WO2013114045A1 - Echangeur thermique, notamment pour vehicule comprenant un moteur thermique - Google Patents
Echangeur thermique, notamment pour vehicule comprenant un moteur thermique Download PDFInfo
- Publication number
- WO2013114045A1 WO2013114045A1 PCT/FR2013/050202 FR2013050202W WO2013114045A1 WO 2013114045 A1 WO2013114045 A1 WO 2013114045A1 FR 2013050202 W FR2013050202 W FR 2013050202W WO 2013114045 A1 WO2013114045 A1 WO 2013114045A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exchanger
- circuit
- exchanger according
- heat
- pipes
- Prior art date
Links
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000013529 heat transfer fluid Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 29
- 239000010457 zeolite Substances 0.000 claims description 28
- 229910021536 Zeolite Inorganic materials 0.000 claims description 27
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
-
- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
-
- 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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- 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
- F28D7/16—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 arranged in parallel spaced relation
-
- 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
- F28D7/16—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 arranged in parallel spaced relation
- F28D7/1607—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 arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- 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
-
- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- Heat exchanger in particular for a vehicle comprising a heat engine
- the present invention relates to a heat exchanger, in particular for a vehicle comprising a heat engine.
- Such an exchanger may for example be used to heat the engine of the vehicle when it starts. Heating the engine when the vehicle is starting can reduce fuel consumption and / or pollutant emissions. This heat can also, in very cold conditions, be transmitted to the cabin to improve the comfort of the vehicle users.
- the invention aims to meet this need and it achieves, in one of its aspects, using a heat exchanger for a vehicle, the vehicle including a heat engine, the exchanger comprising a first circuit, a second circuit and a tank,
- the first circuit comprising first pipes capable of conveying gases
- the second circuit comprising second conduits capable of conveying a coolant
- the reservoir being able to receive a reagent.
- the exchanger may comprise an enclosure inside which are disposed the first circuit, the second circuit and the reservoir.
- the first circuit can be connected to accesses inside the enclosure to allow the entry and exit of gases in the first circuit.
- the second circuit can be connected to at least two accesses to the inside of the enclosure to allow the entry and exit of the fluid in the second circuit.
- the reservoir can be connected to at least one access to the interior of the enclosure to allow the reagent supply of the reservoir and / or the supply of the reservoir in a reaction fluid engaging with said reagent an exothermic reaction in said reservoir .
- the reservoir can then be configured to resist this exothermic reaction, that is to say, not to be degraded immediately or in the longer term by this exothermic reaction.
- the reagent is in particular a solid reagent, for example zeolite.
- the first circuit can convey exhaust gas
- the second circuit can convey the coolant, preferably the coolant of a heat engine
- the reservoir can receive the reagent, preferably the zeolite.
- the reservoir can be crossed by the first and second conduits.
- the reagent can then be at least partly received in the reservoir space not occupied by the first and second conduits.
- the reagent may be disposed wholly or partly in the interstices between the pipes passing through the tank.
- the reservoir can extend on either side of the first pipes and second pipes.
- Reaction fluid such as water
- Reaction fluid can be poured into the reservoir and this water can come into contact with the zeolite to cause an exothermic water adsorption reaction by the zeolite.
- the heat thus released can be recovered by the fluid flowing in the second circuit and fed to the engine to heat it.
- Regeneration of the zeolite saturated with water after said exothermic reaction can be obtained by passing the exhaust gases in the first circuit. These can release heat to desorb the water contained in the pores of the zeolite, so that the zeolite is again ready to react exothermically with water at a next start of the vehicle.
- the exchanger can thus recover the heat released by the zeolite and regenerate it later.
- water must be understood in a broad sense, designating both pure water and a mixture of water and component (s) in lesser proportion (s), such mixing is for example glycol water.
- the exchanger can be called a “three-fluid exchanger” since it can receive three fluids, for example water or more generally the reaction fluid, the coolant and the exhaust gas.
- pipe can be understood as synonymous with “tube”, whether the tube has a circular cross section or other.
- the first circuit and the second circuit can occupy part of the inside of the enclosure and the rest of the interior of the enclosure can form the reservoir, that is to say that the reservoir can be formed by the interstices between the pipes in the enclosure.
- the zeolite can be used in the form of beads, thus forming beds of beads in the tank.
- the zeolite may be used in the form of thin layers.
- the zeolite can be anhydrous before its reaction with water.
- the second circuit and the reservoir are advantageously arranged so that when the reagent is subjected to an exothermic reaction, the heat released by this reaction is transmitted to the fluid flowing in the second conduits.
- the first circuit and the reservoir are advantageously arranged so that when exhaust gases circulate in the first pipes, their heat is transmitted to the reagent in the tank.
- the exchanger thus allows efficient heat transfer, for example to the heat engine, while ensuring a regeneration of the zeolite.
- the exchanger can be sized to provide a power of the order of 15 kW for a period of about two minutes to heat the engine.
- the exchanger may also be sized so that regeneration by the exhaust gas of the zeolite is carried out in a period of between ten minutes and half an hour, for example in twenty minutes.
- the first circuit may comprise a plurality of first separate pipes extending substantially parallel to the longitudinal axis of the exchanger. These first conduits may be uniformly distributed or not in the enclosure.
- the second circuit may comprise at least one unit of second conduits interconnected by junctions, the unit having one end forming an input of the unit and another end forming an output of the unit.
- the input and output of the unit can each communicate with one of the two accesses to the inside of the enclosure to respectively allow the entry and exit of the fluid in the unit.
- the second circuit can be formed by a single unit or, alternatively, by several separate units. Each unit can form a web, having a serpentine shape. Such a sheet allows the fluid flowing through a unit of the second circuit to satisfactorily receive the heat released by the exothermic reaction.
- Each unit can extend in a plane.
- each of these units may have the same number of second pipes, so as to have the same pressure loss.
- Each unit is for example formed by between two and twenty second pipes connected one after the other. Between two and ten units, for example four units, can form the second circuit.
- Each second conduit may extend substantially parallel to the longitudinal axis of the exchanger.
- the inlet and outlet of the unit may be located at the same height along the longitudinal axis of the exchanger, in particular at the same longitudinal end of the exchanger, in particular on both sides of the longitudinal axis.
- At least one second pipe can lead to at least one of its longitudinal ends in a space delimited by a pair of plates arranged transversely, in particular perpendicularly, with respect to the longitudinal axis of the exchanger.
- This space can be closed by the enclosure.
- the corresponding longitudinal ends of all or part of the second conduits of the second circuit open for example into said space.
- the exchanger is provided with at least two pairs of plates, each pair being at a distance from the other pair along the longitudinal axis of the exchanger, each pair being in particular disposed near a longitudinal end of the exchanger, and each pair of plates defines a space in which open the corresponding longitudinal ends of all or part of the second conduits.
- junction between two corresponding longitudinal ends of two second pipes of the unit can be achieved by means of a bracelet surrounding a portion of the space delimited by the pair of plates, said longitudinal ends of said second pipes opening into this part from space.
- the junction can thus be made other than by machining the pipes so that they have an elbow. According to what precedes, two straight lines are connected with a pair of plates and a bracelet.
- Each plate of a pair can be crossed by the first conduits and only one of these two plates can be traversed by the second conduits involved in the junctions.
- the non-traversed plate by the second pipes in pairs connected to each other by the junctions is for example arranged longitudinally between the other plate of the pair and the longitudinal end closest to the exchanger.
- Each first or second conduit may be attached, for example by brazing, to only one plate or both plates.
- Plates of the same pair can be used for all the junctions of a unit or the second circuit, at the same longitudinal end of the second conduits.
- the bracelet may extend along the longitudinal axis of the exchanger over the entire distance between the two plates of the same pair.
- the distance between the two plates of the same pair is for example less than one cm, being in particular of the order of a few mm.
- the exchanger may comprise an input zone of the unit or units of the second circuit and an output zone of the unit or units of the second circuit.
- the inlet zone and the outlet zone can be located at the same height along the longitudinal axis of the exchanger.
- the entrance zone and the exit zone can each form a collector. Each collector is in particular connected to one of the accesses to the interior of the enclosure to allow the arrival in the exchanger of the fluid intended to recover the heat released by the reaction.
- One of the entry zone and the exit zone may be radially outer, with respect to the longitudinal axis, to the other of the entry zone and the exit zone.
- exit zone and the inlet zone may be axially between two plates, one of these plates being in particular the above plate not crossed by the second conduits interconnected by the junctions.
- the exchanger may comprise a plurality of fins. These fins can improve heat transfer within the exchanger.
- Each fin may contact at least one second conduit.
- Each fin also plunges into the reservoir, to promote the transfer of heat induced by the exothermic reaction in the reservoir to the heat transfer fluid in the second conduit or pipes.
- the same wing can contact a single second or more pipes, or even every second pipe.
- Each fin may not come into contact with the first pipes, in order to avoid transmitting the heat of the exhaust gases to the fluid flowing in the second circuit when the exhaust gases flow through the first circuit. This can also make it possible to favor the heat transfer by the fins to the fluid in the second circuit and not to the first ducts when the exothermic reaction occurs in the tank.
- the latter is in the form of a thin support in which holes are provided.
- the thickness of this support is for example less than one cm, in particular 0.8 mm. Holes receive according to this example second lines without clearance while other holes receive first lines with clearance. In this way, the first pipes are not in contact with the fin while the second pipes are.
- the distance separating the first pipes of the nearest fin can be between one mm and two mm.
- the holes in the fins for the pipes may be circular.
- the fins are arranged
- each fin In a transverse plane, in particular perpendicular to the longitudinal axis of the exchanger, each fin may extend substantially between two opposite edges of the enclosure.
- each fin may have a section smaller than the section of the exchanger between these two edges.
- a free space can thus exist in this plane, this free space to communicate with each other the different compartments of the tank, thus facilitating the filling of the reservoir reagent.
- each fin may extend only between a central zone and an edge of the enclosure.
- a first fin extends between said central zone and a first edge of the enclosure while a second fin extends between the central zone and a second edge of the enclosure, said first and second edges being opposite to one another. one to the other in relation to the central area.
- the first and second fins can then be arranged alternately along the longitudinal axis, which can promote the diffusion of water into the reservoir to cause the reaction with the reagent.
- each fin may have a section smaller than the section of the exchanger between the central zone and the edge of the enclosure. The fin extends for example on less than half of the section of the enclosure. The part of the half of the section of the enclosure not occupied by the fin may allow communication between the different compartments of the reservoir, facilitating the filling of the reservoir with reagent.
- each fin may have a semicircular shape with the exception of a cutout, for example made on its outer periphery.
- the section of each fin is less than half a section of the enclosure due to the cutting.
- each fin may have a section smaller than the section in this plane of the part of the exchanger in which it is disposed.
- the ratio between the fin section and the section of the exchanger above can be obtained by machining fins already manufactured or from the manufacture of the fins.
- the fins can thus be manufactured to have a section adapted to this ratio, for example by molding.
- the first pipes may or may not have the same cross-sectional dimensions as the second pipes.
- Another subject of the invention is a method of heating a component of a vehicle, in particular a heat engine, using the exchanger above, in which process :
- reaction fluid in particular water
- a reagent having a reaction with said reaction fluid, in particular water, an exothermic reaction has been introduced
- the heated heat transfer fluid is brought after passing through the second circuit near the component to be heated.
- the method may comprise a regeneration step of the reagent, in which exhaust gases are circulated in the first circuit.
- the invention further relates, in another of its aspects, to a junction system between at least two ducts, comprising: a pair of plates arranged facing each other and defining a gap therebetween, one of the plates comprising at least two openings through which each duct opens respectively into space, and
- the bracelet being disposed in said space so as to surround said openings to form a sealed communication zone between the two pipes.
- the above aspect of the invention provides a circuit comprising two successive pipes in which a fluid circulates without the need to machine said pipes to obtain a bent shape.
- the two plates can be parallel to each other.
- junctions can be formed using the two plates, each junction requiring a clean bracelet.
- the above junction system is not limited to the junction of two lines only but may allow one or more lines to be connected to one or more other lines.
- the bracelet can in this case be arranged in the space so as to surround these three openings.
- the system can thus make it possible to connect a variable number of pipes to each other, which is difficult, if not impossible, by machining the pipes.
- FIG. 1 is an elevational view of a reactor according to an embodiment of the invention
- FIG. 2 is a view from above of the reactor shown in FIG. 1,
- FIG. 3 schematically represents a unit of the second circuit
- FIGS. 4 to 7 show several stages when joining two pipes
- FIGS. 8 and 9 are respectively front and perspective views of a longitudinal end of the exchanger
- FIGS. 10 and 11 represent two examples of fins that can be used in the exchanger
- FIG. 12 is an isolated representation of another example of a fin
- FIG. 13 very schematically represents the exchanger of FIG. 1 provided with a plurality of fins in accordance with that shown in FIG. 12, and FIG. 14 schematically represents a heat engine heating system comprising the exchanger described with reference to Figures 1 to 13.
- FIG. 1 schematically shows a heat exchanger 1 according to an exemplary implementation of the invention.
- This heat exchanger 1 has in this example a substantially cylindrical shape of longitudinal axis X with a section perpendicular to the axis X which is circular.
- the heat exchanger 1 is intended in the example to be used for heating a vehicle engine before or during its start, as will be described later with reference to Figure 14.
- the exchanger 1 comprises an enclosure 2, for example made of steel, inside which are disposed a first circuit 3, a second circuit 4 and a reservoir 5.
- the reservoir 5 can be formed by the interstices provided in the inside the chamber 2 between the pipes belonging to the first circuit 3 or the second circuit 4.
- the chamber 2 is provided with access to its interior.
- Three ports 8 communicate for example with the tank 5 to fill the latter in a reagent Z and / or to supply the tank 5 with reaction fluid with the reagent, for example in water.
- One of the accesses 8 can be used to measure the temperature in the enclosure, for example.
- Two accesses 9 may be arranged at the same longitudinal end of the enclosure 2, on two opposite sides thereof.
- One of the ports 9 may allow a heat transfer fluid, for example brine, to enter the second circuit 4 while the other access 9 allows the fluid having circulated in the second circuit 4 to exit from this circuit.
- a heat transfer fluid for example brine
- two other accesses 10 arranged axially can be provided, these accesses allowing the flow of exhaust gas along the X axis in the first circuit 3 of the exchanger 1.
- the access number 8, 9 and 10 mentioned above is not limiting.
- the enclosure 2 may comprise, as in the example described, a cover allowing, when removed, to access the interior thereof. In Figure 2, the lid is removed, so that we can see fins 11 which will be described below.
- the reservoir 5 receives zeolite.
- the tank may have a capacity that allows it to receive several kg of zeolites, for example between one and six kg of zeolite, in particular two kg of zeolite.
- the zeolite used may be in the form of anhydrous beads before reacting with water.
- the amount of zeolite may be sufficient so that the zeolite in the reservoir is not further than the first circuit 3 by more than fifteen millimeters.
- FIG. 3 is an example of a second circuit 4 disposed in the enclosure 2.
- This second circuit 4 may comprise a plurality of units 12 which may be in the form of a sheet of which only one is represented in FIG.
- the second circuit 4 comprises four units 12.
- Each unit 12 contains a succession of second conduits 13 arranged substantially parallel and connected at their ends by junctions 15 which will be described later.
- Each second conduit 13 may be substantially the same size.
- Each pipe 13 has for example a circular section and an internal diameter of between six and eight mm with a wall thickness of less than 0.8 mm.
- the units 12 can be superimposed in the enclosure 2.
- Each junction 15 may be formed by machining the conduits 13 to give them a bent shape.
- a junction 15 may connect two second rectilinear conduits 13, as described with reference to FIGS. 4 to 8.
- the junction 15 between two second pipes 13 may be obtained by means of a pair of plates 20 and 21.
- Each of these plates 20 or 21 may be made of steel and have a thickness of less than 0.5 mm.
- Each plate may have an oval or circular shape, this shape allowing it to be received in the enclosure 2.
- These two plates, which are here parallel, define between them a space E.
- the distance between the plates 20 and 21 is by example less than 1 cm, being in particular of the order of 5 mm.
- the plate 21 is disposed between the plate 20 and the longitudinal end 29 closest to the enclosure 2.
- the plate 20 comprises holes 22 allowing the adapted passage of the second conduits 13 connected by the junctions 15. This plate 20 receives the corresponding longitudinal ends of the two pipes 13, each of these longitudinal ends being disposed in a hole 22.
- a bracelet 23 is fixed on this plate 20, for example by brazing, so as to delimit externally a portion 26 of the space E, the two holes 22 opening into this portion 26.
- the second plate 21 of the pair is then brought to contact of the bracelet 23, then fixed, in particular soldered, to the bracelet 23, to close the portion 26.
- the plate 20 is traversed at the same time by the ends of the second pipes 13 interconnected by the junctions and by the first pipes 28 of the first circuit 3 in which the gases can circulate.
- the first pipes 28 can be brazed on each plate 20 and 21 while the second pipes 13 are then brazed only on the plate 20.
- the plate 21 not traversed by the second pipes 13 connected by the junctions 15 is represented in transparency for the sake of clarity of the drawing.
- junction 15 which has just been described may exist at each longitudinal end of second conduits 13 to form the ply shown in FIG. 3.
- the exchanger 1 comprises for example two pairs of plates 20 and 21, each of these pairs being located at a longitudinal end 29 of the exchanger. All the junctions 15 of the second circuit 4 u level of each longitudinal end of the exchanger 1 can be formed using one or other of these pairs of plates.
- the accesses 9 open into a space E ', different from the space E mentioned above, and which is in the example of these figures defined axially by the plate 21 and by another plate 27 arranged between the end
- the plate 21 is then between the plate 20 and the plate 27.
- the accesses 9 open into the space E 'in a diametrically opposite manner.
- two walls 30 and 31 connect the two plates 21 and 27 between them. These walls share the space E 'between the two plates 21 and 27 in three parts.
- a first portion 35 predominantly occupies a central zone of the space E 'with the exception of an extension 36 communicating with one of the accesses 9. This first portion is surrounded externally by the wall 30.
- a second part 37 occupies mainly a median zone of this space E 'with the exception of an extension 38. This second part is separated from the first part 35 by the wall 30.
- a third portion 39 occupies the periphery of the space E 'not occupied by the extensions 36 and 38. This third portion 39 is radially between the wall of the enclosure 2 and the wall 31 and communicates with the other access 9.
- the first part 35 defines in the example considered an outlet manifold for the fluid.
- the latter leaves the first part 35 via the access 9.
- the plate 21 farthest from the longitudinal end 29 is provided with holes 40 in each of which is disposed the end of a second pipe 13 forming an outlet of unit 15.
- This plate is also provided with holes allowing the passage of the first pipes 28.
- the plate 27 has only the holes to allow the passage of the first pipes 28. The fluid from the units 15 is thus collected in the first part 35 before leaving the interchange through access 9.
- the third portion 39 defines an inlet manifold for the fluid.
- the plate 21 has in fact a plurality of holes 42 in each of which is disposed the end of a second pipe 13 forming the inlet of a unit 15.
- the second portion 37 is devoid of access 9 but the first conduits 28 can pass therethrough.
- the fins 11 may be arranged along the entire length of the enclosure 2 or not. These fins 11 may be supports arranged perpendicularly to the longitudinal axis X with a pitch p between constant or not. The fins 11 then divide the tank 5 into compartments 53. The thickness of each fin 11 may be less than 0.8 mm and the pitch p between fins 11 may be between 4 and 5.5 mm, whether this step is constant or not. When it is not constant, the pitch p can nevertheless remain between 4 and 5.5 mm.
- the section perpendicular to the axis X of the enclosure 2 is circular and each fin 11 extends over less than half of said circular section, between a central zone of the enclosure including the X axis and an edge of the enclosure 2.
- Two consecutive wings along the X axis can be arranged alternately with respect to the X axis, that is to say that a fin 11 disposed on one side of the X axis is flanked by two fins 1 1 arranged on the other side of the X axis, as can be seen in Figure 11.
- each fin 11 can come into contact with a plurality of second conduits 13. These second conduits 13 can pass without clearance holes 50 formed in the fins 11. Again in the example shown, the fins 11 do not contact the first lines 28 , the latter being received in holes 51 formed in the fins 11 and having a larger size than the outer diameter of the first pipes 28. The first pipes 28 are then not held in the chamber 2 by the fins 11.
- each fin 11 may occupy, in a plane perpendicular to the longitudinal axis X, less than the whole of the half section of the enclosure 2.
- the fins 11 may all have the same shape and can be two in two be arranged in the same way along the axis X so that a passage 55 is provided along the entire enclosure 2 by the portion of each half section of the enclosure 2 no occupied by the fins 11.
- the passage 55 may be arranged along the axis X and be opposite the accesses 8 to the reservoir 5. This passage 55 allows communication between the different compartments 53 of the reservoir 5, facilitating its filling reagent Z.
- the heat exchanger 1 is part of a heating system 100 of a heat engine.
- This system further comprises the exhaust line 101, a circuit 102 conveying the heat transfer fluid to the heat engine and a condenser 103.
- the condenser 103 is connected to the ports 8 towards the inside of the enclosure 2 via a valve 104.
- the exchanger 1 may not be traversed by the exhaust gas, the exhaust line 101 having for this purpose a bypass 106 then traveled by the exhaust gas.
- Regeneration of the zeolite can then be performed.
- the exhaust gases are then directed through the exchanger 1, passing through the first circuit 3 between the two ports 10.
- the exhaust gases give off a heat transferred through the pipes 28 to the zeolite whose pores filled with water are desorbed.
- the water vapor enters the condenser 103 where it is condensed.
- the water and the zeolite are ready to react again together to heat the engine at a next start.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014555287A JP2015510575A (ja) | 2012-02-03 | 2013-01-31 | 特に熱機関を備える車両用の熱交換器 |
EP13706605.6A EP2810011A1 (fr) | 2012-02-03 | 2013-01-31 | Echangeur thermique, notamment pour vehicule comprenant un moteur thermique |
CN201380012414.XA CN104160233A (zh) | 2012-02-03 | 2013-01-31 | 特别是用于包括热机的车辆的热交换器 |
KR1020147024465A KR20140131341A (ko) | 2012-02-03 | 2013-01-31 | 특히 열 엔진을 포함하는 차량을 위한 열교환기 |
US14/375,555 US20140373798A1 (en) | 2012-02-03 | 2013-01-31 | Heat exchanger, in particular for a vehicle comprising a heat engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1251013A FR2986608B1 (fr) | 2012-02-03 | 2012-02-03 | Echangeur thermique, notamment pour vehicule comprenant un moteur thermique |
FR1251013 | 2012-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013114045A1 true WO2013114045A1 (fr) | 2013-08-08 |
Family
ID=47754796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2013/050202 WO2013114045A1 (fr) | 2012-02-03 | 2013-01-31 | Echangeur thermique, notamment pour vehicule comprenant un moteur thermique |
Country Status (7)
Country | Link |
---|---|
US (1) | US20140373798A1 (fr) |
EP (1) | EP2810011A1 (fr) |
JP (1) | JP2015510575A (fr) |
KR (1) | KR20140131341A (fr) |
CN (1) | CN104160233A (fr) |
FR (1) | FR2986608B1 (fr) |
WO (1) | WO2013114045A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014116805A2 (fr) * | 2013-01-25 | 2014-07-31 | Laars Heating Systems Company | Échangeur de chaleur ayant une configuration compacte |
CA2918211A1 (fr) | 2013-07-12 | 2015-01-15 | Laars Heating Systems Company | Echangeur de chaleur comportant des tubes d'echange de chaleur agences de facon arquee et lineaire |
CN104533686A (zh) * | 2014-12-23 | 2015-04-22 | 泰豪科技股份有限公司 | 一种发动机低温环境快速辅助预热装置 |
US20170356674A1 (en) * | 2016-06-13 | 2017-12-14 | Laars Heating Systems Company | Water management header for a boiler or water heater |
CN106568339B (zh) * | 2016-10-20 | 2019-08-13 | 贺业强 | 多重防泄漏的换热器及设置有该换热器的热交换设备 |
KR102463697B1 (ko) | 2016-12-14 | 2022-11-07 | 현대자동차주식회사 | 차량용 열교환기 |
KR20180068481A (ko) | 2016-12-14 | 2018-06-22 | 현대자동차주식회사 | 응축기 일체형 저장탱크 |
KR102452541B1 (ko) * | 2016-12-14 | 2022-10-07 | 현대자동차주식회사 | 차량용 열교환기 |
JP6834929B2 (ja) * | 2017-12-14 | 2021-02-24 | トヨタ自動車株式会社 | Egrクーラ |
JP7178226B2 (ja) * | 2018-09-26 | 2022-11-25 | 古河電気工業株式会社 | 排気ガス暖機装置 |
Citations (6)
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US3884297A (en) * | 1973-02-12 | 1975-05-20 | Automotive Environmental Syste | Annular flow heat exchanger |
WO2003073031A1 (fr) * | 2002-02-26 | 2003-09-04 | Wärtsilä Finland Oy | Systeme d'echangeur thermique et procede utilise dans un echangeur thermique |
WO2005031241A1 (fr) * | 2003-09-29 | 2005-04-07 | Barlane Pty Ltd | Echangeur de chaleur a ecoulement turbulent |
DE102008044711A1 (de) * | 2008-08-28 | 2010-03-04 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Kombination aus Wärmetauscher und Katalysator als Komponente eines Abgassystems |
US20110131961A1 (en) * | 2009-12-04 | 2011-06-09 | Hyundai Motor Company | Exhaust heat recovery device |
WO2011140616A2 (fr) * | 2010-05-11 | 2011-11-17 | Atlas Copco Airpower, Naamloze Vennootschap | Dispositif de compression et de dessication de gaz |
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US5456093A (en) * | 1989-07-28 | 1995-10-10 | Uop | Adsorbent composites for sorption cooling process and apparatus |
US5456039A (en) * | 1994-06-27 | 1995-10-10 | Pisoni; Henry F. | Fishing lure |
US6200536B1 (en) * | 1997-06-26 | 2001-03-13 | Battelle Memorial Institute | Active microchannel heat exchanger |
US5943859A (en) * | 1997-09-18 | 1999-08-31 | Isuzu Ceramics Research Institute Co., Ltd. | Natural gas reforming apparatus, oxygen eliminating apparatus provided in the same apparatus, and natural gas reforming apparatus-carrying gas engine |
DE19900965A1 (de) * | 1999-01-13 | 2000-07-20 | Volkswagen Ag | Absorptionsklimaanlage |
US20110146939A1 (en) * | 2008-06-16 | 2011-06-23 | Carbon Zero Limited | Energy absorption and release devices and systems |
KR101072329B1 (ko) * | 2009-11-11 | 2011-10-11 | 현대자동차주식회사 | 열교환기 |
DE102010031852A1 (de) * | 2010-07-22 | 2012-01-26 | J. Eberspächer GmbH & Co. KG | Abgasanlage mit reaktivem Heizsystem |
-
2012
- 2012-02-03 FR FR1251013A patent/FR2986608B1/fr not_active Expired - Fee Related
-
2013
- 2013-01-31 WO PCT/FR2013/050202 patent/WO2013114045A1/fr active Application Filing
- 2013-01-31 KR KR1020147024465A patent/KR20140131341A/ko not_active Application Discontinuation
- 2013-01-31 US US14/375,555 patent/US20140373798A1/en not_active Abandoned
- 2013-01-31 CN CN201380012414.XA patent/CN104160233A/zh active Pending
- 2013-01-31 JP JP2014555287A patent/JP2015510575A/ja active Pending
- 2013-01-31 EP EP13706605.6A patent/EP2810011A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3884297A (en) * | 1973-02-12 | 1975-05-20 | Automotive Environmental Syste | Annular flow heat exchanger |
WO2003073031A1 (fr) * | 2002-02-26 | 2003-09-04 | Wärtsilä Finland Oy | Systeme d'echangeur thermique et procede utilise dans un echangeur thermique |
WO2005031241A1 (fr) * | 2003-09-29 | 2005-04-07 | Barlane Pty Ltd | Echangeur de chaleur a ecoulement turbulent |
DE102008044711A1 (de) * | 2008-08-28 | 2010-03-04 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Kombination aus Wärmetauscher und Katalysator als Komponente eines Abgassystems |
US20110131961A1 (en) * | 2009-12-04 | 2011-06-09 | Hyundai Motor Company | Exhaust heat recovery device |
WO2011140616A2 (fr) * | 2010-05-11 | 2011-11-17 | Atlas Copco Airpower, Naamloze Vennootschap | Dispositif de compression et de dessication de gaz |
Non-Patent Citations (1)
Title |
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See also references of EP2810011A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140373798A1 (en) | 2014-12-25 |
EP2810011A1 (fr) | 2014-12-10 |
FR2986608A1 (fr) | 2013-08-09 |
KR20140131341A (ko) | 2014-11-12 |
FR2986608B1 (fr) | 2018-09-07 |
JP2015510575A (ja) | 2015-04-09 |
CN104160233A (zh) | 2014-11-19 |
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