EP2702333B1 - Method of operating a ventilation unit with mixing chamber - Google Patents

Method of operating a ventilation unit with mixing chamber Download PDF

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Publication number
EP2702333B1
EP2702333B1 EP11802331.6A EP11802331A EP2702333B1 EP 2702333 B1 EP2702333 B1 EP 2702333B1 EP 11802331 A EP11802331 A EP 11802331A EP 2702333 B1 EP2702333 B1 EP 2702333B1
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EP
European Patent Office
Prior art keywords
air
flap
mixing chamber
duct
case
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EP11802331.6A
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German (de)
French (fr)
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EP2702333A1 (en
Inventor
Albert Bauer
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Robert Bosch GmbH
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Robert Bosch GmbH
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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/04—Air-mixing units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/048—Systems in which all treatment is given in the central station, i.e. all-air systems with temperature control at constant rate of air-flow
    • F24F3/052—Multiple duct systems, e.g. systems in which hot and cold air are supplied by separate circuits from the central station to mixing chambers in the spaces to be conditioned
    • F24F3/0522—Multiple duct systems, e.g. systems in which hot and cold air are supplied by separate circuits from the central station to mixing chambers in the spaces to be conditioned in which warm or cold air from the central station is delivered via individual pipes to mixing chambers in the space to be treated, the cold air/warm air ratio being controlled by a thermostat in the space concerned, i.e. so-called Dual-duct System

Definitions

  • the invention relates to a method for operating a ventilation system with a mixing chamber according to the type specified in the preamble of claim 1 and a method for operating a ventilation system according to the type specified in the preamble of claim 10.
  • a mixing chamber of a ventilation system is fed by at least two air-supplying channels, which can supply, for example, fresh air and / or circulating air. Downstream of the mixing chamber is a fan, which generates a negative pressure in the mixing chamber.
  • the mixed air is supplied to the ventilator via a duct which discharges air from the mixing chamber, where it is further mixed and finally forwarded in the ventilation system as intended to the room to be ventilated or to the rooms to be ventilated. It is also known to supply the mixing chamber more than two channels.
  • Each feeding channel has in each case a supply air flap, which may have several damper blades.
  • the inlet flap or flap is the whole unit, which has at least one damper blade.
  • flap units For large feeding channels also several damper blades can be summarized to flap units.
  • the damper blades of a flap unit are coupled with respect to their drive with each other. These mutually coupled damper blades form a unit, each occupying the same opening positions.
  • flap units form a Zulufklappe. To distinguish this is the structural summary of damper blades in a frame. These are not flap units in the sense of the invention.
  • damper blades per air inlet flap or more flap units per air inlet flap are provided.
  • the damper blades are coupled together so that the damper blades each occupy a same open position.
  • the position of adjacent damper blades to each other is normally in opposite directions, ie the opening angles are the same, as they are coupled together via a shaft and / or a gear, but the orientation of the flaps and the folding direction is different.
  • the open positions of the inlet flaps of the two channels supplying air to the mixing chamber are interdependent. For example, there is an open position in an air-feeding channel of 90%, in the other air-feeding channel of 10%. Also possible is an opening position in both air-feeding channels of 100%.
  • the US 2006/0183419 A1 discloses a mixing chamber having a first inlet, a second inlet and an outlet. From the EP 1 096 208 A2 is a room ventilation system with two fresh air supply lines with fresh air outlet flaps known. The DE 1 454 652 discloses a mixing device.
  • the invention is based on the object to further develop a method for operating a ventilation system with a mixing chamber according to the type specified in the preamble of claim 1 or claim 10, that while avoiding the disadvantages mentioned the conditions for better mixing, but also for a higher efficiency of the ventilation system can be created.
  • the invention is based on the finding that the kinetic energy of the air supplied to the mixing chamber is utilized in order to ensure better mixing of the air in the mixing chamber. If necessary, now direct the damper blades or flap units, the supply air of one channel in the direction of the other channel. This then leads to a meeting of the air streams and to an improved mixing.
  • the flow resistance increases. If, for example, the air has the same temperatures, thus mixing is not desired, the damper blades are aligned in the sense of reducing the flow resistance. The flow resistance is thus changed depending on the subject so that the flaps are adjusted in the sense of better mixing or minimizing the flow resistance. This ensures an individual control of the damper blades or the flap units, which can increase the efficiency of the ventilation system in a simple manner.
  • damper blades can also be combined in a frame for structural reasons, which then also form a structural unit. However, as long as the damper blades are not drivingly coupled to each other in the unit, these are not damper units within the meaning of this patent application.
  • the damper blades in a structural unit are individually driven and driven according to the invention. If, on the other hand, flap units are provided which each have mutually coupled flap leaves, the flap units are individually controlled and driven.
  • the damper blades and / or the flap units are individually controlled.
  • the damper blades or damper units each have their own drive.
  • An individual opening position of the respective damper blades or the flap units with the damper blades is thus made possible.
  • the conditions are created to change the orientation of the damper blades as needed, namely from the point of view of a better mixing, an optimization of the flow resistance and / or the optimization of the noise.
  • the damper blades or the units of damper blades of the damper units are aligned such that the air supplied from one duct is directed in the direction of the other infeed duct.
  • the feature "towards the other feeding channel” is unique with respect to mutually angled feeding channels. With respect to opposing feeding channels, this feature is to be understood as meaning that the flap leaves are oriented away from the discharging channel for better mixing. The air is thus initially directed away from the laxative channel before the negative pressure forces the air into the laxative channel.
  • the need for a good mixing arises especially with different physical characteristics of the air, such as temperature, pressure, density, humidity, and / or different quality of air, such as oxygen content, CO 2 content, pollutant content, in the individual feeding channels.
  • the mixing is optimized by aligning the damper blades in these cases.
  • the individual damper blades and / or the units of damper blades of the damper units are aligned such that the air supplied via the feeding ducts is directed in the direction of the discharging duct.
  • This effect can be further improved according to an embodiment of the method according to the invention, if, depending on the orientation of the opening angle of the damper blades for guiding the air - energy conservation, mixing - a prioritized control of the individual damper blades or flap units with respect to the order of the first to be opened Damper blades or flap units of the respective supplying channels associated flaps is made.
  • damper blades or flap units can also be provided more than two supplying channels, in which case the damper blades or flap units are controlled accordingly. It is also possible that several laxative channels are provided.
  • air is supplied into the duct passing through a first feeding duct and via at least one further feeding duct. Air is removed from the mixing chamber via a discharging channel.
  • the air supply - volume control - into the mixing chamber is controlled from the feeding channels each by flaps, each with at least one damper blade.
  • the damper blade is in each case aligned in such a way that the air supplied in one feeding duct is directed in the direction of the other feeding duct.
  • the damper blade is then aligned so that the supplied air is directed in the direction of the laxative channel.
  • the damper blades are pivoted in different open positions and orientations.
  • the mixing optimized by alignment of the damper blades.
  • the energy savings by aligning the damper blades be optimized.
  • the orientation of the damper blades and the need are thus determined by the same or different physical characteristics and / or air qualities. Additionally or alternatively, the orientation of the damper blades can also take place as a function of optimization of the noise development in the mixing chamber.
  • FIG. 1 is a schematic view of a mixing chamber 10 of a ventilation system with two of the mixing chamber 10 air-supplying channels 12 and 14 and one of the mixing chamber 10 air-discharging channel 16 according to the prior art.
  • the first air-supplying channel 12 is arranged opposite the second air-supplying channel 14 at a right angle.
  • the laxative channel 16 is disposed opposite to the second afferent channel 14.
  • In between is the mixing chamber 10.
  • Each feeding channel 12, 14 has at its entrance 12a, 14a each have a supply air flap 18, 20.
  • Each supply air flap 18, 20 is provided with several via a transmission with each other coupled flap blades 22 and 24 respectively.
  • the damper blades 22, 24 are coupled to each other so that they each occupy the same opening angle in a supply air flap 18, 20. You can, however, like this in Fig. 1 is shown, adjacent to each other in opposite directions, however, have a same opening angle.
  • Fig. 1 have the damper blades 22 of the inlet flap 18 and the damper blades 24 of the inlet flap 20 to an opening angle of 45 °. This results in a mixing of the supplied air from the first supply air duct 12 with the air from the second supply air duct 14 of 50:50 in the mixing chamber 10.
  • the mixing chamber 10 is followed by a not shown here fan, which in the mixing chamber 10 and in the supplying channels 12 and 14 generates a negative pressure and the supplied air via the discharging channel 16 dissipates.
  • each damper blade 22 and 24 driven and driven individually. This results in a variety of applications for optimizing the mixing, but also to save energy in the ventilation system and thus opportunities to increase the efficiency of the ventilation system.
  • Fig. 2 is a schematic view of a mixing chamber 10 with the two of the mixing chamber 10 air-supplying channels 12 and 14 and the air from the mixing chamber 10 laxative channel 16 is shown.
  • the first feeding channel 12 is closed by the damper blades 22.
  • the damper blades 24 are completely open. Everybody will do it Damper blade 22 of the inlet flap 18 and each damper blade 24 of the inlet flap 20 driven by a separate motor and individually controlled.
  • each damper blade can be moved individually and occupy its own opening angle, as is the case with the following Fig. 3 to 8 becomes clear.
  • Fig. 3 is a mixed case shown.
  • 90% of the air from the supply channel 14 and 10% of the air from the feeding channel 12 of the mixing chamber 10 is supplied. These are volume ratios.
  • the damper blades 24 of the inlet flap 20 are all open and aligned in the direction of the first supply air duct 12.
  • the damper blades 22 are also aligned here in the direction of the other supply air duct, namely the second supply air duct 14.
  • the air flows from the channel 12 and out of the channel 14 to each other, it comes to turbulence and thus to an optimized mixing in the mixing chamber 10. Stratifications in the subsequent laxative channel 16 are thereby avoided.
  • Fig. 4 is shown a further mixing case, in which case about 60% from the first supply air duct 12 and 40% from the second supply air duct 14 of the mixing chamber 10 is supplied to air.
  • the damper blades 22, the inlet flap 18 and the damper blades 24 of the inlet flap 20 are provided with different opening angles, but all on the other supply air duct or its input 12a, 14a aligned to the mixing chamber 10.
  • Fig. 5 the case is shown that the inlet flap 20 is closed, that is, the damper blades 24 of the inlet flap 20 are all closed. In contrast, the damper blades 22 of the inlet flap 18 are all open at the same opening angle. Thus, only air from the first supply air channel 12 of the mixing chamber 10 is supplied and forwarded from there via the air discharge channel 16 in the ventilation system.
  • Fig. 6 the case is shown that in the mixing chamber is not the mixing in the foreground, but the largest possible reduction of the flow resistance, so an energy saving.
  • the damper blades 22 of the inlet flap 18 and the damper blades 24 of the inlet flap 20 are directed away from the respective other feeding channel 12 and 14, namely in the direction of the air laxative channel 16.
  • the flow resistance is significantly reduced, it comes to a optimized energy saving in the ventilation system.
  • FIGS. 7 and 8 a further variant of a ventilation system with mixing chamber 10 is shown.
  • the two feeding channels 12 and 14 are arranged opposite to each other.
  • the Fig. 7 shows here the mixing case and the Fig. 8 the energy-saving case.
  • Fig. 7 are the damper blades 22 of the inlet flap 18 on one side and the damper blades 24 of the inlet flap 20 on the other side of the discharging channel 16 aligned. This results in an inflow from the first supply air duct 12 and from the second supply air duct 14 in such a way that the flows are conducted away from the discharging duct 16, then meet one another and turbulences and thus optimized mixing in the mixing chamber 10 occur. The flow is in each case directed away from the discharging channel 16 through the damper blades 22 and 24.
  • a plurality of damper blades 22, 24 can also be combined into damper units.
  • Such flap units are provided in particular at feeding channels 12, 14 with large channel cross-sections.
  • a plurality of damper blades 22, 24 may be coupled to one another by flap units.
  • the resulting subunits are now controlled individually and have their own drive.
  • the units can thus move their damper blades 22, 24 individually from the other units and have for this purpose the corresponding drives with gears and / or servo motors. Otherwise, the units are controlled accordingly as shown by the Fig. 2 to 8 for the damper blades 22, 24 has been shown.
  • the mixing case of the damper blades 22, 24 or the units of damper blades 22, 24 depends on different physical characteristics of the supplied air, such as temperature, pressure, density, humidity or different quality of air, such as oxygen content, CO 2 content, pollutant content the individual feeding channels 12, 14 from. If there are differences, then the system for optimized mixing and thus the damper blades 22, 24 to adjust and align accordingly, as described above. However, should the physical characteristics or the quality of the air in the feeding channels be the same or at least approximately equal, then the damper blades 22, 24 are in the sense of energy optimization of the ventilation system, ie in the sense of alignment of the damper blades 22, 24 with the lowest possible flow resistance to control.
  • sensors are introduced in the feeding channels 12, 14, which interact with a central processing unit.
  • the central processing unit it is decided by comparing the determined physical characteristics of the air or the quality of the air quality, as the damper blades are aligned, ie in what mixing ratio, the air from the one feeding channel 12, 14 with the air from the other air feeding channel 12, 14 is mixed, but also whether there is a case of mixing or energy.
  • the damper blades 22, 24 are fully or only partially opened depending on the required amount of air from a feeding channel 12, 14. As has been stated, it is also possible for a partial opening of the damper blades 22, 24 that the damper blades 22, 24 have different opening angles.
  • damper blades 22, 24 are controlled by the central processing unit prioritized in order to achieve an optimized mixing or an optimized energy saving.
  • the individual damper blades 22, 24 or damper units are actuated with regard to the sequence of the damper blades 22, 24 or damper units which are to be opened first and the last to be opened.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)
  • Accessories For Mixers (AREA)
  • Multiple-Way Valves (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Lüftungsanlage mit einer Mischkammer gemäß der im Oberbegriff des Anspruches 1 angegebenen Art sowie ein Verfahren zum Betreiben einer Lüftungsanlage gemäß der im Oberbegriff des Anspruchs 10 angegebenen Art.The invention relates to a method for operating a ventilation system with a mixing chamber according to the type specified in the preamble of claim 1 and a method for operating a ventilation system according to the type specified in the preamble of claim 10.

Eine Mischkammer einer Lüftungsanlage wird von mindestens zwei luftzuführenden Kanälen gespeist, welche beispielsweise Frischluft und/oder Umluft zuführen können. Der Mischkammer nachgeschaltet ist ein Ventilator, der in der Mischkammer einen Unterdruck erzeugt. Über einen von der Mischkammer luftabführenden Kanal wird die gemischte Luft dem Ventilator zugeführt, dort weiter gemischt und schlussendlich in der Lüftungsanlage bestimmungsgemäß zu dem zu belüftenden Raum oder den zu belüftenden Räumen weitergeleitet. Es ist dabei auch bekannt, der Mischkammer mehr als zwei Kanäle zuzuführen.A mixing chamber of a ventilation system is fed by at least two air-supplying channels, which can supply, for example, fresh air and / or circulating air. Downstream of the mixing chamber is a fan, which generates a negative pressure in the mixing chamber. The mixed air is supplied to the ventilator via a duct which discharges air from the mixing chamber, where it is further mixed and finally forwarded in the ventilation system as intended to the room to be ventilated or to the rooms to be ventilated. It is also known to supply the mixing chamber more than two channels.

Jeder zuführende Kanal hat jeweils eine Zuluftklappe, die mehrere Klappenblätter aufweisen kann. Im Zusammenhang mit dieser Anmeldung ist die Zuluftklappe oder Klappe die ganze Einheit, welche zumindest ein Klappenblatt aufweist. Bei großen zuführenden Kanälen können auch mehrere Klappenblätter zu Klappeneinheiten zusammengefasst sein. Die Klappenblätter einer Klappeneinheit sind im Hinblick auf ihren Antrieb miteinander gekoppelt. Diese miteinander gekoppelten Klappenblätter bilden eine Einheit, die jeweils gleiche Öffnungsstellungen einnehmen. Mehrere Klappeneinheiten bilden dabei eine Zulufklappe. Zu unterscheiden hiervon ist die bauliche Zusammenfassung von Klappenblättern in einem Rahmen. Dies sind keine Klappeneinheiten im Sinne der Erfindung.Each feeding channel has in each case a supply air flap, which may have several damper blades. In the context of this application, the inlet flap or flap is the whole unit, which has at least one damper blade. For large feeding channels also several damper blades can be summarized to flap units. The damper blades of a flap unit are coupled with respect to their drive with each other. These mutually coupled damper blades form a unit, each occupying the same opening positions. Several flap units form a Zulufklappe. To distinguish this is the structural summary of damper blades in a frame. These are not flap units in the sense of the invention.

In der Regel sind mehrere Klappenblätter pro Zuluftklappe oder mehrere Klappeneinheiten je Zuluftklappe vorgesehen. Die Klappenblätter sind dabei so miteinander gekoppelt sind, dass die Klappenblätter jeweils eine gleiche Öffnungsstellung einnehmen. Die Stellung benachbarter Klappenblätter zueinander ist normalerweise gegenläufig, d. h. die Öffnungswinkel sind gleich, da sie über eine Welle und/oder über ein Getriebe miteinander gekoppelt sind, jedoch die Ausrichtung der Klappen und die Klapprichtung ist unterschiedlich.
Die Öffnungsstellungen der Zuluftklappen der beiden der Mischkammer luftzuführenden Kanäle sind voneinander abhängig. Beispielsweise gibt es eine Öffnungsstellung in einem Luft zuführenden Kanal von 90%, im anderen Luft zuführenden Kanal von 10%. Möglich ist auch eine Öffnungsstellung in beiden Luft zuführenden Kanälen von 100%.
Bei unterschiedlichen Öffnungsstellungen ist es das Ziel der Mischkammer die über die beiden Kanäle der Mischkammer zugeführte Luft miteinander zu vermischen. Es hat sich jedoch herausgestellt, dass trotz des durch einen der Mischkammer nachgeschalteten Ventilator erzeugten Unterdrucks in der Mischkammer es auch nach diesem Ventilator zu so genannten Schichtungen kommt, das heißt, dass es beispielsweise Temperaturunterschiede in der Luft im von der Mischkammer luftabführenden Kanal von bis zu 10° C und mehr geben kann. Dies tritt auch in Strömungsrichtung nach dem Ventilator auf, durch den die Luft der beiden Kanäle noch einmal gemischt wird. Gleiches gilt für die anderen physikalischen Kennwerte wie Feuchte, Druck, Dichte, aber auch für die Luftqualität, wie beispielsweise Sauerstoffgehalt, Schadstoffgehalt, CO2-Gehalt.
Es ist bekannt, dieses Problem durch feste Einbauten in der Mischkammer oder in dem von der Mischkammer abführenden Kanal, in der Regel der sogenannte Zuluftkanal, zu lösen, beispielsweise durch Lochbleche, Ablenkbleche, Induktionseinrichtungen und ähnliches. Ein Problem dieser festen Einbauten ist jedoch, dass der sich daraus ergebende erhöhte Strömungswiderstand permanent ist, unabhängig davon, ob es zu einer Schichtung kommen kann. Diese Einbauten vermindern permanent den Wirkungsgrad der Lüftungsanlage. Eine Schichtung in dem abführenden Kanal wird aber nur dann eintreten, wenn der Mischkammer Luft mit unterschiedlichen physikalischen Kennwerten und/oder Luftqualitäten zugeführt wird, beispielsweise Luft mit unterschiedlichen Temperaturen.In general, several damper blades per air inlet flap or more flap units per air inlet flap are provided. The damper blades are coupled together so that the damper blades each occupy a same open position. The position of adjacent damper blades to each other is normally in opposite directions, ie the opening angles are the same, as they are coupled together via a shaft and / or a gear, but the orientation of the flaps and the folding direction is different.
The open positions of the inlet flaps of the two channels supplying air to the mixing chamber are interdependent. For example, there is an open position in an air-feeding channel of 90%, in the other air-feeding channel of 10%. Also possible is an opening position in both air-feeding channels of 100%.
In different open positions, it is the aim of the mixing chamber to mix the air supplied via the two channels of the mixing chamber with each other. However, it has been found that, in spite of the negative pressure created in the mixing chamber by one of the mixing chambers, so-called stratifications occur even after this fan, that is, for example, temperature differences in the air in the air-discharging channel from the mixing chamber up to 10 ° C and more. This also occurs in the flow direction after the fan, through which the air of the two channels is mixed again. The same applies to the other physical characteristics such as humidity, pressure, density, but also to the air quality, such as oxygen content, pollutant content, CO 2 content.
It is known to solve this problem by fixed internals in the mixing chamber or in the channel leading away from the mixing chamber, usually the so-called supply air duct, for example by perforated plates, baffles, induction devices and the like. A problem with these fixed installations, however, is that the resulting increased flow resistance is permanent, regardless of whether stratification can occur. These installations permanently reduce the efficiency of the ventilation system. However, stratification in the outgoing channel will only occur if the mixing chamber is supplied with air having different physical characteristics and / or air qualities, for example air with different temperatures.

Die US 2006/0183419 A1 offenbart eine Mischkammer mit einem ersten Einlass, einem zweiten Einlass und einem Auslass. Aus der EP 1 096 208 A2 ist ein Raumlüftungssystem mit zwei Frischluftversorgungsleitungen mit Frischluftaustrittsklappen bekannt. Die DE 1 454 652 offenbart eine Mischvorrichtung.The US 2006/0183419 A1 discloses a mixing chamber having a first inlet, a second inlet and an outlet. From the EP 1 096 208 A2 is a room ventilation system with two fresh air supply lines with fresh air outlet flaps known. The DE 1 454 652 discloses a mixing device.

Der Erfindung liegt die Aufgabe zu Grunde, ein Verfahren zum Betreiben einer Lüftungsanlage mit einer Mischkammer gemäß der im Oberbegriff des Anspruches 1 oder Anspruches 10 angegebenen Art derart weiter zu bilden, dass unter Vermeidung der genannten Nachteile die Voraussetzungen für eine bessere Durchmischung, aber auch für einen höheren Wirkungsgrad der Lüftungsanlage geschaffen werden.The invention is based on the object to further develop a method for operating a ventilation system with a mixing chamber according to the type specified in the preamble of claim 1 or claim 10, that while avoiding the disadvantages mentioned the conditions for better mixing, but also for a higher efficiency of the ventilation system can be created.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 in Verbindung mit seinen Oberbegriffsmerkmalen und durch die kennzeichnenden Merkmale des Anspruchs 10 in Verbindung mit seinen Oberbegriffsmerkmalen gelöst.This object is achieved by the characterizing features of claim 1 in conjunction with its generic features and by the characterizing features of claim 10 in conjunction with its generic features.

Der Erfindung liegt dabei die Erkenntnis zu Grunde, dass die Bewegungsenergie der der Mischkammer zugeführten Luft ausgenutzt wird, um eine bessere Durchmischung der Luft in der Mischkammer zu gewährleisten. Im Bedarfsfall lenken nunmehr die Klappenblätter oder die Klappeneinheiten die Zuluft des einen Kanals in Richtung des anderen Kanals. Hierdurch kommt es dann zu einem Aufeinandertreffen der Luftströme und zu einer verbesserten Durchmischung. Der Strömungswiderstand erhöht sich. Weist die Luft beispielsweise gleiche Temperaturen auf, es ist somit keine Durchmischung gewünscht, werden die Klappenblätter im Sinne einer Verringerung des Strömungswiederstandes ausgerichtet. Der Strömungswiderstand wird also befarfsabhängig so verändert, dass die Klappen im Sinne einer besseren Durchmischung oder einer Minimierung des Strömungswiederstandes verstellt werden. Dies gewährleistet eine individuelle Ansteuerung der Klappenblätter bzw. der Klappeneinheiten, wodurch sich der Wirkungsgrad der Lüftungsanlage auf einfache Weise erhöhen lässt.The invention is based on the finding that the kinetic energy of the air supplied to the mixing chamber is utilized in order to ensure better mixing of the air in the mixing chamber. If necessary, now direct the damper blades or flap units, the supply air of one channel in the direction of the other channel. This then leads to a meeting of the air streams and to an improved mixing. The flow resistance increases. If, for example, the air has the same temperatures, thus mixing is not desired, the damper blades are aligned in the sense of reducing the flow resistance. The flow resistance is thus changed depending on the subject so that the flaps are adjusted in the sense of better mixing or minimizing the flow resistance. This ensures an individual control of the damper blades or the flap units, which can increase the efficiency of the ventilation system in a simple manner.

Bei Lüftungsanlagen mit großen Kanalquerschnitten können aus konstruktiven Gründen auch Klappenblätter in einem Rahmen zusammengefasst sein, die dann ebenfalls eine bauliche Einheiten bilden. Solange die Klappenblätter jedoch in der Einheit nicht antriebsmäßig mitteinander gekoppelt sind, sind dies keine Klappeneinheiten im Sinne dieser Patentanmeldung. Die Klappenblätter in einer baulichen Einheit werden nach der Erfindung individuell angesteuert und angetrieben. Sind demgegenüber Klappeneinheiten vorgesehen, die jeweils miteinander gekoppelte Klappenblätter aufweisen, werden die Klappeneinheiten individuell angesteuert und angetrieben.For ventilation systems with large channel cross-sections, damper blades can also be combined in a frame for structural reasons, which then also form a structural unit. However, as long as the damper blades are not drivingly coupled to each other in the unit, these are not damper units within the meaning of this patent application. The damper blades in a structural unit are individually driven and driven according to the invention. If, on the other hand, flap units are provided which each have mutually coupled flap leaves, the flap units are individually controlled and driven.

Insbesondere bei einer unterschiedlichen Zuluftverteilung zwischen zwei Luft zuführenden Kanälen ist es notwendig, dass die Zuluft mit dem geringeren Zuluftanteil in Richtung des anderen Zuluftkanals gelenkt wird, um die bessere Durchmischung zu gewährleisten.In particular, with a different supply air distribution between two air-supplying channels, it is necessary that the supply air is directed with the lower supply air in the direction of the other supply air duct to ensure better mixing.

Nach einem ersten Aspekt der Erfindung werden daher die Klappenblätter und/oder die Klappeneinheiten individuell angesteuert. Dafür weisen die Klappenblätter oder Klappeneinheiten jeweils einen eigenen Antrieb auf. Eine individuelle Öffnungsstellung der jeweiligen Klappenblätter oder der Klappeneinheiten mit den Klappenblättern wird damit ermöglicht. Hierdurch werden die Voraussetzungen geschaffen, um bedarfsabhängig die Ausrichtung der Klappenblätter zu verändern, und zwar unter dem Gesichtspunkt einer besseren Durchmischung, einer Optimierung des Strömungswiderstandes und/oder der Optimierung der Geräuschentwicklung.According to a first aspect of the invention, therefore, the damper blades and / or the flap units are individually controlled. For this purpose, the damper blades or damper units each have their own drive. An individual opening position of the respective damper blades or the flap units with the damper blades is thus made possible. As a result, the conditions are created to change the orientation of the damper blades as needed, namely from the point of view of a better mixing, an optimization of the flow resistance and / or the optimization of the noise.

Gemäß einer Ausführungsform des Verfahrens nach der Erfindung werden zur verbesserten Durchmischung die Klappenblätter oder die Einheiten von Klappenblättern der Klappeneinheiten so ausgerichtet, dass die aus einem Kanal zugeführte Luft in Richtung des anderen zuführenden Kanals gelenkt wird. Das Merkmal "In Richtung des anderen zuführenden Kanals" ist im Hinblick auf zueinander im Winkel angeordnete zuführende Kanäle eindeutig. Im Hinblick auf einander gegenüberliegende zuführende Kanäle ist unter diesem Merkmal zu verstehen, dass die Klappenblätter zum Zwecke einer besseren Durchmischung in Richtung von dem abführenden Kanal weg ausgerichtet sind. Die Luft wird somit zunächst von dem abführenden Kanal weg geleitet, bevor der Unterdruck die Luft in den abführenden Kanal zwingt.According to one embodiment of the method according to the invention, for improved mixing, the damper blades or the units of damper blades of the damper units are aligned such that the air supplied from one duct is directed in the direction of the other infeed duct. The feature "towards the other feeding channel" is unique with respect to mutually angled feeding channels. With respect to opposing feeding channels, this feature is to be understood as meaning that the flap leaves are oriented away from the discharging channel for better mixing. The air is thus initially directed away from the laxative channel before the negative pressure forces the air into the laxative channel.

Der Bedarf einer guten Durchmischung stellt sich vor allem bei unterschiedlichen physikalischen Kennwerten der Luft, wie Temperatur, Druck, Dichte, Feuchte, und/oder bei unterschiedlicher Qualität der Luft, wie Sauerstoffgehalt, CO2-Gehalt, Schadstoffgehalt, in den einzelnen zuführenden Kanälen. Insofern wird die Durchmischung durch Ausrichtung der Klappenblätter in diesen Fällen optimiert.The need for a good mixing arises especially with different physical characteristics of the air, such as temperature, pressure, density, humidity, and / or different quality of air, such as oxygen content, CO 2 content, pollutant content, in the individual feeding channels. In this respect, the mixing is optimized by aligning the damper blades in these cases.

Gemäß einer weiteren Ausführungsform des Verfahrens nach der Erfindung werden zur Energieeinsparung die einzelnen Klappenblätter und/oder die Einheiten von Klappenblätter der Klappeneinheiten so ausgerichtet werden, dass die über die zuführenden Kanäle zugeführte Luft in Richtung des abführenden Kanals gelenkt wird.According to a further embodiment of the method according to the invention, to save energy, the individual damper blades and / or the units of damper blades of the damper units are aligned such that the air supplied via the feeding ducts is directed in the direction of the discharging duct.

Der Bedarf einer Energieeinsparung stellt sich vor allem bei annähernd gleichen physikalischen Kennwerten der Luft, wie Temperatur, Druck, Dichte, Feuchte, und/oder bei annähernd gleicher Qualität der Luft, wie Sauerstoffgehalt, CO2-Gehalt, Schadstoffgehalt, in den einzelnen zuführenden Kanälen. Eine Durchmischung ist dann nicht erforderlich, da die physikalischen Kennwerte und/oder die Qualität der Luft aus den zuführenden Kanäle gleich ist. Insofern kann ohne weiteres nunmehr die Energieeinsparung durch Ausrichtung der Klappenblätter optimiert werden.The need for energy saving arises especially with approximately the same physical characteristics of the air, such as temperature, pressure, density, humidity, and / or at approximately the same quality of air, such as oxygen content, CO 2 content, pollutant content, in the individual feeding channels , Mixing is then not required because the physical characteristics and / or the quality of the air from the feeding channels is the same. In this respect, the energy savings can now be optimized by aligning the damper blades readily.

Um die Klappenblätter entsprechend für eine Durchmischung und oder für eine Energieeinsparung zu steuern, werden vorzugsweise die physikalischen Kennwerte der Luft in den zuführenden Kanälen und/oder die Qualität der Luft in den zuführenden Kanälen über Sensoren ermittelt.In order to control the damper blades accordingly for mixing and / or energy saving, it is preferable to determine the physical characteristics of the air in the feeding channels and / or the quality of the air in the feeding channels via sensors.

Gemäß einer weiteren Ausführungsform des Verfahrens nach der Erfindung wird in Abhängigkeit der benötigten Luftmenge eines zuführenden Kanals nur ein Teil der Klappenblätter und/oder der Klappeneinheiten mit ihren Klappenblättern, insbesondere mit unterschiedlichen Öffnungswinkeln, geöffnet. Hierdurch kann die Durchmischung auf der einen Seite aber auch die Energieeinsparung auf der anderen Seite optimiert werden.According to a further embodiment of the method according to the invention, only part of the damper blades and / or the damper units with their damper blades, in particular with different opening angles, are opened depending on the required air quantity of a feeding duct. As a result, the mixing on the one hand but also the energy savings on the other side can be optimized.

Dieser Effekt kann gemäß einer Ausführungsform des Verfahrens nach der Erfindung noch weiter verbessert werden, wenn je nach Ausrichtung des Öffnungswinkel der Klappenblätter zur Lenkung der Luft - Energieeinsparung, Durchmischung - eine priorisierte Ansteuerung der einzelnen Klappenblätter oder Klappeneinheiten im Hinblick auf die Reihenfolge der zuerst zu öffnenden Klappenblätter bzw. Klappeneinheiten der den jeweiligen zuführenden Kanälen zugeordneten Klappen vorgenommen wird.This effect can be further improved according to an embodiment of the method according to the invention, if, depending on the orientation of the opening angle of the damper blades for guiding the air - energy conservation, mixing - a prioritized control of the individual damper blades or flap units with respect to the order of the first to be opened Damper blades or flap units of the respective supplying channels associated flaps is made.

Es können auch mehr als zwei zuführende Kanäle vorgesehen sein, wobei dann die Klappenblätter oder Klappeneinheiten entsprechend gesteuert werden. Auch ist es möglich, dass mehrere abführende Kanäle vorgesehen sind.It can also be provided more than two supplying channels, in which case the damper blades or flap units are controlled accordingly. It is also possible that several laxative channels are provided.

Gemäß einem anderen Aspekt des Verfahrens zum Betreiben einer Lüftungsanlage mit einer Mischkammer wird in die über einen ersten zuführenden Kanal und über zumindest einen weiteren zuführenden Kanal Luft zugeführt. Aus der Mischkammer wird Luft über einen abführenden Kanal abgeführt. Die Luftzufuhr - Volumensteuerung - in die Mischkammer wird aus den zuführenden Kanälen jeweils über Klappen mit jeweils mindestens einem Klappenblatt gesteuert wird. Nach der Erfindung wird zur verbesserten Durchmischung jeweils das Klappenblatt so ausgerichtet, dass die in dem einen zuführenden Kanal zugeführte Luft in Richtung des anderen zuführenden Kanals gelenkt wird. Zur Energieeinsparung wird das Klappenblatt dann so ausgerichtet, dass die zugeführte Luft in Richtung des abführenden Kanals gelenkt wird. Je nach Bedarf - bessere Durchmischung oder Energieeinsparung - werden somit die Klappenblätter in unterschiedliche Öffnungsstellungen und Ausrichtungen geschwenkt.According to another aspect of the method for operating a ventilation system with a mixing chamber, air is supplied into the duct passing through a first feeding duct and via at least one further feeding duct. Air is removed from the mixing chamber via a discharging channel. The air supply - volume control - into the mixing chamber is controlled from the feeding channels each by flaps, each with at least one damper blade. According to the invention, for improved mixing, the damper blade is in each case aligned in such a way that the air supplied in one feeding duct is directed in the direction of the other feeding duct. To save energy, the damper blade is then aligned so that the supplied air is directed in the direction of the laxative channel. Depending on requirements - better mixing or energy saving - thus the damper blades are pivoted in different open positions and orientations.

Insbesondere wird bei unterschiedlichen physikalischen Kennwerten der Luft, wie Temperatur, Druck, Dichte, Feuchte, und/oder bei unterschiedlicher Qualität der Luft, wie Sauerstoffgehalt, CO2-Gehalt, Schadstoffgehalt, in den einzelnen zuführenden Kanälen die Durchmischung durch Ausrichtung der Klappenblätter optimiert.In particular, with different physical characteristics of the air, such as temperature, pressure, density, humidity, and / or with different quality of the air, such as oxygen content, CO 2 content, pollutant content in the individual feeding channels, the mixing optimized by alignment of the damper blades.

Demgegenüber kann bei annähernd gleichen physikalischen Kennwerten der Luft, wie Temperatur, Druck, Dichte, Feuchte, und/oder bei annähernd gleicher Qualität der Luft, wie Sauerstoffgehalt, CO2-Gehalt, Schadstoffgehalt, in den einzelnen zuführenden Kanälen die Energieeinsparung durch Ausrichtung der Klappenblätter optimiert werden. Die Ausrichtung der Klappenblätter und der Bedarf bestimmen sich somit aufgrund gleicher oder unterschiedlicher physikalischer Kennwerte und/oder Luftqualitäten. Ergänzend oder alternativ kann die Ausrichtung der Klappenblätter auch in Abhängigkeit einer Optimierung der Geräuschentwicklung in der Mischkammer erfolgen.In contrast, at approximately the same physical characteristics of the air, such as temperature, pressure, density, humidity, and / or at approximately the same quality of air, such as oxygen content, CO 2 content, pollutant content, in the individual feeding channels, the energy savings by aligning the damper blades be optimized. The orientation of the damper blades and the need are thus determined by the same or different physical characteristics and / or air qualities. Additionally or alternatively, the orientation of the damper blades can also take place as a function of optimization of the noise development in the mixing chamber.

Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit den in den Zeichnungen dargestellten Ausführungsbeispielen.Further advantages, features and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.

In der Beschreibung, in den Ansprüchen und in der Zeichnung werden die in der unten aufgeführten Liste der Bezugszeichen verwendeten Begriffe und zugeordneten Bezugszeichen verwendet. In der Zeichnung bedeutet:

Fig. 1
eine schematische Ansicht auf eine Mischkammer mit zwei der Mischkammer Luft zuführenden Kanälen und einem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach dem Stand der Technik.
Fig. 2
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass keine Luft aus dem zweiten zuführenden Kanal der Mischkammer zugeführt wird;
Fig. 3
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass aus dem zweiten Luft der Mischkammer zuführenden Kanal nur ein Teil der Mischkammer zugeführt wird und eine gute Durchmischung der Luft aus dem ersten und zweiten Kanal in der Mischkammer stattfinden soll;
Fig. 4
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass aus dem ersten und zweiten Luft der Mischkammer zuführenden Kanal nur ein Teil der Mischkammer zugeführt wird und eine gute Durchmischung der Luft aus dem ersten und zweiten Kanal in der Mischkammer stattfinden soll;
Fig. 5
eine schematische Ansicht auf eine Mischkammer mit zwei einer Mischkammer Luft zuführenden Kanälen und einem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass keine Luft aus dem ersten zuführenden Kanal der Mischkammer zugeführt wird;
Fig. 6
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass aus dem ersten und zweiten Luft der Mischkammer zuführenden Kanal nur ein Teil der Mischkammer zugeführt wird und ein geringer Strömungswiderstand für die der Mischkammer zuführende Luft und somit eine Energieeinsparung stattfinden soll;
Fig. 7
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass aus dem ersten und zweiten Luft der Mischkammer zuführenden Kanal nur ein Teil der Mischkammer zugeführt wird und eine gute Durchmischung der Luft aus dem ersten und zweiten Kanal in der Mischkammer stattfinden soll, wobei die zuführenden Kanäle gegenüberliegend angeordnet sind.
Fig. 8
eine schematische Ansicht auf eine Mischkammer mit den zwei der Mischkammer Luft zuführenden Kanälen und dem von der Mischkammer Luft abführenden Kanal mit einer Steuerung der Klappenblätter nach der Erfindung für den Fall, dass aus dem ersten und zweiten Luft der Mischkammer zuführenden Kanal nur ein Teil der Mischkammer zugeführt wird und ein geringer Strömungswiderstand für die der Mischkammer zuführende Luft und somit eine Energieeinsparung stattfinden soll, wobei die zuführenden Kanäle gegenüberliegend angeordnet sind.
In the description, the claims, and the drawing, the terms and associated reference numerals used in the list of reference numerals below are used. In the drawing:
Fig. 1
a schematic view of a mixing chamber with two of the mixing chamber air-supplying channels and an air-discharging from the mixing chamber channel with a control of the damper blades according to the prior art.
Fig. 2
a schematic view of a mixing chamber with the two of the mixing chamber air-supplying channels and the air-discharging from the mixing chamber channel with a control of the damper blades according to the invention in the event that no air from the second feeding channel of the mixing chamber is supplied;
Fig. 3
a schematic view of a mixing chamber with the two mixing chamber air-supplying channels and the air from the mixing chamber-discharging duct with a control of the damper blades according to the invention for the case that from the second air of the mixing chamber supplying channel only a part of the mixing chamber is supplied and good mixing of the air from the first and second channels in the mixing chamber is to take place;
Fig. 4
a schematic view of a mixing chamber with the two mixing chamber air-supplying channels and the air from the mixing chamber-discharging duct with a control of the damper blades according to the invention in the event that from the first and second air of the mixing chamber supplying channel only a part of the mixing chamber is supplied and should take place a good mixing of the air from the first and second channel in the mixing chamber;
Fig. 5
a schematic view of a mixing chamber with two of a mixing chamber air-supplying channels and an air-discharging from the mixing chamber channel with a control of the damper blades according to the invention in the event that no air from the first feeding channel of the mixing chamber is supplied;
Fig. 6
a schematic view of a mixing chamber with the two of the mixing chamber air-supplying channels and the air-discharging from the mixing chamber channel with a control of the damper blades according to the invention for the case that from the first and second air of the mixing chamber feeding channel only a part of the mixing chamber is supplied and a low flow resistance for the mixing chamber supplying air and thus an energy saving to take place;
Fig. 7
a schematic view of a mixing chamber with the two of the mixing chamber air-supplying channels and the air-discharging from the mixing chamber channel with a control of the damper blades according to the invention for the case that from the first and second air of the mixing chamber feeding channel only a part of the mixing chamber is supplied and a good mixing of the air from the first and second channel is to take place in the mixing chamber, wherein the feeding channels are arranged opposite one another.
Fig. 8
a schematic view of a mixing chamber with the two of the mixing chamber air-supplying channels and the air-discharging from the mixing chamber channel with a control of the damper blades according to the invention for the case that from the first and second air of the mixing chamber feeding channel only a part of the mixing chamber is supplied and a low flow resistance for the mixing chamber supplying air and thus an energy saving to take place, the feeding channels are arranged opposite one another.

In Fig. 1 ist eine schematische Ansicht auf eine Mischkammer 10 einer Lüftungsanlage mit zwei der Mischkammer 10 Luft zuführenden Kanälen 12 und 14 und einem von der Mischkammer 10 Luft abführenden Kanal 16 nach dem Stand der Technik dargestellt. Der erste Luft zuführende Kanal 12 ist gegenüber dem zweiten Luft zuführenden Kanal 14 in einem rechten Winkel angeordnet. Der abführende Kanal 16 ist gegenüberliegend dem zweiten zuführenden Kanal 14 angeordnet. Dazwischen befindet sich die Mischkammer 10. Jeder zuführende Kanal 12, 14 weist an seinem Eingang 12a, 14a jeweils eine Zuluftklappe 18, 20 auf. Jede Zuluftklappe 18, 20 ist mit mehreren über ein Getriebe mit einander gekoppelter Klappenblätter 22 bzw. 24 versehen. Die Klappenblätter 22, 24 sind so miteinander gekoppelt, dass sie jeweils gleiche Öffnungswinkel in einer Zuluftklappe 18, 20 einnehmen. Sie können jedoch, wie dies in Fig. 1 dargestellt ist, benachbart zueinander gegenläufig ausgerichtet sein, jedoch einen gleichen Öffnungswinkel aufweisen.In Fig. 1 is a schematic view of a mixing chamber 10 of a ventilation system with two of the mixing chamber 10 air-supplying channels 12 and 14 and one of the mixing chamber 10 air-discharging channel 16 according to the prior art. The first air-supplying channel 12 is arranged opposite the second air-supplying channel 14 at a right angle. The laxative channel 16 is disposed opposite to the second afferent channel 14. In between is the mixing chamber 10. Each feeding channel 12, 14 has at its entrance 12a, 14a each have a supply air flap 18, 20. Each supply air flap 18, 20 is provided with several via a transmission with each other coupled flap blades 22 and 24 respectively. The damper blades 22, 24 are coupled to each other so that they each occupy the same opening angle in a supply air flap 18, 20. You can, however, like this in Fig. 1 is shown, adjacent to each other in opposite directions, however, have a same opening angle.

Im vorliegenden Beispiel gemäß Fig. 1 weisen die Klappenblätter 22 der Zuluftklappe 18 als auch die Klappenblätter 24 der Zuluftklappe 20 einen Öffnungswinkel von 45 ° auf. Es ergibt sich eine Vermischung der zugeführten Luft aus dem ersten Zuluftkanal 12 mit der Luft aus dem zweiten Zuluftkanal 14 von 50:50 in der Mischkammer 10. Der Mischkammer 10 ist ein hier nicht dargestellter Ventilator nachgeschaltet, der in der Mischkammer 10 und auch in den zuführenden Kanälen 12 und 14 einen Unterdruck erzeugt und die zugeführte Luft über den abführenden Kanal 16 abführt.In the present example according to Fig. 1 have the damper blades 22 of the inlet flap 18 and the damper blades 24 of the inlet flap 20 to an opening angle of 45 °. This results in a mixing of the supplied air from the first supply air duct 12 with the air from the second supply air duct 14 of 50:50 in the mixing chamber 10. The mixing chamber 10 is followed by a not shown here fan, which in the mixing chamber 10 and in the supplying channels 12 and 14 generates a negative pressure and the supplied air via the discharging channel 16 dissipates.

Es können auch in den zuführenden Kanälen 12, 14 Ventilatoren eingebaut sein, die die zugeführte Luft in die Mischkammer 10 drückt und aus dieser wieder heraus in den abführenden Kanal 16.It can also be installed in the feeding channels 12, 14 fans, which presses the supplied air into the mixing chamber 10 and out of this back into the laxative channel 16th

Beispielsweise bei großen Temperaturunterschieden der zugeführten Luft im ersten Zuluftkanal 12 gegenüber dem zweiten Zuluftkanal 14 kann es zu sogenannten Schichtungen in dem Luft aus der Mischkammer abführenden Kanal 16 kommen, die auch nach Passieren des der Mischkammer 10 nachgeschalteten Ventilators noch erhalten bleiben. Derartige Schichtungen können Temperaturunterschiede von beispielsweise 10 °C und mehr aufweisen, was nicht erwünscht ist.For example, with large differences in temperature of the supplied air in the first supply air duct 12 relative to the second supply air duct 14 may lead to so-called stratification in the air from the mixing chamber laxative channel 16, which remain even after passing through the mixing chamber 10 downstream fan. Such laminations may have temperature differences of, for example, 10 ° C and more, which is undesirable.

Nach der Erfindung wird daher jedes Klappenblatt 22 bzw. 24 individuell angetrieben und angesteuert. Hierdurch ergeben sich vielfältige Anwendungsmöglichkeiten zur Optimierung der Durchmischung, aber auch zur Energieeinsparung in der Lüftungsanlage und somit Möglichkeiten zur Erhöhung des Wirkungsgrades der Lüftungsanlage.According to the invention, therefore, each damper blade 22 and 24 driven and driven individually. This results in a variety of applications for optimizing the mixing, but also to save energy in the ventilation system and thus opportunities to increase the efficiency of the ventilation system.

In Fig. 2 ist in einer schematischen Ansicht eine Mischkammer 10 mit den zwei der Mischkammer 10 Luft zuführenden Kanälen 12 und 14 und dem von der Mischkammer 10 Luft abführenden Kanal 16 dargestellt. Im vorliegenden Fall ist der erste zuführende Kanal 12 durch die Klappenblätter 22 geschlossen. Wohingegen die Klappenblätter 24 vollkommen geöffnet sind. Dabei wird jedes Klappenblatt 22 der Zuluftklappe 18 und jedes Klappenblatt 24 der Zuluftklappe 20 von einem eigenen Motor angetrieben und individuell angesteuert. Somit kann jedes Klappenblatt individuell bewegt und einen eigenen Öffnungswinkel einnehmen, wie es an Hand der folgenden Fig. 3 bis 8 deutlich wird.In Fig. 2 is a schematic view of a mixing chamber 10 with the two of the mixing chamber 10 air-supplying channels 12 and 14 and the air from the mixing chamber 10 laxative channel 16 is shown. In the present case, the first feeding channel 12 is closed by the damper blades 22. Whereas the damper blades 24 are completely open. Everybody will do it Damper blade 22 of the inlet flap 18 and each damper blade 24 of the inlet flap 20 driven by a separate motor and individually controlled. Thus, each damper blade can be moved individually and occupy its own opening angle, as is the case with the following Fig. 3 to 8 becomes clear.

In Fig. 3 ist ein Durchmischungsfall dargestellt. Hierbei wird beispielsweise 90% der Luft aus dem zuführenden Kanal 14 und 10% der Luft aus dem zuführenden Kanal 12 der Mischkammer 10 zugeführt. Es handelt sich hierbei um Volumenverhältnisse. Hierfür sind die Klappenblätter 24 der Zuluftklappe 20 alle geöffnet und in Richtung auf den ersten Zuluftkanal 12 ausgerichtet. Bei der Zuluftklappe 18 ist nur ein Teil der Klappenblätter 22 geöffnet, jedoch mit unterschiedlichem Öffnungswinkel. Jedoch sind die Klappenblätter 22 auch hier in Richtung auf den anderen Zuluftkanal, nämlich dem zweiten Zuluftkanal 14 ausgerichtet. Hierdurch werden die Luftströme aus dem Kanal 12 und aus dem Kanal 14 aufeinander geleitet, es kommt zu Verwirbelungen und somit zu einer optimierten Vermischung in der Mischkammer 10. Schichtungen im nachfolgenden abführenden Kanal 16 werden dadurch vermieden.In Fig. 3 is a mixed case shown. Here, for example, 90% of the air from the supply channel 14 and 10% of the air from the feeding channel 12 of the mixing chamber 10 is supplied. These are volume ratios. For this purpose, the damper blades 24 of the inlet flap 20 are all open and aligned in the direction of the first supply air duct 12. In the supply air flap 18, only a part of the damper blades 22 is open, but with different opening angle. However, the damper blades 22 are also aligned here in the direction of the other supply air duct, namely the second supply air duct 14. As a result, the air flows from the channel 12 and out of the channel 14 to each other, it comes to turbulence and thus to an optimized mixing in the mixing chamber 10. Stratifications in the subsequent laxative channel 16 are thereby avoided.

In Fig. 4 ist ein weiterer Durchmischungsfall gezeigt, wobei in diesem Fall ungefähr 60% aus dem ersten Zuluftkanal 12 und 40% aus dem zweiten Zuluftkanal 14 der Mischkammer 10 an Luft zugeführt wird. In diesem Fall sind die Klappenblätter 22, der Zuluftklappe 18 als auch die Klappenblätter 24 der Zuluftklappe 20 mit unterschiedlichen Öffnungswinkeln versehen, jedoch alle auf den jeweils anderen Zuluftkanal bzw. deren Eingang 12a, 14a zur Mischkammer 10 ausgerichtet.In Fig. 4 is shown a further mixing case, in which case about 60% from the first supply air duct 12 and 40% from the second supply air duct 14 of the mixing chamber 10 is supplied to air. In this case, the damper blades 22, the inlet flap 18 and the damper blades 24 of the inlet flap 20 are provided with different opening angles, but all on the other supply air duct or its input 12a, 14a aligned to the mixing chamber 10.

In Fig. 5 ist der Fall dargestellt, dass die Zuluftklappe 20 geschlossen ist, das heißt, die Klappenblätter 24 der Zuluftklappe 20 sind alle geschlossen. Dem gegenüber sind die Klappenblätter 22 der Zuluftklappe 18 alle in einem gleichen Öffnungswinkel geöffnet. Es wird somit nur Luft aus dem ersten Zuluftkanal 12 der Mischkammer 10 zugeführt und von dort über den Luft abführenden Kanal 16 in der Lüftungsanlage weitergeleitet.In Fig. 5 the case is shown that the inlet flap 20 is closed, that is, the damper blades 24 of the inlet flap 20 are all closed. In contrast, the damper blades 22 of the inlet flap 18 are all open at the same opening angle. Thus, only air from the first supply air channel 12 of the mixing chamber 10 is supplied and forwarded from there via the air discharge channel 16 in the ventilation system.

In Fig. 6 ist der Fall dargestellt, dass in der Mischkammer nicht die Durchmischung im Vordergrund steht, sondern eine möglichst große Reduzierung des Strömungswiederstandes, also eine Energieeinsparung. In diesem Fall sind die Klappenblätter 22 der Zuluftklappe 18 und die Klappenblätter 24 der Zuluftklappe 20 von dem jeweils anderen zuführenden Kanal 12 bzw. 14 weg gerichtet, nämlich in Richtung des Luft abführenden Kanals 16. Hierdurch wird der Strömungswiederstand erheblich verringert, es kommt zu einer optimierten Energieeinsparung in der Lüftungsanlage.In Fig. 6 the case is shown that in the mixing chamber is not the mixing in the foreground, but the largest possible reduction of the flow resistance, so an energy saving. In this case, the damper blades 22 of the inlet flap 18 and the damper blades 24 of the inlet flap 20 are directed away from the respective other feeding channel 12 and 14, namely in the direction of the air laxative channel 16. As a result, the flow resistance is significantly reduced, it comes to a optimized energy saving in the ventilation system.

In Fig. 7 und 8 ist eine weitere Variante einer Lüftungsanlage mit Mischkammer 10 dargestellt. In diesem Fall sind die beiden zuführenden Kanäle 12 und 14 einander gegenüberliegend angeordnet. Die Fig. 7 zeigt hierbei den Durchmischungsfall und die Fig. 8 den Energiesparfall.In FIGS. 7 and 8 a further variant of a ventilation system with mixing chamber 10 is shown. In this case, the two feeding channels 12 and 14 are arranged opposite to each other. The Fig. 7 shows here the mixing case and the Fig. 8 the energy-saving case.

In Fig. 7 sind die Klappenblätter 22 der Zuluftklappe 18 auf der einen Seite und die Klappenblätter 24 der Zuluftklappe 20 auf der anderen Seite von dem abführenden Kanal 16 weg ausgerichtet. Hierdurch kommt es zu einem Zuströmen aus dem ersten Zuluftkanal 12 und aus dem zweiten Zuluftkanal 14 derart, dass die Strömungen von dem abführenden Kanal 16 weggeleitet werden, dann aufeinander treffen und es zu Verwirbelungen und somit zu einer optimierten Durchmischung in der Mischkammer 10 kommt. Die Strömung wird dabei jeweils von dem abführenden Kanal 16 durch die Klappenblätter 22 und 24 weggeleitet.In Fig. 7 are the damper blades 22 of the inlet flap 18 on one side and the damper blades 24 of the inlet flap 20 on the other side of the discharging channel 16 aligned. This results in an inflow from the first supply air duct 12 and from the second supply air duct 14 in such a way that the flows are conducted away from the discharging duct 16, then meet one another and turbulences and thus optimized mixing in the mixing chamber 10 occur. The flow is in each case directed away from the discharging channel 16 through the damper blades 22 and 24.

Anders ist die Situation in Fig. 8, hier sind die Klappenblätter 22 der Zuluftklappe 18 und die Klappenblätter 24 der Zuluftklappe 20 in Richtung auf den abführenden Kanal 16 ausgerichtet. Hierdurch wird der Strömungswiederstand vermindert und dadurch die Lüftungsanlage im Sinne einer Energieeinsparung optimiert.The situation is different in Fig. 8 , here are the damper blades 22 of the inlet flap 18 and the damper blades 24 of the inlet flap 20 aligned in the direction of the laxative channel 16. As a result, the flow resistance is reduced, thereby optimizing the ventilation system in terms of energy savings.

Gemäß einer hier nicht dargestellten Ausführungsform der Erfindung können auch mehrere Klappenblätter 22, 24 zu Klappeneinheiten zusammengefasst werden. Derartige Klappeneinheiten sind insbesondere bei zuführenden Kanälen 12, 14 mit großen Kanalquerschnitten vorgesehen. Dabei können mehrere Klappenblätter 22, 24 von Klappeneinheiten untereinander miteinander gekoppelt sein. Die dadurch entstehenden Untereinheiten werden nunmehr individuell angesteuert und weisen einen eigenen Antrieb auf. Die Einheiten können somit ihre Klappenblätter 22, 24 jeweils individuell von den anderen Einheiten bewegen und weisen hierfür die entsprechenden Antriebe mit Getrieben und/oder Stellmotoren auf. Ansonsten werden die Einheiten entsprechend gesteuert wie dies anhand der Fig. 2 bis 8 für die Klappenblätter 22, 24 dargestellt wurde.According to an embodiment of the invention not shown here, a plurality of damper blades 22, 24 can also be combined into damper units. Such flap units are provided in particular at feeding channels 12, 14 with large channel cross-sections. In this case, a plurality of damper blades 22, 24 may be coupled to one another by flap units. The resulting subunits are now controlled individually and have their own drive. The units can thus move their damper blades 22, 24 individually from the other units and have for this purpose the corresponding drives with gears and / or servo motors. Otherwise, the units are controlled accordingly as shown by the Fig. 2 to 8 for the damper blades 22, 24 has been shown.

Bei zuführenden Kanälen 12, 14 mit einem kleinen Durchmesser und nur einem Klappenblatt 22, 24 ist diese so ausgebildet, dass für den Durchmischungsfall das Klappenblatt 22, 24 der einen Zuluftklappe 18, 20 des einen zuführenden Kanals 12, 14 in Richtung auf den anderen zuführenden Kanal 12, 14 ausgerichtet werden kann und für den Energiesparfall in Richtung auf den abführenden Kanal 16. Hierdurch kann die erfinderische Idee auch bei Lüftungsanlagen mit einem Klappenblatt 22, 24 ohne weiteres einfach umgesetzt werden.With feeding channels 12, 14 with a small diameter and only one damper blade 22, 24, this is designed so that for the mixing case, the damper blade 22, 24 of a supply air flap 18, 20 of the one feeding channel 12, 14 in the direction of the other supplying Channel 12, 14 can be aligned and for energy efficiency in the direction of the laxative channel 16. This allows the inventive idea even with ventilation systems with a damper blade 22, 24 easily be implemented easily.

Grundsätzlich hängt der Durchmischungsfall der Klappenblätter 22, 24 oder der Einheiten von Klappenblättern 22, 24 von unterschiedlichen physikalischen Kennwerten der zugeführten Luft, wie Temperatur, Druck, Dichte, Feuchte oder von unterschiedlicher Qualität der Luft, wie Sauerstoffgehalt, CO2-Gehalt, Schadstoffgehalt in den einzelnen zuführenden Kanälen 12, 14 ab. Gibt es hierbei Unterschiede, so ist die Anlage für eine optimierte Durchmischung und somit die Klappenblätter 22, 24 entsprechend einzustellen und auszurichten, wie dies oben beschrieben wurde. Sollten jedoch die physikalischen Kennwerte oder die Qualität der Luft in den zuführenden Kanälen gleich oder zumindest annähernd gleich sein, so sind die Klappenblätter 22, 24 im Sinne einer Energieoptimierung der Lüftungsanlage, also im Sinne einer Ausrichtung der Klappenblätter 22, 24 mit einem möglichst geringen Strömungswiederstand zu steuern.Basically, the mixing case of the damper blades 22, 24 or the units of damper blades 22, 24 depends on different physical characteristics of the supplied air, such as temperature, pressure, density, humidity or different quality of air, such as oxygen content, CO 2 content, pollutant content the individual feeding channels 12, 14 from. If there are differences, then the system for optimized mixing and thus the damper blades 22, 24 to adjust and align accordingly, as described above. However, should the physical characteristics or the quality of the air in the feeding channels be the same or at least approximately equal, then the damper blades 22, 24 are in the sense of energy optimization of the ventilation system, ie in the sense of alignment of the damper blades 22, 24 with the lowest possible flow resistance to control.

Um die einzelnen Fälle jeweils zu erfassen, sind in den zuführenden Kanälen 12, 14 jeweils hier nicht dargestellte Sensoren eingebracht, die mit einer zentralen Recheneinheit zusammen wirken. In der zentralen Recheneinheit wird durch Vergleich der ermittelten physikalischen Kennwerte der Luft oder der Kennwerte für die Qualität der Luft entschieden, wie die Klappenblätter ausgerichtet werden, also in welchem Mischungsverhältnis die Luft aus dem einen zuführenden Kanal 12, 14 mit der Luft aus dem anderen Luft zuführenden Kanal 12, 14 gemischt wird, aber auch ob ein Durchmischungsfall oder Energiesparfall vorliegt.In order to detect the individual cases in each case, sensors (not shown here) are introduced in the feeding channels 12, 14, which interact with a central processing unit. In the central processing unit it is decided by comparing the determined physical characteristics of the air or the quality of the air quality, as the damper blades are aligned, ie in what mixing ratio, the air from the one feeding channel 12, 14 with the air from the other air feeding channel 12, 14 is mixed, but also whether there is a case of mixing or energy.

Die Klappenblätter 22, 24 werden in Abhängigkeit der benötigten Luftmenge aus einem zuführenden Kanal 12, 14 vollständig oder nur zum Teil geöffnet. Wie ausgeführt wurde, ist es bei einer Teilöffnung der Klappenblätter 22, 24 auch möglich, dass die Klappenblätter 22, 24 unterschiedliche Öffnungswinkel aufweisen.The damper blades 22, 24 are fully or only partially opened depending on the required amount of air from a feeding channel 12, 14. As has been stated, it is also possible for a partial opening of the damper blades 22, 24 that the damper blades 22, 24 have different opening angles.

Des Weiteren werden die Klappenblätter 22, 24 durch die zentrale Recheneinheit priorisiert angesteuert, um eine optimierte Durchmischung oder eine optimierte Energieeinsparung zu erreichen. Dabei werden die einzelnen Klappenblätter 22, 24 oder Klappeneinheiten im Hinblick auf die Reihenfolge der zuerst zu öffneten und der zuletzt zu öffnenden Klappenblätter 22, 24 bzw. Klappeneinheiten angesteuert.Furthermore, the damper blades 22, 24 are controlled by the central processing unit prioritized in order to achieve an optimized mixing or an optimized energy saving. In this case, the individual damper blades 22, 24 or damper units are actuated with regard to the sequence of the damper blades 22, 24 or damper units which are to be opened first and the last to be opened.

Unabhängig von der Luftqualität und den physikalischen Kennwerten ist es nunmehr auch möglich, die Klappenblätter 22, 24 oder die Klappeneinheiten im Sinne einer optimierten Geräuschentwicklung zu steuern. Eine derartige Steuerung ist zum einen vom Luftbedarf, von den physikalischen Kennwerten, von der Luftqualität, vom Mischbedarf und Energiesparbedarf, von auftretendem Strömungswiederstand durch die Stellung der Klappenblätter als auch von der Ausrichtung der Klappenblätter abhängig. Je nach Anwendungsfall ergeben sich im Sinne einer Geräuschoptimierung unterschiedliche Ausrichtungen und Klappenstellungen der jeweiligen Zuluftklappen.Regardless of the air quality and the physical characteristics, it is now also possible to control the damper blades 22, 24 or the flap units in the sense of optimized noise development. Such a control is on the one hand from the air requirement, from the physical characteristics, Depending on the air quality, the mixing needs and energy saving requirements, the occurrence of flow resistance by the position of the damper blades as well as the orientation of the damper blades. Depending on the application arise in the sense of noise optimization different orientations and flap positions of the respective inlet flaps.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Mischkammermixing chamber
1212
erster Luft zuführender Kanalfirst air-feeding channel
12a12a
Eingang zur MischkammerEntrance to the mixing chamber
1414
zweiter Luft zuführender Kanalsecond air feeding channel
14a14a
Eingang zur MischkammerEntrance to the mixing chamber
1818
Zuluftklappe des ersten zuführenden KanalsSupply air flap of the first supply channel
2020
Zuluftklappe des zweiten zuführenden KanalsSupply air flap of the second supply channel
2222
Klappenblatt der Zuluftklappe 18Damper blade of the inlet flap 18
2424
Klappenblatt der Zuluftklappe 20Damper blade of the inlet flap 20

Claims (13)

  1. Method for operating a ventilation system with a mixing chamber (10) into which air is supplied via a first supplying duct (12) and via at least one further supplying duct (14), air is removed from the mixing chamber (10) via a removing duct (16), and the supply of air - volume control - into the mixing chamber (10) from the supplying ducts (12, 14) is controlled in each case via flaps (18, 20) having a plurality of flap leaves (22, 24) and/or a plurality of flap units each having a plurality of intercoupled flap leaves (22, 24), characterized in that the flap leaves (22, 24) and/or the flap units of a flap (18, 20) are activated individually such that an individual opening position having a different opening angle of the respective flap leaves (22, 24) or of the flap units with the flap leaves (22, 24) is made possible.
  2. Method according to Claim 1, characterized in that, for the improved thorough mixing, the flap leaves (22, 24) or the units of flap leaves (22, 24) of the flap units are oriented in such a manner that the air supplied in the one supplied duct (12, 14) is guided in the direction of the other supplying duct (14 or 12).
  3. Method according to Claim 2, characterized in that, in the case of different physical characteristic values of the air, such as temperature, pressure, density and moisture, and/or in the case of a different quality of the air, such as oxygen content, CO2 content and pollutant content, in the individual supplying ducts (12, 14), the thorough mixing is optimized by orientation of the flap leaves (22, 24).
  4. Method according to one of the preceding claims, characterized in that, in order to save energy, the flap leaves (22, 24) and/or the units of flap leaves (22, 24) of the flap units are oriented in such a manner that the supplied air is guided in the direction of the removing duct (16).
  5. Method according to Claim 4, characterized in that, in the case of approximately identical physical characteristic values of the air, such as temperature, pressure, density and moisture, and/or in the case of an approximately identical quality of the air, such as oxygen content, CO2 content and pollutant content, in the individual supplying ducts (12, 14), the saving on energy is optimized by orientation of the flap leaves (22, 24).
  6. Method according to one of the preceding claim, characterized in that the physical characteristic values of the air in the supplying ducts (12, 14) and/or the quality of the air in the supplying ducts (12, 14) are/is determined by sensors.
  7. Method according to one of the preceding claims, characterized in that, depending on the quantity of air required from a supplying duct (12, 14), only some of the flap leaves (22, 24) and/or of the flap units with the flap leaves (22, 24) thereof are opened.
  8. Method according to Claim 7, characterized in that, in the event of some of the flap leaves (22, 24) being opened, said flap leaves have different opening angles.
  9. Method according to one of the preceding claims, characterized in that, depending on the orientation of the opening angle of the flap leaves (22, 24) for guiding the air - saving on energy, thorough mixing - a prioritized activation of the individual flap leaves (22, 24) or flap units in respect of the sequence of flap leaves (22, 24) or flap units to be opened first is undertaken.
  10. Method for operating a ventilation system with a mixing chamber (10) into which air is supplied via a first supplying duct (12) and via at least one further supplying duct (14), air is removed from the mixing chamber (10) via a removing duct (16), and the supply of air - volume control - into the mixing chamber (10) from the supplying ducts (12, 14) is controlled in each case via flaps having in each case one flap leaf (22, 24), characterized in that, for the improved thorough mixing, the flap leaf (22, 24) is in each case oriented in such a manner that the air supplied from one duct (12, 14) is guided in the direction of the other supplying duct (14 or 12), and in that, for the saving on energy, the flap leaf (22, 24) is oriented in such a manner that the air supplied from the supplying ducts (12, 14) is guided in the direction of the removing duct (16).
  11. Method according to Claim 10, characterized in that, in the case of different physical characteristic values of the air, such as temperature, pressure, density and moisture, and/or in the case of a different quality of the air, such as oxygen content, CO2 content and pollutant content, in the individual supplying ducts (12, 14), the thorough mixing is optimized by orientation of the flap leaves (22, 24).
  12. Method according to Claim 10 or 11, characterized in that, in the case of approximately identical physical characteristic values of the air, such as temperature, pressure, density and moisture, and/or in the case of an approximately identical quality of the air, such as oxygen content, CO2 content and pollutant content, in the individual supplying ducts (12, 14), the saving on energy is optimized by orientation of the flap leaves (22, 24).
  13. Method according to one of the preceding claims, characterized in that the flap leaves (22, 24) are oriented in relation to optimizing the noise production in the mixing chamber (10).
EP11802331.6A 2011-02-04 2011-12-09 Method of operating a ventilation unit with mixing chamber Not-in-force EP2702333B1 (en)

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DE102011000525A DE102011000525A1 (en) 2011-02-04 2011-02-04 Method for operating a ventilation system with a mixing chamber
PCT/EP2011/072329 WO2012103979A1 (en) 2011-02-04 2011-12-09 Method for operating a ventilation system with a mixing chamber

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EP2702333A1 (en) 2014-03-05
US20140051345A1 (en) 2014-02-20
US9759443B2 (en) 2017-09-12
AU2011358211A1 (en) 2013-09-19
WO2012103979A1 (en) 2012-08-09
AU2011358211B2 (en) 2017-06-22
CN103492813B (en) 2017-10-20
IL227791A0 (en) 2013-09-30
DE102011000525A1 (en) 2012-08-09
CN103492813A (en) 2014-01-01

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