EP0414638B1 - Ventilating installation - Google Patents

Ventilating installation Download PDF

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Publication number
EP0414638B1
EP0414638B1 EP90810611A EP90810611A EP0414638B1 EP 0414638 B1 EP0414638 B1 EP 0414638B1 EP 90810611 A EP90810611 A EP 90810611A EP 90810611 A EP90810611 A EP 90810611A EP 0414638 B1 EP0414638 B1 EP 0414638B1
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EP
European Patent Office
Prior art keywords
ventilation
central
installation according
control
ventilation installation
Prior art date
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.)
Expired - Lifetime
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EP90810611A
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German (de)
French (fr)
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EP0414638A1 (en
Inventor
Thomas Dipl.-Ing. Eth Huonder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zurecon AG
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Zurecon AG
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Publication date
Priority claimed from CH309089A external-priority patent/CH678888A5/en
Priority claimed from CH216490A external-priority patent/CH682106A5/en
Application filed by Zurecon AG filed Critical Zurecon AG
Publication of EP0414638A1 publication Critical patent/EP0414638A1/en
Application granted granted Critical
Publication of EP0414638B1 publication Critical patent/EP0414638B1/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
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the invention relates to a ventilation system with a plurality of ventilation points arranged in a building.
  • a ventilation device for apartments which has a housing with a plurality of connecting pieces which can be controlled by means of throttle valves and a blower;
  • a common control device is provided for the blower and the actuators of the throttle valves. It is a single device for a limited number of connections, the arrangement of the individual throttle bodies on a housing being disclosed.
  • the document does not provide any information for the construction of extensive systems and their appropriate control.
  • the invention is intended to propose a novel construction of such ventilation systems in which the aforementioned disadvantages are eliminated.
  • a standardized, simple and cost-effective overall structure of such systems is sought, the maintenance of which is decisively simplified and which also offer the possibility of simple and efficient overall control. - This object is achieved by the features specified in claim 1.
  • ventilation is to be understood as either a) only the ventilation, b) both ventilation and ventilation, or c) only regarding ventilation.
  • ventilation systems with elements for exhaust air and / or supply air can be considered; depending on the situation, the system then contains one or two central fans and assigned collection channels.
  • systems for "treated” air in particular heating and air-conditioning systems, as well as ventilation and air-conditioning systems and facilities are expressly to be included.
  • the invention is thus based on the consideration that the closure members (throttle valves, blinds, iris diaphragms, slides and the like) and their drive (motors, magnets, pneumatic cylinders, bimetal, memory metal, etc.) can be grouped together in one system.
  • the proposed "modular" structure enables very simple planning, cost-effective production and the simple assembly of prefabricated units.
  • the "passive" control modules with regard to air transport are considerably simpler and cheaper compared to individual devices containing blowers. By making the control modules generally accessible, e.g. maintenance in a stairwell or above the apartment corridors, maintenance is possible without access to the individual apartment rooms.
  • the electrical installation for the locking drives can also be drastically simplified and can be practically completely prefabricated on the individual control module.
  • the control module also offers options for simple control of the entire system or the central fan. Furthermore, the installation is particularly simple and inexpensive if the electrical part is designed as a low-voltage, low-voltage system.
  • FIG. 1 shows a ventilation system - as an example of a ventilation system according to the invention - in a multi-storey residential building 1.
  • the superimposed floors 2 are accessed by a common staircase 3, and on each floor there are two apartments 4 lying side by side.
  • Building 1 is shown partially broken away, i.e. Of the five floors, only four are drawn, so that the apartments on floor IV can be seen from above.
  • the ventilation system installed in building 1 has a central fan 15 - here a roof fan - and a collecting duct 10 operated by it; the latter is led, for example, through a vertical installation shaft, which is located in the building next to the staircase and is accessible from this on each floor through a revision cover (maintenance door) (not shown).
  • a vertical installation shaft which is located in the building next to the staircase and is accessible from this on each floor through a revision cover (maintenance door) (not shown).
  • suction lines 21 are predominantly installed in the ceiling, which lead as ventilation branch lines to suction points 22 (ventilation points) arranged in a distributed manner, for example in both apartments on the floor in the kitchen (steam exhaust) and bathroom and toilet.
  • these suction lines 21 do not lead directly to the collecting duct 10, but instead there is a control module 20 directly connected to the collecting duct 10 on each floor, that is to say for a group of suction points 22 in each case, which has a connection point for each suction line .
  • each of these connection points is equipped with a locking element and individually controllable locking drive.
  • the opening and closing or the regulation of the individual branch lines 21 does not take place at the ventilation points 22, but the latter are simply formed by the open ends of the suction lines (at most behind a screen, in a suspended ceiling or covered by a ventilation grille).
  • the ventilation points 22 of a floor 2 each form a group and are connected to the control module 20 present on each floor, and all control modules 20 are in turn connected by the vertical collecting duct 10 leading to the fan 15.
  • the ventilation points can also be configured, for example, by designing the control module or connecting the branch lines. of adjoining apartments 4 on one floor 2 can be combined into separate groups.
  • the control modules 20 are installed in the building 1 in such a way that they can be reached as directly as possible from the stairwell 3 or from other generally accessible rooms; also the installation e.g. above the apartment corridor can be appropriate.
  • the course of the collecting duct, the arrangement of the fan, the grouping of the ventilation points, etc. can also be designed differently than in the example according to Fig. 1.
  • the collecting channel can be guided, for example, horizontally or at an angle.
  • the ventilation system according to the invention can also be used for office buildings, commercial buildings, public buildings, etc.
  • control module 20 as part of a ventilation system, initially relating to the ventilation.
  • a control module should essentially have a collecting box which is designed for direct connection to the collecting channel 10; the collecting box should have a plurality of connecting pieces for connecting suction lines, each connecting piece being provided with a closure member and the associated closure drive.
  • a pipe section 23 forms two opposite, coaxial connecting pieces 24 for connection to the collecting duct 10.
  • a collecting box 25 located between the named connecting pieces 24 stands transversely to the axis of the pipe piece 23 and communicates with the pipe piece ( partial penetration).
  • the collection box 25 is, as shown, preferably prismatic and composed of two halves; it can also be omitted the left half in Figs. 2 and 3 and the other half of the collecting box can be closed by a flat plate.
  • a plurality of connecting pieces 26 are arranged on the collecting box 25.
  • the connecting pieces 26 can all be directed to one side or, as indicated by dash-dotted lines, also to the other side.
  • the nozzles 26 are provided with individual closure members 27 and their closure drive 28, so that in each suction line 21 the air flow on the control module can be switched on, interrupted or regulated.
  • other closing elements such as louvre grilles, iris diaphragms, sliders or the like, can of course be used, wherein only an open / close control or a continuous quantity regulation can be provided as required.
  • a control unit 40 is also assigned to the control module 20a for controlling the locking drives 28 of the group in question.
  • control lines 41 (indicated by dash-dotted lines in FIG. 1) are connected to the latter and are activated as required by the rooms to be vented; control lines 41 can also be provided which jointly control all drives 28 of a group (e.g. for all suction points in an apartment). Further details and control options will be discussed below in connection with FIGS. 7 and 8.
  • the collecting box 35 is composed of one or more stackable rings 31 and two end plates 32, 32 ', which plates form the connecting piece 24 for connecting the collecting channel 10.
  • Each ring 31 has nozzles 26 projecting radially in different directions for connecting the suction lines 21.
  • the outgoing direction of the connecting piece 26 can be selected by adjusting the rotational position of the rings 31, as can be seen from FIG. 5.
  • any connections 26 which are not required and which are provided in reserve can be closed by means of a cover 29 (FIG. 4) or the like.
  • the control module 20b is also equipped with closure members 27 in the individual connecting pieces 26 and associated closure drives 28 and also with a group control unit 40.
  • connecting pieces 26 for suction lines with different diameters can be provided.
  • cross-sectional diaphragms 33 with a given passage cross-section to the sockets 26, for example to the ends of the sockets 26 which still protrude radially inwards, as can be seen from the sectional illustration on the right in FIG.
  • Air filters 34 can also be attached in individual nozzles 26, especially for control purposes in suction lines 21 which are connected to steam hoods in kitchens are: If a dirty filter 34 is found during maintenance, this is an indication that a grease filter has been removed in accordance with the regulations in the fume hood concerned.
  • the expansion variants described above can of course also be used in the control module 20a according to FIGS. 2 and 3 as well as in other conceivable embodiments of control modules.
  • control modules 20 including the control and wiring can be largely prefabricated and installed as a unit. Subsequent changes or extensions to the system can also be easily carried out at any time.
  • Control modules of the type described above or of a similar type can of course also be used for ventilation instead of for ventilation, that is to say for the distribution and control of the supply air in a ventilation system.
  • the above statements then apply mutatis mutandis, and the supply air control modules are then connected to a supply air collecting duct which is operated by a ventilation fan (not shown).
  • a ventilation fan not shown.
  • FIG. 6 shows, however, combined control modules for exhaust air and supply air are also possible.
  • the control module 20c has a collecting box 55, which is subdivided into a supply air box 57 and an exhaust air box 58 by means of a partition 56.
  • the control module 20 is connected to collecting ducts 10a and 10b (risers), namely the supply air box 57 with the duct 10a and the exhaust air box 58 with the duct 10b.
  • the collecting ducts lead to the central parts of the system (fan, heating and / or air conditioning system, for example with heat recovery).
  • the control module 20c In order to operate several ventilation points - for example similar to the different rooms in an apartment as in FIG. 1 - the control module 20c a corresponding number of nozzle pairs P.
  • the two connecting pieces 26a and 26b of each pair P are each intended for connection to a supply air and an associated exhaust air branch line.
  • Each connecting piece 26a, 26b is provided with a closing element 27, and both closing elements of each pair of connecting pieces P are provided with a common closing drive 28, which effects the adjustment of both closing elements in the same direction.
  • the one connector 26a of each pair P communicates with the channel 10a and the other connector 26b with the channel 10b via the control module 20c;
  • all connections 26a start from the supply air box 57, while all connections 26b open into the exhaust air box 58.
  • the header box according to FIGS. 1 and 6 with a flat prismatic arrangement, with the connecting pieces for the ventilation branch pipes and the at least one header duct arranged on the narrow sides of the header box are.
  • the common locking drive 28 of each pair of connecting pieces P can be activated via control lines 42 as required. Thanks to common and co-directional control of the air flows in the branch lines assigned to each other, the ventilation of the individual rooms or locations with respect to volume, air speed and pressure can thus be controlled individually and as required. Even in the case of separate collecting boxes or modules for exhaust air and supply air, a common control system is of course expedient in order to adjust the shutters of exhaust air and supply air branch lines assigned to one another in the same direction.
  • the two connecting pieces 26a, 26b can be encompassed by a common flange plate (not shown), which is used to connect the unit 59 serves on the collecting box 55, and which also carries the drive 28.
  • a common flange plate not shown
  • closure elements can also be used here, such as throttle flaps, lamella closures, sliders, iris diaphragms, fire protection flaps etc.
  • control module 20c can also have connections (not shown in FIG. 6) with closure members for individual lines, which start from the supply air box 57 or open into the exhaust air box 58. This is e.g. expedient for extracting the moisture from tumblers or from cellars or on the other hand for supplying air to fireplaces.
  • a simple control of the fan drive 16 in accordance with the need for air delivery capacity, which varies greatly over time, can be realized via the group control units 40 as follows: the individually controllable closure members 27 are each provided with a position transmitter 43 (see also FIGS. 4 and 5) . These generate a position signal which is fed via lines 44 on the control module 20 to a summing circuit in the relevant group control unit 40. With the position signal it can be (for example in the case of throttle valves) only an open / close signal or (in the case of continuously controllable closure members) a correspondingly constantly changing signal.
  • the summing circuit 45 - symbolized by an AND gate - generates a corresponding summation signal which is fed via line 46 to a central control unit 50. Corresponding sum signals also reach the central control unit 50 via lines 46 from the other group control units, where they are fed to a further circuit 47 for forming the sum.
  • the sum signal on the output line 48 thereof is used to control the speed of the fan motor 16 as required.
  • the system can also be controlled in a variety of ways from the central control unit 50, as indicated by the control line 51 leading to the group control unit 40 in FIG. 7.
  • the central control according to a time program, override of the individual shutter drives e.g. in the event of fire, shock or interval ventilation, limited permanent ventilation, etc.
  • Other control functions can also expediently be carried out from the group control unit 40, e.g. Run-on after switching off, priority switching for certain ventilation points, etc.
  • control command transmitters which are assigned to the individual locations to be ventilated (e.g. living rooms, bathrooms, toilets, kitchens, etc. in an apartment), the electrical locking drives and, if applicable, regulators, time switch means and connection points for the central system control unit are combined in terms of circuitry.
  • the aforementioned group control unit is expediently designed as a low-voltage, low-voltage system.
  • the group control itself especially with regard to the control command transmitters and their connecting lines to the control module, as will be explained below using the example of FIG. 8.
  • the group control unit 40a shown schematically in FIG. 8 for a control module, for example according to FIG. 6, comprises the electric lock drives 28 of the control module (connected via the control lines 42) and also control command transmitters 61, 62, 63 which are assigned to the ventilated points . Since the group control unit 40a is designed as a low-voltage, low-voltage system, the entire control system can be installed without licensed personnel.
  • the unit 40a is expediently provided for connection to the AC network, for example via a plug. It contains an integrated network transformer 64, which effects the galvanic isolation from the AC network.
  • the laying of the lines 42 on the control module, the command lines 41 from the decentralized control command transmitters and further lines under low voltage can be carried out using proven and standardized elements, in particular by means of plug-in connections, as are customary for 12 volt or 24 volt systems; Suitable low-voltage devices are also available and usable for the shutter drives and the command devices.
  • control command transmitters 61, 62, 63 can be connected as shown in FIG. 8.
  • motion detectors 61 are expedient, especially passive infrared sensors. Such motion detectors automatically react to the presence of people in the relevant room or surveillance area during the respective length of stay.
  • a command by means of photocell 63 which responds to the room lighting, is also possible in a manner known per se.
  • the control of a fume hood can be included, which can be controlled via a line 49. Another possibility is the control depending on the air humidity by means of a hygrostat (not shown), e.g. in basements.
  • the command transmitter can advantageously be combined with the mouth part of an assigned ventilation branch line (e.g. supply air line in the relevant room) to form an assembly unit.
  • the relevant control lines 41 can then even be laid in the ventilation branch line, which leads to the control module 20 and the group control unit mounted there.
  • the group control unit 40a according to FIG. 8 can also, as indicated, be controlled by a control center 50 of the entire ventilation system via a line 51. This can be done individually or together with other group control units. Such a higher-level control enables the entire operation to be controlled independently of the users, for example, at certain times of the day, blast ventilation or, on the other hand, throttling of the ventilation output can be forced.
  • this makes it possible to rationally plan, manufacture and install ventilation systems in the required configuration with the desired control options and operating properties.
  • This is mainly due to the modular structure, in that the components of the systems, such as fans, pipes, mouth parts, etc., and in particular the control modules, including the group control units, can be largely prefabricated or preassembled and wired as required from standardized components.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ventilation (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Flow Control (AREA)
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Abstract

The installation in a building (1) comprises a collecting duct (10) which is served by a fan (15). Directly connected to the collecting duct (10) are control modules (2), to which there are individually connected via branch pipes (21) in each case a group of ventilating points (22), e.g. those of a building storey (2). In the control module (20), there is for each branch pipe (21) a connection point with sealing member and individually controllable sealing drive. The apparatuses requiring maintenance are thus grouped together in the control modules (20) and are there easily accessible (e.g. from the stairwell). This makes possible simplified plannaing, extensive prefabrication and easy maintenance, and also simple, reliable requirement-dependent control of the overall installation. By making the electrical part a low-voltage weak-current installation, installation is especially simple. Alternative embodiments of the control modules (20) and different control possibilities are described. Ventilating installations for outgoing air and/or incoming air are possible, also in association with heating and ventilation, and ventilation systems. <IMAGE>

Description

Die Erfindung betrifft eine Lüftungsanlage mit einer Mehrzahl von in einem Gebäude verteilt angeordneten Lüftungsstellen.The invention relates to a ventilation system with a plurality of ventilation points arranged in a building.

Bei grösseren Anlagen, beispielsweise bei der Entlüftung in Mehrfamilienhäusern, ist es in der Regel notwendig, die einzelnen Lüftungsstellen (z.B. Küche, Bad, WC usw.) zu steuern, d.h. die einzelnen Leitungen müssen einzeln geöffnet und geschlossen bzw. reguliert werden können. Dies erfolgt in der Regel an der Mündung der Absaug-Zweigleitungen, d.h. unmittelbar an jeder Absaugstelle, während die Zweigleitungen direkt in den Sammelkanal geführt sind. Es ist deshalb eine Vielzahl verschiedenartiger Verschlussorgane erforderlich, um den technischen und ästhetischen Anforderungen in den entlüfteten Räumen zu genügen. Dabei ist der Einbau in Geräten wie Dampfabzughauben oft nicht einfach und benötigt jedenfalls entsprechenden Platz, oder die Verbindung mit "Lüftungsgittern", die der Raum-Innenausstattung einigermassen angepasst sind, führt zu unbefriedigenden Kompromissen. Dabei ist der Installationsaufwand beträchtlich, weil zu jeder einzelnen Lüftungsstelle sowohl Steuerleitungen wie auch Leitungen für den (elektrischen) Verschlussantrieb verlegt werden müssen. Beim Betrieb erzeugen die Verschlussorgane, vor allem teilweise geöffnete Drosselklappen, oft unangenehme, saugende Geräusche. Eine Gesamtregelung solcher Anlagen, obwohl aus Energiespargründen sehr erwünscht, ist dabei recht schwierig und aufwendig. Zudem sind bei solchen Anlagen mit "dezentralisiertem" Einbau der Verschlussorgane an jeder Absaugstelle die regelmässige Wartung oder allfällige Reparaturen mit erheblichen Umtrieben verbunden, weil dafür der Zugang zu den einzelnen Lüftungsstellen bzw. Wohnräumen erforderlich ist.With larger systems, for example when venting in apartment buildings, it is usually necessary to control the individual ventilation points (e.g. kitchen, bathroom, toilet, etc.), ie the individual lines must be able to be opened and closed or regulated individually. This usually takes place at the mouth of the suction branch lines, ie directly at each suction point, while the branch lines are led directly into the collecting duct. A large number of different types of closure elements are therefore required in order to meet the technical and aesthetic requirements in the ventilated rooms. The installation in devices such as fume hoods is often not easy and in any case requires appropriate space, or the connection with "ventilation grilles", which are adapted to the interior of the room to some extent, leads to unsatisfactory compromises. The installation effort is considerable because both control lines and lines for the (electrical) shutter drive have to be laid for each individual ventilation point. During operation, the locking elements, especially partially opened throttle valves, often generate unpleasant, sucking noises. An overall control of such systems, although very desirable for reasons of energy saving, is quite difficult and complex. In addition, in such systems with "decentralized" Installation of the closure elements at each extraction point requires regular maintenance or any repairs with considerable disruption, because this requires access to the individual ventilation points or living spaces.

Bei Lüftungsanlagen mit Zuluft- und Abluft-Förderung, die u.a. in Heizungs- und/oder Klimaanlagen in Verbindung mit Wärmerückgewinnung eingesetzt werden, enden sodann die Zuluft- und die Abluft-Zweigleitungen an voneinander entfernten Stellen und häufig sogar in verschiedenen Räumen. Vor allem aus diesem Grund ist in solchen Anlagen die bedarfsabhängige, synchrone Volumensteuerung der Luft in den einzelnen Räumen sehr aufwendig und schwierig, da die individuellen (Mündungs-)Verschlussorgane einzeln und gleichlaufend mittels Einzelantrieben betätigt werden müssten.For ventilation systems with supply air and extract air conveyance, which include are used in heating and / or air conditioning systems in connection with heat recovery, then the supply air and the exhaust air branch lines end at separate locations and often even in different rooms. For this reason in particular, the demand-dependent, synchronous volume control of the air in the individual rooms is very complex and difficult, since the individual (mouth) closure members would have to be actuated individually and in unison by means of individual drives.

Aus der DE-A-28 24 157 ist ein Lüftungsgerät für Wohnungen bekannt, welches ein Gehäuse mit mehreren, mittels Drosselklappen steuerbaren Anschlussstutzen und ein Gebläse aufweist; für das Gebläse und die Stellmotoren der Drosselklappen ist eine gemeinsame Steuereinrichtung vorgesehen. Es handelt sich um ein Einzelgerät für eine beschränkte Zahl von Anschlüssen, wobei die Anordnung der einzelnen Drosselorgane an einem Gehäuse offenbart ist. Für den Bau ausgedehnter Anlagen und deren zweckmässige Steuerung gibt das Dokument jedoch keine Hinweise.From DE-A-28 24 157 a ventilation device for apartments is known which has a housing with a plurality of connecting pieces which can be controlled by means of throttle valves and a blower; A common control device is provided for the blower and the actuators of the throttle valves. It is a single device for a limited number of connections, the arrangement of the individual throttle bodies on a housing being disclosed. However, the document does not provide any information for the construction of extensive systems and their appropriate control.

Mit der Erfindung soll ein neuartiger Aufbau solcher Lüftungsanlagen vorgeschlagen werden, bei welchen die vorgenannten Nachteile beseitigt sind. Insbesondere wird ein standardisierter, einfacher und kostengünstiger Gesamtaufbau solcher Anlagen angestrebt, deren Wartung entscheidend vereinfacht ist und die auch die Möglichkeit einer einfachen und effizienten Gesamtregelung bieten. - Diese Aufgabe ist erfindungsgemäss durch die im Patentanspruch 1 angegebenen Merkmale gelöst.The invention is intended to propose a novel construction of such ventilation systems in which the aforementioned disadvantages are eliminated. In particular, a standardized, simple and cost-effective overall structure of such systems is sought, the maintenance of which is decisively simplified and which also offer the possibility of simple and efficient overall control. - This object is achieved by the features specified in claim 1.

Im Zusammenhang mit der vorliegenden Erfindung ist "Lüftung" als wahlweise a) nur die Entlüftung, b) sowohl Entlüftung als auch Belüftung, oder c) nur die Belüftung betreffend zu verstehen.In connection with the present invention, "ventilation" is to be understood as either a) only the ventilation, b) both ventilation and ventilation, or c) only regarding ventilation.

Dementsprechend können also Lüftungsanlagen mit Elementen für Abluft und/oder Zuluft in Betracht kommen; je nachdem enthält dann die Anlage einen oder zwei zentrale Ventilatoren und zugeordnete Sammelkanäle. Im weiteren sollen ausdrücklich auch Anlagen für "behandelte" Luft, also insbesondere Heizungs- und Klimaanlagen, sowie ferner lufttechnische Anlagen und Einrichtungen umfasst sein.Accordingly, ventilation systems with elements for exhaust air and / or supply air can be considered; depending on the situation, the system then contains one or two central fans and assigned collection channels. Furthermore, systems for "treated" air, in particular heating and air-conditioning systems, as well as ventilation and air-conditioning systems and facilities are expressly to be included.

Die Erfindung geht somit von der Ueberlegung aus, dass die Verschlussorgane (Drosselklappen, Jalousien, Irisblenden, Schieber und dergleichen) und deren Antrieb (Motoren, Magnete, pneumatische Zylinder, Bimetall, Memory-Metall ect.) in einer Anlage gruppenweise zusammengefasst werden können. Der vorgeschlagene "modulare" Aufbau ermöglicht eine sehr einfache Planung, kostengünstige Herstellung und die einfache Montage von vorgefertigten Einheiten. Die bezüglich Luftförderung "passiven" Steuerungsmodule sind, verglichen mit Gebläse enthaltenden Einzelgeräten, erheblich einfacher und billiger. Indem die Steuerungsmodule allgemein zugänglich, z.B. in einem Treppenhaus-Schacht oder über den Wohnungskorridoren, eingebaut werden, ist die Wartung problemlos ohne Zugang zu den einzelnen Wohnungsräumen möglich. Auch die elektrische Installation für die Verschlussantriebe lässt sich drastisch vereinfachen und kann am einzelnen Steuerungsmodul praktisch vollständig vorgefertigt werden. Wie weiter unten im einzelnen ausgeführt, bietet das Steuerungsmodul auch Möglichkeiten für eine einfache Steuerung der Gesamtanlage bzw. des zentralen Ventilators. Ferner wird die Installation besonders einfach und kostengünstig, wenn der elektrische Teil als Kleinspannungs-Schwachstromanlage ausgeführt wird.The invention is thus based on the consideration that the closure members (throttle valves, blinds, iris diaphragms, slides and the like) and their drive (motors, magnets, pneumatic cylinders, bimetal, memory metal, etc.) can be grouped together in one system. The proposed "modular" structure enables very simple planning, cost-effective production and the simple assembly of prefabricated units. The "passive" control modules with regard to air transport are considerably simpler and cheaper compared to individual devices containing blowers. By making the control modules generally accessible, e.g. maintenance in a stairwell or above the apartment corridors, maintenance is possible without access to the individual apartment rooms. The electrical installation for the locking drives can also be drastically simplified and can be practically completely prefabricated on the individual control module. As explained in detail below, the control module also offers options for simple control of the entire system or the central fan. Furthermore, the installation is particularly simple and inexpensive if the electrical part is designed as a low-voltage, low-voltage system.

Besondere, vorteilhafte Ausführungsformen der im Patentapruch 1 definierten Lüftungsanlage sind in den Ansprüchen 2 bis 18 angegeben.Particular, advantageous embodiments of the ventilation system defined in patent claim 1 are specified in claims 2 to 18.

Nachstehend werden Ausführungsbeispiele der erfindungsgemässen Lüftungsanlage und Beispiele von Steuerungsmodulen in Verbindung mit der Zeichnung näher erläutert.

Fig. 1
zeigt schematisch eine erfindungsgemässe Entlüftungsanlage in einem mehrgeschossigen, perspektivisch und aufgeschnitten dargestellten Gebäude,
Fig. 2
ist die Seitenansicht und
Fig. 3
die Draufsicht eines ersten Ausführungsbeispiels eines Steuerungsmoduls,
Fig. 4
zeigt eine weitere Ausführungsform eines Steuerungsmoduls von der Seite, die eine Hälfte in Ansicht und die andere Hälfte im Schnitt,
Fig. 5
ist die Draufsicht des Steuerungsmoduls nach Fig. 4,
Fig. 6
zeigt ein kombiniertes Steuerungsmodul für Abluft und Zuluft in schematischer Darstellung,
Fig. 7
zeigt als Prinzipschema eine mögliche Steuerung der Gesamtanlage und
Fig. 8
ist das Blockschaltbild einer beispielsweisen Gruppensteuereinheit eines Steuerungsmoduls.
Exemplary embodiments of the ventilation system according to the invention and examples of control modules are explained in more detail in connection with the drawing.
Fig. 1
schematically shows a ventilation system according to the invention in a multi-storey building, shown in perspective and cut open,
Fig. 2
is the side view and
Fig. 3
the top view of a first embodiment of a control module,
Fig. 4
shows a further embodiment of a control module from the side, one half in view and the other half in section,
Fig. 5
4 is a top view of the control module according to FIG.
Fig. 6
shows a combined control module for exhaust air and supply air in a schematic representation,
Fig. 7
shows as a basic diagram a possible control of the entire system and
Fig. 8
is the block diagram of an example group control unit of a control module.

In Fig. 1 ist eine Entlüftungsanlage - als Beispiel einer erfindungsgemässen Lüftungsanlage - in einem mehrgeschossigen Wohngebäude 1 dargestellt. Die übereinanderliegenden Geschosse 2 sind durch ein gemeinsames Treppenhaus 3 erschlossen, und auf jedem Geschoss befinden sich zwei nebeneinander liegende Wohnungen 4. Das Gebäude 1 ist teilweise weggebrochen dargestellt, d.h. von insgesamt fünf Geschossen sind nur deren vier gezeichnet, so dass die Wohnungen auf dem Geschoss IV von oben einsehbar sind.1 shows a ventilation system - as an example of a ventilation system according to the invention - in a multi-storey residential building 1. The superimposed floors 2 are accessed by a common staircase 3, and on each floor there are two apartments 4 lying side by side. Building 1 is shown partially broken away, i.e. Of the five floors, only four are drawn, so that the apartments on floor IV can be seen from above.

Die im Gebäude 1 eingebaute Entlüftungsanlage weist einen zentralen Ventilator 15 - hier ein Dachventilator - und einen von diesem bedienten Sammelkanal 10 auf; letzterer ist beispielsweise durch einen vertikalen Installationsschacht geführt, welcher sich im Gebäude neben dem Treppenhaus befindet und von diesem in jedem Stockwerk durch einen Revisionsdeckel (Wartungstüre) zugänglich ist (nicht dargestellt). In jedem Geschoss sind mehrere Absaugleitungen 21 vorwiegend in der Decke verlegt, welche als Lüftungs-Zweigleitungen zu verteilt angeordneten Absaugstellen 22 (Lüftungsstellen) führen, beispielsweise in beiden Wohnungen des Geschosses jeweils in Küche (Dampfabzug), Bad und WC. Diese Absaugleitungen 21 führen jedoch nicht, wie bekannt, direkt an den Sammelkanal 10, sondern es ist in jedem Geschoss, also für jeweils eine Gruppe von Absaugstellen 22, ein mit dem Sammelkanal 10 unmittelbar verbundenes Steuerungsmodul 20 vorhanden, welches eine Anschlussstelle für jede Absaugleitung aufweist. Wie weiter unten noch im einzelnen beschrieben, ist jede dieser Anschlussstellen mit einem Verschlussorgan und einzeln steuerbarem Verschlussantrieb ausgerüstet. Somit erfolgt also das Oeffnen und Schliessen bzw. die Regelung der einzelnen Zweigleitungen 21 nicht an den Lüftungsstellen 22, sondern die letzteren sind einfach durch die offenen Enden der Absaugleitungen gebildet (allenfalls hinter einer Sichtblende, in einer abgehängten Decke oder durch ein Lüftungsgitter abgedeckt).The ventilation system installed in building 1 has a central fan 15 - here a roof fan - and a collecting duct 10 operated by it; the latter is led, for example, through a vertical installation shaft, which is located in the building next to the staircase and is accessible from this on each floor through a revision cover (maintenance door) (not shown). On each floor, several suction lines 21 are predominantly installed in the ceiling, which lead as ventilation branch lines to suction points 22 (ventilation points) arranged in a distributed manner, for example in both apartments on the floor in the kitchen (steam exhaust) and bathroom and toilet. However, as is known, these suction lines 21 do not lead directly to the collecting duct 10, but instead there is a control module 20 directly connected to the collecting duct 10 on each floor, that is to say for a group of suction points 22 in each case, which has a connection point for each suction line . As described in more detail below, each of these connection points is equipped with a locking element and individually controllable locking drive. Thus, the opening and closing or the regulation of the individual branch lines 21 does not take place at the ventilation points 22, but the latter are simply formed by the open ends of the suction lines (at most behind a screen, in a suspended ceiling or covered by a ventilation grille).

Bei der dargestellten (häufig anzutreffenden) Gebäudeanordnung bilden also jeweils die Lüftungsstellen 22 eines Geschosses 2 eine Gruppe und sind an das in jedem Geschoss vorhandene Steuerungsmodul 20 angeschlossen, und sämtliche Steuerungsmodule 20 sind ihrerseits durch den vertikalen, zum Ventilator 15 führenden Sammelkanal 10 verbunden. Es können auch durch geeignete Ausbildung des Steuerungsmoduls bzw. den Anschluss der Zweigleitungen jeweils die Lüftungsstellen z.B. von nebeneinander liegenden Wohnungen 4 eines Geschosses 2 zu getrennten Gruppen zusammengefasst werden. Von Bedeutung insbesondere für die Wartung der Anlage ist, dass die Steuerungsmodule 20 im Gebäude 1 so eingebaut sind, dass sie möglichst vom Treppenhaus 3 oder von anderen allgemein zugänglichen Räumen aus direkt erreichbar sind; auch der Einbau jeweils z.B. über dem Wohnungskorridor kann zweckmässig sein.In the illustrated (frequently encountered) building arrangement, the ventilation points 22 of a floor 2 each form a group and are connected to the control module 20 present on each floor, and all control modules 20 are in turn connected by the vertical collecting duct 10 leading to the fan 15. The ventilation points can also be configured, for example, by designing the control module or connecting the branch lines. of adjoining apartments 4 on one floor 2 can be combined into separate groups. Of particular importance for the maintenance of the system is that the control modules 20 are installed in the building 1 in such a way that they can be reached as directly as possible from the stairwell 3 or from other generally accessible rooms; also the installation e.g. above the apartment corridor can be appropriate.

Selbstverständlich können je nach Art des Gebäudes und je nach Anforderungen an die Lüftungsanlage der Verlauf des Sammelkanals, die Anordnung des Ventilators, die Gruppeneinteilung der Lüftungsstellen usw. auch anders ausgeführt sein als im Beispiel nach Fig. 1. Ausser mehrgeschossigen Wohngebäuden kommen auch Reihenhaus-Siedlungen, Terrassenhäuser usw. in Frage, wobei der Sammelkanal z.B. horizontal oder schräg geführt sein kann. Neben Wohngebäuden kommt die erfindungsgemässe Lüftungsanlage aber auch für Bürogebäude, Gewerbebauten, öffentliche Gebäude usw. in Frage.Of course, depending on the type of building and the requirements for the ventilation system, the course of the collecting duct, the arrangement of the fan, the grouping of the ventilation points, etc. can also be designed differently than in the example according to Fig. 1. In addition to multi-storey residential buildings, there are also terraced houses , Terrace houses, etc. in question, the collecting channel can be guided, for example, horizontally or at an angle. In addition to residential buildings, the ventilation system according to the invention can also be used for office buildings, commercial buildings, public buildings, etc.

Die folgenden Ausführungen im Zusammenhang mit den Figuren 2 bis 5 betreffen mögliche Ausgestaltungen und Details des Steuerungsmoduls 20 als Bestandteil einer Lüftungsanlage, zunächst auf die Entlüftung bezogen. Ein solches Steuerungsmodul soll im wesentlichen einen Sammelkasten aufweisen, welcher zur direkten Verbindung mit dem Sammelkanal 10 ausgebildet ist; der Sammelkasten soll mehrere Stutzen zum Anschluss von Absaugleitungen aufweisen, wobei diese Stutzen je mit einem Verschlussorgan und dem zugehörigen Verschlussantrieb versehen sind.The following explanations in connection with FIGS. 2 to 5 relate to possible configurations and details of the control module 20 as part of a ventilation system, initially relating to the ventilation. Such a control module should essentially have a collecting box which is designed for direct connection to the collecting channel 10; the collecting box should have a plurality of connecting pieces for connecting suction lines, each connecting piece being provided with a closure member and the associated closure drive.

Beim Beispiel eines Steuerungsmoduls 20a nach Fig. 2 und 3 bildet ein Rohrstück 23 zwei gegenüberliegende, koaxiale Verbindungsstutzen 24 zur Verbindung mit dem Sammelkanal 10. Ein zwischen den genannten Verbindungsstutzen 24 befindlicher Sammelkasten 25 steht quer zur Achse des Rohrstücks 23 und kommuniziert mit dem Rohrstück (teilweise Durchdringung). Der Sammelkasten 25 ist, wie dargestellt, vorzugsweise prismatisch und aus zwei Hälften zusammengesetzt; es kann auch die in den Fig. 2 und 3 linke Hälfte entfallen und die andere Hälfte des Sammelkastens durch eine ebene Platte verschlossen sein. Für den Anschluss der Absaugleitungen 21 einer Gruppe sind am Sammelkasten 25 mehrere Stutzen 26 angeordnet. Je nach Anzahl und Anordnung der Absaugleitungen können die Stutzen 26 alle nach der einen Seite oder, wie strichpunktiert angedeutet, auch nach der anderen Seite gerichtet sein. Die Stutzen 26 sind mit individuellen Verschlussorganen 27 und deren Verschlussantrieb 28 versehen, so dass in jeder Absaugleitung 21 der Luftstrom am Steuerungsmodul eingeschaltet, unterbrochen oder geregelt werden kann. Anstelle der dargestellten Drosselklappen 27 können selbstverständlich andere Verschlussorgane, wie Jalousiegitter, Irisblenden, Schieber oder dergleichen verwendet werden, wobei nach Bedarf lediglich eine Auf/Zu-Steuerung oder eine stufenlose Mengenregulierung vorgesehen sein kann.In the example of a control module 20a according to FIGS. 2 and 3, a pipe section 23 forms two opposite, coaxial connecting pieces 24 for connection to the collecting duct 10. A collecting box 25 located between the named connecting pieces 24 stands transversely to the axis of the pipe piece 23 and communicates with the pipe piece ( partial penetration). The collection box 25 is, as shown, preferably prismatic and composed of two halves; it can also be omitted the left half in Figs. 2 and 3 and the other half of the collecting box can be closed by a flat plate. For the connection of the suction lines 21 of a group, a plurality of connecting pieces 26 are arranged on the collecting box 25. Depending on the number and arrangement of the suction lines, the connecting pieces 26 can all be directed to one side or, as indicated by dash-dotted lines, also to the other side. The nozzles 26 are provided with individual closure members 27 and their closure drive 28, so that in each suction line 21 the air flow on the control module can be switched on, interrupted or regulated. Instead of the throttle valve 27 shown, other closing elements, such as louvre grilles, iris diaphragms, sliders or the like, can of course be used, wherein only an open / close control or a continuous quantity regulation can be provided as required.

Dem Steuerungsmodul 20a ist für die Steuerung der Verschlussantriebe 28 der betreffenden Gruppe ferner eine Gruppen-Steuereinheit 40 zugeordnet. An der letzteren werden insbesondere auch Steuerleitungen 41 (in Fig. 1 strichpunktiert angedeutet) angeschlossen, die von den zu entlüftenden Räumen nach Bedarf aktiviert werden; es können auch Steuerleitungen 41 vorgesehen sein, welche sämtliche Antriebe 28 einer Gruppe (z.B. für alle Absaugstellen einer Wohnung) gemeinsam steuern. Auf weitere Einzelheiten und Möglichkeiten der Steuerung wird weiter unten im Zusammenhang mit den Figuren 7 und 8 noch eingetreten.A control unit 40 is also assigned to the control module 20a for controlling the locking drives 28 of the group in question. In particular, control lines 41 (indicated by dash-dotted lines in FIG. 1) are connected to the latter and are activated as required by the rooms to be vented; control lines 41 can also be provided which jointly control all drives 28 of a group (e.g. for all suction points in an apartment). Further details and control options will be discussed below in connection with FIGS. 7 and 8.

Beim Ausführungsbeispiel eines Steuerungsmoduls 20b nach Fig. 4 und 5 ist der Sammelkasten 35 aus einem oder mehreren stapelbaren Ringen 31 und zwei stirnseitigen Schilden 32, 32′ zusammengesetzt, welche Schilde die Verbindungsstutzen 24 für den Anschluss des Sammelkanals 10 bilden. Jeder Ring 31 weist radial nach verschiedenen Richtungen abstehende Stutzen 26 zum Anschluss der Absaugleitungen 21 auf. Noch bei der Montage bzw. beim Einbau des Steuerungsmoduls 20b kann die Abgangsrichtung der Stutzen 26 durch Einstellen der Drehlage der Ringe 31 gewählt werden, wie aus der Fig. 5 hervorgeht. Natürlich können (auch beim Ausführungsbeispiel nach Fig. 2 und 3) allenfalls nicht benötigte, in Reserve vorgesehene Stutzen 26 mittels einem Deckel 29 (Fig. 4) oder dergleichen verschlossen werden. Auch das Steuerungsmodul 20b ist, wie ersichtlich, mit Verschlussorganen 27 in den einzelnen Stutzen 26 und zugehörigen Verschlussantrieben 28 und ferner mit einer Gruppen-Steuereinheit 40 ausgerüstet.In the exemplary embodiment of a control module 20b according to FIGS. 4 and 5, the collecting box 35 is composed of one or more stackable rings 31 and two end plates 32, 32 ', which plates form the connecting piece 24 for connecting the collecting channel 10. Each ring 31 has nozzles 26 projecting radially in different directions for connecting the suction lines 21. During the assembly or installation of the control module 20b, the outgoing direction of the connecting piece 26 can be selected by adjusting the rotational position of the rings 31, as can be seen from FIG. 5. Of course (also in the exemplary embodiment according to FIGS. 2 and 3), any connections 26 which are not required and which are provided in reserve can be closed by means of a cover 29 (FIG. 4) or the like. As can be seen, the control module 20b is also equipped with closure members 27 in the individual connecting pieces 26 and associated closure drives 28 and also with a group control unit 40.

Je nach Erfordernis können, wie ersichtlich, Stutzen 26 für Absaugleitungen mit verschiedenen Durchmessern vorgesehen sein. Zur Begrenzung der Saugleistung in einzelnen Saugleitungen 21 kann es zweckmässig sein, an den Stutzen 26 Querschnitt-Blenden 33 mit gegebenem Durchlassquerschnitt anzubringen, beispielsweise an den radial noch innen ragenden Enden der Stutzen 26, wie aus der Schnittdarstellung rechts in Fig. 4 ersichtlich ist. In einzelnen Stutzen 26 können ferner auch Luftfilter 34 angebracht werden, vor allem zu Kontrollzwecken bei Absaugleitungen 21, welche an Dampfabzuhauben in Küchen angeschlossen sind: Wird bei der Wartung ein verschmutztes Filter 34 festgestelllt, so ist dies ein Hinweis darauf, dass in der betreffenden Abzughaube ein Fettfilter vorschriftswidrig entfernt worden ist. Die vorbeschriebenen Ausbauvarianten sind natürlich auch beim Steuerungsmodul 20a nach Fig. 2 und 3 wie auch bei anderen denkbaren Ausführungsformen von Steuerungsmodulen anwendbar.Depending on the requirements, as can be seen, connecting pieces 26 for suction lines with different diameters can be provided. To limit the suction power in individual suction lines 21, it may be expedient to attach cross-sectional diaphragms 33 with a given passage cross-section to the sockets 26, for example to the ends of the sockets 26 which still protrude radially inwards, as can be seen from the sectional illustration on the right in FIG. Air filters 34 can also be attached in individual nozzles 26, especially for control purposes in suction lines 21 which are connected to steam hoods in kitchens are: If a dirty filter 34 is found during maintenance, this is an indication that a grease filter has been removed in accordance with the regulations in the fume hood concerned. The expansion variants described above can of course also be used in the control module 20a according to FIGS. 2 and 3 as well as in other conceivable embodiments of control modules.

Wie aus der vorangehenden Beschreibung hervorgeht, sind sämtliche wartungsbedürftigen bzw. reparaturanfälligen Anlagenteile in den Steuerungsmodulen 20 vereint und leicht zugänglich, während an den dezentralen Absaugstellen jeglicher Apparateaufwand entfällt. Die Steuerungsmodule 20 einschliesslich der Steuerung und Verdrahtung können weitgehend vorfabriziert und als Einheit eingebaut werden. Auch nachträgliche Umstellungen oder Erweiterungen der Anlage sind jederzeit leicht durchführbar.As can be seen from the preceding description, all maintenance-requiring or repair-prone system parts are combined in the control modules 20 and are easily accessible, while at the decentralized suction points there is no need for any apparatus. The control modules 20 including the control and wiring can be largely prefabricated and installed as a unit. Subsequent changes or extensions to the system can also be easily carried out at any time.

Steuerungsmodule der vorstehend beschriebenen oder ähnlicher Art können natürlich anstatt für die Entlüftung ebensogut für die Belüftung, also zur Verteilung und Steuerung der Zuluft in einer Lüftungsanlage verwendet werden. Es gelten dann die vorstehenden Ausführungen sinngemäss, und die Zuluft-Steuerungsmodule sind dann an einen Zuluft-Sammelkanal angeschlossen, der von einem Belüftungs-Ventilator bedient wird (nicht dargestellt). Wie das nachfolgende Ausführungsbeispiel nach Fig. 6 zeigt, sind aber auch kombinierte Steuerungsmodule für Abluft und Zuluft möglich.Control modules of the type described above or of a similar type can of course also be used for ventilation instead of for ventilation, that is to say for the distribution and control of the supply air in a ventilation system. The above statements then apply mutatis mutandis, and the supply air control modules are then connected to a supply air collecting duct which is operated by a ventilation fan (not shown). As the following exemplary embodiment according to FIG. 6 shows, however, combined control modules for exhaust air and supply air are also possible.

Das Steuerungsmodul 20c nach Fig. 6 weist einen Sammelkasten 55 auf, welcher mittels einer Trennwand 56 in einen Zuluftkasten 57 und einen Abluftkasten 58 unterteilt ist. Als Bestandteil einer Lüftungsanlage ist das Steuerungsmodul 20 mit Sammelkanälen 10a und 10b (Steigrohren) verbunden, und zwar der Zuluftkasten 57 mit dem Kanal 10a und der Abluftkasten 58 mit dem Kanal 10b. In nicht näher dargestellter Weise führen die Sammelkanäle zu den zentralen Anlageteilen (Ventilator, Heizungs- und/oder Klimaanlage, z.B. mit Wärmerückgewinnung). Zur Bedienung mehrerer Lüftungsstellen - beispielsweise ähnlich wie in Fig. 1 der verschiedenen Räume einer Wohnung - weist das Steuerungsmodul 20c eine entsprechende Anzahl von Stutzenpaaren P auf. Die beiden Stutzen 26a und 26b jedes Paares P sind zum Anschluss jeweils einer Zuluft- und einer zugeordneten Abluft-Zweigleitung bestimmt. Jeder Stutzen 26a, 26b ist mit einem Verschlussorgan 27 versehen, und beide Verschlussorgane jedes Stutzenpaares P sind mit einem gemeinsamen Verschlussantrieb 28 versehen, welcher die gleichsinnige Verstellung beider Verschlussorgane bewirkt. Wie ersichtlich, kommuniziert über das Steuerungsmodul 20c jeweils der eine Stutzen 26a jedes Paares P mit dem Kanal 10a und der andere Stutzen 26b mit dem Kanal 10b; beim dargestellten Ausführungsbeispiel gehen alle Stutzen 26a vom Zuluftkasten 57 aus, während alle Stutzen 26b im Abluftkasten 58 münden. Besonders für den Einbau in einem Decken-Hohlraum (Blindboden, herabgehängte Decke) ist es zweckmässig, den Sammelkasten gemäss Fig. 1 und 6 flachprismatisch auszubilden, wobei die Anschlussstutzen für die Lüftungs-Zweigleitungen wie auch zum mindestens einen Sammelkanal an den Schmalseiten des Sammelkastens angeordnet sind.The control module 20c according to FIG. 6 has a collecting box 55, which is subdivided into a supply air box 57 and an exhaust air box 58 by means of a partition 56. As part of a ventilation system, the control module 20 is connected to collecting ducts 10a and 10b (risers), namely the supply air box 57 with the duct 10a and the exhaust air box 58 with the duct 10b. In a manner not shown, the collecting ducts lead to the central parts of the system (fan, heating and / or air conditioning system, for example with heat recovery). In order to operate several ventilation points - for example similar to the different rooms in an apartment as in FIG. 1 - the control module 20c a corresponding number of nozzle pairs P. The two connecting pieces 26a and 26b of each pair P are each intended for connection to a supply air and an associated exhaust air branch line. Each connecting piece 26a, 26b is provided with a closing element 27, and both closing elements of each pair of connecting pieces P are provided with a common closing drive 28, which effects the adjustment of both closing elements in the same direction. As can be seen, the one connector 26a of each pair P communicates with the channel 10a and the other connector 26b with the channel 10b via the control module 20c; In the exemplary embodiment shown, all connections 26a start from the supply air box 57, while all connections 26b open into the exhaust air box 58. Especially for installation in a ceiling cavity (blind floor, suspended ceiling), it is advisable to design the header box according to FIGS. 1 and 6 with a flat prismatic arrangement, with the connecting pieces for the ventilation branch pipes and the at least one header duct arranged on the narrow sides of the header box are.

Ueber Steuerleitungen 42 lässt sich der gemeinsame Verschlussantrieb 28 jedes Stutzenpaares P nach Bedarf aktivieren. Dank gemeinsamer und gleichsinniger Steuerung der Luftströme in den einander zugeordneten Zweigleitungen kann somit die Lüftung der einzelnen Räume bzw. Stellen bezüglich Volumen, Luftgeschwindigkeit und Druck bedarfsabhängig und einzeln gesteuert werden. Auch bei getrennten Sammelkästen bzw. Modulen für Abluft und Zuluft ist natürlich eine gemeinsame Steuerung zweckmässig, um jeweils die Verschlussorgane einander zugeordneter Abluft- und Zuluft-Zweigleitungen gleichsinnig zu verstellen.The common locking drive 28 of each pair of connecting pieces P can be activated via control lines 42 as required. Thanks to common and co-directional control of the air flows in the branch lines assigned to each other, the ventilation of the individual rooms or locations with respect to volume, air speed and pressure can thus be controlled individually and as required. Even in the case of separate collecting boxes or modules for exhaust air and supply air, a common control system is of course expedient in order to adjust the shutters of exhaust air and supply air branch lines assigned to one another in the same direction.

Für eine rationelle, "modulare" Herstellung des kombinierten Steuerungsmoduls nach Fig. 6 ist es zweckmässig, jeweils die beiden Stutzen eines Paares P mit dem gemeinsamen Antrieb 28 und den zugeordneten Verschlussorganen 27 zu einer konstruktiven Einheit 59 zusammenzufassen, wie mit der strichpunktierten Linie in Fig. 6 angedeutet ist. Beispielsweise können die beiden Stutzen 26a, 26b von einer gemeinsamen Flanschplatte (nicht dargestellt) umfasst sein, die zum Anschluss der Einheit 59 am Sammelkasten 55 dient, und welche auch den Antrieb 28 trägt. Natürlich können auch hier Verschlussorgane verschiedener Art verwendet werden, wie Drosselklappen, Lamellenverschlüsse, Schieber, Irisblenden, Feuerschutzklappen usw.For a rational, "modular" production of the combined control module according to FIG. 6, it is expedient to combine the two connecting pieces of a pair P with the common drive 28 and the associated closure members 27 to form a constructive unit 59, as shown by the dash-dotted line in FIG 6 is indicated. For example, the two connecting pieces 26a, 26b can be encompassed by a common flange plate (not shown), which is used to connect the unit 59 serves on the collecting box 55, and which also carries the drive 28. Of course, various types of closure elements can also be used here, such as throttle flaps, lamella closures, sliders, iris diaphragms, fire protection flaps etc.

Abgesehen von den Stutzenpaaren 26a, 26b für einander zugeordnete Zuluft- und Abluft-Zweigleitungen können am Steuerungsmodul 20c auch Stutzen mit Verschlussorganen für Einzelleitungen vorhanden sein (in Fig. 6 nicht dargestellt), die vom Zuluftkasten 57 ausgehen bzw. im Abluftkasten 58 münden. Dies ist z.B. zum Absaugen der Feuchtigkeit von Tumblern oder aus Kellerräumen oder anderseits für die Zuluft-Speisung von Cheminées zweckmässig.In addition to the connection pairs 26a, 26b for supply air and exhaust air branch lines assigned to one another, the control module 20c can also have connections (not shown in FIG. 6) with closure members for individual lines, which start from the supply air box 57 or open into the exhaust air box 58. This is e.g. expedient for extracting the moisture from tumblers or from cellars or on the other hand for supplying air to fireplaces.

Einige steuerungstechnische Besonderheiten und vorteilhafte Möglichkeiten, die sich im Zusammenhang mit der erfindungsgemässen Lüftungsanlage und den Steuerungsmodulen ergeben, werden nachstehend in Verbindung mit den Fig. 7 und 8 erläutert. In Fig. 7 schematisch dargestellt sind die Steuerungskomponenten einer einzelnen Gruppe - z.B. des Geschosses IV nach Fig. 1 - sowie Teile der zentralen, dem Ventilator 15 und dessen Antrieb 16 zugeordneten Steuerung, an welche die einzelnen Gruppensteuerungen angeschlossen sind.Some special control technology features and advantageous possibilities that arise in connection with the ventilation system according to the invention and the control modules are explained below in connection with FIGS. 7 and 8. The control components of a single group - e.g. of floor IV according to FIG. 1 - as well as parts of the central control assigned to fan 15 and its drive 16, to which the individual group controls are connected.

An der Gruppen-Steuereinheit 40 münden die bereits erwähnten Steuerleitungen 41 zur individuellen, bedarfsmässigen Aktivierung der Zweigleitungen bzw. der diesen zugeordneten Verschlussantriebe 28; die zugehörigen Steuerleitungen 42 zu den Antrieben 28 sind am Steuerungsmodul 20 selbst verlegt.The control lines 41 already mentioned for the individual, required activation of the branch lines or the closing drives 28 assigned to them open at the group control unit 40; the associated control lines 42 to the drives 28 are laid on the control module 20 itself.

Eine einfache Steuerung des Ventilatorantriebs 16 entsprechend dem zeitlich sehr stark variierenden Bedarf an Luft-Förderleistung lässt sich über die Gruppen-Steuereinheiten 40 wie folgt verwirklichen: Die einzeln steuerbaren Verschlussorgane 27 werden je mit einem Stellungsgeber 43 versehen (siehe auch Fig. 4 und 5). Diese erzeugen ein Stellungssignal, welches über Leitungen 44 am Steuerungsmodul 20 einer Summierschaltung in der betreffenden Gruppen-Steuereinheit 40 zugeleitet wird. Beim Stellungssignal kann es sich (beispielsweise im Falle von Drosselklappen) lediglich um ein Auf/Zu-Signal oder aber (bei kontinuierlich regelbaren Verschlussorganen) um ein entsprechend stetig veränderliches Signal handeln. Die Summierschaltung 45 - symbolisiert durch ein UND-Tor - erzeugt ein entsprechendes Summensignal, welches über die Leitung 46 einer zentralen Steuereinheit 50 zugeleitet wird. Entsprechende Summensignale gelangen über Leitungen 46 auch von den übrigen Gruppen-Steuereinheiten in die zentrale Steuereinheit 50, wo sie einer weiteren Schaltung 47 zur Summenbildung zugeleitet werden. Das Summensignal auf deren Ausgangsleitung 48 dient zur bedarfsabhängigen Drehzahl-Steuerung des Ventilatormotors 16.A simple control of the fan drive 16 in accordance with the need for air delivery capacity, which varies greatly over time, can be realized via the group control units 40 as follows: the individually controllable closure members 27 are each provided with a position transmitter 43 (see also FIGS. 4 and 5) . These generate a position signal which is fed via lines 44 on the control module 20 to a summing circuit in the relevant group control unit 40. With the position signal it can be (for example in the case of throttle valves) only an open / close signal or (in the case of continuously controllable closure members) a correspondingly constantly changing signal. The summing circuit 45 - symbolized by an AND gate - generates a corresponding summation signal which is fed via line 46 to a central control unit 50. Corresponding sum signals also reach the central control unit 50 via lines 46 from the other group control units, where they are fed to a further circuit 47 for forming the sum. The sum signal on the output line 48 thereof is used to control the speed of the fan motor 16 as required.

Selbstverständlich kann die Anlage auf vielfältige Weise auch von der zentralen Steuereinheit 50 aus gesteuert werden, wie mit der zur Gruppen-Steuereinheit 40 führenden Steuerleitung 51 in Fig. 7 angedeutet ist. Beispielsweise zu erwähnen sind die zentrale Steuerung nach einem Zeitprogramm, Uebersteuerung der einzelnen Verschlussantriebe z.B. im Brandfall, die Stoss- oder Intervall-Lüftung, begrenzte Dauerlüftung usw. Andere Steuerungsfunktionen können zweckmässig auch von der Gruppensteuereinheit 40 aus erfolgen, wie z.B. Nachlauf nach dem Ausschalten, Prioritätsschaltung für bestimmte Lüftungsstellen usw.Of course, the system can also be controlled in a variety of ways from the central control unit 50, as indicated by the control line 51 leading to the group control unit 40 in FIG. 7. For example, the central control according to a time program, override of the individual shutter drives e.g. in the event of fire, shock or interval ventilation, limited permanent ventilation, etc. Other control functions can also expediently be carried out from the group control unit 40, e.g. Run-on after switching off, priority switching for certain ventilation points, etc.

Ein weiterer Aspekt der Erfindung bezieht sich auf die Installation und Wartung der Gesamtanlage einschliesslich des elektrischen Teils mit den verschiedenen Gruppen-Steuereinheiten. In einer solchen Steuereinheit sind die Steuerbefehlsgeber, die den einzelnen zu belüftenden Stellen zugeordnet sind (z.B. Wohnräume, Bad, WC, Küche usw. einer Wohnung), die elektrischen Verschlussantriebe und gegebenenfalls Regler, Zeitschaltmittel sowie Anschlussstellen für die zentrale Anlagen-Steuereinheit schaltungsmässig zusammengefasst. Beim Einbau wie auch bei der Revision herkömmlicher Lüftungsanlagen sind notwendigerweise Arbeiten durch zwei verschiedene Handwerker auszuführen, nämlich den Lüftungsmonteur und den Elektromonteur, und diese Arbeiten müssen vom bauleitenden Architekten koordiniert und überwacht werden, was häufig zu technischen wie auch terminlichen Schwierigkeiten führt; die Zusammenarbeit beider Handwerker ist beispielsweise erforderlich, wenn die Bad/WC-Ventilation an die dortige Raumbeleuchtung gekoppelt ist, ferner bei Dampfabzugeinrichtungen in der Küche usw.Another aspect of the invention relates to the installation and maintenance of the entire system including the electrical part with the various group control units. In such a control unit, the control command transmitters, which are assigned to the individual locations to be ventilated (e.g. living rooms, bathrooms, toilets, kitchens, etc. in an apartment), the electrical locking drives and, if applicable, regulators, time switch means and connection points for the central system control unit are combined in terms of circuitry. When installing and revising conventional ventilation systems, work must necessarily be carried out by two different tradesmen, namely the ventilation fitter and the electrician, and this work must be coordinated and monitored by the site architect, which often leads to technical as well as scheduling Leads to difficulties; the cooperation between the two craftsmen is necessary, for example, if the bathroom / toilet ventilation is linked to the room lighting there, and also for steam extraction devices in the kitchen, etc.

Zur Behebung solcher Schwierigkeiten ist eine vorgenannte Gruppen-Steuereinheit zweckmässigerweise als Kleinspannungs-Schwachstromanlage ausgeführt. Dadurch kann die gesamte Lüftungsanlage einschliesslich deren Steuerung durch den Lüftungsmonteur allein und ohne Koordinierung durch die Bauleitung installiert werden. Ueberdies ergeben sich Möglichkeiten für eine vorteilhafte Gestaltung der Gruppensteuerung selbst, vor allem bezüglich der Steuerbefehlsgeber und deren Verbindungsleitungen zum Steuerungsmodul, wie nachstehend am Beispiel nach Fig. 8 erläutert wird.To eliminate such difficulties, the aforementioned group control unit is expediently designed as a low-voltage, low-voltage system. This means that the entire ventilation system, including its control, can be installed by the ventilation fitter alone and without coordination by the site management. In addition, there are possibilities for an advantageous design of the group control itself, especially with regard to the control command transmitters and their connecting lines to the control module, as will be explained below using the example of FIG. 8.

Die in Fig. 8 schematisch dargestellte Gruppen-Steuereinheit 40a für ein Steuerungsmodul, beispielsweise nach Fig. 6, umfasst die elektrischen Verschlussantriebe 28 des Steuerungsmoduls (angeschlossen über die Steuerleitungen 42) und ausserdem Steuerbefehlsgeber 61, 62, 63, die den belüfteten Stellen zugeordnet sind. Indem die Gruppen-Steuereinheit 40a als Kleinspannungs-Schwachstromanlage ausgeführt ist, kann die gesamte Steuerung ohne konzessioniertes Personal installiert werden. Die Einheit 40a ist zweckmässigerweise zum Anschluss an das Wechselstromnetz, beispielsweise über einen Stecker, vorgesehen. Sie enthält einen integrierten Netztransformator 64, welcher die galvanische Trennung vom Wechselstromnetz bewirkt. Die Verlegung der Leitungen 42 am Steuerungsmodul, der Befehlsleitungen 41 von den dezentralen Steuerbefehlsgebern sowie weiterer Leitungen unter Kleinspannung kann mit bewährten und standardisierten Elementen ausgeführt werden, insbesondere mittels Steckverbindungen, wie sie für 12 Volt- oder 24 Volt-Anlagen gebräuchlich sind; auch für die Verschlussantriebe und die Befehlsgeber sind geeignete Kleinspannungs-Apparate erhältlich und verwendbar.The group control unit 40a shown schematically in FIG. 8 for a control module, for example according to FIG. 6, comprises the electric lock drives 28 of the control module (connected via the control lines 42) and also control command transmitters 61, 62, 63 which are assigned to the ventilated points . Since the group control unit 40a is designed as a low-voltage, low-voltage system, the entire control system can be installed without licensed personnel. The unit 40a is expediently provided for connection to the AC network, for example via a plug. It contains an integrated network transformer 64, which effects the galvanic isolation from the AC network. The laying of the lines 42 on the control module, the command lines 41 from the decentralized control command transmitters and further lines under low voltage can be carried out using proven and standardized elements, in particular by means of plug-in connections, as are customary for 12 volt or 24 volt systems; Suitable low-voltage devices are also available and usable for the shutter drives and the command devices.

Je nach Art des zu belüftenden Raumes oder entsprechend den jeweiligen Bedienungsanforderungen können gemäss Fig. 8 verschiedenartige Steuerbefehlsgeber 61, 62, 63 angeschlossen werden.Depending on the type of room to be ventilated or according to the respective operating requirements, various types of control command transmitters 61, 62, 63 can be connected as shown in FIG. 8.

In manchen Fällen, insbesondere im Bad/WC-Bereich, ist die Verwendung von Bewegungsmeldern 61 zweckmässig, vor allem von passiven Infrarot-Sensoren. Solche Bewegungsmelder reagieren automatisch auf die Anwesenheit von Personen im betreffenden Raum bzw. Ueberwachungsbereich während der jeweiligen Aufenthaltsdauer. Auch eine Befehlsgabe mittels Photozelle 63, die auf die Raumbeleuchtung anspricht, ist in an sich bekannter Weise möglich. In weiteren Fällen wird die Einschaltung der Lüftung nach Bedarf mittels handbetätigter Schalter 62 zweckmässig sein, beispielsweise eine ein- oder mehrstufige Belüftung der Küche. Es kann dabei die Steuerung einer Dampfabzughaube einbezogen werden, welche über eine Leitung 49 angesteuert werden kann. Eine weitere Möglichkeit ist die Steuerung in Abhängigkeit von der Luftfeuchtigkeit mittels Hygrostat (nicht dargestellt), z.B. in Kellerräumen.In some cases, particularly in the bathroom / toilet area, the use of motion detectors 61 is expedient, especially passive infrared sensors. Such motion detectors automatically react to the presence of people in the relevant room or surveillance area during the respective length of stay. A command by means of photocell 63, which responds to the room lighting, is also possible in a manner known per se. In further cases, it may be expedient to switch on the ventilation as required by means of manually operated switch 62, for example a one- or multi-stage ventilation of the kitchen. The control of a fume hood can be included, which can be controlled via a line 49. Another possibility is the control depending on the air humidity by means of a hygrostat (not shown), e.g. in basements.

Bei berührungslos arbeitenden Steuerbefehlsgebern (Bewegungsmelder 61, Photozellen 63, Hygrostat) kann mit Vorteil der Befehlsgeber mit dem Mündungsteil einer zugeordneten Lüftungs-Zweigleitung (z.B. Zuluft-Leitung im betreffenden Raum) zu einer Montageeinheit zusammengefasst werden. Es können dann sogar die betreffenden Steuerleitungen 41 in der Lüftungs-Zweigleitung verlegt werden, welche zum Steuerungsmodul 20 und der dort montierten Gruppen-Steuereinheit führt.In the case of non-contact control command transmitters (motion detectors 61, photocells 63, hygrostat), the command transmitter can advantageously be combined with the mouth part of an assigned ventilation branch line (e.g. supply air line in the relevant room) to form an assembly unit. The relevant control lines 41 can then even be laid in the ventilation branch line, which leads to the control module 20 and the group control unit mounted there.

Die Gruppen-Steuereinheit 40a nach Fig. 8 kann ebenfalls, wie angedeutet, von einer Steuerzentrale 50 der gesamten Lüftungsanlage über eine Leitung 51 angesteuert werden. Dies kann einzeln oder gemeinsam mit weiteren Gruppen-Steuereinheiten erfolgen. Durch eine solche übergeordnete Ansteuerung lässt sich der Gesamtbetrieb unabhängig von den Benützern steuern, beispielsweise kann zu bestimmten Tageszeiten eine Stossbelüftung oder anderseits eine Drosselung der Lüftungsleistung erzwungen werden.The group control unit 40a according to FIG. 8 can also, as indicated, be controlled by a control center 50 of the entire ventilation system via a line 51. This can be done individually or together with other group control units. Such a higher-level control enables the entire operation to be controlled independently of the users, for example, at certain times of the day, blast ventilation or, on the other hand, throttling of the ventilation output can be forced.

Wie aus vorstehender Beschreibung verschiedener Ausführungsbeispiele hervorgeht, ist es dadurch möglich, Lüftungsanlagen in der erforderlichen Konfiguration mit den gewünschten Steuerungsmöglichkeiten und Betriebseigenschaften rationell zu planen, herzustellen und einzubauen. Dies ist vor allem auf den modularen Aufbau zurückzuführen, indem die Bestandteile der Anlagen, wie Ventilatoren, Rohre, Mündungsteile usw. sowie insbesondere die Steuerungsmodule einschliesslich der Gruppen-Steuereinheiten nach Bedarf aus standardisierten Bauteilen weitgehend vorgefertigt bzw. vormontiert und verdrahtet werden können.As can be seen from the above description of various exemplary embodiments, this makes it possible to rationally plan, manufacture and install ventilation systems in the required configuration with the desired control options and operating properties. This is mainly due to the modular structure, in that the components of the systems, such as fans, pipes, mouth parts, etc., and in particular the control modules, including the group control units, can be largely prefabricated or preassembled and wired as required from standardized components.

Claims (18)

  1. A ventilation installation with a plurality of ventilation points (22) disposed distributed within a building (1), containing
    - at least one central fan (15) with a central control unit (50) associated therewith,
    - at least one central duct (10), each served by a central fan (15), for air extraction and/or air supply at a number of ventilation points,
    - a multiplicity of control modules (20), each connected directly to a central duct (10), to which a sub-group of ventilation points (22) is each individually connected via ventilation branch pipes (21), wherein each connection point (26) has a closure element (27) with a closure drive unit (28) on the control module for a branch pipe (22),
    - and a group control unit (40) for each control module associated with the latter for controlling the closure drive units (28) of the module.
  2. A ventilation installation according to Claim 1 in a multistorey building (1), characterised in that a control module (20) is present on each storey (2), wherein each sub-group consists of the ventilation points (22) of one storey (2) and wherein at least one central duct (10) runs vertically through the storeys (2).
  3. A ventilation installation according to Claim 2, characterised in that the control modules (20) in the building (1) are constructed so that they can be reached from a generally accessible space e.g. a stairwell (3).
  4. A ventilation installation according to Claim 1, characterised in that the group control units (40) are connected to the central control unit (50).
  5. A ventilation installation according to Claim 1, characterised in that the closure elements (27) are provided with positional indicators (43) to produce a positional signal and that switching means (45) are present in the group control units (40) to produce a cumulative signal corresponding to the positions of the closure elements (27) of the sub-group.
  6. A ventilation installation according to Claims 4 and 5, characterised in that the said switching means (45) are connected to a summation circuit (47) present in the central control unit (50), which summation circuit produces a cumulative signal for controlling the fan operation.
  7. A ventilation installation according to Claim 1, characterised in that each group control unit (40a) comprises the electrical closure drive units (28) of the associated control module and control command transmitters (61, 62, 63) associated with the ventilation points (22) of the sub-group, and is constructed as a low-voltage low-current unit.
  8. A ventilation installation according to Claim 7, characterised in that each group control unit (40a) is constructed with electrical separation from the alternating current mains via an integrated mains transformer (64).
  9. A ventilation installation according to Claim 7, characterised by the use of movement detectors (61), particularly by passive infrared sensors as control command transmitters.
  10. A ventilation installation according to Claims 7 or 9, characterised in that the control command transmitter or movement detector (61, 63) is combined with the entry portion of an associated ventilation branch pipe to form a sub-assembly.
  11. A ventilation installation according to Claim 1, characterised in that the control modules (20) have a central box (25, 35, 55) which is designed to connect to at least one central duct (10) and has a multiplicity of connection pieces (26) for the connection of ventilation branch lines (21).
  12. A ventilation installation according to Claim 11, characterised in that the control modules (20) have two opposite coaxial connection pieces (24) for the central duct (10), between which connection pieces the central box (25, 35) is located.
  13. A ventilation installation according to Claim 12, characterised by a tubular portion (23) forming the connection pieces (24), with which tubular portion a transverse, preferably prismatic, central box (25) communicates.
  14. A ventilation installation according to Claim 12, characterised in that the central duct (35) is assembled from one or more stackable rings (31) having the connection pieces (26) for the extraction lines, and two plates (32) on the end faces forming the connection pieces (24).
  15. A ventilation installation according to Claim 11, characterised in that the central box (55) is constructed as a shallow prism, wherein the connection pieces for at least one central duct and for the ventilation branch pipes are disposed on the narrow sides of the central box.
  16. A ventilation installation according to Claim 11, characterised in that the central box (55), which is designed for connection to one central air supply duct and one central air extraction duct (10a, 10b), has a multiplicity of pairs (P) of connection pieces (26a, 26b), each provided with a closure element (27), which are each intended for the connection of an air supply branch pipe and an air extraction branch pipe, and that the two closure elements (27) of each pair (P) of connection pieces are connected to a common closure drive unit (28) for the adjustment of both closure elements in the same direction.
  17. A ventilation installation according to Claim 16, characterised in that the central box (55) is sub-divided into an air supply box (57) and an air extraction box (58) by means of a dividing wall (56).
  18. A ventilation installation according to Claim 16, characterised in that both connection pieces (26a, 26b) of each pair (P) are combined with the common closure drive unit (28) and the associated closure element (27) to form a structural unit (59).
EP90810611A 1989-08-25 1990-08-15 Ventilating installation Expired - Lifetime EP0414638B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH3090/89 1989-08-25
CH309089A CH678888A5 (en) 1989-08-25 1989-08-25 Ventilation plant with one ventilator serving each collection main
CH216490A CH682106A5 (en) 1990-06-28 1990-06-28 Ventilation plant with one ventilator serving each collection main
CH2164/90 1990-06-28

Publications (2)

Publication Number Publication Date
EP0414638A1 EP0414638A1 (en) 1991-02-27
EP0414638B1 true EP0414638B1 (en) 1993-05-12

Family

ID=25689693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810611A Expired - Lifetime EP0414638B1 (en) 1989-08-25 1990-08-15 Ventilating installation

Country Status (6)

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EP (1) EP0414638B1 (en)
AT (1) ATE89392T1 (en)
DE (1) DE59001429D1 (en)
DK (1) DK0414638T3 (en)
FI (1) FI93273C (en)
NO (1) NO175227C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417740A1 (en) * 1994-05-20 1995-11-23 Ebh Elektro Gmbh Ventilation of multistorey building
DE9408347U1 (en) * 1994-05-20 1994-08-11 EBH Elektro GmbH, 08132 Mülsen St Jacob Kit for a device for ventilation of rooms in multi-storey buildings
DE19852821C2 (en) * 1997-11-17 2001-08-02 Stk Steuerungs Und Kommunikati Controllable room ventilation valve
DE202004005164U1 (en) * 2004-03-30 2004-07-01 Pluggit International N.V., Curacao Air duct system
NL1033689C2 (en) * 2007-04-16 2008-12-16 Stork J E Ventilatoren Bv Method and installation for ventilating a number of rooms in a building.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT259822B (en) * 1965-04-22 1968-02-12 Schwarz Walter Ventilation system
AT324627B (en) * 1972-03-14 1975-09-10 Wasserfaller G SYSTEM FOR CENTRAL VENTILATION
DE2824157A1 (en) * 1978-06-02 1979-12-06 Bau & Lufttechnik 18017 House air conditioning system - incorporates throttles in housing unions serving individual rooms and actuated automatically

Also Published As

Publication number Publication date
FI93273C (en) 1995-03-10
EP0414638A1 (en) 1991-02-27
NO175227C (en) 1994-09-14
NO903734D0 (en) 1990-08-24
NO903734L (en) 1991-02-26
ATE89392T1 (en) 1993-05-15
FI93273B (en) 1994-11-30
DE59001429D1 (en) 1993-06-17
DK0414638T3 (en) 1993-10-04
NO175227B (en) 1994-06-06
FI904192A0 (en) 1990-08-24

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