EP3430330A1 - Refrigerant circuit for a cooling and/or freezing appliance - Google Patents
Refrigerant circuit for a cooling and/or freezing applianceInfo
- Publication number
- EP3430330A1 EP3430330A1 EP17709908.2A EP17709908A EP3430330A1 EP 3430330 A1 EP3430330 A1 EP 3430330A1 EP 17709908 A EP17709908 A EP 17709908A EP 3430330 A1 EP3430330 A1 EP 3430330A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant circuit
- circuit according
- heat transfer
- transfer surface
- storage medium
- 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- Withdrawn
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
- F25B39/00—Evaporators; 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- 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
- F25B39/02—Evaporators
- F25B39/026—Evaporators specially adapted for sorption type systems
-
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/24—Storage receiver heat
Definitions
- the present invention refrigerant circuit for a refrigerator and / or freezer with at least one body and at least one arranged in the body cooled interior, the refrigerant circuit having at least one evaporator and at least one condenser and at least one compressor.
- the present invention is based on the object, a refrigerant circuit of the type mentioned in such a way that a particularly efficient design of the refrigerant circuit is achieved.
- This object is achieved by a refrigerant circuit according to the features of claim 1.
- the condenser is arranged partially or completely in a liquid bath, which at least partially absorbs the heat of condensation during operation of the refrigerant circuit, ie during operation of the compressor.
- the liquid in the liquid bath is water.
- the liquid bath is designed such that the waste heat of the condenser is distributed in the liquid bath by means of free or else by forced convection.
- the liquid bath has a first heat transfer surface from the liquefiers into the liquid of the liquid bath and a second heat transfer surface from the liquid to a further heat transfer medium. It is preferably provided that the second heat transfer surface is greater than the first heat transfer surface.
- the further heat transfer medium may be air.
- This air may preferably be obtained by means of forced convection, i. Promotion be promoted by a fan along the second heat transfer surface, whereby a particularly efficient heat dissipation is ensured.
- the heat is thus not transferred directly from the condenser into the air, but indirectly via the liquid bath or the liquid therein.
- the condenser and / or the evaporator of the refrigerant circuit is designed as a tube.
- the liquid bath preferably has one or more channels through which air, preferably ambient air, can flow.
- the condenser may be arranged in or on a latent heat storage medium, so that the resulting evaporative cold is at least partially absorbed in the latent heat storage during operation of the refrigerant circuit.
- the evaporator is directly connected to the latent heat storage medium or embedded in this.
- the latent heat storage medium at least a first heat transfer surface of the evaporator in the latent heat storage medium and a second heat transfer surface of the latent heat storage medium to another heat transfer medium, in particular to the air in the cooled interior.
- the second heat transfer surface is larger than the first heat transfer surface.
- At least one fan is preferably provided.
- control means which are designed to control the fan such that its speed depends on the temperature difference between the cooled interior and the latent heat storage medium.
- control means are provided, which are designed to control the compressor such that it is controlled as a function of the temperature of the latent heat storage medium, wherein the compressor is turned on when a certain temperature above the melting temperature of the latent heat storage medium.
- the control means may be designed such that the compressor remains switched on for a predetermined period of time.
- control means are provided which are designed to control the compressor so that it is turned on when a certain temperature is exceeded in the cooled interior and the fan runs at maximum speed.
- the present invention further relates to a refrigerator and / or freezer with at least one refrigerant circuit according to one of claims 1 to 13.
- the refrigerant circuit is mounted as a preassembled module on the refrigerator and / or freezer.
- FIG. 1 shows a schematic longitudinal sectional view through the lower part of a refrigerator and / or freezer according to the invention
- FIG. 2 shows a further schematic longitudinal sectional view according to the section line A - A in FIG. 1.
- FIG. 1 shows by reference numeral 10 the body of a refrigerator or freezer according to the invention.
- the body has an inner container 12 and an outer casing 14. In between there is a thermal insulation, which is used as conventional thermal insulation, e.g. may consist of PU foam or even a full vacuum insulation.
- a full vacuum insulation is preferably understood to mean that the body and / or the closure element of the device consists of more than 90% of the insulating surface of a contiguous vacuum insulation space.
- the envelope of the film bag is a diffusion-tight envelope, by means of which the gas input in the film bag is so greatly reduced that the gätragtraginged increase in the thermal conductivity of the resulting Vakuumdämm stressess is sufficiently low over its lifetime.
- the life span is, for example, a period of 15 years, preferably 20 years and more preferably 30 years.
- the increase in the thermal conductivity of the vacuum insulation body due to the introduction of gas is ⁇ 100% and particularly preferably ⁇ 50% over its service life.
- the area-specific gas transmission rate of the cladding is ⁇ 10 "5 mbar * l / s * m 2 and more preferably ⁇ 10 " 6 mbar * l / s * m 2 (measured according to ASTM D-3985).
- This gas passage rate applies to nitrogen and oxygen.
- low gas transmission rates preferably in the range of ⁇ 10 -2 mbar * l / s * m 2 and particularly preferably in the range of ⁇ 10 -3 mbar * l / s * m 2 (measured according to ASTM F - 1249-90).
- the above-mentioned small increases in the thermal conductivity are achieved by these low gas passage rates.
- the full vacuum insulation may be in the body and / or in the closure member, such as a door 100 or flap.
- the refrigerant circuit includes the compressor 20, the condenser 22, the capillary 23 and the evaporator 25, and the line 21 extending between the compressor 20 and the condenser 22 and the suction line extending between the evaporator 25 and the compressor 20.
- the assembly further includes a fan 26, which has the task to promote the air cooled by the evaporator 26 in the cooled interior.
- To the assembly may further include actuators, in particular valves and / or control or regulating elements that control or regulate the operation of the refrigerant circuit.
- the condenser 22 is designed as a pipeline which runs in a water bath 22 ' .
- the evaporator 25 is also designed as a pipeline which runs in a latent heat storage 25 ' .
- PCM phase change material
- the tubes of the condenser 22 as well as the tubes of the evaporator 25 mostly run within the water bath in the heat exchanger 22 ' or for the most part in the heat exchanger or latent heat store 25 ' .
- the heat exchanger 22 has a plurality of channels 30, which are flowed through by means of one or more fans of air. Thus, an effective removal of condenser waste heat from the bath is possible.
- the evaporator 25 is arranged in the latent heat storage 25 ' , which buffers the accumulating evaporator cold while the compressor is running.
- the surface area of the piping of the evaporator and the condenser is smaller than the surface area of the heat exchangers 22 ' and 25 ' to the air flowing around the heat exchangers.
- the reference numeral 24 in Fig. 2 denotes a suction pipe from the evaporator to the compressor. This runs through an edge-side recess R in the body or in the vacuum insulation body.
- the suction pipe and the return are by means of a conventional heat-insulating means, such as e.g. PU foam insulated or insulated.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016003244 | 2016-03-16 | ||
DE102017000237.1A DE102017000237A1 (en) | 2016-03-16 | 2017-01-12 | Refrigerant circuit for a refrigerator and / or freezer |
PCT/EP2017/000310 WO2017157509A1 (en) | 2016-03-16 | 2017-03-08 | Refrigerant circuit for a cooling and/or freezing appliance |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3430330A1 true EP3430330A1 (en) | 2019-01-23 |
Family
ID=59751758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17709908.2A Withdrawn EP3430330A1 (en) | 2016-03-16 | 2017-03-08 | Refrigerant circuit for a cooling and/or freezing appliance |
Country Status (6)
Country | Link |
---|---|
US (1) | US10871315B2 (en) |
EP (1) | EP3430330A1 (en) |
CN (1) | CN108885044B (en) |
DE (1) | DE102017000237A1 (en) |
RU (1) | RU2736475C2 (en) |
WO (1) | WO2017157509A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11859885B2 (en) | 2021-07-23 | 2024-01-02 | Refrigerated Solutions Group Llc | Refrigerant circuit with reduced environmental impact |
US11815280B2 (en) * | 2022-01-31 | 2023-11-14 | Mitsubishi Electric Us, Inc. | System and method for controlling the operation of a fan in an air conditioning system |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE257290C (en) | ||||
NL31109C (en) | 1930-10-23 | |||
US2310657A (en) * | 1938-11-02 | 1943-02-09 | John J Shively | Multiple temperature refrigerating apparatus |
FR880816A (en) | 1941-04-19 | 1943-04-06 | Improvements to refrigeration condensers | |
SU1211546A1 (en) * | 1984-04-05 | 1986-02-15 | Шахтинский Технологический Институт Бытового Обслуживания | Domestic refrigerator |
DD293638A5 (en) | 1990-04-09 | 1991-09-05 | Veb Kombinat Ilka Luft- Und Kaeltetechnik,De | KUEHLMOEBELGEHAEUSE |
EP0794396A1 (en) | 1996-03-08 | 1997-09-10 | Société d'Electromenager du Nord Selnor | Cold generating apparatus having a heat exchanger with heat storage |
IT1290117B1 (en) | 1997-03-18 | 1998-10-19 | Selnor | HEAT EXCHANGER AS A CONDENSER AND / OR EVAPORATOR FOR A COLD GENERATOR |
DE19951766A1 (en) * | 1999-10-27 | 2001-05-03 | Bsh Bosch Siemens Hausgeraete | Refrigeration device, such as a refrigerator, a fridge-freezer or the like |
ITMI20010212A1 (en) | 2001-02-02 | 2002-08-02 | Whirlpool Co | REFRIGERANT CIRCUIT CONDENSER PARTICULARLY FOR FREEZER REFRIGERATORS AND SIMILAR HOUSEHOLD APPLIANCES |
BR0100723A (en) | 2001-02-16 | 2002-11-12 | Multibras Eletrodomesticos Sa | Condenser for refrigeration appliance |
DE10129999A1 (en) * | 2001-06-25 | 2003-01-16 | Andre Spiering | Method for reducing the operating temperature in a refrigeration system has the evaporator surrounded by water evaporated by a fan |
CN2510799Y (en) * | 2001-11-07 | 2002-09-11 | 杨洁 | Energy-saving refrigerator |
KR100459303B1 (en) * | 2002-05-10 | 2004-12-04 | 철 수 이 | Condensing system of refrigerator |
CN2729595Y (en) * | 2004-04-09 | 2005-09-28 | 广东科龙电器股份有限公司 | Controlling system with cooling storage device |
KR100764792B1 (en) * | 2005-12-29 | 2007-10-11 | 엘지전자 주식회사 | Direct cooling refrigerator with improved heat radiation efficiency |
DE102006042020A1 (en) | 2006-09-07 | 2008-03-27 | BSH Bosch und Siemens Hausgeräte GmbH | The refrigerator |
KR100826180B1 (en) * | 2006-12-26 | 2008-04-30 | 엘지전자 주식회사 | Refrigerator and control method for the same |
DE102007062022A1 (en) | 2007-12-21 | 2009-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | The refrigerator |
DE102007062006A1 (en) | 2007-12-21 | 2009-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Condenser for e.g. refrigerator, has pipe immersed into working fluid e.g. water, where fluid level of fluid comprises predetermined space to cover wall of container, so that portion of working fluid evaporates and condenses at cover wall |
EP2686623A1 (en) | 2011-03-14 | 2014-01-22 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration device having a heat store |
CN102967075B (en) * | 2011-08-31 | 2016-09-14 | 博西华电器(江苏)有限公司 | There is refrigerating appliance and the method for work thereof of multi cycle refrigeration system |
DE102013005476A1 (en) | 2012-04-01 | 2013-10-02 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
WO2013165535A1 (en) * | 2012-05-03 | 2013-11-07 | Carrier Corporation | Air conditioning system having supercooled phase change material |
DE102012017345A1 (en) | 2012-08-29 | 2014-05-15 | Johannes Georg Mehlig | Refrigerator or freezer for use in household, has evaporator and condenser are located in front of rear wall in water tanks, and antifreeze is added to water tanks such that water remains liquid even at low evaporation temperatures |
WO2014065938A1 (en) * | 2012-10-25 | 2014-05-01 | Carrier Corporation | Refrigeration system with phase change material |
WO2015100119A1 (en) | 2013-12-23 | 2015-07-02 | The Coca-Cola Company | Intermittent power grid ready cooler |
KR102331692B1 (en) | 2014-06-30 | 2021-11-30 | 삼성전자 주식회사 | Method and apparatus for selecting profile of terminal in a mobile network |
US10782052B2 (en) * | 2014-08-26 | 2020-09-22 | Syracuse University | Micro environmental control system |
US10151518B2 (en) * | 2015-01-16 | 2018-12-11 | Hill Phoenix, Inc. | Refrigeration system with brushless DC motor compressor drive |
-
2017
- 2017-01-12 DE DE102017000237.1A patent/DE102017000237A1/en not_active Withdrawn
- 2017-03-08 CN CN201780017262.0A patent/CN108885044B/en not_active Expired - Fee Related
- 2017-03-08 RU RU2018136209A patent/RU2736475C2/en active
- 2017-03-08 EP EP17709908.2A patent/EP3430330A1/en not_active Withdrawn
- 2017-03-08 US US16/084,241 patent/US10871315B2/en active Active
- 2017-03-08 WO PCT/EP2017/000310 patent/WO2017157509A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN108885044B (en) | 2022-01-28 |
DE102017000237A1 (en) | 2017-09-21 |
US10871315B2 (en) | 2020-12-22 |
RU2018136209A3 (en) | 2020-06-01 |
US20190063803A1 (en) | 2019-02-28 |
RU2736475C2 (en) | 2020-11-17 |
WO2017157509A1 (en) | 2017-09-21 |
CN108885044A (en) | 2018-11-23 |
RU2018136209A (en) | 2020-04-16 |
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