EP1455149B1 - A connection-ready refrigerator and arrangement of such a refrigerator - Google Patents

A connection-ready refrigerator and arrangement of such a refrigerator Download PDF

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Publication number
EP1455149B1
EP1455149B1 EP04005169A EP04005169A EP1455149B1 EP 1455149 B1 EP1455149 B1 EP 1455149B1 EP 04005169 A EP04005169 A EP 04005169A EP 04005169 A EP04005169 A EP 04005169A EP 1455149 B1 EP1455149 B1 EP 1455149B1
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EP
European Patent Office
Prior art keywords
refrigerator
ready
connection
condenser
freezer
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Expired - Lifetime
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EP04005169A
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German (de)
French (fr)
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EP1455149A1 (en
Inventor
Dieter Weidenbach
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Carrier Kaeltetechnik Deutschland GmbH
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Linde Kaeltetechnik GmbH
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    • 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0403—Refrigeration circuit bypassing means for the condenser
    • 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

Definitions

  • the invention relates to a plug-in refrigerator and / or freezer, comprising at least one liquefaction cycle.
  • the invention relates to an arrangement of at least two plug-in refrigerated and / or freezer units.
  • the invention relates to a method for operating a plug-in refrigerator and / or freezer cabinet or an arrangement of at least two plug-in refrigerators and / or freezers.
  • CA-A-2 298 754 describes no plug-in refrigerator and / or freezer but quite generally a cooling system in which, in the usual way, the condenser coils are arranged outdoors, ie outside of the corresponding building.
  • an outdoor temperature sensor is provided, and depending on the present outdoor temperature, other condenser on or off. All condensers are cooled against the outside ambient air.
  • WO-A-01/20234 relates to a combination device, which can be used both for cooling and for heating water.
  • it has a liquefaction cycle with a condenser cooled against the ambient air and at least one additional condenser, which is designed such that the medium circulating in the liquefaction cycle can operationally heat water of a fluid line.
  • the operation of the system is controlled.
  • Object of the present invention is to provide a generic plug-in refrigerator and / or freezer cabinets, which avoids the aforementioned disadvantages.
  • a further object of the present invention is to provide an arrangement of at least two plug-in refrigerator and / or freezer units and a method for operating a plug-in refrigerator and / or freezer cabinet or an arrangement of at least two plug-in refrigerator and / or freezer units; the or which avoids the aforementioned disadvantages.
  • the arrangement according to the invention of at least two plug-in refrigerated and / or freezer units is characterized in that the plug-in refrigerated and / or freezer units are connected via their fluid lines to at least one central line network and / or connectable.
  • the opening or closing of this fluid line can also be achieved by switching the pump on or off.
  • the liquefaction cycle of the plug-in refrigerator and / or freezer cabinet now has at least one additional condenser connected in parallel or in series.
  • This is connected to a fluid line and / or connectable, wherein in the fluid line preferably water and / or a cold brine flows or circulates.
  • the heat of the plug-in refrigerator and / or freezer cabinet arising from the additional condenser can be removed from the furniture.
  • a heat transfer to the (immediate) environment of plug-in refrigerator and / or freezer cabinet is thereby largely prevented.
  • the fluid line has a line coupling, preferably a quick coupling, by means of which it is connectable to an external line network, on.
  • external line network is understood to mean a network laid inside a retail store to which the plug-in refrigerator and / or freezer units according to the invention can be connected via their fluid lines.
  • the external pipe network is in turn connected to outside and / or within the store arranged heat exchangers and / or consumers in connection, so that the withdrawn from the furniture heat can be delivered or recycled at a suitable location.
  • the above-described embodiment has the advantage that even in the case of a redesign of a super or wholesale market, a quick and easy disconnection and connection of the plug-in refrigerator and / or freezer units according to the invention to the external line network can be realized.
  • the method according to the invention for operating an arrangement of at least two plug-in refrigerated and / or freezer units, wherein these are arranged in a shop or cold room it is proposed that, depending on the temperature in the store or refrigerator, the via the external line network at least one of the plug-in refrigerated and / or freezer furniture dissipated heat is used for heating and / or cooling of the store or cold room.
  • the refrigerant present in liquid form (mixture) is supplied to the evaporator K and evaporated in this against the cooled, circulating in the refrigeration and / or freezer cabin cooling air flow. Subsequently, the vaporized refrigerant (mixture) is fed via line 2 to the compressor 3 and fed to the (actual) condenser V1 of the liquefaction cycle after completion of the compression via lines 4, 6 and 8. In a conventional liquefaction cycle can of course be dispensed with the 3-way valve 5. After renewed liquefaction of the refrigerant (mixture) it in the condenser V1 this is again - as already described - fed via line 1 to the evaporator K.
  • At least one additional condenser V2 is provided. This can be arranged either in parallel or in series with the actual liquefier V1 of the liquefaction cycle.
  • An interconnection as shown in the figure via the aforementioned 3-way valve 5 and the bypass line 7 allows both a series and a parallel connection of the two condenser V1 and V2 to each other depending on the position of the 3-way valve.
  • the additional condenser V2 is connected via a fluid line 9 and 10 with an external line network, not shown in the figure.
  • a circulation pump 11 is provided in the fluid line, which supports the transport of the guided through the additional condenser V2 fluid within the external line network.
  • the refrigerant circulating in the liquefaction cycle can be conducted, for example, first through the additional condenser V2 and then through the actual condenser V1 with the line 6 blocked.
  • the lines 6 and 7 are open, a distribution of the refrigerant (mixture) to the two condenser V1 and V2 can take place, while with closed line 7, only the actual condenser V1 of the liquefaction cycle is flowed through by the refrigerant (mixture).
  • a disadvantage of the plug-in refrigerator and / or freezer units according to the invention is that their production costs are higher compared to generic furniture, which have no additional condenser. However, this disadvantage is compensated by the advantages associated with the invention.
  • the invention provides the possibility to avoid the disadvantages associated with the hitherto unregulated heat leakage in plug-in refrigeration and / or freezer furniture and at the same time to achieve advantages in terms of the energy balance of a shop.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Details Of Garments (AREA)

Abstract

A condensation circuit has an additional condenser (V2) connected in parallel or in series, which links to fluid pipes (9,10) and to the first condenser (V1) in the condensation circuit. If the first condenser and the additional condenser connect in parallel, the additional condenser fits in a bypass pipe (7) that surrounds the first condenser. Independent claims are also included for the following: (a) An arrangement of domestic refrigerators/deep freezers ready to plug in and connect up; (b) and for a method of operating a domestic refrigerator/deep freezer ready to plug in and connect up or of operating an arrangement of domestic refrigerators/deep freezers ready to plug in and connect up.

Description

Die Erfindung betrifft ein steckerfertiges Kühl- und/oder Tiefkühlmöbel, aufweisend wenigstens einen Verflüssigungskreislauf.The invention relates to a plug-in refrigerator and / or freezer, comprising at least one liquefaction cycle.

Ferner betrifft die Erfindung eine Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln.Furthermore, the invention relates to an arrangement of at least two plug-in refrigerated and / or freezer units.

Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben eines steckerfertigen Kühl- und/oder Tiefkühlmöbels oder einer Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln.Furthermore, the invention relates to a method for operating a plug-in refrigerator and / or freezer cabinet or an arrangement of at least two plug-in refrigerators and / or freezers.

Unter dem Begriff "steckerfertiges Kühl- und/oder Tiefkühlmöbel" sind Kühl- und/oder Tiefkühlmöbel zu versehen, die sämtliche Aggregate, die für die Erzeugung einer (Tief)Kühltemperatur innerhalb des Möbels erforderlich sind, aufweisen. Derartige steckerfertige Kühl- und/oder Tiefkühlmöbel haben den großen Vorteil, dass sie schneller und einfacher in Betrieb genommen werden können und eine hohe Flexibilität beim Neu- sowie Umbau eines Ladengeschäftes ermöglichen.The term "ready to plug in refrigeration and / or freezer" refrigerator and / or freezer must be provided, which have all the aggregates that are required for the generation of a (low) cooling temperature within the cabinet. Such plug-in refrigerators and / or freezers have the great advantage that they can be put into operation faster and easier and allow a high degree of flexibility in the construction and renovation of a retail store.

Jedoch wird die innerhalb derartiger Kühl- und/oder Tiefkühlmöbel entstehende warme Verflüssigungsluft ungeregelt über Außenmantelverflüssiger mittels im Außenmantel der Möbel angebrachte Verflüssigerrohre oder luftgekühlte Verflüssiger unmittelbar an die Umgebung der Möbel abgegeben.However, the resulting within such refrigeration and / or freezer furniture warm liquefaction is unregulated delivered via Außenmantelverflüssiger by means mounted in the outer jacket of the furniture condenser tubes or air-cooled condenser directly to the environment of the furniture.

Bei einer Häufung von steckerfertigen Kühl- und/oder Tiefkühlmöbeln - wie sie in Super- bzw. Großmärkten der Regelfall ist - führt dies dazu, dass die Raumtemperatur ansteigt. Insbesondere während der Sommermonate kann dies über das erträgliche Maß hinaus erfolgen, so dass gegenklimatisiert werden muss. Von Vorteil hierbei ist jedoch, dass die steckerfertigen Kühl- und/oder Tiefkühlmöbel während der Heizperiode kostenlos - wenn auch ungeregelt - Wärme liefern.An accumulation of plug-in refrigerators and / or freezers - as is the rule in supermarkets and hypermarkets - causes room temperature to rise. In particular, during the summer months, this can be done beyond the tolerable level, so that must be air-conditioned. The advantage of this is, however, that the plug-in refrigerator and / or freezer during the heating season free - albeit unregulated - provide heat.

CA-A-2 298 754 beschreibt kein steckerfertiges Kühl- und/oder Tiefkühlmöbel sondern ganz generell ein Kühlsystem, bei dem, bei dem in der üblichen Weise die Verflüssigerschlangen im Freien, d. h. außerhalb des entsprechenden Gebäudes angeordnet sind. Um jahreszeitliche Temperaturschwankungen zu kompensieren, und um insbesondere das Kältemittel effizient einzusetzen, ist ein Außentemperatursensor vorgesehen, und je nach der vorliegenden Außentemperatur werden weitere Verflüssiger zu- bzw. abgeschaltet. Sämtliche Verflüssiger werden gegen die Außenumgebungsluft gekühlt. CA-A-2 298 754 describes no plug-in refrigerator and / or freezer but quite generally a cooling system in which, in the usual way, the condenser coils are arranged outdoors, ie outside of the corresponding building. In order to compensate for seasonal temperature fluctuations, and in particular to use the refrigerant efficiently, an outdoor temperature sensor is provided, and depending on the present outdoor temperature, other condenser on or off. All condensers are cooled against the outside ambient air.

WO-A-01/20234 betrifft ein Kombinationsgerät, welches sowohl zum Kühlen als auch zum Erhitzen von Wasser verwendet werden kann. Zu diesem Zweck weist es einen Verflüssigungskreislauf mit einem gegen die Umgebungsluft gekühlten Verflüssiger und mindestens einem zusätzlichen Verflüssiger auf, der derart ausgebildet ist, dass betriebsmäßig das in dem Verflüssigungskreislauf zirkulierende Medium Wasser einer Fluidleitung erwärmen kann. In Abhängigkeit von der Temperatur in dem zu kühlenden Raum bzw. in Abhängigkeit von der Temperatur des zu erwärmenden Wassers, wird der Betrieb des Systems gesteuert. WO-A-01/20234 relates to a combination device, which can be used both for cooling and for heating water. For this purpose, it has a liquefaction cycle with a condenser cooled against the ambient air and at least one additional condenser, which is designed such that the medium circulating in the liquefaction cycle can operationally heat water of a fluid line. Depending on the temperature in the room to be cooled or depending on the temperature of the water to be heated, the operation of the system is controlled.

Aufgabe der vorliegenden Erfindung ist es, ein gattungsgemäßes steckerfertiges Kühl- und/oder Tiefkühlmöbel anzugeben, das die vorgenannten Nachteile vermeidet.Object of the present invention is to provide a generic plug-in refrigerator and / or freezer cabinets, which avoids the aforementioned disadvantages.

Ferner liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln sowie ein Verfahren zum Betreiben eines steckerfertigen Kühl- und/oder Tiefkühlmöbels oder einer Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln zu schaffen, die bzw. das die vorgenannten Nachteile vermeidet.A further object of the present invention is to provide an arrangement of at least two plug-in refrigerator and / or freezer units and a method for operating a plug-in refrigerator and / or freezer cabinet or an arrangement of at least two plug-in refrigerator and / or freezer units; the or which avoids the aforementioned disadvantages.

Zur Lösung dieser Aufgabe wird ein steckerfertiges Kühl- und/oder Tiefkühlmöbel vorgeschlagen gemäß Anspruch 1.To solve this problem, a plug-in refrigerator and / or freezer furniture is proposed according to claim 1.

Die erfindungsgemäße Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln zeichnet sich dadurch aus, dass die steckerfertigen Kühl- und/oder Tiefkühlmöbeln über ihre Fluidleitungen mit wenigstens einem zentralen Leitungsnetz verbunden und/oder verbindbar sind.The arrangement according to the invention of at least two plug-in refrigerated and / or freezer units is characterized in that the plug-in refrigerated and / or freezer units are connected via their fluid lines to at least one central line network and / or connectable.

Das erfindungsgemäße Verfahren zum Betreiben eines steckerfertigen Kühl- und/oder Tiefkühlmöbels oder einer Anordnung von wenigstens zwei steckerfertigen Kühlund/oder Tiefkühlmöbeln gemäß Anspruch 8.The inventive method for operating a plug-in refrigerator and / or freezer cabinet or an arrangement of at least two plug-in refrigerated and / or freezer furniture according to claim 8.

Sofern in der jeweiligen Fluidleitung eine Pumpe vorgesehen ist, kann das Öffnen oder Schließen dieser Fluidleitung auch dadurch erreicht werden, dass die Pumpe an- bzw. abgeschaltet wird.If a pump is provided in the respective fluid line, the opening or closing of this fluid line can also be achieved by switching the pump on or off.

Erfindungsgemäß weist der Verflüssigungskreislauf des steckerfertigen Kühl- und/oder Tiefkühlmöbels nunmehr wenigstens einen zusätzlichen, parallel oder in Reihe geschalteten Verflüssiger auf.According to the invention, the liquefaction cycle of the plug-in refrigerator and / or freezer cabinet now has at least one additional condenser connected in parallel or in series.

Dieser ist mit einer Fluidleitung verbunden und/oder verbindbar, wobei in der Fluidleitung vorzugsweise Wasser und/oder eine Kältesole fließt bzw. zirkuliert.This is connected to a fluid line and / or connectable, wherein in the fluid line preferably water and / or a cold brine flows or circulates.

Mittels des bzw. der vorgenannten Fluide kann die an dem zusätzlichen Verflüssiger anfallende Wärme des steckerfertigen Kühl- und/oder Tiefkühlmöbels aus dem Möbel abgeführt werden. Eine Wärmeabgabe an die (unmittelbare) Umgebung des steckerfertigen Kühl- und/oder Tiefkühlmöbels wird dadurch weitestgehend verhindert.By means of the above-mentioned fluids, the heat of the plug-in refrigerator and / or freezer cabinet arising from the additional condenser can be removed from the furniture. A heat transfer to the (immediate) environment of plug-in refrigerator and / or freezer cabinet is thereby largely prevented.

Im Falle der Parallelschaltung von Verflüssiger und zusätzlichem Verflüssiger ist bzw. sind der bzw. die zusätzlichen Verflüssiger vorzugsweise in einer den Verflüssiger des Verflüssigungskreislaufes umgehenden Bypass-Leitung angeordnet.In the case of the parallel connection of condenser and additional condenser or the additional condenser or is preferably arranged in a bypass line bypassing the condenser of the liquefaction cycle.

Mittels dieser Ausgestaltung des erfindungsgemäßen steckerfertigen Kühl- und/oder Tiefkühlmöbels ist es nunmehr möglich, das in dem Verflüssigungskreislauf zirkulierende Medium in jedem gewünschten Verhältnis auf den (eigentlichen) Verflüssiger des Verflüssigungskreislaufes sowie den zusätzlichen Verflüssiger zu verteilen.By means of this embodiment of the plug-in refrigerator and / or freezer cabinet according to the invention, it is now possible to distribute the circulating in the liquefaction cycle medium in any desired ratio to the (actual) condenser of the liquefaction cycle and the additional condenser.

Gemäß einer weiteren vorteilhaften Ausgestaltung des steckerfertigen Kühl- und/oder Tiefkühlmöbels weist die Fluidleitung eine Leitungskupplung, vorzugsweise eine Schnellkupplung, mittels derer sie mit einem externen Leitungsnetz verbindbar ist, auf.According to a further advantageous embodiment of the plug-in refrigerator and / or freezer cabinet, the fluid line has a line coupling, preferably a quick coupling, by means of which it is connectable to an external line network, on.

Unter dem Begriff "extemes Leitungsnetz" sei ein innerhalb eines Ladengeschäftes verlegtes Leitungsnetz zu verstehen, an das die erfindungsgemäßen, steckerfertigen Kühl- und/oder Tiefkühlmöbel über ihre Fluidleitungen angeschlossen werden können. Das externe Leitungsnetz steht wiederum mit außer- und/oder innerhalb des Ladengeschäftes angeordneten Wärmetauschem und/oder -verbrauchern in Verbindung, so dass die aus den Möbeln abgezogene Wärme an geeigneter Stelle abgegeben bzw. verwertet werden kann.The term "external line network" is understood to mean a network laid inside a retail store to which the plug-in refrigerator and / or freezer units according to the invention can be connected via their fluid lines. The external pipe network is in turn connected to outside and / or within the store arranged heat exchangers and / or consumers in connection, so that the withdrawn from the furniture heat can be delivered or recycled at a suitable location.

Die vorbeschriebene Ausgestaltung hat den Vorteil, dass auch im Falle einer Neugestaltung eines Super- bzw. Großmarktes ein schnelles und einfaches Ab- sowie Anschließen der erfindungsgemäßen steckerfertigen Kühl- und/oder Tiefkühlmöbel an das externe Leitungsnetz realisierbar sind.The above-described embodiment has the advantage that even in the case of a redesign of a super or wholesale market, a quick and easy disconnection and connection of the plug-in refrigerator and / or freezer units according to the invention to the external line network can be realized.

In Abhängigkeit von der mittels des Temperatursensors ermittelten Temperatur der Umgebung des erfindungsgemäßen steckerfertigen Kühl- und/oder Tiefkühlmöbels kann dann ein Zu- bzw. Abschalten des oder der eigentlichen Verflüssiger und/oder wenigstens eines zusätzlichen Verflüssigers und/oder ein Öffnen oder Schließen wenigstens einer Fluidleitung realisiert werden.Depending on the determined by means of the temperature sensor temperature of the environment of the plug-in refrigerator and / or freezer cabinet according to the invention can then be turned on or off of the actual condenser and / or at least one additional condenser and / or opening or closing at least one fluid line will be realized.

Das erfindungsgemäße Verfahren zum Betreiben einer Anordnung von wenigstens zwei steckerfertigen Kühl- und/oder Tiefkühlmöbeln, wobei diese in einem Laden- oder Kühlraum angeordnet sind, weiterbildend wird vorgeschlagen, dass abhängig von der Temperatur in dem Laden- oder Kühlraum die über das externe Leitungsnetz aus wenigstens einem der steckerfertigen Kühl- und/oder Tiefkühlmöbel abgeführte Wärme zum Erwärmen und/oder Kühlen des Laden- oder Kühlraumes verwendet wird.The method according to the invention for operating an arrangement of at least two plug-in refrigerated and / or freezer units, wherein these are arranged in a shop or cold room, it is proposed that, depending on the temperature in the store or refrigerator, the via the external line network at least one of the plug-in refrigerated and / or freezer furniture dissipated heat is used for heating and / or cooling of the store or cold room.

Die Erfindung sowie weitere Ausgestaltungen derselben seien nachfolgend anhand des in der Figur dargestellten, schematisierten Ausführungsbeispieles näher erläutert.The invention and further embodiments thereof are explained in more detail below with reference to the schematic embodiment shown in the figure.

Dieses zeigt die wesentlichen Bestandteile eines Verflüssigungskreislaufes, wie er in steckerfertigen Kühl- und/oder Tiefkühlmöbeln realisiert wird.This shows the essential components of a liquefaction cycle, as it is implemented in plug-in refrigeration and / or freezer cabinets.

Über die Leitung 1 wird dem Verdampfer K das in flüssiger Form vorliegende Kältemittel(gemisch) zugeführt und in diesem gegen den abzukühlenden, im Kühlund/oder Tiefkühlmöbel zirkulierenden Kühlluftstrom verdampft. Anschließend wird das verdampfte Kältemittel(gemisch) über Leitung 2 dem Verdichter 3 zugeführt und nach erfolgter Verdichtung über die Leitungen 4, 6 und 8 dem (eigentlichen) Verflüssiger V1 des Verflüssigungskreislaufes zugeführt. Bei einem herkömmlichen Verflüssigungskreislauf kann auf das 3-Wege-Ventil 5 selbstverständlich verzichtet werden. Nach erneuter Verflüssigung des Kältemittel(gemisch)es in dem Verflüssiger V1 wird dieses wieder - wie bereits beschrieben - über Leitung 1 dem Verdampfer K zugeführt.Via the line 1, the refrigerant present in liquid form (mixture) is supplied to the evaporator K and evaporated in this against the cooled, circulating in the refrigeration and / or freezer cabin cooling air flow. Subsequently, the vaporized refrigerant (mixture) is fed via line 2 to the compressor 3 and fed to the (actual) condenser V1 of the liquefaction cycle after completion of the compression via lines 4, 6 and 8. In a conventional liquefaction cycle can of course be dispensed with the 3-way valve 5. After renewed liquefaction of the refrigerant (mixture) it in the condenser V1 this is again - as already described - fed via line 1 to the evaporator K.

Erfindungsgemäß ist nunmehr wenigstens ein zusätzlicher Verflüssiger V2 vorgesehen. Dieser kann entweder parallel oder in Reihe geschaltet zu dem eigentlichen Verflüssiger V1 des Verflüssigungskreislaufes angeordnet werden.According to the invention now at least one additional condenser V2 is provided. This can be arranged either in parallel or in series with the actual liquefier V1 of the liquefaction cycle.

Eine wie in der Figur dargestellte Verschaltung über das vorgenannte 3-Wege-Ventil 5 sowie die Bypass-Leitung 7 ermöglicht in Abhängigkeit der Stellung des 3-Wege-Ventiles 5 sowohl eine Reihen- als auch eine Parallelschaltung der beiden Verflüssiger V1 und V2 zueinander.An interconnection as shown in the figure via the aforementioned 3-way valve 5 and the bypass line 7 allows both a series and a parallel connection of the two condenser V1 and V2 to each other depending on the position of the 3-way valve.

Der zusätzliche Verflüssiger V2 ist über eine Fluidleitung 9 und 10 mit einem in der Figur nicht dargestellten externen Leitungsnetz verbunden.The additional condenser V2 is connected via a fluid line 9 and 10 with an external line network, not shown in the figure.

Im Regelfall ist in der Fluidleitung eine Umwälzpumpe 11 vorgesehen, die den Transport des durch den zusätzlichen Verflüssiger V2 geführten Fluids innerhalb des externen Leitungsnetzes unterstützt.As a rule, a circulation pump 11 is provided in the fluid line, which supports the transport of the guided through the additional condenser V2 fluid within the external line network.

Wie bereits erwähnt, lassen sich mit der in der Figur dargestellten Verschaltung der beiden Verflüssiger V1 und V2 unterschiedliche Verfahrensweisen realisieren. So kann das in dem Verflüssigungskreislauf zirkulierende Kältemittel(gemisch) bei gesperrter Leitung 6 beispielsweise zunächst durch den zusätzlichen Verflüssiger V2 und anschließend durch den eigentlichen Verflüssiger V1 geführt werden. Bei geöffneten Leitungen 6 und 7 kann eine Verteilung des Kältemittel(gemisches) auf die beiden Verflüssiger V1 und V2 erfolgen, während bei gesperrter Leitung 7 nur der eigentliche Verflüssiger V1 des Verflüssigungskreislaufes von dem Kältemittel(gemisch) durchströmt wird.As already mentioned, different procedures can be implemented with the interconnection of the two condensers V1 and V2 shown in the figure. Thus, the refrigerant circulating in the liquefaction cycle (mixture) can be conducted, for example, first through the additional condenser V2 and then through the actual condenser V1 with the line 6 blocked. When the lines 6 and 7 are open, a distribution of the refrigerant (mixture) to the two condenser V1 and V2 can take place, while with closed line 7, only the actual condenser V1 of the liquefaction cycle is flowed through by the refrigerant (mixture).

So ausschließlich eine Parallelschaltung der beiden Verflüssiger V1 und V2 realisiert werden, so erübrigen sich das 3-Wege-Ventil 5 sowie die Leitung 6.So only a parallel connection of the two condensers V1 and V2 are realized, so unnecessary, the 3-way valve 5 and the line. 6

Von Nachteil bei den erfindungsgemäßen steckerfertigen Kühl- und/oder Tiefkühlmöbeln ist, dass ihre Produktionskosten gegenüber gattungsgemäßen Möbeln, die keinen zusätzlichen Verflüssiger aufweisen, höher sind. Dieser Nachteil wird jedoch durch die mit der Erfindung verbundenen Vorteile kompensiert.A disadvantage of the plug-in refrigerator and / or freezer units according to the invention is that their production costs are higher compared to generic furniture, which have no additional condenser. However, this disadvantage is compensated by the advantages associated with the invention.

Die Erfindung schafft die Möglichkeit, die mit dem bisher ungeregelten Wärmeaustritt bei steckerfertigen Kühl- und/oder Tiefkühlmöbeln verbundenen Nachteile zu vermeiden und gleichzeitig Vorteile im Hinblick auf die Energiebilanz eines Ladengeschäftes zu erzielen.The invention provides the possibility to avoid the disadvantages associated with the hitherto unregulated heat leakage in plug-in refrigeration and / or freezer furniture and at the same time to achieve advantages in terms of the energy balance of a shop.

Claims (9)

  1. Connection-ready refrigerator and/or freezer cabinet, comprising at least one condensing circuit with a condenser (V1) that is cooled against the ambient air of the connection-ready refrigerator and/or freezer cabinet, and at least one additional condenser (V2) connected in parallel or in series, which is constructed so that in the course of operation the medium circulating in the condensing circuit can be cooled against a fluid carried in a fluid pipe (9, 10), the connection-ready refrigerator and/or freezer cabinet further comprising an ambient temperature sensor, the connection-ready refrigerator and/or freezer cabinet being constructed such that, depending on the temperature of the environment of the connection-ready refrigerator and/or freezer cabinet detected by means of the ambient temperature sensor, the condenser (V1) cooled by ambient air and/or the additional condenser (V2) may be switched on or off and/or the fluid pipe (9, 10) may be opened or closed.
  2. Connection-ready refrigerator and/or freezer cabinet according to claim 1 which comprises two or more additional condensers, characterised in that the additional condensers (V2) are connected in parallel and/or in series to the condenser (V1) of the condensing circuit and/or to the additional condenser(s) (V2).
  3. Connection-ready refrigerator and/or freezer cabinet according to claim 1 or 2, characterised in that in the event that the condenser (V1) and additional condenser (V2) are connected in parallel, the additional condenser (V2) is arranged in a bypass pipe (7) which circumvents the condenser (V1) of the condensing circuit.
  4. Connection-ready refrigerator and/or freezer cabinet according to one of the preceding claims 1 to 3, characterised in that the fluid pipe (9, 10) comprises a pipe coupling, preferably a quick-release coupling, by means of which it can be connected to an external pipe network.
  5. Arrangement of at least two connection-ready refrigerator and/or freezer cabinets according to one of the preceding claims 1 to 4, characterised in that the connection-ready refrigerator and/or freezer cabinets are connected and/or can be connected to at least one external pipe network via their fluid pipes (9, 10).
  6. Arrangement of at least two connection-ready refrigerator and/or freezer cabinets according to claim 5, characterised in that the external pipe network comprises water and/or a refrigerating brine as the fluid.
  7. Arrangement of at least two connection-ready refrigerator and/or freezer cabinets according to claim 5 or 6, characterised in that the external pipe network is connected and/or can be connected to at least one heat/cold consuming unit.
  8. Process for operating a connection-ready refrigerator and/or freezer cabinet in a shop, wherein the connection-ready refrigerator and/or freezer cabinet comprises a condenser (V1) that is cooled against the ambient air in the shop and at least one additional condenser (V2) connected in parallel or in series, which is constructed so that in the course of operation the medium circulating in the condensing circuit can be cooled against a fluid carried in a fluid pipe (9, 10), comprising the steps of
    - detecting the ambient temperature of the connection-ready refrigerator and/or freezer cabinet, and
    - switching on or off the condenser (V1) cooled by ambient air and/or the additional condenser (V2) and/or opening or closing the fluid pipe (9, 10) as a function of the ambient temperature detected.
  9. Process according to claim 8, wherein the connection-ready refrigerator and/or freezer cabinet or cabinets are arranged in a shop or cold storage area, characterised in that depending on the temperature in the shop or cold storage area the heat carried away from at least one of the connection-ready refrigerator and/or freezer cabinets through the external pipe network is used to heat and/or cool the shop or cold storage area.
EP04005169A 2003-03-07 2004-03-04 A connection-ready refrigerator and arrangement of such a refrigerator Expired - Lifetime EP1455149B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10310152 2003-03-07
DE10310152A DE10310152A1 (en) 2003-03-07 2003-03-07 Plug-in refrigerator and arrangement of such refrigerators

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EP1455149A1 EP1455149A1 (en) 2004-09-08
EP1455149B1 true EP1455149B1 (en) 2009-01-21

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EP04005169A Expired - Lifetime EP1455149B1 (en) 2003-03-07 2004-03-04 A connection-ready refrigerator and arrangement of such a refrigerator

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EP (1) EP1455149B1 (en)
AT (1) ATE421666T1 (en)
DE (2) DE10310152A1 (en)
ES (1) ES2319283T3 (en)
NO (1) NO20040967L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5506760B2 (en) * 2011-10-31 2014-05-28 三菱電機株式会社 refrigerator
US20130186116A1 (en) * 2012-01-19 2013-07-25 Samuel M. Sami Outside air water source heat pump
CN104359243A (en) * 2014-11-27 2015-02-18 合肥华凌股份有限公司 Refrigeration system for refrigerator and refrigerator
DE102016115604B4 (en) 2016-08-23 2020-10-01 Aht Cooling Systems Gmbh Refrigerated counter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1322858C (en) * 1988-08-17 1993-10-12 Masaki Nakao Cooling apparatus and control method therefor
JP3789636B2 (en) * 1998-03-18 2006-06-28 三洋電機株式会社 Freezer refrigerator
WO2001020234A1 (en) * 1999-09-15 2001-03-22 Ut-Battelle, Llc. Combination of a refrigerator and a heat pump and a water heater
CA2298754A1 (en) * 2000-02-11 2001-08-11 Joseph Antoine Michel Grenier Cooling system with variable capacity condenser
JP2002031422A (en) * 2000-07-14 2002-01-31 Toshiba Corp Refrigerator

Also Published As

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ATE421666T1 (en) 2009-02-15
DE502004008890D1 (en) 2009-03-12
EP1455149A1 (en) 2004-09-08
DE10310152A1 (en) 2004-09-16
ES2319283T3 (en) 2009-05-06
NO20040967L (en) 2004-09-08

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