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EP1408290B1 - Air mixing device for air conditioning systems - Google Patents

Air mixing device for air conditioning systems Download PDF

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Publication number
EP1408290B1
EP1408290B1 EP20030020648 EP03020648A EP1408290B1 EP 1408290 B1 EP1408290 B1 EP 1408290B1 EP 20030020648 EP20030020648 EP 20030020648 EP 03020648 A EP03020648 A EP 03020648A EP 1408290 B1 EP1408290 B1 EP 1408290B1
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EP
European Patent Office
Prior art keywords
air supply
mixing device
mixing
cold air
hot air
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
Application number
EP20030020648
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German (de)
French (fr)
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EP1408290A1 (en
EP1408290B9 (en
Inventor
Gregor Baumeister
Manfred Sadkowski
Thomas Dr. Sefker
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.)
Gebrueder Trox GmbH
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Gebrueder Trox GmbH
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Publication date
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Publication of EP1408290A1 publication Critical patent/EP1408290A1/en
Publication of EP1408290B1 publication Critical patent/EP1408290B1/en
Application granted granted Critical
Publication of EP1408290B9 publication Critical patent/EP1408290B9/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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

Definitions

  • the invention relates to a mixing device for air conditioning systems for mixing cold air and hot air, with a cold air supply and a hot air supply, with a mixing area and with a mixed air outlet, wherein the cold air supply and the Mischluftauslass at least approximately in alignment and the supplied hot air flow in about at a right angle into the mixing area provided between the cold air supply and the mixed air outlet, wherein the mixing area is formed as a mixing chamber, the hot air supply is arranged in a parallel orientation to the cold air supply and a deflection device is provided for guiding the warm air flow to the mixing area.
  • Such mixing devices are used for example in air conditioning systems on ships and are used for mixing cold air and hot air.
  • a mixing device which has mutually parallel hot air and cold air supply, each of which can be closed by means of a flap.
  • the hot air supply opens approximately at a right angle in one formed as a flow channel cold air supply, so that mix due to the substantially vertical meeting the cold air and the hot air.
  • the disadvantage here is the complex channel guide and thus the overall construction of the mixing device, since with parallel guidance of the opening into the cold air supply and the hot air supply flow channels before the hot air supply an elbow must be provided for deflecting the hot air.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a mixing device which has a more compact design.
  • a wall is provided as a deflection device and that the wall extends substantially perpendicular to the flow direction in the hot air supply.
  • the flow channels connected to the hot air supply and the cold air supply can be arranged in the immediate distance from each other and open into the mixing device in parallel, so that the overall height can be reduced.
  • a deflecting one of a sound-absorbing material such. B. mineral wool
  • existing wall can be provided. But it is also quite conceivable that the wall is formed of sheet metal or other suitable material. The orientation of the wall is in a square-shaped mixing device substantially perpendicular to the flow direction the supplied into the mixing device hot and cold air.
  • the wall can extend between two opposite housing walls of the mixing device and have a recess, in particular a recess lying in alignment with the cold air feed. Since usually the supplied cold air volume flow greater than the supplied hot air volume flow, larger pressure losses are avoided in a flush arrangement of the cold air supply to the recess.
  • To regulate the volume flows can be provided in the cold air supply and / or in the hot air supply per flap. These flaps can be adjusted, for example by a servomotor in their orientation. But it may also be automatically operating flaps, which are pivoted against a restoring force by the flow from its open position to the closed position.
  • the deflecting device and / or the flap (s) can be integrated into the mixing device designed as a mixing chamber. Such an arrangement is characterized by a particularly compact design.
  • the mixing device consists of a housing 1, which by a sound-absorbing material such. B. mineral wool, existing wall 2 in two sub-chambers 3, 4 is divided. In the left sub-chamber 3, which represents the actual mixing area and essentially serves as a mixing chamber, open a cold air supply 5 and a hot air supply 6, which in turn are connected via flow channels, not shown, to an air conditioning system.
  • a flap 7, 8 are each provided to the volume flow in the cold air supply 5 and the hot air supply to control 6.
  • the hot air supply 6 and the cold air supply 5 protrude into the left sub-chamber 3.
  • the mixing of the flowing in the direction of arrow 9 cold air flow and the flowing in the direction of the arrow 10 warm air flow is improved, since the hot air and the cold air with a high speed can enter far into the mixing area.
  • the acoustic properties of the mixing device are improved, since any possible flap sounds are absorbed by the wall 2.
  • the wall 2 extends substantially perpendicular to the flow direction (arrow 10) in the hot air supply 6.
  • the hot air in the direction of the arrow 10 is deflected substantially at right angles and occurs in the right Angle on the flowing in the direction of arrow 9 cold air.
  • a high degree of mixing is achieved.
  • a recess 11 is provided in the wall 2, through which the mixed air, that is, the mixture of the cold air and the hot air, flows in the direction of the arrow 12 in the right part of the chamber 4.
  • a centrally arranged mixed air outlet 13 is provided, which is connected to the remaining part of the air-conditioning system.
  • the mixed air enters the direction of the arrow 14 from the mixing device in a adjoining flow channel, not shown.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)

Description

Die Erfindung betrifft eine Mischvorrichtung für klimatechnische Anlagen zum Mischen von Kaltluft und Warmluft, mit einer Kaltluftzuführung und einer Warmluftzuführung, mit einem Mischbereich und mit einem Mischluftauslass, wobei die Kaltluftzuführung und der Mischluftauslass wenigstens in etwa in einer Flucht liegen und die zugeführte Warmluftströmung in etwa in einem rechten Winkel in den zwischen der Kaltluftzuführung und dem Mischluftauslass vorgesehenen Mischbereich mündet, wobei der Mischbereich als Mischkammer ausgebildet ist, die Warmluftzuführung in einer parallelen Ausrichtung zu der Kaltluftzuführung angeordnet ist und eine Umlenkeinrichtung für die Führung der Warmluftströmung zum Mischbereich vorgesehen ist.The invention relates to a mixing device for air conditioning systems for mixing cold air and hot air, with a cold air supply and a hot air supply, with a mixing area and with a mixed air outlet, wherein the cold air supply and the Mischluftauslass at least approximately in alignment and the supplied hot air flow in about at a right angle into the mixing area provided between the cold air supply and the mixed air outlet, wherein the mixing area is formed as a mixing chamber, the hot air supply is arranged in a parallel orientation to the cold air supply and a deflection device is provided for guiding the warm air flow to the mixing area.

Derartige Mischvorrichtungen werden beispielsweise in klimatechnischen Anlagen auf Schiffen eingesetzt und dienen zum Mischen von Kaltluft und Warmluft. Aus der US-PS 3,283,694 ist eine Mischvorrichtung bekannt, die parallel zueinander verlaufende Warmluft- und Kaltluftzuführungen aufweist, die jeweils mittels einer Klappe verschließbar sind. Bei einer anderen bekannten Mischvorrichtung mündet die Warmluftzuführung etwa in einem rechten Winkel in eine als Strömungskanal ausgebildete Kaltluftzuführung, so dass sich aufgrund des im Wesentlichen senkrechten Aufeinandertreffens die Kaltluft und die Warmluft vermischen.Such mixing devices are used for example in air conditioning systems on ships and are used for mixing cold air and hot air. From US-PS 3,283,694 a mixing device is known which has mutually parallel hot air and cold air supply, each of which can be closed by means of a flap. In another known mixing device, the hot air supply opens approximately at a right angle in one formed as a flow channel cold air supply, so that mix due to the substantially vertical meeting the cold air and the hot air.

Nachteilig hierbei ist die aufwendige Kanalführung und somit die Gesamtkonstruktion der Mischvorrichtung, da bei paralleler Führung der die in die Kaltluftzuführung und in die Warmluftzuführung mündenden Strömungskanäle vor der Warmluftzuführung ein Winkelstück zur Umlenkung der Warmluft vorgesehen sein muss.The disadvantage here is the complex channel guide and thus the overall construction of the mixing device, since with parallel guidance of the opening into the cold air supply and the hot air supply flow channels before the hot air supply an elbow must be provided for deflecting the hot air.

Aufgabe der Erfindung ist es, die vorgenannten Nachteile zu vermeiden und eine Mischvorrichtung anzugeben, die eine kompaktere Bauweise aufweist.The object of the invention is to avoid the aforementioned disadvantages and to provide a mixing device which has a more compact design.

Diese Aufgabe wird dadurch gelöst, dass als Umlenkeinrichtung eine Wandung vorgesehen ist und dass sich die Wandung im Wesentlichen senkrecht zu der Strömungsrichtung in der Warmluftzuführung erstreckt. Hierdurch können die mit der Warmluftzuführung und der Kaltluftzuführung verbundenen Strömungskanäle im unmittelbaren Abstand zueinander angeordnet werden und parallel in die Mischvorrichtung münden, so dass die Bauhöhe reduziert werden kann.This object is achieved in that a wall is provided as a deflection device and that the wall extends substantially perpendicular to the flow direction in the hot air supply. In this way, the flow channels connected to the hot air supply and the cold air supply can be arranged in the immediate distance from each other and open into the mixing device in parallel, so that the overall height can be reduced.

Als Umlenkeinrichtung kann eine aus einem schallabsorbierenden Material, wie z. B. Mineralwolle, bestehende Wandung vorgesehen sein. Es ist aber auch durchaus denkbar, dass die Wandung aus Blech oder aus einem sonstigen geeigneten Material ausgebildet ist. Die Ausrichtung der Wandung ist bei einer viereckig ausgebildeten Mischvorrichtung im wesentlichen senkrecht zur Strömungsrichtung der in die Mischvorrichtung zugeführten Warm- und Kaltluft.As a deflecting one of a sound-absorbing material, such. B. mineral wool, existing wall can be provided. But it is also quite conceivable that the wall is formed of sheet metal or other suitable material. The orientation of the wall is in a square-shaped mixing device substantially perpendicular to the flow direction the supplied into the mixing device hot and cold air.

Vorteilhafterweise kann die Wandung sich zwischen zwei gegenüberliegenden Gehäusewänden der Mischvorrichtung erstrecken und eine Ausnehmung, insbesondere eine in der Flucht der Kaltluftzuführung liegende Ausnehmung, aufweisen. Da üblicherweise der zugeführte Kaltluftvolumenstrom größer als der zugeführte Warmluftvolumenstrom ist, werden bei einer fluchtenden Anordnung der Kaltluftzuführung mit der Ausnehmung größere Druckverluste vermieden.Advantageously, the wall can extend between two opposite housing walls of the mixing device and have a recess, in particular a recess lying in alignment with the cold air feed. Since usually the supplied cold air volume flow greater than the supplied hot air volume flow, larger pressure losses are avoided in a flush arrangement of the cold air supply to the recess.

Zur Regulierung der Volumenströme kann in der Kaltluftzuführung und/oder in der Warmluftzuführung je eine Klappe vorgesehen sein. Diese Klappen können beispielsweise durch einen Stellmotor in ihrer Ausrichtung verstellt werden. Es kann sich aber auch um selbsttätig arbeitende Klappen handeln, die gegen eine Rückstellkraft durch den Volumenstrom aus ihrer Offenstellung in die Schließstellung verschwenkt werden.To regulate the volume flows can be provided in the cold air supply and / or in the hot air supply per flap. These flaps can be adjusted, for example by a servomotor in their orientation. But it may also be automatically operating flaps, which are pivoted against a restoring force by the flow from its open position to the closed position.

Die Umlenkeinrichung und/oder die Klappe(n) kann(können) in die als Mischkammer ausgebildete Mischvorrichtung integriert sein. Eine solche Anordnung zeichnet sich durch eine besonders kompakte Bauweise aus.The deflecting device and / or the flap (s) can be integrated into the mixing device designed as a mixing chamber. Such an arrangement is characterized by a particularly compact design.

Im Folgenden wird ein in der einzigen Zeichnung dargestelltes Ausführungsbeispiel der Erfindung erläutert.In the following an illustrated in the single drawing embodiment of the invention will be explained.

Die Mischvorrichtung besteht aus einem Gehäuse 1, das durch eine aus einem schallabsorbierenden Material, wie z. B. Mineralwolle, bestehende Wandung 2 in zwei Teilkammern 3, 4 aufgeteilt ist. In die linke Teilkammer 3, die den eigentlichen Mischbereich darstellt und im Wesentlichen als Mischkammer dient, münden eine Kaltluftzuführung 5 und eine Warmluftzuführung 6, die ihrerseits über nicht dargestellte Strömungskanäle an eine klimatechnische Anlage angeschlossen sind.The mixing device consists of a housing 1, which by a sound-absorbing material such. B. mineral wool, existing wall 2 in two sub-chambers 3, 4 is divided. In the left sub-chamber 3, which represents the actual mixing area and essentially serves as a mixing chamber, open a cold air supply 5 and a hot air supply 6, which in turn are connected via flow channels, not shown, to an air conditioning system.

In der Kaltluftzuführung 5 und in der Warmluftzuführung 6 sind je eine Klappe 7, 8 vorgesehen, um den Volumenstrom in der Kaltluftzuführung 5 bzw. der Warmluftzuführung 6 zu regeln.In the cold air supply 5 and in the hot air supply 6, a flap 7, 8 are each provided to the volume flow in the cold air supply 5 and the hot air supply to control 6.

Die Warmluftzuführung 6 und die Kaltluftzuführung 5 ragen in die linke Teilkammer 3 hinein. Dabei entspricht der hineinragende Anteil in etwa dem Durchmesser der entsprechenden Klappe 7 bzw. 8. Hierdurch wird einerseits die Vermischung von dem in Richtung des Pfeils 9 strömenden Kaltluftstroms und des in Richtung des Pfeils 10 strömenden Warmluftstroms verbessert, da die Warmluft und die Kaltluft mit einer hohen Geschwindigkeit weit in den Mischbereich eintreten können. Andererseits werden die akustischen Eigenschaften der Mischvorrichtung verbessert, da eventuell auftretende Klappengeräusche von der Wandung 2 aufgenommen werden.The hot air supply 6 and the cold air supply 5 protrude into the left sub-chamber 3. In this case, on the one hand, the mixing of the flowing in the direction of arrow 9 cold air flow and the flowing in the direction of the arrow 10 warm air flow is improved, since the hot air and the cold air with a high speed can enter far into the mixing area. On the other hand, the acoustic properties of the mixing device are improved, since any possible flap sounds are absorbed by the wall 2.

Wie aus der Figur ersichtlich, erstreckt sich die Wandung 2 im Wesentlichen senkrecht zu der Strömungsrichtung (Pfeil 10) in der Warmluftzuführung 6. Durch die als Umlenkeinrichtung dienende Wandung 2 wird die Warmluft in Richtung des Pfeils 10' im Wesentlichen rechtwinklig umgelenkt und tritt im rechten Winkel auf die in Richtung des Pfeils 9 strömende Kaltluft auf. Hierdurch wird ein hoher Vermischungsgrad erzielt.As can be seen from the figure, the wall 2 extends substantially perpendicular to the flow direction (arrow 10) in the hot air supply 6. By serving as a deflecting wall 2, the hot air in the direction of the arrow 10 'is deflected substantially at right angles and occurs in the right Angle on the flowing in the direction of arrow 9 cold air. As a result, a high degree of mixing is achieved.

In der Flucht mit der Kaltluftzuführung 5 ist in der Wandung 2 eine Ausnehmung 11 vorgesehen, durch die die Mischluft, d. h. das Gemisch aus der Kaltluft und der Warmluft, in Richtung des Pfeils 12 in die rechte Teilkammer 4 strömt. Hier ist ein zentral angeordneter Mischluftauslass 13 vorgesehen, der mit dem verbleibenden Teil der klimatechnischen Anlage verbunden ist. Die Mischluft tritt in Richtung des Pfeils 14 aus der Mischvorrichtung in einen sich anschließenden nicht dargestellten Strömungskanal aus.In the escape with the cold air supply 5, a recess 11 is provided in the wall 2, through which the mixed air, that is, the mixture of the cold air and the hot air, flows in the direction of the arrow 12 in the right part of the chamber 4. Here, a centrally arranged mixed air outlet 13 is provided, which is connected to the remaining part of the air-conditioning system. The mixed air enters the direction of the arrow 14 from the mixing device in a adjoining flow channel, not shown.

Claims (6)

  1. Mixing device for air-conditioning units for mixing cold air and hot air, having a cold air supply (5) and a hot air supply (6), having a mixing region and having a mixed air outlet (13), the cold air supply (5) and the mixed air outlet (13) being situated at least approximately in alignment and the supplied hot air flow opening at approximately a right angle into the mixing region provided between the cold air supply (5) and the mixed air outlet (13), the mixing region being configured as a mixing chamber, the hot air supply (6) being disposed in a parallel orientation to the cold air supply (5) and a deflection mechanism for guiding the hot air flow to the mixing region being provided, characterised in that a wall (2) is provided as deflection mechanism and in that the wall (2) extends substantially perpendicularly to the flow direction (arrow 10) in the hot air supply (6).
  2. Mixing device according to claim 1, characterised in that a wall (2) comprising a sound-absorbing material, such as e.g. mineral wool, is provided as deflection mechanism.
  3. Mixing device according to claim 2, characterised in that the wall (2) extends between two oppositely situated housing walls of the mixing device and has a recess (11), in particular a recess (11) situated in alignment with the cold air supply (5).
  4. Mixing device according to one of the claims 1 to 3, characterised in that a butterfly valve (7) is disposed in the cold air supply (5).
  5. Mixing device according to one of the claims 1 to 4, characterised in that a butterfly valve (8) is provided in the hot air supply (6).
  6. Mixing device according to one of the claims 1 to 5, characterised in that the deflection mechanism and/or the butterfly valve(s) (7, 8) is (are) integrated into the mixing device configured as a mixing chamber.
EP20030020648 2002-10-07 2003-09-11 Air mixing device for air conditioning systems Expired - Lifetime EP1408290B9 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20215393U DE20215393U1 (en) 2002-10-07 2002-10-07 Mixing device for air conditioning systems
DE20215393U 2002-10-07

Publications (3)

Publication Number Publication Date
EP1408290A1 EP1408290A1 (en) 2004-04-14
EP1408290B1 true EP1408290B1 (en) 2006-11-08
EP1408290B9 EP1408290B9 (en) 2007-03-07

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Family Applications (1)

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EP20030020648 Expired - Lifetime EP1408290B9 (en) 2002-10-07 2003-09-11 Air mixing device for air conditioning systems

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EP (1) EP1408290B9 (en)
DE (2) DE20215393U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9488369B2 (en) * 2012-05-05 2016-11-08 General Electric Technology Gmbh Enhanced flue gas damper mixing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1236255A (en) * 1958-09-22 1960-07-15 Sulzer Ag Installation for conditioning the atmospheric state of the premises
US3283694A (en) * 1964-03-04 1966-11-08 Tempmaster Corp Air mixing and sound attenuating unit
US3613548A (en) * 1968-12-30 1971-10-19 Robertson Co H H Air-mixing valve assembly
US3768729A (en) * 1971-08-12 1973-10-30 Tempmaster Corp Delayed action dampers for air terminal units
US3901275A (en) * 1974-02-01 1975-08-26 Aeronca Inc Compact control unit for air distributing systems

Also Published As

Publication number Publication date
EP1408290A1 (en) 2004-04-14
EP1408290B9 (en) 2007-03-07
DE20215393U1 (en) 2002-12-19
DE50305624D1 (en) 2006-12-21

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