WO2020001125A1 - 一种换热器 - Google Patents

一种换热器 Download PDF

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Publication number
WO2020001125A1
WO2020001125A1 PCT/CN2019/082038 CN2019082038W WO2020001125A1 WO 2020001125 A1 WO2020001125 A1 WO 2020001125A1 CN 2019082038 W CN2019082038 W CN 2019082038W WO 2020001125 A1 WO2020001125 A1 WO 2020001125A1
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WO
WIPO (PCT)
Prior art keywords
plate
corner hole
plate surface
heat exchanger
corner
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.)
Ceased
Application number
PCT/CN2019/082038
Other languages
English (en)
French (fr)
Inventor
尹芳芳
邹继光
邹江
江巍鑫
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.)
Zhejiang Sanhua Automotive Components Co Ltd
Original Assignee
Zhejiang Sanhua Automotive Components Co Ltd
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 Zhejiang Sanhua Automotive Components Co Ltd filed Critical Zhejiang Sanhua Automotive Components Co Ltd
Priority to EP19824896.5A priority Critical patent/EP3816556B1/en
Priority to US17/255,386 priority patent/US11971224B2/en
Publication of WO2020001125A1 publication Critical patent/WO2020001125A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F28D9/0056—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 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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
    • 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
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • 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
    • F28F3/02—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
    • F28F3/046—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 linear, e.g. corrugations
    • 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
    • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/08—Fins with openings, e.g. louvers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the invention relates to the technical field of heat exchange, in particular to a heat exchanger.
  • Plate-fin heat exchangers usually consist of plates and fins.
  • the fins are placed between two adjacent plates to form a fluid channel; a plurality of such plates are stacked in different ways according to actual needs, and brazing into a whole forms a plate bundle; the plate bundle and the corresponding The head, tube, support and other parts are assembled to form a plate-fin heat exchanger.
  • the plate-fin heat exchanger Compared with the traditional heat exchanger, the plate-fin heat exchanger has a secondary surface and is very compact. The disturbance of the fluid by the fins causes the boundary layer of the fluid to constantly rupture. At the same time, due to the high thermal conductivity of the plates and fins, This makes the plate-fin heat exchanger very efficient.
  • the fins can improve the turbulence of the fluid, they also have the problems of large flow resistance and low pressure resistance, making the plate-fin heat exchanger difficult to apply to low-pressure fluid and high-pressure fluid.
  • the present invention provides a heat exchanger including a heat exchange core, the heat exchange core including a plurality of first plates, a plurality of second plates and fins, wherein the first A plate includes a first plate surface, a plurality of convex portions protruding from the first plate surface, and a second plate surface opposite to the first plate surface.
  • the second plate includes a first plate surface, and The second plate surface opposite to the first plate surface, a first fluid channel and a second fluid channel separated from each other are formed in the heat exchange core, and the fins are disposed on the second plate of the first plate.
  • the convex portion is located between the first plate surface of the first plate and the second plate surface of the adjacent second plate, A first channel is formed between the second plate surface of the first plate and the first plate surface of the second plate, the first channel is a part of the first fluid channel, and the first plate A second channel is formed between the first plate surface of the sheet and the second plate surface of the second plate, and the second channel is a part of the second fluid channel.
  • the provided heat exchanger includes a first plate and a second plate.
  • a plurality of convex portions are provided on a first plate surface side of the first plate, and a second plate surface of the first plate is adjacent to an adjacent second plate. Fins are provided between the first plate surfaces of the first plate, and turbulence is achieved by a plurality of convex portions between the side of the first plate provided with convex portions and the second plate surface of the adjacent second plate.
  • This heat exchanger improves the turbulence through fins in the first fluid channel, and improves the turbulence through a number of convex structures in the second fluid channel, so that low-pressure fluid can flow in the first fluid channel, and the second High-pressure fluid can flow through the fluid passage.
  • FIG. 1 is a schematic perspective view of an embodiment of a heat exchanger according to the present invention.
  • FIG. 2 is a partially exploded schematic diagram of a bottom plate and a heat exchange core of the heat exchanger shown in FIG. 1.
  • FIG. 3 is a schematic structural diagram of a first plate of the heat exchanger shown in FIG. 1.
  • FIG. 4 is a schematic structural diagram of a second plate of the heat exchanger shown in FIG. 1.
  • FIG. 5 is a schematic structural diagram of a bottom plate of the heat exchanger shown in FIG. 1.
  • FIG. 6 is a schematic diagram of a fin structure of the heat exchanger shown in FIG. 1.
  • FIG. 7 is a schematic structural diagram of a combination of a second plate and a fin of the heat exchanger shown in FIG. 1.
  • FIG. 8 is a perspective view showing a partial structure of a combination of a second plate and a fin of the heat exchanger shown in FIG. 1.
  • FIG. 9 is a schematic partial cross-sectional view of a heat exchange core of the heat exchanger shown in FIG. 1.
  • FIG. 1 is a schematic perspective view of an embodiment of a heat exchanger according to the present invention
  • FIG. 2 is a partially exploded schematic view of a bottom plate and a heat exchange core of the heat exchanger shown in FIG. 1.
  • the heater includes a top plate 3, a heat exchange core 1 and a bottom plate 2.
  • the heat exchange core includes a plurality of first plates 11, a plurality of second plates 12, and a plurality of fins 7.
  • one of the first plates 11 is disposed adjacent to the bottom plate 2, and a fin 7 is provided between the bottom plate 2 and the first plate 11, and the fins 7 are also of the heat exchange core 1.
  • a part of the second plate 12 is adjacent to the top plate 3.
  • a plurality of first plates 11 and a plurality of second plates 12 are stacked in sequence to form a heat exchange core 1.
  • the heat exchange core 1 has a first fluid channel and a second fluid channel that are isolated from each other.
  • the heat exchanger further includes a first connection pipe 5 and a second connection pipe 6, wherein the first connection pipe 5 includes a first interface channel 51, the second connection pipe 6 includes a second interface channel 61, and the first interface channel 51 and the second interface channel 61 are respectively It is in communication with the first fluid channel, and the first interface channel 51 is in communication with the second interface channel 61 through the first fluid channel.
  • the heat exchanger further includes an adapter base 4, which includes a third interface channel 41 and a fourth interface channel 42, the third interface channel 41 and the fourth interface channel 42 are in communication with the second fluid channel, and the third interface
  • the passage 41 is in communication with the fourth interface passage 42 through the second fluid passage.
  • the adapter 4 can also include two parts, like the first and second nozzles 5 and 6, and the structure of the adapter used in this embodiment is conducive to the installation of external pipelines.
  • the two external pipes communicating with the three interface channel 41 and the fourth interface channel 42 can be fixedly installed by a pressure block, which is convenient to install and saves material.
  • the first plate 11 includes a first plate surface 110, a first corner hole portion 101 and a second corner hole portion 102 recessed in the first plate surface 110, and protrudes from the first plate surface.
  • the first corner hole portion 101 is provided with a first corner hole 111
  • the second corner hole portion 102 is provided with a second corner hole 112
  • the third corner hole portion 103 is provided with a third corner hole 113
  • the fourth corner hole portion 104 is provided with a fourth ⁇ ⁇ 114 ⁇
  • the corner hole 114 The first corner hole 111 and the second corner hole 112 are round holes.
  • the first corner hole 111 is in communication with the fourth interface channel 42
  • the second corner hole 112 is in communication with the third interface channel 41.
  • the third triangle hole 113 and the fourth corner hole 114 are round waist holes.
  • the third corner hole 113 is in communication with the second interface channel 61
  • the fourth corner hole 114 is in communication with the first interface channel 51. It should be noted here that the third corner hole 113 and the fourth corner hole 114 may have other shapes such as a circle.
  • the convex portions 115 are distributed in the area where the first plate surface 110 is located. In this embodiment, most of the convex portions 115 are distributed between the first corner hole portion 101 and the third corner hole portion 103, the second corner hole portion 102 and the fourth corner hole portion 102. Between the corner holes 104. In order to improve the heat exchange performance of the heat exchanger, a convex portion 115 is also provided between the first corner hole portion 101 and the second corner hole portion 102. This portion of the convex portion 115 can serve as a flow guide, thereby improving the first The heat transfer coefficient of the area between the corner hole portion 101 and the second corner hole portion 102.
  • a convex portion 115 may be provided at a corner portion of the first plate 11 adjacent to the first corner hole portion 101 and the second corner hole portion 102, and this portion of the convex portion 115 may also serve as a flow guide. Thereby, the heat transfer coefficient of the corner region can be improved.
  • the first recessed portion 116 and the second recessed portion 117 are connected.
  • the second recessed portion 117 is disposed between the third corner hole portion 103 and the fourth corner hole portion 104.
  • the first recessed portion 116 is disposed in the distribution area of the convex portion 115, and most of the convex portion 115
  • the convex portions 115 are distributed on both sides of the first concave portion 116 in this embodiment. At least a part of the convex portions 115 are symmetrically distributed on both sides of the first concave portion 116 in this embodiment. This arrangement can improve the turbulence of the fluid, and at the same time, it can evenly distribute the fluid, thereby improving the heat exchange performance of the heat exchanger.
  • the first recessed portion 116 has a dumbbell-shaped structure with a width at both ends greater than that of the middle portion (both ends, that is, one end faces the third corner hole 113 and the fourth corner hole 114, and the other end faces the first corner hole 101 and the second corner hole 102 ),
  • the first concave portion 116 can play a role of guiding the flow. This structure is also beneficial to the uniform distribution of the fluid, and the flow resistance is also low, which can improve the heat exchange performance.
  • the width of the two ends of the first recessed portion 116 is larger than the width of the second recessed portion 117. This arrangement makes the area of the heat exchange area larger between the first corner hole 111 and the second corner hole 112. It is beneficial to improve the heat exchange performance of the heat exchanger.
  • a recessed structure (not shown in the figure) corresponding to a convex structure is provided on the second plate surface (not shown in the figure) side of the first plate surface 110 of the first plate 11, and A corresponding convex structure (not shown in the figure) of the concave structure.
  • the second plate 12 includes a first plate surface 120, first corner hole portions 105 and second corner hole portions 106 protruding from the first plate surface 120, and recesses in the first plate.
  • the first corner hole portion 105 is provided with a first corner hole 121
  • the second corner hole portion 106 is provided with a second corner hole 122
  • the second plate 12 is further provided with a third corner hole 123 and a fourth corner hole 124.
  • the first corner hole 121 and the second corner hole 122 are circular holes.
  • the first corner hole 121 is in communication with the fourth interface channel 42
  • the second corner hole 122 is in communication with the third interface channel 41.
  • the third triangle hole 123 and the fourth corner hole 124 are round waist holes.
  • the third corner hole 123 communicates with the second interface channel 61
  • the fourth corner hole 124 communicates with the first interface channel 51. It should be noted here that the third corner hole 123 and the fourth corner hole 124 may have other shapes such as a circle.
  • the first recessed portion 126 and the second recessed portion 127 are connected, and the second recessed portion 127 is disposed between the third corner hole portion 105 and the fourth corner hole portion 106.
  • the first recessed portion 126 has a dumbbell-shaped structure with a width at both ends greater than the width of the middle portion.
  • the first recessed portion 126 can play a role of guiding the flow, which is beneficial to the uniform distribution of the fluid, and has a low flow resistance, which can improve the heat exchange performance.
  • the width of both ends of the first recessed portion 126 is greater than the width of the second recessed portion 127. In this way, the area of the heat exchange area between the first corner hole 121 and the second corner hole 122 is larger, which is beneficial to improving the heat exchange performance of the heat exchanger.
  • a recessed structure (not shown in the figure) corresponding to a raised structure is provided on the second plate surface (not shown in the figure) side of the first plate surface 120 of the second plate 12, and A corresponding convex structure (not shown in the figure) of the concave structure.
  • a fin 7 is provided on the first plate surface 120 of the second plate 12.
  • the fin 7 includes a first orifice region 71 corresponding to the first corner hole portion 105, a second orifice region 72 corresponding to the second corner hole portion 106, and a third orifice corresponding to the third corner hole 123.
  • a part of the fin 7 is located between the first corner hole portion 105 and the second corner hole portion 106, on the one hand, it can guide the flow, and on the other hand, it can also improve the turbulence of the coolant in this area.
  • the cooling liquid and refrigerant can fully exchange heat, thereby improving the heat exchange performance.
  • the fin 7 is a window fin, a center line of the window 76 of the window fin 7, a center line of the flow passage 75 of the window fin 7, and the third corner hole 123.
  • the width directions are parallel. This is beneficial to reduce the flow resistance of the cooling liquid, thereby improving the heat exchange performance.
  • the width direction of the third corner hole 123 refers to the width direction of the waist round hole. When the third corner hole 123 has other structures, the width direction is still consistent with the width direction of the waist round hole.
  • the first plate surface 110 of the first plate 11 is opposite to the second plate surface of the second plate 12, and the convex portion 115, the third corner hole portion 13 and the first The four-corner hole portion 14 is in contact with the second plate surface of the second plate 12 and is fixed by welding.
  • the convex structure corresponding to the second concave portion 127 of the second plate 12 and the first plate surface 110 of the first plate 11 The convex structure corresponding to the first recessed portion 126 of the second plate 12 is in contact with the first recessed portion 116 of the first plate 11 and fixed by welding.
  • a portion of the second fluid passage is formed between a plate surface 110 and the second plate surface of the second plate 12.
  • the depth of the first recessed portion 116 of the first plate 11 may be set greater than the depth of the second recessed portion 117 of the first plate 11, and the depth of the first recessed portion 126 of the second plate 12 is greater than that of the second plate 12.
  • the depth of the second concave portion 127 is relatively simple to process and install, and the area of the first plate surface 110 is large, which is beneficial to improving the heat exchange performance.
  • the refrigerant flowing in from the first corner hole 111 passes through the first concave portion of the first plate 11 in sequence.
  • the second plate surface of the first plate 11 is opposite to the first plate surface 120 of the second plate 12, and the fins 7 are provided on the second plate surface of the first plate 11 and the first plate of the second plate 12.
  • the convex structures corresponding to the first corner hole portion 105 and the second corner hole portion 106 of the second plate 12 and the first corner hole portion 101 and the second corner hole portion 102 of the first plate 11 The convex structure corresponding to the second concave portion 117 on the second plate surface side of the first plate 11 is in contact with and fixed by welding, and the first plate surface 120 of the second plate 12 is in contact with and fixed by welding.
  • the convex structure corresponding to the first concave portion 116 of the plate 11 is in contact with the first concave portion 126 of the second plate 12 and is fixed by welding. In this way, a part of the first fluid passage is formed between the first plate surface 120 of the second plate 12 and the second plate surface of the first plate 11.
  • the coolant flowing in from the third corner hole 123 passes through the first recessed portion 126 of the second plate 12 in sequence
  • a channel formed between the second plate surface of the first plate 11 and the first plate surface 120 of the second plate 12 is a first channel (not shown in the figure).
  • the first plate 11 The channel formed between the first plate surface 110 and the second plate surface of the second plate 12 is a second channel (not shown in the figure).
  • the number of the first channel is one more than the number of the second channel.
  • the refrigerant fully absorbs heat to ensure superheat.
  • the distance between the second plate surface of the first plate 11 and the first plate surface 120 of the second plate 12 is h2.
  • the height of the distance between the one plate surface 110 and the second plate surface of the second plate piece 12 (that is, the convex portion 15) is h1, and the height of the two is preferably satisfied: 1 ⁇ H2 / h1 ⁇ 4. It can be known through experiments or simulations that this arrangement can further improve the heat transfer coefficient.

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

Abstract

一种换热器，包括第一板片（11）和第二板片（12），第一板片（11）的第一板面（110）侧设置有若干凸部（115），在第一板片（11）的第二板面与相邻的第二板片（12）的第一板面（120）之间设置有翅片（7），而在第一板片（11）设置有凸部（115）一侧与相邻的第二板片（12）的第二板面之间没有设置翅片（7）。这种换热器在第一流体通道中通过翅片（7）提高扰流性，在第二流体通道中则通过若干凸部（115）结构提高扰流性，使得第一流体通道中可以流通低压流体，第二流体通道中可以流通高压流体。

Description

一种换热器
本申请要求于2018年06月29日提交中国专利局、申请号为201810702894.7、发明名称为“一种换热器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及热交换技术领域，特别涉及一种换热器。
背景技术
板翅式换热器通常是由板片、翅片组成。在相邻两板片间放置翅片后形成为流体通道；多个这样的板片根据实际需要以不同的方式叠置起来，钎焊成为一个整体便组成了板束；将板束和对应的封头、接管、支撑等零件装配起来，就组成了板翅式换热器。
相比于传统的换热器，板翅式换热器具有二次表面，结构十分紧凑，翅片对流体的扰动使流体的边界层不断破裂，同时由于板片和翅片的高导热性，使得板翅式换热器具有很高的效率。
虽然翅片能够提高流体的扰流性，但同时也存在流阻较大、耐压性能不高的问题，从而使得板翅式换热器很难适用于低压流体和高压流体之间换热。
发明内容
为解决上述技术问题，本发明提供一种换热器，包括换热芯体，所述换热芯体包括若干第一板片、若干第二板片和翅片，其特征在于，所述第一板片包括第一板面、凸出于所述第一板面的若干凸部、与所述第一板面相对的第二板面，所述第二板片包括第一板面、与所述第一板面相对的第 二板面，所述换热芯体中形成相互隔离的第一流体通道和第二流体通道，所述翅片设置于所述第一板片的第二板面与所述第二板片的第一板面之间，所述凸部位于所述第一板片的第一板面与相邻的所述第二板片的第二板面之间，所述第一板片的第二板面与所述第二板片的第一板面之间形成第一通道，所述第一通道为所述第一流体通道的一部分，所述第一板片的第一板面与所述第二板片的第二板面之间形成第二通道，所述第二通道为所述第二流体通道的一部分。
提供的换热器包括第一板片和第二板片，第一板片的第一板面侧设置有若干凸部，在第一板片的第二板面与相邻的第二板片的第一板面之间设置有翅片，而在第一板片设置有凸部一侧与相邻的第二板片的第二板面之间通过若干凸部实现扰流。这种换热器在第一流体通道中通过翅片提高扰流性，在第二流体通道中则通过若干凸部结构提高扰流性，可以使得第一流体通道中可以流通低压流体，第二流体通道中可以流通高压流体。
附图说明
图1是本发明换热器的一实施例的立体示意图。
图2是图1所示换热器的底板和换热芯体的部分爆炸示意图。
图3是图1所示换热器的第一板片结构示意图。
图4是图1所示换热器的第二板片结构示意图。
图5是图1所示换热器的底板结构示意图。
图6是图1所示换热器的翅片结构示意图。
图7是图1所示换热器的第二板片与翅片结合的结构示意图。
图8是图1所示换热器的第二板片与翅片结合的局部结构立体示意图。
图9是图1所示换热器的换热芯体的局部剖视示意图。
具体实施方式
下面结合附图对本发明的具体实施方式进行说明。
图1是本发明换热器的一实施例的立体示意图，图2是图1所示换热器的底板和换热芯体的部分爆炸示意图，如图所示，在本实施例中，换热 器包括顶板3、换热芯体1和底板2，换热芯体包括若干个第一板片11、若干个第二板片12和若干翅片7。在本实施例中，其中一第一板片11与底板2相邻设置，在底板2与该第一板片11之间设置有翅片7，该翅片7也为换热芯体1的一部分，而其中一第二板片12与顶板3相邻设置。
依次层叠设置的若干个第一板片11、若干个第二板片12配合安装形成为换热芯体1，换热芯体1中有相互隔离的第一流体通道和第二流体通道。换热器还包括第一接管5和第二接管6，其中第一接管5包括第一接口通道51，第二接管6包括第二接口通道61，第一接口通道51和第二接口通道61分别与第一流体通道相连通，第一接口通道51通过第一流体通道与第二接口通道61相连通。
换热器还包括转接座4，转接座4包括第三接口通道41和第四接口通道42，第三接口通道41和第四接口通道42分别与第二流体通道相连通，第三接口通道41通过第二流体通道与第四接口通道42相连通。这里应当指出，转接座4也可以与第一接管5和第二接管6一样包括两部分，而本实施例中所采用的转接座的结构，有利于外接管路的安装，分别与第三接口通道41和第四接口通道42连通的两个外接管可以通过一个压块固定安装，安装方便，也较为节省材料。
如图2和图3所示，第一板片11包括第一板面110、凹陷于第一板面110的第一角孔部101和第二角孔部102、凸出于第一板面110的第三角孔部103和第四角孔部104、凸出于第一板面110的若干凸部115、以及凹陷于第一板面110的第一凹部116和第二凹部117。
第一角孔部101设置有第一角孔111，第二角孔部102设置有第二角孔112、第三角孔部103设置有第三角孔113，第四角孔部104设置有第四角孔114。其中，第一角孔111和第二角孔112为圆孔，第一角孔111与第四接口通道42连通，第二角孔112与第三接口通道41连通。第三角孔113和第四角孔114为腰圆孔，第三角孔113与第二接口通道61连通，第 四角孔114与第一接口通道51连通。这里应当说明，第三角孔113和第四角孔114也可以是圆形等其它形状。
凸部115分布于第一板面110所在区域，在本实施例中，凸部115大部分分布于第一角孔部101和第三角孔部103之间、第二角孔部102和第四角孔部104之间。为了提高换热器的换热性能，在第一角孔部101和第二角孔部102之间也设置有凸部115，这部分凸部115可以起到导流的作用，从而提高第一角孔部101和第二角孔部102之间区域的传热系数。同样的，在第一板片11的与第一角孔部101和第二角孔部102相邻的角部也可以设置有凸部115，这部分凸部115也可以起到导流作用，从而可以提高该部分角部区域的传热系数。
第一凹部116和第二凹部117相连接，第二凹部117设置于第三角孔部103和第四角孔部104之间，第一凹部116设置于凸部115分布区域，大部分凸部115分布于第一凹部116的两侧，在本实施例中，凸部115较为均匀的分布于第一凹部116的两侧，且至少一部分凸部115在第一凹部116的两侧对称分布。这种设置方式能够提高流体的扰流性，同时也能够使流体均匀分布，从而提高换热器的换热性能。
第一凹部116呈两端部分宽度大于中间部分宽度的哑铃状结构(两端即一端朝向第三角孔113和第四角孔114，另一端朝向第一角孔部101和第二角孔部102)，第一凹部116可以起到导流的作用，这种结构也有利于流体的均匀分布，且流阻也较低，可以提高换热性能。
在本实施例中，第一凹部116两端部分的宽度大于第二凹部117的宽度，这种设置方式使得在第一角孔111和第二角孔112之间部分的换热区域面积较大，有利于提高换热器的换热性能。
这里应当说明，在第一板片11的第一板面110相对的第二板面(图中未示出)侧设置有与凸起结构相对应的凹陷结构(图中未示出)、与凹陷结构相对应的凸起结构(图中未示出)。
如图2和图4所示，第二板片12包括第一板面120、凸出于第一板面120的第一角孔部105和第二角孔部106、以及凹陷于第一板面110的第一凹部126和第二凹部127。
第一角孔部105设置有第一角孔121，第二角孔部106设置有第二角孔122，第二板片12还设置有第三角孔123和第四角孔124。其中，第一角孔121和第二角孔122为圆孔，第一角孔121与第四接口通道42连通，第二角孔122与第三接口通道41连通。第三角孔123和第四角孔124为腰圆孔，第三角孔123与第二接口通道61连通，第四角孔124与第一接口通道51连通。这里应当说明，第三角孔123和第四角孔124也可以是圆形等其它形状。
第一凹部126和第二凹部127相连接，第二凹部127设置于第三角孔部105和第四角孔部106之间。第一凹部126呈两端部分宽度大于中间部分宽度的哑铃状结构，第一凹部126可以起到导流的作用，有利于流体的均匀分布，且流阻也较低，可以提高换热性能。
在本实施例中，第一凹部126两端部分的宽度大于第二凹部127的宽度。，这种设置方式使得在第一角孔121和第二角孔122之间部分的换热区域面积较大，有利于提高换热器的换热性能。
这里应当说明，在第二板片12的第一板面120相对的第二板面(图中未示出)侧设置有与凸起结构相对应的凹陷结构(图中未示出)、与凹陷结构相对应的凸起结构(图中未示出)。
如图6和图7所示，在第二板片12的第一板面120设置有翅片7。翅片7包括与第一角孔部105相对应的第一孔口区71、与第二角孔部106相对应的第二孔口区72、与第三角孔123相对应的第三孔口区73、与第四角孔124相对应的第四孔口区74、以及与第一凹部126相对应的缺口区75。并且翅片7的一部分位于第一角孔部105和第二角孔部106之间部分，一方面可以起到导流的作用，另一方面也提高冷却液在该区域的扰流性，这 样，在制冷剂进出口区域，冷却液和制冷剂可以充分进行热交换，从而提高换热性能。而在第三角孔123和第四角孔124之间则没有设置翅片，由于在第三角孔123和第四角孔124附近区域制冷剂较少，这种设置方式可以使冷却液与制冷剂的量相匹配，从而有利于提高换热性能。
如图8所示，在本实施例中，翅片7为开窗翅片，开窗翅片7的窗口76的的中线、以及开窗翅片7的流通通道75的中线与第三角孔123的宽度方向相平行。这样有利于降低冷却液的流阻，从而提高换热性能。这里第三角孔123的宽度方向是指腰圆孔的宽度方向，当第三角孔123为其它结构时，其宽度方向仍然为与腰圆孔时的宽度方向一致。
如图2-9所示，第一板片11的第一板面110与第二板片12的第二板面相对设置，第一板片11的凸部115、第三角孔部13和第四角孔部14与第二板片12的第二板面相接触且通过焊接固定，第二板片12的第二凹部127相对应的凸起结构与第一板片11的第一板面110相接触且通过焊接固定，第二板片12的第一凹部126相对应的凸起结构与第一板片11的第一凹部116相接触且通过焊接固定，这样在第一板片11的第一板面110与第二板片12的第二板面之间形成第二流体通道的一部分。另外，第一板片11的第一凹部116的深度可以设置为大于第一板片11的第二凹部117的深度，第二板片12的第一凹部126的深度大于第二板片12的第二凹部127的深度，这种结构加工和安装都较为简单，且第一板面110的面积较大，有利于提高换热性能。
由于第二板片12的第一凹部126和第二凹部127相对应的凸起结构起到了阻隔作用，这样，从第一角孔111流入的制冷剂依次通过第一板片11的第一凹部116一侧的凸部115所在区域、第一板片11的第二凹部117所在区域、第一板片11的第一凹部116另一侧的凸部115所在区域后从第二角孔112流出。
第一板片11的第二板面与第二板片12的第一板面120相对设置，翅 片7设置在第一板片11的第二板面与第二板片12的第一板面120之间，第二板片12的第一角孔部105和第二角孔部106与第一板片11的第一角孔部101和第二角孔部102相对应的凸起结构相接触且通过焊接固定，第一板片11的第二板面侧的第二凹部117相对应的凸起结构与第二板片12的第一板面120相接触且通过焊接固定，第一板片11的第一凹部116相对应的凸起结构与第二板片12的第一凹部126相接触且通过焊接固定。这样在第二板片12的第一板面120与第一板片11的第二板面之间形成第一流体通道的一部分。
由于第一板片11的第一凹部116和第二凹部117相对应的凸起结构起到了阻隔作用，这样，从第三角孔123流入的冷却液依次通过第二板片12的第一凹部126一侧的翅片区域、第二板片12的第二凹部127所在区域、第二板片12的第一凹部126另一侧的翅片区域后从第四角孔123流出，而通过设置翅片可以提高冷却液的扰流性，提高换热器的性能。
在本实施例中，第一板片11的第二板面与第二板片12的第一板面120之间形成的通道为第一通道(图中未示出)，第一板片11的第一板面110与第二板片12的第二板面之间形成的通道为第二通道(图中未示出)，第一通道的数量比第二通道的数量多一个，可以使制冷剂充分吸收热量，从而保证过热度。
如图9所示，第一板片11的第二板面与第二板片12的第一板面120之间的距离即(翅片7的高度)为h2，第一板片11的第一板面110与第二板片12的第二板面之间的距离(即凸部15)的高度为h1，优选使二者的高度满足：1<H2/h1＜4。通过试验或模拟可知，这种设置方式可以进一步提高传热系数。
以上所述，仅是本发明的具体实施例而已，并非对本发明作任何形式上的限制。虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发 明。任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均仍属于本发明技术方案保护的范围内。

Claims (10)

  1. 一种换热器，包括换热芯体，所述换热芯体包括若干第一板片、若干第二板片和翅片，其特征在于，所述第一板片包括第一板面、凸出于所述第一板面的若干凸部、与所述第一板面相对的第二板面，所述第二板片包括第一板面、与所述第一板面相对的第二板面，所述换热芯体中形成相互隔离的第一流体通道和第二流体通道，所述翅片设置于所述第一板片的第二板面与相邻的所述第二板片的第一板面之间，所述凸部位于所述第一板片的第一板面与相邻的所述第二板片的第二板面之间，所述第一板片的第二板面与相邻的所述第二板片的第一板面之间形成第一通道，所述第一通道为所述第一流体通道的一部分，所述第一板片的第一板面与相邻的所述第二板片的第二板面之间形成第二通道，所述第二通道为所述第二流体通道的一部分。
  2. 根据权利要求1所述的换热器，其特征在于，所述翅片的高度大于所述凸部的高度，并且，所述翅片的高度与所述凸部的高度的比值大于1且小于4。
  3. 根据权利要求2所述的换热器，其特征在于，所述第一板片还包括凹陷于所述第一板面的第一角孔部和第二角孔部、凸出于所述第一板面的第三角孔部和第四角孔部、凹陷于所述第一板面的第一凹部和第二凹部，在所述第一板片的第二板面侧设置有与所述第一板片的第一凹部和第二凹部相对应的凸起结构，所述第一板片的第一凹部和所述第二凹部相连接，所述第二凹部设置于所述第三角孔部和所述第四角孔部之间，绝大部分所述凸部分布于所述第一凹部的两侧。
  4. 根据权利要求3所述的换热器，其特征在于，一部分所述凸部设置于所述第一板片的第一角孔部和第二角孔部之间区域，一部分所述凸部设置于所述第一板片的与所述第一角孔部相邻的角部和所述第二角孔部相邻的角部；
    所述第一板片的第一凹部的两端部分的宽度大于中间部分的宽度，所述第一板片的第一凹部两端部分的宽度大于所述第二凹部的宽度。
  5. 根据权利要求4所述的换热器，其特征在于，所述第二板片还包括凸出于所述第一板面的第一角孔部和第二角孔部、凹陷于所述第一板面的第一凹部和第二凹部，在所述第二板片的第二板面侧设置有与所述第二板片的第一凹部和第二凹部相对应的凸起结构，所述第一凹部和所述第二凹部相连接，所述第二凹部设置于所述第二板片的第一角孔部和所述第二角孔部之间。
  6. 根据权利要求5所述的换热器，其特征在于，所述第二板片的第一凹部的两端部分的宽度大于中间部分的宽度，所述第二板片的第一凹部两端部分的宽度大于所述第二板片的第二凹部的宽度。
  7. 根据权利要求5所述的换热器，其特征在于，所述第二板片还设置有第三角孔和第四角孔，所述翅片包括与所述第一角孔部相对应的所述第一孔口区、与所述第二角孔部相对应的第二孔口区、与所述第三角孔相对应的第三孔口区、与所述第四角孔相对应的第四孔口区、以及与所述第一凹部相对应的缺口区，并且所述翅片的一部分位于所述第一角孔部和第二角孔部之间。
  8. 根据权利要求7所述的换热器，其特征在于，所述翅片为开窗翅片， 所述开窗翅片的窗口的中线、以及开窗翅片的流通通道的中线与所述第三角孔的宽度方向相平行。
  9. 根据权利要求7所述的换热器，其特征在于，所述第一板片的凸部、第三角孔部和第四角孔部与相邻的所述第二板片的第二板面相接触且通过焊接固定，所述第二板片的第二凹部相对应的凸起结构与相邻的所述第一板片的第一板面相接触且通过焊接固定，所述第二板片的第一凹部相对应的凸起结构与相邻的所述第一板片的第一凹部相接触且通过焊接固定，所述第一板片的第一凹部的深度大于所述第一板片的第二凹部的深度，所述第二板片的第一凹部的深度大于所述第二板片的第二凹部的深度。
  10. 根据权利要求1-9任一项所述的换热器，其特征在于，所述换热器还包括位于所述换热芯体两侧的顶板和底板，所述底板与一所述第一板片相邻设置，在所述底板与相邻的该所述第一板片之间设置有所述翅片，而所述顶板与一所述第二板片相邻设置，所述第一通道的数量比所述第二通道的数量多一个。
PCT/CN2019/082038 2018-06-29 2019-04-10 一种换热器 Ceased WO2020001125A1 (zh)

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