EP1612490B1 - Room ventilation device for the climatisation of rooms - Google Patents

Room ventilation device for the climatisation of rooms Download PDF

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Publication number
EP1612490B1
EP1612490B1 EP05010321A EP05010321A EP1612490B1 EP 1612490 B1 EP1612490 B1 EP 1612490B1 EP 05010321 A EP05010321 A EP 05010321A EP 05010321 A EP05010321 A EP 05010321A EP 1612490 B1 EP1612490 B1 EP 1612490B1
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EP
European Patent Office
Prior art keywords
air
housing
ventilation device
conical
provision
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EP05010321A
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German (de)
French (fr)
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EP1612490A2 (en
EP1612490A3 (en
Inventor
Ulrich Bachmann
Jochen Schönfuss
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Schonfuss KG
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Schonfuss KG
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Publication of EP1612490A3 publication Critical patent/EP1612490A3/en
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    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers

Definitions

  • the invention relates to a room ventilation device for the provision of thermally pretreated and filtered room air from unconditioned ambient air for vertical and horizontal installation positions, which consists of filter elements, fan, heat exchangers and air guide elements and which are arranged in a common housing.
  • a room ventilation device for the provision of thermally pretreated and filtered room air from unconditioned ambient air for vertical and horizontal installation positions, which consists of filter elements, fan, heat exchangers and air guide elements and which are arranged in a common housing.
  • the clean air device described there for the pharmacy, food and biotechnology sector consists of at least one fan, which is followed by at least one Filterelelement and at least one heat exchanger upstream.
  • the heat exchanger is preferably a cooler.
  • the characteristic feature of this solution is that the required components are arranged in a common housing and this housing is designed as a built-in module.
  • the disadvantages of this proposal consist essentially in the conceived civil engineering solution.
  • the spatial separation of the individual device components lead to a housing geometry, which essentially requires the arrangement outside the residential or commercial premises to be supplied, for example on flat roofs or on the outer wall of buildings.
  • the necessary precautions are not provided.
  • the aim is to provide a compact device that ensures the necessary extent to the essential treatment steps for the transfer of normal ambient air in air-conditioned clean air.
  • the device to be developed should be easily integrated into ceilings or walls of residential or commercial premises.
  • a room ventilation device for the provision of thermally pretreated and filtered room air from unconditioned ambient air for vertical and horizontal mounting positions of filter elements, at least one fan, heat exchangers and air guide elements, which are arranged in a common housing.
  • the inlet channel of the fan is equipped with an airtight cover element.
  • the fan is disposed within a conical air guide housing.
  • heat exchanger surfaces are arranged, which are associated with means for the provision of heat or refrigerant means. Outside the connection of the heat exchanger surfaces on the cover element supply air openings for the access of unconditioned ambient air are arranged.
  • the conical air duct housing is equipped in the plane of the smallest diameter with a circumferential inner Kondensat operationsrinne. Between the conical air guide housing and the circumferential housing wall, an outer Kondensat operationsrinne is arranged. Finally, a fine filter is arranged in the flow direction downstream of the fan within the peripheral outer Kondensat operationsrinne in the conical air guide housing pressure side.
  • a trained room ventilation device now makes it possible to fulfill ventilation tasks for residential or commercial spaces in extremely compact form in that the available ambient air is optionally provided with multi-stage cleaning and thermally treated.
  • the structural design of the device allows both the horizontal installation in ceiling areas as well as the inclined and the vertical installation in wall areas. Regardless of the installation position accumulating condensate from the dehumidification of ambient air can be selectively dissipated without having to intervene in the uniform design of the room ventilation device.
  • a clear distance of at least 10 mm, preferably 80 mm, is arranged between the cover element and the inflow channel.
  • This distance refers to the free area between cover and smallest diameter of the conical air guide housing.
  • the cooled ambient air flows through the heat exchanger surfaces on the jacket of the frusto-conically shaped conical air guide housing. These surfaces are also used for condensate separation, wherein the air flow supports the conveyance of the resulting condensate to the inner Kondensatab Jardinrinne. The condensate running there is safely removed in this way the resumption of the cooled ambient air.
  • conical air guide housing guide elements are preferably arranged for the fan slot. This facilitates the dismantling and mounting of the fan in the replacement or maintenance case.
  • the heat exchanger surfaces are preferably performed circumferentially. This makes it possible to arrange relatively large-sized heat exchanger surfaces in a comparatively small space. This is due to both the possibility of a circumferential arrangement as well as the intended angled arrangement, relative to the axis of the conical air guide housing.
  • the heat exchanger surfaces can also be arranged parallel to the axis of the fan or to the axis of the conical air guide housing. This is preferably the case when the inlet openings for the ambient air can be arranged on the outer edge of the housing of the room ventilation device.
  • the heat exchanger surfaces With the same taper, the heat exchanger surfaces would be parallel to the conical air duct housing and more likely to allow air to flow through the heat exchanger surfaces that do not make sufficient contact with the conical air ducts prior to passage through the fan resulting in insufficient precipitates of condensate on the outer surface of the conical air duct Air duct housing would lead. Non-separated condensates could thus reach the downstream of the fan fine filter and cause malfunctions there.
  • coarse and / or fine filter elements are arranged on the supply air openings, on the one hand serve a pre-cleaning of the ambient air and on the other hand both protect the heat exchanger surfaces from accelerated contamination and extend the life of the downstream fine filter.
  • At least one condensate drain communicating with a suitable drainage system is arranged in the plane of the outer condensate guide trough.
  • the condensates deposited are safely removed from the system and re-humidification of the conditioned air is avoided.
  • the advantages of the invention are summarized in the now available room ventilation device for the air conditioning of residential areas and commercial premises that can be used as room design elements because of the compact and functional design. Compared to known technical solutions can be realized in a relatively small space as a result of the special arrangement of the individual structural components of the device high conditioning performance.
  • the proposed device can be used both with the use of outside air and for the preparation of the neighboring rooms extracted air. The device thus serves as a cost-producible and mountable system not only the room ventilation with conditioned air, but if necessary, at the same time the space heating or room cooling.
  • a room ventilation device is arranged in a housing 13 made of welded aluminum sheet. Opposite the inflow channel 12 for the fan 1, the housing 13 of the room ventilation device in the form of a cover 2 is made air-impermeable. Within the housing 13 are arranged elements made of canted aluminum sheet, which are equipped with diffusion-tight sound insulation, preferably in the form of plastic foam. Above the conical air duct housing 3, openings 3 are provided in the housing 13 outside the projection area of the smallest diameter of the conical air duct housing 3, to which air inlet openings 4 with inlet grilles 14 and integrated prefilters 5 are attached.
  • heat exchanger surfaces 6 are arranged so that the incoming air impinges in an angle of about 45 ° to these heat exchanger surfaces.
  • pocket filters 15, preferably pocket filters F7 to F9 are arranged between inlet grids 14 with prefilters 5 and heat exchanger surfaces 6.
  • the in the space between the housing 13 of the room ventilation device and the inner conical air guide housing 3 circumferentially arranged heat exchanger surfaces 6 are equipped with a smaller conicity than the taper of the frusto-conical outer shell of the conical air guide housing 3. In this way, the ambient air flowing through the prefilters 5 is a comparatively large heat exchanger surface 6 for the thermal treatment available.
  • heat exchanger surfaces 6 copper tube registers are used in aluminum fins.
  • the piping for the supply and removal of heat or refrigerant means to the heat exchanger surfaces 6 is disposed including the thermal insulation within the housing 13 of the room ventilation device.
  • the fan list positioned in guide elements 10 for the fan slot and has fasteners on the conical air guide housing 3.
  • the conical air guide housing 3 is closed in the plane of the largest diameter with a Feinfliter 9, which also forms the conclusion to open on this page housing 13 of the room ventilation device .
  • Room ventilation devices of the type proposed are used in clean rooms, in clean room areas and in areas with increased purity. They work with low-turbulence displacement flow and can be used in virtually any position. The use is preferably in ceiling or wall installation, in special cases also for purposes of workplace or workbench ventilation.
  • the function of the proposed room ventilation device is characterized in that the ambient air to be reprocessed is sucked in via the supply air openings 4 into the housing 13 of the room ventilation device.
  • the air is passed through the inclined heat exchanger surfaces 6, wherein the air is subjected to a thermal treatment. In the case of cooling, dew point temperatures are very likely to fall below.
  • the resulting condensates reach from the fins of the heat exchanger surfaces 6 predominantly on the outer surface of the conical air guide housing 3 and are detected there by the inner and increasingly from the outer Kondensat operationsrinne 7, 8. From there, the condensates reach the drain piping and are discharged from the room ventilation device via a condensate drain 11.
  • the eliminated moisture content of the ambient air lead to relative drying, so that the fine filter 9 downstream of the fan 1 is not detrimentally affected by moisture.
  • the remaining moisture in the cooled room air is thrown in front of the fine filter 9 by the fan 1 to the inside of the conical air guide housing 3 and also kept away from the fine filter 9 in this way.
  • the inner part of the device with inlet channel 12, fan 1, conical air guide housing 3, heat exchanger surfaces 6, drain system 7, 8, 11, insulation, filter elements 5 and 9 and all necessary fasteners is inserted into the housing 13 of the room ventilation device.
  • the housing 13 is closed after insertion with the housing cover.
  • the heat exchanger surfaces 6 can be operated as a direct evaporator or with cold water. In direct evaporation, the thermal energy is provided by a chiller. The heat exchanger surfaces 6 act as the evaporator of the system when desired cooling and the intended heating operation as a condenser.
  • the control of the device includes the complete fan control and the control of the cooling or heating circuit. The thermal controls are carried out in the supply air or room temperature.
  • the proposed room ventilation device can be dimensioned so that it can be adapted to a large extent to individual customer requirements. Because of the low height, the room ventilation device can be used as needed without problems for the false ceiling installation.

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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)
  • Central Air Conditioning (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The inflow duct (12) of the ventilator (1) is fitted with an air-impermeable cover element (2) and is mounted inside a conical air supply housing (3). Heat exchanging surfaces (6) are provided between the cover element and housing and connected with devices for producing the hot or cold carrier means. Air inlet openings (4) are provided on the cover element away from the connection of the heat exchangers and the conical housing has in the plane of the smallest diameter a co-rotating inner condensation channel (7). An outer condensation channel (8) is between the housing conical air guide housing and the surrounding casing (13) whilst a fine filter (9) is mounted inside the surrounding outer condensation guide channel in the conical housing after the ventilator on the pressure side in the flow direction.

Description

Die Erfindung betrifft eine Raumbelüftungseinrichtung für die Bereitstellung von thermisch vorbehandelter und gefilterter Raumluft aus unkonditionierter Umgebungsluft für vertikale und horizontale Einbaulagen, die aus Filterelementen, Ventilator, Wärmetauschern und Luftführungselementen besteht und welche in einem gemeinsamen Gehäuse angeordnet sind. Derartige technische Lösungen werden in der Raumklimatisierungstechnik benötigt.The invention relates to a room ventilation device for the provision of thermally pretreated and filtered room air from unconditioned ambient air for vertical and horizontal installation positions, which consists of filter elements, fan, heat exchangers and air guide elements and which are arranged in a common housing. Such technical solutions are needed in the room air conditioning technology.

Technische Lösung für die Klimatisierung und Bereitstellung von konditionierter Umgebungsluft, die als Rein- oder Reinstluft für Wohnräume und Gewerberäume benötigt wird, sind in verschiedenen Varianten bereits entwickelt worden.
So beschreibt die DE 333 18 64 A1 ein Verfahren zur Klimatisierung und Herstellung von Reinluft, vorzugsweise für Wohnräume oder gewerbliche Räume, mit dessen Hilfe Rohluft nach Passieren eines Grobtrockenfilters durch ein Chemisorptionsmassenpaket zur Abscheidung von saueren Bestandteilen der Rohluft geführt wird. Die derart aufbereitete Rohluft wird dann einem nachgeschalteten Filtersystem zur Trocknung und zur Einbindung von Restschadstoffen zugeführt. Die vorgereinigte Luft kann anschließend noch einer Katalysatorstufe zugeführt werden, um die dann chemisch und staubtechnisch gereinigte Luft einer Klimaanlage zur weiteren Behandlung zu übergeben. Die benötigten Komponenten für diese technische Lösung können bedarfsweise in einem gemeinsamen Gehäuse untergebracht sein, um die Einrichtung als Fertigmodul am Einsatzort einbauen zu können.
Die Nachteile dieser technischen Lösung bestehen im wesentlichen darin, dass sie für den Einsatz von auch stark verunreinigter Rohluft konzipiert ist und alle benötigten Komponenten enthält, um unabhängig vom Verunreinigungsgrad Reinluft von hoher Qualität bereitstellen zu können.Technical solution for the air conditioning and provision of conditioned ambient air, which is needed as pure or clean air for living spaces and commercial premises, have already been developed in various variants.
That's how it describes DE 333 18 64 A1 a method for air conditioning and production of clean air, preferably for living spaces or commercial spaces, with the help of raw air is passed after passing a coarse dry filter through a Chemisorptionsmassenpaket for the separation of acidic components of the raw air. The crude air thus treated is then fed to a downstream filter system for drying and for incorporation of residual pollutants. The pre-cleaned air can then be fed to a catalytic converter stage, in order then to transfer the air, which has been purified chemically and dust-wise, to an air-conditioning system for further treatment. The required components for this technical solution can, if necessary, be accommodated in a common housing in order to be able to install the device as a finished module at the place of use.
The disadvantages of this technical solution consist essentially in the fact that it is designed for the use of heavily contaminated raw air and contains all the components needed to provide regardless of the degree of contamination clean air of high quality can.

Die enthaltenen Chemisorptions- und Katalysatorkomponenten verteuern die technische Lösung unnötig für einfache Einsatzfälle. Durch die verhältnismäßig großen Abmessungen der Kompletteinrichtung werden beachtliche räumliche Anforderungen an den jeweiligen Einsatzort gestellt.The contained chemisorption and catalyst components make the technical solution unnecessarily expensive for simple applications. Due to the relatively large dimensions of the complete device considerable space requirements are placed on the respective site.

Eine weiterentwickelte technische Lösung für die Bereitstellung von gereinigter und klimatisierter Luft ist der DE 299 16 321 U1 zu entnehmen. Die dort beschriebene Reinstlufteinrichtung für den Pharmazie-, Lebensmittel- und Biotechnologiebereich besteht aus mindestens einem Ventilator, dem wenigstens ein Filterelelement nachgeschaltet und mindestens ein Wärmeübertrager vorgeschaltet ist. Der Wärmeübertrager ist dabei vorzugsweise ein Kühler. Das kennzeichnende Merkmal dieser Lösung besteht darin, dass die benötigten Komponenten in einem gemeinsamen Gehäuse angeordnet sind und dieses Gehäuse als Einbaumodul ausgebildet ist. Die Nachteile dieses Vorschlages bestehen im wesentlichen in der konzipierten bautechnischen Lösung. Die räumliche Trennung der einzelnen Vorrichtungskomponenten führen zu einer Gehäusegeometrie, die im wesentlichen die Anordnung außerhalb der zu versorgenden Wohn- oder Gewerberäume erfordert, beispielsweise auf Flachdächern oder an der Außerwand von Gebäuden. Hinzu kommt, dass im Falle der benötigten Zuführung oder Abführung von Feuchte aus der zu behandelnden Rohluft die dazu benötigten Vorkehrungen nicht vorgesehen sind.An advanced technical solution for the provision of purified and conditioned air is the DE 299 16 321 U1 refer to. The clean air device described there for the pharmacy, food and biotechnology sector consists of at least one fan, which is followed by at least one Filterelelement and at least one heat exchanger upstream. The heat exchanger is preferably a cooler. The characteristic feature of this solution is that the required components are arranged in a common housing and this housing is designed as a built-in module. The disadvantages of this proposal consist essentially in the conceived civil engineering solution. The spatial separation of the individual device components lead to a housing geometry, which essentially requires the arrangement outside the residential or commercial premises to be supplied, for example on flat roofs or on the outer wall of buildings. In addition, in the case of the required supply or discharge of moisture from the raw air to be treated, the necessary precautions are not provided.

Es ist deshalb Aufgabe der Erfindung, eine technische Lösung zu entwickeln, mit deren Hilfe die Mängel des bekannten Standes der Technik überwunden werden können. Das Ziel besteht im Bereitstellen einer kompakten Vorrichtung, die im erforderlichen Umfang die unerlässlichen Behandlungsschritte zur Überführung von normaler Umgebungsluft in klimatisierte Reinluft sichert. Außerdem soll die zu entwickelnde Vorrichtung unproblematisch in Decken oder Wänden von Wohn- oder Gewerberäumen integrierbar sein.It is therefore an object of the invention to develop a technical solution by means of which the deficiencies of the known state of the art can be overcome. The aim is to provide a compact device that ensures the necessary extent to the essential treatment steps for the transfer of normal ambient air in air-conditioned clean air. In addition, the device to be developed should be easily integrated into ceilings or walls of residential or commercial premises.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Die vorteilhaften Ausgestaltungen sind in den Unteransprüchen beschrieben.
Danach besteht eine Raumbelüftungseinrichtung für die Bereitstellung von thermisch vorbehandelter und gefilterter Raumluft aus unkonditionierter Umgebungsluft für vertikale und horizontale Einbaulagen aus Filterelementen, wenigstens einem Ventilator, Wärmetauschern und Luftführungselementen, die in einem gemeinsamen Gehäuse angeordnet sind. Der Einströmkanal des Ventilators ist mit einem luftundurchlässigen Abdeckelement ausgestattet. Hierbei ist der Ventilator innerhalb eines konischen Luftführungsgehäuses angeordnet. Zwischen dem Abdeckelement und dem konischen Luftführungsgehäuse sind Wärmetauscherflächen angeordnet, wobei diese mit Einrichtungen für die Bereitstellung von Wärme- oder Kälteträgermitteln in Verbindung stehen. Außerhalb des Anschlusses der Wärmetauscherflächen am Abdeckelement sind Zuluftöffnungen für den Zutritt von unkonditionierter Umgebungsluft angeordnet. Das konische Luftführungsgehäuse ist in der Ebene des kleinsten Durchmessers mit einer umlaufenden inneren Kondensatführungsrinne ausgestattet. Zwischen dem konischen Luftführungsgehäuse und der umlaufenden Gehäusewand ist eine äußere Kondensatführungsrinne angeordnet. Schließlich ist innerhalb der umlaufenden äußeren Kondensatführungsrinne im konischen Luftführungsgehäuse druckseitig in Strömungsrichtung nach dem Ventilator ein Feinfilter angeordnet.
Eine derart ausgebildete Raumbelüftungseinrichtung erlaubt es nun, in äußerst kompakter Form Belüftungsaufgaben für Wohn- oder gewerbliche Räume dadurch zu erfüllen, dass verfügbare Umgebungsluft gegebenenfalls mehrstufig gereinigt und thermisch behandelt bereitgestellt wird. Die konstruktive Ausgestaltung der Vorrichtung ermöglicht sowohl den horizontalen Einbau in Deckenbereichen als auch den geneigten und den vertikalen Einbau in Wandbereichen. Unabhängig von der Einbaulage kann anfallendes Kondensat aus der Entfeuchtung von Umgebungsluft gezielt abgeführt werden, ohne dazu in die einheitliche Gestaltung der Raumbelüftungseinrichtung eingreifen zu müssen.The object is achieved by the features of claim 1. The advantageous embodiments are described in the subclaims.
Thereafter, there is a room ventilation device for the provision of thermally pretreated and filtered room air from unconditioned ambient air for vertical and horizontal mounting positions of filter elements, at least one fan, heat exchangers and air guide elements, which are arranged in a common housing. The inlet channel of the fan is equipped with an airtight cover element. Here, the fan is disposed within a conical air guide housing. Between the cover and the conical air guide housing heat exchanger surfaces are arranged, which are associated with means for the provision of heat or refrigerant means. Outside the connection of the heat exchanger surfaces on the cover element supply air openings for the access of unconditioned ambient air are arranged. The conical air duct housing is equipped in the plane of the smallest diameter with a circumferential inner Kondensatführungsrinne. Between the conical air guide housing and the circumferential housing wall, an outer Kondensatführungsrinne is arranged. Finally, a fine filter is arranged in the flow direction downstream of the fan within the peripheral outer Kondensatführungsrinne in the conical air guide housing pressure side.
Such a trained room ventilation device now makes it possible to fulfill ventilation tasks for residential or commercial spaces in extremely compact form in that the available ambient air is optionally provided with multi-stage cleaning and thermally treated. The structural design of the device allows both the horizontal installation in ceiling areas as well as the inclined and the vertical installation in wall areas. Regardless of the installation position accumulating condensate from the dehumidification of ambient air can be selectively dissipated without having to intervene in the uniform design of the room ventilation device.

In einer bevorzugten Ausführungsvariante ist zwischen dem Abdeckelement und dem Einströmkanal ein lichter Abstand von wenigstens 10 mm, vorzugsweise von 80 mm, angeordnet.In a preferred embodiment, a clear distance of at least 10 mm, preferably 80 mm, is arranged between the cover element and the inflow channel.

Dieser Abstand bezieht sich auf die freie Fläche zwischen Abdeckelement und kleinstem Durchmesser des konischen Luftführungsgehäuses. Im Kühlfall strömt die gekühlte Umgebungsluft durch die Wärmetauscherflächen auf den Mantel des kegelstumpfförmig ausgebildeten konischen Luftführungsgehäuses. Dies Flächen dienen auch der Kondensatabscheidung, wobei der Luftstrom das Fördern des anfallenden Kondensates zur inneren Kondensatabführungsrinne unterstützt. Das dort ablaufende Kondensat wird auf diese Weise der Wiederaufnahme durch die gekühlte Umgebungsluft sicher entzogen.This distance refers to the free area between cover and smallest diameter of the conical air guide housing. In the cooling case, the cooled ambient air flows through the heat exchanger surfaces on the jacket of the frusto-conically shaped conical air guide housing. These surfaces are also used for condensate separation, wherein the air flow supports the conveyance of the resulting condensate to the inner Kondensatabführrinne. The condensate running there is safely removed in this way the resumption of the cooled ambient air.

Im konischen Luftführungsgehäuse sind bevorzugt Führungselemente für den Ventilatoreinschub angeordnet. Damit wird das Demontieren und Montieren des Ventilators im Austausch- oder Wartungsfall erleichtert.In conical air guide housing guide elements are preferably arranged for the fan slot. This facilitates the dismantling and mounting of the fan in the replacement or maintenance case.

Die Wärmetauscherflächen werden bevorzugt umlaufend ausgeführt. Dies erlaubt es, auf vergleichsweise kleinem Raum verhältnismäßig groß dimensionierte Wärmetauscherflächen anzuordnen. Dies ist sowohl der Möglichkeit einer umlaufenden Anordnung als auch der vorgesehenen winkligen Anordnung, bezogen auf die Achse des konischen Luftführungsgehäuses, geschuldet.The heat exchanger surfaces are preferably performed circumferentially. This makes it possible to arrange relatively large-sized heat exchanger surfaces in a comparatively small space. This is due to both the possibility of a circumferential arrangement as well as the intended angled arrangement, relative to the axis of the conical air guide housing.

In einer besonderen Ausführungsform können die Wärmetauscherflächen auch parallel zur Achse des Ventilators bzw. zur Achse des konischen Luftführungsgehäuses angeordnet sein. Das ist vorzugsweise dann der Fall, wenn die Zutrittsöffnungen für die Umgebungsluft am äußeren Rand des Gehäuses der Raumbelüftungseinrichtung angeordnet werden können.In a particular embodiment, the heat exchanger surfaces can also be arranged parallel to the axis of the fan or to the axis of the conical air guide housing. This is preferably the case when the inlet openings for the ambient air can be arranged on the outer edge of the housing of the room ventilation device.

Es hat sich als vorteilhaft erwiesen, die Wärmetauscherflächen mit einer geringeren Konizität als der Konizität des konischen Luftführungsgehäuses anzuordnen. Bei gleicher Konizität würden sich die Wärmetauscherflächen parallel um das konische Luftführungsgehäuse befinden und mit größerer Wahrscheinlichkeit Luftströmungen durch die Wärmetauscherflächen ermöglichen, die vor dem Durchtritt durch den Ventilator keinen ausreichenden Kontakt mit den konischen Luftführungsgehäuse erhalten, was zu unzureichenden Abscheidungen von Kondensaten an der Außenfläche des konischen Luftführungsgehäuses führen würde. Nicht abgeschiedene Kondensate könnten somit in den dem Ventilator nachgeordneten Feinfilter gelangen und dort Funktionsstörungen bewirken.It has proven to be advantageous to arrange the heat exchanger surfaces with a lower conicity than the taper of the conical air guide housing. With the same taper, the heat exchanger surfaces would be parallel to the conical air duct housing and more likely to allow air to flow through the heat exchanger surfaces that do not make sufficient contact with the conical air ducts prior to passage through the fan resulting in insufficient precipitates of condensate on the outer surface of the conical air duct Air duct housing would lead. Non-separated condensates could thus reach the downstream of the fan fine filter and cause malfunctions there.

In einer weiteren Ausführungsvariante sind an den Zuluftöffnungen Grob-und/oder Feinfilterelemente angeordnet, die einerseits einer Vorreinigung der Umgebungsluft dienen und andererseits sowohl die Wärmetauscherflächen vor beschleunigter Verschmutzung schützen als auch die Lebensdauer des nachgeschalteten Feinfilters verlängern.In a further embodiment coarse and / or fine filter elements are arranged on the supply air openings, on the one hand serve a pre-cleaning of the ambient air and on the other hand both protect the heat exchanger surfaces from accelerated contamination and extend the life of the downstream fine filter.

In der Ebene der äußeren Kondensatführungsrinne ist wenigstens ein mit einem geeigneten Ableitungssystem in Verbindung stehender Kondensatablauf angeordnet. Im Falle der Nutzung der Wärmetauscherflächen zum Zwecke der Luftkühlung werden die dabei abgeschiedenen Kondensate dem System sicher entzogen und eine Wiederbefeuchtung der konditionierten Luft vermieden.At least one condensate drain communicating with a suitable drainage system is arranged in the plane of the outer condensate guide trough. In the case of using the heat exchanger surfaces for the purpose of air cooling, the condensates deposited are safely removed from the system and re-humidification of the conditioned air is avoided.

Als vorteilhaft hat sich auch erwiesen, am größten Durchmesser des konischen Luftzuführungsgehäuses einen zylindrischen Rand mit einer Breite von wenigstens 10 mm, vorzugsweise jedoch von 50 mm, anzuordnen. Eine derartige Versteifung dient einerseits der Stabilität des konischen Luftführungsgehäuses und ermöglicht andererseits die Anordnung eines Ablaufventils für abgeschiedene Kondensate an beliebiger Stelle des Umfangs.It has also proved to be advantageous to arrange a cylindrical rim with a width of at least 10 mm, but preferably of 50 mm, at the largest diameter of the conical air feed housing. Such stiffening serves on the one hand the stability of the conical air duct housing and on the other hand allows the arrangement of a drain valve for separated condensates at any point of the circumference.

Die Vorteile der Erfindung bestehen zusammengefasst in der nun verfügbaren Raumbelüftungseinrichtung für die Klimatisierung von Wohnbereichen und Gewerberäumen, die sich wegen der kompakten und funktionsgerechten Ausführungsform auch als Raumgestaltungselemente nutzen lassen. Im Vergleich zu bekannten technischen Lösungen lassen sich in Folge der besonderen Anordnung der einzelnen baulichen Komponenten der Vorrichtung hohe Konditionierungsleistungen auf verhältnismäßig kleinem Raum realisieren. Zudem lässt sich die vorgeschlagene Vorrichtung sowohl unter Einsatz von Außenluft als auch für die Aufbereitung der Nachbarräume entnommenen Luft nutzen. Die Vorrichtung dient damit als kostengünstig herstellbares und montierbares System nicht nur der Raumbelüftung mit konditionierter Luft, sondern bedarfsweise zugleich der Raumheizung oder der Raumkühlung.The advantages of the invention are summarized in the now available room ventilation device for the air conditioning of residential areas and commercial premises that can be used as room design elements because of the compact and functional design. Compared to known technical solutions can be realized in a relatively small space as a result of the special arrangement of the individual structural components of the device high conditioning performance. In addition, the proposed device can be used both with the use of outside air and for the preparation of the neighboring rooms extracted air. The device thus serves as a cost-producible and mountable system not only the room ventilation with conditioned air, but if necessary, at the same time the space heating or room cooling.

Die Erfindung soll nachstehend mit einem Ausführungsbeispiel näher erläutert werden.
In der beigefügten Zeichnung zeigen:

Fig. 1
die schematische Schnittdarstellung einer Raumbelüftungsvorrichtung für den Einbau in beliebiger Lage.
The invention will be explained in more detail below with an exemplary embodiment.
In the attached drawing show:
Fig. 1
the schematic sectional view of a room ventilation device for installation in any position.

Ausführungsbeispiel:Embodiment:

Gemäß der Figur 1 ist eine Raumbelüftungsvorrichtung in einem Gehäuse 13 aus verschweißtem Aluminiumblech angeordnet. Gegenüber dem Einströmkanal 12 für den Ventilator 1 ist das Gehäuse 13 der Raumbelüftungsvorrichtung in Form eines Abdeckelementes 2 luftundurchlässig ausgeführt. Innerhalb des Gehäuses 13 sind Elemente aus gekantetem Aluminiumblech angeordnet, die mit diffusionsdichter Schalldämmung, vorzugsweise in Form von Kunststoffschaum, ausgestattet sind. Oberhalb des konischen Luftführungsgehäuses 3 sind außerhalb der Projektionsfläche des kleinsten Durchmessers des konischen Luftführungsgehäuses 3 Öffnungen im Gehäuse 13 vorgesehen, an denen Zuluftöffnungen 4 mit Einlassgitter 14 und integrierten Vorfiltern 5 befestigt sind. Im Abstand zu diesen Einlassgittern sind Wärmetauscherflächen 6 so angeordnet, dass die einströmende Luft in einem Winkle von ca. 45° auf diese Wärmetauscherflächen auftrifft. Bei Reinraumanwendung bzw. Pseudoreinraumanwendung werden zwischen den Einlassgittern 14 mit Vorfiltern 5 und den Wärmetauscherflächen 6 Taschenfilter 15, vorzugsweise Taschenfilter F7 bis F9, angeordnet. Die im Zwischenraum zwischen dem Gehäuse 13 der Raumbelüftungsvorrichtung und dem innenliegenden konischen Luftführungsgehäuse 3 umlaufend angeordneten Wärmetauscherflächen 6 sind mit einer geringeren Konizität als der Konizität des kegelstumpfförmigen Außenmantels des konischen Luftführungsgehäuses 3 ausgestattet. Auf diese Weise steht der durch die Vorfilter 5 einströmenden Umgebungsluft eine vergleichsweise große Wärmetauscherfläche 6 für die thermische Behandlung zur Verfügung. Als Wärmetauscherflächen 6 kommen Kupferrohrregister in Aluminiumlamellen zum Einsatz. Die Verrohrung für die Zu- und Abführung von Wärme- oder Kälteträgermitteln zu den Wärmetauscherflächen 6 wird inklusive der Wärmedämmung innerhalb des Gehäuses 13 der Raumbelüftungsvorrichtung angeordnet.According to the FIG. 1 a room ventilation device is arranged in a housing 13 made of welded aluminum sheet. Opposite the inflow channel 12 for the fan 1, the housing 13 of the room ventilation device in the form of a cover 2 is made air-impermeable. Within the housing 13 are arranged elements made of canted aluminum sheet, which are equipped with diffusion-tight sound insulation, preferably in the form of plastic foam. Above the conical air duct housing 3, openings 3 are provided in the housing 13 outside the projection area of the smallest diameter of the conical air duct housing 3, to which air inlet openings 4 with inlet grilles 14 and integrated prefilters 5 are attached. At a distance from these inlet grids heat exchanger surfaces 6 are arranged so that the incoming air impinges in an angle of about 45 ° to these heat exchanger surfaces. For cleanroom application or Pseudoregion space application, pocket filters 15, preferably pocket filters F7 to F9, are arranged between inlet grids 14 with prefilters 5 and heat exchanger surfaces 6. The in the space between the housing 13 of the room ventilation device and the inner conical air guide housing 3 circumferentially arranged heat exchanger surfaces 6 are equipped with a smaller conicity than the taper of the frusto-conical outer shell of the conical air guide housing 3. In this way, the ambient air flowing through the prefilters 5 is a comparatively large heat exchanger surface 6 for the thermal treatment available. As heat exchanger surfaces 6 copper tube registers are used in aluminum fins. The piping for the supply and removal of heat or refrigerant means to the heat exchanger surfaces 6 is disposed including the thermal insulation within the housing 13 of the room ventilation device.

Weiterhin ist an wählbarer Stelle des Umfangs die Möglichkeit des Kondensatablaufes 11 gegeben. Der Ventilator list in Führungselementen 10 für den Ventilatoreinschub positioniert und verfügt über Befestigungselemente am konischen Luftführungsgehäuse 3. Das konische Luftführungsgehäuse 3 wird in der Ebene des größten Durchmessers mit einem Feinfliter 9 verschlossen, der zugleich den Abschluss zum auf dieser Seite offenen Gehäuse 13 der Raumbelüftungsvorrichtung bildet. Raumbelüftungsvorrichtungen der vorgeschlagenen Art werden in Reinräumen, in Reinraumbereichen sowie in Bereichen mit erhöhter Reinheit eingesetzt. Sie arbeiten der turbulenzarmen Verdrängungsströmung und können praktisch in beliebiger Lage eingesetzt werden. Der Einsatz erfolgt vorzugsweise in Decken-oder Wandeinbau, in besonderen Fällen auch zu Zwecken der Arbeitsplatz- oder Werkbankbelüftung.
Die Funktion der vorgeschlagenen Raumbelüftungsvorrichtung ist dadurch gekennzeichnet, dass die aufzubereitende Umgebungsluft über die Zuluftöffnungen 4 in das Gehäuse 13 der Raumbelüftungsvorrichtung eingesaugt wird. Die Luft wird dabei durch die schräg stehenden Wärmetauscherflächen 6 geleitet, wobei die Luft dabei einer thermischen Behandlung unterzogen wird. Im Falle der Abkühlung werden mit hoher Wahrscheinlichkeit Taupunkttemperaturen unterschritten. Die anfallenden Kondensate gelangen von den Lamellen der Wärmetauscherflächen 6 überwiegend auf die Außenfläche des konischen Luftführungsgehäuses 3 und werden dort von der inneren und zunehmend auch von der äußeren Kondensatführungsrinne 7, 8 erfasst. Von dort gelangen die Kondensate zur Abflussverrohrung und werden darüber aus der Raumbelüftungsvorrichtung über einen Kondensatablauf 11 ausgeschleust. Die ausgeschleusten Feuchteanteile der Umgebungsluft führen zur relativen Trocknung, so dass der dem Ventilator 1 nachgeschaltete Feinfilter 9 nicht funktionsbeeinträchtigend mit Feuchte beaufschlagt wird. Dabei wird die in der gekühlten Raumluft verbleibende Feuchte vor dem Feinfilter 9 durch den Ventilator 1 an die Innenseite des konischen Luftführungsgehäuses 3 geschleudert und auf diese Weise ebenfalls vom Feinfilter 9 fern gehalten. Das Innenteil der Vorrichtung mit Einströmkanal 12, Ventilator 1, konischem Luftführungsgehäuse 3, Wärmetauscherflächen 6, Abflusssystem 7, 8, 11, Dämmung, Filterelementen 5 und 9 sowie allen erforderlichen Befestigungen ist in das Gehäuse 13 der Raumbelüftungsvorrichtung eingeschoben. Das Gehäuse 13 wird nach dem Einschub mit dem Gehäusedeckel verschlossen.Furthermore, the possibility of condensate discharge 11 is given at selectable point of the scope. The fan list positioned in guide elements 10 for the fan slot and has fasteners on the conical air guide housing 3. The conical air guide housing 3 is closed in the plane of the largest diameter with a Feinfliter 9, which also forms the conclusion to open on this page housing 13 of the room ventilation device , Room ventilation devices of the type proposed are used in clean rooms, in clean room areas and in areas with increased purity. They work with low-turbulence displacement flow and can be used in virtually any position. The use is preferably in ceiling or wall installation, in special cases also for purposes of workplace or workbench ventilation.
The function of the proposed room ventilation device is characterized in that the ambient air to be reprocessed is sucked in via the supply air openings 4 into the housing 13 of the room ventilation device. The air is passed through the inclined heat exchanger surfaces 6, wherein the air is subjected to a thermal treatment. In the case of cooling, dew point temperatures are very likely to fall below. The resulting condensates reach from the fins of the heat exchanger surfaces 6 predominantly on the outer surface of the conical air guide housing 3 and are detected there by the inner and increasingly from the outer Kondensatführungsrinne 7, 8. From there, the condensates reach the drain piping and are discharged from the room ventilation device via a condensate drain 11. The eliminated moisture content of the ambient air lead to relative drying, so that the fine filter 9 downstream of the fan 1 is not detrimentally affected by moisture. The remaining moisture in the cooled room air is thrown in front of the fine filter 9 by the fan 1 to the inside of the conical air guide housing 3 and also kept away from the fine filter 9 in this way. The inner part of the device with inlet channel 12, fan 1, conical air guide housing 3, heat exchanger surfaces 6, drain system 7, 8, 11, insulation, filter elements 5 and 9 and all necessary fasteners is inserted into the housing 13 of the room ventilation device. The housing 13 is closed after insertion with the housing cover.

Dies ermöglicht es, dass das Innenteil bei Reparaturen oder Wartungsarbeiten am Ventilator 1 oder den Wännetauscherflächen 6 bedarfsweise komplett entnommen werden kann. Die Wärmetauscherflächen 6 können als Direktverdampfer oder mit Kaltwasser betrieben werden. Bei der Direktverdampfung wird die thermische Energie durch eine Kältemaschine bereit gestellt. Die Wännetauscherflächen 6 fungieren bei gewünschter Abkühlung als Verdampfer des Systems und beim beabsichtigten Heizbetrieb als Verflüssiger. Die Steuerung der Vorrichtung beinhaltet die komplette Ventilatorregelung sowie die Regelung des Kühl- oder Heizkreislaufes. Die thermischen Regelungen erfolgen zuluft- oder raumtemperaturgeführt.
Die vorgeschlagene Raumbelüftungsvorrichtung kann so dimensioniert werden, dass sie im hohen Maße an individuelle Kundenwünsche angepasst werden kann. Wegen der geringen Bauhöhe kann die Raumbelüftungsvorrichtung bedarfsweise unproblematisch für den Zwischendeckeneinbau genutzt werden.This makes it possible for the inner part to be completely removed, if necessary, during repairs or maintenance work on the fan 1 or the heat exchanger surfaces 6. The heat exchanger surfaces 6 can be operated as a direct evaporator or with cold water. In direct evaporation, the thermal energy is provided by a chiller. The heat exchanger surfaces 6 act as the evaporator of the system when desired cooling and the intended heating operation as a condenser. The control of the device includes the complete fan control and the control of the cooling or heating circuit. The thermal controls are carried out in the supply air or room temperature.
The proposed room ventilation device can be dimensioned so that it can be adapted to a large extent to individual customer requirements. Because of the low height, the room ventilation device can be used as needed without problems for the false ceiling installation.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Ventilatorfan
22
Abdeckelementcover
33
Konisches LuftführungsgehäuseConical air duct housing
44
Zuluftöffnungensupply air
55
Vorfilterprefilter
66
Wärmetauscherflächenheat exchanger surfaces
77
Innere KondensatführungsrinneInner condensation duct
88th
Äußere KondensatführungsrinneExternal condensate guide channel
99
Feinfilterfine filter
1010
Führungselement für den VentilatoreinschubGuide element for the fan slot
1111
Kondensatablaufcondensate drain
1212
Einströmkanalinflow
1313
Gehäusecasing
1414
Einlassgitterintake grill
1515
Taschenfilterbag filters

Claims (9)

  1. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air for vertical and horizontal installation positions, consisting of filter elements, a fan, heat exchangers and air guide elements which are arranged in a common housing, an inflow duct (12) of the fan (1) being equipped with an air-impermeable cover element (2), characterized in that the fan (1) is arranged inside a conical air guide housing (3), in that heat exchanger surfaces (6) are arranged between the cover element (2) and the conical air guide housing (3), in that the heat exchanger surfaces (6) are connected to devices for the provision of heat or cold transfer media, in that supply-air orifices (4) for the ingress of non-conditioned ambient air are arranged outside the connection of the heat exchanger surfaces (6) to the cover element (2), in that the conical air guide housing (3) is equipped in the plane of smallest diameter with a continuous inner condensate guide channel (7), in that an outer condensate guide channel (8) is arranged between the conical air guide housing (3) and the peripheral housing (13), and in that a fine filter (9) is arranged on the delivery side, downstream of the fan (1) in the direction of flow, in the conical air guide housing (3) within the continuous outer condensate guide channel (8).
  2. Room ventilation device for the provision of thermally preheated and filtered room air from non-conditioned ambient air according to Claim 1, characterized in that a clear distance of at least 10 mm, preferably 80 mm, is arranged between the cover element (2) and the inflow duct (12).
  3. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 and 2, characterized in that guide elements (10) for pushing in the fan are arranged in the conical air guide housing (3).
  4. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 3, characterized in that the heat exchanger surfaces (6) are formed peripherally.
  5. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 4, characterized in that the heat exchanger surfaces (6) are arranged parallel to the axis of the fan (1).
  6. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 4, characterized in that the heat exchanger surfaces (6) are arranged with a smaller conicity than the conicity of the conical air guide housing (3).
  7. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 6, characterized in that the supply-air orifices (4) are closed at least by means of inlet grids (14) and by means of prefilters (5) in the form of coarse and/or fine filter elements.
  8. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 7, characterized in that at least one condensate run-off (11) connected to a discharge system is arranged in the plane of the outer condensate guide channel (8).
  9. Room ventilation device for the provision of thermally pretreated and filtered room air from non-conditioned ambient air according to one of Claims 1 to 8, characterized in that a cylindrical margin with a width of at least 10 mm, preferably 50 mm, is arranged at the largest diameter of the conical air guide housing (3).
EP05010321A 2004-06-28 2005-05-12 Room ventilation device for the climatisation of rooms Not-in-force EP1612490B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004031341 2004-06-28
DE102004036651 2004-07-28
DE102004038778A DE102004038778A1 (en) 2004-06-28 2004-08-09 Room ventilation device for the air conditioning of rooms

Publications (3)

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EP1612490A2 EP1612490A2 (en) 2006-01-04
EP1612490A3 EP1612490A3 (en) 2010-07-21
EP1612490B1 true EP1612490B1 (en) 2011-08-24

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AT (1) ATE521858T1 (en)
DE (1) DE102004038778A1 (en)

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Publication number Priority date Publication date Assignee Title
CN103759384B (en) * 2014-01-16 2016-06-15 清华大学 A kind of natural ventilator and indoor air quality monitoring method in real time
CN104390272B (en) * 2014-11-19 2017-05-03 珠海格力电器股份有限公司 Air conditioner

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Publication number Priority date Publication date Assignee Title
US2044832A (en) * 1934-06-26 1936-06-23 Aeriet Air Conditioner Company Air conditioner
DE3331864A1 (en) * 1983-09-03 1985-03-21 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Process to give air-conditioned clean air for, preferably, living rooms or commercially-used rooms
TW384374B (en) * 1996-10-03 2000-03-11 Toshiba Corp Indoor unit of air-conditioner
DE29916321U1 (en) * 1999-09-16 1999-12-23 M & W Zander Facility Eng Gmbh Pure air equipment for the pharmaceutical, food and biotechnical sectors

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ATE521858T1 (en) 2011-09-15
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