CH346680A - Process for air conditioning of different rooms, each provided with an air treatment device, and system for carrying out this process - Google Patents

Process for air conditioning of different rooms, each provided with an air treatment device, and system for carrying out this process

Info

Publication number
CH346680A
CH346680A CH346680DA CH346680A CH 346680 A CH346680 A CH 346680A CH 346680D A CH346680D A CH 346680DA CH 346680 A CH346680 A CH 346680A
Authority
CH
Switzerland
Prior art keywords
air
outside air
cooling
heat exchanger
treatment devices
Prior art date
Application number
Other languages
German (de)
Inventor
Nilsson Karl
Allander Claes Ing Dr
Evert Lunden Bror
Original Assignee
Svenska Flaektfabriken Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svenska Flaektfabriken Ab filed Critical Svenska Flaektfabriken Ab
Publication of CH346680A publication Critical patent/CH346680A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1405Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/147Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00Refrigeration
    • Y10S62/21Evaporators where refrigerant covers heat exchange coil

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Solid Materials (AREA)
  • Central Air Conditioning (AREA)

Description

  

   <Desc/Clms Page number 1> 
 Verfahren zur Luftkonditionierung von verschiedenen, je mit einer    Luftbehandlungsvorrichtung   versehenen Räumen und Anlage zur    Durchführung   dieses Verfahrens Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Luftkonditionierung von verschiedenen, je mit einer    Luftbehandlungsvorrichtung      ver-      sehenen   Räumen, bei welchem Aussenluft an einer zentralen Stelle vorbehandelt und dann den genannten Behandlungsvorrichtungen zugeführt wird, in welchen diese Aussenluft nach Vermischung mit Luft aus dem jeweiligen Raum den Bedingungen in diesem angepasst wird, und eine Anlage zur Durchführung dieses Verfahrens. 



  Bei den bisher bekannten Verfahren wurde die eingeführte Aussenluft bis zur Sättigung gekühlt und hat    Taupunkttemperatur,   sie wurde dann durch ein Leitungssystem zu den verschiedenen Behandlungsvorrichtungen geführt. Die Temperatur dieser Luft war aber unter dem Taupunkt des zu beschickenden Raumes sowie unter dem Taupunkt der die Leitungen umgebenden Luft. Um    Tropfenbildung   zu vermeiden, war es daher nötig, doppelwandige, mit Isolation versehene Leitungen sowie Ablaufeinrichtungen für die verschiedenen Behandlungsvorrichtungen vorzusehen. Die Kosten solcher Anlagen und die ihrer    Wartung   wurden dadurch erheblich erhöht. 



  Dies lässt sich erfindungsgemäss dadurch beheben, dass die eingeführte feuchte Aussenluft derart gekühlt und getrocknet wird, dass ihr Taupunkt unter dem Taupunkt der Luft in den Räumen und unter dem Taupunkt der die Verteilungsleitungen umgebenden Luft liegt, dass diese Aussenluft dann bis annähernd Raumtemperatur vor ihrer    Verteilung   gewärmt wird, worauf sie in eine Anzahl    Behand-      Iungsvorrichtungen   gelangt, in welchen ihre Temperatur durch Wärmeaustausch auf den gewünschten Wert gebracht wird.

   Die erfindungsgemässe Anlage zur Durchführung dieses Verfahrens ist gekennzeichnet durch einen ersten    Wärmeaustauscher   zur Kühlung und Trocknung der eingeführten Aussenluft, einen zweiten    Wärmeaustauscher   zur Erwärmung der getrockneten Luft, Leitungen zur Verteilung der erwärmten Luft in eine Anzahl Behandlungsvorrichtungen, in welchen diese Luft mit aus dem zu beschickenden Raum kommender Luft vermischt wird, wobei jede dieser Behandlungsvorrichtungen mit einem eigenen    Wärmeaustauscher   zur Kühlung der genannten Luftmischung versehen ist. 



  In der beiliegenden Zeichnung ist ein Ausführungsbeispiel der erfindungsgemässen Anlage schematisch dargestellt, an Hand welchem das erfindungsgemässe Verfahren beispielsweise erläutert wird. 



  In der Zeichnung bezeichnet 1 den Kompressor einer beispielsweise    mit       Freon    (eingetragene Marke) arbeitenden Kältemaschine, 2 deren Kondensator und 3 und 4 die Verdampfer der Anlage. Die feuchte    Aussenluft   wird bei 5    eingeführt   und    im   Verdampfer 4 gekühlt und getrocknet. Sie wird dann über den Kondensator 2 und die Leitungen 6 zu den verschiedenen    Zimmereinzelbehandlungsvorrichtungen   7 geführt. Die Lufttemperatur wird in diesen Vorrichtungen 7 durch Wärmeaustausch, z. B. mit Wasser, den jeweiligen Zimmerbedingungen angepasst. Das Wasser zur Kühlung kann beispielsweise vom Verdampfer 3 oder aber von einer sonstigen Quelle bezogen werden. 



  Die bei 5 zugeführte Luft ist im Verdampfer 4 derart gekühlt und getrocknet, dass ihr Taupunkt unter dem Taupunkt der Luft in den zu beschickenden Zimmern und unter dem Taupunkt der die Leitungen 6 umgebenden Luft liegt. Im Kondensator 

 <Desc/Clms Page number 2> 

 2 wird die Luft wieder bis annähernd Raumtemperatur .erwärmt, damit keine    Kondenswasserbildung   mehr auf den Leitungen auftritt. Über die    Verteil-      leitungen   6 gelangt die Luft in die Vorrichtungen 7, in welchen diese Luft mit Luft aus den jeweiligen Zimmern vermischt    wird,   worauf die Mischung durch Wärmeaustausch in diesen Vorrichtungen mit dem in den Leitungen 8 zirkulierenden Medium auf die gewünschte Temperatur gekühlt wird. 



  Es ist nicht unbedingt nötig, eine Kühlmaschine für die Kühlung, Trocknung und Wiedererwärmung der Luft zu verwenden. Die Kühlung könnte mittels kalten Wassers und die Erhitzung mittels heissen Wassers durchgeführt werden.



   <Desc / Clms Page number 1>
 Method for air conditioning of different rooms each provided with an air treatment device and system for carrying out this method. The present invention relates to a method for air conditioning of different rooms each provided with an air treatment device, in which outside air is pretreated at a central point and then is fed to the treatment devices mentioned, in which this outside air, after mixing with air from the respective room, is adapted to the conditions in this, and a system for carrying out this process.



  In the previously known methods, the outside air introduced was cooled to saturation and has dew point temperature, it was then led through a pipe system to the various treatment devices. The temperature of this air was, however, below the dew point of the room to be charged and below the dew point of the air surrounding the pipes. In order to avoid the formation of drops, it was therefore necessary to provide double-walled lines with insulation as well as drainage devices for the various treatment devices. The costs of such systems and their maintenance were thereby increased considerably.



  According to the invention, this can be remedied by cooling and drying the introduced moist outside air in such a way that its dew point is below the dew point of the air in the rooms and below the dew point of the air surrounding the distribution lines, so that this outside air is then approximately up to room temperature before it is distributed is heated, whereupon it arrives in a number of treatment devices, in which its temperature is brought to the desired value by heat exchange.

   The system according to the invention for carrying out this process is characterized by a first heat exchanger for cooling and drying the outside air introduced, a second heat exchanger for heating the dried air, lines for distributing the heated air in a number of treatment devices in which this air is fed from the Room coming air is mixed, each of these treatment devices is provided with its own heat exchanger for cooling the air mixture mentioned.



  In the accompanying drawing, an embodiment of the system according to the invention is shown schematically, on the basis of which the method according to the invention is explained, for example.



  In the drawing, 1 denotes the compressor of a refrigerating machine working, for example, with Freon (registered trademark), 2 its condenser, and 3 and 4 the evaporators of the system. The moist outside air is introduced at 5 and cooled in the evaporator 4 and dried. It is then fed via the capacitor 2 and the lines 6 to the various individual room treatment devices 7. The air temperature is in these devices 7 by heat exchange, for. B. with water, adapted to the respective room conditions. The water for cooling can be obtained, for example, from the evaporator 3 or from another source.



  The air supplied at 5 is cooled and dried in the evaporator 4 in such a way that its dew point is below the dew point of the air in the rooms to be charged and below the dew point of the air surrounding the lines 6. In the condenser

 <Desc / Clms Page number 2>

 2 the air is warmed up again to almost room temperature so that no more condensation occurs on the lines. Via the distribution lines 6 the air reaches the devices 7, in which this air is mixed with air from the respective rooms, whereupon the mixture is cooled to the desired temperature by heat exchange in these devices with the medium circulating in the lines 8.



  It is not absolutely necessary to use a cooling machine for cooling, drying and reheating the air. The cooling could be carried out with cold water and the heating with hot water.

 

Claims (1)

PATENTANSPRÜCHE I. Verfahren zur Luftkonditionierung von verschiedenen, je mit einer Luftbehandlungsvorrichtung versehenen Räumen, bei welchem Aussenluft an einer zentralen Stelle vorbehandelt und dann den genannten Behandlungsvorrichtungen zugeführt wird, in welchen diese Aussenluft nach Vermischung mit Luft aus dem jeweiligen Raum den Bedingungen in diesem angepasst wird, dadurch gekennzeichnet, dass die eingeführte feuchte Aussenluft derart gekühlt und getrocknet wird, dass ihr Taupunkt unter dem Taupunkt der Luft in den Räumen und unter dem Tau- punkt der die Verteilungsleitungen umgebenden Luft liegt, dass diese Aussenluft dann bis annähernd Raumtemperatur vor ihrer Verteilung gewärmt wird, worauf sie in eine Anzahl Behandlungsvorrichtungen gelangt, PATENT CLAIMS I. A method for air conditioning different rooms, each provided with an air treatment device, in which outside air is pretreated at a central point and then fed to the said treatment devices, in which this outside air is adapted to the conditions in this after mixing with air from the respective room , characterized in that the introduced moist outside air is cooled and dried in such a way that its dew point is below the dew point of the air in the rooms and below the dew point of the air surrounding the distribution lines, that this outside air is then warmed to approximately room temperature before it is distributed whereupon it ends up in a number of treatment devices, in welchen ihre Temperatur durch Wärmeaustausch auf den gewünschten Wert gebracht wird. II. Anlage zur Durchführung des Verfahrens nach Patentanspruch I, gekennzeichnet durch einen ersten Wärmeaustauscher (4) zur Kühlung und Trocknung der eingeführten Aussenluft, einen zweiten Wärmeaustauscher (2) zur Erwärmung der getrockneten Luft, Leitungen (6) zur Verteilung der erwärmten Luft in eine Anzahl Behandlungsvorrichtungen (7), in welchen diese Luft mit aus dem zu beschickenden Raum kommender Luft vermischt wird, wobei jede dieser Behandlungsvorrichtungen mit einem eigenen Wärmeaustauscher zur Kühlung der genannten Luftmischung versehen ist. UNTERANSPRÜCHE 1. in which their temperature is brought to the desired value through heat exchange. II. Plant for performing the method according to claim I, characterized by a first heat exchanger (4) for cooling and drying the outside air introduced, a second heat exchanger (2) for heating the dried air, lines (6) for distributing the heated air into a Number of treatment devices (7) in which this air is mixed with air coming from the room to be charged, each of these treatment devices being provided with its own heat exchanger for cooling said air mixture. SUBCLAIMS 1. Verfahren nach Patentanspruch I, dadurch gekennzeichnet, dass zur zentralen Kühlung der Aussenluft eine Kühlmaschine verwendet wird. 2. Anlage nach Patentanspruch 1I, dadurch gekennzeichnet, dass der erste Wärmeaustauscher (4) aus einem Verdampfer und der zweite (2) aus einem Kondensator einer Kühlmaschine besteht. Method according to claim 1, characterized in that a cooling machine is used for central cooling of the outside air. 2. System according to claim 1I, characterized in that the first heat exchanger (4) consists of an evaporator and the second (2) consists of a condenser of a refrigerator.
CH346680D 1955-08-01 1956-07-31 Process for air conditioning of different rooms, each provided with an air treatment device, and system for carrying out this process CH346680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2975609X 1955-08-01

Publications (1)

Publication Number Publication Date
CH346680A true CH346680A (en) 1960-05-31

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ID=20428043

Family Applications (1)

Application Number Title Priority Date Filing Date
CH346680D CH346680A (en) 1955-08-01 1956-07-31 Process for air conditioning of different rooms, each provided with an air treatment device, and system for carrying out this process

Country Status (3)

Country Link
US (1) US2975609A (en)
CH (1) CH346680A (en)
FR (1) FR1155278A (en)

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Also Published As

Publication number Publication date
FR1155278A (en) 1958-04-24
US2975609A (en) 1961-03-21

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