US20220026152A1 - Heat Exchanger Flat Tube and Heat Exchanger with Heat Exchanger Flat Tube - Google Patents

Heat Exchanger Flat Tube and Heat Exchanger with Heat Exchanger Flat Tube Download PDF

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Publication number
US20220026152A1
US20220026152A1 US17/312,021 US201917312021A US2022026152A1 US 20220026152 A1 US20220026152 A1 US 20220026152A1 US 201917312021 A US201917312021 A US 201917312021A US 2022026152 A1 US2022026152 A1 US 2022026152A1
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Prior art keywords
heat exchanger
plate body
protrusion
flat tube
exchanger flat
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.)
Abandoned
Application number
US17/312,021
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English (en)
Inventor
Wenjian Wei
Wenyong Ma
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 Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment 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 Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Publication of US20220026152A1 publication Critical patent/US20220026152A1/en
Abandoned legal-status Critical Current

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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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28F3/08—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

Definitions

  • the present disclosure relates to the technical field of heat exchanger flat tubes, and in particular to a heat exchanger flat tube and a heat exchanger with the heat exchanger flat tube.
  • a heat exchanger flat tube in an art known to inventors generally does not have separate liquid inlet portion and liquid outlet portion. Therefore, two ends of the heat exchanger flat tube in the art known to inventors are respectively provided with two collecting tubes, as to respectively deliver a refrigerant into the heat exchanger flat tube or collect the refrigerant.
  • This type of the heat exchanger flat tube in the art is high in cost and large in weight, and mixing of vapor and liquid two phases of the refrigerant is insufficient, so it is not convenient for improving the heat exchange efficiency of the heat exchanger.
  • Some embodiments of the present disclosure provide a heat exchanger flat tube and a heat exchanger with the heat exchanger flat tube, as to solve a technical problem in an art known to inventors that the heat exchanger is higher in cost.
  • a heat exchanger flat tube including a first plate body and a second plate body, the second plate body is fastened to the first plate body.
  • a liquid inlet portion, a throttle portion and a fluid channel are provided between the first plate body and the second plate body.
  • the throttle portion is positioned between the liquid inlet portion and the fluid channel.
  • the liquid inlet portion, the throttle portion and the fluid channel are all communicated. Liquid inside the liquid inlet portion is throttled through the throttle portion and flowed into the fluid channel.
  • the throttling portion includes a first shrinkage groove, and the first shrinkage groove is installed on the first plate body, a flow area of the first shrinkage groove is gradually decreased along a flow direction of the liquid.
  • the throttling portion further includes a second shrinkage groove, and the second shrinkage groove is installed on the second plate body, wherein the second shrinkage groove is installed opposite to the first shrinkage groove, and a flow area of the second shrinkage groove is gradually decreased along the flow direction of the liquid.
  • the liquid inlet portion includes a first protrusion, wherein the first protrusion is installed on the first plate body, the first protrusion is protruded to be installed along a direction away from the second plate body.
  • the liquid inlet portion further includes a second protrusion, wherein the second protrusion is installed on the second plate body, the second protrusion is installed opposite to the first protrusion, and the second protrusion is protruded along a direction away from the first plate body.
  • the first protrusion and/or the second protrusion is provided with a liquid inlet, so that the liquid is delivered to the liquid inlet portion through the liquid inlet.
  • the heat exchanger flat tube further includes a liquid outlet portion between the first plate body and the second plate body, wherein the liquid outlet portion is installed at one end, away from the throttle portion, of the fluid channel, so that a liquid in the fluid channel is discharged through the liquid outlet portion.
  • the liquid outlet portion includes a third protrusion, wherein the third protrusion is installed on the first plate body, and the third protrusion is protruded to be installed along a direction away from the second plate body.
  • the liquid outlet portion further includes a fourth protrusion, wherein the fourth protrusion is installed on the second plate body, the fourth protrusion is installed opposite to the third protrusion, and the fourth protrusion is protruded to be installed along a direction away from the first plate body.
  • the third protrusion and/or the fourth protrusion is provided with a liquid outlet, so that a liquid inside the liquid outlet portion is discharged through the liquid outlet.
  • the liquid inlet portion and/or the liquid outlet portion is provided with a plug-in portion, and the plug-in portion is used for connecting with a part to be connected.
  • the plug-in portion includes a flange, wherein the flange is installed at a side, away from the second plate body, of the first plate body; and the second plate body is provided with an opening, and the opening is installed corresponding to the flange.
  • the fluid channel is internally provided with a turbulence structure, so that a liquid in the fluid channel is turbulated through the turbulence structure.
  • the turbulence structure includes a convex hull; the first plate body is provided with the convex hull, the convex hull is protruded to be installed in a direction adjacent to the second plate body; and/or the second plate body is provided with a convex hull, the convex hull is protruded to be installed in a direction adjacent to the first plate body.
  • the convex hull includes a truncated cone structure.
  • a heat exchanger including a plurality of heat exchanger flat tubes, the plurality of heat exchanger flat tubes are installed at intervals, liquid inlet portions of the plurality of heat exchanger flat tubes are all communicated to form a liquid inlet cavity, and the heat exchanger flat tube is the heat exchanger flat tube provided above.
  • the heat exchanger flat tube is the heat exchanger flat tube provided above, a plug-in portion of one heat exchanger flat tube in the plurality of heat exchanger flat tubes is inserted into another heat exchanger flat tube in the plurality of heat exchanger flat tubes, so that two neighboring heat exchanger flat tubes in the plurality of heat exchanger flat tubes are connected through the plug-in portion of the heat exchanger flat tube.
  • a technical scheme of the present disclosure is applied. Because the liquid inlet portion, the throttle portion and the fluid channel are provided between the first plate body and the second plate body, a fluid medium is directly transported into the heat exchanger flat tube through the liquid inlet portion, herein the fluid medium is mainly the refrigerant.
  • the heat exchanger in the present disclosure does not need to install the corresponding collecting tube, so that the weight of the heat exchanger is reduced, the charge amount of a refrigerator is decreased, and the cost of the heat exchanger is reduced.
  • the heat exchanger flat tube in some embodiments of the present disclosure is provided with the throttle portion, a pressure of the refrigerant entering the fluid channel is improved, so mixing of gas-liquid two-phase refrigerants is more uniform, and distributing of the refrigerant between various flat tubes is more uniform, thereby the heat exchange efficiency is improved. Therefore, technical problems in the art known to inventors that the heat exchanger is higher in cost, and uneven in refrigerant distributing or mixing are solved by using the embodiments provided by the present disclosure.
  • FIG. 1 shows a structure schematic diagram of a heat exchanger flat tube provided in a first embodiment according to the present disclosure
  • FIG. 2 shows a top view of the heat exchanger flat tube provided in the first embodiment according to the present disclosure
  • FIG. 3 shows a bottom view of the heat exchanger flat tube provided in the first embodiment according to the present disclosure
  • FIG. 4 shows a front view of the heat exchanger flat tube provided in the first embodiment according to the present disclosure
  • FIG. 5 shows an A-A view in FIG. 4 ;
  • FIG. 6 shows a structure schematic diagram of a first plate body of the heat exchanger flat tube provided in the first embodiment according to the present disclosure
  • FIG. 7 shows a structure schematic diagram of a second plate body of the heat exchanger flat tube provided in the first embodiment according to the present disclosure
  • FIG. 8 shows a structure schematic diagram of a heat exchanger provided in a second embodiment according to the present disclosure
  • FIG. 9 shows a structure schematic diagram from another angle of the heat exchanger provided in the second embodiment according to the present disclosure.
  • FIG. 10 shows a local structure schematic diagram of the heat exchanger provided in the second embodiment according to the present disclosure.
  • FIG. 11 shows a local structure enlarged diagram in FIG. 10 .
  • the first embodiment of the present disclosure provides a heat exchanger flat tube 90
  • the heat exchanger flat tube 90 includes a first plate body 10 and a second plate body 20 .
  • the second plate body 20 is fastened to the first plate body 10 .
  • a liquid inlet portion 30 , a throttle portion 40 and a fluid channel 50 are provided between the first plate body 10 and the second plate body 20 .
  • the throttle portion 40 is positioned between the liquid inlet portion 30 and the fluid channel 50 .
  • the liquid inlet portion 30 , the throttle portion 40 and the fluid channel 50 are all communicated. Liquid inside the liquid inlet portion 30 is throttled through the throttle portion 40 and flowed into the fluid channel 50 .
  • Both the first plate body 10 and the second plate body 20 in this embodiment are manufactured by using a stamping forming process.
  • the first plate body 10 and the second plate body 20 are both thin metal plates, and the first plate body 10 and the second plate body 20 in this embodiment are made of an aluminum material or a composite aluminum material.
  • the first plate body 10 is installed on the second plate body 20 , there is a certain contact surface between the first plate body 10 and the second plate body 20 , and the contact surface of the first plate body 10 is welded with a corresponding contact surface on the second plate body 20 , as to form the heat exchanger flat tube 90 .
  • the fluid medium is mainly the refrigerant.
  • the heat exchanger in an embodiment of the present disclosure does not need to install the corresponding collecting tube, so that the weight of the heat exchanger is reduced, the charge amount of a refrigerator is decreased, and the cost of the heat exchanger is reduced.
  • an inlet pressure of the refrigerant is improved after the refrigerant entering the liquid inlet portion 30 is throttled by the throttle portion 40 , so mixing of gas-liquid two-phase refrigerants is more uniform, and the refrigerant is conveniently and uniformly distributed to various heat exchanger flat tubes 90 and flowed into the fluid channel 50 through the corresponding throttle portion 40 , thereby the heat exchange efficiency is improved. Therefore, a technical problem in the art known to the inventors that the heat exchanger is higher in cost is solved by using the embodiments of the present disclosure.
  • the throttle portion 40 includes a first shrinkage groove 41 , the first shrinkage groove 41 is installed on the first plate body 10 , and a flow area of the first shrinkage groove 41 is gradually decreased along a flow direction of the liquid.
  • the refrigerant enters the first shrinkage groove 41 after being flowed from the liquid inlet portion 30 . Because the flow area of the first shrinkage groove 41 is gradually decreased, a pressure of the refrigerant flowing into the first shrinkage groove 41 is increased. Correspondingly, the pressure of the refrigerant flowing into the fluid channel 50 is increased, so that the mixing of the gas-liquid two-phase refrigerants is more sufficient.
  • the throttle portion 40 further includes a second shrinkage groove 42 .
  • the second shrinkage groove 42 is installed on the second plate body 20 , and the second shrinkage groove 42 opposites to the first shrinkage groove 41 , and a flow area of the second shrinkage groove 42 is gradually decreased along the flow direction of the liquid.
  • the refrigerant flows in from the liquid inlet portion 30 and a pressure of the refrigerant is improved under a combined action of the first shrinkage groove 41 and the second shrinkage groove 42 , as to further improve the uniformity of the mixing, thereby the heat exchange efficiency is improved.
  • the liquid inlet portion 30 includes a first protrusion 31 , the first protrusion 31 is installed on the first plate body 10 , and the first protrusion 31 is protruded along a direction away from the second plate body 20 .
  • the first protrusion 31 can receive a certain amount of the refrigerant, so that the refrigerant is transported into the fluid channel 50 through the first protrusion 31 .
  • the liquid inlet portion 30 further includes a second protrusion 32 .
  • the second protrusion 32 is installed on the second plate body 20 , the second protrusion 32 is installed opposite to the first protrusion 31 , and the second protrusion 32 is protruded along a direction away from the first plate body 10 .
  • the liquid inlet portion 30 is jointly formed by the first protrusion 31 and the second protrusion 32 , as to better deliver the refrigerant to the fluid channel 50 .
  • the first plate body 10 is installed on the second plate body 20
  • the first protrusion 31 is installed opposite to the second protrusion 32
  • a contact surface at the first protrusion 31 and a contact surface at the second protrusion 32 are welded together, so as to form a sealed liquid inlet cavity, so that the refrigerant is delivered to the fluid channel 50 through the liquid inlet cavity.
  • a liquid inlet 33 may be installed on the first protrusion 31 ; or the liquid inlet 33 is installed on the second protrusion 32 ; or the liquid inlets 33 are simultaneously installed on both the first protrusion 31 and the second protrusion 32 .
  • both the first protrusion 31 and the second protrusion 32 are provided with the liquid inlets 33 respectively.
  • the liquid outlet portion 60 is also a liquid outlet portion 60 between the first plate body 10 and the second plate body 20 .
  • the liquid outlet portion 60 is installed at one end, away from the throttle portion 40 , of the fluid channel 50 , so that liquid inside the fluid channel 50 is discharged through the liquid outlet portion 60 , herein the liquid is mainly the refrigerant.
  • the refrigerant in the fluid channel 50 is discharged without the need to install a collecting tube connected with each heat exchanger flat tube 90 , the weight of the heat exchanger is further reduced, and the charge amount of the refrigerant is also reduced, so the cost of the heat exchanger is further reduced, and a competitive force of a product is improved.
  • the liquid outlet portion 60 includes a third protrusion 61 , the third protrusion 61 is installed on the first plate body 10 , and the third protrusion 61 is protruded along the direction away from the second plate body 20 .
  • There is a certain accommodating space between the third protrusion 61 and the second plate body 20 and the accommodating space is used to accommodate the refrigerant to be discharged, so that the refrigerant is discharged through the third protrusion 61 .
  • the liquid outlet portion 60 further includes a fourth protrusion 62 , the fourth protrusion 62 is installed on the second plate body 20 , the fourth protrusion 62 is installed opposite to the third protrusion 61 , and the fourth protrusion 62 is protruded along the direction away from the first plate body 10 .
  • the liquid outlet portion 60 is jointly formed by the third protrusion 61 and the fourth protrusion 62 , so that the refrigerant in the fluid channel 50 is discharged better.
  • the first plate body 10 is installed on the second plate body 20
  • the third protrusion 61 is installed opposite to the fourth protrusion 62
  • a contact surface at the third protrusion 61 and a contact surface at the fourth protrusion 62 are welded together, as to form a sealed liquid outlet cavity, so that the refrigerant is discharged through the liquid outlet cavity.
  • a liquid outlet 63 is installed on the third protrusion 61 ; or a liquid outlet 63 is installed on the fourth protrusion 62 ; or both the third protrusion 61 and the fourth protrusion 62 are respectively provided with a liquid outlet 63 .
  • the third protrusion 61 and the fourth protrusion 62 are respectively provided with the liquid outlet 63 , so that the liquid in the liquid outlet portion 60 is discharged through the liquid outlets 63 .
  • a plug-in portion 70 is installed on the liquid inlet portion 30 ; or a plug-in portion 70 is installed on the liquid outlet portion 60 ; or both the liquid inlet portion 30 and the liquid outlet portion 60 are respectively provided with plug-in portions 70 .
  • the plug-in portion 70 is used to connect with a part to be connected.
  • the part to be connected is the other heat exchanger flat tube 90 .
  • both the liquid inlet portion 30 and the liquid outlet portion 60 are provided with the plug-in portions 70 , and the plug-in portion 70 is used for inserting into another heat exchanger flat tube 90 , so the multiple heat exchanger flat tubes 90 are superposed through the plug-in portions 70 , and welded.
  • the heat exchanger flat tube 90 in this embodiment is adopted, the collecting tube in the related technology is eliminated, the installation is convenient, and the cost is reduced.
  • the plug-in portion 70 is a flange, and the flange is installed at one side, away from the second plate body 20 , of the first plate body 10 .
  • an opening is installed on the second plate body 20 , and the opening is installed corresponding to the flange.
  • the heat exchanger is installed, the flange on one heat exchanger flat tube 90 is inserted into the opening on another heat exchanger flat tube 90 , and corresponding contact end faces are braze-welded, as to achieve sealing.
  • the liquid inlet 33 and the liquid outlet 63 are used to form the opening. On the one hand, it is convenient for liquid inlet or outlet, and on the other hand, it is also convenient for connecting, and improving overall stability of a device.
  • the fluid channel 50 is internally provided with a turbulence structure, as to turbulate the liquid in the fluid channel 50 through the turbulence structure, so that the heat exchange effect of the refrigerant is improved by turbulence.
  • the turbulence structure includes a convex hull 80 .
  • the convex hull 80 is installed on the first plate body 10 , and the convex hull 80 is protruded to be installed in a direction adjacent to the second plate body 20 ; or, a convex hull 80 is installed on the second plate body 20 , and the convex hull 80 is protruded to be installed in a direction adjacent to the first plate body; or, a convex hull 80 is installed on the first plate body 10 , and the convex hull 80 on the first plate body 10 is protruded to be installed in the direction adjacent to the second plate body 20 , at the same time a convex hull 80 is installed on the second plate body 20 , and the convex hull 80 on the second plate body 20 is protruded to be installed in the direction adjacent to the first plate body 10 .
  • the convex hull 80 is installed on the first plate body 10 , and the convex hull 80 on the first plate body 10 is protruded to be installed in the direction adjacent to the second plate body 20 , at the same time another convex hull 80 is installed on the second plate body 20 , and the convex hull 80 on the second plate body 20 is protruded to be installed in the direction adjacent to the first plate body 10 , so that the refrigerant in the fluid channel 50 is turbulated through the convex hull 80 on the first plate body 10 and the convex hull 80 on the second plate body 20 .
  • the convex hull 80 on the first plate body 10 is abutted against the convex hull 80 on the second plate body 20 , and an abutment place of the first plate body 10 and the second plate body 20 is welded, so that the refrigerant in the fluid channel 50 is flowed around a side wall of the convex hull 80 of the first plate body 10 and a side wall of the convex hull 80 of the second plate body 20 .
  • the convex hull 80 is a truncated cone structure. While the refrigerant is flowed in the fluid channel 50 , the refrigerant is flowed around a side wall of the truncated cone structure after meeting the convex hull 80 , so that the refrigerant is turbulated, thereby the heat exchange effect is improved.
  • the convex hull 80 may also be a circular truncated cone structure or other shapes with equivalent functions.
  • a second embodiment of the present disclosure provides a heat exchanger
  • the heat exchanger includes multiple heat exchanger flat tubes 90
  • the multiple heat exchanger flat tubes 90 are installed at intervals, and liquid inlet portions of the multiple heat exchanger flat tubes 90 are all communicated to form a liquid inlet cavity
  • the heat exchanger flat tube 90 is the heat exchanger flat tube 90 in the first embodiment.
  • An arrow direction in FIG. 11 is the flow direction of the refrigerant.
  • each of the multiple heat exchanger flat tubes 90 includes a plug-in portion 70 , and the plug-in portion 70 of one heat exchanger flat tube 90 in the multiple heat exchanger flat tubes 90 is inserted into another heat exchanger flat tube 90 in the multiple heat exchanger flat tubes 90 , so that two neighboring heat exchanger flat tubes 90 are connected through the plug-in portion 70 of the heat exchanger flat tube 90 .
  • the heat exchanger does not need to be provided with an additional collecting tube, only the liquid inlet portions 30 and the liquid outlet portions 60 of the multiple heat exchanger flat tubes 90 are respectively superposed and connected, the cost is reduced, and an installation process is simplified.
  • the heat exchanger also includes a connection tube 100 .
  • the refrigerant is fed into the liquid inlet portions 30 and the refrigerant in the liquid outlet portions 60 is discharged through the connection tube 100 .
  • the heat exchanger in this embodiment is worked, the refrigerant enters the liquid inlet portion 30 of each heat exchanger flat tube 90 through one connection tube 100 , and enters the corresponding fluid channel 50 through each liquid inlet portion 30 , and then flows into another connection tube 100 from the corresponding liquid outlet portion 60 .
  • the heat exchanger further includes a side plate 110 and a fin 120 . The side plate 110 is installed near the heat exchanger flat tube 90 at the end portion, and the fin 120 is positioned between two neighboring heat exchanger flat tubes 90 .
  • the refrigerant may be conveniently fed or discharged by installing the liquid inlet portion and the liquid outlet portion at the end portion of the heat exchanger, the corresponding collecting tube does not need to be installed, a material of the heat exchanger flat tube is saved, the cost of the heat exchanger flat tube is reduced, and a volume of the heat exchanger flat tube is reduced; and the heat exchanger flat tube is provided with the throttle portion, the inlet pressure of the refrigerant is improved, so the mixing of the gas-liquid two-phase refrigerants is more sufficient, it is convenient for liquid distribution of the heat exchanger flat tube, and the heat exchange effect is improved.
  • an installation mode of the heat exchanger in the present disclosure is simple and the assembly is convenient.

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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)
US17/312,021 2018-12-21 2019-10-28 Heat Exchanger Flat Tube and Heat Exchanger with Heat Exchanger Flat Tube Abandoned US20220026152A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201811574923.2 2018-12-21
CN201811574923.2A CN111351376A (zh) 2018-12-21 2018-12-21 换热器扁管及具有其的换热器
PCT/CN2019/113740 WO2020125205A1 (zh) 2018-12-21 2019-10-28 换热器扁管及具有其的换热器

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CN (1) CN111351376A (zh)
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US11525638B2 (en) 2020-10-19 2022-12-13 Dana Canada Corporation High-performance heat exchanger with calibrated bypass

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