EP3619483A1 - Kühlmöbel mit speicher, kühlsystem und verfahren zum steuern eines kühlmöbels mit einem speicher - Google Patents
Kühlmöbel mit speicher, kühlsystem und verfahren zum steuern eines kühlmöbels mit einem speicherInfo
- Publication number
- EP3619483A1 EP3619483A1 EP18716516.2A EP18716516A EP3619483A1 EP 3619483 A1 EP3619483 A1 EP 3619483A1 EP 18716516 A EP18716516 A EP 18716516A EP 3619483 A1 EP3619483 A1 EP 3619483A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- cooling
- heat exchanger
- line arrangement
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005057 refrigeration Methods 0.000 title abstract description 42
- 239000002826 coolant Substances 0.000 claims abstract description 218
- 238000001816 cooling Methods 0.000 claims description 128
- 238000009413 insulation Methods 0.000 claims description 16
- 238000010257 thawing Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000012071 phase Substances 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101100210287 Drosophila melanogaster wech gene Proteins 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000036629 mind Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
-
- 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
- F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25B2400/22—Refrigeration systems for supermarkets
-
- 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
- F25B2600/00—Control issues
- F25B2600/13—Pump speed control
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
Definitions
- the refrigerator has a cold room for receiving and storing refrigerated goods.
- Such refrigeration units may be game designed as refrigerated shelves at ⁇ and in retail outlets to offer to be cooled products.
- the products are cooled in the refrigerated shelves and can be removed from it via an at least from ⁇ cut open side.
- a plurality of refrigerated shelves is part of a cooling system, which additionally has a cold generator.
- ice storage for a cooling system or a cooling system, wherein a cooling liquid for the cooling furniture can be cooled via the ice storage, if, for example, certain te operating conditions are reached.
- the operating states include a completely loaded ice storage and the operating costs for a refrigerated shelf.
- an ice storage in the ground can be provided, which is frozen at night with low operating costs (for example, for electricity) by removing heat from the water.
- the circulating in the cooling system coolant can be performed instead of cooling by a chiller through the ice storage, so that the cooling systems connected to the cooling system are cooled via the ice storage.
- an ice storage can not always be provided because, for example, the local circumstances do not allow this.
- Ice storage for a refrigeration system such as that of a supermarket, are designed so that the entire refrigeration system can be operated on a fully loaded ice storage for a certain period of time. Accordingly, the ice storage is dimensioned and takes up a lot of space in the ground. Smaller ice storage, which are arranged above ground, for example, but have disadvantages. First, it must be ensured that there is sufficient space for such an ice storage, which is also given a fundamental lack of space for an ice storage in the ground. Second, an above-ground ice storage lacks natural insulation, such as the soil.
- a suitable insulation for an above-ground earth storage requires additional space and incurs additional costs.
- a central ice storage of a cooling system makes it possible to ⁇ the, holistically to cool the circulating in a supply system coolant. Accordingly, therefore, it is difficult for a refrigerating system having a plurality of refrigerating cabinets to satisfy different loading requirements, with no excessive discharging of the ice storage.
- DE 10 2011 104 140 AI describesdevorrich ⁇ tions for food
- the cooling devices are provided with devices that are cooled by ice water in an ice storage.
- JP 2015-218 917 A discloses a cooling roll container, wherein run in the walls of the roll container lines that serve for cooling. For this purpose, the lines are applied to heat storage plates. On the heat storage plates metal walls are in turn arranged, which give the interior of the roll container to ⁇ .
- DE 10 2010 041 951 AI discloses a refrigeration device with a cold storage, wherein a heat exchanger is connected via a separate line arrangement with the cold storage.
- EP 2 009 373 A2 discloses a cooling system with additional cooling devices.
- the object is a refrigerator with egg ⁇ nem memory, a cooling system and a method for controlling specify a cooling cabinet with a memory, which can be dispensed without ex ⁇ ternal ice storage, a modular connection to existing cooling systems and a self-sufficient operation of the refrigerator furniture are possible.
- the components of the refrigerated cabinet should be protected against damage, such as icing, and have the cooling furniture a simple structure.
- Another object is to provide a refrigerated cabinet that has reduced energy consumption for prior art refrigerated cabinets.
- the object is achieved by a refrigerated cabinet having the technical features specified in claim 1, by a cooling system with the technical features specified in claim 7 and by a method for controlling a refrigerated cabinet with the technical features specified in claim 8.
- a refrigerated cabinet which achieves the above object, at least comprising a cooling space for receiving and storing refrigerated goods, a memory with a storage container, in which a storage medium is received, a heat exchanger, a controller and aderichterel effetsanord- tion via connections to a coolant supply network can be connected,
- the coolant line arrangement is guided through the storage container,
- the heat exchanger is thermally coupled to the storage medium accommodated in the storage medium, is arranged in the flow of the coolant line arrangement, a coolant control device,
- the coolant control device is a speed-regulated pump
- the storage container consists at least in sections of a thermally conductive material and has an insulation
- the insulation surrounds the accumulator completely up to a section, via which the accumulator is connected to the heat exchanger, and
- the heat exchanger has cooling fins.
- the cooling of the heat exchanger for cooling the cooling space is not achieved in the cooling furniture directly via the coolant, which is provided in the coolant line arrangement of a coolant supply network.
- the coolant can be decoupled from the coolant supply network.
- the required "cold" for the heat exchanger is taken only from the memory.Thus, depending on the state of charge of the memory and the dimensioning of the memory with respect to the refrigerated cabinet and the refrigerator, an operation of the refrigerator can be provided over a long period of time, without that coolant supply network, a cold water supply must be provided.
- the loading of the memory is carried out via the coolant control device.
- thehariffenre ⁇ gel means regulates the supply of coolant from the coolant supply power to the memory.
- the storage medium may be used, for example, water.
- additives may be added to the water or phase Wech
- these Lei ⁇ tung portions of the coolant line assembly are spirally or meander arranged in the storage container.
- the sections of the coolant line arrangement are arranged in the storage container such that a defined cooling of the storage media takes place from the inside to the outside.
- the control of the refrigerating appliance regulates the coolant supply via the coolant regulating device, which is operated, for example, such that in a normal operating cycle the reservoir is substantially frozen or discharged only between 70% and 90%, for example a phase transformation takes place and the storage medium freezes.
- the normal operating cycle can play comprise the period at ⁇ , in which the cooling furniture, which is provided as a cooling rack in a supermarket part of adesys ⁇ tems, has an increased cooling demand.
- the increased cooling demand results from the removal of refrigerated goods and the storage of refrigerated goods and the increased heat exchange between the refrigeration cabinets and the room in which the refrigeration cabinet is arranged, as is usually open in the refrigeration shelves ei ⁇ ne page in the normal operating cycle.
- the cooling furniture such as shelves, closed, so that prevails a lesser heat exchange between the room in which the refrigeration equipment is disposed, and the interior of the refrigerator cabinet or the cold room.
- operating conditions can also be present during the day, ie at business hours of a supermarket, the memory is fully charged, so at night, with an already reduced cooling demand by closing the refrigerator compartment of the refrigerator, the refrigeration demand al ⁇ by the memory is provided.
- the power ⁇ recording of the refrigerator is then measured only by the Components of the cooling cabinet for cooling, such as ei ⁇ nen fan, the controller and a conveyor.
- the refrigerated cabinet can thus be operated autonomously via the storage. This can also disturbances and failures of
- Cooling system or a cooling device can be compensated.
- the refrigeration unit thus ensures safe storage of refrigerated goods over a long period of time.
- the refrigeration cabinet also does not rely on a central conveyor (e.g., pump) of the refrigerant supply network.
- the refrigeration unit can also be integrated into an existing refrigeration system, since the internal control of the refrigeration appliance acts independently of the refrigeration system and is only connected to the coolant supply network via the connections.
- Another advantage of the refrigeration appliance described herein is that can be dispensed as is known in the cooling furniture of the prior art, a separate defrosting of the pulptau ⁇ exchanger. A icing of the heat exchanger is achieved by a "defrosting" such that no coolant for cooling the memory is supplied more and therefore the benö ⁇ required "cold” is removed from the memory. This can lead to heating of the memory and the heat exchanger, which also causes a defrost.
- Cooling takes place directly via the coolant, which is conveyed in the cooling system, where ⁇ at a too strong refrigerated coolant on the basis of a high coolant needs an excessive cooling down of the furnishedtau ⁇ exchanger
- the refrigeration cabinet of the technical teaching described herein can essentially be associated with a constant temperature to be cooled.
- a substantially defined and hardly fluctuating cooling temperature can be provided in the heat exchanger.
- the coolant control device is a speed-controlled pump. Through the pump, the supply of coolant from the coolant supply network can be adjusted continuously, with a high flow rate and a rapid cooling or discharging of the memory can be done.
- the storage container may consist of different materials and has an insulation.
- the isolation prevents the absorption of heat from components of the cabinet inner ⁇ half of the cabinet.
- the insulation surrounding the reservoir except for the portion of the storage container, via which the heat exchanger ⁇ coupled to the storage tank.
- the refrigerated cabinet may include a second coolant conduit arrangement that is routed through the storage vessel and connected to the heat exchanger.
- the second coolant line assembly is not directly connected to the coolant supply network, but provides an internal, separate coolant circuit.
- the coolant in the second coolant line arrangement is cooled via the storage container, wherein the sections of the second coolant line arrangement which are guided through the storage container can likewise run in a meandering or helical manner.
- the second coolant line arrangement is arranged in particular within the storage container such that a defined discharging and thawing, ie heat transfer, for example, phase change from solid to liquid (eg thawing of the frozen storage medium). ums), done from outside to inside.
- the lines of the second coolant line arrangement are to the lines of the coolant line arrangement, which with the Coolant supply network is connected, spaced.
- a speed-controlled pump can be arranged in the flow of the second coolant line arrangement. The pump in the flow of the second coolant line arrangement regulates the supply of coolant from the second coolant line arrangement to the heat exchanger, wherein the heated coolant returns the heat to the memory.
- the control of the refrigerated appliance is connected to further devices and sensors which have, for example, temperature detection devices.
- the temperature detection devices detect both the temperature in the cooling space at different positions and the temperature of the coolant in the second coolant line arrangement.
- temperature detection devices may be provided in the memory, via which the loading state of the memory can be determined.
- Temperature detection devices may be provided in all variants described herein. Alternatively, the temperature of a store can also be determined via the temperature of coolants, for which purpose temperature acquisition devices are provided in the corresponding heats and returns.
- the heat exchanger can be coupled to the storage medium accommodated in the storage container via at least one thermally conductive section of the storage container. This results in various embodiments .
- a reservoir is provided which is cooled or discharged via a coolant line assembly connected to a coolant supply network.
- the storage tank is directly connected to a heat exchanger.
- the heat exchanger consists for example of a thermally conductive metal and is connected to a blazelei ⁇ border portion of the memory.
- the cabinet may include at least one speed-controlled Venti ⁇ lator, which serves for the circulation of air within the refrigeration compartment.
- a speed-controlled fan can therefore also in a refrigerated cabinet with a memory and directly coupled thereto heat exchanger without second coolant line arrangement provide defined cooling of the refrigerator.
- the heat exchanger in this case has cooling ribs which provide a relatively large heat exchanger surface.
- the cooling furniture can be further formed in further embodiments as a cooling rack. Refrigerated shelves usually have a page that can be opened to make the cold room accessible from the outside.
- a device for closing the cooling rack can be formed for example by a roller blind. In the open state of the roller blind cold air is circulated through openings in the upper and lower portions of the cooling rack, wherein the circulation takes place from top to bottom.
- adesys- comprising at least one cooling furniture vorste ⁇ variants and proceeding described a refrigerating unit, being guided from a central coolant line arrangement with the at least one cooling furniture, a coolant through a flow to ⁇ and discharged via a return and the cold generator brings the coolant to an adjustable temperature, wherein
- the circulation of air through at least one heat exchanger for cooling the cooling space is controlled by the control of the refrigerated cabinet, and / or
- the supply of coolant is controlled to at least one heat exchanger via the control of the coolant.
- the cold generator may be, for example, a heat pump, which brings a coolant to a certain temperature.
- a coolant various known from the prior art ⁇ known coolant can be used.
- a brine water-glycol mixture
- the supply to the individual refrigeration units via their respectiveméffenre ⁇ gel devices.
- the coolant can be brought to a very low temperature via the cold generator.
- the individual refrigeration units can also be controlled independently and are in a disconnected state from the refrigerant generator in a position for an extended period, a need-dependent cooling of the cooling chamber si ⁇ cher creative.
- a method of controlling a refrigerated cabinet of the technical teaching described herein comprising at least one refrigerator for holding refrigerated goods, a storage having a storage container accommodating a storage medium, a heat exchanger, a controller, and a refrigerant piping - Has tion that is connectable via connections to a coolant supply network, wherein the coolant line arrangement is guided through the storage container, the heat exchanger shear thermally coupled to the storage medium received in the storage medium and in the flow ofméstofföns ⁇ arrangement a coolant control device is arranged, wherein
- the heat exchanger is cooled by the storage medium.
- the circulation of air for cooling the cooling space takes place via at least one variable-speed fan.
- Fig. 1 is a schematic representation of a refrigerated cabinet
- FIG. 2 shows a further schematic illustration of a refrigerator
- Fig. 3 is a still further schematic representation of a
- FIG. 4 is a still further schematic representation of a
- Fig. 5 is a schematic representation of a memory with a directly coupled heat exchanger.
- Fig. 1 shows a schematic representation of a refrigeration cabinet 10.
- the cabinet 10 may for example be a cooling rack ⁇ forms and be part of a cooling system having a plurality of refrigeration units 10.
- a cooling device for example a heat pump, is provided, which carries a cooling medium guided in a coolant supply network. tel cools.
- the coolant supply network has a flow 50 and a return 52. About the flow 50 ge ⁇ cooled coolant is supplied to the cooling furniture 10. The recirculated and heated by the cooling furniture 10 coolant is returned via the return 52 to the chiller, which brings the coolant to a certain temperature.
- the refrigerator 10 has a housing 12.
- the housing 12 surrounds the facilities of the refrigerated cabinet 10 and a cooling space 14.
- a closing device which can release the schematically indicated cooling chamber 14 and close.
- Such a device is known, for example, as a roller blind for refrigerated shelves.
- the refrigerator 10 has a memory 15 in which a first line arrangement is performed.
- the first line arrangement is connected via its feed line 28 to the feed line 50 of the cooling medium supply network.
- the coolant line arrangement is led out via the return 30 from the memory 15 and the refrigerator 10 and is connected to the return 52 of the
- Coolant supply network connected.
- a coolant control device 22 is arranged.
- the coolant control device 22 may be designed, for example, as a valve or as a speed-controlled pump 38 (see FIG. 2).
- the coolant control device 22 and the speed-controlled pump 38 therefore regulate the supply of coolant from the coolant supply network in the memory 15th
- the memory 15 has a housing 16.
- the housing 16 is surrounded by an insulation 18 which substantially thermally isolates the reservoir 15 from the space surrounding it within the refrigerator 10.
- a cooling medium recorded in the memory 15.
- the cooling medium can be provided for example by water.
- the cooling medium is cooled in the memory 15. For example, a phase transformation takes place so that the storage medium changes from a liquid to a solid phase.
- part of a second coolant line arrangement is guided in the store 15.
- the second coolant line arrangement is also coupled to a heat exchanger 24, wherein a speed-controlled pump 32 is provided in the flow 34 of the second coolant line arrangement.
- a speed-controlled pump 32 Via the pump 32, a coolant in the separate coolant ⁇ circulation of the second coolant line arrangement is circulated.
- the coolant in the second coolant circuit is cooled via the reservoir 15 and fed via the pump 32 to the heat exchanger 24.
- Via a fan 26, which is also speed controlled air is ge ⁇ leads via the heat exchanger 24, so that cooling of the air takes place.
- the cooled air is conducted into the goods space or cooling space 14 and / or circulated in the goods space or cooling space 14.
- a controller 20 controls the coolant control device 22, the pump 32 and the fan 36.
- the controller 20 can take on even more tasks.
- the controller 20 is coupled to temperature detection devices which detect the temperature in the cooling space 14, in the flow 34 and in the return 36 of the second coolant line arrangement and in the supply line 28 and in the return line 30 of the first coolant line arrangement.
- the temperature in the memory 15 can be detected at different positions via temperature detection devices.
- About the temperature A cooling requirement for goods in the cooling space 14 by the controller 20 may be determined by the detection devices.
- the controller 20 regulates the pump 32 as a function of the determined cooling requirement, so that a larger amount of coolant can be supplied to the heat exchanger 24.
- the line sections of the second coolant line arrangement in particular the line sections of the supply line 34 and the return line 36, which run within the housing 16 of the memory 15, are arranged so that a cooling of the coolant guided therein takes place such that thawing of the memory 15 or a Phase transformation of the storage medium from solid to liquid takes place from outside to inside. Additional borrowed can be used without a phase transformation latent heat of the storage medium for unloading and thawing of Spei ⁇ chers 15th
- the unloading of the accumulator 15 takes place as a function of the supply of coolant via the coolant supply line in the supply line 50 via the coolant regulating device 22 or the pump 38 completely discharged, the supply of coolant via the flow 50 in the memory 15 via the coolant control device 22 and the pump 38 can be prevented.
- the cooling of the cooling space 14 is controlled by means of the pump 32, for which purpose the quantity of coolant in the second coolant circulation with the second coolant line arrangement to the heat exchanger 24 is regulated.
- the coolant control device can provide 22 the supply of coolant from the radiator 50 and the amount of coolant re ⁇ rules.
- a pump 38 allows a continuous adjustment of the coolant flow rate.
- the fan 26 being in height ⁇ ren flow rates of the air it is heated less than at lower airflows determines the amount of recirculated air. If the memory 15 is discharged to a certain extent and / or the coolant supply via the flow line 50 of the coolant supply network is no longer present, an autonomous operation of the cooling cabinet 10 can take place.
- the memory 15 serves as a cold generator and provides cooling of the guided in the second coolant circuit coolant.
- the design of the memory 15 in relation to the dimensioning ⁇ tion of the cooling space 14 and the maximum male goods in the cooling chamber 14 can be done arbitrarily.
- ⁇ br/> ⁇ br/> In heat pumps as a cold generator, this has the advantage that the heat pump cycles, ie the intervals between switching on and off to be enlarged.
- emergency cooling may be provided upon failure of the refrigerator.
- the cooling units 10 of the cooling system, de ⁇ ren memory 15 have a minimum discharge state, can bring the temperature of the coolant in the supply network substantially to a certain temperature, so mindes ⁇ least cooled another cooling cabinet 10 of the cooling system and / or its memory 15 is discharged ,
- FIG. 2 shows a further schematic representation of the cooling ⁇ furniture 10, wherein the coolant control device 22 is designed as a speed-controlled pump 38 and in the flow 28 is arranged net.
- the coolant control device 22 is designed as a speed-controlled pump 38 and in the flow 28 is arranged net.
- valves may also be provided in other embodiments, not shown.
- cooling furniture 10 shown in FIGS. 1 to 4 further components such as valves, insulation, assembly and connecting elements and control components, which are not shown.
- FIG. 3 shows a still further schematic representation of a refrigerated cabinet 10 with a heat exchanger 24 connected directly to the accumulator 15.
- the housing 16 of the accumulator 15 is made of a thermally conductive material and has an insulation 18, which stores the accumulator 15 except for one Section 40, above which the memory 15 is connected to the heat exchanger 24 isolated. Furthermore, only the portion 40 may consist of a thermally conductive material.
- the rest of the housing 16 may be made of other materials, for example, have thermally insulating properties.
- the refrigeration units 10 of FIG. 3 as a cooling or unloading of the memory 15 via a coolant which is supplied via the lead 50 ei ⁇ nes coolant supply network takes place. The supply of coolant via the supply network via the pump 32.
- the controller 20 of the refrigerator 10 controls the speed of the pump 32, the amount of refrigerant that is passed from the coolant supply network in the memory 15 to discharge the memory 15.
- a rapid discharge of the accumulator 15 can be achieved.
- a lower speed of the pump 32 can be adjusted via the controller 20, when the coolant has a too low Tem ⁇ temperature. This ensures that a defined discharge of the memory 15 takes place.
- coolant in particular the flow 28 and the return 30 are arranged at a distance from the heat exchanger 24.
- a coolant from a central supply ⁇ line is provided in a conventional cooling system for refrigerated shelves from the prior art with a goods room temperature of 4 ° C.
- This coolant has a temperature of -2 ° C. Due to the low temperature of the coolant, it can therefore come in a short time to a relatively strong icing of a heat exchanger.
- FIG. 4 shows a still further schematic representation of a refrigerated cabinet 10, wherein the embodiment of FIG. 4 differs from that of the embodiment of FIG. 3 in that instead of a variable-speed pump 32, generally a coolant control device 22 is arranged in the supply line 28.
- the coolant control device 22 may, for example, be a valve.
- Fig. 5 shows a schematic sectional view of the memory 15 and the heat exchanger 24.
- the memory 15 may also have trapezoidal side walls in the longitudinal ⁇ direction.
- the unloading from the inside out is shown schematically represents 45 Darge ⁇ in Fig. 4 through the frozen sections of the storage medium.
- the storage medium 45 first freezes at the coolant lines 48, which have a high thermal conductivity at least in the sections in which they are guided within the storage 15.
- the housing 16 of the memory 15 has additional connections for the coolant lines 48.
- the storage container or a storage container with a heat exchanger 24 is an assembly that can be retrofitted into a refrigeration unit 10. This means that coolant lines 48 are already arranged inside the memory 15 and a storage medium 44 is provided in the memory 15. about According to defined connections then a connection to a flow 28 and a return 30 of a first coolant line arrangement can be made.
- a coupling with a second coolant line arrangement can take place via further optionally provided connections for a flow 34 and a return 36.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017109357.5A DE102017109357B4 (de) | 2017-05-02 | 2017-05-02 | Kühlmöbel mit Speicher und Kühlsystem |
PCT/EP2018/056335 WO2018202347A1 (de) | 2017-05-02 | 2018-03-14 | Kühlmöbel mit speicher, kühlsystem und verfahren zum steuern eines kühlmöbels mit einem speicher |
Publications (2)
Publication Number | Publication Date |
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EP3619483A1 true EP3619483A1 (de) | 2020-03-11 |
EP3619483B1 EP3619483B1 (de) | 2023-07-26 |
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ID=61913119
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Application Number | Title | Priority Date | Filing Date |
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EP18716516.2A Active EP3619483B1 (de) | 2017-05-02 | 2018-03-14 | Kühlmöbel mit speicher, kühlsystem und verfahren zum steuern eines kühlmöbels mit einem speicher |
Country Status (7)
Country | Link |
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US (1) | US11199354B2 (de) |
EP (1) | EP3619483B1 (de) |
DE (1) | DE102017109357B4 (de) |
DK (1) | DK3619483T3 (de) |
FI (1) | FI3619483T3 (de) |
PL (1) | PL3619483T3 (de) |
WO (1) | WO2018202347A1 (de) |
Families Citing this family (3)
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CN110345781B (zh) * | 2019-06-25 | 2021-02-26 | 徐州三美电器科技有限公司 | 一种用于生产金属加工液的冷却装置 |
CN112869421B (zh) * | 2019-11-29 | 2023-10-10 | 青岛海尔特种电冰柜有限公司 | 一种恒温恒湿酒柜的控制方法及恒温恒湿酒柜 |
CN112869422B (zh) * | 2019-11-29 | 2023-10-10 | 青岛海尔特种电冰柜有限公司 | 一种恒温恒湿酒柜的控制方法及恒温恒湿酒柜 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5678626A (en) * | 1994-08-19 | 1997-10-21 | Lennox Industries Inc. | Air conditioning system with thermal energy storage and load leveling capacity |
US20060048520A1 (en) * | 2004-09-09 | 2006-03-09 | U-Long Co., Ltd. | Cooling/heating pad |
US8061153B2 (en) * | 2006-12-28 | 2011-11-22 | Whirlpool Corporation | Refrigeration appliance with optional storage module |
US7735461B2 (en) * | 2008-02-19 | 2010-06-15 | Aqwest Llc | Engine cooling system with overload handling capability |
US20110259041A1 (en) * | 2010-04-21 | 2011-10-27 | Whirlpool Corporation | High efficiency condenser |
DE102010041951A1 (de) * | 2010-10-04 | 2012-04-05 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einem Kältespeicher |
DE102011104140A1 (de) | 2011-06-14 | 2012-12-20 | Franz Hegele | Kühlvorrichtungen für Lebensmittel |
DE102012207682A1 (de) * | 2012-05-09 | 2013-11-14 | BSH Bosch und Siemens Hausgeräte GmbH | Haushaltskältegerät mit drei Temperaturerfassungssensoren und Verfahren zum Betreiben eines Haushaltskältegeräts |
US9366483B2 (en) | 2013-11-27 | 2016-06-14 | Tokitac LLC | Temperature-controlled container systems for use within a refrigeration device |
JP6421450B2 (ja) * | 2014-05-14 | 2018-11-14 | 富士電機株式会社 | 収容庫 |
ES2887417T3 (es) * | 2015-03-30 | 2021-12-22 | Viessmann Refrigeration Solutions Gmbh | Sistema de refrigeración y procedimiento para el funcionamiento del sistema de refrigeración |
-
2017
- 2017-05-02 DE DE102017109357.5A patent/DE102017109357B4/de active Active
-
2018
- 2018-03-14 FI FIEP18716516.2T patent/FI3619483T3/fi active
- 2018-03-14 US US16/610,796 patent/US11199354B2/en active Active
- 2018-03-14 WO PCT/EP2018/056335 patent/WO2018202347A1/de unknown
- 2018-03-14 PL PL18716516.2T patent/PL3619483T3/pl unknown
- 2018-03-14 DK DK18716516.2T patent/DK3619483T3/da active
- 2018-03-14 EP EP18716516.2A patent/EP3619483B1/de active Active
Also Published As
Publication number | Publication date |
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EP3619483B1 (de) | 2023-07-26 |
DE102017109357B4 (de) | 2022-04-28 |
PL3619483T3 (pl) | 2024-03-11 |
WO2018202347A1 (de) | 2018-11-08 |
FI3619483T3 (fi) | 2023-10-18 |
US20200072524A1 (en) | 2020-03-05 |
DK3619483T3 (da) | 2023-10-16 |
DE102017109357A1 (de) | 2018-11-08 |
US11199354B2 (en) | 2021-12-14 |
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