WO2004013558A2 - Vorrichtung zum austausch von wärme - Google Patents
Vorrichtung zum austausch von wärme Download PDFInfo
- Publication number
- WO2004013558A2 WO2004013558A2 PCT/EP2003/008003 EP0308003W WO2004013558A2 WO 2004013558 A2 WO2004013558 A2 WO 2004013558A2 EP 0308003 W EP0308003 W EP 0308003W WO 2004013558 A2 WO2004013558 A2 WO 2004013558A2
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- WO
- WIPO (PCT)
- Prior art keywords
- flow
- exchanging heat
- particular according
- distribution
- section
- Prior art date
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Classifications
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- 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
- 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
- F28D1/0475—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 having a single U-bend
- F28D1/0476—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 having a single U-bend the conduits having a non-circular cross-section
-
- 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
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- 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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
- F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
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- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
-
- 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
- F28D2021/0084—Condensers
Definitions
- the invention relates to a device for exchanging heat, in particular for use in air conditioning systems and in particular for. Use in air conditioning systems which, as the refrigerant, have a fluid which contains carbon dioxide as at least one component.
- Such devices for exchanging heat are used, for example, for cooling air.
- the invention further relates to a method for producing a device for exchanging heat.
- Air conditioning systems in motor vehicles are known from the prior art. These air conditioning systems use a refrigerant, which is used to cool the air. Such refrigerants are e.g. B. chlorofluorocarbon. Air conditioning systems that are operated with such refrigerants, however, have the disadvantage that they cause a significant increase in the fuel consumption of a motor vehicle. In addition, these conventional refrigerants have a very high global warming potential on, so that the use of these refrigerants also increases damage caused by the greenhouse effect. For this reason, another refrigerant, namely carbon dioxide (C0 2 ), has recently been used. Compared to the aforementioned refrigerants, carbon dioxide has a significantly lower blowing bio potential. Furthermore, since carbon dioxide is a natural gas, it does not damage the ozone layer. Finally, the use of carbon dioxide as a refrigerant also makes it possible to reduce the fuel consumption of the motor vehicle.
- refrigerants are e.g. B. chlorofluorocarbon.
- a disadvantage of using carbon dioxide as a refrigerant is that very high pressures in the range of up to more than 130 bar have to be generated, and therefore the pressure load on the individual components of the air conditioning systems increases considerably, which necessitates greater stability. There is also the problem of accommodating the individual components of the air conditioning system in a motor vehicle in a way that saves space.
- the invention is therefore based on the object of providing a device for exchanging heat which is distinguished by high stability, an inexpensive and space-saving design and a high pressure resistance. Furthermore, the efficiency of the heat exchange device is to be increased.
- a device for exchanging heat in particular for use in motor vehicles and in particular for use in motor vehicle air conditioning systems, which has a fluid as the refrigerant, which is at least a component ' from a group of gases, which in particular carbon dioxide, nitrogen, oxygen, air . , Ammonia, coal water, especially methane, prepane, n-butane and and liquids, especially water, floe ice, brine etc. Includes, has an inlet and an outlet, which in at least one distribution or. Collection rurri for a fluid flow out.
- carbon dioxide is used as the refrigerant, which is characterized by its physical properties such as its non-flammability.
- the device according to the invention for exchanging heat has at least one flow device which has at least one end flow connection section through which the fluid enters or flows into the flow device. emerges from the flow device and at least one second flow connection section at the end, through which the fluid exits or flows from the flow device. enters the flow device on.
- the first flow connection section is flow-connected to the second flow connection section by at least one pipe section.
- flow-connected is understood to mean that a fluid can flow between two flow-connected sections.
- the device is characterized in that at least one of the flow connection cuts mentioned is twisted at least once.
- twist is understood to mean that a component is rotated along its longitudinal direction by a certain predetermined angle.
- the device for exchanging heat is completely, but at least the flow device as a component of the device is surrounded by a preferably gaseous medium, in particular air Furthermore, the first or the second flow connection section is connected to the collecting space, and the second or the first flow connection section is connected to the distribution space.
- a collecting space is understood to be a device which is suitable for collecting the medium supplied to it from at least one, preferably a plurality of components.
- the distribution component serves to distribute a fluid introduced into it to at least one, preferably a plurality of devices, in particular flow devices.
- the pipe section has at least one straight section.
- a straight section is understood to mean a section that runs essentially parallel to a straight line.
- the pipe section has at least one curved section.
- a curved section is understood to mean such a section that deviates in some way from a straight or straight course, e.g. B. a bend by a predetermined angle, a bend by a predetermined radius of curvature or the like.
- the pipe section has at least one twisted section, i. H . a section in which the pipe section is rotated or twisted along its longitudinal direction.
- a section in which the pipe section is rotated or twisted along its longitudinal direction.
- a combination of a torsion or a bend or. Curvature possible.
- a section can first be twisted along its longitudinal direction and then curved in the area of the torsion.
- the pipe cut has at least two curved sections different radii of curvature. So would come. B. a 3- or S-shaped shape of the pipe section into consideration.
- a plurality of flow connection sections and pipe sections can also be provided. Irrespective of this, several collection rooms and / or distribution rooms can also be provided.
- a collecting space can be flow-connected to a flow connection section; a pipe section can in turn be connected to this flow connection section, to which a further flow connection section and a further collection or distribution space are connected.
- This sequence can be expanded or modified in any way.
- the number of first and second flow connection sections is equal to the number of pipe sections.
- the flow device has at least one flow channel, preferably a plurality of flow channels for passing on the refrigerant, and has a flat tube-like cross section.
- the cross-section essentially has the shape of a rectangle or an ellipse, the longer side of this rectangle being substantially larger than the smaller side or the longer semiaxis being substantially longer than the shorter semiaxis.
- the flow device is at least made of a material from a Group of materials produced, which metals, in particular aluminum, manganese, silicon, magnesium iron, brass, copper, tin, zinc, titanium, chromium, molybdenum, vanadium and alloys thereof, in particular wrought aluminum alloys with a silicon content of 0 to 0, 7% and a magnesium content between 0, 0 and 1%, preferably between 0, 0% and 0, 5% and particularly preferably between 0, 1% and 0, 4%, preferably EN-AW 3003, EN-AW 3102, EN-AW 6060 and EN-AW 1100, plastics, fiber-reinforced plastics, composite material etc. contains.
- metals in particular aluminum, manganese, silicon, magnesium iron, brass, copper, tin, zinc, titanium, chromium, molybdenum, vanadium and alloys thereof, in particular wrought aluminum alloys with a silicon content of 0 to 0, 7% and a magnesium content between 0, 0 and 1%, preferably between 0, 0% and 0,
- the first and / or the second flow connection section is twisted at a predetermined angle.
- This predefined torsion angle results from the angle that the perpendicular to the flattened area of the flat tube-like flow device in the area in front of the flow connection section with the perpendicular to the flattened area of the flow device includes the flow device according to the verb in.dung.sab section. Both positive torsion angles and negative torsion angles are possible, the different signs indicating different torsion directions of rotation.
- the amount of the torsion angle is between 10 and 180 degrees, preferably between 45 and 135 degrees and particularly preferably between 80 and 100 degrees.
- the torsion of both the first and the second flow connection section takes place in the same torsion direction, i. H .
- the torsion angles correspond with one another with regard to their sign and also essentially with one another with regard to their amount.
- the pipe section is twisted several times.
- at least two torsions of the tube take place in the same torsion direction from the cut, ie. H . the torsion angles have the same signs.
- the two torsions of the pipe section take place in different torsion directions, ie. H . the torsion angles have a different sign.
- the torsion angles of at least two torsions of the pipe section are essentially the same or opposite.
- the curved and / or the twisted section t of the pipe section is connected to a support element. This can be done in such a way that the pipe section at least . partially around the support alarm zelement around and is bent at the contact points with the supporting element by a connection - such as' solder, adhesive or the like is fixed to this material.
- thermal separation is understood to mean a state which completely or at least largely prevents heat transfer between the components involved, for example the distribution and collection space.
- the thermal separation of the collection / distribution spaces is achieved in that the distribution space and the collection space are spaced apart from one another, thus forming an air gap between the spaces.
- the distribution space and the collecting space are kept spaced apart by means of bridge-like devices.
- a material is placed between the distribution chamber and the collection chamber, which ngsraum a thermal separation between the Verteili and the collecting chamber and the distribution causes - as well as the collecting space on this material * fabric connected to each other positively.
- the distribution space and / or the collection space have receiving devices or. Feed-through devices, the inner cross section of the receiving devices essentially corresponding to the outer cross section of the flow device.
- the outer cross section of the flow device is particularly preferably slightly smaller than the inner cross section of the receiving devices, so that the flow device can preferably be inserted or pushed through a plurality of flow devices in the individual receiving devices.
- the receiving device can also be designed as a feed-through device, so that the flow-through device is inserted through the receiving device into the collection and / or distribution space.
- the recording device can also be designed so that several flat tubes can be accommodated in it.
- the receiving devices have an essentially rectangular or elliptical shape, the longer side of which is essentially rectangular or elliptical
- On receiving devices are arranged at a predetermined angle to the longitudinal direction of the distribution and collection device.
- the longitudinal direction of the distribution / collection device is understood to mean the direction in which the distribution / collection space essentially extends.
- this predetermined angle is a value of between the longitudinal direction of the distribution / collection space between '0 and 90 degrees, preferably between 0 and 45 degrees and particularly preferably between 0 and 10 degrees.
- a rotation of the receiving device with respect to the longitudinal direction in a clockwise direction is indicated by a positive angle.
- a plurality of flow devices are arranged essentially parallel to one another.
- a parallel arrangement is understood to mean that the flattened part of the flat tube-like flow device is essentially parallel to the flattened part of the other flow devices.
- cooling fins are provided between the flow devices, which heat exchange with the through or. flowing air favor.
- the pipe sections of the flow devices and the support elements are at least partially connected to one another in a positive and / or non-positive manner.
- frame devices are provided which are at least partially positively, positively and / or materially connected to the support element and / or the collection and / or distribution space.
- at least one separating device is provided, which divides the collecting space and / or the distribution space in a gas-tight and liquid-tight manner into at least two space sections.
- This separating section can, for example, be a wall which is pushed into the distribution and / or collecting space and is soldered, glued or connected in a similar manner.
- At least one space section of a collection / distribution space is at least one space section.
- another collection ../ distribution space connected to electricity by at least one connecting device.
- This connecting device can be, for example, a tubular element which is suitable for the passage of the fluid.
- the opening device is designed in such a way., * .Da - the refrigerant in the area of the separating device flows through the connecting device, which is made in one piece with the separating device, into another collecting / distribution space. In this way, the refrigerant is crossed into another collection / connection space.
- link will be understood that the flow direction of the refrigerant within the 'collecting - / distribution device over a certain distance range of the longitudinal direction L of the collector - / distribution direction is changed.
- the racing device is arranged such that a first section facing away from the air flowing through it is flowed through, La.nn a section facing the air flowing through it, again in the section facing away from the air flowing through, and finally lower one of the air flowing through facing section.
- several of the above-mentioned sections can also be formed by using a plurality of separating devices, and in this way the refrigerant can often be passed through the device in a cross-countercurrent manner.
- a distribution space, a collecting space, a flow device and an inlet and an outlet are components which oil an assembly. It is possible to dimension the entire exchange device in any desired manner by connecting a plurality of such assemblies in series.
- the invention is further directed to a device for exchanging air, in particular for motor vehicle air conditioning systems with air flow paths, air flow control elements, at least one air conveying device and a housing which is prepared for receiving at least one device for exchanging heat or within which such a device is arranged to exchange heat.
- the invention is preferably directed to a device for exchanging heat, in particular for motor vehicle air conditioning systems with at least one condenser, a compressor, an expansion valve, a collector and at least one device for exchanging heat.
- the invention is further directed to a method for producing a flow-through device, in particular a flat tube for a device for exchanging heat, the method being the method steps of producing a heat exchanger flow means extending essentially in a longitudinal direction and twisting at least one first end-side flow connection section and at least one second end-side flow connection section by a certain torsion angle.
- the flow device is curved in the region by a predetermined bending angle with respect to the longitudinal direction of the flow device in order to produce a section of curvature.
- the bending angle assumes 0 degrees, 30 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees or 180 degrees or any intermediate values.
- the longitudinal direction or flow device is understood to mean the direction in which the flow device essentially extends in the uncurved state.
- the throughflow device is particularly preferably twisted in at least one area, the torsion angle assuming 0 degrees, 30 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees or 180 degrees or any intermediate values.
- Figure 1 is a schematic representation of a device for exchanging heat according to the invention.
- FIG. 2 shows a perspective illustration of a device for exchanging heat according to FIG. 1;
- FIG. 3 is a schematic representation of a flow device for a device for exchanging heat according to the present invention
- Fig. 3a is a schematic plan view of a one-sided
- FIG. 4 shows a schematic illustration of a collecting space or a distribution space for a device for exchanging heat according to the present invention
- Figure 4a is an illustration along line A-A in Figure 4.
- FIG. 5 shows a top view of the illustration from FIG. 1;
- FIG. 6 shows the separation device from FIG. 5 in a perspective illustration
- FIG. 6a shows the separating device from FIG. 5 in a top view
- FIG. 6b shows the separating device from FIG. 5 in a further plan view; - ..
- 6c is a perspective view of the
- FIG. 7a shows a three-dimensional representation of the flow direction of the refrigerant in the embodiment shown in FIG. 7.
- the device has a feed line 1 and a discharge line 2.
- This supply line and this discharge line each lead to a distribution or collection room, such that they are connected to these rooms are connected to the electricity.
- both the feed line and the discharge lead into the same room, which is then divided into two sub-rooms by a separating device.
- a collecting space or distribution space is understood to mean a volume element limited in the longitudinal direction. This volume element can extend along the entire length 1 of the device, but can also have a shorter length if, for example, separation devices are provided.
- Reference numeral 7 denotes a flow device through which a fluid can flow.
- these flow devices (7, 7 ', 7 ") are preferably arranged in the device for exchanging heat.
- Cooling fins 10 are provided between these flow devices. These cooling fins in turn have gills (not shown in the illustration) which have the heat exchange
- the fin density of the cooling fins is 10-50 fins per dm, preferably 25 to 100 fins per dm and particularly preferably 50 to 80 fins per dm.
- the gills have a length of -1 mm to 20 mm, preferably between 2 mm and 15 mm and particularly preferably from 3.5 mm to 12 mm.
- the width of the lamella slots is between 0.05 mm and 0.5 mm, preferably between 0.1 mm and 0.4 mm and particularly preferably between 0.2 mm and 0.3 mm.
- the reference numeral 11 denotes a frame means which at least partially form-locking, frictional and / ode 'r cohesively Uend with the plenum / or the distribution chamber is connected.
- the flow devices in Figure 1 are designed so that they are bent around a support device 12. In this case the
- Flow device bent by an angle of substantially 180 ° with respect to the longitudinal direction It is envisaged that the individual flow devices with the support device connect, for example by a connecting material, in particular solder, adhesive or the like. However, screw, rivet or similar connections can also be provided.
- the flow device has an essentially flat tube-like cross section, as well as a flow channel or a plurality of flow channels for conveying the refrigerant.
- the individual flow channels have an essentially circular or elliptical cross section.
- the cross section of the individual channels is between 0.2 mm and 3 mm, preferably between 0.5 mm and 2.0 mm and particularly - preferably between 0.8 mm and 1.8 mm.
- the hydraulic diameter is' between 0.1mm and 3mm, preferably between 0.4mm and 2mm, and more preferably between 0.8mm and 1.6mm.
- the pressure ratio of the pressure of the refrigerant in the supply line and in the discharge line is between 1: 1.5 and 1:20, preferably between 1: 3 and 1:10 and particularly preferably between 1: 4 and 1: 6.
- the distance between the individual flow devices along the direction L is between 2 mm and 30 mm, preferably between 5 mm and 20 mm and particularly preferably between 8 mm and 14 m.
- the . Support device 12 is formed with a substantially circular cross section. However, other cross sections, e.g. B. ellipse cross-sections, or such cross-sections which have edges can be provided.
- the cross section of the support element is between 4 mm and 24 mm, preferably between 6 mm and 18 mm and particularly preferably • between 8 mm and 12 mm.
- the support device 12 is also preferably at least partially positively, non-positively and / or cohesively connected to the frame device or devices 11, in particular solder, adhesive or the like being considered as the connecting material. Can between the frame device (s) 11 and the support device 12 However, screw rivets or similar connections may also be provided.
- the resulting height 'h of the device is between 400 and 900 mm, preferably between 500 and 800 mm and particularly preferably between 650 and 750 mm.
- the reference numeral 13 denotes a separating device which serves to divide the distribution spaces in a flow-tight manner.
- the separating device 13 is pushed into the collection and / or distribution space and then connected to the collection and / or distribution space, solder, adhesive or the like being considered as connecting materials.
- Flow-tight is understood here to mean that a medium cannot penetrate through such a closed space.
- Fig. 3 shows a schematic representation of a flow device for a device for exchanging heat according to the present invention.
- the two arrows indicate the preferred direction of flow of the fluid inside the flow device.
- the reference numerals 23 and 23- ' indicate a first or. second end flow connection section.
- the reference numerals 26 designate a pipe section of the flow device.
- the end flow connection section 23 and the end flow connection section 23 ' are, as can be seen from the illustration, each twisted once. In the present representation, there is a torsion by a torsion angle of 90 degrees. However, torsion angles deviating from 90 degrees are also conceivable.
- ' In Fig. 3 s the two flow connection sections are twisted in the same direction. However, it is also possible to perform the twists in different directions.
- Reference numeral 21 denotes a curved section of the flow device.
- the flattened side of the flow device is perpendicular to the plane of the figure.
- the torsion takes place in the twisted section 25 by a torsion angle of minus 90 degrees and in the twisted section 2 5 'by plus 90 degrees.
- other torsion angles are also conceivable here, both in terms of amount and sign.
- the width b of the flow device is between 2 mm and 12 mm, preferably between 4 mm and 8 mm and, very particularly preferably, between 5 mm and 7 mm.
- the distance d between the flat tube section, in which the fluid essentially moves in the longitudinal direction, and the flat tube section, in which the medium moves essentially counter to the longitudinal direction 1, is between 0.1 mm and 6 mm, preferably between 0.8 mm and 4 mm and particularly preferably between 1 mm and 2 mm.
- said pipe sections do not touch each other. In this way, heat exchange between the two pipes is prevented. It is also possible to attach a medium between the two pipe sections 26a and 26b which permits thermal separation.
- the cooling fins 10 can be designed so that they are not extend continuously along the flat side of the through-flow device 26, but also in two cooling fins strands 10a and 10b divided.
- the thickness of the flow device is between 0.1 mm and 5 mm, preferably between 0.3 mm and 4 mm and particularly preferably between 0.8 mm and 2 mm.
- Figure 3a shows a diagram showing the cross section of the flow device 7 in the region of an end-side flow connection section 23.
- the flow-through device has one, preferably a plurality of flow channels 27.
- Figure 3a also serves to illustrate the torsions.
- a torsion of the through luß was carried out in the counterclockwise direction, that is, a rotation about 'a torsion angle ß of - 90 °.
- the torsions shown in the figure of the two end-side flow connection sections 23 and 23 ' have a torsion angle with an amount of 90 ° and a negative sign, that is to say -90 °.
- Figure 4 shows a schematic representation of a distribution or. Gathering room.
- the distribution or collection room. has a plurality of receiving devices 31 and. 31 'on. On this acquisition devices are used to receive or to carry out the flow device 7th
- the inner diameter of these bushing devices corresponds essentially to the outer cross section of the flow device 7 and is preferably slightly larger.
- the end sections of the flow device are inserted into the receiving devices 31 or. 31 'inserted.
- the connection point is then closed, for. B by clamping together the clamping walls 35 and 35 ', whereby the flow device in the distribution or. Collecting space is pressed.
- the acquisition facilities and the flow devices z. B. connected by solder, adhesive or the like.
- the clamp-like connection between the flow devices and the receiving devices on the collection or distribution space has the advantage that the 'high pressures up to approx. 300 bar, oak are required with carbon dioxide coolers, • can be earthed and the flow paths are gas and / or liquid tight even at these high pressures.
- Flow connection section limited. However, it is also possible for the flow devices to reach the bottom of the distribution or. Collection space can be inserted.
- the insertion depth is between 1 mm and 12 mm, preferably between 3 mm and 9 mm and particularly preferably between 4 mm and 8 mm.
- the individual receiving devices 31 and 31 ' are along the longitudinal direction L of the receiving or. arranged the collection room, d. H . whose longitudinal direction, which is indicated by the dashed line g "- includes an angle with the longitudinal direction 1 which is less than 10 degrees, preferably substantially 0 °.
- the To arrange on recording devices at a different angle up to 90 ° with respect to the longitudinal direction is also possible.
- Fig. 4a shows a section from FIG. 4 along the line AA.
- the reference signs 35 and 35. ' identify the clamping walls that are used to clamp the flow connection section.
- the reference numeral 31 shows the recording device, as shown in this sectional view ' .
- the flow connection section has an approximately ⁇ -shaped cross section.
- Fig. 5 shows a top view of a heat exchange device according to the present invention.
- the reference numerals 4 and 5 indicate two collection or distribution rooms. In a preferred embodiment, the two collectors touch one another. and distribution rooms are not directly, but are spaced apart, which is indicated by the reference character 8.
- collecting spaces are provided with an air gap which brings about a thermal separation of the two spaces.
- a thermally insulating material i. H . to combine a material with a low coefficient of thermal conductivity.
- the collection space is connected to the distribution space via the web-like separation device 13. Further connection devices 6 serve to receive the supply line 1 and the discharge line 2.
- the separating device 13 divides the distribution and / or collecting space into two separate subspaces.
- the distribution or the collecting space has a length along the longitudinal direction L between 100 and 800 mm, preferably between
- Figure 6 shows a schematic representation of a separation direction for a device for exchanging heat according to the present invention.
- the separating device has an opening 41 and a dividing wall 43.
- the separating device is inserted into prepared slots in the distribution or. Collection rooms inserted.
- the separation device is preferably connected to the distribution or. Soldering room soldered or. welded or otherwise connected;
- Figure 6a is a side view of the separating device _ from Fig. 6 shown.
- the partition 43 projects into the sheet plane.
- Figure 6b shows a further side view of the separating device along the arrow P from FIG. 6.
- the opening 41 hidden in this illustration is sketched in broken lines.
- 6c shows a perspective illustration of the separating device 13 installed in the collection / distribution spaces.
- the separators ensure that the refrigerant does not run the entire length of the distribution or. Collecting pipe is healed on the individual flow devices, but first over that in a first section, from where it passes through the flow devices into a corresponding first section of the second collection / distribution space. From there, the medium flows through the opening 41 of the separating device 43 into the second room of the first collecting / distribution room, in order to finally reach the second part of the second collecting room via the flow device.
- separating devices can also be provided. In this way it is possible to route the refrigerant several times into several distribution / collection space sections.
- the advantage of such an embodiment consists in a more uniform division of the different heat transfer areas of the device according to the invention.
- no separating device can be provided, so that the distribution and collection space are each formed by the complete spaces extending in the longitudinal direction.
- the collecting space is not to be understood as the complete volume shown in FIG. 3, but rather only individual room sections which are divided by the separating devices.
- the separating means have the advantage that the flow of refrigerant 'is insult- more favorable manner via the flow-through of air surface of the device for exchanging heat.
- two distribution or collection rooms are provided. At least one of these two distribution or collection spaces, preferably one of the two collection or distribution spaces, is provided with at least one, preferably exactly one, separating device.
- This separation device divides the distribution or collection space into .
- the distribution or collection space provided with the separating device furthermore has an inlet and an outlet.
- the two distribution or collection spaces are preferably only in flow connection via the flow device.
- the flow-through device has at least one flow channel, preferably a plurality of flow channels for conveying the refrigerant, and particularly preferably has a flat tube-like cross section.
- Trenix devices can also be provided.
- the distribution or collection space which is provided with the inlet and outlet, can have two separation devices
- the other distribution or collection space can have a separation device, which is preferably located in the longitudinal direction of the distribution or collection space between the two Separators of the first-mentioned distribution or collection room is located.
- n separation devices can be provided in the distribution or collection space, which is provided with the supply and discharge lines be provided, and in the other distribution or collection space n-1 separation devices, which are each arranged so that the individual separation devices are arranged alternately on the two collection or distribution spaces along the longitudinal direction of the distribution or collection spaces. In this way it can be determined how often the fluid is passed back and forth between the two distribution or collection spaces.
- Fig. 7 shows a schematic representation in this embodiment.
- the reference numerals 4 and 5 refer to the two distribution or collection rooms.
- the reference numerals 1 and 2 denote a feed line or discharge line which serves to introduce a fluid into a distribution or collection space 5.
- the supply and discharge lines extend essentially along the longitudinal direction of the distribution or
- the reference numeral 13 denotes a separating device which is provided in the distribution or collection space 5 in such a way that this distribution or collection space is divided into two sections. As is apparent from Fig. 7, no direct connection in this embodiment between the two distribution or collection space '4 and 5 is provided, but the flow connection here runs over the individual fürflußeinrichtüngen.
- the separating device is arranged in such a way that the length ratios of the collecting and distributing device 5 are between the space section facing the feed line and the space section facing the drain line. rich by the ratio of the lengths 1 and 1 2 shown in FIG. 7, between 9: 1 and 1: 9, preferably between 9: 1 and 1: 3, particularly preferably at about 2: 1. These dimensions depend on the • degree of density or the density ratio before or after the section-by-section cooling of the fluids.
- the fluid first reaches the subsection a of the distribution or collecting space 5. From there, it flows, as shown in FIG. 7 a, via the flow device (not shown) into the distribution or collecting space 4. Because in this distribution or collection room. 4 no separation device is provided, the fluid can be distributed over the entire length of the distribution or collection space 5, which is indicated by the letter k>. From here the Fluid-i .-- ija - ⁇ . flows in the opposite direction through ' die - .. republic> •
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)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/518,596 US7347063B2 (en) | 2002-07-26 | 2003-07-22 | Device for heat exchange |
JP2005506063A JP2005533995A (ja) | 2002-07-26 | 2003-07-22 | 熱交換装置 |
AU2003263182A AU2003263182A1 (en) | 2002-07-26 | 2003-07-22 | Device for heat exchange |
EP03766256A EP1527310A2 (de) | 2002-07-26 | 2003-07-22 | Vorrichtung zum austausch von w rme |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10234117 | 2002-07-26 | ||
DE10234117.6 | 2002-07-26 | ||
DE10241843 | 2002-09-09 | ||
DE10241843.8 | 2002-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004013558A2 true WO2004013558A2 (de) | 2004-02-12 |
WO2004013558A3 WO2004013558A3 (de) | 2004-04-22 |
Family
ID=31496731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/008003 WO2004013558A2 (de) | 2002-07-26 | 2003-07-22 | Vorrichtung zum austausch von wärme |
Country Status (6)
Country | Link |
---|---|
US (1) | US7347063B2 (de) |
EP (1) | EP1527310A2 (de) |
JP (1) | JP2005533995A (de) |
AU (1) | AU2003263182A1 (de) |
DE (1) | DE10333464A1 (de) |
WO (1) | WO2004013558A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006054814B4 (de) * | 2006-11-22 | 2010-07-01 | Modine Manufacturing Co., Racine | Gelötetes Flachrohr für Kondensatoren und/oder Verdampfer |
DE102007007233A1 (de) | 2007-02-14 | 2008-09-25 | Behr Gmbh & Co. Kg | Vorrichtung, insbesondere Kraftfahzeuge, mit einem Wärmeübertrager |
FR2914735B1 (fr) * | 2007-04-03 | 2012-12-21 | Valeo Systemes Thermiques | Echangeur thermique multi passes |
DE102010032899A1 (de) * | 2010-07-30 | 2012-02-02 | Valeo Klimasysteme Gmbh | Kühlvorrichtung für eine Fahrzeugbatterie sowie Fahrzeugbatteriebaugruppe mit einer solchen Kühlvorrichtung |
FR2973492B1 (fr) * | 2011-03-31 | 2017-12-15 | Valeo Systemes Thermiques | Boite collectrice pour echangeur thermique notamment pour vehicule automobile, et echangeur thermique correspondant |
EP3653950A4 (de) * | 2017-07-13 | 2020-11-25 | Hangzhou Sanhua Research Institute Co., Ltd. | Wärmetauscher |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3416600A (en) * | 1967-01-23 | 1968-12-17 | Whirlpool Co | Heat exchanger having twisted multiple passage tubes |
FR2712966A1 (fr) * | 1993-11-24 | 1995-06-02 | Valeo Thermique Moteur Sa | Echangeur de chaleur à tubes plats, en particulier pour véhicule automobile. |
EP0845648A2 (de) * | 1996-11-27 | 1998-06-03 | Behr GmbH & Co. | Flachrohr-Wärmeübertrager, insbesondere Kondensator vom Serpentinentyp |
DE19830863A1 (de) * | 1998-07-10 | 2000-01-13 | Behr Gmbh & Co | Flachrohr mit Querversatz-Umkehrbogenabschnitt und damit aufgebauter Wärmeübertrager |
DE19833845A1 (de) * | 1998-07-28 | 2000-02-03 | Behr Gmbh & Co | Wärmeübertrager-Rohrblock und dafür verwendbares Mehrkammer-Flachrohr |
FR2793013A1 (fr) * | 1999-04-28 | 2000-11-03 | Valeo Thermique Moteur Sa | Echangeur de chaleur brase, en particulier pour vehicule automobile |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3273227A (en) * | 1963-06-12 | 1966-09-20 | Olin Mathieson | Fabrication of heat exchange devices |
JP3305460B2 (ja) * | 1993-11-24 | 2002-07-22 | 昭和電工株式会社 | 熱交換器 |
DE19944951B4 (de) * | 1999-09-20 | 2010-06-10 | Behr Gmbh & Co. Kg | Klimaanlage mit innerem Wärmeübertrager |
US20030102113A1 (en) * | 2001-11-30 | 2003-06-05 | Stephen Memory | Heat exchanger for providing supercritical cooling of a working fluid in a transcritical cooling cycle |
US20030183378A1 (en) * | 2002-04-02 | 2003-10-02 | Memory Stephen B. | Heat exchanger and folded tube used therein |
-
2003
- 2003-07-22 US US10/518,596 patent/US7347063B2/en not_active Expired - Fee Related
- 2003-07-22 WO PCT/EP2003/008003 patent/WO2004013558A2/de active Application Filing
- 2003-07-22 JP JP2005506063A patent/JP2005533995A/ja active Pending
- 2003-07-22 AU AU2003263182A patent/AU2003263182A1/en not_active Abandoned
- 2003-07-22 DE DE10333464A patent/DE10333464A1/de not_active Withdrawn
- 2003-07-22 EP EP03766256A patent/EP1527310A2/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3416600A (en) * | 1967-01-23 | 1968-12-17 | Whirlpool Co | Heat exchanger having twisted multiple passage tubes |
FR2712966A1 (fr) * | 1993-11-24 | 1995-06-02 | Valeo Thermique Moteur Sa | Echangeur de chaleur à tubes plats, en particulier pour véhicule automobile. |
EP0845648A2 (de) * | 1996-11-27 | 1998-06-03 | Behr GmbH & Co. | Flachrohr-Wärmeübertrager, insbesondere Kondensator vom Serpentinentyp |
DE19830863A1 (de) * | 1998-07-10 | 2000-01-13 | Behr Gmbh & Co | Flachrohr mit Querversatz-Umkehrbogenabschnitt und damit aufgebauter Wärmeübertrager |
DE19833845A1 (de) * | 1998-07-28 | 2000-02-03 | Behr Gmbh & Co | Wärmeübertrager-Rohrblock und dafür verwendbares Mehrkammer-Flachrohr |
FR2793013A1 (fr) * | 1999-04-28 | 2000-11-03 | Valeo Thermique Moteur Sa | Echangeur de chaleur brase, en particulier pour vehicule automobile |
Also Published As
Publication number | Publication date |
---|---|
WO2004013558A3 (de) | 2004-04-22 |
AU2003263182A1 (en) | 2004-02-23 |
US7347063B2 (en) | 2008-03-25 |
DE10333464A1 (de) | 2004-04-22 |
EP1527310A2 (de) | 2005-05-04 |
US20050223738A1 (en) | 2005-10-13 |
JP2005533995A (ja) | 2005-11-10 |
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