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EP1619449B1 - Ventilation apparatus for heating, cooling and/or ventilating a room - Google Patents

Ventilation apparatus for heating, cooling and/or ventilating a room Download PDF

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Publication number
EP1619449B1
EP1619449B1 EP20050014917 EP05014917A EP1619449B1 EP 1619449 B1 EP1619449 B1 EP 1619449B1 EP 20050014917 EP20050014917 EP 20050014917 EP 05014917 A EP05014917 A EP 05014917A EP 1619449 B1 EP1619449 B1 EP 1619449B1
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EP
European Patent Office
Prior art keywords
air
room
heat exchanger
primary
primary air
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20050014917
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German (de)
French (fr)
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EP1619449A1 (en
Inventor
Gerd Dr.-Ing. Schaal
Ralf Dipl.-Ing. Wagner
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LTG AG
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LTG AG
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Publication of EP1619449A1 publication Critical patent/EP1619449A1/en
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Classifications

    • 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
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/40—HVAC with raised floors

Definitions

  • the invention relates to an air-conditioning device for heating and / or cooling and / or ventilating a room.
  • the device can be designed as a centralized or decentralized device. Furthermore, training as a pure recirculation unit is possible. It is also possible to combine a central device with circulating air or a decentralized device with circulating air.
  • a ventilation system for the rooms of a building out which has a Zu Kunststoffweg with supply air fan and an exhaust path with exhaust fan. Furthermore, a heat exchanger is provided, the supply air from Zu Kunststoffventitator and demand-dependent room air can be fed via a circulating air. An air baffle connected upstream of the heat exchanger separates the air flows of room air and supply air in front of the heat exchanger.
  • a room air technical device out which has an induction device. Due to the induction effect, room air is sucked through a heat exchanger, mixed with primary air and blown into a room in a building.
  • a pure primary air operation is when the air conveyor is turned off and primary air is supplied, which passes through the induction device to the heat exchanger, passes through the heat exchanger and is blown out into the room.
  • the heat exchanger is operated with an appropriate coolant or heating means to cool or heat the air passing through it.
  • room air is conveyed through the room air inlet by induction effect to a corresponding extent, which passes the out of service air conveyor and passes to the heat exchanger. It also passes through the heat exchanger and is returned to the room again.
  • the ventilation system is supplied with no primary air.
  • the air conveyor is in action, ie, it promotes room air, in which it sucks this room air through the room air inlet and leads to the heat exchanger.
  • This room air passes through the heat exchanger, is thereby treated by temperature and returns to the room.
  • mixed operation also called hybrid operation, both the supply of primary air made, and operated the air conveyor. To the input side of the heat exchanger therefore reach the primary air and funded by the air conveyor room air. Both types of air pass through the heat exchanger and are by means of Zu Kunststoffauslasses the Room supplied. If the heat exchanger is not optionally operated with a cooling or heating means, there is no air conditioning of the room, but a ventilation. If this centrally processed primary air is used, which has been treated by ventilation technology, that is, heated, cooled and / or humidified or dehumidified, so you can still influence the room ventilation parameters of the room accordingly.
  • the air conveyor is designed as a fan.
  • the air flow rate can be set in a simple manner.
  • a cross-flow fan is used as the air conveying device.
  • a cross-flow fan guarantees a small design of the device and also allows quiet operation.
  • the induction device has a plurality of induction nozzles for blowing out the primary air.
  • the induction nozzles are preferably arranged like a matrix, which blow out into a mixing space.
  • the mixing chamber is located on the inlet side of the heat exchanger so that the injected air leaves the mixing chamber, passes through the heat exchanger and is treated thermally.
  • the room air enters through the room air inlet into the interior of the air conditioning device, passes through the air conveyor, which may be in operation or not in operation, and enters the mixing room.
  • There is a mixing of primary air and room air, ie, the induced room air interspersed (as well as the primary air) the heat exchanger and the mixed air thus formed is supplied as supply air through the Zu Kunststoffauslass the room.
  • the primary air can be supplied from a center of the building. This can be processed outside air. Additionally or alternatively, it is possible that the primary air is outside air, which is supplied by means of a primary air fan, in particular an outside air fan.
  • This primary air fan is preferably not in the housing of the air conditioning device, but is located outside of the device. For example, it is located in a facade channel of the building. However, it is also possible to accommodate him in an additional housing to the housing of the device of the room ventilation device or to integrate it in the housing of the air conditioning device.
  • a development of the invention provides that the primary air connection leads to an air distribution box.
  • the supplied primary air is introduced into the air distribution box and flows from there substantially uniformly distributed to the individual primary air nozzles.
  • the induction nozzle or the induction nozzles are located directly on the air distribution box.
  • One wall of the air distribution box is equipped with the induction nozzles.
  • the already mentioned mixing chamber for primary air and / or room air arranged upstream of the heat exchanger.
  • the mixing chamber is preferably below the heat exchanger.
  • the air conditioning device in the room and depending on the design of the air conditioning device results in an underfloor device, parapet or ceiling device.
  • the primary air comes, for example, from an air center, which supplies a variety of air conditioning equipment.
  • the air center is preferably located at a specific location of the building, there central air, especially outdoor air, prepare.
  • the outside air is filtered in particular and humidified or dehumidified if necessary.
  • it can also already be pretreated thermally, ie flow through corresponding heating or cooling units centrally.
  • the thus prepared primary air is supplied to the primary air connection of the respective central device.
  • the primary air treatment is decentralized, ie in the area of the individual device.
  • the installation can always, so both in a central device as well as a decentralized device, largely invisible, for example, in a raised floor of the room.
  • the primary air is supplied to the remote unit from the immediate vicinity. For example, outside air is sucked in the region of the facade of the room by means of an air conveyor and then passes to the primary air connection of the device.
  • "primary air” also includes outdoor air (treated or untreated).
  • the air conveyor path of the non-operating air conveyor must form a Heilpassierweg. This is preferably the normal Heilpassierweg that flows through the air when the air conveyor is in operation. If the air conveying device is, for example, a cross-flow fan which, as mentioned, is not in operation, then it can nevertheless be flowed through by the induced ambient air, without any disturbing pressure loss through the air conveying device.
  • the FIG. 1 shows a room air technical device 1, which is designed as an underfloor device 2.
  • the room ventilation device 1 is used for air conditioning a room, not shown, in the raised floor of the room ventilation device 1 is arranged in the region of the facade of the room.
  • a housing 3 of the device 1 is an air conveyor 4, which is designed as a fan 5, in particular cross-flow fan 6.
  • a heat exchanger 7 is arranged in the housing 3, which is operated by means of a heat medium or coolant flow, not shown. The temperature and / or the volumetric flow of the heat or coolant can be controlled or regulated.
  • Below the heat exchanger 7 is an air distribution box 8.
  • the air distribution box 8 is disposed within the housing 3. Between the air distribution box 8 and the heat exchanger 7, a mixing chamber 9 is formed.
  • the air distribution box 8 is equipped with induction nozzles 10 of an induction device 11, which point into the mixing chamber 9. Alternatively, openings may also be provided in the wall of the air distribution box 8 instead of the induction nozzles.
  • a primary air connection 12 communicates with the air distribution box 8 and allows primary air 13 to be introduced into the air distribution box 8.
  • a room air inlet 14 is located upstream of the crossflow fan 6. Downstream (area 15), the crossflow fan 6 communicates with the mixing space 9 to communicate with the air.
  • a Zuluftauslass 16 to blow incoming air from the heat exchanger 7 in the room as supply air 17.
  • the air conveying device 4 has an internal air conveying path 18 which forms an air passing path 19 when the air conveying device 4 is not in operation.
  • FIG. 1 In the FIG. 1 is the pure primary air operation of the room ventilation device 1 shown.
  • the primary air connection 12 is supplied by an air central primary air 13, not shown. This enters the interior of the air distribution box 8 and exits from there through the induction nozzles 10 in the mixing chamber 9.
  • an induction effect is achieved in the mixing space 9, which results in room air 20 entering the room air inlet 14, passing through the air passage 19 of the air conveyor 4 that is not in operation and flowing over the area 15 into the mixing space 9.
  • a mixture of the primary air 13 with the room air 20 In the mixing chamber 9, a mixture of the primary air 13 with the room air 20. This mixed air flows through the heat exchanger 7, wherein-depending on the type of operation of the heat exchanger-cooling or heating takes place.
  • the thus treated mixed air occurs as supply air 17 via the Zu Kunststoffauslass 16 in the room.
  • the primary air 13 only has to pass through the heat exchanger 7, which causes only a very small pressure loss.
  • the primary air has to flow through a plurality of assemblies lying in series with one another, there is therefore the advantage of only a very small pressure loss, which avoids in particular that part of the primary air does not travel through the heat exchanger 7 but through the cross-flow fan 6 takes.
  • the FIG. 2 illustrates the pure recirculation mode of the room air technical device 1.
  • the air distribution box 8 is no primary air 13 is supplied.
  • the cross-flow fan 6 is in operation, its speed or its air flow rate is controlled and / or regulated by means of suitable sensors and / or a suitable control or regulating device. He sucks on the room air inlet 14 room air 20 and transports them through the area 15 into the mixing chamber 9. From there, the conveyed air passes through the heat exchanger 7 and enters as a correspondingly thermally treated supply air 17 via the Zu Kunststoffauslass 16 in the room. There is thus a pure room air treatment, ie, there is a recirculation mode.
  • the FIG. 3 illustrates a mixed operation in which both a primary air operation and a recirculation mode is present.
  • This operation is called hybrid operation.
  • the air conveyor 4 is in operation; the air distribution box 8 primary air 13 is supplied.
  • the primary air 13 exits from the induction nozzles 10 and enters the mixing chamber 9.
  • the cross-flow fan 6 promotes room air 20 and thus loads the mixing chamber 9.
  • the promotion the air conveyor 4 is supported due to the induction effect of the induction device 11.
  • the now present in the mixing chamber 9, composed of room air 20 and primary air 13 mixed air passes through the heat exchanger 7 and enters as supply air 17 into the room.
  • the housing 3 of the air conditioning device 1 is formed substantially cuboid.
  • the housing 3 In the upper region of the housing 3 is located in the region of a side wall 21 of the heat exchanger 7. Below the heat exchanger 7 is the mixing chamber 9.
  • the cross-flow fan 6 is arranged with its impeller 22 adjacent to the heat exchanger 7, wherein the cross-flow fan 6 extends to one of the side wall 21 opposite side wall 23.
  • the air distribution box 8 is arranged below the mixing chamber 9 and also below the cross-flow fan 6 in the housing 3.
  • FIG. 5 indicates that the top wall 24 of the Lucasverteilkastens 8 is provided with a plurality of induction nozzles 10. This is in the FIG. 5 therefore recognizable because the heat exchanger 7 is not shown for clarity.
  • the cross section of the mixing chamber 9 is slightly wedge-shaped, since the ceiling wall 24 is arranged inclined within the cuboid housing 3. The inclination of the ceiling wall 24 is made such that the further it approaches the bottom of the housing 3, the greater the distance from the cross-flow fan 6.
  • the ceiling wall 24 is inclined with respect to its width and its length, with the result that any coming from the heat exchanger 7 moisture on the ceiling wall 24 drops off and this liquid can then flow due to the inclination to a flow, not shown.
  • the room ventilation device 1 can be operated for the purpose of dehumidification so that the heat exchanger 7 interspersed air is cooled by means of the heat exchanger 7 at least to the dew point, so that the humidity drops and drips on the ceiling wall 24, then by the inclination of the ceiling wall 24 to be able to run.
  • the ceiling wall 24 together with adjacent walls of the housing 3 forms a condensate tray of the dehumidifier.
  • the air-conditioning device 1 with an air humidifier 35.
  • the humidifying device 35 has a water mist supply line 36, which runs in a straight line and is covered by an apron 37 arranged laterally above the heat exchanger 7.
  • the water mist supply line 36 has mist outlet openings or mist outlet nozzles 38, which preferably point horizontally or obliquely upward in the direction of the side wall 21, so that water mist can escape in the directions mentioned. Escaping water mist is thus injected above the heat exchanger 7, so that the exiting from the heat exchanger 7 humidifies air and can enter as humidified supply air into the room.
  • the moistening device 35 has a water fog generating device 39, which is preferably designed as an ultrasonic moistening device. It sucks on an air line 40 on the pressure side of the cross-flow fan 6 to air, which is enriched within the water mist generator 39 with water droplets. Of the Water mist formed in this way is supplied to the water mist supply line 36 via a connecting line 41. During operation of the air humidifier 35, the supply air 17 leaving the heat exchanger 7 is moistened in the desired manner.
  • FIG. 6 indicates that the front side of the heat exchanger 7 and impeller 22 of the crossflow fan 6, a housing 3 passing through the outside air duct 25 is arranged, which may be provided with a closure device not shown and / or with sound attenuation elements.
  • a primary air fan 26 outside air 29 is sucked in the area of the facade 27 of the space to be ventilated by the outside air duct 26 and guided by means of an air duct connection 28, not shown to the primary air connection 12.
  • the outside air 29 is thus primary air 13.
  • the primary air fan 26 may be located in an additional housing, not shown, it may alternatively be integrated into the housing 3.
  • the outside air 29 passes via the primary air connection 12 into the air distribution box 8 and from there to the induction nozzles 10, as described above.
  • Room air 20 passes through the room air inlet 14 located above the impeller 22 of the crossflow fan 6 to the air conveyor 4 and from there via the area 15 to the mixing chamber 9.
  • the air passing through the heat exchanger 7, coming from the mixing chamber passes upwards over the above the heat exchanger 7 located Zu Kunststoffauslass 16 as supply air 17 in the room.
  • a facade fan coil which can be arranged in the double floor of a room of a building and, alternatively or additionally, permits recirculation operation, since the cross-flow fan is air-flow-technical is arranged in front of the heat exchanger, there is only a very low pressure drop, especially in the primary air operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)

Description

Die Erfindung betrifft eine lufttechnische Einrichtung zum Heizen und/oder Kühlen und/oder Belüften eines Raumes. Die Einrichtung kann als zentrale oder dezentrale Einrichtung ausbildet sein. Ferner ist eine Ausbildung als reines Umluftgerät möglich. Auch eine Kombination eines zentralen Geräts mit Umluft oder eines dezentralen Geräts mit Umluft ist möglich.The invention relates to an air-conditioning device for heating and / or cooling and / or ventilating a room. The device can be designed as a centralized or decentralized device. Furthermore, training as a pure recirculation unit is possible. It is also possible to combine a central device with circulating air or a decentralized device with circulating air.

Es sind raumlufttechnische Einrichtungen bekannt, die als zentrale oder als dezentrale Geräte ausgebildet sind. Das zentrale Gerät wird mit Primärluft versorgt, die zentral in einem Gebäude bereitgestellt und über Luftkanäle dem Gerät zugeleitet wird. Bei einem dezentralen Gerät fehlt eine Luftzentrale, vielmehr wird die Primärluft jedem einzelnen Gerät individuell, beispielsweise durch einen Außenluftventilator, zugeleitet. Die vorstehenden Ausführungen gelten ebenfalls für den Gegenstand der Erfindung.There are room ventilation devices known, which are designed as central or as decentralized devices. The central unit is supplied with primary air, which is provided centrally in a building and fed to the unit via air ducts. In a decentralized device is missing an air center, but the primary air is individually each device, for example, by an outside air fan, fed. The above statements also apply to the subject matter of the invention.

Aus der DE-A1-195 48 599 geht ein Lüftungssystem für die Räume eines Gebäudes hervor, das einen Zuluftweg mit Zuluftventilator und eine Abluftweg mit Abluftventilator aufweist. Ferner ist ein Wärmetauscher vorgesehen, dem Zuluft vom Zuluftventitator und bedarfsabhängig Raumluft über einen Umluftventitator zuführbar ist. Ein dem Wärmetauscher vorgeschaltetes Luftleitblech trennt die Luftströme von Raumluft und Zuluft vor dem Wärmetauscher.From the DE-A1-195 48 599 is a ventilation system for the rooms of a building out, which has a Zuluftweg with supply air fan and an exhaust path with exhaust fan. Furthermore, a heat exchanger is provided, the supply air from Zuluftventitator and demand-dependent room air can be fed via a circulating air. An air baffle connected upstream of the heat exchanger separates the air flows of room air and supply air in front of the heat exchanger.

Aus der DE-A-101 05 302 geht eine raumlufttechnische Einrichtung hervor, die eine Induktionseinrichtung aufweist. Durch die Induktionswirkung wird Raumluft durch einen Wärmetauscher gesaugt, mit Primärluft gemischt und in einen Raum eines Gebäudes eingeblasen.From the DE-A-101 05 302 is a room air technical device out, which has an induction device. Due to the induction effect, room air is sucked through a heat exchanger, mixed with primary air and blown into a room in a building.

Um gute raumlufttechnische Ergebnisse zu erzielen besteht die Aufgabe, einerseits eine flexible Betriebsführung und andererseits einer sehr jute Durchvorrichtung von Primärluft und Schumdärluft (Raumluft) vorzusehen.In order to achieve good ventilation results, the task on the one hand to provide a flexible operation management and on the other hand a very jute Durchvorrichtung of primary air and Schumdärluft (room air).

Diese Aufgabe sind durch eine raumlufttechnische Einrichtung gemäß Anspruch 1 gelöst.This object is achieved by a room ventilation device according to claim 1.

Vorteilhafte Weiterbildungen der Erfindung ergelen sich aus den Unteranspruchen 2 bis 15. Aufgrund dieser erfindungsgemäßen Konstruktion können auf einfache Weise drei unterschiedliche Betriebsarten realisiert werden. Ein reiner Primärluftbetrieb liegt vor, wenn die Luftfördereinrichtung ausgeschaltet ist und Primärluft zugeführt wird, die über die Induktionseinrichtung zum Wärmetauscher gelangt, den Wärmetauscher durchsetzt und in den Raum ausgeblasen wird. Der Wärmetauscher wird mit einem entsprechenden Kühlmittel oder auch Heizmittel betrieben, um die ihn durchsetzende Luft zu kühlen oder zu erwärmen. Aufgrund der Induktionseinrichtung wird über den Raumlufteinlass durch Induktionswirkung Raumluft in entsprechendem Umfang gefördert, die die außer Betrieb befindliche Luftfördereinrichtung passiert und zum Wärmetauscher gelangt. Sie durchsetzt ebenfalls den Wärmetauscher und wird wieder in den Raum zurückgeführt. Im reinen Umluftbetrieb wird der lufttechnischen Einrichtung keine Primärluft zugeführt. Vielmehr befindet sich die Luftfördereinrichtung in Aktion, d.h., sie fördert Raumluft, in dem sie diese Raumluft durch den Raumlufteinlass ansaugt und zum Wärmetauscher führt. Diese Raumluft durchsetzt den Wärmetauscher, wird dadurch temperaturbehandelt und gelangt in den Raum zurück. Schließlich wird im gemischten Betrieb, auch Hybridbetrieb genannt, sowohl die Zuführung von Primärluft vorgenommen, als auch die Luftfördereinrichtung betrieben. Zur Eingangsseite des Wärmetauschers gelangen daher die Primärluft und die von der Luftfördereinrichtung geförderte Raumluft. Beide Luftarten durchsetzen den Wärmetauscher und werden mittels des Zuluftauslasses dem Raum zugeführt. Wird der Wärmetauscher wahlweise nicht mit einem Kühl- oder Wärmemittel betrieben, so erfolgt keine Klimatisierung des Raumes, sondern eine Belüftung. Sofern dabei zentral aufbereitete Primärluft zum Einsatz gelangt, die lufttechnisch behandelt wurde, also erwärmt, gekühlt und/oder be- oder entfeuchtet wurde, so lassen sich dennoch die raumlufttechnischen Parameter des Raumes entsprechend zusätzlich beeinflussen.Advantageous developments of the invention will become apparent from the subclaims 2 to 15. Due to this construction according to the invention, three different operating modes can be realized in a simple manner. A pure primary air operation is when the air conveyor is turned off and primary air is supplied, which passes through the induction device to the heat exchanger, passes through the heat exchanger and is blown out into the room. The heat exchanger is operated with an appropriate coolant or heating means to cool or heat the air passing through it. Due to the induction device, room air is conveyed through the room air inlet by induction effect to a corresponding extent, which passes the out of service air conveyor and passes to the heat exchanger. It also passes through the heat exchanger and is returned to the room again. In pure recirculation mode, the ventilation system is supplied with no primary air. Rather, the air conveyor is in action, ie, it promotes room air, in which it sucks this room air through the room air inlet and leads to the heat exchanger. This room air passes through the heat exchanger, is thereby treated by temperature and returns to the room. Finally, in mixed operation, also called hybrid operation, both the supply of primary air made, and operated the air conveyor. To the input side of the heat exchanger therefore reach the primary air and funded by the air conveyor room air. Both types of air pass through the heat exchanger and are by means of Zuluftauslasses the Room supplied. If the heat exchanger is not optionally operated with a cooling or heating means, there is no air conditioning of the room, but a ventilation. If this centrally processed primary air is used, which has been treated by ventilation technology, that is, heated, cooled and / or humidified or dehumidified, so you can still influence the room ventilation parameters of the room accordingly.

Vorzugsweise ist die Luftfördereinrichtung als Ventilator ausgebildet. Über die vorzugsweise steuer- und/oder regelbare Ventilatordrehzahl kann die Luftfördermenge auf einfache Art und Weise festgelegt werden.Preferably, the air conveyor is designed as a fan. About the preferably controllable and / or controllable fan speed, the air flow rate can be set in a simple manner.

Insbesondere kommt als Luftfördereinrichtung ein Querstromventilator zum Einsatz. Ein Querstromventilator garantiert eine kleine Bauform des Geräts und ermöglicht ferner einen leisen Betrieb.In particular, a cross-flow fan is used as the air conveying device. A cross-flow fan guarantees a small design of the device and also allows quiet operation.

Die Erfindung sieht vor, dass die Induktionseinrichtung eine Vielzahl von Induktionsdüsen zum Ausblasen der Primärluft aufweist. Die Induktionsdüsen sind bevorzugt matrixartig angeordnet, die in einen Mischraum ausblasen. Der Mischraum liegt auf der Eingangsseite des Wärmetauschers, so dass die eingeblasene Luft den Mischraum verlässt, den Wärmetauscher durchsetzt und dabei wärmetechnisch behandelt wird. Gleichzeitig entsteht aufgrund der Induktionsdüsen im Mischraum eine Induktionswirkung, die zum Ansaugen von Raumluft führt. Die Raumluft tritt durch den Raumlufteinlass in das Innere der raumlufttechnische Einrichtung ein, durchsetzt die Luftfördereinrichtung, die sich in Betrieb oder nicht in Betrieb befinden kann, und gelangt in den Mischraum. Dort erfolgt ein Vermischen von Primärluft und Raumluft, d.h., auch die induzierte Raumluft durchsetzt (ebenso wie die Primärluft) den Wärmetauscher und die so gebildete Mischluft wird als Zuluft über den Zuluftauslass dem Raum zugeführt.The invention provides that the induction device has a plurality of induction nozzles for blowing out the primary air. The induction nozzles are preferably arranged like a matrix, which blow out into a mixing space. The mixing chamber is located on the inlet side of the heat exchanger so that the injected air leaves the mixing chamber, passes through the heat exchanger and is treated thermally. At the same time due to the induction nozzles in the mixing chamber creates an induction effect, which leads to the intake of air. The room air enters through the room air inlet into the interior of the air conditioning device, passes through the air conveyor, which may be in operation or not in operation, and enters the mixing room. There is a mixing of primary air and room air, ie, the induced room air interspersed (as well as the primary air) the heat exchanger and the mixed air thus formed is supplied as supply air through the Zuluftauslass the room.

Wie bereits vorstehend erläutert, kann die Primärluft von einer Zentrale des Gebäudes zugeführt werden. Hierbei kann es sich um aufbereitete Außenluft handeln. Zusätzlich oder alternativ ist es möglich, dass es sich bei der Primärluft um Außenluft handelt, die mittels eines Primärluftventilators, insbesondere Außenluftventilators, zugeführt wird. Dieser Primärluftventilator befindet sich vorzugsweise nicht im Gehäuse der raumlufttechnischen Einrichtung, sondern ist außerhalb des Geräts angeordnet. Beispielsweise befindet er sich in einem Fassadenkanal des Gebäudes. Es ist jedoch auch möglich, ihn in einem Zusatzgehäuse zum Gehäuse des Geräts der raumlufttechnischen Einrichtung unterzubringen oder ihn im Gehäuse der raumlufttechnischen Einrichtung zu integrieren.As already explained above, the primary air can be supplied from a center of the building. This can be processed outside air. Additionally or alternatively, it is possible that the primary air is outside air, which is supplied by means of a primary air fan, in particular an outside air fan. This primary air fan is preferably not in the housing of the air conditioning device, but is located outside of the device. For example, it is located in a facade channel of the building. However, it is also possible to accommodate him in an additional housing to the housing of the device of the room ventilation device or to integrate it in the housing of the air conditioning device.

Eine Weiterbildung der Erfindung sieht vor, dass der Primärluftanschluss zu einem Luftverteilkasten führt. Um eine Vielzahl von Induktionsdüsen möglichst gleichmäßig mit Primärluft zu beaufschlagen wird die zugeführte Primärluft in den Luftverteilkasten eingeleitet und strömt von dort aus im Wesentlichen gleichmäßig verteilt zu den einzelnen Primärluftdüsen. Insbesondere ist vorgesehen, dass sich die Induktionsdüse beziehungsweise die Induktionsdüsen direkt am Luftverteilkasten befinden. Eine Wand des Luftverteilkastens ist mit den Induktionsdüsen bestückt.A development of the invention provides that the primary air connection leads to an air distribution box. In order to apply a plurality of induction nozzles as uniformly as possible to primary air, the supplied primary air is introduced into the air distribution box and flows from there substantially uniformly distributed to the individual primary air nozzles. In particular, it is provided that the induction nozzle or the induction nozzles are located directly on the air distribution box. One wall of the air distribution box is equipped with the induction nozzles.

Erfindungsgemäß ist stromaufwärts vor dem Wärmetauscher der bereits erwähnte Mischraum für Primärluft und/oder Raumluft angeordnet. Der Mischraum liegt bevorzugt unterhalb des Wärmetauschers.According to the invention upstream of the heat exchanger, the already mentioned mixing chamber for primary air and / or room air arranged. The mixing chamber is preferably below the heat exchanger.

Je nach Aufstellungsort der raumlufttechnischen Einrichtung im Raum und je nach Ausbildung der raumlufttechnischen Einrichtung ergibt sich ein Unterflurgerät, Brüstungsgerät oder Deckengerät. Hierbei ist es jeweils möglich, entweder die Ausbildung als zentrales Gerät oder als dezentrales Gerät vorzunehmen. Wie bereits angedeutet, liegt ein zentrales Gerät vor, wenn es mit zentraler Primärluft versorgt wird, d.h., die Primärluft stammt beispielsweise aus einer Luftzentrale, die eine Vielzahl raumlufttechnischer Einrichtungen versorgt. Die Luftzentrale ist bevorzugt an einem bestimmten Ort des Gebäudes lokalisiert, um dort zentral Luft, insbesondere Außenluft, aufzubereiten. Die Außenluft wird insbesondere gefiltert und gegebenenfalls be- oder entfeuchtet. Sie kann insbesondere auch bereits wärmetechnisch vorbehandelt werden, also entsprechende Heiz- oder Kühlaggregate zentral durchströmen. Über ein Rohrverteilungsnetz (Luftkanäle) wird die so aufbereitete Primärluft dem Primärluftanschluss des jeweiligen zentralen Geräts zugeführt. Bei der Ausbildung als dezentrales Gerät liegt keine zentrale Primärluftaufbereitung vor. Die Primärluftaufbereitung erfolgt dezentral, also jeweils im Bereich des individuellen Gerätes. Dadurch ist insbesondere auch eine nachträgliche Aufstellung des dezentralen Gerätes in einem zu klimatisierenden oder zu belüftenden Raum möglich. Die Aufstellung kann stets, also sowohl bei einem Zentralgerät als auch bei einem Dezentralgerät, weitgehend unsichtbar erfolgen, beispielsweise in einem Doppelboden des Raumes. Die Primärluft wird dem dezentralen Gerät aus der unmittelbaren Nachbarschaft zugeführt. Beispielsweise wird mittels einer Luftfördereinrichtung Außenluft im Bereich der Fassade des Raumes angesaugt und gelangt dann zum Primärluftanschluss des Gerätes. Die vorstehenden Ausführungen zeigen, dass im Zuge dieser Anmeldung unter "Primärluft" unter anderem auch Außenluft (behandelt oder unbehandelt) verstanden wird.Depending on the location of the air conditioning device in the room and depending on the design of the air conditioning device results in an underfloor device, parapet or ceiling device. In this case, it is in each case possible to carry out either the training as a central device or as a decentralized device. As already indicated, there is a central device, if it is supplied with central primary air, ie, the primary air comes, for example, from an air center, which supplies a variety of air conditioning equipment. The air center is preferably located at a specific location of the building, there central air, especially outdoor air, prepare. The outside air is filtered in particular and humidified or dehumidified if necessary. In particular, it can also already be pretreated thermally, ie flow through corresponding heating or cooling units centrally. Via a pipe distribution network (air ducts) the thus prepared primary air is supplied to the primary air connection of the respective central device. When training as a decentralized device there is no central primary air treatment. The primary air treatment is decentralized, ie in the area of the individual device. As a result, in particular, a subsequent installation of the decentralized device in a room to be air-conditioned or ventilated is possible. The installation can always, so both in a central device as well as a decentralized device, largely invisible, for example, in a raised floor of the room. The primary air is supplied to the remote unit from the immediate vicinity. For example, outside air is sucked in the region of the facade of the room by means of an air conveyor and then passes to the primary air connection of the device. The above statements show that in the course of this application, "primary air" also includes outdoor air (treated or untreated).

Um sicherzustellen, dass die mittels der Induktionseinrichtung herbeigeführte Induktionswirkung zum Ansaugen von Raumluft führt, muss die Luftförderstrecke der nicht in Betrieb befindlichen Luftfördereinrichtung einen Luftpassierweg bilden. Hierbei handelt es sich bevorzugt um den normalen Luftpassierweg, den die Luft durchströmt, wenn sich die Luftfördereinrichtung in Betrieb befindet. Handelt es sich bei der Luftfördereinrichtung beispielsweise um einen Querstromventilator, der -wie erwähnt- nicht in Betrieb ist, so kann dieser dennoch von der induzierten Raumluft durchströmt werden, ohne dass ein störender Druckverlust durch die Luftfördereinrichtung besteht.To ensure that the induced by the induction device induction effect leads to the intake of room air, the air conveyor path of the non-operating air conveyor must form a Luftpassierweg. This is preferably the normal Luftpassierweg that flows through the air when the air conveyor is in operation. If the air conveying device is, for example, a cross-flow fan which, as mentioned, is not in operation, then it can nevertheless be flowed through by the induced ambient air, without any disturbing pressure loss through the air conveying device.

Die Zeichnungen veranschaulichen die Erfindung anhand eines Ausführungsbeispiels und zwar zeigt:

Figur 1
eine schematische Ansicht einer raumlufttechnischen Einrichtung zum Heizen, Kühlen und/oder Belüften eines Raumes im reinen Primärluftbetrieb,
Figur 2
die Einrichtung der Figur 1 im reinen Umluftbetrieb,
Figur 3
die Einrichtung der Figur 1 im gemischten Betrieb (Hybridbetrieb),
Figur 4
eine perspektivische Ansicht auf eine als Unterflurgerät ausgebildete lufttechnische Einrichtung in teilweise geöffnetem Zustand,
Figur 5
die Einrichtung der Figur 4 mit entnommenem Wärmetauscher und
Figur 6
eine perspektivische Ansicht der Einrichtung der Figur 4 aus einem anderen Blickwinkel.
The drawings illustrate the invention with reference to an embodiment and shows:
FIG. 1
a schematic view of a ventilation device for heating, cooling and / or ventilating a room in pure primary air operation,
FIG. 2
the establishment of FIG. 1 in pure recirculation mode,
FIG. 3
the establishment of FIG. 1 in mixed operation (hybrid operation),
FIG. 4
a perspective view of an underfloor device designed as a ventilation device in a partially open state,
FIG. 5
the establishment of FIG. 4 with removed heat exchanger and
FIG. 6
a perspective view of the device of FIG. 4 from a different angle.

Die Figur 1 zeigt eine raumlufttechnische Einrichtung 1, die als Unterflurgerät 2 ausgebildet ist. Die raumlufttechnische Einrichtung 1 dient dem Klimatisieren eines nicht näher dargestellten Raumes, in dessen Doppelboden die raumlufttechnische Einrichtung 1 im Bereich der Fassade des Raumes angeordnet ist. In einem Gehäuse 3 der Einrichtung 1 befindet sich eine Luftfördereinrichtung 4, die als Ventilator 5, insbesondere Querstromventilator 6, ausgebildet ist. Ferner ist im Gehäuse 3 ein Wärmetauscher 7 angeordnet, der mittels eines nicht dargestellten Wärmemittel- oder Kühlmittelstroms betrieben wird. Die Temperatur und/oder der Volumenstrom des Wärme- oder Kühlmittels ist steuerbar beziehungsweise regelbar. Unterhalb des Wärmetauschers 7 befindet sich ein Luftverteilkasten 8. Der Luftverteilkasten 8 ist innerhalb des Gehäuses 3 angeordnet. Zwischen dem Luftverteilkasten 8 und dem Wärmetauscher 7 ist ein Mischraum 9 ausgebildet. Der Luftverteilkasten 8 ist mit Induktionsdüsen 10 einer Induktionseinrichtung 11 ausgestattet, die in den Mischraum 9 weisen. Alternativ können anstelle der Induktionsdüsen auch Öffnungen in der Wand des Luftverteilkastens 8 vorgesehen sein. Ein Primärluftanschluss 12 steht mit dem Luftverteilkasten 8 in Verbindung und ermöglicht das Einleiten von Primärluft 13 in den Luftverteilkasten 8. Ein Raumlufteinlass 14 befindet sich stromaufwärts zum Querstromventilator 6. Stromabwärts (Bereich 15) steht der Querstromventilator 6 mit dem Mischraum 9 lufttechnisch kommunizierend in Verbindung. Oberhalb des Wärmetauschers 7 liegt ein Zuluftauslass 16, um vom Wärmetauscher 7 kommende Luft in den Raum als Zuluft 17 einzublasen. Die Luftfördereinrichtung 4 besitzt eine interne Luftförderstrecke 18, die bei nicht in Betrieb befindlicher Luftfördereinrichtung 4 einen Luftpassierweg 19 bildet.The FIG. 1 shows a room air technical device 1, which is designed as an underfloor device 2. The room ventilation device 1 is used for air conditioning a room, not shown, in the raised floor of the room ventilation device 1 is arranged in the region of the facade of the room. In a housing 3 of the device 1 is an air conveyor 4, which is designed as a fan 5, in particular cross-flow fan 6. Further, a heat exchanger 7 is arranged in the housing 3, which is operated by means of a heat medium or coolant flow, not shown. The temperature and / or the volumetric flow of the heat or coolant can be controlled or regulated. Below the heat exchanger 7 is an air distribution box 8. The air distribution box 8 is disposed within the housing 3. Between the air distribution box 8 and the heat exchanger 7, a mixing chamber 9 is formed. The air distribution box 8 is equipped with induction nozzles 10 of an induction device 11, which point into the mixing chamber 9. Alternatively, openings may also be provided in the wall of the air distribution box 8 instead of the induction nozzles. A primary air connection 12 communicates with the air distribution box 8 and allows primary air 13 to be introduced into the air distribution box 8. A room air inlet 14 is located upstream of the crossflow fan 6. Downstream (area 15), the crossflow fan 6 communicates with the mixing space 9 to communicate with the air. Above the heat exchanger 7 is a Zuluftauslass 16 to blow incoming air from the heat exchanger 7 in the room as supply air 17. The air conveying device 4 has an internal air conveying path 18 which forms an air passing path 19 when the air conveying device 4 is not in operation.

In der Figur 1 ist der reine Primärluftbetrieb der raumlufttechnischen Einrichtung 1 dargestellt. Dem Primärluftanschluss 12 wird -von einer nicht dargestellten Luftzentrale- Primärluft 13 zugeführt. Diese gelangt in das Innere des Luftverteilkastens 8 und tritt von dort durch die Induktionsdüsen 10 in den Mischraum 9 aus. Hierdurch wird im Mischraum 9 eine Induktionswirkung erzielt, die dazu führt, dass Raumluft 20 in den Raumlufteinlass 14 eintritt, den Luftpassierweg 19 der nicht in Betrieb befindlichen Luftfördereinrichtung 4 passiert und über den Bereich 15 in den Mischraum 9 strömt. Im Mischraum 9 erfolgt eine Mischung der Primärluft 13 mit der Raumluft 20. Diese Mischluft durchströmt den Wärmetauscher 7, wobei -je nach Betriebart des Wärmetauschers- ein Kühlen oder Erwärmen erfolgt. Die derart behandelte Mischluft tritt als Zuluft 17 über den Zuluftauslass 16 in den Raum ein. Im Primärluftbetrieb muss -wie die vorstehenden Ausführungen zeigen- die Primärluft 13 nur den Wärmetauscher 7 durchsetzen, der nur einen sehr geringen Druckverlust bewirkt. Gegenüber Anordnungen, bei denen die Primärluft mehrere, in Reihe zueinanderliegende Baugruppen durchströmen muss, liegt daher der Vorteil eines nur sehr geringen Druckverlustes vor, wodurch insbesondere vermieden wird, dass ein Teil der Primärluft nicht den Weg durch den Wärmetauscher 7, sondern durch den Querstromventilator 6 nimmt.In the FIG. 1 is the pure primary air operation of the room ventilation device 1 shown. The primary air connection 12 is supplied by an air central primary air 13, not shown. This enters the interior of the air distribution box 8 and exits from there through the induction nozzles 10 in the mixing chamber 9. As a result, an induction effect is achieved in the mixing space 9, which results in room air 20 entering the room air inlet 14, passing through the air passage 19 of the air conveyor 4 that is not in operation and flowing over the area 15 into the mixing space 9. In the mixing chamber 9, a mixture of the primary air 13 with the room air 20. This mixed air flows through the heat exchanger 7, wherein-depending on the type of operation of the heat exchanger-cooling or heating takes place. The thus treated mixed air occurs as supply air 17 via the Zuluftauslass 16 in the room. In the primary air mode, as shown above, the primary air 13 only has to pass through the heat exchanger 7, which causes only a very small pressure loss. Compared with arrangements in which the primary air has to flow through a plurality of assemblies lying in series with one another, there is therefore the advantage of only a very small pressure loss, which avoids in particular that part of the primary air does not travel through the heat exchanger 7 but through the cross-flow fan 6 takes.

Die Figur 2 verdeutlicht den reinen Umluftbetrieb der raumlufttechnischen Einrichtung 1. Dem Luftverteilkasten 8 wird keine Primärluft 13 zugeführt. Der Querstromventilator 6 befindet sich in Betrieb, seine Drehzahl beziehungsweise seine Luftfördermenge wird mittels geeigneter Sensoren und/oder einer geeigneten Steuerungs- oder Regelungseinrichtung gesteuert und/oder geregelt. Er saugt über den Raumlufteinlass 14 Raumluft 20 an und transportiert diese durch den Bereich 15 bis in den Mischraum 9. Von dort aus durchsetzt die geförderte Luft den Wärmetauscher 7 und tritt als entsprechend wärmetechnisch behandelte Zuluft 17 über den Zuluftauslass 16 in den Raum ein. Es erfolgt somit eine reine Raumluftbehandlung, d.h., es liegt ein Umluftbetrieb vor.The FIG. 2 illustrates the pure recirculation mode of the room air technical device 1. The air distribution box 8 is no primary air 13 is supplied. The cross-flow fan 6 is in operation, its speed or its air flow rate is controlled and / or regulated by means of suitable sensors and / or a suitable control or regulating device. He sucks on the room air inlet 14 room air 20 and transports them through the area 15 into the mixing chamber 9. From there, the conveyed air passes through the heat exchanger 7 and enters as a correspondingly thermally treated supply air 17 via the Zuluftauslass 16 in the room. There is thus a pure room air treatment, ie, there is a recirculation mode.

Die Figur 3 verdeutlicht einen gemischten Betrieb, bei dem sowohl ein Primärluftbetrieb als auch ein Umluftbetrieb vorliegt. Dieser Betrieb wird als Hybridbetrieb bezeichnet. Die Luftfördereinrichtung 4 befindet sich in Betrieb; dem Luftverteilkasten 8 wird Primärluft 13 zugeführt. Die Primärluft 13 tritt aus den Induktionsdüsen 10 aus und gelangt in den Mischraum 9. Der Querstromventilator 6 fördert Raumluft 20 und beschickt damit den Mischraum 9. Die Förderung der Luftfördereinrichtung 4 wird aufgrund der Induktionswirkung der Induktionseinrichtung 11 unterstützt. Die nunmehr im Mischraum 9 vorliegende, sich aus Raumluft 20 und Primärluft 13 zusammensetzende Mischluft durchsetzt den Wärmetauscher 7 und tritt als Zuluft 17 in den Raum ein.The FIG. 3 illustrates a mixed operation in which both a primary air operation and a recirculation mode is present. This operation is called hybrid operation. The air conveyor 4 is in operation; the air distribution box 8 primary air 13 is supplied. The primary air 13 exits from the induction nozzles 10 and enters the mixing chamber 9. The cross-flow fan 6 promotes room air 20 and thus loads the mixing chamber 9. The promotion the air conveyor 4 is supported due to the induction effect of the induction device 11. The now present in the mixing chamber 9, composed of room air 20 and primary air 13 mixed air passes through the heat exchanger 7 and enters as supply air 17 into the room.

Gemäß Figur 4 ist das Gehäuse 3 der raumlufttechnischen Einrichtung 1 im Wesentlichen quaderförmig ausgebildet. Im oberen Bereich des Gehäuses 3 befindet sich im Bereich einer Seitenwand 21 der Wärmetauscher 7. Unterhalb des Wärmetauschers 7 liegt der Mischraum 9. Aus Figur 4 ist ersichtlich, dass der Querstromventilator 6 mit seinem Laufrad 22 neben dem Wärmetauscher 7 angeordnet ist, wobei sich der Querstromventilator 6 bis an eine der Seitenwand 21 gegenüberliegende Seitenwand 23 erstreckt. Der Luftverteilkasten 8 ist unterhalb des Mischraums 9 und auch unterhalb des Querstromventilators 6 im Gehäuse 3 angeordnet.According to FIG. 4 the housing 3 of the air conditioning device 1 is formed substantially cuboid. In the upper region of the housing 3 is located in the region of a side wall 21 of the heat exchanger 7. Below the heat exchanger 7 is the mixing chamber 9. Off FIG. 4 it can be seen that the cross-flow fan 6 is arranged with its impeller 22 adjacent to the heat exchanger 7, wherein the cross-flow fan 6 extends to one of the side wall 21 opposite side wall 23. The air distribution box 8 is arranged below the mixing chamber 9 and also below the cross-flow fan 6 in the housing 3.

Die Figur 5 lässt erkennen, dass die Deckenwand 24 des Luftverteilkastens 8 mit einer Vielzahl von Induktionsdüsen 10 versehen ist. Dies ist in der Figur 5 deshalb erkennbar, weil der Wärmetauscher 7 zur Verdeutlichung nicht dargestellt ist. Der Querschnitt des Mischraums 9 ist leicht keilförmig gestaltet, da die Deckenwand 24 geneigt innerhalb des quaderförmigen Gehäuses 3 angeordnet ist. Die Neigung der Deckenwand 24 ist derart vorgenommen, dass sie sich umso weiter dem Boden des Gehäuses 3 nähert, je größer die Entfernung zum Querstromventilator 6 ist. Ferner kann -über die Länge gesehen- ebenfalls eine leichte Neigung der Deckenwand 24 vorgesehen sein, das heißt, die Deckenwand 24 ist bezüglich ihrer Breite und ihrer Länge geneigt angeordnet, mit der Folge, dass etwaige, vom Wärmetauscher 7 kommende Feuchtigkeit auf die Deckenwand 24 abtropft und diese Flüssigkeit aufgrund der Neigung dann bis zu einem nicht dargestellten Ablauf fließen kann. Die raumlufttechnische Einrichtung 1 kann zum Zwecke einer Luftentfeuchtung derart betrieben werden, dass die den Wärmetauscher 7 durchsetzte Luft mittels des Wärmetauschers 7 mindestens bis zum Taupunkt abgekühlt wird, so dass die Luftfeuchte ausfällt und auf die Deckenwand 24 tropft, um dann durch die Schrägstellung der Deckenwand 24 ablaufen zu können. Insofern bildet die Deckenwand 24 zusammen mit angrenzenden Wandungen des Gehäuses 3 eine Kondensatwanne des Luftentfeuchters.The FIG. 5 indicates that the top wall 24 of the Luftverteilkastens 8 is provided with a plurality of induction nozzles 10. This is in the FIG. 5 therefore recognizable because the heat exchanger 7 is not shown for clarity. The cross section of the mixing chamber 9 is slightly wedge-shaped, since the ceiling wall 24 is arranged inclined within the cuboid housing 3. The inclination of the ceiling wall 24 is made such that the further it approaches the bottom of the housing 3, the greater the distance from the cross-flow fan 6. Furthermore, seen over the length also a slight inclination of the ceiling wall 24 may be provided, that is, the ceiling wall 24 is inclined with respect to its width and its length, with the result that any coming from the heat exchanger 7 moisture on the ceiling wall 24 drops off and this liquid can then flow due to the inclination to a flow, not shown. The room ventilation device 1 can be operated for the purpose of dehumidification so that the heat exchanger 7 interspersed air is cooled by means of the heat exchanger 7 at least to the dew point, so that the humidity drops and drips on the ceiling wall 24, then by the inclination of the ceiling wall 24 to be able to run. In this respect, the ceiling wall 24 together with adjacent walls of the housing 3 forms a condensate tray of the dehumidifier.

Zusätzlich oder alternativ ist es möglich, die raumlufttechnische Einrichtung 1 mit einer Luftbefeuchtungseinrichtung 35 zu versehen. Hierzu wird insbesondere auf die Figuren 4 bis 6 verwiesen. Aus diesen Figuren ist erkennbar, dass die Luftbefeuchtungseinrichtung 35 eine Wassernebelzuführleitung 36 aufweist, die geradlinig verläuft und abgedeckt durch ein Schutzblech 37 seitlich oberhalb des Wärmetauschers 7 angeordnet ist. Die Wassernebelzuführleitung 36 weist Nebelaustrittsöffnungen oder Nebelaustrittsdüsen 38 auf, die in Richtung auf die Seitenwand 21 vorzugsweise waagerecht oder schräg nach oben weisen, so dass Wassernebel in den erwähnten Richtungen austreten kann. Austretender Wassernebel wird somit oberhalb des Wärmetauschers 7 eingedüst, so dass die aus dem Wärmetauscher 7 austretende Luft befeuchtet und als befeuchtete Zuluft in den Raum eintreten kann. Gemäß Figur 6 weist die Befeuchtungseinrichtung 35 eine Wassernebelerzeugungseinrichtung 39 auf, die vorzugsweise als Ultraschall-Befeuchtungseinrichtung ausgebildet ist. Sie saugt über eine Luftleitung 40 auf der Druckseite des Querstromventilators 6 Luft an, die innerhalb der Wassernebelerzeugereinrichtung 39 mit Wassertröpfchen angereichert wird. Der so gebildete Wassernebel wird über eine Verbindungsleitung 41 der Wassernebelzuführleitung 36 zugeführt. Im Betrieb der Luftbefeuchtungseinrichtung 35 wird die den Wärmetauscher 7 verlassende Zuluft 17 in gewünschter Weise befeuchtet.Additionally or alternatively, it is possible to provide the air-conditioning device 1 with an air humidifier 35. This is in particular on the FIGS. 4 to 6 directed. From these figures it can be seen that the humidifying device 35 has a water mist supply line 36, which runs in a straight line and is covered by an apron 37 arranged laterally above the heat exchanger 7. The water mist supply line 36 has mist outlet openings or mist outlet nozzles 38, which preferably point horizontally or obliquely upward in the direction of the side wall 21, so that water mist can escape in the directions mentioned. Escaping water mist is thus injected above the heat exchanger 7, so that the exiting from the heat exchanger 7 humidifies air and can enter as humidified supply air into the room. According to FIG. 6 the moistening device 35 has a water fog generating device 39, which is preferably designed as an ultrasonic moistening device. It sucks on an air line 40 on the pressure side of the cross-flow fan 6 to air, which is enriched within the water mist generator 39 with water droplets. Of the Water mist formed in this way is supplied to the water mist supply line 36 via a connecting line 41. During operation of the air humidifier 35, the supply air 17 leaving the heat exchanger 7 is moistened in the desired manner.

Die Figur 6 lässt erkennen, dass stirnseitig von Wärmetauscher 7 und Laufrad 22 des Querstromventilators 6 ein das Gehäuse 3 durchsetzender Außenluftkanal 25 angeordnet ist, der mit einer nicht näher dargestellten Verschlusseinrichtung und/oder mit Schalldämpfungselementen versehen sein kann. Mittels eines Primärluftventilators 26 wird Außenluft 29 im Bereich der Fassade 27 des zu belüftenden Raumes durch den Außenluftkanal 26 angesaugt und mittels einer nicht näher dargestellten Luftkanalverbindung 28 zum Primärluftanschluss 12 geführt. Bei der Außenluft 29 handelt es sich somit um Primärluft 13. Der Primärluftventilator 26 kann sich in einem nicht dargestellten Zusatzgehäuse befinden, er kann alternativ auch in das Gehäuse 3 integriert sein. Die Außenluft 29 gelangt über den Primärluftanschluss 12 in den Luftverteilkasten 8 und von dort zu den Induktionsdüsen 10, wie vorstehend beschrieben. Raumluft 20 gelangt über den sich oberhalb des Laufrads 22 des Querstromventilators 6 befindlichen Raumlufteinlass 14 zur Luftfördereinrichtung 4 und von dort über den Bereich 15 zum Mischraum 9. Die den Wärmetauscher 7 passierende, vom Mischraum kommende Luft tritt nach oben hin über den sich oberhalb des Wärmetauschers 7 befindlichem Zuluftauslass 16 als Zuluft 17 in den Raum ein.The FIG. 6 indicates that the front side of the heat exchanger 7 and impeller 22 of the crossflow fan 6, a housing 3 passing through the outside air duct 25 is arranged, which may be provided with a closure device not shown and / or with sound attenuation elements. By means of a primary air fan 26 outside air 29 is sucked in the area of the facade 27 of the space to be ventilated by the outside air duct 26 and guided by means of an air duct connection 28, not shown to the primary air connection 12. The outside air 29 is thus primary air 13. The primary air fan 26 may be located in an additional housing, not shown, it may alternatively be integrated into the housing 3. The outside air 29 passes via the primary air connection 12 into the air distribution box 8 and from there to the induction nozzles 10, as described above. Room air 20 passes through the room air inlet 14 located above the impeller 22 of the crossflow fan 6 to the air conveyor 4 and from there via the area 15 to the mixing chamber 9. The air passing through the heat exchanger 7, coming from the mixing chamber passes upwards over the above the heat exchanger 7 located Zuluftauslass 16 as supply air 17 in the room.

Erfindungsgemäß ist insbesondere ein Fassadenventilatorkonvektor geschaffen, der im Doppelboden eines Raumes eines Gebäudes angeordnet werden kann und alternativ oder zusätzlich einen Umluftbetrieb ermöglicht, da der Querstromventilator luftströmungstechnisch vor dem Wärmetauscher angeordnet ist, ergibt sich nur ein sehr geringer Druckverlust, insbesondere im Primärluftbetrieb.According to the invention, in particular, a facade fan coil is provided which can be arranged in the double floor of a room of a building and, alternatively or additionally, permits recirculation operation, since the cross-flow fan is air-flow-technical is arranged in front of the heat exchanger, there is only a very low pressure drop, especially in the primary air operation.

Claims (15)

  1. An air conditioning apparatus (1) for heating, cooling and/or ventilating a room, comprising a primary air connection (12) for primary air (13) that is supplied optionally, a room air inlet (14) and a supply air outlet (16), and comprising a heat exchanger (7) to which room air (20) can be supplied from the room air inlet (14) via an air delivery apparatus (4) that can be optionally put into operation and/or to which the primary air (13) can be supplied from the primary air connection (12) via an induction apparatus (11) that is provided with a plurality of induction nozzles or openings blowing out into a mixing chamber (9), wherein said air delivery apparatus (4) has an air delivery section (18) which forms an air passing path (19) while the air delivery apparatus (4) is not in operation, and wherein the induction apparatus (11) delivers room air via the room air inlet (14) in an appropriate volume and through the effect of induction, said room air passing the air passing path (19) and reaching the mixing chamber (9), and wherein the heat exchanger (7) is arranged downstream of the air delivery apparatus (4) which is connected downstream of the room air inlet (14), the induction apparatus (11) is disposed downstream of the primary air connection (12) and upstream of the heat exchanger (7), the mixing chamber (9) for the primary air (13) and the room air (20) is disposed upstream of the heat exchanger (7), wherein the mixed air thus formed flows through the heat exchanger (7), and the supply air outlet (16) is arranged downstream of the heat exchanger (7).
  2. The apparatus according to claim 1, characterized in that the air delivery apparatus (4) is a ventilator (5).
  3. The apparatus according to any one of the preceding claims, characterized in that the air delivery apparatus (4) is a cross flow ventilator (6).
  4. The apparatus according to any one of the preceding claims, characterized in that the primary air (13) is air supplied from a central station.
  5. The apparatus according to any one of the preceding claims, characterized in that the primary air (13) is external air (29).
  6. The apparatus according to any one of the preceding claims, characterized in that the primary air (13) is supplied by means of a primary air ventilator (26), more particularly an external air ventilator.
  7. The apparatus according to any one of the preceding claims, characterized in that the primary air connection (12) goes to an air distribution box (8).
  8. The apparatus according to claim 7, characterized in that the induction nozzles (10) or openings emanate from the air distribution box (8).
  9. The apparatus according to any one of the preceding claims, characterized in that the mixing chamber (9) is disposed below the heat exchanger (7).
  10. The apparatus according to any one of the preceding claims, characterized in that it is configured as a centralized device.
  11. The apparatus according to any one of the preceding claims, characterized in that it is configured as a decentralized device.
  12. The apparatus according to any one of the preceding claims, characterized in that it is configured as an underfloor device.
  13. The apparatus according to any one of the preceding claims, characterized in that it is configured as a parapet-mounted device.
  14. The apparatus according to any one of the preceding claims, characterized in that it is configured as a ceiling-mounted device.
  15. The apparatus according to any one or a plurality of the preceding claims, characterized by an air dehumidification and/or air humidification apparatus.
EP20050014917 2004-07-22 2005-07-09 Ventilation apparatus for heating, cooling and/or ventilating a room Active EP1619449B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410036886 DE102004036886A1 (en) 2004-07-22 2004-07-22 Air conditioning device and method for heating, cooling and / or ventilating a room

Publications (2)

Publication Number Publication Date
EP1619449A1 EP1619449A1 (en) 2006-01-25
EP1619449B1 true EP1619449B1 (en) 2013-04-10

Family

ID=35079148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050014917 Active EP1619449B1 (en) 2004-07-22 2005-07-09 Ventilation apparatus for heating, cooling and/or ventilating a room

Country Status (2)

Country Link
EP (1) EP1619449B1 (en)
DE (1) DE102004036886A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2051017B1 (en) * 2007-10-16 2021-11-10 Kampmann GmbH & Co. KG Device for air conditioning rooms
DE102008007641B4 (en) * 2008-02-04 2022-08-11 Pluggit Gmbh Ventilation unit
DE102009008551A1 (en) * 2009-02-12 2010-08-19 Kampmann Gmbh Underfloor air conditioner
FR3020127B1 (en) * 2014-04-17 2019-05-17 France Air SOIL CONVECTOR AND VENTILATION INSTALLATION COMPRISING SUCH A SOIL CONVECTOR

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548599C2 (en) * 1995-12-23 1998-07-02 Fsl Fenster System Lueftung Ventilation system for rooms in buildings
DE10023501C2 (en) * 2000-05-13 2002-10-17 Ltg Ag Method and device for air conditioning a room
DE10164733A1 (en) * 2001-02-02 2002-12-19 Ltg Ag Ventilation equipment
DE10122488A1 (en) * 2001-05-09 2002-12-05 Fassadensystemlueftung Gmbh & Ventilation system for rooms in buildings has fan drawing in outside air and mixing it with recirculating air through heat exchanger with control by flap valve

Also Published As

Publication number Publication date
EP1619449A1 (en) 2006-01-25
DE102004036886A1 (en) 2006-02-16

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