EP3568654A1 - Dispositif d'échange de chaleur et circuit de climatisation correspondant - Google Patents
Dispositif d'échange de chaleur et circuit de climatisation correspondantInfo
- Publication number
- EP3568654A1 EP3568654A1 EP18710107.6A EP18710107A EP3568654A1 EP 3568654 A1 EP3568654 A1 EP 3568654A1 EP 18710107 A EP18710107 A EP 18710107A EP 3568654 A1 EP3568654 A1 EP 3568654A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- high pressure
- low pressure
- fluid
- inlet
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 114
- 239000003507 refrigerant Substances 0.000 claims abstract description 39
- 238000004891 communication Methods 0.000 claims description 18
- 239000002826 coolant Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 description 12
- 239000002274 desiccant Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000470 constituent Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
- F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
- F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
- F28D1/0341—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
-
- 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
- F28D1/0408—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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0093—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
- 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
- F25B2500/00—Problems to be solved
- F25B2500/18—Optimization, e.g. high integration of refrigeration components
Definitions
- the field of the invention is that of air conditioning circuits operating with a refrigerant.
- the invention relates to a device that integrates both an evaporator and an internal heat exchanger with characteristics making it suitable for optimized integration in an air conditioning circuit.
- the invention has many applications, particularly but not exclusively in the automotive field where the constraints related to the size of the onboard equipment are important.
- Air conditioning circuits operating with a refrigerant fluid are known. Such a circuit typically comprises, in the direction of circulation of the refrigerant fluid, a compressor, a condenser, an evaporator, an expander and an accumulator.
- An internal heat exchanger is a device allowing the refrigerant fluid to exchange heat with the same fluid, but in a different temperature and pressure state.
- the high pressure refrigerant fluid from the compressor is condensed in the condenser and then passes into a first portion of the internal exchanger. Then, the coolant is expanded by the expander.
- the low-pressure refrigerant leaving the expander then passes through the evaporator for evaporation, then through the accumulator, and into a second portion of the internal heat exchanger, before returning to the compressor.
- the hot fluid at high pressure exchanges heat with the cold fluid at low pressure.
- the internal exchanger ensures a heat exchange of the refrigerant at two different points of the air conditioning circuit.
- the evaporator makes it possible to produce a cold air flow, or air-conditioned, that can be sent, for example, into the passenger compartment of a motor vehicle.
- an air conditioning circuit comprises a large number of active elements, that is to say, capable of modifying the pressure and temperature conditions of the refrigerant, as well as a large number of connecting pieces. connecting in communication the fluid of the different active elements between them.
- the inlet and the outlet of the high pressure fluid of the internal heat exchanger and the inlet and the outlet of the low pressure fluid are often located in diametrically opposite positions. an end plate of the internal heat exchanger.
- the invention relates to a heat exchange device for an air conditioning circuit operating with a refrigerant, and comprising an evaporator and a heat exchanger of internal heat in the form of a unitary module of substantially parallelepiped shape.
- the device comprises at least one high pressure fluid inlet, a high pressure fluid outlet, a low pressure fluid inlet and a low pressure fluid outlet grouped in a connection zone disposed near a corner. of said unitary module.
- the invention proposes a novel and inventive solution for facilitating the integration of a heat exchange device, comprising an evaporator and an internal heat exchanger in the form of a unitary module, in an air conditioning circuit. full.
- the invention proposes to group in the upper part (ie in the part which is arranged upwards when the heat exchange device is mounted in a vehicle) the four inlet and outlet pipes high and low pressure. two internal circulation circuits of the coolant in its two pressure states.
- the unitary module has a front face and a rear face separated by a peripheral wall comprising an upper wall and a lower wall connected on either side by a side wall.
- the connection area is located at one end (high) of one of these side walls.
- connection of the heat exchange device to the complete air conditioning circuit is simplified for the operator, in particular the connection with the expander.
- This last element can thus be easily positioned, for example through the apron of a vehicle as is the case conventionally.
- the fluid inlets and outlets are distributed in pairs one above the other.
- said internal exchanger essentially consists of a stack of tanks, said tanks alternately belonging to: • a high pressure internal circulation circuit of said refrigerant in a high pressure state; and
- a reservoir of the high pressure internal circulation circuit said high pressure reservoir, having at least one high pressure inlet orifice and at least one high pressure outlet orifice of said refrigerant fluid in a high pressure state,
- a reservoir of the low pressure internal circulation circuit said low pressure reservoir, having at least one low pressure inlet orifice and at least one low pressure outlet orifice of said refrigerant fluid in a low pressure state,
- said internal heat exchanger further comprising an end plate comprising connecting means for connecting in fluid communication at least one of said high pressure ports and / or at least one of said low pressure ports to at least one of said high fluid inlet pressure, high pressure fluid outlet, low pressure fluid inlet and low pressure fluid outlet grouped in said connection zone.
- Said at least one high pressure inlet and outlet ports are disposed near a first end of said high pressure tank.
- Said at least one low pressure inlet and outlet ports are disposed near a second end of said low pressure tank;
- said first end of said high pressure reservoir being disposed facing a first end of said low pressure reservoir which is opposed to said second end of said low pressure reservoir
- said connecting means for connecting in fluid communication at least one of said high pressure ports or at least one of said low pressure ports to at least one of said high pressure fluid inlet, high fluid outlet pressure, low pressure fluid inlet and low pressure fluid outlet grouped in said connection zone.
- Said at least one high pressure inlet orifice is disposed near a first end of said high pressure reservoir and said at least one high pressure outlet orifice is disposed near a second end of said high pressure reservoir opposite said first end of said high pressure tank;
- Said at least one low pressure inlet orifice is disposed near a first end of said low pressure reservoir and said at least one low pressure outlet orifice is disposed near a second end of said low pressure reservoir opposite said first end of said low pressure tank,
- said first, respectively second, end of said high pressure tank being facing said second, respectively first, end of said low pressure tank when said low pressure tank is adjacent to said high pressure tank in said stack,
- said connecting means for connecting in fluid communication at least one of said high pressure inlet and outlet ports and at least one of said low pressure inlet and outlet ports to at least one of said fluid inlet high pressure, high pressure fluid outlet, low pressure fluid inlet and low pressure fluid outlet grouped in said connection zone.
- said end plate is a stamped plate having at least one channel intended to cooperate with at least one face of one of said tanks so as to constitute at least one tube intended for the flow of said refrigerant, said connecting means comprising said at least one least one tube.
- said internal exchanger has a depth of 38mm.
- the heat exchange device can easily be integrated into a standard HVAC (for "Heating, Ventilation and Air-Conditioning") housing.
- said reservoirs consist of stamped plates brazed together.
- said reservoirs comprise "internal fin” type heat exchange tabs.
- the calorie exchange is improved between the coolant in the low pressure state and the coolant in the high pressure state.
- the invention also relates to an air conditioning circuit comprising a heat exchange device according to any one of the aforementioned embodiments. 4 LIST OF FIGURES
- Figure 1 is a diagram showing an air conditioning circuit
- FIG. 2 illustrates a combined heat exchange assembly comprising an evaporator and an internal heat exchanger in the form of a conventional unitary module
- FIGS. 3a and 3b are diagrammatic views of elements constituting a "plate” type internal heat exchanger and an end plate according to an embodiment of the described technique
- Figure 4 is a schematic view of a plate-type internal heat exchanger comprising an end plate according to another embodiment of the described technique
- FIG. 5 is a schematic view of a heat exchange device in the form of a unitary module according to an embodiment of the technique. described.
- the general principle of the described technique consists of a heat exchange device for an air conditioning circuit operating with a refrigerant and comprising an evaporator and an internal heat exchanger in the form of a unit module of substantially parallelepiped shape.
- Such a heat exchange device comprises at least one inlet and a high pressure fluid outlet, a low pressure fluid inlet and outlet grouped together in a connection zone disposed near a corner of the unitary module.
- connection with the expander is simplified and the latter can be easily positioned, for example through the deck of a vehicle as is the case conventionally for such a heat exchange device.
- the air conditioning circuit 100 comprises a compressor 103, a condenser 105, an internal heat exchanger 107, an expander 109, an evaporator 111 and a desiccant bottle 113, these different elements being connected to each other by connecting pieces, such as than tubes, tubings, pipes or the like, so as to ensure a flow of refrigerant.
- the refrigerant fluid is typically a chlorinated and fluorinated fluid operating in a subcritical regime, such as -134a fluid, a mixture of HFO-1234yf and CF31, or any other refrigerant capable of operating under subcritical conditions.
- arrows illustrate the circulation of the refrigerant.
- the coolant sent by the compressor 103, passes through the condenser 105, from which it comes out in a state of high pressure and high temperature.
- the refrigerant then passes through the internal heat exchanger 107 through an internal circulation circuit called high pressure, then is expanded in the expander 109.
- the fluid Thus expanded is then conveyed to the evaporator 111, before joining the internal heat exchanger 107 in a state of low pressure and low temperature, it passes through a so-called high pressure internal circulation circuit.
- the desiccant bottle 113 is interposed between the condenser 105 and the internal heat exchanger 107.
- the low pressure coolant from the evaporator 111 exchanges heat with the same high pressure refrigerant from the condenser 105.
- the fluid gains again the compressor 103, and so on.
- such a combined heat exchange assembly is essentially composed of an evaporator 111 and an internal heat exchanger 107 contiguous to each other via respective contact faces so as to be in the form of a unitary module 200.
- the size of the overall device is reduced, as well as the cost of manufacture.
- the internal heat exchanger 107 is composed of a stack of tanks
- the first of these two internal circulation circuits is dedicated to the circulation of the refrigerant fluid in a high-pressure state, i.e. of the refrigerant fluid from the desiccant bottle 113 and to the expander 109.
- the second of these two internal circulation circuits is dedicated to the circulation of the refrigerant fluid in a low pressure state, ie refrigerant fluid from the expander 109 and to the compressor 103.
- a high pressure fluid inlet 210 makes it possible to connect the high pressure internal circulation circuit to the external circuit portion coming from the desiccant bottle 113 in fluid communication.
- a high-pressure fluid outlet 220 makes it possible to connect the high-pressure internal circulation circuit in fluid communication to the external circuit portion conveying the fluid to the expander 109.
- a low pressure fluid inlet 230 makes it possible to connect the low pressure internal circulation circuit to the external circuit portion coming from the expander 109 in fluid communication.
- a low-pressure fluid outlet 240 makes it possible to connect the low-pressure internal circulation circuit in fluid communication to the external circuit portion conveying the refrigerant fluid to the compressor 103.
- Such an internal heat exchanger 107 of the "plate” type consists of a superposition of stamped plates 307 brazed together so as to form the reservoirs 207.
- the tanks 207 thus stacked belong alternately to the high pressure internal circulation circuit, and to the low pressure internal circulation circuit.
- a reservoir of the high pressure internal circulation circuit said high pressure reservoir 207hp, has at least one high pressure inlet port 310 and at least one high pressure outlet orifice 320.
- Such orifices allow to put in fluid communication the high pressure tank 207hp with the next high pressure tank in the stack.
- the high-pressure inlet and high-pressure outlet ports 320 are disposed on the same side of the high-pressure tank 207hp, ie near a first end of the reservoir. high pressure 207hp.
- a "U" circulation of the refrigerant in the high pressure state is obtained in the high pressure reservoir 207hp (circulation illustrated by the arrows 325 in Figure 3a). More particularly, the circulation of the refrigerant in the high pressure state is via "U" tubes obtained by soldering between them stamped plates 307.
- a tank of the low pressure internal circulation circuit said low pressure tank 207bp, has a low pressure inlet port 330 and a low pressure outlet port 340. More particularly, the low pressure inlet ports 330 and low pressure output 340 are disposed on the same side of the low pressure tank 207bp, ie near a second end of the low pressure tank 207bp. In this way, a "U" circulation of the refrigerant in the low pressure state is also obtained in the low pressure reservoir 207bp (circulation illustrated by the arrows 335 in FIG. 3a), via channels obtained by stamping the stamped plates. 307.
- the first end of the high pressure reservoir 207hp is opposite a first end of the low pressure reservoir 207bp which is opposite the second end of the low pressure reservoir 207bp.
- the inlet orifices 310 and the high pressure outlet outlets 320 of the high pressure tanks are arranged opposite the inlet orifices 330 and low pressure outlets 340 of the low pressure tanks in the stack of tanks 207. .
- the inlet of high pressure fluid 210, respectively the high pressure fluid outlet 220, of such an internal heat exchanger 107 must be connected in fluid communication to the high pressure inlet port 310, respectively the high pressure outlet port 320, from the high pressure end tank into the stack.
- the low pressure input 230, respectively the low output 240 of such an internal heat exchanger 107 must be connected in fluid communication to the low pressure inlet port 330, respectively the low pressure outlet port 340, of the high pressure end tank into the stack.
- an end plate 300 comprising junction means for connecting in fluid communication at least one of the inlet ports 310 or outlet 320 of high pressure fluid and / or at least one of the orifices inlet 330 or outlet 340 of low pressure fluid to at least one of the high pressure fluid inlet 210, the high pressure fluid outlet 220, the low pressure fluid inlet 230 and the low pressure fluid outlet 240 which are grouped in a connection area (510).
- the heat exchange device comprising the evaporator 111 and the internal heat exchanger 107 being made in the form of a unitary module (500) of parallelepipedal shape, the connection zone (510) is arranged to near a corner of the unitary module as described below in relation to FIG.
- connection of the exchanger 107 with the external elements ie the desiccant bottle 113, the expander 109 and the compressor 103 is facilitated, in particular the connection with the expander.
- This last element can thus be easily positioned, for example through the apron of a vehicle as is the case conventionally.
- the end plate 300 comprises junction means for connecting, in fluid communication, the inlet orifice 310 and the outlet orifice 320 of the high pressure end tank in the tank stack 207 at the high pressure fluid inlet 210 and at the high pressure fluid outlet 220, respectively, of the internal heat exchanger 107.
- the end plate 300 is a stamped plate having at least one channel intended to cooperate with at least one side of one of said tanks so as to constitute at least one tube for the circulation of the refrigerant.
- the joining means comprise this or these tubes.
- the end plate 300 comprises previously integrated tubes or conduits prior to attachment to the end reservoir 207 in the tank stack 207.
- reservoirs 207 comprise "internal fin” type heat exchange pads 350 in order to optimize the heat exchange between the coolant in its low pressure state and in its high pressure state.
- the stacked tanks 207 alternately belong to the high pressure internal circulation circuit (illustrated by the long and short alternating dotted arrows), and to the low pressure internal circulation circuit (illustrated by the long uniform dotted arrows). .
- the internal heat exchanger 107 according to the embodiment illustrated in FIG. 4 is of the "countercurrent" type.
- a high pressure reservoir 207hp ' has a high pressure inlet port 310' disposed near a first end of the high reservoir pressure 207hp ', and a high pressure outlet orifice 320' disposed near a second end of the high pressure tank 207hp 'opposite its first end.
- a low pressure reservoir 207bp ' has a low pressure inlet port 330' disposed near a first end of this low pressure reservoir 207bp 'and a low pressure outlet 340' disposed therein. near a second end of the low pressure reservoir 207bp 'opposite its first end.
- first, respectively second, end of the high pressure reservoir 207hp ' is opposite the second, respectively first, end of the low pressure reservoir 207bp' when the low pressure reservoir 207bp 'in question is adjacent to the high pressure reservoir 207hp' in question in said stack.
- high pressure tanks 207hp 'and low pressure 207bp' arranged successively in the stack of tanks appear "head spades" when viewed from the point of view of their inlet and outlet ports.
- the end plate 300 comprises connecting means for connecting in fluid communication at least one of the inlet ports 310' and outlet 320 'high pressure and at least one of the orifices 330 'inlet and low pressure outlet 340', at least one of the high pressure fluid inlet 210, the high pressure fluid outlet 220, the low pressure fluid inlet 230 and the low pressure fluid outlet 240 grouped in the connection area (510).
- the connection of the exchanger 107 with the external elements ie the desiccant bottle 113, the expander 109 and the compressor 103
- the inputs / outputs to be connected to these elements being grouped in the same connection zone .
- the end plate 300 ' comprises connecting means making it possible to connect the low pressure outlet orifice 340' of the low pressure end tank in fluid communication.
- the end plate 300 ' is a stamped plate having at least one channel 400 intended to cooperate with at least one face of one of said tanks so as to constitute at least one tube intended for the circulation of the fluid. refrigerant.
- the joining means comprise this or these tubes.
- the end plate 300 comprises previously integrated tubes or ducts prior to attachment to the end tank in the tank stack.
- Such a heat exchange device in the form of a unitary module 500, here of substantially parallelepipedal shape, comprises an evaporator 111 and an internal heat exchanger 107 equipped with an end plate 300 'according to the invention.
- the high-pressure fluid inlet 210, the high-pressure fluid outlet 220, the low-pressure fluid inlet 230 and the low-pressure fluid outlet 240 are combined in the connection zone 510 disposed near the a corner of the unitary module.
- the connection of the heat exchange device in the form of a unitary module 500 with the other elements of the air conditioning circuit 100 is facilitated.
- the manufacture of an air conditioning circuit 100 based on such a heat exchange device 500 is facilitated compared to conventional solutions.
- the unitary module 500 has a front face and a rear face separated by a peripheral wall comprising an upper wall and a lower wall connected on either side by a side wall.
- the connection zone 510 is located at one (upper) end of one of these side walls formed by the end plate 300 '.
- the internal heat exchanger 107 has a depth of 38mm.
- a heat exchange device 500 comprising such an internal heat exchanger 107 within a standard HVAC box, without substantial modification of the latter.
Landscapes
- 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)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1751450A FR3063136B1 (fr) | 2017-02-23 | 2017-02-23 | Dispositif d'echange de chaleur et circuit de climatisation correspondant |
PCT/FR2018/050433 WO2018154250A1 (fr) | 2017-02-23 | 2018-02-23 | Dispositif d'échange de chaleur et circuit de climatisation correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3568654A1 true EP3568654A1 (fr) | 2019-11-20 |
EP3568654B1 EP3568654B1 (fr) | 2023-03-29 |
Family
ID=59745964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18710107.6A Active EP3568654B1 (fr) | 2017-02-23 | 2018-02-23 | Dispositif d'échange de chaleur et circuit de climatisation correspondant |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3568654B1 (fr) |
FR (1) | FR3063136B1 (fr) |
WO (1) | WO2018154250A1 (fr) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62293086A (ja) * | 1986-06-12 | 1987-12-19 | Nippon Denso Co Ltd | 積層型熱交換器 |
FR2916835B1 (fr) * | 2007-05-31 | 2010-07-30 | Valeo Systemes Thermiques | Module d'echange de chaleur pour un circuit de climatisation |
FR2960951B1 (fr) * | 2010-06-07 | 2013-07-26 | Valeo Systemes Thermiques | Systeme unitaire comprenant un condenseur, un echangeur de chaleur interne et bouteille d'une boucle de climatisation |
FR2960950B1 (fr) * | 2010-06-07 | 2013-12-06 | Valeo Systemes Thermiques | Systeme unitaire comprenant un condenseur, une bouteille et un echangeur de chaleur interne |
DE102010048015B4 (de) * | 2010-10-09 | 2015-11-05 | Modine Manufacturing Co. | Anlage mit einem Wärmeübertrager |
WO2017136707A1 (fr) * | 2016-02-03 | 2017-08-10 | Modine Manufacturing Company | Échangeur de chaleur à plaques permettant le refroidissement de batterie, et ensemble de plaques |
-
2017
- 2017-02-23 FR FR1751450A patent/FR3063136B1/fr active Active
-
2018
- 2018-02-23 WO PCT/FR2018/050433 patent/WO2018154250A1/fr unknown
- 2018-02-23 EP EP18710107.6A patent/EP3568654B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
FR3063136A1 (fr) | 2018-08-24 |
FR3063136B1 (fr) | 2021-04-30 |
EP3568654B1 (fr) | 2023-03-29 |
WO2018154250A1 (fr) | 2018-08-30 |
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