EP3213012A1 - Appareil de froid comportant un élément échangeur de chaleur - Google Patents

Appareil de froid comportant un élément échangeur de chaleur

Info

Publication number
EP3213012A1
EP3213012A1 EP15784354.1A EP15784354A EP3213012A1 EP 3213012 A1 EP3213012 A1 EP 3213012A1 EP 15784354 A EP15784354 A EP 15784354A EP 3213012 A1 EP3213012 A1 EP 3213012A1
Authority
EP
European Patent Office
Prior art keywords
heat
circulation system
refrigerant
refrigeration
condenser
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.)
Withdrawn
Application number
EP15784354.1A
Other languages
German (de)
English (en)
Inventor
Oscar De la Rosa
Niels Liengaard
Sascha Steininger
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3213012A1 publication Critical patent/EP3213012A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1412—Removal by evaporation using condenser heat or heat of desuperheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the present invention relates to a refrigeration device with a heat exchange element.
  • the interior of the refrigerator is cooled by a refrigeration cycle.
  • a reduction in the temperature inside the refrigeration device by the expenditure of mechanical work by components of the
  • Refrigeration cycle achieved. This creates heat at certain points of the refrigeration cycle, which must be effectively dissipated to ensure an advantageous efficiency of the refrigeration cycle and to ensure an advantageous cooling of the refrigerator.
  • the object of the invention by a refrigerator with a refrigeration cycle with a condenser, with a heat circulation system for heating an element of the refrigerator, wherein the heat circulation system a
  • Condenser and theticianleit Rail includes, wherein the condenser and the Cyprusleit Scheme are thermally coupled in the heat exchange element to emit heat from the refrigeration cycle to the leit Geb the heat circulation system.
  • the technical advantage is achieved that takes place by the thermal coupling of the condenser of the refrigeration cycle with theticianleit Scheme the heat circulation system in the heat exchange element, an efficient heat transfer from the refrigeration circuit to the shallleit Scheme the heat circulation system, and the heat, for example, from a heat transport substance in the heat circulation system can.
  • the transferred heat can through the Heat circulation system, such as a thermosyphon or a heating tube, for example by a heat transport substance, transported to an element of the refrigerator and delivered to the element to heat the element.
  • An element of the refrigeration device can comprise a region or a component of the refrigeration device that is not actively cooled by the refrigeration cycle of the refrigeration device, and that is to be heated.
  • the element may include, for example, the refrigerator door, the frame of the refrigerator, a surface area of the frame of the refrigerator, a power supply, or an evaporation tray of the refrigerator.
  • an amount of heat is released from the condenser.
  • the amount of heat released by the condenser is transferred in the heat exchange element through the thermal coupling to the heat conduction region of the heat circulation system.
  • the thermal coupling can be realized by a thermally conductive element of the heat exchange element, such as a thermally conductive metal element, which is arranged between the condenser and theticianleit Scheme.
  • the amount of heat transferred to the leit Scheme can be delivered, for example, to an existing heat transport substance of the heat circulation system, which can absorb the heat in theticianleit Scheme.
  • Heat circulation system is designed to transport the heat absorbed to an element of the refrigerator, where the heat is needed, and to deliver the absorbed heat to this element of the refrigerator.
  • Heat exchange element can be achieved efficient removal of heat from the condenser.
  • a refrigeration appliance is understood in particular to mean a domestic refrigeration appliance, that is to say a refrigeration appliance used for household purposes in households or in the gastronomy sector, and in particular for storing food and / or drinks at specific temperatures, such as, for example, a refrigerator
  • the heat exchange element comprises a condenser made of multi-port extruded tube.
  • Condenser made of multi-port extruded tube (MPE condenser) a particularly effective heat transfer from the condenser is achieved on the perennialleit Brady the heat cycle.
  • MPE condenser multi-port extruded tube
  • An MPE condenser has a large internal surface area which allows for efficient heat transfer from the refrigerant to the surface of the MPE condenser.
  • a thermally conductive contact between the surface of the MPE condenser and the heat-conducting portion of the heat circulation system such as e.g. by a thermally conductive metal compound, can be an effective
  • the condenser comprises a cooling channel and the heat-conducting region comprises a heat channel, wherein the cooling channel is formed, a refrigerant of the refrigeration cycle in the
  • Heat transfer element to convey and wherein the heat channel is adapted to convey a heat transport substance of the heat circulation system in the heat exchange element.
  • the technical advantage is achieved that through the cooling channel of the condenser and through the heat channel of the skilletleit Schemes a constant promotion of Refrigerant, or heat transport substance is achieved in the refrigerator.
  • a spatial proximity between the refrigeration cycle and the heat circulation system is achieved by the arrangement of the cooling channel of the condenser and the heat channel of the heat-conducting in the heat exchange element.
  • Heat transfer from the refrigerant to the heat transport substance can be achieved.
  • the cooling channel and the heat channel are arranged parallel to one another, wherein the refrigerant which can be conveyed in the cooling channel and the heat transport substance which can be conveyed in the heat channel are arranged in
  • Cooling channel and heat channel effective heat transfer from the refrigeration cycle is made possible on the heat circulation system.
  • Heat exchange process can be achieved.
  • the cooling channel is separated from the heating channel by a thermally conductive partition wall.
  • the technical advantage is achieved that a strict separation between the two channels is ensured by the partition wall between the cooling channel and the heat channel, so that there is no physical exchange of refrigerant and heat transfer substance. Since the partition is thermally conductive, and
  • Heat exchange element an essay, wherein the attachment is formed, the
  • the refrigeration cycle comprises a refrigerant
  • Heat cycle system comprises a heat transport substance.
  • Heat exchange element to connect an effective heat exchange between the two circuits is made possible.
  • Heat exchange element are introduced and at a second position of the
  • Heat exchange element are passed out of the heat exchange element.
  • the attachment may be designed such that the refrigerant of the refrigeration cycle through the attachment at a first position of the heat exchange element in the
  • Heat exchange element is introduced and the refrigerant is passed to another attachment at a further position of the heat exchange element from the heat exchange element. In this case, through the attachment at a second position of the
  • Heat exchange element heat transport substance are introduced from the heat circulation system in the heat exchange element.
  • the attachment comprises a refrigerant space for receiving the refrigerant through a first opening and comprises a substance space for receiving the heat transport substance through a second opening, wherein the refrigerant space and the substance space are separated by a thermally conductive center web.
  • the technical advantage is achieved that the article both for the supply of the refrigerant from the refrigeration cycle, as well as for the supply of the
  • Heat transport substance from the heat circulation system is suitable, causing it to an effective heat transfer between the circuits comes.
  • refrigerant can be conducted into the refrigerant space of the attachment to be subsequently supplied to the heat exchange element.
  • second opening of the attachment heat transfer substance into the substance space of the
  • the central web is thermally conductive, and consists for example of aluminum, can still effective heat conduction from the refrigerant in the refrigerant space to the heat transport substance in the
  • Heat transport substance an alkane, a fluorohydrocarbon or water, preferably isobutane, tetrafluoroethane or water, and more preferably water.
  • Heat cycle system a heat transport substance and includes a
  • Condenser of the heat exchange element received amount of heat to the heat transport substance in the heat circulation system to give the
  • the heat dissipation region is adapted to deliver the amount of heat absorbed by the heat transfer substance to the element of the refrigeration device.
  • Heat circulation system such as a thermosiphon or heating tube, an effective heat absorption in the shallleit Scheme, an effective transport of recorded Heat to the heat emitting area, and an effective delivery of the absorbed heat is ensured to the element of the refrigerator.
  • Refrigeration cycle an active system with an evaporator, a compressor or a throttle body.
  • an effective refrigeration cycle can be realized by using an active system with said components, wherein at least one of said components is actively operated by electrical energy and thereby heat is generated, which is delivered to the heat circulation system.
  • Heat cycle system a passive system with a thermosyphon or a
  • the refrigeration device comprises an evaporation tray, wherein the heat circulation system is designed to deliver the amount of heat absorbed to the evaporation tray of the refrigeration appliance.
  • Heat circulation system such as a thermosyphon or heating tube
  • Evaporation tray of the refrigerator an effective heating of the evaporation tray is achieved.
  • the evaporation tray takes condensation water of the refrigerator, which arises during operation of the refrigerator by condensation of water from the ambient air through the evaporator of the refrigerator. By warming the
  • the Evaporation tray accelerates the evaporation of condensation in the evaporation tray.
  • the condensing temperature of the refrigerant can be lowered in the refrigeration cycle, resulting in an increase in efficiency of the refrigerator and a reduction in the energy consumption of the refrigerator.
  • the refrigeration device includes the
  • Heat circulation system a heat dissipation region, wherein the heat dissipation region comprises a thermally conductive element, which in thermal contact with the
  • Evaporation tray is to ensure effective heating of the evaporation tray.
  • Heat release region is provided with a thermally conductive element, such as a surface-enlarging element such as fins, a particularly effective release of heat from the heat emitting area to the evaporation tray.
  • a thermally conductive element such as a surface-enlarging element such as fins
  • Heat cycle system is designed to deliver the absorbed amount of heat to the frame of the refrigerator.
  • the technical advantage is achieved that an effective heating of the outer region of the refrigerator is made possible by the release of heat to the frame and at the same time comes an effective cooling of the refrigerant in the refrigeration cycle.
  • the technical advantage is achieved that by the release of heat to the surface region of the frame condensation of water from the ambient air in the refrigerator can be prevented.
  • the surface area of the frame is located near the refrigerator door. If the refrigerator door is opened, moist air may come into contact with the surface area of the frame, which may cause condensation of water at the surface area, and the not wanted. By heating the surface area of the frame, the condensation of water can be reduced or prevented.
  • Fig. 1 is a schematic representation of a refrigerator
  • FIG. 2 is a schematic representation of a heat circulation system in a refrigeration appliance
  • FIG. Fig. 3 is a schematic representation of a condenser as a comparative example
  • Fig. 5 is a schematic representation of an essay
  • Fig. 6 is a schematic representation of a heat exchange element
  • Fig. 7 is a schematic representation of a refrigerator with an evaporation tray.
  • Fig. 1 shows a refrigerator representative of a general refrigeration device 100 with a refrigerator door 101, through which the interior of the general refrigeration device 100 is closed, and with a frame 103rd
  • the refrigeration device 100 includes a refrigeration cycle with an evaporator, compressor, condenser and throttle body.
  • the evaporator is a heat exchanger in which, after expansion, the liquid refrigerant is recovered by absorbing heat from the medium to be cooled, e.g. Air, is evaporated.
  • the compressor is a mechanically operated component that draws refrigerant vapor from the evaporator and expels it at a higher pressure to the condenser.
  • the condenser is a heat exchanger, in which after compression, the evaporated refrigerant by heat to an external
  • Cooling medium for example air
  • the throttle body is a device for the continuous reduction of the pressure by cross-sectional constriction.
  • the refrigerant is a fluid used for heat transfer in the cryogenic system is that absorbs heat at low temperatures and low pressure of the fluid and at higher temperature and higher pressure of the fluid gives off heat, which usually include changes in the state of the fluid are included.
  • FIG. 2 shows a schematic representation of a heat circulation system 105 with a heat transport substance in a refrigeration device 100, wherein the heat circulation system 105 comprises a heat-conducting region 107 and a heat-dissipating region 109.
  • Prerequisite for the operation of the heat circulation system 105 is a
  • Heat cycle system 105 to allow. As the temperature outside of the
  • Heat cycle system 105 transported in the flow direction 1 13. Because the
  • Temperature outside the heat release region 109 is lower than the temperature of the heated heat transport substance, the amount of heat from the
  • the heat-circulating system 105 comprises an insulating region 15 to prevent a heat flow outside the heat-circulating system 105 between the two regions having different temperatures in the refrigerating device 100.
  • thermal cycle system 105 includes a thermosyphon, then the heat generated during operation of the refrigeration cycle in the refrigeration device 100 is applied to the
  • Heat transport substance to heat whereby it evaporates and the gas rises in the substance line 1 1 1 upwards.
  • the heated heat transport substance releases the absorbed heat to the environment of the
  • the condenser 1 17 includes a
  • the condenser 17 includes an extruded MPE tube 123 through which refrigerant is passed and which has a scale-like structure.
  • the transition of the extruded MPE tube 123 to the input tube 1 19 and to the output tube 121 is realized by a respective attachment 127.
  • the attachment 127 has on a front side an opening through which the input pipe 1 19, and the
  • Output pipe 121 is connected to the top 127.
  • a gap is provided into which the MPE tube 123 can be inserted in order to realize a conclusive connection between the MPE tube 123 and the inlet tube 1 19 or the outlet tube 121.
  • heated refrigerant can be passed through the inlet pipe 1 19 through the extruded MPE tube 123 in the condenser 1 17 and through the exit pipe 121 again from the condenser 1 17.
  • the fins 125 an amount of heat from the refrigerant to the outside of the condenser 1 17 are discharged to achieve liquefaction of the refrigerant.
  • FIG. 4 shows a schematic representation of an MPE tube 123 according to FIG.
  • the MPE tube 123 may comprise an extruded tube of one or several metals and may be aluminum.
  • the MPE pipe 123 comprises a plurality of cooling channels 129 through which the refrigerant of the refrigeration cycle can flow and which are separated from one another by webs 131.
  • the webs 131 stiffen the MPE tube 123 and make bending of the MPE tube 123 in
  • the MPE tube 123 also includes a plurality of heat channels 133 through which a heat transfer substance of a heat circulation system 105 can flow and which are also separated by webs 131 from each other. Between the heat channels 133 and the cooling channels 129 is a partition wall 135. The partition 135 prevents mixing of the refrigerant flowing through the cooling channels 129 with the refrigerant flowing through the heat channels 133 heat transport substance.
  • the partition wall 135 is configured such that heat flow from the refrigerant in the refrigerant passages 129 through the partition wall 135 to the heat transport substance in the heat passages 133 is enabled.
  • Fig. 5 shows a schematic representation of an attachment 127 according to the present invention.
  • the attachment 127 may comprise an extruded tube of one or several metals and may be made of aluminum.
  • the attachment 127 has on a front side a first opening 137 through which an inlet pipe 1 19, and a
  • Output pipe 121 of the refrigeration cycle is connected to the top 127. Through the opening 137, refrigerant of the refrigeration cycle can flow into a refrigerant space 139 of the top 127.
  • the attachment 127 on the other front side has a second opening 141 through which an inlet tube 1 19, or an outlet tube 121 of the heat circulation system 105 is connected to the attachment 127 , Through the second opening 141 can
  • a central web 145 is attached.
  • the central web 145 allows a physical separation between
  • Substance space 143 and refrigerant space 139 are designed such that a heat flow from the refrigerant in the refrigerant space 139 through the central web 145 to the heat transport substance in the substance space 143 is made possible.
  • the attachment 127 can be connected conclusively to the MPE tube 123, the attachment 127 has on one longitudinal side a slot 147 which is designed to receive the MPE tube 123.
  • the slot 147 includes a refrigerant slot 149 through which the refrigerant space 139 of the cap 127 is connected to the refrigerant passages 129 of the MPE pipe 123 to flow refrigerant through the first port 137 through the refrigerant space 139 to the refrigerant passages 129 of the MPE pipe. To allow tube 123.
  • the slot 147 also includes a substance slot 151, through which the substance space 143 of the attachment 127 is connected to the heat channels 133 of the MPE tube 123 to a flow of heat transport substance through the second opening 141 through the substance space 143 to the heat channels 133 of the MPE - To allow tube 123.
  • Fig. 6 shows a schematic representation of a heat exchange element according to the present invention with an MPE tube according to FIG. 4 and with an attachment according to FIG. 5.
  • the heat exchange element 153 comprises a condenser 1 17 and a
  • the condenser 1 17 comprises an inlet pipe 1 19 and an outlet pipe 121, through which the refrigerant can be introduced into the condenser 1 17, or discharged.
  • the condenser 17 and the heat-conducting region 107 comprise an extruded MPE tube 123 through which the refrigerant or heat-transport substance is passed and which has a scale-like structure. Between the maanderförmigen sections of the extruded MPE tube 123 fins 125 are attached. The transition of the extruded MPE tube 123 to the input tube 1 19 and to the output tube 121 is realized by a respective attachment 127.
  • the attachment 127 has on a front side a first opening 137, through which the input tube 1 19, and the output tube 121 is connected to the attachment 127.
  • a slot 147 is provided, in which the MPE tube 123 can be inserted in order to realize a conclusive connection between the MPE tube 123 and the inlet tube 1 19, or the outlet tube 121.
  • the attachment 127 further comprises a second opening 141 into which a further input tube 157 and into which a further output tube 159 can be inserted.
  • the further input pipe 157 and the further output pipe 159 are connected to the heat circulation system 105, so that the heat transport substance can be passed through the heat-conducting region 107.
  • the condenser 1 17 of the separated by the dividing line 155 heat exchange element 153 is part of an active refrigeration cycle with a
  • the partition wall 135 and the central web 145 are designed such that they are thermally conductive, and thus a heat flow from the refrigerant in the cooling channels 129 to the heat transport substance in the heat channels 133 is made possible.
  • the heat exchange element 153 functions as a heat exchanger to remove heat from the
  • the dissipated heat may be delivered to a surface area of the frame 103 of the refrigerator 100 to heat the surface area of the frame 103 and prevent condensation of water on a cold surface of the frame 103.
  • Fig. 7 shows a schematic representation of a refrigeration device 100 with a
  • the refrigerating apparatus 100 includes a heat circulating system 105 having a heat conducting portion 107 for absorbing heat and a heat releasing portion 109 for delivering heat to a thermally conductive member 161 such as a high surface area element configured to dissipate the heat to the Evaporate 163.
  • a thermally conductive member 161 such as a high surface area element configured to dissipate the heat to the Evaporate 163.
  • the heat circulation system 105 may include a heating tube in addition to a thermosiphon to deliver heat to the evaporation tray 163.
  • a heating tube is a closed tube which is filled with a heat transport substance and which has a wick on the outer wall of the heating tube. In the wick, the heat transport substance is in a liquid state of aggregation. If the
  • the heat pipe achieves efficient heat transfer from a warm to a cold environment, which is much more efficient than traditional copper thermal conduction.
  • the condenser 1 17 Since the heat circulation system 105, such as e.g. the heat pipe, heat dissipates from the condenser 1 17 and thus is colder than the environment, the condenser 1 17 is better cooled than by air cooling. The lower the condensing temperature of the
  • Refrigerant is in the refrigeration cycle, the greater the efficiency of the compressor in the refrigeration cycle and the lower the energy consumption of the entire
  • Refrigeration unit 100 Due to the better cooling of the condenser 1 17 through the
  • Heat cycle system 105 may under certain circumstances a fan in the refrigerator 100 run slower, whereby the volume during operation of the refrigerator 100 can be reduced.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)

Abstract

L'invention concerne un appareil de froid (100) comportant un circuit frigorifique contenant un condenseur (117), un système de circuit de chaleur (105) destiné à chauffer un élément de l'appareil de froid (100), le système de circuit de chaleur (105) comprenant une zone de conduction de chaleur (107), et un élément échangeur de chaleur (153) contenant le condenseur (117) et la zone de conduction de chaleur (107). Le condenseur (117) et la zone de conduction de chaleur (107) dans l'élément échangeur de chaleur (153) sont couplés thermiquement afin de transférer de la chaleur du circuit frigorifique vers la zone de conduction de chaleur (107) du système de circuit de chaleur (105).
EP15784354.1A 2014-10-29 2015-10-21 Appareil de froid comportant un élément échangeur de chaleur Withdrawn EP3213012A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222108.0A DE102014222108A1 (de) 2014-10-29 2014-10-29 Kältegerät mit einem Wärmetauschelement
PCT/EP2015/074340 WO2016066489A1 (fr) 2014-10-29 2015-10-21 Appareil de froid comportant un élément échangeur de chaleur

Publications (1)

Publication Number Publication Date
EP3213012A1 true EP3213012A1 (fr) 2017-09-06

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EP15784354.1A Withdrawn EP3213012A1 (fr) 2014-10-29 2015-10-21 Appareil de froid comportant un élément échangeur de chaleur

Country Status (5)

Country Link
US (1) US10302339B2 (fr)
EP (1) EP3213012A1 (fr)
CN (1) CN107076483B (fr)
DE (1) DE102014222108A1 (fr)
WO (1) WO2016066489A1 (fr)

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DE102016210775A1 (de) * 2016-06-16 2017-12-21 BSH Hausgeräte GmbH Kältegerät mit einem Kältemittelverflüssiger mit einer Lamellenanordnung
US11125483B2 (en) 2016-06-21 2021-09-21 Hill Phoenix, Inc. Refrigeration system with condenser temperature differential setpoint control
US10260819B2 (en) * 2016-07-26 2019-04-16 Tokitae Llc Thermosiphons for use with temperature-regulated storage devices
CN106766527A (zh) * 2016-12-26 2017-05-31 青岛海尔股份有限公司 一种具有双制冷系统的冰箱
CN111578618A (zh) * 2020-05-27 2020-08-25 新石器慧通（北京）科技有限公司 一种冷热一体柜、温控方法及无人车

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EP2587197A1 (fr) * 2011-10-28 2013-05-01 Urenco Limited Dégivrage
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Also Published As

Publication number Publication date
US20170307265A1 (en) 2017-10-26
DE102014222108A1 (de) 2016-05-04
CN107076483A (zh) 2017-08-18
WO2016066489A1 (fr) 2016-05-06
CN107076483B (zh) 2021-03-30
US10302339B2 (en) 2019-05-28

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