction protrude toward the second side to constitute a plurality of projections 15.
In some embodiments of the present invention, referring to fig. 5, 10A, 10B, 11A, 11B, 12A, 12B, the port portion 11P includes: a first annular portion P1 surrounding said opening 12, the inner edge P10 of the first annular portion P1 constituting the edge 120 of said opening 12; a second annular portion P2 surrounding said first annular portion P1 and contiguous with said first annular portion P1; and a third ring portion P3 surrounding the second ring portion P2 and adjoining the second ring portion P2, at least a portion of at least one of the first ring portion P1, the second ring portion P2, and the third ring portion P3 protruding toward the second side to constitute a projection 15.
In some embodiments of the present invention, referring to fig. 5, the second ring portion P2 and the third ring portion P3 protrude toward the second side to constitute a projection 15, at least a part of the first ring portion P1 constitutes a contact portion 16, and an amount of protrusion of the second ring portion P2 with respect to the contact portion 16 is smaller than that of protrusion of the third ring portion P3.
In some embodiments of the present invention, referring to fig. 10A, 10B, 11A, 11B, one of the first, second, and third annular portions P1, P2, and P3 protrudes toward the second side to constitute a ring-shaped protrusion 15, and portions of another one of the first, second, and third annular portions P1, P2, and P3, which are spaced apart in the circumferential direction, protrude toward the second side to constitute a plurality of protrusions 15.
In some embodiments of the present invention, referring to fig. 10A, 10B, 11A, 11B, one of the first annular portion P1 and the second annular portion P2 protrudes toward the second side to constitute a ring-shaped projection 15, and a plurality of portions of the third annular portion P3 spaced apart in the circumferential direction protrude toward the second side to constitute a plurality of projections 15.
In some embodiments of the present invention, referring to fig. 7, 8A, 8B, 9A, 9B, 10A, 10B, 12A, 12B, the plurality of protrusions 15 are arranged at equal intervals in the circumferential direction.
In some embodiments of the present invention, referring to fig. 7, 12A, the plurality of protrusions 15 have a circular, rectangular or trapezoidal shape, seen in a direction perpendicular to the heat exchanger plate 10.
In some embodiments of the present invention, referring to fig. 3 to 12B, the port portion 11P includes: a plurality of ring-shaped portions surrounding the opening 12, an inner edge P10 of the innermost ring-shaped portion constituting the edge 120 of the opening 12, and adjacent two ring-shaped portions of the plurality of ring-shaped portions abutting each other, at least a part of at least one of the plurality of ring-shaped portions protruding toward the second side to constitute the projection 15.
In some embodiments of the invention, referring to fig. 3-12B, at least one of the plurality of ring-shaped portions protrudes towards the second side to form an annular protrusion 15; or a plurality of portions of at least one of the plurality of ring-shaped portions spaced apart in the circumferential direction protrude toward the second side to constitute a plurality of projections 15.
In some embodiments of the present invention, referring to fig. 5, 10A, 10B, 11A, 11B, 12A, 12B, the port portion 11P includes: at least three ring portions surrounding the opening 12, an inner edge P10 of the innermost ring portion constituting the edge 120 of the opening 12, and adjacent two of the at least three ring portions abutting each other, at least a part of each of the at least two of the at least three ring portions protruding toward the second side to constitute the projection 15.
In some embodiments of the invention, referring to fig. 5, 10A, 10B, 11A, 11B, 12A, 12B, the amount of protrusion of at least a portion of one of the at least two ring-shaped portions is different from the amount of protrusion of at least a portion of another of the at least two ring-shaped portions; or the amount of protrusion of at least a portion of one of the at least two ring portions is the same as the amount of protrusion of at least a portion of another of the at least two ring portions.
In some embodiments of the invention, referring to fig. 5, 10A, 10B, 11A, 11B, 12A, 12B, each of at least two of the at least three ring-shaped portions protrudes towards the second side to constitute an annular protrusion 15; a plurality of portions spaced apart in the circumferential direction of each of at least two of the at least three annular portions project toward the second side to constitute a plurality of projections 15; or a plurality of portions spaced apart in the circumferential direction of one of at least two of the at least three ring-shaped portions project toward the second side to constitute a plurality of projections 15, and another one of at least two of the at least three ring-shaped portions projects toward the second side to constitute an annular projection 15.
In some embodiments of the invention, referring to fig. 3, 4, 5, 6, 8A, 8B, 9A, 9B, 10A, 10B, 11A, 11B, 12B, the bosses 15 of two adjacent heat exchanger plates 10 sealingly connected to each other at the port portion 11P project in a direction away from each other, the gap between the two bosses 15 being in the range of 0.2-0.3 mm.
In some embodiments of the invention, referring to fig. 3, 4, 5, 6, 8A, 8B, 9A, 9B, 10A, 10B, 11A, 11B, 12B, the bosses 15 of two adjacent heat exchanger plates 10 sealingly connected to each other at the port portion 11P project away from each other, the gap between two bosses 15 being in the range of 0.2-0.3 mm, and the gap between two bosses 15 being filled with solder for soldering the plate heat exchanger to solder the two bosses 15 together. Thereby, for example, the reinforcing effect of the projection 15 on the port portion 11P can be further improved.
In some embodiments of the invention, the heat exchanger plate 10 is formed from a plate, for example by stamping. After forming the heat exchanger plate 10, the plate has undeformed portions that are not deformed towards said first and said second side, the undeformed portions being in an initial plane, i.e. the undeformed plane in which the plate is located before being machined (e.g. punched). The protrusions 15 protrude from the initial plane, in which at least one of the ring-shaped portions is not formed, i.e. lies, towards the second side.
According to the embodiment of the present invention, referring to fig. 3 to 12B, the height, the outer dimension, etc. of the protrusions 15 may be adjusted according to the dimension of the corrugated structure of the heat exchanging region, and at the same time, the number of the plurality of protrusions 15 around each opening may also be adjusted accordingly. The height of the protrusions is less than the height of the peaks of the wave structure.
According to the embodiment of the invention, when the size of the port of the heat exchange plate is larger, and when the number of the heat exchange plates stacked is larger, the risk of warping of the heat exchange plate can be obviously reduced, the qualification rate of products is improved, and the flatness near the opening for forming the port after the heat exchange plate is molded can be improved.
According to an embodiment of the invention, the flatness of the heat exchanger plate can be improved by providing a step-like structure in the vicinity of the opening of the heat exchanger plate, i.e. by providing the original whole plane as two or more planes of unequal height. Meanwhile, for the formed heat exchange plate, the structure can obviously enhance the strength near the opening and prevent the generation of warping.
According to the embodiment of the invention, the warping deformation which is possibly generated when the stacking number of the heat exchange plates is large or the openings of the heat exchange plates are large is eliminated, the flatness near the openings of the heat exchange plates is improved, the brazing quality among the heat exchange plates is improved, and the overall structural strength of the heat exchanger is finally improved. In addition, the qualification rate of products is improved.
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 (15)

1. A heat exchanger plate for a plate heat exchanger, comprising:
a heat exchange portion through which fluids of different temperatures exchange heat with each other, and a port portion in which an opening for serving as a port of the heat exchanger is formed,
wherein the heat exchanger plates have a first side and a second side in a direction perpendicular to the heat exchanger plates, and the port portion has a contact portion at the first side for contacting a port portion of another heat exchanger plate, and a protrusion protruding towards the second side with respect to the contact portion.
2. A heat exchanger plate for a plate heat exchanger according to claim 1, wherein:
the port portion includes a plurality of projections distributed in a circumferential direction around the opening.
3. A heat exchanger plate for a plate heat exchanger according to claim 2, wherein:
the plurality of protrusions has a circular, rectangular or trapezoidal shape when viewed in a direction perpendicular to the heat exchange plate.
4. A heat exchanger plate for a plate heat exchanger according to claim 1, wherein:
the port portion includes an annular contact portion and an annular projection surrounding the opening, the annular contact portion and the annular projection being contiguous.
5. The heat exchanger plate for a plate heat exchanger according to claim 4, wherein:
the port portion includes at least two annular projections surrounding the opening, two of the at least two annular projections being adjacent and having different amounts of projection relative to the contact portion; or two of the at least two annular projections are separated by an annular contact portion.
6. A heat exchanger plate for a plate heat exchanger according to claim 1, wherein:
the port part includes: a first annular portion surrounding the opening, an inner edge of the first annular portion constituting an edge of the opening; and a second annular portion surrounding and contiguous with the first annular portion, at least a portion of one of the first and second annular portions constituting the projection.
7. The heat exchanger plate for a plate heat exchanger according to claim 6, wherein:
a plurality of portions of at least one of the first annular portion and the second annular portion that are spaced apart in the circumferential direction constitute a plurality of projections; or
One of the first and second annular portions constitutes an annular projection; or
One of the first annular portion and the second annular portion constitutes an annular projection, and a plurality of portions of the other of the first annular portion and the second annular portion spaced apart in the circumferential direction constitute a plurality of projections.
8. A heat exchanger plate for a plate heat exchanger according to claim 1, wherein:
the port part includes: a first annular portion surrounding the opening, an inner edge of the first annular portion constituting an edge of the opening; a second annular portion surrounding and contiguous with the first annular portion; and a third annular portion surrounding and contiguous with the second annular portion, at least a portion of at least one of the first, second, and third annular portions constituting a protrusion.
9. The heat exchanger plate for a plate heat exchanger according to claim 8, wherein:
the second annular portion and the third annular portion protrude toward the second side with respect to the portion of the surface of the port portion to constitute a projection, at least a portion of the first annular portion constitutes a contact portion, and an amount of protrusion of the second annular portion with respect to the contact portion is smaller than an amount of protrusion of the third annular portion.
10. The heat exchanger plate for a plate heat exchanger according to claim 8, wherein:
one of the first, second, and third annular portions constitutes an annular projection, and a plurality of portions of another one of the first, second, and third annular portions that are spaced apart in the circumferential direction constitutes a plurality of projections.
11. A heat exchanger plate for a plate heat exchanger according to claim 1, wherein:
the port part includes: a plurality of ring portions surrounding the opening, an inner edge of an innermost ring portion constituting an edge of the opening, and adjacent two of the plurality of ring portions abutting each other, at least a part of at least one of the plurality of ring portions constituting the projection.
12. A heat exchanger plate for a plate heat exchanger according to claim 11, wherein:
at least one of the plurality of ring-shaped portions protrudes toward the second side with respect to the portion of the surface of the port portion to constitute an annular projection; or
A plurality of portions of at least one of the plurality of ring-shaped portions spaced apart in the circumferential direction protrude toward the second side with respect to the one portion of the surface of the port portion to constitute a plurality of projections.
13. A plate heat exchanger comprising:
a plurality of heat exchanger plates as claimed in any one of claims 1 to 12.
14. The plate heat exchanger of claim 13 wherein:
the bosses of two adjacent heat exchanger plates sealingly connected to each other at the port portions project away from each other, the gap between the two bosses being in the range of 0.2-0.3 mm.
15. The plate heat exchanger of claim 13 wherein:
the bosses of two adjacent heat exchanger plates sealingly connected to each other at the port portions project away from each other, the gap between the two bosses being in the range of 0.2-0.3 mm, and the gap between the two bosses being filled with solder for soldering the plate heat exchanger to solder the two bosses together.
CN201911189175.0A 2019-10-31 2019-11-27 Heat exchange plate for plate heat exchanger and plate heat exchanger Active CN112747613B (en)

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MX2022005030A MX2022005030A (en) 2019-10-31 2020-10-28 Heat exchange plate for use in plate-type heat exchanger, and plate-type heat exchanger.
EP20880738.8A EP4053488A4 (en) 2019-10-31 2020-10-28 Heat exchange plate for use in plate-type heat exchanger, and plate-type heat exchanger
US17/773,118 US20230147560A1 (en) 2019-10-31 2020-10-28 Heat exchange plate for plate heat exchanger, and plate heat exchanger
PCT/CN2020/124321 WO2021083189A1 (en) 2019-10-31 2020-10-28 Heat exchange plate for use in plate-type heat exchanger, and plate-type heat exchanger

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CN201911063164 2019-10-31

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CN (1) CN112747613B (en)
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EP4053488A1 (en) 2022-09-07
EP4053488A4 (en) 2023-11-08
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WO2021083189A1 (en) 2021-05-06
US20230147560A1 (en) 2023-05-11

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