EP3887741A1 - Échangeur de chaleur et système de refroidissement d'un fluide comprenant un tel échangeur de chaleur - Google Patents
Échangeur de chaleur et système de refroidissement d'un fluide comprenant un tel échangeur de chaleurInfo
- Publication number
- EP3887741A1 EP3887741A1 EP19839341.5A EP19839341A EP3887741A1 EP 3887741 A1 EP3887741 A1 EP 3887741A1 EP 19839341 A EP19839341 A EP 19839341A EP 3887741 A1 EP3887741 A1 EP 3887741A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- heat exchanger
- conduits
- heat exchange
- air
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 169
- 238000001816 cooling Methods 0.000 title claims description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 238000004378 air conditioning Methods 0.000 claims description 27
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 239000003570 air Substances 0.000 description 69
- 239000007788 liquid Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000011144 upstream manufacturing 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
- 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
- F28D7/10—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 one within the other, e.g. concentrically
- F28D7/106—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 one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/12—Forms of water tubes, e.g. of varying cross-section
- F22B37/125—Bifurcates
-
- 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
- F28D2021/0021—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for aircrafts or cosmonautics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
Definitions
- the invention relates to a heat exchanger, in particular a tubular heat exchanger for an air or rail transport vehicle.
- the invention also relates to a system for cooling a fluid comprising such a heat exchanger.
- the invention also relates to an air conditioning system for a cabin of an air or rail transport vehicle equipped with such a cooling system.
- An environmental control system for an aircraft cabin is intended to provide the cabin of the aircraft (which generally designates any interior space aircraft whose air pressure and / or temperature must be controlled, such as a passenger cabin, cockpit, hold, etc.) air at controlled pressure and / or temperature.
- At least one air / air heat exchanger which aims to cool the air taken from the propulsion engines of the aircraft by implementing heat exchanges between this flow of hot air and a flow d 'cold air.
- such a heat exchanger generally comprises a hot circuit and a transverse cold circuit configured to be able to ensure thermal exchanges between the air flow conveyed by the hot circuit (also designated below by the hot pass) and the flow cold air conveyed by the cold circuit (also designated below by the cold pass).
- the cold circuit can, for example, be supplied by an air flow taken from the secondary flow of the engine, known under the name of fan air, the temperature of which is close to the external environment of the aircraft, and which can therefore reach in flight temperatures of the order of -50 ° C. and a pressure of the order of 200 mbar.
- the cold circuit can also be supplied by a flow of air taken from an aircraft scoop which feeds an air channel, better known under the name of RAM air.
- the hot circuit can be supplied directly by the air taken from the propulsion engines or by air from the engines and already partially treated by equipment upstream of the air conditioning system.
- the hot circuit can be supplied with air taken from outside the aircraft and compressed by suitable compressors.
- heat exchangers used today on board aircraft consist of fin or plate type heat exchangers. These exchangers are formed by a heat exchange chamber of generally rectangular shape and include stacked layers of fins, for example corrugated, which form stacked circulation channels which extend alternately in directions perpendicular from layer to layer. 'other.
- the hot pass which feeds one face of the exchanger circulates in the channels of the different layers and the cold pass which feeds a perpendicular face of the exchanger circulates in the transverse channels interposed between two channels of the hot pass.
- This architecture makes it possible to insert each hot channel between two cold channels over the entire length of the exchanger and therefore to ensure heat exchanges between the two fluids.
- heat exchangers make it possible to cool the air taken from the engines or the ambient air compressed by dedicated compressors, before being treated by the other equipment of the air conditioning system in order to be able to supply the cabin of the aircraft.
- the cooling capacity of an exchanger is directly proportional to its size.
- the inventors have therefore sought a new solution making it possible to increase the exchange surfaces within the exchanger while minimizing the size of the exchanger.
- the inventors have in particular sought to develop a heat exchanger which can be used, not only in the context of air conditioning systems of a transport vehicle, such as an aircraft, but also in all types of cooling systems. requiring the cooling of a hot fluid from a source of hot fluid with a cold fluid from a source of cold fluid.
- the invention is not limited only to heat exchangers intended for air conditioning systems, but also to heat exchangers intended for all types of heat exchange applications.
- the invention aims to provide a heat exchanger which overcomes at least certain drawbacks of the known solutions.
- the invention aims in particular to provide, in at least one embodiment, a heat exchanger which makes it possible to optimize the exchange surfaces.
- the invention also aims to provide, in at least one embodiment, an exchanger which has a reduced bulk compared to existing heat exchangers.
- the invention also aims to provide, in at least one embodiment, an exchanger whose pressure drops are reduced.
- the invention also aims to provide, in at least one embodiment, an exchanger which can be embedded in a fluid circulation pipe to functionalize such a pipe and thus reduce the size of the system.
- the invention also aims to provide a system for cooling a hot fluid with a cold fluid equipped with a heat exchanger according to the invention.
- the invention also aims to provide an air conditioning system equipped with a heat exchanger according to the invention.
- the invention also aims to provide an air or rail transport vehicle equipped with an air conditioning system according to the invention.
- the invention relates to a heat exchanger comprising:
- a fluid circulation chamber comprising a fluid inlet and a fluid outlet intended to be supplied with a first fluid, said external fluid, brought to a first temperature
- a heat exchange matrix housed in said circulation chamber and formed of a plurality of heat exchange pipes each comprising at least one pair of conduits nested one inside the other, said to be internal conduit and external conduit respectively, extending along a direction, called longitudinal direction, and defining:
- a circulation channel for a fluid delimited by said inner duct, and adapted to be able to be supplied with a second fluid, called the inner fluid, brought to a second temperature, and
- each heat exchange pipe - comprises at least two pairs of nested conduits, said pairs being connected together by at least a transverse spacer.
- a heat exchanger according to the invention has a configuration particular with a heat exchange matrix formed of a plurality of heat exchange pipes housed in a fluid circulation chamber, at least one heat exchange pipe of which comprises at least two pairs of ducts nested one in the 'other.
- a heat exchange matrix configuration has the advantage of having a double heat exchange surface and thus of increasing the heat exchange surfaces while reducing the size of said heat exchanger.
- a heat exchanger comprises a chamber in which circulates a fluid brought to a first temperature.
- a plurality of heat exchange pipes each comprising at least one pair of conduits nested one inside the other is arranged in this chamber.
- Each tubing comprises at least one pair of conduits defined by an interior conduit housed in an exterior conduit respectively delimiting an interior channel and an inter-conduit intermediate channel.
- each channel (respectively the inner channel and the intermediate channel) can be supplied with a dedicated fluid.
- said exterior and interior conduits are nested one inside the other in order to allow the intermediate fluid to circulate in the intermediate channel delimited by the inter-conduits space and to the interior fluid to circulate in the delimited interior channel. through the interior duct.
- the inner conduit forms the heat exchange surface between the inner fluid and the intermediate fluid while the outer conduit forms the heat exchange surface between the outer fluid supplying the chamber and the intermediate fluid.
- the nested conduits therefore form a double heat exchange surface for the intermediate fluid.
- the intermediate fluid circulating in the intermediate duct can be heated or cooled (depending on the temperatures of the interior, intermediate and exterior fluids) both by the interior fluid circulating in the interior channel and by the exterior fluid circulating in the circulation chamber of fluid.
- This double heat exchange allowed by the particular structure of the exchanger according to the invention therefore makes it possible to cool and / or reheat the intermediate fluid with better efficiency than the systems of the prior art.
- the configuration of the nested conduits not only makes it possible to form a double heat exchange zone, but also to reduce the size of the exchanger.
- double heat exchange has the advantage of reducing the number of heat exchange pipes within an exchanger while benefiting from an exchange surface equivalent to that of an existing exchanger.
- the exchanger according to the invention makes it possible to increase the exchange surface compared to an existing exchanger and therefore to obtain a more efficient heat exchanger, with equivalent bulk, or to obtain, for equivalent performance, reduced bulk.
- said interior and exterior fluids intended to respectively supply said interior channel with a pair of nested conduits and said fluid circulation chamber come from the same source of fluid.
- said exterior and interior fluids are of the same nature and can be brought to the same temperature.
- the interior and exterior fluids thus enclose the intermediate fluid circulating in the intermediate channel.
- the intermediate fluid therefore undergoes heat exchanges of the same kind, both at the level of the internal wall delimited by the internal conduit and at the level of the external wall delimited by the external conduit.
- the exterior and interior fluid is the fluid of the cold pass and the intermediate fluid is the fluid of the hot pass.
- the cold pass thus makes it possible to cool the hot pass by circulating around it in the chamber and also at the center of the hot pass by circulating in the interior duct delimiting the interior channel.
- the intermediate fluid is thus cooled more efficiently since said nested conduits delimiting the inter-conduit space in which the intermediate fluid can circulate, are both in contact with a fluid brought to a lower temperature. In this case, the cooling of the intermediate fluid is facilitated and the cooling efficiency of said fluid is improved.
- the interior channel can communicate with said fluid circulation chamber so that the fluid circulating in said chamber is the same fluid circulating in said interior channel.
- Said inner pipe of the heat exchange pipe then opens directly into said fluid circulation chamber.
- the same supply system is sufficient to supply both the inner channel and said circulation chamber.
- the transverse spacer also designated in the text by "connecting spacer" arranged between the pairs of nested conduits can create turbulence within the fluid circulation chamber which improves the heat exchanges between the fluid outside circulating in the chamber and the intermediate fluid which circulates in the intermediate channels.
- the connecting spacer can also have a heat exchange functionality by conducting at least part of the heat captured from the external duct to the mixing chamber.
- a pipe according to the invention equipped with a spacer is rigid so that a plurality of pipes according to the invention allows, when the pipes are associated with each other, to form a compact matrix network of pipes of trades.
- the internal, intermediate and external fluid flows are air flows, originating respectively from a flow of hot air, for example taken from a propulsion engine of an aircraft and a flow d cold air, taken for example from outside the aircraft.
- each heat exchange tube - comprises at least two pairs of nested conduits whose said intermediate channels are supplied by the same intermediate fluid distributor.
- a distributor makes it possible to supply the different pairs of nested conduits of the heat exchange tubing.
- Such an intermediate fluid distributor is for example formed of a tube comprising an intermediate fluid inlet which splits into several tubes to form several sources of supply of intermediate fluid to the channels intermediaries.
- the distributor has a fluid inlet and two fluid outlets opening into each of the two intermediate channels of said two pairs of nested conduits.
- said distributor has a general shape of Y, the base of the Y forming the inlet of the intermediate fluid in the tubing and the two branches of the Y forming supply channels for the intermediate channels.
- Each distributor can be connected to the same supply system to facilitate the distribution of intermediate fluid in all of the distributors and subsequently in the intermediate channels of the various heat exchange pipes.
- the distributor has a fluid inlet and three fluid outlets opening into each of the three intermediate channels of the three pairs of nested conduits.
- a distributor according to this variant of the invention therefore makes it possible to supply a plurality of intermediate channels to a plurality of pairs of conduits by a single supply of intermediate fluid.
- At least one interior duct - in particular each interior duct - of at least one pair of nested conduits - in particular of each pair of nested conduits - passes through said intermediate fluid distributor.
- an intermediate fluid supply system can distribute said intermediate fluid in said intermediate channels through distributors.
- the supply of interior fluid can be done by a second supply system dedicated to the distribution of said interior fluid capable of supplying said interior channels which can extend outside the circulation chamber.
- each pair of nested conduits crosses said intermediate fluid distributor and opens into said circulation chamber.
- the interior conduits open directly into the fluid circulation chamber so that the supply of the fluid circulation chamber also allows the supply of the interior channels delimited by the interior conduits.
- At least one transverse spacer is provided.
- each transverse spacer - comprises at least one opening configured to allow the passage of said external fluid between said pairs of nested conduits connected by this spacer in a direction having an angle between 0 ° and 90 ° relative to said longitudinal direction.
- said transverse spacer comprises at least one opening to allow better circulation of said external fluid within the circulation chamber between the pairs of conduits.
- the external fluid is distributed homogeneously in said circulation chamber in order to promote heat exchanges between said external fluid and said intermediate fluid circulating in the intermediate channel of the pipes.
- each heat exchange tube - in particular each heat exchange tube - comprises at least one pair of nested conduits whose conduits are connected to each other by a junction rod which extends into the intermediate channel between the inner conduit and the outer conduit.
- each heat exchange pipe - comprises at least one pair of nested cylindrical conduits.
- conduits are cylindrical.
- a cylindrical conduit is understood in the mathematical sense of the term, that is to say that such a conduit is a solid generated by a straight line which moves parallel to itself on a generator.
- Such a generator can be square, circular, oval, etc.
- the nested conduits are cylindrical with a circular base.
- said cylindrical conduits are optimized to be arranged in a fluid circulation chamber which is preferably also cylindrical with a circular base.
- the heat exchanger then forms a cylindrical tubular exchanger which can be embedded in a cylindrical pipe.
- the tubular heat exchanger comprising a cylindrical chamber can be easily integrated within a cylindrical fluid circulation pipe.
- An exchanger according to this variant of the invention embedded in a cylindrical pipe, makes it possible to functionalize this pipe, and therefore to limit the size of the exchanger by accommodating it in equipment already present, thus freeing up space. outside the pipe.
- the cylindrical shape of the conduits also makes it possible to reduce the pressure forces which are exerted on the walls of the conduits nested by the fluids circulating inside and outside the conduits.
- the heat exchange pipes of a heat exchanger according to the invention can also have any shape.
- the pipes can for example be cylindrical, extending in a rectilinear fashion along a longitudinal direction, but nothing prevents the provision of other embodiments in which the pipes are curved, or draw spirals, or any other form.
- each heat exchange tube - comprises at least one pair of concentric nested conduits.
- This advantageous variant makes it possible in particular to homogenize the forces exerted on the conduits and to simplify the operations of nesting the conduits in one another.
- said heat exchanger further comprises a casing, said casing delimiting the fluid circulation chamber.
- the exchanger chamber is delimited by a casing which comprises at least a plurality of pipes arranged in said chamber so that the exchanger is integrated in a pipe, preferably cylindrical.
- the invention also relates to a system for cooling a fluid having a first temperature, called hot fluid, by a fluid having a second temperature, called cold fluid, comprising a hot fluid circuit adapted to be able to be supplied with hot fluid by a source of hot fluid, and a cold fluid circuit adapted to be able to be supplied with cold fluid by a source of cold fluid.
- a cooling system according to the invention is characterized in that it further comprises a heat exchanger according to the invention, said hot circuit supplying said intermediate channels and said cold circuit supplying said interior channels and said circulation chamber of said exchanger.
- a cooling system according to the invention can be implemented in all applications requiring cooling of a hot fluid with a cold fluid (cooling of electronics by a heat transfer fluid; cooling of air taken from a propellant engine for a system air conditioning; etc.).
- the fluids can be of the same nature (air / air or liquid / liquid) or of a different nature (air / liquid or liquid / air).
- said intermediate channels and said interior channels are supplied against the current by said hot and cold circuits respectively.
- the internal fluid circulates in the internal channel of each tubing counter-current to the intermediate fluid which circulates in the intermediate channel of each tubing, that is to say that the fluids each circulate in opposite directions.
- the external fluid can also circulate against the current of said intermediate fluid.
- the invention also relates to an air conditioning system for a cabin of a transport vehicle comprising at least one air cooling system according to the invention.
- the hot air circuit is for example supplied by air taken from a propulsion engine of the aircraft and said cold air circuit is for example taken from the secondary flow of the engine of the aircraft or the exterior of the aircraft.
- the invention also relates to an air, rail or motor vehicle comprising at least one propulsion engine, one cabin and at least one air conditioning system of said cabin, characterized in that the air conditioning system of the cabin is an air conditioning system according to the invention.
- the invention also relates to a heat exchanger, a fluid cooling system, an air conditioning system and an aircraft, characterized in combination by all or some of the characteristics mentioned above or below.
- FIG. 1 is a schematic sectional view of an exchanger according to an embodiment of the invention.
- FIG. 2 is a schematic perspective view of a plurality of heat exchange pipes forming the heat exchange matrix of an exchanger according to an embodiment of the invention.
- FIG. 3a is a schematic perspective view before of a tube of an exchanger according to an embodiment of the invention.
- FIG. 3b is a schematic rear perspective view of a tube of an exchanger according to an embodiment of the invention.
- FIG. 4a is a schematic perspective view before of a pipe of an exchanger according to another embodiment of the invention.
- FIG. 4b is a schematic rear perspective view of a tube of an exchanger according to another embodiment of the invention.
- FIG. 5 is a schematic view of a heat exchange matrix of an exchanger according to an embodiment of the invention.
- FIG. 6 is a schematic view of a heat exchange matrix of an exchanger according to an embodiment of the invention.
- FIG. 7 is a schematic view of an aircraft according to an embodiment of the invention.
- each element of the tubular heat exchanger is described as it is arranged when the exchanger is housed in an air circulation pipe which extends along a direction, called longitudinal direction, which coincides with the direction along which extend the heat exchange pipes of the exchanger. This configuration is notably shown in FIG. 1.
- the description considers that the heat exchanger is installed within an air conditioning system, it being understood that the exchanger can be used for other applications than the cooling of high temperature air, taken for example from a propulsion engine of an aircraft.
- Figure 1 schematically illustrates a tubular heat exchanger 10 embedded in a pipe 23 for air circulation.
- the exchanger may include a casing embedded in line 23.
- the exchanger 10 further comprises a matrix 30 of heat exchanges, housed in a fluid circulation chamber 20, and formed of a plurality of heat exchange tubes 31 extending in a longitudinal direction 70, which coincides with example with the direction along which the pipe 23 extends.
- the chamber 20 is supplied with air brought to a first temperature.
- This air is for example air taken from outside the aircraft.
- This fresh air is schematically represented by the arrow referenced 72a in FIG. 1.
- the heat exchange pipes 31 have, in the embodiment of FIGS. 2, 3a, 3b, 5 and 6, a Y shape, the base of the Y forming a distributor 50 for supplying intermediate channels, forming the branches of the Y, in an intermediate air brought to a second temperature, distinct from the temperature of the air supplying the chamber 20.
- This intermediate air is for example hot air taken from the propulsion engines of the aircraft.
- This hot air is schematically represented by the arrow referenced 71 in FIG. 1.
- the pipes 31 are also configured to have internal channels supplied with fresh air, which can be the same air as that which feeds the chamber 20. This air is schematically represented by the arrow 72b in FIG. 1.
- the interior channels can be supplied with air brought to another temperature distinct from the temperatures of the outside air and of the intermediate air.
- FIG. 2 illustrates in more detail a portion of the heat exchange matrix of an exchanger according to the invention.
- Each tubing comprises two pairs 32; 33 of conjugate concentric conduits connected to a distributor 50 of intermediate fluid.
- the distributor 50 includes an inlet 51 of intermediate fluid supplied by a supply system not shown in detail in the figures and two fluid outlets 52 for supplying the intermediate channels 32d and 33d of the pairs 32; 33 of ducts nested one inside the other.
- the two pairs 32, 33 of conduits are interconnected by means of a transverse spacer 40 which further comprises an opening 41 allowing the passage of the air circulating in the chamber 20.
- Figures 3a and 3b illustrate a Y-shaped tubing 31.
- the Y-shaped tubing 31 can be fabricated by an additive printing system, such as a 3D printer.
- the Y-shaped tube 31 comprises two pairs 32; 33 of ducts nested one inside the other, which are also concentric in the embodiment of the figures.
- Each pair of ducts is formed by two nested ducts, respectively an inner duct 32a; 33a and an outer conduit 32b; 33b.
- the inner conduits 32a; 33a delimit an internal channel 32c; 33c of indoor air circulation, which is for example cold air.
- the inter-duct space formed by the inner duct 32a; 33a and the outer conduit 32b; 33b defines an intermediate channel 32d; 33d of circulation of an intermediate air, which is for example hot air.
- the outer conduit 32b; 33b is connected to the two fluid outlets 52 of the distributor 50 so that the intermediate fluid supplying the distributor through the inlet 51 is distributed to the intermediate channels 32d; 33d.
- the inner channel 32c; 33c of each pair of conduits opens into the fluid circulation chamber 20 so that the air flow circulating in the internal channel is the air flow circulating in the chamber 20.
- the outlets 52 of the distributor 50 connected to the outer conduits 32b; 33b are crossed by the internal conduit 32a; 33a which opens directly into the chamber 20 for circulation of fluid so that the chamber 20 and the internal channels are supplied with the same flow of fresh air.
- the matrix 30 is formed of Y-shaped pipes 31 whose pairs of conduits 32; 33 concentric conjugates are parallel to each other.
- Tubing 31 in the form of Y are associated with each other to form a layer of tubing 31.
- Several layers can be stacked on each other so as to constitute a matrix network of tubing 31 within a chamber 20 to form the matrix 30.
- the layers of Y-shaped pipes 31 can be stacked so that the inlets 51 of the set of distributors 50 are staggered with respect to each other; thus creating spaces for the passage of the external fluid circulating in the chamber 20.
- Figures 4a and 4b illustrate a tubing according to another embodiment of the invention.
- the tubing comprises a distributor 50 and three pairs of nested conduits 32, 33, 34 one inside the other.
- the distributor 50 supplies the three pairs 32, 33, 34 of conduits in parallel from a single supply to the distributor.
- a tube can comprise four or more pairs of nested conduits.
- FIG. 5 a distinction can be made on either side of the inlet 51 of the distributor 50, the internal channels 32c and 33c in which the internal fluid circulates which also supplies the chamber 20 in which the exchange matrix 30 is housed thermal, and not shown in this figure.
- FIG. 6 schematically illustrates the pairs of conduits 32; 33 nested and in particular the outer conduits 32b and 33b which are connected together by G transverse spacer 40.
- the heat exchanger 10 can be integrated into an air conditioning system 62.
- the pipes 31 as illustrated are cylindrical and thus make it possible to obtain a cylindrical matrix 30 which can be housed in a chamber 20 delimited by a cylindrical casing, which can be integrated in a cylindrical air circulation duct and in particular in an air conditioning system 62 fitted to an aircraft 60.
- the air conditioning system 62 comprises a hot circuit and a cold circuit intended to supply the tubular exchanger according to the invention.
- the intermediate fluid is the fluid conveyed by the hot circuit and is for example air taken from the propulsion engines 61 of the aircraft.
- the cold circuit which makes it possible to supply the internal fluid and the external fluid is for example an air circuit taken from the secondary flow of the engine or an air taken from outside the aircraft.
- the tubular heat exchanger 10 can be directly embedded in an air circulation pipe and in particular in an air conditioning system 62 which equips an aircraft 60. According to this embodiment, the size of the exchanger 10 is thus limited while having an increased heat exchange surface with a system of nested conduits allowing a double heat exchange.
- the present invention has been described in connection with an aeronautical application, in particular for an air conditioning system of an aircraft cabin.
- a heat exchanger according to the invention can be implemented, not only in the context of air conditioning systems of a transport vehicle, such as an aircraft, but also in all types of heating systems. cooling requiring the cooling of a hot fluid from a source of hot fluid with a cold fluid from a source of cold fluid.
- a heat exchanger according to the invention can equip not only systems as described in application EP3342709 in the name of the applicant, but also systems as described in applications EP3190282, WO201634830, EP3392146, WO2018122334, FR2894563 or FR3051894. This list is of course not exhaustive and is cited only to allow a person skilled in the art to perceive the application potential of a heat exchanger according to the invention.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1871990A FR3088994B1 (fr) | 2018-11-28 | 2018-11-28 | Échangeur de chaleur et système de refroidissement d’un fluide comprenant un tel échangeur de chaleur |
PCT/FR2019/052781 WO2020109707A1 (fr) | 2018-11-28 | 2019-11-22 | Échangeur de chaleur et système de refroidissement d'un fluide comprenant un tel échangeur de chaleur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3887741A1 true EP3887741A1 (fr) | 2021-10-06 |
EP3887741B1 EP3887741B1 (fr) | 2022-08-31 |
Family
ID=66049274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19839341.5A Active EP3887741B1 (fr) | 2018-11-28 | 2019-11-22 | Échangeur de chaleur et système de refroidissement d'un fluide comprenant un tel échangeur de chaleur |
Country Status (6)
Country | Link |
---|---|
US (1) | US11768036B2 (fr) |
EP (1) | EP3887741B1 (fr) |
CN (1) | CN113272612B (fr) |
ES (1) | ES2927999T3 (fr) |
FR (1) | FR3088994B1 (fr) |
WO (1) | WO2020109707A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3855106B1 (fr) * | 2020-01-24 | 2022-12-14 | Hamilton Sundstrand Corporation | Échangeur de chaleur fractal comprenant canal |
EP3855107A1 (fr) * | 2020-01-24 | 2021-07-28 | Hamilton Sundstrand Corporation | Échangeur de chaleur fractal |
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US4307578A (en) * | 1980-04-16 | 1981-12-29 | Atlantic Richfield Company | Heat exchanger efficiently operable alternatively as evaporator or condenser |
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US6857185B2 (en) * | 2002-05-24 | 2005-02-22 | Iap Research, Inc. | Method for electromagnetically joining tubes to sheets in a tubular heat transfer system |
FR2889298B1 (fr) * | 2005-07-28 | 2010-11-26 | Airbus France | Echangeur thermique, ensemble propulseur, et aeronef comportant un tel ensemble propulseur |
FR2894563B1 (fr) | 2005-12-14 | 2009-06-05 | Liebherr Aerospace Toulouse Sa | Circuit et procede pour realiser des echanges thermiques par fluide caloporteur dans un systeme de controle environnemental d'aeronef. |
US8162040B2 (en) * | 2006-03-10 | 2012-04-24 | Spinworks, LLC | Heat exchanging insert and method for fabricating same |
US9134072B2 (en) * | 2010-03-15 | 2015-09-15 | The Trustees Of Dartmouth College | Geometry of heat exchanger with high efficiency |
EP2815086B1 (fr) * | 2012-02-16 | 2017-10-04 | Eberspächer Exhaust Technology GmbH & Co. KG | Dispositif pour l'utilisation de chaleur residuelle avec un cycle de rankine |
US20140251585A1 (en) * | 2013-03-05 | 2014-09-11 | The Boeing Company | Micro-lattice Cross-flow Heat Exchangers for Aircraft |
JP6316446B2 (ja) * | 2014-02-04 | 2018-04-25 | サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ | カーボネートの製造方法 |
CN106574824B (zh) * | 2014-07-25 | 2019-05-17 | 哈金森公司 | 诸如内部交换器的用于机动车空调系统的热交换器和包括该热交换器的系统 |
FR3025497B1 (fr) | 2014-09-05 | 2016-09-30 | Liebherr-Aerospace Toulouse Sas | Systeme de conditionnement d'air pour avion " plus electrique " |
US10995996B2 (en) * | 2014-10-07 | 2021-05-04 | Unison Industries, Llc | Multi-branch furcating flow heat exchanger |
DE102015113432A1 (de) * | 2015-08-14 | 2017-02-16 | Karlsruher Institut für Technologie | Strömungsleitelemente in einem Kanal |
FR3046598B1 (fr) | 2016-01-11 | 2018-02-02 | Liebherr-Aerospace Toulouse Sas | Architecture electrique d'un aeronef a plaque de refroidissement |
FR3051894B1 (fr) | 2016-05-30 | 2019-04-26 | Liebherr Aerospace Toulouse Sas | Procede et dispositif de refroidissement d'au moins une charge chaude a bord d'un vehicule tel qu'un aeronef a boucle fluide partiellement reversible |
FR3053453B1 (fr) | 2016-06-29 | 2019-07-05 | Liebherr-Aerospace Toulouse Sas | Dispositif d'echange thermique comprenant au moins un dispositif raidisseur, systeme de conditionnement d'air et vehicule |
FR3061454B1 (fr) | 2016-12-29 | 2019-07-05 | Liebherr-Aerospace Toulouse Sas | Procede d'alimentation en air a temperature controlee d'une cabine de vehicule terrestre et vehicule terrestre |
FR3061479B1 (fr) | 2017-01-03 | 2019-05-24 | Liebherr-Aerospace Toulouse Sas | Procede et dispositif de controle environnemental d'aeronef alimente par de l'air de prelevement a pression intermediaire |
FR3065518B1 (fr) | 2017-04-20 | 2019-07-05 | Liebherr-Aerospace Toulouse Sas | Procede et dispositif de controle thermique d'une pluralite de cabines d'un vehicule |
-
2018
- 2018-11-28 FR FR1871990A patent/FR3088994B1/fr active Active
-
2019
- 2019-11-22 US US17/298,536 patent/US11768036B2/en active Active
- 2019-11-22 CN CN201980087669.XA patent/CN113272612B/zh active Active
- 2019-11-22 ES ES19839341T patent/ES2927999T3/es active Active
- 2019-11-22 WO PCT/FR2019/052781 patent/WO2020109707A1/fr unknown
- 2019-11-22 EP EP19839341.5A patent/EP3887741B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
CN113272612B (zh) | 2023-08-01 |
WO2020109707A1 (fr) | 2020-06-04 |
ES2927999T3 (es) | 2022-11-14 |
US11768036B2 (en) | 2023-09-26 |
US20220011049A1 (en) | 2022-01-13 |
FR3088994A1 (fr) | 2020-05-29 |
FR3088994B1 (fr) | 2020-12-25 |
CN113272612A (zh) | 2021-08-17 |
EP3887741B1 (fr) | 2022-08-31 |
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