EP3882550A1 - Wärmetauschersystem, das zwei wärmetauscher umfasst - Google Patents

Wärmetauschersystem, das zwei wärmetauscher umfasst Download PDF

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Publication number
EP3882550A1
EP3882550A1 EP21155792.1A EP21155792A EP3882550A1 EP 3882550 A1 EP3882550 A1 EP 3882550A1 EP 21155792 A EP21155792 A EP 21155792A EP 3882550 A1 EP3882550 A1 EP 3882550A1
Authority
EP
European Patent Office
Prior art keywords
valve
pipe
bypass
exchanger
transfer fluid
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
Application number
EP21155792.1A
Other languages
English (en)
French (fr)
Other versions
EP3882550B1 (de
Inventor
Maxime Zebian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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Filing date
Publication date
Application filed by Airbus Operations SAS filed Critical Airbus Operations SAS
Publication of EP3882550A1 publication Critical patent/EP3882550A1/de
Application granted granted Critical
Publication of EP3882550B1 publication Critical patent/EP3882550B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • 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
    • F28D2021/0049—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for lubricants, e.g. oil coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/06—Derivation channels, e.g. bypass

Definitions

  • the present invention relates to an exchanger system which makes it possible to exchange calories between two fluids and which comprises two heat exchangers and a set of valves.
  • an exchanger system which comprises a heat exchanger in which a heat transfer fluid such as oil circulates and which is placed in an air flow to cool the heat transfer fluid.
  • the heat transfer fluid is circulated, for example, by a pump.
  • the heat exchanger comprises a network of channels which extends between an inlet and an outlet and in which the heat transfer fluid circulates.
  • the exchanger system also comprises a pipe which extends outside the heat exchanger and which passes through the installation to be cooled.
  • the heat transfer fluid By circulating in the pipe and passing through the installation, the heat transfer fluid is loaded with calories and by passing through the heat exchanger, the heat transfer fluid discharges its calories into the air.
  • the exchanger system generally comprises a bypass circuit with a bypass pipe between the inlet and the outlet and a bypass valve on the bypass pipe.
  • the bypass valve can be alternately open or closed.
  • An object of the present invention is to provide an exchanger system which comprises two heat exchangers and a set of valves where each is controlled alternately in opening or closing, depending on the conditions of use.
  • control unit is provided to control the opening of the third. valve and closing the second valve.
  • control unit is provided to control the closing of the first valve, the opening of the second valve and the closing of the third valve.
  • Figs. 1 to 3 show an assembly 20 which comprises an installation 10 and an exchanger system 100 according to the invention which is designed to cool said installation 10.
  • the exchanger system 100 includes a first heat exchanger 102a and a second heat exchanger 102b.
  • the exchanger system 100 includes a bypass line 104 which extends between an inlet 106a and an outlet 106b.
  • Each heat exchanger 102a-b has a first port 108a-b and a second port 110a-b.
  • an orifice 108a-b, 110a-b may be, depending on the modes of operation, an inlet or an outlet.
  • the exchanger system 100 also includes a first pipe 112a fluidly connected between the bypass pipe 104 and the first port 108a of the first heat exchanger 102a.
  • the connection to the bypass line 104 is made between the inlet 106a and the outlet 106b of the bypass line 104.
  • the exchanger system 100 also includes a second pipe 112b fluidly connected between the bypass pipe 104 and the first port 108b of the second heat exchanger 102b.
  • the connection to the bypass line 104 is made between the first line 112a and the outlet 106b of the bypass line 104.
  • the exchanger system 100 also includes a return line 114 which is fluidly connected to the two second ports 110a-b of the two heat exchangers 102a-b and to the bypass line 104.
  • the connection to the bypass line 104 is made between the second pipe 112b and the outlet 106b of the bypass pipe 104.
  • the exchanger system 100 also includes a first valve 116a which is mounted on the bypass pipe 104 between the first pipe 112a and the second pipe 112b.
  • the exchanger system 100 also includes a second valve 116b which is mounted on the bypass line 104 between the second line 112b and the return line 114.
  • the exchanger system 100 also includes a third valve 116c which is mounted on the return line 114 between the two second ports 110a-b and the bypass line 104.
  • Each valve 116a-c is controlled alternately in opening or closing by a control unit, for example of the processor type, which controls the position of each valve 116a-c according to the needs of the exchanger system 100.
  • the control unit can be internal to the exchanger system 100 or it can be a more general control unit to control the assembly 20.
  • the assembly 20 also includes a transfer pipe 22 which extends between the outlet 106b and the inlet 106a of the bypass pipe 104 passing through the installation 10.
  • a heat transfer fluid such as for example oil, circulates in the transfer pipe 22 and the exchanger system 100 by means of a pump 30 mounted for example on the transfer pipe 22. Passing through the installation 10, the heat transfer fluid is loaded with calories.
  • the oil is entrained in the transfer pipe 22 then depending on the position of the valves 116a-c, the oil will circulate between the inlet 106a and the outlet 106b of the bypass pipe 104 and in particular, optionally. , in heat exchangers 102a-b.
  • the heat exchangers 102a-b are arranged in an air flow F which allows the heat transfer from the heat transfer fluid to the air.
  • the first valve 116a is closed, the second valve 116b is open and the third valve 116c is closed.
  • the heat transfer fluid then circulates from the inlet 106a of the bypass pipe 104 successively through the first pipe 112a, the first exchanger 102a, the return pipe 114, the second exchanger 102b, the second pipe 112b, to join the return pipe. branch 104 and its outlet 106b through the second valve 116b.
  • the heat transfer fluid In the operating mode of the Fig. 1 , the heat transfer fluid successively passes through the two heat exchangers 102a-b for maximum cooling. In this mode, the flow rate and speed of the heat transfer fluid are maximized.
  • This operating mode is more particularly used when the temperature of the heat transfer fluid is above a high threshold.
  • the first valve 116a is open, the second valve 116b is closed and the third valve 116c is open.
  • the heat transfer fluid then circulates from the inlet 106a of the bypass pipe 104 through the first pipe 112a and the second pipe 112b through the first valve 116a, then through each exchanger 102a-b, the return pipe 114, for join the bypass line 104 and its outlet 106b through the third valve 116c.
  • the cooling is not maximum and the flow rate of the heat transfer fluid is shared between the two heat exchangers 102a-b and thus, for each heat exchanger 102a-b, the flow rate and the speed are halved.
  • the distance traveled by the heat transfer fluid in the heat exchangers 102a-b is halved compared to the previous operating mode, and the flow rate is also halved compared to the previous operating mode, which implies a reduced pressure drop by a factor of between four and eight compared to the previous operating mode.
  • This operating mode is more particularly used when the temperature of the heat transfer fluid is above a low threshold and below the high threshold above the low threshold.
  • This operating mode is also suitable for bringing the temperature up to start-up of the system, and in particular, for thawing the heat exchangers 102a-b.
  • the first valve 116a is open, the second valve 116b is open and the third valve 116c is closed.
  • the heat transfer fluid then circulates from the inlet 106a only in the bypass pipe 104 to reach the outlet 106b through the first valve 116a and the second valve 116b.
  • the temperature of the heat transfer fluid is below the low threshold and the heat transfer fluid does not pass through the heat exchangers 102a-b because it does not need to be cooled.
  • the mode of operation of the Fig. 3 corresponds to a bypass mode.
  • Switching to one or other of the three operating modes is carried out by the control unit, for example from the temperature of the heat transfer fluid measured by a temperature probe connected to the control unit.
  • the control unit is thus provided for, from the operating mode of the Fig. 3 , control the valves 116a-c to switch to the operating mode of the Fig. 2 , then optionally switch to the operating mode of the Fig. 1 .
  • control unit is provided to control the opening of the third. valve 116c and the closing of the second valve 116b.
  • control unit is provided to control the closing of the first valve 116a, the opening of the second valve 116b and the closing of the third valve 116c.
  • switching from the operating mode of the Fig. 1 to the operating mode of the Fig. 3 is also carried out through the operating mode of the Fig. 2 .
  • the various valves 116a-c are for example solenoid valves.
  • the first valve 116a is normally open, that the second valve 116b is normally closed, and that the third valve 116c is normally open.

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 Control Device (AREA)
EP21155792.1A 2020-02-14 2021-02-08 Wärmetauschersystem, das zwei wärmetauscher umfasst Active EP3882550B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2001461A FR3107343A1 (fr) 2020-02-14 2020-02-14 Systeme d’echangeur comportant deux echangeurs thermiques

Publications (2)

Publication Number Publication Date
EP3882550A1 true EP3882550A1 (de) 2021-09-22
EP3882550B1 EP3882550B1 (de) 2022-11-16

Family

ID=70228304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21155792.1A Active EP3882550B1 (de) 2020-02-14 2021-02-08 Wärmetauschersystem, das zwei wärmetauscher umfasst

Country Status (4)

Country Link
US (1) US20210254911A1 (de)
EP (1) EP3882550B1 (de)
CN (1) CN113267074A (de)
FR (1) FR3107343A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485653A (en) 2010-11-18 2012-05-23 Hamilton Sundstrand Corp Heat exchanger system
DE112014002672T5 (de) 2013-06-04 2016-02-18 Denso Corporation Fahrzeugwärme-Managementsystem
FR3051894A1 (fr) 2016-05-30 2017-12-01 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
FR3076086A1 (fr) 2017-12-27 2019-06-28 Commissariat A L'energie Atomique Et Aux Energies Alternatives Ensemble de production d'energie couplant une pile a combustible et un systeme thermodynamique reversible
EP3581497A1 (de) 2018-06-15 2019-12-18 Airbus Defence and Space Kühlsystem mit zwei wärmetauschern und fahrzeug mit einem kühlsystem

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2875309B2 (ja) * 1989-12-01 1999-03-31 株式会社日立製作所 空気調和装置とその装置に使用される熱交換器及び前記装置の制御方法
CN101133372B (zh) * 2005-02-02 2012-03-21 开利公司 用于热泵应用的平行流热交换器
US20110056668A1 (en) * 2008-04-29 2011-03-10 Carrier Corporation Modular heat exchanger
GB201104867D0 (en) * 2011-03-23 2011-05-04 Isentropic Ltd Improved thermal storage system
JP2014047992A (ja) * 2012-08-31 2014-03-17 Hitachi Ltd 蓄熱システム及びそれを備える発電システム
TWI697765B (zh) * 2019-03-13 2020-07-01 緯創資通股份有限公司 轉接裝置及包含其之散熱系統

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485653A (en) 2010-11-18 2012-05-23 Hamilton Sundstrand Corp Heat exchanger system
DE112014002672T5 (de) 2013-06-04 2016-02-18 Denso Corporation Fahrzeugwärme-Managementsystem
FR3051894A1 (fr) 2016-05-30 2017-12-01 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
FR3076086A1 (fr) 2017-12-27 2019-06-28 Commissariat A L'energie Atomique Et Aux Energies Alternatives Ensemble de production d'energie couplant une pile a combustible et un systeme thermodynamique reversible
EP3581497A1 (de) 2018-06-15 2019-12-18 Airbus Defence and Space Kühlsystem mit zwei wärmetauschern und fahrzeug mit einem kühlsystem

Also Published As

Publication number Publication date
CN113267074A (zh) 2021-08-17
EP3882550B1 (de) 2022-11-16
US20210254911A1 (en) 2021-08-19
FR3107343A1 (fr) 2021-08-20

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