EP3644005A1 - Appareil de transfert de chaleur - Google Patents

Appareil de transfert de chaleur Download PDF

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Publication number
EP3644005A1
EP3644005A1 EP18820718.7A EP18820718A EP3644005A1 EP 3644005 A1 EP3644005 A1 EP 3644005A1 EP 18820718 A EP18820718 A EP 18820718A EP 3644005 A1 EP3644005 A1 EP 3644005A1
Authority
EP
European Patent Office
Prior art keywords
pipe
pipe elements
heat transfer
region
height
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
EP18820718.7A
Other languages
German (de)
English (en)
Other versions
EP3644005A4 (fr
EP3644005B1 (fr
Inventor
Gregus Jan KOLLAR
Josef LAPCIK
Joerg Martini
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Hanon Systems Corp
Original Assignee
Hanon Systems Corp
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Publication of EP3644005A1 publication Critical patent/EP3644005A1/fr
Publication of EP3644005A4 publication Critical patent/EP3644005A4/fr
Application granted granted Critical
Publication of EP3644005B1 publication Critical patent/EP3644005B1/fr
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Classifications

    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end 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
    • 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
    • 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
    • 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
    • F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets

Definitions

  • the present disclosure particularly relates to a heat transfer system for using in a vehicle.
  • heat is preferably transferred between a coolant as a first fluid, for example, water or water-glycol-mixture, and the air as a second fluid.
  • This system has an assembly composed of a pipe element for passing through the first fluid, and one or more pipe bottoms and one or more sealing elements having a through opening for passing through the pipe element, respectively.
  • a coolant-air-heat exchanger known in the related art for transferring heat to the ambient air from a coolant circulation system is used in a so-called high-temperature coolant circulation system for discharging the heat of a combustion engine.
  • the coolant-air-heat exchanger formed from aluminum has few pipes, a multi-disc, and a side element fixed within the pipe bottom, a coolant collector arranged on a crimp connection part has various elements to be assembled for heat exchange.
  • the pipes aligned parallel to each other and arranged as a matrix are used to guide the liquid coolant between the collectors.
  • the coolant collector arranged at both sides on the end portion of the pipe is sealed with respect to the pipe and the pipe bottom by an Ethylene-Propylene-diene-rubber-sealing element simply called as an EPDM-sealing part according to the conventional method.
  • the pipe, the pipe bottom, the multi-disc, and the side element are completed in a completely soldered state as a so-called slot cooler or completed in a completely soldered state as a so-called soldering cooler.
  • CAB Controlled Atmospheric Brazing
  • MA Mechanical Assembly
  • the air absorbing heat from the coolant flows through the outer surface of the pipe, and therefore, flows between the pipes.
  • the multi-disc or a rib arranged between the pipes on the outer surface is used for enlarging an air-side heat transfer surface, and therefore, is used for increasing the output of the heat exchanger.
  • a known coolant-air-heat exchanger has unsatisfactory durability against the quickly changing temperature of the coolant. Therefore, the coolant-air-the heat exchanger can be cooled to the temperature within a range of -20°C to -10°C in the extreme application examples, and operated by the coolant having the temperature of about 120 °C due to the quickly opened valve within the coolant circulation system. At this time, the coolant-air-heat exchanger undergoes a very strong change in temperature, and experiences thermal shock. A very large material stress appears due to the thermal expansion time-displaced of the individual pipe.
  • the slot cooler has a very high resistance capability against the change in temperature of the coolant due to the sliding bearing-connection between the pipe as the element of the collector and the pipe bottom, but has cooling performance smaller than that of the soldering cooler because of the connection of the forced coupling method between the pipe and the multi-disc.
  • the soldering cooler has the limited durability against the change in temperature and the thermal expansion of the individual pipe caused thereby due to the rigid soldering connection between the pipe and the pipe bottom again.
  • DE 10 2015 113 905 A1 discloses a method for manufacturing and mounting a heat exchanger having a collector mechanically mounted for using in a vehicle, particularly, an air flow-heat exchanger and the heat exchanger.
  • This heat exchanger includes a matrix completely bonded mechanically from a plurality of metal pipes and a plurality of metal ribs arranged in parallel.
  • the pipe has a heat transfer section having a straight-type lateral cross-sectional shape with two longer side surfaces and shorter side surfaces disposed to face each other, respectively.
  • one or more pipes are connected with the first collector by one or more flexible elements extended by a first end portion section of the pipe in the first end portion section.
  • the synergy of the methods for manufacturing the slot cooler and the soldering cooler is described.
  • the temperature exceeding 600 °C during soldering within a soldering oven is provided, such that the pipe cannot withstand permanently the resistance force provided by the sealing by the press fit in the end portion region, particularly, according to the demand to assure a sealing device through the entire circumference of the pipe.
  • the conventional pipe of the heat exchanger used in the vehicle cannot often withstand the sealing pressure acting on the wall of the pipe after the compression of the sealing part between the pipe and the pipe bottom.
  • the heat exchanger known in the related art and the method for manufacturing the heat exchanger are limited to the use of the pipe having the width or the depth of about 11mm at maximum, particularly, the welded pipe.
  • the sealing part should be compressed within a range of 10% to 50% through the entire circumference of the pipe, and in this case, the compressed sealing part causes the situation where the unsupported wide wall of the pipe can be collapsed, particularly, due to the force applied to the wall of the pipe.
  • the compression of the sealing part is placed in the central region of the wall of the pipe, that is, is often placed below a target value described above within the region of the pipe crown.
  • An object of the present disclosure is to provide a system for efficiently transferring heat between two fluids, particularly, between the liquid-phase fluid as a coolant and the air, and in addition, to constitute the system as intended.
  • a heat exchanger should have the sufficient and uniform compressed state and the maximum sealing state, that is, the high thermal shock durability of a sealing part through the entire circumference of the pipe, respectively, even when a change in temperature is large.
  • the maximum heat output should be transferred at the minimum size of structure or at the demand for the minimum installation space.
  • the heat exchanger should have the minimum weight, and cause the minimum manufacturing cost and material cost.
  • the object is achieved by a system according to the present disclosure for transferring heat between a first fluid and a second fluid.
  • the system has an assembly composed of one or more pipe bottoms having a through opening and one or more sealing elements having a through opening, and pipe elements for passing through the first fluid.
  • the pipe elements arranged in a state having passed through the through opening, respectively, can be formed of a flat pipe having a first region having a first height X and a depth W, and one or more second regions having a support surface for sealing and fixing on the pipe bottom having a second height Y and arranged on one end portion of the pipe element, respectively.
  • the pipe elements have a heat transfer region circulated by the second fluid, particularly, the air in the first region, and preferably has a region connected with the pipe bottom in the second region.
  • the sealing element is arranged between the support surface of the pipe element and the edge of a through opening of the pipe bottom, and has a specific wall thickness G, respectively.
  • One or more pipe bottoms having the through opening are connected with the pipe elements in the fluid sealing method by the sealing element intermediate-supported.
  • the through openings of the pipe bottom and the sealing element are matched to each other in the shape, respectively, and also matched with the outer shape of the pipe element.
  • one pipe element is preferably present in a state having passed through the through opening, respectively, such that each end portion of one pipe element is accurately assigned with one through opening.
  • the pipe elements have a wide side to be aligned parallel to each other and at an interval F with respect to each other in the first region, respectively.
  • a web having a predetermined height H can also be provided one by one between the through openings arranged adjacent to each other of the pipe bottom, respectively.
  • the CM refers to the deformation degree of the end portion of the pipe element in the height direction, and is placed in a range between the maximum value CM max and the minimum value CM min .
  • the deformation limitation CM max is specified as the maximum value
  • the deformation limitation CM min is specified as the minimum value, such that the CM as a parameter describes the deformation suitable for the end portion of the pipe element formed for the purpose of securing the firm and reliable sealing of the pipe element of the circumference with respect to the sealing element surrounding the peripheral within a press fit.
  • the pipe element can be preferably made of metal.
  • the lateral cross section of the pipe element is preferably expanded within the second region on the plane aligned vertically with respect to the vertical direction.
  • the flow lateral cross section of the pipe element is limited by two side surfaces disposed to face each other, respectively, and these side surfaces form the narrow side or the vertical side of the flow lateral cross section in pair, respectively.
  • the side surfaces of the pipe element arranged adjacent to each other are aligned vertically with respect to each other at the contact edges proceeding in the vertical direction.
  • the contact edges have a transition part round-processed having an edge radius R, respectively.
  • the first height X of the first region of the pipe element is preferably greater than a value of two times the edge radius R of the pipe element.
  • the characteristic of the geometrical structure and material enables the maximum deformation, particularly, the expansion of the end portion of the pipe until when the deformation according to the tensile limitation of the material of the pipe element causes the crack of the material.
  • the side surfaces arranged at the vertical side of the flow lateral cross section of the pipe element, respectively, are connected to each other through the side surface of the narrow side bent outwards in the semicircle hollow cylinder shape and having the outer radius R.
  • the first height X of the first region of the pipe element preferably corresponds to two times the radius R of the side surface of the narrow side of the pipe element bent outwards in the semicircle hollow cylinder shape.
  • One advantage of the present disclosure is that the flow channel limited by the wall of the pipe element is substantially deformed from the rectangular lateral cross section shape into the elliptical lateral cross section shape, when the lateral cross section of the second region of the pipe element is expanded on the plane aligned vertically with respect to the vertical direction.
  • the pipe element has the wall thickness of 0.22mm, the first height X of about 2.5mm, and the width W of about 10.8mm in the first region, and has the second height Y of about 4.69mm and the width of about 10.95mm in the second region.
  • the pipe element on the end portion of the pipe is formed in a state expanded starting from the front in the region of an apex of the vertical side, respectively, such that the wall of the pipe element is deformed to have a molding part outwards in the height direction, respectively. Therefore, the pipe element is formed to have the shape in the region of the apex of the upper surface and the lower surface, respectively.
  • the pipe element preferably has an extension part of about 7.6mm in the maximally expanded region of the molding part in the height direction.
  • the pipe bottom can have a ring element for at least locally reducing the opened lateral cross section of the through opening for receiving the sealing element in the region of the web, respectively.
  • Another preferred embodiment of the present disclosure can form the pipe bottom as the sidewall element of a collector of the heat transfer system.
  • the heat transfer system can preferably form to have two pipe bottoms having the through opening and two sealing elements having the through opening.
  • the pipe bottoms are connected with the pipe elements in the fluid sealing method, respectively, and in this case, the through openings coincide with the outer shape of the pipe element in the shape, respectively, and the respective pipe elements are arranged to have a first end portion passing through the through opening formed on a first pipe bottom and a second end portion passing through the through opening formed on a second pipe bottom, respectively.
  • the pipe elements are preferably formed in a straight line and preferably made of an aluminum alloy.
  • the pipe elements are aligned by one column or a plurality of columns inside an arrangement.
  • the pipe elements of one column of the system according to the present disclosure aligned side by side and parallel to each other, and to have a wide side with respect to each other are preferably arranged so that the flow path for the second fluid, particularly, the air, is directly formed one by one between the pipe elements arranged adjacent to each other, respectively.
  • a multi-disc or a rib for changing the flow lateral cross section and/or expanding a heat transfer area is preferably arranged within the flow path formed inside the first region by the pipe elements arranged adjacent to each other.
  • the multi-disc has an extension part in the height direction, and the extension part corresponds to the interval F of the pipe elements arranged adjacent to each other.
  • the multi-disc or the rib is preferably made of an aluminum alloy.
  • a preferred embodiment of the present disclosure can allow the heat transfer system to be used as a coolant-air-heat exchanger within a coolant circulation system, particularly, within an engine coolant circulation system, of a vehicle.
  • the heat transfer system according to the present disclosure has various advantages as follows.
  • the use of CAB/MA-manufacturing principle can be expanded within the frame of the conventional pipe portfolio, when the size of the structure is the minimum or the demand for the installation space is the minimum, that is, when a ratio of the opened volume to the transferable heat output is optimum, the maximum heat output can be transferred even by a optimum ratio of the geometrical structure.
  • the maximum sealing that is, the high thermal shock durability and the high resistance capability against the change in temperature even when the change in temperature is large, such that the high opening speed and closing speed of the valves are possible within the fluid circulation system, particularly, within the coolant circulation system when the connection between the pipe element, the sealing element, and the pipe bottom is flexible, the use is secured even when the pressure pulsation load is high, and the connection of the end portion of the pipe inside the pipe bottom and the sealing element is permanently secured by the press fit executing the uniform sealing compression at the specified level, such that the maximum lifespan is secured.
  • FIG. 1 shows a pipe element 3 having a pipe bottom 5 and a sealing element 7 of a heat transfer system 1, particularly, an arrangement 2 of a flat pipe.
  • the heat transfer system 1 having the arrangement 2 including a pipe element 3 having a multi-disc 4 intermediate-supported, the pipe bottom 5, the sealing element 7, and a collector 9 is specifically shown.
  • the collector 9 is also called as a coolant collector when coolant is used as fluid.
  • the arrangement 2 formed of the flat pipe 3 is formed in one column or a plurality of columns according to the output demand condition, and is adjustable in terms of size, that is, in terms of the length or the width, particularly.
  • the pipe element 3 is arranged in two columns.
  • the pipe element 3 aligned side by side and parallel to each other is aligned with respect to each other inside one column having a wide side, such that the flow path for fluid, particularly, the air, is directly generated between the pipe elements 3 adjacent to each other, respectively. At this time, the flow path proceeds between the pipe elements 3, respectively.
  • the pipe elements 3 of one column are arranged in the same line with respect to each other, and extended between two collectors 9, respectively.
  • the inner volume of the pipe element 3 is connected with the inner volume of the collector 9.
  • an element for changing the flow lateral cross section and/or expanding the heat transfer area is formed.
  • the element for changing the flow lateral cross section and/or expanding the heat transfer area the multi-disc 4 is provided.
  • a rib can also be used.
  • the multi-disc 4 is preferably formed in a material having the excellent heat conductivity such as an aluminum alloy like the pipe element 3.
  • the pipe bottom 5 which can be used even as the sidewall element of the collector 9 is provided at the front or the narrow side of the arrangement 2, respectively.
  • the side surface on which the end portion of the pipe element 3 has been aligned is called as a front.
  • the pipe bottom 5 is made of metal, particularly, an aluminum alloy, respectively, as a deep drawing part, a perforation part or a hydrofoaming part, which are substantially the form of the rectangular-shaped sheet.
  • the sheet is understood as a flat final product of a rolling mill made of metal.
  • the hydrofoaming also called as high-pressure deformation is regarded as deforming the sheet within the closed mold tool by using the pressure generated within the tool by the water-oil-emulsion.
  • the sealing element 7 as well as the pipe bottom 5 on which the edge region has been round-processed also has the through openings 6, 8 for receiving the pipe element 3.
  • the through opening 6 of the pipe bottom 5 and the through opening 8 of the sealing element 7 are matched to each other, and also matched with the outer dimension of the pipe element 3.
  • a web 5-1 is formed between the through openings 6 of the pipe bottom 5, respectively.
  • the pipe bottom 5 arranged at the side facing each other of the collector 9 is fixedly connected with the pipe element 3.
  • the fixing connection can be regarded as the zero-leakage technically sealed by the sealing element 7, respectively.
  • the pipe bottom 5 is aligned vertically with respect to the pipe element 3 at the narrow side of the pipe element 3 to be arranged on the arrangement 2.
  • FIG. 2A is a side diagram showing the pipe element 3 formed of the flat pipe having a first region 10 not deformed as a heat transfer region, a second region 11 not deformed as a deformation region, and a connection part with the pipe bottom 5.
  • the regions 10, 11 of the pipe element are formed in a state connected to each other when viewing in the vertical direction a.
  • the pipe element 3 is expanded and deformed at least partially on the end portion of the pipe.
  • the lateral cross section of a flow channel surrounded by the wall of the pipe element 3 is expanded constantly and uniformly between the first region 10 circulated by the fluid and the second region 11 facing the end portion side of the pipe.
  • the cross-sectional area of the flow channel is constant inside the regions 10, 11, respectively.
  • the second region 11 of the pipe element 3 is preferably used as a support surface for the sealing element 7 formed flatly, that is, without a structure such as a notch or a groove, respectively.
  • the pipe element 3 has an outer extension part X also called as the height X of the first region 10 when viewing in the height direction c within the first region 10 not deformed.
  • the second region 11 of the pipe element 3, which has been expanded at least partially, is formed by an outer extension part Y also called as the height Y of the second region 11 when viewing in the height direction c.
  • the width of the pipe element 3 is extended in the depth direction b, respectively.
  • FIGS. 2B and 2D perspective diagrams showing the pipe elements 3a, 3b having different flow lateral cross sections and formed of the flat pipe are shown, respectively.
  • one end surface of the first region 10 not deformed of the pipe elements 3a, 3b are shown, respectively.
  • the flow lateral cross section is extended within the plane set by the depth direction b and the height direction c.
  • the flow lateral cross-sections are limited by two side surfaces placed to face each other, respectively, and these side surfaces form the narrow side or the vertical side of the flow lateral cross section, respectively.
  • the side surfaces formed to face each other in pair have the same dimension, respectively.
  • the side surfaces of the narrow side as a first pair in the height direction c have the same height X
  • the side surfaces of the vertical side as a second pair in the depth direction b aligned parallel to each other have the same width W.
  • FIGS. 3A and 3B A substantial difference between FIGS. 3A and 3B is the dimension of the height X, the shape of the transition part between the side surfaces adjacent to each other or the shape of the side surface of the narrow side.
  • a pipe element 3a of FIG. 2B is formed to have the transition part round-processed on the side surface aligned vertically with respect to each other.
  • the transition part has the edge radius R, and this situation is particularly shown in the diagram specifically showing the pipe element 3a of FIG. 2C .
  • the side surfaces arranged, respectively, at the vertical side of the flow cross section of a pipe element 3b shown in FIG. 2D is connected to each other through the side surface of the semicircle hollow cylinder shape of the narrow side, respectively.
  • the outer radius R of the side surface corresponds to a half of the height X.
  • FIGS. 3A and 3B are diagrams specifically showing the arrangement 2 of the pipe element 3 having the multi-disc 4 intermediate-supported of the heat transfer system 1 shown in FIG. 1 .
  • FIG. 3A shows a side diagram
  • FIG. 3B a diagram specifically showing the arrangement 2 shown in FIG. 3A is shown as a side cross-sectional diagram in a state expanded by the pipe bottom 5 and the sealing element 7.
  • the pipe element 3 is formed by the height X in the first region 10, respectively, and by the height Y in the second region 11, respectively, and in this case, the extension part of the pipe element 3 is smaller within the first region 10 than within the second region 11 when viewing in the height direction c.
  • the pipe element 3 is uniformly expanded to the circumference of the central axis aligned in the vertical direction a within the second region 11.
  • the multi-disc 4 is provided as the element for changing the flow lateral cross section and/or expanding the heat transfer area.
  • the multi-disc 4 connected with the pipe element 3, respectively, at the wide side of the pipe element 3 arranged adjacent to each other completely fills the intermediate space between the pipe elements 3, such that the interval F of the pipe element 3 arranged adjacent to each other also corresponds to the height F of the multi-disc 4 when viewing in the height direction c.
  • the multi-disc 4 is formed only within the first region 10 of the pipe element 3.
  • the pipe element 3 has the second region 11, respectively, and is arranged within the through openings 6, 8 of the sealing element 7 and the pipe bottom 5.
  • the web 5-1 is formed between the through opening 6 of the pipe bottom 5 arranged adjacent to each other in the height direction c, and this web limits the through opening 6 in the depth direction b, respectively, and substantially contacts the wide side of the pipe element 3 in a state connected with the sealing element 7.
  • FIG. 3C a diagram specifically showing the web 5-1 of the pipe bottom 5 having the sealing element 7 shown in FIG. 3B is shown.
  • the web 5-1 of the pipe bottom 5 and the sealing part 7 are arranged. Therefore, the intermediate space between the pipe elements 3 arranged adjacent to each other when viewing the height direction c is completely filled by one web 5-1 and two sections of the sealing part 7. When viewing in the height direction c, the web 5-1 is formed at the height H, while the two sections of the sealing element 7 have the wall thickness G, respectively.
  • the extension part of an unit composed of the pipe element 3 and the multi-disc 4 is appeared from a value obtained by adding the height X of the pipe element 3 to the height F of the multi-disc 4 in the height direction c.
  • the extension part of an unit composed of the pipe element 3, the sealing element 7, and the web 5-1 of the pipe bottom 5 is appeared from a value obtained by adding the height Y of the pipe element 3 to the height H of the web 5-1 and two times the wall thickness G of the sealing part, and this situation induces the following equation.
  • X + F Y + H + 2 ⁇ G
  • CM in the equation refers to the optimum range of the difference between the height H of the web 5-1 of the pipe bottom 5 as the extension part in the height direction c formed between the adjacent through openings 6 of the pipe bottom 5 and the height F of the multi-disc 4, and the deformation degree of the end portion of the pipe element 3 in the height direction c.
  • Equations 4 to 6 a range between the maximum value CM max at which the deformation of the end portion of the pipe of the pipe element 3 induces the circular flow lateral cross section and the minimum value CM min at which the end portion of the pipe of the pipe element 3 is not deformed is indicated.
  • CM max 2 ⁇ R + 2 W ⁇ 2 R + 2 X ⁇ 2 R A / ⁇ ⁇ X + 2 ⁇ G
  • CM max X ⁇ + 2 W ⁇ X A / ⁇ ⁇ X + 2 ⁇ G
  • the parameter A describes the expansion capacity of the pipe as a ratio of the circumference of the pipe element at the end portion of the pipe after deformation to the circumference of the pipe element at the end portion of the pipe before deformation.
  • FIGS. 4A and 4B are a perspective diagram and a plane diagram showing the pipe element 3 expanded at least partially from the end portion of the pipe similar to the pipe element 3a shown in FIG. 2A or FIGS. 2B and 2C , respectively.
  • the pipe element 3 is deformed and expanded in the region of the end portion of the pipe, such that the flow channel limited by the wall of the pipe element 3 has been substantially deformed from the rectangular lateral cross-sectional shape into the elliptical lateral cross-sectional shape.
  • the elliptical lateral cross-sectional shape of the flow channel is very stable against the outer pressure, and particularly, is very stable against the pressure provided by the compressed sealing element 7.
  • the pipe element 3 not deformed has been formed at the wall thickness of 0.22mm, the width W of about 10.8mm, and the height X of 2.5mm.
  • the pipe element 3 expanded at least partially has the height of about 4.69mm when the width is about 10.95mm in the second region 11, for example, in the region of the maximum extension part Y.
  • the second region 11 is formed as the support surface 13 having the indicated dimension, and the support surface contacts the wall of the pipe element 3 on the pipe bottom 5 or on the sealing element 7 compressed between the pipe element 3 and the pipe bottom 5.
  • the pipe element 3 In order to withstand the resistance of the compressed sealing element 7, the pipe element 3 is finally expanded in the region of an apex 12. In this case, in order to further increase the rigidity of the support surface 13 with respect to the sealing element 7, the wall of the pipe element 3 is deformed outwards from the vertical side. In a state finally deformed, particularly, the structure of the wall of the pipe element 3 is reinforced at the vertical side.
  • FIGS. 4C to 4F are a perspective diagram and a plane diagram showing the pipe element 3 finally expanded from the end portion of the pipe.
  • the pipe element 3 is finally expanded starting from the front in the already deformed region of the end portion of the pipe, respectively.
  • the edges of the upper surface and the lower surface are deformed outwards in the height direction c, respectively.
  • the apex 12 of the pipe element 3 is expanded with respect to the sealing element 7 in the second region 11, and the compression of the sealing element 7 is increased.
  • the flexible material of the pipe is minimally restored in shape in the direction of the starting position, and in this case, the compression of the sealing material 7 is kept within a predetermined range as it is.
  • the pipe element 3 has a molding part 14 in the region of the apex 12 of the upper surface and the lower surface, respectively.
  • the wall of the pipe element 3 deformed on the end portion of the pipe is formed continuously and without crack by the molding part 14.
  • the shape of the molding part 14 is used to increase the structural rigidity of the wall of the pipe element 3, and on the another hand, is used for fixing and sealing inside the through opening 6 within the pipe bottom 5. In this case, a change in relative position of the pipe element 3 with respect to the pipe bottom 5 and in addition, a fixing force of avoiding the movement of the pipe element 3 inside the pipe bottom 5 are also increased.
  • the system 1 formed to have the pipe element 3 also has a very high thermal shock-durability due to the pipe element-sealing element-pipe bottom-connection, which is flexible and not rigid, formed on one or more side surfaces of the arrangement 2.
  • FIGS. 5A and 5B are a perspective diagram showing the pipe element 3 having the elliptical lateral cross section similar to the pipe element shown in FIG. 4A and a plane diagram in the operating direction of the pressure 15 provided from the outside. The pressure is generated by the sealing element contacting through the entire range, which is not shown in the drawing.
  • the surface of the arc shape of the narrow side of the deformed end portion of the pipe element 3 has a diameter smaller than the end portion of the pipe element 3 shown in FIG. 4A .
  • the wall of the pipe element 3c has been formed to have a thicker lateral cross section formed in the elliptical shape, which withstands the pressure provided from the outside more excellently.
  • the pipe element 3 can also be formed by a combination of the structural features such as the elliptical shape of the lateral cross section on the end portion of the pipe according to FIG. 5A and the deformation of the end portion of the pipe having the molding part 14 in the region of the apex 12 of the upper surface and the lower surface according to FIGS. 4C to 4F .
  • FIG. 6A is a side cross-sectional diagram specifically showing the arrangement of the pipe element 3 within the through opening 6 of the pipe bottom 5 having the sealing element 7.
  • FIG. 6B is a diagram specifically showing the pipe bottom 5 having the sealing element 7 and the pipe element 3 shown in FIG. 6A .
  • FIG. 6A particularly shows the arrangement of the deformed and expanded pipe element 3 preferably having the elliptical lateral cross section arranged by passing through the through opening formed within the pipe bottom 5 and the sealing element 7. Due to the expansion of the pipe element 3, the pipe element 3 is firmly connected with the sealing element 7 arranged between the pipe element 3 and the edge of the through opening of the pipe element 3, and connected with the pipe bottom 5 in the fluid sealing method.
  • the pipe bottom 5 is formed to have a ring element 17 in a region 16 of the web 5-1, respectively, and this ring element at least locally reduces the opened lateral cross section of the through opening 6 for receiving the sealing element 7 and the pipe element 3.
  • the ring element 17 is formed so that the compression of the sealing element 7, in which the sealing element 7 is additionally compressed on a predetermined section or a predetermined surface, such that otherwise, the compression is less particularly in the region of the apex of the pipe element 3, increases as intended.
  • the compression is stronger only in a region where the sealing element 7 is small, the final force acting on the wall of the pipe is smaller, and the wall of the pipe is not collapsed.
  • the system 1 can be formed by any combination of the structural features of the pipe element 3 such as the elliptical shape of the lateral cross section on the end portion of the pipe according to FIG. 5A and the deformation of the end portion of the pipe having the molding part 14 in the region of the apex 12 of the upper surface and the lower surface according to FIGS. 4C to 4F , and by providing the ring element 17 in the region of the web 5-1 of the pipe bottom 5.
  • connection between the pipe bottom 5 and the pipe element 3 is secured so that the pipe element 3 is arranged at the accurate position of the through openings 6, 8 and therefore, so that the reliable connection part of the fluid sealing method is generated.
  • the intended size of the expansion is previously determined as a final extension part of the pipe element 3.
  • the compression of the sealing element 7 is placed within a range of 10% to 50%, and in this case, the compression is mostly achieved immediately after mounting the sealing element 7 and the pipe bottom 5 on the pipe element 3.
  • the present disclosure particularly relates to the heat transfer system for using in the vehicle.
  • heat is preferably transferred between coolant as the first fluid, for example, water or water-glycol-mixture and the air as the second fluid.
  • This system has an assembly composed of a pipe element for passing through the first fluid, and one or more pipe bottoms and one or more sealing elements having a through opening for passing through the pipe element, respectively.

Landscapes

  • 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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP18820718.7A 2017-06-22 2018-06-07 Appareil de transfert de chaleur Active EP3644005B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017113870 2017-06-22
DE102018111580.6A DE102018111580A1 (de) 2017-06-22 2018-05-15 Vorrichtung zur Wärmeübertragung
PCT/KR2018/006435 WO2018236076A1 (fr) 2017-06-22 2018-06-07 Appareil de transfert de chaleur

Publications (3)

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EP3644005A1 true EP3644005A1 (fr) 2020-04-29
EP3644005A4 EP3644005A4 (fr) 2021-02-17
EP3644005B1 EP3644005B1 (fr) 2024-05-29

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EP18820718.7A Active EP3644005B1 (fr) 2017-06-22 2018-06-07 Appareil de transfert de chaleur

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US (1) US20210095926A1 (fr)
EP (1) EP3644005B1 (fr)
JP (1) JP6948461B2 (fr)
KR (1) KR102080801B1 (fr)
CN (1) CN110770527B (fr)
DE (1) DE102018111580A1 (fr)
WO (1) WO2018236076A1 (fr)

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US20210278147A1 (en) * 2020-03-05 2021-09-09 Uchicago Argonne, Llc Additively Manufactured Modular Heat Exchanger Accommodating High Pressure, High Temperature and Corrosive Fluids

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929994A (ja) * 1982-08-11 1984-02-17 Ntn Toyo Bearing Co Ltd 熱交換器
FR2786558B1 (fr) * 1998-11-30 2001-02-02 Valeo Thermique Moteur Sa Tube plat pour echangeur de chaleur de largeur reduite
DE10123675B4 (de) * 2001-05-16 2019-05-29 Mahle International Gmbh Wärmeübertrager
DE10147192A1 (de) * 2001-09-25 2003-04-17 Modine Mfg Co Wärmeaustauscher mit einem Rippen-Flachrohr-Block und Herstellungsverfahren
US20030131981A1 (en) * 2002-01-15 2003-07-17 Kohler Gregory T. Tank and cap assembly for use with microchannel tubing in a heat exchanger
DE102004036020A1 (de) * 2004-07-23 2006-02-16 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kondensator
TW200710364A (en) * 2005-07-15 2007-03-16 Dsm Ip Assets Bv Automotive heat exchanger
EP1744117A1 (fr) * 2005-07-15 2007-01-17 DSM IP Assets B.V. Collecteur pour échangeur de chaleur
JP4724594B2 (ja) * 2006-04-28 2011-07-13 昭和電工株式会社 熱交換器
KR20080032472A (ko) * 2006-10-10 2008-04-15 한라공조주식회사 일체형 열교환기
CN101614492A (zh) * 2009-06-15 2009-12-30 浙江康盛股份有限公司 微通道冷凝器
CN201926203U (zh) * 2011-01-18 2011-08-10 三花丹佛斯（杭州）微通道换热器有限公司 一种换热器
JP2013108686A (ja) * 2011-11-22 2013-06-06 Mdi Corp シェルアンドチューブ熱交換器
US10317142B2 (en) * 2014-08-25 2019-06-11 Hanon Systems Heat exchanger having a mechanically assembled header
FR3081984A1 (fr) * 2018-05-31 2019-12-06 Valeo Systemes Thermiques Boite collectrice et echangeur thermique correspondant

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DE102018111580A1 (de) 2018-12-27
JP6948461B2 (ja) 2021-10-13
CN110770527B (zh) 2021-12-10
JP2020521109A (ja) 2020-07-16
KR102080801B1 (ko) 2020-02-24
KR20190000288A (ko) 2019-01-02
EP3644005A4 (fr) 2021-02-17
CN110770527A (zh) 2020-02-07
US20210095926A1 (en) 2021-04-01
EP3644005B1 (fr) 2024-05-29
WO2018236076A1 (fr) 2018-12-27

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