WO2016016143A1 - Échangeur de chaleur et procédé de fabrication de l'échangeur de chaleur - Google Patents

Échangeur de chaleur et procédé de fabrication de l'échangeur de chaleur Download PDF

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Publication number
WO2016016143A1
WO2016016143A1 PCT/EP2015/067057 EP2015067057W WO2016016143A1 WO 2016016143 A1 WO2016016143 A1 WO 2016016143A1 EP 2015067057 W EP2015067057 W EP 2015067057W WO 2016016143 A1 WO2016016143 A1 WO 2016016143A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
accumulator
coil
heat exchanger
helix
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/EP2015/067057
Other languages
German (de)
English (en)
Inventor
Uwe FÖRSTER
Wolfgang Geiger
Christoph Kästle
Andreas König
Karl-Gerd Krumbach
David Mayor Tonda
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Priority to EP15742244.5A priority Critical patent/EP3175195B1/fr
Publication of WO2016016143A1 publication Critical patent/WO2016016143A1/fr
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
    • 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
    • F28D1/06—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 the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0472—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 bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
    • 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
    • F28D1/047—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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0472—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 bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
    • F28D1/0473—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 bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0016—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being bent
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/051—Compression system with heat exchange between particular parts of the system between the accumulator and another part of the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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
    • 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

Definitions

  • the invention relates to a heat exchanger for cooling a fluid, with an accumulator, a housing and a helix-shaped tube, wherein between the accumulator and the housing, a gap is formed, in which the tube formed into a helix is arranged. Moreover, the invention relates to a method for manufacturing a heat exchanger.
  • refrigerant R-134a is no longer permitted for use in air conditioning systems in the future.
  • refrigerant R-744 C0 2
  • the refrigerant R-744 is much more environmentally friendly compared to R-134a and still allows for a higher cooling capacity with a comparable volume of the air conditioning system.
  • COP Coefficient of Performance
  • a so-called internal heat exchanger is additionally used in air conditioning systems, wherein the refrigerant in this internal heat exchanger is further cooled by a heat transfer between the refrigerant tel on the low pressure side of the refrigerant circuit and the warmer refrigerant on the high pressure side of the refrigerant circuit takes place.
  • EP 2 136 160 A2 shows a heat exchanger and a method for producing the heat exchanger.
  • the heat exchanger has a collector, which is arranged in a housing. Between the housing and the collector, a coiled tubing is arranged. To create a contact between the coiled tubing, the collector and the housing, a hydroforming process is used, whereby the coiled tubing is widened and comes into abutment with the collector and the housing.
  • an air conditioner which has an internal heat exchanger.
  • the internal heat exchanger is combined with the condenser.
  • the inner heat exchanger on a coiled tubing which is arranged between a collector and a housing.
  • a disadvantage of the devices in the prior art is in particular that the tube which carries the refrigerant on the high pressure side is either only flows around the refrigerant on the low pressure side or reaches the generation of a defined counterflow between the refrigerant of the high pressure side and the low pressure side by consuming manufacturing processes becomes.
  • the generation of leaks can lead to a drastic reduction in the efficiency of the heat exchanger.
  • An embodiment of the invention relates to a heat exchanger for cooling a fluid, comprising a rechargeable battery, a housing and a helix-shaped tube, wherein between the accumulator and the housing, a gap is formed, in which the helix-shaped tube is arranged, wherein a frictional connection is formed between the housing and the helix, wherein the non-positive connection is produced by a plastic deformation of the housing.
  • a frictional connection between the housing and the helix is particularly advantageous in order to prevent the helix from flowing uncontrolled along its turns.
  • gaps between the coil and the housing leakage currents can occur, which adversely affect the efficiency of the heat exchanger.
  • Particularly advantageous is the generation of a frictional connection by a plastic deformation of the housing.
  • a compression of the housing is advantageous, by which the diameter of the housing is reduced, whereby an investment of the helix is generated on the housing.
  • both the housing and the helix is plastically deformed, whereby a frictional connection is generated both between the accumulator and the helix and between the housing and the helix.
  • This is particularly advantageous in order to produce a fluid-tight as possible flow channel, along which a Fiuidstrom can flow along the helix.
  • the housing is hereby compressed until it rests against the coil.
  • the force component then continues to act on the housing, so that the housing is further compressed until the coil undergoes a compression.
  • the helix is advantageously plastically deformed by a compression until it comes into a frictional connection with the accumulator as a result of a reduction in the diameter.
  • plastic deformation is generated by a radially inwardly acting force component on the housing.
  • a radial direction is always meant a direction which is normal to the central axis of the heat exchanger.
  • axial direction is meant a direction along the center axis of the heat transfer.
  • a preferred embodiment is characterized in that the accumulator, the helix and the housing are cylindrical.
  • a cylindrical configuration of the accumulator, the helix and the housing is advantageous in order to achieve a uniform and circumferential compression of the individual elements along the circumferential direction. In alternative embodiments, however, oval cross-sections or square cross-sections of the elements may also be provided.
  • the application of the force component is preferably adapted to the respective cross-sections of the elements in order to generate a frictional connection that completely revolves in the circumferential direction. By an unadjusted application of the force component, it may, for example, come to corrugations and bulges of the elements, whereby a fluid-tight formation of a flow channel between the coil and the accumulator or the housing is prevented.
  • a helical flow channel is formed between the accumulator and the housing through the helix, through which a fluid can be flowed in the circumferential direction with a gradient that can be predetermined by the turns of the helix.
  • the helical flow channel is advantageously formed by the spaces formed between the individual windings. By formed in the helix pitch and the free spaces get a slope, which also represents the slope of the resulting flow channel at the same time.
  • In the radial direction of the flow channel is completed by the system of the housing inner wall on the radially outwardly directed side of the coil and by the system of the outer wall of the accumulator on the radially inwardly directed side of the coil.
  • the individual turns of the helix are formed spaced apart in the axial direction. By spacing the turns to each other in the axial direction, the free spaces between the turns, which form the flow channel arise.
  • the size of the free spaces is determined mainly by the selected slope of the individual turns.
  • the individual turns may also have diverging pitches, whereby along the axial direction of the helix arise different sized free spaces.
  • the tube from which the helix is formed has a round cross section or an oval cross section or an angular cross section.
  • An oval tube may be particularly advantageous when the broad sides of the tube extend in a radial direction, while the narrow sides extend in the axial direction.
  • the tube has an inner ribbing and / or an outer ribbing.
  • Taps are advantageous in order to achieve a targeted influencing of the fluids flowing through the heat exchanger.
  • the generation of a turbulent flow is advantageous in order to increase the heat transfer.
  • the object with regard to the method is achieved by a method having the features of claim 9.
  • An embodiment of the invention relates to a method for producing a heat exchanger with an accumulator, with a housing and with a tube formed into a helix, the method comprising the following steps: ⁇ Inserting the accumulator into the coil,
  • a method which provides for a plastic deformation of the housing to produce 'a frictional connection between the helix and the inner surface of the housing is especially advantageous because it is easy to use and can be easily adapted to a variety of differently dimensioned heat exchanger.
  • different outer diameters of the heat exchangers can be taken into account by a corresponding adaptation of the device in which the heat exchanger is accommodated for deformation.
  • the accumulator is preferably arranged in the center of the heat exchanger.
  • the helix is attached to the accumulator, so that the accumulator is arranged in the inner space formed within the helix.
  • the housing is placed over the coil, so that the coil and the accumulator are arranged in the housing.
  • the accumulator, the helix and the housing preferably have the same cross-sections, which differ only by the respective inner diameter and outer diameter.
  • the force component is preferably removed from the housing when a certain predetermined deformation is achieved or other predetermined control values have been achieved.
  • a control value for example, a measured force or a covered working distance into consideration.
  • the individual steps of the method lead to an arrangement of an accumulator within a coil, wherein the coil itself is disposed within the housing. By the action of force on the housing, a frictional connection between at least the housing and the coil is generated. After reaching a predefined adhesion, the force is finally removed from the housing, whereby the heat exchanger is formed with the frictionally connected elements.
  • the helix bears with the radially inwardly directed side on the radial outer surface of the accumulator and / or the helix with the radially outwardly directed side on the radially inner surface of the housing is applied.
  • the coil can rest on the accumulator and / or rest against the housing. This is particularly advantageous in order to facilitate assembly. In particular, when the coil rests only on one of the two other elements, the assembly is particularly simple. If the accumulator and the housing abut the helix, different fits can be provided between the helix and the accumulator and / or the housing, whereby an assembly with higher or lower force is possible.
  • a gap is formed between the housing and the helix in order to allow mounting.
  • a gap between the coil and the housing is particularly advantageous when the accumulator and the coil are already pre-assembled as a unit and formed between the coil and the accumulator a fit with low tolerances. The assembly can then be easily mounted in the housing.
  • a gap is advantageous in order to first only achieve a deformation of the housing during the plastic deformation before the housing comes into contact with the housing Wendel comes. As a result, the housing can be deliberately transferred beyond the elastic deformation area into the plastic deformation area without already having an effect on the filament or the accumulator,
  • Cold deformation is particularly advantageous in order to achieve increased stability of the heat exchanger.
  • the lattice structure of the materials of the individual elements is changed, whereby a consolidation of the individual elements and thus of the entire heat exchanger is achieved.
  • the force component is generated by a pressing device on the radially outer surface of the housing.
  • a pressing device can be formed, for example, by one or more punches, which can be moved radially inwards so as to be able to apply a force component to the housing.
  • the heat exchanger facing surfaces of the stamp can be easily adapted to the cross section of the housing of the heat exchanger, which also different heat exchanger can be made in a simple manner.
  • the pressing device can act on the housing in the axial direction over the entire length of the housing or only along a partial area.
  • a further preferred embodiment is characterized in that the application of the force component is steered away and the duration of the force application and / or the nominal force is dependent on the deformation of the housing generated by the force component or in that the application of the force component is force-controlled and the duration of the Force application and / or the nominal force is dependent on a measured or predefined force.
  • a path-controlled device preferably detects the working path of the pressing device or the deformation path of the housing. From this it can be concluded that the already existing deformation, whereby a very accurate deformation can be achieved.
  • a force-controlled pressing device in particular on the punches, a force is measured which arises in response to the applied force component. This changes depending on whether only the housing is deformed or the helix and / or the accumulator, in this way the deformation can be carried out purposefully even without direct insight into the interior of the housing.
  • the nominal force is meant the force component and in particular its magnitude, which is applied to the housing for the purpose of deformation.
  • the deformation of the housing and / or the coil and / or the accumulator has an elastic component, wherein after the action of the radially inwardly directed force component ikros palte between the housing and the coil and / or between the coil and form the accumulator.
  • the emergence of microspheres increases the heat transfer surface of the accumulator, tube and housing. This is done by an upstream deformation of the individual elements and a subsequent widening of the elements in the elastic region of the overall deformation.
  • the deformed areas then have, in particular, a larger surface area.
  • the microcolumns are preferably so small that the disadvantages due to the microcolumn are less than the advantages achieved by the surface enlargement.
  • Fig. 1 is a perspective view of a coil formed into a helix
  • FIG. 2 shows an alternative view of the tube formed into a helix, wherein the free spaces formed between the turns are shown
  • FIG. 3 is a detail view of the upper end portion of the coil, wherein one of the Rohrend Suitee is shown, through which the helix is flowed through,
  • FIG. 4 shows a plan view of the helix, wherein the cylindrical interior, which is formed in the interior of the helix, is shown,
  • FIG. 5 shows a sectional view through a heat exchanger, wherein a state is shown before the last processing step and a gap is formed between the coil and the housing,
  • FIG. 6 shows a sectional view through the heat exchanger according to FIG. 5, wherein the housing is plastically deformed and is in contact with the coil,
  • FIG. 7 is a sectional view through an alternatively designed heat exchanger, wherein a state before the last processing step is shown and between the coil and the accumulator and the coil and the housing is formed in each case a gap
  • Fig. 8 is a sectional view through a heat exchanger according to Figure 7, wherein by a plastic deformation of the housing and the
  • FIG. 9 is a block diagram showing the procedure of the method of manufacturing the heat exchanger.
  • the helix 1 shows a perspective view of a helix 1.
  • the helix 1 is produced by a tube 2, which was wound into a helix 1.
  • the coil 1 has a plurality of turns 3, which are formed spaced apart in the axial direction of the coil 1 and each form a free space 4 between the mutually adjacent turns 3.
  • the axial direction runs along the central axis, which extends from top to bottom through the interior 7 formed inside the turns 3 of the helix 1.
  • the radial direction extends from this central axis to the turns 3.
  • the tube 2 has two Rohend Schemee 5, 6, which are arranged at the top and bottom of the end of the coil 1 and serve as fluid connections for the flow through the tube 2.
  • FIG. 2 shows a further view of the helix 1, as has already been shown in FIG.
  • the free spaces 4 can be seen, which are formed between two mutually adjacent turns 3.
  • the turns 3 each have an identical outer diameter and an identical inner diameter.
  • FIGS. 1 and 2 which show a helix 1 of cylindrical design, a cylindrical inner space 7 is formed and a cylindrical outer surface on the outer diameter of the turns 3.
  • FIG. 3 shows a detailed view of the upper end region of the helix 1.
  • the upper Rohrend Scheme 5 can be seen, which is formed by a bend of about 90 ° from the upper turn 3 upwards.
  • the pipe end region 5 can also be at other angles to the rest of the helix 1 or have additional connection elements.
  • the cylindrical interior 7 is shown inside the coil 1, and furthermore the free spaces 4 between the mutually adjacent turns 3.
  • FIG. 4 shows a plan view of the helix 1 along the central axis, which is formed centrally in the cylindrical interior 7.
  • all windings 3 are in alignment with one another and have identical inner and outer diameters, whereby a cylindrical inner lateral surface and a cylindrical outer lateral surface are formed on the helix 1.
  • FIG. 5 shows a sectional view through a heat exchanger 20.
  • the coil 1 is arranged, which is carried out according to the embodiments of Figures 1 to 4.
  • a likewise cylindrical body 10 is arranged, which forms an accumulator.
  • This accumulator 10 is used in particular for the storage and / or filtering and / or drying of a refrigerant which can flow through the heat exchanger 20.
  • the accumulator 10 has at its upper end portion a nozzle, which communicates with a fluid port 16 in fluid communication.
  • This fluid connection 16 is formed in the housing 1 1, which accommodates both the coil 1 and the accumulator 10 in itself.
  • the accumulator 10 has a radially outwardly directed surface 14, on which more in the embodiment of Figure 5, the radially inwardly directed side 13 of the coil 1 is applied.
  • the surface 14 may have any contour, ie, for example be cylindrical, as shown, or be designed as a single or multi-start thread. Accordingly, the helix 1 is dimensioned such that the accumulator 10 can be received in an exact fit in the cylindrical interior 7.
  • Between the accumulator 10 and the coil 1 may preferably be provided a press fit, a clearance fit or a transition fit. Accordingly, the coil 1 can be pushed over the accumulator 10 with or without force.
  • the upper Rohrend Scheme 5 of the coil 1 is connected to a further fluid port 25, which is also formed in the housing 1 1, in Fluid communication, whereby the coil 1 can be flowed through with a fluid.
  • the housing 1 1 is also cylindrical and has a radially inwardly directed surface 21.
  • the inner diameter of the housing 11 is larger than the outer diameter of the helix 1. This creates a gap 12 between the helix 1 and the housing 11.
  • the cylindrical wall of the housing 11 is formed in a straight line in the region of the helix in the axial direction and has no recesses or indentations.
  • FIG. 5 shows a mounting state of the heat exchanger 20 before final processing, which provides for fixing the coil 1 between the accumulator 10 and the housing 11.
  • the accumulator 10 and the housing 11 or half of the accumulator 10 formed cavity 17 can also be traversed by a fluid.
  • the helix 1 would merely flow around it, since the gap 12 is located between the helix 1 and the housing 11.
  • a contact between the inwardly directed surface 21 of the housing 1 1 and the radially outward directed side 22 of the helix 1 are generated. This should in particular reduce or completely exclude a leakage flow past the turns 3.
  • a flowing through the cavity 17 fluid can then flow only in a helical channel structure, which is formed by the free spaces 4, between the windings 3, whereby improved heat transfer between the fluid flowing in the helix 1 and the fluid flowing through the cavity 17 can be generated.
  • FIG. 6 shows the heat exchanger 20 of FIG. 5, wherein a deformation of the housing 11 in a radially inward direction provides an abutment between the radially inwardly directed surface 21 of the housing 11 and the radially outwardly directed side 22 of the helix 1 is generated.
  • This can be seen in particular by the portion 18 of the housing 1 1, which is deflected by the action of a radially inwardly directed force component from the plane of the original wall 19.
  • both the radially outwardly directed surface of the accumulator 10 is applied to the coil 1 and the radially inwardly directed surface of the housing 1 1.
  • the flow channel is thus defined in particular by the free spaces 4 between the turns 3.
  • the heat exchanger 20 can be inserted in the state of Figure 5, for example in a pressing device and then a force component on the housing 1 1 are exercised.
  • FIG. 7 shows an alternative embodiment of the heat exchanger 20.
  • FIG. 7 represents a partially assembled state of the heat exchanger 20.
  • the helix 1 and the radially outwardly directed surface 14 of the accumulator 10 are located between the inwardly directed side 13 as well as between the radial direction outwardly directed side 22 of the coil 1 and the radially inwardly directed surface 21 of the housing 11 each have a gap 12 and 24, respectively.
  • FIG. 7 shows the heat exchanger as already shown in FIG. 7, whereby the housing 11 has developed a deformation in the housing region 18 by means of a force component which has acted on the outer surface of the housing 11 in a radially inward direction.
  • the deformation in the region 18 of the housing 11 is stronger in comparison to the deformation of Figure 6, so that in addition to an investment of the housing ses on the coil 1 and a system of the coil 1 was generated at the accumulator 10.
  • the housing 1 1 is deformed, but also the helix 1 compressed in radially inward direction.
  • the accumulator 10 can also experience a compression by the action of the radially inward force component.
  • the deformation of the housing 1 1 and / or the coil 1 and / or the accumulator 10 results in a work hardening in the respective elements, which is particularly advantageous for generating a higher stability of the heat exchanger 20.
  • FIGS. 1 to 8 in particular a tube 2 with a circular cross-section is shown.
  • tubes with an oval, elliptical or angular cross-section.
  • the respective shape shown by cylindrical cross sections of the coil 1, the accumulator 10 and the housing 1 1 are merely exemplary. Again, different cross sections can be used without departing from the spirit of the invention.
  • the tube may also have inner ribs or outer ribs, through which the flow in the individual flow channels can be influenced.
  • the free spaces 4 between the windings 3 can be designed with turbulence-generating rib elements.
  • FIG. 9 is a block diagram illustrating the steps of the method in sequence.
  • the accumulator 10 is inserted into the coil.
  • the helix 1 forms an inner space 7, which is arranged in the center of the helix 1. In this interior of the accumulator 10 is inserted. Alternatively, the helix 1 can be pushed over the accumulator 10.
  • the block 31 represents the step in which the housing 1 1 is plugged onto the coil 1.
  • the housing 11 is preferably tubular, wherein the cross section of the housing 1 1 is adapted to the cross section of the coil 1 and / or the accumulator 10.
  • a force component is applied to the radially outer surface of the housing 11. This can preferably be done by a pressing device, which provides movable punch, which generate a force by a method in the radial direction.
  • the working step which is represented by the block 33, corresponds to the plastic deformation of the housing 11 as a result of the force component applied to the housing 11 in the block 32.
  • the force component After reaching a certain predetermined deformation of the housing 1 1 and / or the coil 1 and / or the accumulator 10, the force component is finally removed from the housing 1 1, so that no further plastic deformation takes place. This step is shown in block 34.

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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

L'invention concerne un échangeur de chaleur (20) destiné à refroidir un fluide, comprenant un accumulateur (10), un boîtier (11) et un tube (2) en forme d'hélice (1) et, entre l'accumulateur (10) et le boîtier (11), il est formé une fente dans laquelle est disposé le tube (2) en forme d'hélice (1). Selon l'invention, entre le boîtier (11) et l'hélice (1 ), une liaison à force est formée, cette liaison à force étant générée par une déformation plastique du boîtier (11). L'invention concerne en outre un procédé de fabrication d'un échangeur de chaleur.
PCT/EP2015/067057 2014-07-29 2015-07-24 Échangeur de chaleur et procédé de fabrication de l'échangeur de chaleur Ceased WO2016016143A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15742244.5A EP3175195B1 (fr) 2014-07-29 2015-07-24 Échangeur de chaleur et procédé de fabrication de l'échangeur de chaleur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014110718.7A DE102014110718A1 (de) 2014-07-29 2014-07-29 Wärmeübertrager und Verfahren zur Herstellung des Wärmeübertragers
DE102014110718.7 2014-07-29

Publications (1)

Publication Number Publication Date
WO2016016143A1 true WO2016016143A1 (fr) 2016-02-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/067057 Ceased WO2016016143A1 (fr) 2014-07-29 2015-07-24 Échangeur de chaleur et procédé de fabrication de l'échangeur de chaleur

Country Status (3)

Country Link
EP (1) EP3175195B1 (fr)
DE (1) DE102014110718A1 (fr)
WO (1) WO2016016143A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3051037B1 (fr) * 2016-05-04 2018-11-09 Valeo Systemes Thermiques Echangeur thermique compact
JP2021014971A (ja) * 2019-07-16 2021-02-12 ダイキン工業株式会社 貯留タンクユニット
DE102021108545A1 (de) * 2021-04-06 2022-10-06 Vaillant Gmbh Wärmeübertrager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061184A (en) * 1976-10-28 1977-12-06 Ebco Manufacturing Company Heat exchanger for a refrigerated water cooler
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4577386A (en) * 1983-06-24 1986-03-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for manufacturing a sleeve, in particular for a container for storing a cryogenic fluid
EP2136160A2 (fr) * 2008-06-19 2009-12-23 Behr GmbH & Co. KG Unité de construction intégrée comprenant un collecteur et un échangeur thermique interne et procédé de fabrication de l'unité de construction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19830757A1 (de) 1998-07-09 2000-01-13 Behr Gmbh & Co Klimaanlage
NL2004147C2 (en) * 2010-01-26 2011-07-27 Daalderop Bv Heat exchanger.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061184A (en) * 1976-10-28 1977-12-06 Ebco Manufacturing Company Heat exchanger for a refrigerated water cooler
US4379390A (en) * 1977-02-28 1983-04-12 Bottum Edward W Ice-making evaporator
US4577386A (en) * 1983-06-24 1986-03-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for manufacturing a sleeve, in particular for a container for storing a cryogenic fluid
EP2136160A2 (fr) * 2008-06-19 2009-12-23 Behr GmbH & Co. KG Unité de construction intégrée comprenant un collecteur et un échangeur thermique interne et procédé de fabrication de l'unité de construction

Also Published As

Publication number Publication date
EP3175195A1 (fr) 2017-06-07
DE102014110718A1 (de) 2016-02-04
EP3175195B1 (fr) 2020-02-12

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