EP3943858A1 - Trockener oder adiabatischer luftkondensator, der ein begrenzungssystem für kühlmittellecks umfasst - Google Patents

Trockener oder adiabatischer luftkondensator, der ein begrenzungssystem für kühlmittellecks umfasst Download PDF

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Publication number
EP3943858A1
EP3943858A1 EP21184657.1A EP21184657A EP3943858A1 EP 3943858 A1 EP3943858 A1 EP 3943858A1 EP 21184657 A EP21184657 A EP 21184657A EP 3943858 A1 EP3943858 A1 EP 3943858A1
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EP
European Patent Office
Prior art keywords
refrigerant
heat exchanger
face
fluid
containment
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
EP21184657.1A
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English (en)
French (fr)
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EP3943858C0 (de
EP3943858B1 (de
Inventor
Philippe Duhamel
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.)
Jacir SAS
Original Assignee
Jacir SAS
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Filing date
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Application granted granted Critical
Publication of EP3943858C0 publication Critical patent/EP3943858C0/de
Publication of EP3943858B1 publication Critical patent/EP3943858B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F28D1/0233—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 air flow channels
    • F28D1/024—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 air flow channels with an air driving element
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage

Definitions

  • the present invention relates to the field of cold generation, in particular condensation devices.
  • the present invention relates to refrigeration circuits.
  • a refrigeration circuit generally comprises successively a compressor, a condenser, an expansion valve and an evaporator.
  • the refrigeration circuits make it possible to efficiently and economically evacuate to an external environment heat generated by a device, for example an air conditioning installation, a refrigerator, or industrial processes.
  • the present invention finds a preferred application in so-called “dry” or “adiabatic” air condensers.
  • the condensation of the refrigerant is carried out by ventilation of an air flow A set in motion by one or more fans 2 on one or more heat exchange batteries 3 containing the refrigerant and configured to pass the refrigerant from a gaseous form F G to a liquid form F L .
  • the movement of the air fluid A is represented by arrows.
  • the adiabatic air condenser differs from the dry air condenser, illustrated on the figure 1 , in that it comprises a device 4 for humidifying the air upstream of the heat exchange coils 3.
  • the device 4 for humidifying the air comprises a medium 4a, a system 4b for sprinkling with a fluid, for example water, arranged above said media 4a and configured to moisten said media 4a and a system 4c for recovering or collecting moistening fluid after having passed through the media 4a.
  • a fluid for example water
  • the condensing coil or heat exchanger comprises a plurality of tubes and fins or micro-channels.
  • a refrigerant circulates in the tubes of the condensing coil.
  • the tubes thereof are connected to a refrigerant inlet manifold and to a refrigerant outlet manifold and according to the number of passes between them by 180° bends.
  • the connections of the tubes to the manifolds or to each other via 180° elbows are made by welding, which increases the risk of refrigerant leaks.
  • the refrigerant is very often harmful to the environment, in particular vis-à-vis the ozone layer and the greenhouse effect and/or toxic.
  • the preferred refrigerant to reduce its impact on the greenhouse effect and the ozone layer is ammonia (NH3).
  • NH3 ammonia
  • ammonia is particularly toxic and flammable.
  • the object of the present invention is therefore to overcome the above drawbacks and to improve so-called “dry” or “adiabatic” air condensers in order to control any leaks of refrigerant, in particular at the level of the heat exchange coils.
  • the subject of the invention is a dry or adiabatic air condenser in addition to at least one heat exchanger or heat exchange battery in which a refrigerant fluid circulates, and at least one refrigerant leak detection sensor.
  • the heat exchanger being delimited by a first face, for example front, and a second face, for example rear, opposite the first face.
  • the air condenser comprises a refrigerant leak containment system comprising a containment box mounted on at least one of the first or second face of the heat exchanger, said containment box defining with said face of the heat exchanger a housing closed.
  • the heat exchanger is, for example, mounted in an envelope delimited by side walls, a bottom and an upper wall.
  • at least one outer lateral side of the heat exchange battery forms a side wall of the casing of the air condenser.
  • closed casing means a casing or casing that is sealed against the external environment.
  • the air condenser comprises at least one sensor for detecting the presence of refrigerant in the containment box.
  • the sensor is mounted, for example, directly in the containment box.
  • the air condenser may comprise a spray system comprising a spray nozzle mounted in the containment box, said nozzle being configured to spray a neutralizing fluid by spraying when a refrigerant leak is detected by the detection sensor, in order to lower the refrigerant escaping from the coils towards the bottom of the corresponding box.
  • each of the containment boxes comprises a detection sensor.
  • the air condenser comprises at least one pumping member or pump, for example of the perylstatic type, configured to suck up the fluid present in the containment box, in particular refrigerant leaks.
  • the air condenser comprises at least one refrigerant inlet manifold and one outlet manifold of said refrigerant, each connected to the heat exchanger by at least one connection tube, each of the manifolds extending from a face of the heat exchanger.
  • the containment box is configured to surround at least one of the collectors, and in particular any connection bends between tubes.
  • the senor prefferably mounted at the outlet of the pump, that is to say remote from the casing, and mounted downstream of the pump.
  • the bottom of the containment box is connected to a leak fluid recovery tank containing the refrigerant escaped from the heat exchanger and the neutralization fluid sprayed by the spray nozzle.
  • the leak neutralization system comprises a line for supplying a neutralization fluid under high pressure, for example water, connected to the spray nozzle.
  • the air condenser comprises a leak neutralization system comprising at least one supply pipe extending along a lateral side of the heat exchanger and a plurality of nozzles extending from the pipe and configured to spray neutralization fluid upon detection of a refrigerant leak.
  • the spray nozzles associated with the containment boxes can be activated independently or simultaneously with the nozzles of the neutralization system arranged on the sides of the heat exchanger.
  • the leak neutralization system includes two connected supply lines extending along two lateral sides of the heat exchanger.
  • the refrigerant leak containment system comprises a first containment mounted on the first face, for example front, of the heat exchanger and a second containment box mounted on the second face, for example rear, of said heat exchanger, said second containment box forming with the second face of the heat exchanger a closed casing, each of the boxes being configured to surround at least one of the collectors and/or connection tubes.
  • the air condenser is an adiabatic air condenser comprising an air humidification device comprising at least one absorption medium or member mounted upstream of the heat exchanger, a system for spraying a fluid humidification device configured to humidify said media and a system for recovering the humidification fluid after having passed through the media, the air humidification device being able to be activated in parallel with the sprinkler system when a leak of refrigerant is detected.
  • the leak fluid recovery tank containing the refrigerant escaped from the heat exchanger and the neutralization fluid sprayed into the containment box by the associated spray nozzle is, for example, connected to the fluid recovery system of humidification.
  • the air condenser comprises at least two heat exchangers, for example mounted in parallel, for example in an envelope.
  • the invention relates to a method for neutralizing refrigerant leaks outside a heat exchanger of a dry or adiabatic air condenser delimited by a first face and a second face, opposite the first face. .
  • the air condenser comprises at least one refrigerant inlet manifold and one outlet manifold of said refrigerant each connected to the heat exchanger by at least one connection tube, each of the manifolds extending from one side of the heat exchanger, the containment box is configured to surround at least one of the manifolds, and in particular any connection bends between tubes.
  • the fluid present in the confinement box is sucked up by a pumping member arranged in said box.
  • the air condenser 10 comprises a casing 12 comprising four side walls here vertical, namely two side walls 12a, a transverse front wall 12b and a transverse rear wall 12c.
  • the casing 12 further comprises an upper wall 12d and a floor or lower wall forming a bottom 12e. All the walls 12a, 12b, 12c, 12d, 12e, are illustrated here in dotted lines in order to see no transparency inside, and delimit an internal enclosure.
  • the air condenser 10 further comprises two heat exchange batteries 14 or heat exchangers arranged in the internal enclosure of the casing 12 and each comprising a plurality of tubes 17a, 17b, 17b and fins (not shown) or microchannels. A refrigerant circulates in the tubes of each of the heat exchange batteries 14.
  • each heat exchange battery 14 comprises a front face 14a and a rear face 14b, opposite the front face, and two lateral sides, an external lateral side 14c, on the external side, and an internal lateral side 14d, opposite the side outer side 14c.
  • Each battery 14 comprises a refrigerant inlet manifold 15a and a refrigerant outlet manifold 15b.
  • the refrigerant inlet manifold 15a is connected to first tubes 17a of the battery on the side of the front face 14a of the battery and the refrigerant outlet manifold 15b is connected to second tubes 17b of the battery on the side of the front face 14a of the battery.
  • the outlet collector 15b could be connected to the tubes of the battery on the side of the rear face 14b of the battery.
  • the tubes 17a, 17b of each battery 14 are connected by welding respectively to the refrigerant inlet manifold 15a and to the refrigerant outlet manifold 15b.
  • the tubes 17a, 17b are produced by sections of pipe welded together and to the associated manifold by numerous welds.
  • the refrigerant inlet manifolds 15a of the two batteries 14 are here connected by a refrigerant supply conduit 19a and the refrigerant outlet manifolds 15b of the two batteries 14 are here connected by a fluid outlet conduit 19b refrigerant.
  • a refrigerant supply conduit 19a and the refrigerant outlet manifolds 15b of the two batteries 14 are here connected by a fluid outlet conduit 19b refrigerant.
  • the rear face 14b of said batteries 14 also comprises a plurality 17c of tubes comprising welded 90° elbows for the circuiting of the batteries 14.
  • the rear face 14b of said batteries 14 could include the fluid outlet manifold 15b.
  • the air condenser 10 comprises a plurality of fans 16 mounted on the upper wall 12d of the casing 12.
  • the air condenser 10 is here an adiabatic air condenser comprising an air humidification device comprising two media or humidification devices 18 configured to humidify the flow of air entering the batteries 14, each of the media 18 is associated with a battery 14. Each media 18 is arranged upstream of a battery 14 in the direction of circulation of the air flow set in motion by the fans 16.
  • the media is generally made of absorbent material.
  • the air humidification device further comprises a system (not shown) for spraying with a humidification fluid, for example water, arranged above each of the media 18 and configured to humidify said media 18 corresponding and a system 18a for recovering or collecting the humidification fluid after having passed through the media 18.
  • the air condenser 10 prefferably be “dry”, that is to say devoid of a humidification system and thus of media.
  • the side walls 12a of the air condenser are separate from the batteries 14.
  • the air humidification device is arranged outside the casing 12.
  • the air condenser 10 comprises a system 40 for containing refrigerant leaks escaping from the refrigerant inlet and outlet manifolds 15a, 15b.
  • the leak containment system 40 comprises a plurality of casings or boxes 42, 44, 46, 48 closed and each surrounding a face 14a, 14b of a battery 14, so as to form with the associated face, a closed box.
  • the leak containment system 40 comprises four containment casings 42, 44, 46, 48 and configured to respectively surround the front face 14a of the first battery 14, the front face 14a of the second battery 14, the rear face 14b of the first battery 14, and the rear face 14b of the second battery 14.
  • the leak containment system 40 comprises four containment casings 42, 44, 46, 48 and configured to respectively surround the front face 14a of the first battery 14, the front face 14a of the second battery 14, the rear face 14b of the first battery 14, and the rear face 14b of the second battery 14.
  • Each of the boxes 42, 44, 46, 48 has a sufficient size to enable the associated face of the battery to be surrounded.
  • each box is substantially equal to the width of the associated face of the batteries.
  • Each of the boxes 42, 44, 46, 48 comprises passage orifices (not referenced) for the passage of the supply and outlet ducts 19a, 19b of the refrigerant and the passages of the tubes 17a, 17b, 17c of the exchanger 14 in the case of a tube and fin heat exchanger.
  • One or more boxes includes a pump 50, visible on the picture 3 , configured to suck the fluid present in the associated box.
  • the pump 50 can be of the perylstatic type.
  • One or more boxes includes a sensor 21 configured to detect the presence of refrigerant in the associated box.
  • the sensor could also be remote from the casing and mounted downstream of the pump 50.
  • the aerocondenser 10 further comprises a spray system comprising a spray nozzle 52, 54, 56, 58 mounted in each of the containment boxes 42, 44, 46, 48.
  • a spray system comprising a spray nozzle 52, 54, 56, 58 mounted in each of the containment boxes 42, 44, 46, 48.
  • Each spray nozzle 52, 54, 56 , 58 is connected to a conduit (not shown) for supplying a neutralizing fluid, such as for example water or a neutral fluid under pressure.
  • the spray system When a refrigerant leak is detected in the containment boxes 42, 44, 46, 48, the spray system is activated, so as to spray or mist the neutralization fluid in each of the containment boxes 42, 44, 46, 48, in order to lower the refrigerant escaping from the batteries towards the bottom of the corresponding containment box.
  • each of the containment boxes comprises a detection sensor.
  • Each of the containment boxes 42, 44, 46, 48 is connected to its own recovery tank 51.
  • the recovery tank 51 makes it possible to recover the leakage fluid containing the refrigerant escaped from the batteries 14 and the neutralization fluid.
  • the recovery tank 51 can be connected to the collection tank 18a for the humidification fluid passing through the medium 18.
  • the air humidification system can be activated in parallel in order to spray the humidification fluid on the media 18.
  • each of the containment boxes thus flows through the orifices in the recovery ducts, and in the main pipe with a view to being recovered and treated outside the air condenser.
  • the main pipe can open out into the system 18a for recovering the humidification fluid from the medium 18 in the case of a so-called “adiabatic” air condenser.
  • the refrigerant leak containment system 40 and the spray system together form a refrigerant leak containment and spray system.
  • the air condenser 10 further comprises a system 20 for neutralizing potential leaks of refrigerant fluid circulating in the heat exchange batteries 14.
  • the system 20 for neutralizing potential leaks of refrigerant comprises a pipe 22 for supplying a pressurized fluid, for example under high pressure, for example water, located inside or outside the casing 12, and a plurality of supply lines 24 each connected to line 22 neutralization fluid supply and extending along each lateral side 14c, 14d of the heat exchange battery 14.
  • a pressurized fluid for example under high pressure, for example water
  • Line 22 for supplying neutralization fluid and supply lines 24 form a closed distribution circuit for neutralization fluid.
  • Each supply pipe 24 is attached to a lateral side of a battery 14.
  • the two lateral sides 14c, 14d of each of the batteries 14 are surrounded by a supply pipe 24.
  • Each supply line 24 can be mounted in a bracket (not shown) extending along each lateral side 14c, 14d of the batteries 14.
  • Each supply line 24 comprises a plurality of nozzles or dispersers 26 extending in a direction substantially perpendicular to the line 24 supply. Each nozzle 26 extending into a corresponding notch (not shown) provided in the battery mounting tabs 14.
  • two conduits 24 for supplying the neutralization fluid are arranged outside the casing 12.
  • each battery 14 It would also be possible to provide a number of supply lines 24 per lateral side of each battery 14 greater than one, for example greater than or equal to two.
  • Each spray nozzle can be connected to the conduit 22 for supplying neutralization fluid or to a separate conduit from said conduit 22.
  • the leak neutralization system 20 can be activated simultaneously with the activation of the spray system in the containment boxes, so spraying or misting the neutralization fluid, for example water or a fluid neutral under pressure on each side of the batteries 14 and at least one of the containment boxes 42, 44, 46, 48, in order to lower the refrigerant escaping from the batteries towards the bottom of the corresponding box.
  • the neutralization fluid for example water or a fluid neutral under pressure on each side of the batteries 14 and at least one of the containment boxes 42, 44, 46, 48, in order to lower the refrigerant escaping from the batteries towards the bottom of the corresponding box.
  • the spray nozzles 52, 54, 56, 58 associated with the containment boxes 42, 44, 46, 48 could be activated independently of the nozzles 26 of the neutralization system 20 arranged on the lateral sides of the batteries 14.
  • the neutralization system 20 allows a reduction of the leaks towards the bottom of the enclosure 12, and thus the control of any leaks of refrigerant.
  • the invention it is possible to independently confine any leaks of refrigerant at the level of all the welds present on the heat exchange coils of a dry or adiabatic air condenser. It is also possible to neutralize these leaks by spraying a neutralizing fluid by spraying as soon as a leak is detected and by recovering the leaking fluid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)
EP21184657.1A 2020-07-24 2021-07-09 Trockener oder adiabatischer luftkondensator, der ein begrenzungssystem für kühlmittellecks umfasst Active EP3943858B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2007821A FR3112845B1 (fr) 2020-07-24 2020-07-24 Aérocondenseur sec ou adiabatique comprenant un système de confinement de fuites de fluide frigorigène

Publications (3)

Publication Number Publication Date
EP3943858A1 true EP3943858A1 (de) 2022-01-26
EP3943858C0 EP3943858C0 (de) 2023-08-16
EP3943858B1 EP3943858B1 (de) 2023-08-16

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EP21184657.1A Active EP3943858B1 (de) 2020-07-24 2021-07-09 Trockener oder adiabatischer luftkondensator, der ein begrenzungssystem für kühlmittellecks umfasst

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EP (1) EP3943858B1 (de)
FR (1) FR3112845B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11971183B2 (en) 2019-09-05 2024-04-30 Trane International Inc. Systems and methods for refrigerant leak detection in a climate control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182131A (en) * 1978-11-27 1980-01-08 Consoli Ronald P High efficiency air conditioner
EP0451325A2 (de) * 1990-04-12 1991-10-16 AERO-TECH Gesellschaft für Klima- und Kältetechnik mbH Kaltwasser- und Soleaufbereitungsanlage
DE19635094A1 (de) * 1996-08-30 1998-03-05 Kuehl System Recycling Vorrichtung zur Neutralisation und Desodorierung von Ammoniak und Schwefeldioxyd
JP2001099447A (ja) * 1999-09-30 2001-04-13 Tokyo Electric Power Co Inc:The 漏洩アンモニア除去設備を備えた空冷エアコン
FR3073040A1 (fr) * 2017-11-02 2019-05-03 Bernier Developpement Dispositifs de securite pour installations aerauliques de froid et pompes a chaleur utilisant des fluides frigorigenes toxiques ou inflammables
US20190316803A1 (en) * 2018-04-13 2019-10-17 Mitek Holdings, Inc. Heat exchanger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU751294C (en) * 2001-07-13 2005-04-07 Baltimore Aircoil Company Inc. System and method of cooling
US9945622B2 (en) * 2012-04-25 2018-04-17 Evapco, Inc. Double-walled dry heat exchanger coil with single-walled return bends
JP6824410B2 (ja) * 2017-07-12 2021-02-03 三菱電機株式会社 熱源ユニット

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182131A (en) * 1978-11-27 1980-01-08 Consoli Ronald P High efficiency air conditioner
EP0451325A2 (de) * 1990-04-12 1991-10-16 AERO-TECH Gesellschaft für Klima- und Kältetechnik mbH Kaltwasser- und Soleaufbereitungsanlage
DE19635094A1 (de) * 1996-08-30 1998-03-05 Kuehl System Recycling Vorrichtung zur Neutralisation und Desodorierung von Ammoniak und Schwefeldioxyd
JP2001099447A (ja) * 1999-09-30 2001-04-13 Tokyo Electric Power Co Inc:The 漏洩アンモニア除去設備を備えた空冷エアコン
FR3073040A1 (fr) * 2017-11-02 2019-05-03 Bernier Developpement Dispositifs de securite pour installations aerauliques de froid et pompes a chaleur utilisant des fluides frigorigenes toxiques ou inflammables
US20190316803A1 (en) * 2018-04-13 2019-10-17 Mitek Holdings, Inc. Heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11971183B2 (en) 2019-09-05 2024-04-30 Trane International Inc. Systems and methods for refrigerant leak detection in a climate control system

Also Published As

Publication number Publication date
EP3943858C0 (de) 2023-08-16
FR3112845A1 (fr) 2022-01-28
EP3943858B1 (de) 2023-08-16
FR3112845B1 (fr) 2022-08-19

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