DE1291090B - Device for generating an air flow - Google Patents
Device for generating an air flowInfo
- Publication number
- DE1291090B DE1291090B DESCH32638A DESC032638A DE1291090B DE 1291090 B DE1291090 B DE 1291090B DE SCH32638 A DESCH32638 A DE SCH32638A DE SC032638 A DESC032638 A DE SC032638A DE 1291090 B DE1291090 B DE 1291090B
- Authority
- DE
- Germany
- Prior art keywords
- air
- distribution chamber
- air distribution
- chamber
- fan
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
-
- 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
- F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Zur Erzeugung einer Luftströmung dienen im allgemeinen Axial- oder Radialventilatoren, letztere auch in Form sogenannter Querstromgebläse. Für die Luftbewegung in bewohnten Räumen wird z. B. das Querstromgebläse deshalb verwendet, weil es nur - ge ringe Geräusche verursacht und einen gleichmäßigen Luftstrom erzeugt. Die Bündelung der Strömung in einem deutlich begrenzten Strahl, der sich erst in größerer Entfernung von seinem Entstehungsort durch Mischung mit der Unigebungsluft auflöst, ist aber in manchen Fällen unerwünscht. Insbesondere soll die Luftbewegung in einem bewohnten Raum eine Strömung mit möglichst geringer Geschwindigkeit sein, die den gesamten Raum erfaßt. Um diesen Effekt zu erzielen, kann man z. B. einen langflügeligen Deckenventilator, dessen Drehachse vertikal angeordnet ist, mit geringer Drehzahl betreiben. Ein sol- cher Deckenventilator hat aber Nachteile, die sich aus den großen AbinessunGen seiner Flügel und der geringen Drehzahl ergeben. Elektrische Antriebe mit kleiner Drehzahl sind bekanntlich schwieriger herzustellen als solche mit Drehzahlen, die den gebräuchlichen Netzfrequenzen angepaßt sind. Außerdem wird von den einzelnen Flügeln eine ungleichförmige Luftbewegung mit zeitlich und örtlich schwankender Geschwindigkeit erzeugt, und es entstehen unerwünschte Geräusche.Axial or radial fans are generally used to generate an air flow, the latter also in the form of so-called cross-flow fans. For air movement in inhabited rooms z. B. the cross-flow fan is used because it only - ge rings causes noises and generates a uniform air flow. The bundling of the flow in a clearly limited jet, which only dissolves at a greater distance from its point of origin by mixing with the ambient air, is, however, undesirable in some cases. In particular, the air movement in an inhabited room should be a flow with the lowest possible speed that covers the entire room. To achieve this effect, you can z. B. operate a long-blade ceiling fan, the axis of rotation of which is arranged vertically, at low speed. But a sol cher ceiling fan has disadvantages that result from the large AbinessunGen of its wings and the low speed. It is well known that electric drives with a low speed are more difficult to manufacture than those with speeds that are adapted to the usual mains frequencies. In addition, a non-uniform air movement with a temporally and locally fluctuating speed is generated by the individual blades, and undesirable noises are generated.
Durch eine Vorrichtung gemäß der Erfindung werden diese Nachteile vermieden, weil die Luftströmung dadurch erzeugt wird, daß eine größere Anzahl parallel wirkender Luftstrahlen mit kleinem Strahlquerschnitt und demzufolge geringer Eindringtiefe die sie umgebende Luft mitnimmt und so eine insgesamt großräumige, turbulenzarme und drallfreie Strömung hervorruft.A device according to the invention eliminates these disadvantages avoided because the air flow is generated by having a larger number in parallel Acting air jets with a small jet cross-section and consequently low penetration depth the surrounding air takes with it and thus an overall large-scale, low-turbulence and induces swirl-free flow.
Die Erfindung besteht darin, daß aus einer größeren Anzahl von Ausströmdüsen, die an einer im wesentlichen als ebenes Röhrennetz ausgebildeten Luftverteilkammer angeordnet sind, Treibluftstrahlen in Richtung der insgesamt erzeugten Strömung austreten, von denen ein erheblicher Teil der an der insgesamt erzeugten Strömung beteiligten Luft durch die Maschen des Röhrennetzes hindurch mitgerissen wird. Die Erfindung sieht ferner vor, daß die Achsen der Ausströmdüsen divergierend oder konvergierend einen Winkel miteinander bilden können und daß dieser Winkel in weiterer Ausbildung der Erfindung einstellbar ist.The invention consists in that from a larger number of discharge nozzles, the air distribution chamber formed essentially as a flat network of tubes are arranged, propellant air jets in the direction of the total flow generated emerge, of which a significant part of the total flow generated participating air is entrained through the mesh of the tube network. the The invention also provides that the axes of the discharge nozzles are diverging or converging can form an angle with each other and that this angle in further training of the invention is adjustable.
Die Luftverteilkammer ist in an sich bekannter Weise mit einem luftfördernden Ventilator verbunden, der aus einem oder mehreren in einem Gehäuse rotierenden, axial oder radial fördernden Schaufelrädern besteht. Im allgemeinen wird die Luftverteilkammer zentralsymmetrisch zum Ventilatorgehäuse angeordnet sein; es sind aber auch andere, unsymmetrische Anordnungen denk-bar.The air distribution chamber is in a manner known per se with an air-conveying chamber Fan connected, which consists of one or more rotating in a housing, axially or radially conveying impellers. In general, the air distribution chamber be arranged centrally symmetrically to the fan housing; but there are also others asymmetrical arrangements conceivable.
Darüber hinaus bezieht sich die Erfindung auch auf die Einströmseite der Vorrichtung, die in der gleichen Art wie die Luftverteilkammer als Luftsammelkammer ausgebildet sein kann. Die Luftsammelkammer besitzt auf der den Ausströmdüsen der Luftverteilkammer entgegengesetzten Seite eine größere Anzahl von Einströmöffnungen und verbindet diese mit der Saugseite des Ventilators. Dabei kann die Luftsammelkammer zusammen mit der Luftverteilkammer ein gemeinsames Netz aus Röhren, die zwei Kanäle enthalten, bilden.In addition, the invention also relates to the inflow side the device acting in the same way as the air distribution chamber as the air collection chamber can be formed. The air collection chamber has the outlet nozzles on the Air distribution chamber opposite side a larger number of inflow openings and connects it to the suction side of the fan. The air collection chamber together with the air distribution chamber a common network of tubes, the two channels contain, form.
Die Erfindung sieht weiterhin vor, daß die Röhren, die die Luftsammelkammer und/oder die Luftverteilkammer bilden, eine für die durch die Maschen des Röhrennetzes hindurchgehende Strömung widerstandsarme, d. h. eine vorzugsweise in Richtung der insgesamt erzeugten Strömung langgestreckte Form besitzen.The invention further provides that the tubes which form the air collection chamber and / or the air distribution chamber have a low resistance to the flow passing through the meshes of the tube network, i. H. preferably have an elongated shape in the direction of the overall flow generated.
Der Vorteil der Erfindung besteht darin, daß die Vorrichtung einen physiologisch erwünschten gleichmäßigen, großräumigen Luftstrom erzeugt und daß sie äußerlich keine bewegten Teile aufweist. Ferner kann der luftfördernde Ventilator mit der konstruktiv günstigsten bzw. wirtschaftlichsten Drehzahl betrieben werden. Und schließlich läßt sich die äußere Gestalt der gesamten Apparatur den geschmacklichen Bedingungen der Wohnkultur in weitergehendem Maße anpassen, als das mit den bekannten Ventilatoren der Fall ist.The advantage of the invention is that the device has a physiologically desired uniform, spacious air flow generated and that it has no moving parts on the outside. Furthermore, the air-conveying fan be operated with the most constructive or most economical speed. And finally, the external shape of the entire apparatus can be adapted to the taste Adapt the conditions of the home decor to a greater extent than with the known ones Fans is the case.
Zur näheren Erläuterung der Funktionsweise sind in F i g. 1 bis 3 Ausführungsformen der Vorrichtung dargestellt.For a more detailed explanation of the mode of operation, FIG. 1 to 3 embodiments of the device shown.
F i 1 ist ein Längsschnitt; F i g. 2 ist die Ansicht einer Vorrichtung in Richtung des Pfeiles A in F i g. 1; F i g. 3 ist der Längsschnitt einer Vorrichtung, bei der die Luftsammelkammer und die Lufverteilkammer eine bauliche Einheit bilden.F i 1 is a longitudinal section; F i g. Figure 2 is a view of a device in the direction of arrow A in Figure 2. 1; F i g. 3 is the longitudinal section of a device in which the air collection chamber and the air distribution chamber form a structural unit.
Gemäß F i g. 1 ist im Ventilatorgehäuse 11 der elektrische Antriebsmotor 12 gelagert, auf dessen Welle 13 das Schaufelrad 14 befestigt ist. Durch die öffnungen 15 im Ventilatorgehäuse 11 wird Luft angesaugt und in die Luftverteilkammer 16 gefördert, von wo sie aus einer größeren Anzahl von Austrittsdüsen 17 in Form von Luftstrahlen 18 austritt. Die Luftstrahlen 18 reißen die in ihrer Umgebung befindliehe Luft mit und vermischen sich mit ihr, so daß in einigem Abstand von der Vorrichtung eine im wesentlichen gleichmäßige Strömung herrscht, deren Geschwindigkeit beträchtlich geringer ist als die der einzelnen Luftstrahlen 18 unmittelbar nach Austritt aus den Düsen 17. Für den Zustrom von Umgebungsluft, die von den Luftstrahlen 18 mitgerissen werden soll, ist gemäß F i g. 2 die Luftverteilkammer als Röhrennetz mit entsprechenden Maschen 19 ausgebildet. Durch diese Maschen hindurch strömt ein erheblicher Teil der an der insgesamt erzeugten Strömung beteiligten Luft. Ein Teil der vom Schaufelrad 14 durch die öffnungen 15 angesaugten Luft wird zur Kühlung des elektrischen Antriebsmotors 12 abgezweigt und verläßt das Ventilatorgehäuse 11 durch die Bohrungen 20 in Richtung der allgemeinen Luftbewegung, die von den Luftstrahlen 18 hervorgerufen wird.According to FIG. 1 , the electric drive motor 12 is mounted in the fan housing 11 , on the shaft 13 of which the impeller 14 is fastened. Air is sucked in through the openings 15 in the fan housing 11 and conveyed into the air distribution chamber 16 , from where it emerges from a large number of outlet nozzles 17 in the form of air jets 18 . The air jets 18 entrain the air in their surroundings and mix with it, so that at some distance from the device there is an essentially uniform flow, the speed of which is considerably lower than that of the individual air jets 18 immediately after exiting the nozzles 17 . For the influx of ambient air to be entrained by the air jets 18, in accordance with F i g. 2, the air distribution chamber is designed as a network of tubes with corresponding meshes 19 . A considerable part of the air participating in the overall flow generated flows through these meshes. Part of the air sucked in by the paddle wheel 14 through the openings 15 is branched off to cool the electric drive motor 12 and leaves the fan housing 11 through the bores 20 in the direction of the general air movement caused by the air jets 18 .
In F i g. 3 ist eine Ausführungsform dargestellt, bei der die Luft durch eine größere Anzahl verteilter Eintrittsöffnungen 31 in eine Luftsammelkammer 32 gelangt. Vom Ventilator wird die eingeströmte Luft in die Luftverteilkammer 33 gefördert. Sie verläßt diese Kammer durch einstellbare Austrittsdüsen 34 in Form von Luftstrahlen 35, die mit der Normalrichtung 36 einen Winkel 37, wie dargestellt, im konvergierenden oder aber im divergierenden Sinne bilden. Im ersteren Falle entsteht eine mehr gebündelte, in die Tiefe des Raumes vordringende Strömung, im letzteren Falle eine sich ausbreitende Strömung geringer Eindringtiefe. Die Luftsammelkammer 32 und die Luftverteilkammer 33 sind einander so angepaßt, daß sie ein gemeinsames Netz aus Röhren, die zwei Kanäle enthalten, bilden. So erhält man eine Anordnun. -. die, in Richtung des Pfeiles B gesehen, der F i g. 2 entspricht.In Fig. 3 shows an embodiment in which the air passes through a larger number of distributed inlet openings 31 into an air collecting chamber 32 . The air that has flowed in is conveyed into the air distribution chamber 33 by the fan. It leaves this chamber through adjustable outlet nozzles 34 in the form of air jets 35 which form an angle 37 with the normal direction 36 , as shown, in the converging or in the diverging sense. In the former case there is a more concentrated flow that penetrates into the depths of the space, in the latter case a spreading flow with less penetration depth. The air collection chamber 32 and the air distribution chamber 33 are adapted to one another so that they form a common network of tubes containing two channels. This is how you get an arrangement. -. which, seen in the direction of arrow B, of FIG . 2 corresponds.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DESCH32638A DE1291090B (en) | 1963-01-23 | 1963-01-23 | Device for generating an air flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH32638A DE1291090B (en) | 1963-01-23 | 1963-01-23 | Device for generating an air flow |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1291090B true DE1291090B (en) | 1969-03-20 |
Family
ID=7432513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH32638A Pending DE1291090B (en) | 1963-01-23 | 1963-01-23 | Device for generating an air flow |
Country Status (1)
Country | Link |
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DE (1) | DE1291090B (en) |
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