EP1613899B1 - Installation consisting in an electrical cabinet, a machine compartment or similar, and a cooling system - Google Patents

Installation consisting in an electrical cabinet, a machine compartment or similar, and a cooling system Download PDF

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Publication number
EP1613899B1
EP1613899B1 EP04708354A EP04708354A EP1613899B1 EP 1613899 B1 EP1613899 B1 EP 1613899B1 EP 04708354 A EP04708354 A EP 04708354A EP 04708354 A EP04708354 A EP 04708354A EP 1613899 B1 EP1613899 B1 EP 1613899B1
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EP
European Patent Office
Prior art keywords
housing
sub
accommodation housing
accommodation
wall
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Expired - Lifetime
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EP04708354A
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German (de)
French (fr)
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EP1613899A1 (en
Inventor
Henno Hinder
Andreas MÜLLER
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Rittal GmbH and Co KG
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Rittal GmbH and Co KG
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Publication of EP1613899A1 publication Critical patent/EP1613899A1/en
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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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • the invention relates to an arrangement of a control cabinet, a machine housing or the like. And a recooling system with a refrigeration cycle and a water cycle, wherein the refrigeration cycle with evaporator, condenser and compressor is housed in a receiving housing and the evaporator is associated with the water cycle in the heat exchanging contact.
  • Such recooling systems are used for the air conditioning of control cabinets or machine tools.
  • the cooled water is then available as a cooling medium.
  • the recooling systems are usually in close spatial allocation in addition to the units to be cooled, for example, the machine tool. There, they are often perceived as disturbing due to space requirements.
  • the DE 44 13 130 A1 shows a cooling device with a housing which is attachable to a cabinet.
  • the cooling unit has a refrigerant circuit through which the refrigerant flows, with an evaporator, compressor and condenser, and a liquid-flow cooling circuit with a heat exchanger arranged therein.
  • the refrigeration cycle is housed in the housing by means of a partition dividing its interior, for gas-impermeable coolant separation separated from the interior of the cabinet, while the heat exchanger is arranged in the cabinet facing the interior of the housing.
  • a pump passes the liquid, in particular water, to the heat exchanger.
  • the heat exchanger is supplied with air from the interior of the cabinet by means of a fan, which cools when passing on the heat exchanger. The cooled air is returned to the control cabinet via flow channels.
  • the DE 199 21 554 A1 shows a cooling device for mounting on a control cabinet, wherein in a housing of the refrigerator, two chambers are provided which adjoin one another.
  • the first chamber includes a fan for drawing in air from the inside of the cabinet and part of a heat exchanger of an air-to-air and an active cooling system.
  • the second chamber includes a fan for sucking in ambient air and a portion of the heat exchanger of the air-to-air cooling system and the active cooling system.
  • the EP 1 026 932 B1 shows a modular cabinet system for receiving electrical and electronic units with modules of cooling or air conditioning devices, which are brought via standardized openings in the cabinet interior in flow communication.
  • the receiving housing is attached with its open rear wall to a vertical side panel, such as the control cabinet, the machine housing or a wall and attached thereto, that the interior of the receiving housing is divided by a partition into two subspaces, wherein the one subspace are arranged between the side panel and the partition wall and the second compartment between the partition and the front of the receiving housing, that the condenser and the fan in the receptacle housing front associated subspace and the tank and the pump are arranged in the rear subspace, and that the subspaces are each accessible from the associated side of the receiving housing.
  • the front side compartment of the receiving housing is conveniently accessible front side. If maintenance is to be performed on the water circuit, the unit can be removed from the wall / side panel and the second compartment is accessible through the open rear.
  • the evaporator is undergerbracht in the back subspace of the receiving housing.
  • the evaporator is moved to the second, back subspace, where it is protected from environmental contaminants that may possibly occur in the outer circuit (front compartment). In this way, the service friendliness is further increased.
  • a possible variant of the invention may be characterized in that the evaporator is supplied with a return line of the water circuit, which opens into the tank following the evaporator, that the tank exits from the pump outgoing flow line, that the flow and return line both to the roof area the receiving housing are guided and protrude from this at least with connections for water circulation pipes.
  • a filling of the water circuit can be carried out conveniently from the cover side of the recooling system.
  • the ease of maintenance of the recooling system can also be increased by the fact that a device control electronics undergerbracht in a lateral receiving area of the receiving housing and is accessible via a separate Servicedekkel in the region of a side wall of the receiving housing.
  • a preferred variant of the invention provides that the front part of the subspace communicates with the environment via at least one opening, that the openings are arranged in the front wall of the receiving housing, wherein the fan and the condenser via the openings in communication with the environment and that the Openings are formed by covers or covered by covers that direct the air flow supplied to the condenser and the fan by means of guide elements in different directions.
  • the air flow of the outer circuit alone communicates with the environment via the front of the device.
  • the re-cooling system can also be directly grown to save space laterally adjacent to housing or the like.
  • the fan is a radial fan and that the pump is a submersible pump, which dips into a high in relation to its depth tank.
  • a further embodiment variant of the invention is such that the compressor of the refrigeration cycle is arranged in a receiving region bridging the two subspaces and accessible through the front side of the receiving housing.
  • the compressor is accessible on service via the front of the device.
  • FIG. 1 and 2 is a recooling system shown.
  • This has a receiving housing 10, which has a rear wall 12 and a front wall 11 arranged parallel thereto. Between the rear wall 12 and the front wall 11, a bottom 13, a top wall 14 and side walls 16 extend.
  • a partition wall 15 is arranged. This divides the space surrounded by the receiving housing 10 receiving space into two subspaces.
  • a condenser 32 and a fan 31 of a refrigeration cycle is housed in the front of the device associated subspace.
  • the fan 31 is designed as a radial fan. He sucks on the open front wall 11 air along its axis of rotation from the environment and blows them out radially. The air is then passed through the condenser 32 and returned through the open front wall 11 heated to the environment.
  • An evaporator 22 of the refrigeration cycle is arranged in the second rear subspace of the receiving housing 10.
  • a compressor 34 of the refrigeration cycle is arranged in the region of the bottom 13 of the receiving housing 10.
  • the compressor 34 is arranged so that its connection side and electrical protection through the front wall 11 is accessible through.
  • the individual units of the refrigeration cycle are connected to each other by means of refrigerant lines 33.
  • the rear wall 12 is executed open. This rear compartment takes up a tank 24, in which a pump 23 is immersed.
  • the pump 23 is designed as a submersible pump.
  • the tank 24 is connected via a return line 25 in conjunction with the evaporator 22.
  • the return line 25 is passed through the evaporator 22. Following the evaporator 22, the return line 25 leads to the top wall 14. Here it is attached to the terminal 21.
  • the supply line 26 is also held with a terminal 21 on the top wall 14 and leads to the pump 23rd
  • the open front wall 11 is closed by covers 41, 42.
  • covers 41, 42 In this case, two upper and two lower covers 41, 42 are used.
  • the two covers 41 and 42 are identical, but grown rotated by 180 °. They form openings, which are covered with molded louvred grids.
  • the lamellar gratings have inclined lamellae, which guide the air flow in the direction of the cover or bottom wall 14, 13 as guide elements. Thus, an air short circuit of the incoming and outgoing air is prevented.
  • the covers 41, 42 and a middle Abdekkung 43 can be dismantled. Then the front wall 11 is released and through their openings maintenance work in the front compartment can be performed.
  • the recooling system is mounted on a vertical wall with the rear wall 12. If maintenance is to be performed on the components of the water circuit 22, only the receiving housing 10 must be dismantled from the vertical wall. The open rear wall 12 then allows access to the back subspace.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a recirculation cooling system comprising a refrigeration circuit, a water circuit, a tank and a pump, the evaporator of the refrigeration circuit being allocated to the water circuit in order to exchange heat. All components are contained in a housing. The aim of the invention is to provide a recirculation cooling system that can be positioned in a space-saving manner and is readily accessible for maintenance. To achieve this: the rear wall of the housing is positioned against and fixed to a vertical side panel of, for example, a switchgear cabinet, a machine housing or a wall; the interior of the housing is sub-divided into two sub-chambers by a partition, one sub-chamber being situated between the side panel and the partition and the second sub-chamber being situated between the partition and the front face of the housing; the condenser and the ventilator are located in the sub-chamber allocated to the front face of the housing and the tank and pump are located in the rear sub-chamber; and the respective sub-chambers can be accessed from the respective allocated face of the housing.

Description

Die Erfindung betrifft eine Anordnung aus einem Schaltschrank, einem Maschinengehäuse oder dgl. und einer Rückkühlanlage mit einem Kältekreislauf und einem Wasserkreislauf, wobei der Kältekreislauf mit Verdampfer, Verflüssiger und Kompressor in einem Aufnahmegehäuse untergebracht ist und der Verdampfer dem Wasserkreislauf im wärmeaustauschenden Kontakt zugeordnet ist.The invention relates to an arrangement of a control cabinet, a machine housing or the like. And a recooling system with a refrigeration cycle and a water cycle, wherein the refrigeration cycle with evaporator, condenser and compressor is housed in a receiving housing and the evaporator is associated with the water cycle in the heat exchanging contact.

Solche Rückkühlanlagen werden zur Klimatisierung von Schaltschränken oder Werkzeugmaschinen eingesetzt. Dabei wird von dem Kältekreislauf Kälteleistung in den Wasserkreislauf eingebracht. Das gekühlte Wasser steht dann als Kühlmedium zur Verfügung.Such recooling systems are used for the air conditioning of control cabinets or machine tools. In this case, is introduced from the refrigeration cycle cooling capacity in the water cycle. The cooled water is then available as a cooling medium.

Die Rückkühlanlagen stehen meist in dichter räumlicher Zuordnung neben den zu kühlenden Einheiten, beispielsweise der Werkzeugmaschine. Dort werden sie aus Platzbedarfsgründen häufig als störend empfunden.The recooling systems are usually in close spatial allocation in addition to the units to be cooled, for example, the machine tool. There, they are often perceived as disturbing due to space requirements.

Die DE 44 13 130 A1 zeigt ein Kühlgerät mit einem Gehäuse, das an einem Schaltschrank anbringbar ist. Das Kühlgerät weist einen von Kühlmittel durchströmten Kältekreislauf mit Verdampfer, Verdichter und Verflüssiger sowie einen flüssigkeitsdurchströmten Kühlkreislauf mit darin angeordnetem Wärmetauscher auf. Der Kältekreislauf ist in dem Gehäuse mittels einer dessen Innenraum teilenden, für gasförmige Kühlmittel undurchlässigen Abtrennung getrennt von dem Innenraum des Schaltschranks untergebracht, während der Wärmetauscher in dem dem Schaltschrank zugekehrten Innenraum des Gehäuses angeordnet ist. Eine Pumpe leitet dem Wärmetauscher die Flüssigkeit, insbesondere Wasser zu. Dem Wärmetauscher wird Luft aus dem Innenraum des Schaltschranks mittels eines Ventilators zugeführt, die sich beim Vorbeistreichen an dem Wärmetauscher abkühlt. Die abgekühlte Luft wird dem Schaltschrank wieder über Strömungskanäle zugeführt.The DE 44 13 130 A1 shows a cooling device with a housing which is attachable to a cabinet. The cooling unit has a refrigerant circuit through which the refrigerant flows, with an evaporator, compressor and condenser, and a liquid-flow cooling circuit with a heat exchanger arranged therein. The refrigeration cycle is housed in the housing by means of a partition dividing its interior, for gas-impermeable coolant separation separated from the interior of the cabinet, while the heat exchanger is arranged in the cabinet facing the interior of the housing. A pump passes the liquid, in particular water, to the heat exchanger. The heat exchanger is supplied with air from the interior of the cabinet by means of a fan, which cools when passing on the heat exchanger. The cooled air is returned to the control cabinet via flow channels.

Auch die DE 199 21 554 A1 zeigt ein Kühlgerät zum Anbau an einem Schaltschrank, wobei in einem Gehäuse des Kühlgerätes zwei Kammern vorgesehen sind, die aneinander grenzen. Die erste Kammer umfasst einen Lüfter zum Ansaugen von Luft aus dem Schaltschrankinnern sowie einen Teil eines Wärmetauschers eines Luft-Luft- und eines aktiven Kühlsystems. Die zweite Kammer umfasst einen Lüfter zum Ansaugen von Umgebungsluft sowie einen Teil des Wärmetauschers des Luft-Luft- Kühlsystems und des aktiven Kühlsystems.Also the DE 199 21 554 A1 shows a cooling device for mounting on a control cabinet, wherein in a housing of the refrigerator, two chambers are provided which adjoin one another. The first chamber includes a fan for drawing in air from the inside of the cabinet and part of a heat exchanger of an air-to-air and an active cooling system. The second chamber includes a fan for sucking in ambient air and a portion of the heat exchanger of the air-to-air cooling system and the active cooling system.

Die EP 1 026 932 B1 zeigt ein modulares Schaltschranksystem zur Aufnahme elektrischer und elektronischer Aggregate mit Modulen von Kühl- oder Klimaeinrichtungen, die über genormte Öffnungen mit dem Schaltschrankinnenraum in Strömungsverbindung gebracht werden.The EP 1 026 932 B1 shows a modular cabinet system for receiving electrical and electronic units with modules of cooling or air conditioning devices, which are brought via standardized openings in the cabinet interior in flow communication.

Es ist Aufgabe der Erfindung, eine Anordnung aus einem Schaltschrank, einem Maschinengehäuse oder dgl. und einer Rückkühlanlage der eingangs erwähnten Art zu schaffen, die sich durch eine besonders kompakte Bauweise auszeichnet und bei geringem Platzbedarf servicefreundlich positioniert werden kann.It is an object of the invention to provide an arrangement of a control cabinet, a machine housing or the like. And a recooling system of the type mentioned above, which is characterized by a particularly compact design and can be positioned service friendly in a small footprint.

Diese Aufgabe wird mit den Merkmalen des Anspruches 1 gelöst. Dabei ist vorgesehen, dass das Aufnahmegehäuse mit seiner offen ausgeführten Rückwand an eine vertikale Seitenverkleidung, beispielsweise des Schaltschrankes, des Maschinengehäuses oder einer Wand angesetzt und daran befestigt ist, dass der Innenraum des Aufnahmegehäuses mittels einer Trennwand in zwei Teilräume unterteilt ist, wobei der eine Teilraum zwischen der Seitenverkleidung und der Trennwand und der zweite Teilraum zwischen der Trennwand und der Vorderseite des Aufnahmegehäuses angeordnet sind, dass Verflüssiger und der Ventilator in dem der Aufnahmegehäuse-Vorderseite zugeordneten Teilraum und der Tank sowie die Pumpe im rückseitigen Teilraum angeordnet sind, und dass die Teilräume jeweils von der zugeordneten Seite des Aufnahmegehäuses zugänglich sind.This object is achieved with the features of claim 1. It is envisaged that the receiving housing is attached with its open rear wall to a vertical side panel, such as the control cabinet, the machine housing or a wall and attached thereto, that the interior of the receiving housing is divided by a partition into two subspaces, wherein the one subspace are arranged between the side panel and the partition wall and the second compartment between the partition and the front of the receiving housing, that the condenser and the fan in the receptacle housing front associated subspace and the tank and the pump are arranged in the rear subspace, and that the subspaces are each accessible from the associated side of the receiving housing.

Erfindungsgemäß ist also vorgesehen, eine Rückkühlanlage zu schaffen, die durch ihre kompakte Bauweise entgegen der bisherigen Praxis nicht mehr auf dem Boden aufgestellt werden muss, sondern an einer vertikalen Seitenverkleidung oder Wand aufgehängt werden kann.According to the invention, therefore, to provide a recooling system that no longer needs to be placed on the ground by their compact design contrary to previous practice, but can be hung on a vertical side panel or wall.

Dort ist sie platzsparend untergebracht. Im Servicefall erhält ein Techniker leicht Zugang. Zur Wartung des mit der Umgebung in Verbindung stehenden Außenkreislaufes des Kältkreislaufes ist der vorderseitige Teilraum des Aufnahmegehäuses bequem vorderseitig zugänglich. Falls Wartungen am Wasserkreislauf durchzuführen sind, kann das Gerät von der Wand/Seitenverkleidung abgebaut werden und der zweite Teilraum ist über die offene Rückseite hindurch zugänglich.There it is stored to save space. In case of service, a technician can easily get access. To maintain the external circuit in communication with the environment of the refrigeration cycle, the front side compartment of the receiving housing is conveniently accessible front side. If maintenance is to be performed on the water circuit, the unit can be removed from the wall / side panel and the second compartment is accessible through the open rear.

Gemäß einer bevorzugten Ausgestaltungsvariante der Erfindung ist es vorgesehen, dass der Verdampfer im rückseitigen Teilraum des Aufnahmegehäuses untergerbracht ist. Der Verdampfer ist in den zweiten, rückseitigen Teilraum verlagert, wo er vor Umgebungsverschmutzungen, die evtl. im Außenkreislauf (vorderer Teilraum) auftreten können, geschützt ist. Auf diese Weise ist die Servicefreundlichkeit weiter erhöht.According to a preferred embodiment of the invention, it is provided that the evaporator is untergerbracht in the back subspace of the receiving housing. The evaporator is moved to the second, back subspace, where it is protected from environmental contaminants that may possibly occur in the outer circuit (front compartment). In this way, the service friendliness is further increased.

Eine mögliche Erfindungsvariante kann dadurch gekennzeichnet sein, dass dem Verdampfer eine Rücklaufleitung des Wasserkreislaufes zugeführt ist, die im Anschluß an den Verdampfer in den Tank mündet, dass aus dem Tank eine von der Pumpe abgehende Vorlaufleitung abgeht, dass die Vorlauf- und Rücklaufleitung beide zum Dachbereich des Aufnahmegehäuses geführt sind und aus diesem zumindest mit Anschlüssen für Wasserkreislaufleitungen herausragen. Bei dieser Leitungsführung kann eine Befüllung des Wasserkreislaufes bequem von der Deckelseite der Rückkühlanlage durchgeführt werden.A possible variant of the invention may be characterized in that the evaporator is supplied with a return line of the water circuit, which opens into the tank following the evaporator, that the tank exits from the pump outgoing flow line, that the flow and return line both to the roof area the receiving housing are guided and protrude from this at least with connections for water circulation pipes. With this cable routing, a filling of the water circuit can be carried out conveniently from the cover side of the recooling system.

Dadurch dass, die Vor- und Rücklaufleitung mit den Anschlüssen an der Deckwand des Aufnahmegehäuses befestigt sind, kann ein Anschluß an das oder die zu kühlende/en Systeme einfach erfolgen. Die Anschlüsse sind stabil und geschützt untergebracht.The fact that, the supply and return line are attached to the terminals on the top wall of the receiving housing, a connection to the system or systems to be cooled can be done easily. The connections are stable and protected.

Die Wartungsfreundlichkeit der Rückkühlanlage kann auch noch dadurch erhöht werden, dass eine Geräte-Steuerelektronik in einem seitlichen Aufnahmebereich des Aufnahmegehäuses untergerbracht ist und über einen separaten Servicedekkel im Bereich einer Seitenwand des Aufnahmegehäuses zugänglich ist.The ease of maintenance of the recooling system can also be increased by the fact that a device control electronics untergerbracht in a lateral receiving area of the receiving housing and is accessible via a separate Servicedekkel in the region of a side wall of the receiving housing.

Eine bevorzugte Erfindungsvariante sieht vor, dass der vorderseitige Teilraum über wenigstens eine Öffnung mit der Umgebung in Verbindung steht, dass die Öffnungen in der Frontwand des Aufnahmegehäuses angeordnet sind, wobei der Lüfter und der Verflüssiger über die Öffnungen mit der Umgebung in Verbindung stehen und dass die Öffnungen von Abdeckungen gebildet oder von Abdeckungen überdeckt sind, die den dem Verflüssiger und dem Lüfter zugeführten Luftstrom mittels Leitelementen in unterschiedliche Richtung lenken. Bei dieser Anordnung steht die Luftführung des Außenkreislaufes alleine über die Gerätefrontseite mit der Umgebung in Verbindung. Damit kann die Rückkühlanlage auch platzsparend seitlich an benachbarte Gehäuse oder dergleichen direkt angebaut werden.A preferred variant of the invention provides that the front part of the subspace communicates with the environment via at least one opening, that the openings are arranged in the front wall of the receiving housing, wherein the fan and the condenser via the openings in communication with the environment and that the Openings are formed by covers or covered by covers that direct the air flow supplied to the condenser and the fan by means of guide elements in different directions. In this arrangement, the air flow of the outer circuit alone communicates with the environment via the front of the device. Thus, the re-cooling system can also be directly grown to save space laterally adjacent to housing or the like.

Um eine geringere Bautiefe einhalten zu können, kann es vorgesehen sein, dass der Lüfter ein Radiallüfter ist und dass die Pumpe eine Tauchpumpe ist, die in eine im Verhältnis zu seiner Bautiefe hohen Tank eintaucht.To be able to comply with a smaller depth, it can be provided that the fan is a radial fan and that the pump is a submersible pump, which dips into a high in relation to its depth tank.

Eine weitere Ausgestaltungsvariante der Erfindung ist dergestalt, dass der Kompressor des Kältekreislaufes in einem die beiden Teilräume überbrückenden Aufnahmebereich angeordnet und durch die Vorderseite des Aufnahmegehäuses hindurch zugänglich ist. Der Kompressor ist im Servicefall über die Gerätefrontseite zugänglich.A further embodiment variant of the invention is such that the compressor of the refrigeration cycle is arranged in a receiving region bridging the two subspaces and accessible through the front side of the receiving housing. The compressor is accessible on service via the front of the device.

Die Erfindung wird im folgenden anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

Fig. 1
eine Rückansicht auf eine Rückkühlanlage;
Fig. 2
die Rückkühlanlage gem. Fig. 1 in Ansicht von rechts;
Fig. 3
die Rückkühlanlage gem. Fig. 1 und 2 in Frontansicht und mit aufgesetzten Abdeckungen und
Fig. 4
die Darstellung gem. Fig. 3 in Ansicht von links.
The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:
Fig. 1
a rear view of a recooling system;
Fig. 2
the recooling system acc. Fig. 1 in view from the right;
Fig. 3
the recooling system acc. Fig. 1 and 2 in front view and with attached covers and
Fig. 4
the representation acc. Fig. 3 in view from the left.

In den Fig. 1 und 2 ist eine Rückkühlanlage dargestellt. Diese weist ein Aufnahmegehäuse 10 auf, das eine Rückwand 12 und eine dazu parallel angeordnete Frontwand 11 aufweist. Zwischen der Rückwand 12 und der Frontwand 11 erstrecken sich ein Boden 13, eine Deckwand 14 und Seitenwände 16.In the Fig. 1 and 2 is a recooling system shown. This has a receiving housing 10, which has a rear wall 12 and a front wall 11 arranged parallel thereto. Between the rear wall 12 and the front wall 11, a bottom 13, a top wall 14 and side walls 16 extend.

Parallel beabstandet zu der Rückwand 12 und der Frontwand 11 ist eine Trennwand 15 angeordnet. Diese teilt den von dem Aufnahmegehäuse 10 umgebenen Aufnahmeraum in zwei Teilräume.Parallel to the rear wall 12 and the front wall 11, a partition wall 15 is arranged. This divides the space surrounded by the receiving housing 10 receiving space into two subspaces.

In dem der Gerätevorderseite zugeordneten Teilraum ist ein Verflüssiger 32 und ein Lüfter 31 eines Kältekreislaufes untergebracht. Der Lüfter 31 ist als Radiallüfter ausgebildet. Er saugt über die geöffnete Frontwand 11 Luft entlang seiner Drehachse aus der Umgebung an und bläst diese radial aus. Die Luft wird dann durch den Verflüssiger 32 geführt und durch die geöffnete Frontwand 11 wieder erwärmt an die Umgebung abgegeben.In the front of the device associated subspace a condenser 32 and a fan 31 of a refrigeration cycle is housed. The fan 31 is designed as a radial fan. He sucks on the open front wall 11 air along its axis of rotation from the environment and blows them out radially. The air is then passed through the condenser 32 and returned through the open front wall 11 heated to the environment.

Ein Verdampfer 22 des Kältekreislaufes ist im zweiten rückseitigen Teilraum des Aufnahmegehäuses 10 angeordnet. Im Bereich des Bodens 13 des Aufnahmegehäuses 10 ist ein Kompressor 34 des Kältekreislaufes angeordnet. Dieser ist in einem die beiden Teilräume überbrückenden Verbindungsbereich angeordnet. Der Kompressor 34 ist dabei so angeordnet, dass seine Anschlußseite und elektrische Absicherung durch die Frontwand 11 hindurch zugänglich ist. Die einzelnen Baueinheiten des Kältekreislaufes sind mittels Kältemittelleitungen 33 miteinander verbunden. Im rückseitigen Teilraum sind Komponenten eines Wasserkreislaufes 20 untergebracht. Zu Wartungszwecken ist die Rückwand 12 geöffnet ausgeführt. Dieser rückseitige Teilraum nimmt einen Tank 24 auf, in den eine Pumpe 23 eingetaucht ist. Die Pumpe 23 ist als Eintauchpumpe ausgeführt. Der Tank 24 steht über eine Rücklaufleitung 25 in Verbindung mit dem Verdampfer 22. Die Rücklaufleitung 25 ist durch den Verdampfer 22 hindurchgeführt. Im Anschluß an den Verdampfer 22 führt die Rücklaufleitung 25 zu der Deckwand 14. Hier ist sie mit dem Anschluß 21 befestigt.An evaporator 22 of the refrigeration cycle is arranged in the second rear subspace of the receiving housing 10. In the region of the bottom 13 of the receiving housing 10, a compressor 34 of the refrigeration cycle is arranged. This is arranged in a connection area bridging the two subspaces. The compressor 34 is arranged so that its connection side and electrical protection through the front wall 11 is accessible through. The individual units of the refrigeration cycle are connected to each other by means of refrigerant lines 33. In the back subspace components of a water cycle 20 are housed. For maintenance purposes, the rear wall 12 is executed open. This rear compartment takes up a tank 24, in which a pump 23 is immersed. The pump 23 is designed as a submersible pump. The tank 24 is connected via a return line 25 in conjunction with the evaporator 22. The return line 25 is passed through the evaporator 22. Following the evaporator 22, the return line 25 leads to the top wall 14. Here it is attached to the terminal 21.

Die Vorlaufleitung 26 ist ebenfalls mit einem Anschluß 21 an der Deckwand 14 gehalten und führt zu der Pumpe 23.The supply line 26 is also held with a terminal 21 on the top wall 14 and leads to the pump 23rd

Wie die Fig. 3 und 4 erkennen lassen, ist die offene Frontwand 11 mittels Abdeckungen 41, 42 verschlossen. Dabei sind zwei obere und zwei untere Abdeckungen 41, 42 verwendet. Die beiden Abdeckungen 41 sowie 42 sind identisch, jedoch um 180° gedreht angebaut. Sie bilden Öffnungen, die mit angeformten Lamellengittern abgedecktsind. Die Lamellengitter weisen geneigte Lamellen auf, die als Leitelemente den Luftstrom in Richtung zur Deck- bzw. Bodenwand 14, 13 leiten. Somit ist ein Luft-Kurzschluß der ein- bzw. austretenden Luft verhindert. Die Abdeckungen 41, 42 und eine mittlere Abdekkung 43 lassen sich sich demontieren. Dann ist die Frontwand 11 freigegeben und durch deren Öffnungen können Wartungsarbeiten im vorderen Teilraum durchgeführt werden.As the 3 and 4 can be seen, the open front wall 11 is closed by covers 41, 42. In this case, two upper and two lower covers 41, 42 are used. The two covers 41 and 42 are identical, but grown rotated by 180 °. They form openings, which are covered with molded louvred grids. The lamellar gratings have inclined lamellae, which guide the air flow in the direction of the cover or bottom wall 14, 13 as guide elements. Thus, an air short circuit of the incoming and outgoing air is prevented. The covers 41, 42 and a middle Abdekkung 43 can be dismantled. Then the front wall 11 is released and through their openings maintenance work in the front compartment can be performed.

Die Rückkühlanlage ist an eine vertikale Wand mit der Rückwand 12 angebaut. Wenn Wartungen an den Komponenten des Wasserkreislaufes 22 durchgeführt werden sollen, muß lediglich das Aufnahmegehäuse 10 von der vertikalen Wand demontiert werden. Die offene Rückwand 12 erlaubt dann den Zugriff auf den rückseitigen Teilraum.The recooling system is mounted on a vertical wall with the rear wall 12. If maintenance is to be performed on the components of the water circuit 22, only the receiving housing 10 must be dismantled from the vertical wall. The open rear wall 12 then allows access to the back subspace.

Claims (9)

  1. Arrangement comprising a switchgear cabinet, a machine housing or the like and a recooling system having a refrigeration circuit and a water circuit (20), with the refrigeration circuit having an evaporator (22), condenser (32) and compressor (34) being accommodated in an accommodation housing (10), with the evaporator (22) being associated with the water circuit (20) so as to be in heat-exchanging contact, with a pump (23) being accommodated in the accommodation housing (10), and with the interior of the accommodation housing (10) being divided into two sub-areas by means of a partition wall (15), with the water circuit (20) having a tank (24) with which the pump (23) is associated, with the accommodation housing (10) being placed, by way of its open rear wall (12), against a vertical side cladding, for example of the switchgear cabinet, of the machine housing or of a wall and the accommodation housing (10) being attached to the said vertical side cladding, with one sub-area being arranged between the side cladding and the partition wall, and the second sub-area being arranged between the partition wall and the front face of the accommodation housing (10), with the condenser (32) and a ventilator being arranged in the sub-area which is associated with the front face of the accommodation housing, and the tank (24) and the pump (23) being arranged in the rear sub-area, and with the sub-areas each being accessible from the associated side of the accommodation housing (10), with the rear sub-area being accessible via the open rear wall (12) in the state in which it is detached from the side cladding.
  2. Arrangement according to Claim 1, characterized in that the evaporator (22) is accommodated in the rear sub-area of the accommodation housing (10).
  3. Arrangement according to Claim 2, characterized in that a return line (25) of the water circuit (20) is fed to the evaporator (22) and issues into the tank (24) in connection with the evaporator (22), in that a forward-feed line (26), which starts from the pump (23), emerges from the tank (24), in that the forward-feed line (26) and return line (25) are both guided toward the roof region of the accommodation housing (10) and project out of the said roof region at least by way of connections (21) for water circuit lines.
  4. Arrangement according to Claim 3, characterized in that the forward-feed line (26) and return line (25) are attached to the top wall (14) of the accommodation housing (10) by way of the connections (21).
  5. Arrangement according to one of Claims 1 to 4, characterized in that a device control electronics system (27) is accommodated in a lateral accommodation region of the accommodation housing (10) and is accessible via a separate service cover in the region of a side wall (16) of the accommodation housing (10).
  6. Arrangement according to one of Claims 1 to 5, characterized in that the front sub-area is connected to the surrounding area via at least one opening, in that the openings are arranged in the front wall (11) of the accommodation housing (10), with the fan (31) and the condenser (32) being associated with the surrounding area via the openings, and in that the openings are formed by covers or are covered by covers which deflect the air stream, which is supplied to the condenser (32) and the fan (31) through the openings, in a different direction by means of guide elements.
  7. Arrangement according to one of Claims 1 to 6, characterized in that the fan (31) is a radial fan.
  8. Arrangement according to one of Claims 1 to 7, characterized in that the pump (23) is an immersion pump which is immersed in the tank (24) which is high in relation to its installation depth.
  9. Arrangement according to one of Claims 1 to 8, characterized in that the compressor (34) of the refrigeration circuit is arranged in an accommodation region which bridges the two sub-areas and is accessible through the front face of the accommodation housing (10).
EP04708354A 2003-04-07 2004-02-05 Installation consisting in an electrical cabinet, a machine compartment or similar, and a cooling system Expired - Lifetime EP1613899B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316045A DE10316045B4 (en) 2003-04-07 2003-04-07 Cooling system
PCT/EP2004/001037 WO2004090430A1 (en) 2003-04-07 2004-02-05 Recirculation cooling system

Publications (2)

Publication Number Publication Date
EP1613899A1 EP1613899A1 (en) 2006-01-11
EP1613899B1 true EP1613899B1 (en) 2012-01-25

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Application Number Title Priority Date Filing Date
EP04708354A Expired - Lifetime EP1613899B1 (en) 2003-04-07 2004-02-05 Installation consisting in an electrical cabinet, a machine compartment or similar, and a cooling system

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US (1) US7437887B2 (en)
EP (1) EP1613899B1 (en)
JP (1) JP2006522302A (en)
CN (1) CN1764808B (en)
DE (1) DE10316045B4 (en)
WO (1) WO2004090430A1 (en)

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Also Published As

Publication number Publication date
WO2004090430A1 (en) 2004-10-21
DE10316045A1 (en) 2004-11-18
US7437887B2 (en) 2008-10-21
JP2006522302A (en) 2006-09-28
US20070000280A1 (en) 2007-01-04
CN1764808B (en) 2010-05-05
DE10316045B4 (en) 2008-11-27
CN1764808A (en) 2006-04-26
EP1613899A1 (en) 2006-01-11

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