EP1050684B1 - Jet fan - Google Patents

Jet fan Download PDF

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Publication number
EP1050684B1
EP1050684B1 EP00108363A EP00108363A EP1050684B1 EP 1050684 B1 EP1050684 B1 EP 1050684B1 EP 00108363 A EP00108363 A EP 00108363A EP 00108363 A EP00108363 A EP 00108363A EP 1050684 B1 EP1050684 B1 EP 1050684B1
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EP
European Patent Office
Prior art keywords
fan
tunnel
fan shaft
jet
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP00108363A
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German (de)
French (fr)
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EP1050684A3 (en
EP1050684A2 (en
Inventor
Henrik Dr. Witt
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Witt & Sohn & Co GmbH
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Witt & Sohn & Co GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps

Definitions

  • the invention relates to a jet fan, in particular a Axial fan for ventilation of tunnels, with at least one in a fan shaft arranged fan and one each Nozzle assembly located at the inlet and outlet sides of the Fan shaft attached and provided with a silencer.
  • Such jet fans are used in particular for ventilation used by road tunnels.
  • the fan generates in Fan duct a strong airflow passing through the Nozzle arrangements adapted to the flow conditions in the tunnel becomes.
  • the nozzle assemblies are combined with silencers to to reduce the noise development of the fan.
  • the air flow in the tunnel is particularly through near the wall Friction of the air at the walls braked.
  • the highest Flow rate can therefore be achieved in the tunnel means. From a fluidic point of view, therefore, the tunnel center would be the ideal location for installation of the jet fan.
  • the Jet fan not in the area of the tunnel Vehicles be arranged. Therefore, the jet fan must be nearby the tunnel wall or the tunnel ceiling are mounted. But the fan power is less and less in an effective Air flow through the entire tunnel is implemented, the closer the Fan is arranged on the wall. That is: the closer a jet fan the wall or ceiling is mounted, the worse is its efficiency.
  • From DE-A-25 09 279 is a ventilation device for Road cover known, which is supported by shoring. Because of the strong air resistance generated by the shoring in Road direction is provided a transverse ventilation.
  • the Ventilation device therefore consists of a wall of the Road cover penetrating air duct and a fan, which conveys the air from outside into the interior. This is it not a jet fan, the air in the interior in Lane direction blows. The problem of air resistance in Road direction is rather bypassed by the transverse ventilation.
  • the object of the invention is to provide a jet fan for the ventilation of Specify tunneling, despite the arrangement near the tunnel wall a higher efficiency with respect to the tunnel generated Has air flow.
  • the achievement of this task according to the invention provides that the Silencer with nozzle existing nozzle arrangements over the Fan shaft are arranged inclined, so that the input and Outflow direction relative to the flow direction of Fan shaft has an angle.
  • the jet fan according to the invention can now close to the Tunnel wall or ceiling are mounted so that the inputs and Outflow directions point away from the tunnel walls.
  • the in the tunnel center easier flowing air from the nozzle assembly on Suction fan inlet, accelerated in the fan shaft and through the nozzle assembly at the fan outlet again obliquely in the direction Tunnel center blown out.
  • the effect of the Wall friction on the air flow decreases and the effectiveness of the Jet fan significantly increased.
  • the Jet fan according to the invention compared with conventional Jet fans the same fan power one Flow velocity in the tunnel, which increases by about 35% corresponds.
  • the Best results are achieved when the Angle of the inlet and / or outflow direction relative to the Flow direction of the fan shaft in the range between 3 Degrees and 25 degrees.
  • Jet fan the inclination is generated by transition pieces, the between the Fan shaft and arranged the nozzle assemblies are.
  • these transition pieces from a short piece of pipe with flanges to both Pages which correspond to the desired inclination in the Are arranged angle to each other.
  • This has the advantage that conventional nozzle arrangements and fan shafts can be taken over unchanged. Instead of the Nozzle arrangements directly with a fan duct connect, they will be on both sides of the Attached transition pieces.
  • This embodiment is suitable also for retrofitting already installed Jet fan, their effectiveness thus subsequently can be increased.
  • one facing the fan shaft for connection with the inlet and outlet side of the fan shaft beveled certain side of a nozzle assembly is trained.
  • This variant is needed no transition pieces and therefore only requires one lower production costs. But she is to Retrofit already installed jet fans because of the special shape of the nozzle arrangements only provided that the Nozzle arrangements are completely replaced.
  • a further embodiment variant provides that a Nozzle arrangement inside with an oblique air duct Is provided. This measure is recommended when the outer shape of the nozzle arrangements of aesthetic or installation-technical reasons should be straight.
  • the Flow direction of the fan shaft and the Inlet and / or outflow direction of the nozzle arrangements in essentially arranged lying in one plane, wherein the jet fan can be fastened in the tunnel in such a way that that the so defined plane is near the Tunnel agent extending axis contains.
  • This will be the Intake of air from the center of the tunnel and blowing out from air towards the middle of the tunnel Flow favors.
  • the so runs defined plane vertically from top to bottom and divides the tunnel lengthwise into a right and a left Half.
  • the plane thus defined is left arranged jet fan from top left to right down or right-handed jet fan of top right to bottom left diagonally through the Tunnel cross-section and thus through the tunnel center.
  • the jet fan 1 shown in Figure 1 is mittles a bracket 2 on the tunnel ceiling 3 a Road tunnels attached. It consists of one Fan shaft 4, in which a fan 5 is arranged is two nozzle arrangements 6, 7 and two between the respective nozzle assemblies 6, 7 and the input and Outlet sides 8, 9 of the fan shaft 4 arranged Transition pieces 10, 11.
  • the transition pieces 10, 11 consist of short pieces of pipe, which are at their ends with Flanges 12, 13 are provided.
  • the two flanges 12, 13 of a transition piece 10, 11 are at an angle of 3 degrees to 25 degrees apart.
  • a conventional fan duct 4 and conventional nozzle arrangements 6, 7 are used, without the need for further special parts.
  • the nozzle arrangements 6, 7 are conventional silencers with nozzles included in this Context are widespread.
  • the jet fan 1 shown in FIG differs from that shown in FIG only by modified nozzle arrangements 18, 19, on their side facing the Lsymmetricerschcht 4 side 20 are formed bevelled.
  • the inventive Inclination of the nozzle assemblies 18, 19 over the Fan shaft 4 results in this Embodiment by directly connecting the respective Beveled page 20 with the straight inlet 8 or Outlet side 9 of the fan shaft 4, without Interposition of a transition piece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Surgical Instruments (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The radiation fan is for ventilating tunnels and has at least one fan (5) arranged in a shaft (4). At least one nozzle arrangement (6,7) is fitted at the inlet (8) and/or outlet side (9) of the shaft and is preferably provided with a noise damper. air guide (23) to the nozzle arrangement is inclined in relation to the fan shaft, so that the inflow (14) and/or outflow direct (15) in relation to the through flow direction (16) of the fan shaft forms an angle (17). This angle is between 3 and 25 degrees

Description

Die Erfindung betrifft einen Strahlventilator, insbesondere einen Axialventilator für die Belüftung von Tunneln, mit mindestens einem in einem Ventilatorschacht angeordneten Ventilator und jeweils einer Düsenanordnung, die an der Einlaß- und Auslaßseite des Ventilatorschachts angebracht und mit einem Schalldämpfer versehen ist.The invention relates to a jet fan, in particular a Axial fan for ventilation of tunnels, with at least one in a fan shaft arranged fan and one each Nozzle assembly located at the inlet and outlet sides of the Fan shaft attached and provided with a silencer.

Derartige Strahlventilatoren werden insbesondere zur Be- und Entlüftung von Straßentunneln eingesetzt. Dabei erzeugt der Ventilator im Ventilatorschacht einen starken Luftstrom, der durch die Düsenanordnungen an die Strömungsverhältnisse im Tunnel angepaßt wird. Oft sind die Düsenanordnungen mit Schalldämpfern kombiniert, um die Lärmentwicklung des Ventilators zu reduzieren.Such jet fans are used in particular for ventilation used by road tunnels. The fan generates in Fan duct a strong airflow passing through the Nozzle arrangements adapted to the flow conditions in the tunnel becomes. Often, the nozzle assemblies are combined with silencers to to reduce the noise development of the fan.

Die Luftströmung im Tunnel wird insbesondere in Wandnähe durch Reibung der Luft an den Wänden gebremst. Die höchste Strömungsgeschwindigkeit läßt sich daher in der Tunnelmittel erreichen. Strömungstechnisch gesehen wäre deshalb die Tunnelmitte der ideale Ort zur Aufstellung des Strahlventilators. Andererseits kann aber der Strahlventilator nicht im Bereich der durch den Tunnel fahrenden Fahrzeuge angeordnet sein. Deshalb muß der Strahlventilator in der Nähe der Tunnelwand beziehungsweise der Tunneldecke montiert werden. Dabei wird aber die Ventilatorleistung immer weniger in eine effektive Luftströmung durch den gesamten Tunnel umgesetzt, je näher der Ventilator an der Wand angeordnet ist. D.h.: Je näher ein Strahllüfter an der Wand bzw. Decke montiert ist, desto schlechter ist sein Wirkungsgrad.The air flow in the tunnel is particularly through near the wall Friction of the air at the walls braked. The highest Flow rate can therefore be achieved in the tunnel means. From a fluidic point of view, therefore, the tunnel center would be the ideal location for installation of the jet fan. On the other hand, but the Jet fan not in the area of the tunnel Vehicles be arranged. Therefore, the jet fan must be nearby the tunnel wall or the tunnel ceiling are mounted. But the fan power is less and less in an effective Air flow through the entire tunnel is implemented, the closer the Fan is arranged on the wall. That is: the closer a jet fan the wall or ceiling is mounted, the worse is its efficiency.

Aus der DE-A-25 09 279 ist eine Belüftungseinrichtung für Straßenüberdeckungen bekannt, die von Traggerüsten getragen wird. Wegen der durch die Traggerüste erzeugten starken Luftwiderstände in Fahrbahnrichtung ist eine Querbelüftung vorgesehen. Die Belüftungseinrichtung besteht daher aus einer die Wand der Straßenüberdeckung durchdringenden Luftführung und einem Ventilator, der die Luft von außen in den Innenraum befördert. Hierbei handelt es sich nicht um einen Strahlventilator, der die Luft im Innenraum in Fahrbahnrichtung bläst. Das Problem der Luftwiderstände in Fahrbahnrichtung wird vielmehr durch die Querbelüftung umgangen.From DE-A-25 09 279 is a ventilation device for Road cover known, which is supported by shoring. Because of the strong air resistance generated by the shoring in Road direction is provided a transverse ventilation. The Ventilation device therefore consists of a wall of the Road cover penetrating air duct and a fan, which conveys the air from outside into the interior. This is it not a jet fan, the air in the interior in Lane direction blows. The problem of air resistance in Road direction is rather bypassed by the transverse ventilation.

Aus der US-A-5 722 885 ist eine Belüftungseinrichtung für Tunnel mit Strahlventilatoren bekannt. Um die Reibung der ausgestoßenen Luft mit den Tunnelwänden zu verringern, ist ein aufwändiger Neigungsmechanismus zur Schrägstellung des Strahlenventilators vorgesehen, der ja nach Ausblasrichtung in verschiedene Richtungen geneigt werden muss.From US-A-5 722 885 is a ventilation device for tunnel with Jet fans known. To the friction of the expelled air with To reduce the tunnel walls is a complex task Inclination mechanism for tilting the fan beam provided, which after blowing direction in different directions must be inclined.

Aufgabe der Erfindung ist es, einen Strahlventilator für die Belüftung von Tunneln anzugeben, der trotz Anordnung in der Nähe der Tunnelwand einen höheren Wirkungsgrad bezüglich der im Tunnel erzeugten Luftströmung aufweist.The object of the invention is to provide a jet fan for the ventilation of Specify tunneling, despite the arrangement near the tunnel wall a higher efficiency with respect to the tunnel generated Has air flow.

Die erfindungsgemäße Lösung dieser Aufgabe sieht vor, daß die aus Schalldämpfer mit Düse bestehenden Düsenanordnungen gegenüber dem Ventilatorschacht geneigt angeordnet sind, so daß die Ein- und Ausströmrichtung gegenüber der Durchströmungsrichtung des Ventilatorschachts einen Winkel aufweist.The achievement of this task according to the invention provides that the Silencer with nozzle existing nozzle arrangements over the Fan shaft are arranged inclined, so that the input and Outflow direction relative to the flow direction of Fan shaft has an angle.

Der erfindungsgemäße Strahlventilator kann nun in der Nähe der Tunnelwand oder Decke so montiert werden, daß die Ein- und Ausströmrichtungen von den Tunnelwänden weg weisen. Dabei wird die in der Tunnelmitte leichter strömende Luft von der Düsenanordnung am Ventilatoreinlaß angesaugt, im Ventilatorschacht beschleunigt und durch die Düsenanordnung am Ventilatorauslaß wieder schräg in Richtung Tunnelmitte ausgeblasen. Mit Vorteil wird dadurch die Wirkung der Wandreibung auf den Luftstrom vermindert und die Effektivität des Strahlventilators erheblich gesteigert. Typischerweise erzeugt der erfindungsgemäße Strahlventilator verglichen mit herkömmlichen Strahlventilatoren derselben Ventilatorleistung eine Strömungsgeschwindigkeit im Tunnel, die einer Schuberhöhung um ca. 35% entspricht. Je nach Art des Tunnels, seines Querschnitts und der Art der Aufhängung des Strahlventilators werden die besten Ergebnisse erzielt, wenn der Winkel der Ein- und/oder Ausströmrichtung gegenüber der Durchströmungsrichtung des Ventilatorschachts im Bereich zwischen 3 Grad und 25 Grad liegt.The jet fan according to the invention can now close to the Tunnel wall or ceiling are mounted so that the inputs and Outflow directions point away from the tunnel walls. In doing so, the in the tunnel center easier flowing air from the nozzle assembly on Suction fan inlet, accelerated in the fan shaft and through the nozzle assembly at the fan outlet again obliquely in the direction Tunnel center blown out. Advantageously, the effect of the Wall friction on the air flow decreases and the effectiveness of the Jet fan significantly increased. Typically, the Jet fan according to the invention compared with conventional Jet fans the same fan power one Flow velocity in the tunnel, which increases by about 35% corresponds. Depending on the type of tunnel, its cross section and the type of suspension of the jet fan, the best results are achieved when the Angle of the inlet and / or outflow direction relative to the Flow direction of the fan shaft in the range between 3 Degrees and 25 degrees.

In einer vorteilhaften Ausführungsform des erfindungsgemäßen Strahlventilators wird die Neigung durch Übergangsstücke erzeugt, die zwischen dem Ventilatorschacht und den Düsenanordnungen angeordnet sind. Im einfachsten Fall bestehen diese Übergangsstücke aus einem kurzen Rohrstück mit Flanschen zu beiden Seiten, welche entsprechend der gewünschten Neigung im Winkel zueinander angeordnet sind. Dies hat den Vorteil, daß herkömmliche Düsenanordnungen und Ventilatorschächte unverändert übernommen werden können. Statt die Düsenanordnungen direkt mit einem Ventilatorschacht zu verbinden, werden sie zu beiden Seiten der Übergangsstücke befestigt. Diese Ausführungsform eignet sich auch zur Nachrüstung bereits installierter Strahllüfter, deren Effektivität somit nachträglich gesteigert werden kann.In an advantageous embodiment of the invention Jet fan, the inclination is generated by transition pieces, the between the Fan shaft and arranged the nozzle assemblies are. In the simplest case, these transition pieces from a short piece of pipe with flanges to both Pages which correspond to the desired inclination in the Are arranged angle to each other. This has the advantage that conventional nozzle arrangements and fan shafts can be taken over unchanged. Instead of the Nozzle arrangements directly with a fan duct connect, they will be on both sides of the Attached transition pieces. This embodiment is suitable also for retrofitting already installed Jet fan, their effectiveness thus subsequently can be increased.

In einer anderen Ausführungsform ist vorgesehen, daß eine dem Ventilatorschacht zugewandte, zur Verbindung mit der Einlaß- bzw. Auslaßseite des Ventilatorschachts bestimmte Seite einer Düsenanordnung abgeschrägt ausgebildet ist. Diese Ausführungsvariante benötigt keine Übergangsstücke und erfordert daher nur einen geringeren Fertigungsaufwand. Sie ist aber zur Nachrüstung bereits installierter Strahlventilatoren wegen der speziellen Formgebung der Düsenanordnungen nur unter der Voraussetzung geeignet, daß die Düsenanordnungen komplett ausgetauscht werden.In another embodiment it is provided that one facing the fan shaft, for connection with the inlet and outlet side of the fan shaft beveled certain side of a nozzle assembly is trained. This variant is needed no transition pieces and therefore only requires one lower production costs. But she is to Retrofit already installed jet fans because of the special shape of the nozzle arrangements only provided that the Nozzle arrangements are completely replaced.

Eine weitere Ausgestaltungsvariante sieht vor, daß eine Düsenanordnung innen mit einer schrägen Luftführung ausgestattet ist. Diese Maßnahme wird empfohlen, wenn die äußere Form der Düsenanordnungen aus ästhetischen oder einbautechnischen Gründen gerade sein soll.A further embodiment variant provides that a Nozzle arrangement inside with an oblique air duct Is provided. This measure is recommended when the outer shape of the nozzle arrangements of aesthetic or installation-technical reasons should be straight.

In vorteilhafter Ausgestaltung der Erfindung sind die Durchströmungsrichtung des Ventilatorschachts sowie die Ein- und/oder Ausströmrichtung der Düsenanordnungen im wesentlichen in einer Ebene liegend angeordnet, wobei der Strahlventilator im Tunnel derart befestigbar ist, daß die so definierte Ebene eine in der Nähe der Tunnelmittel verlaufende Achse enthält. Dadurch wird die Ansaugung von Luft aus der Tunnelmitte und das Ausblasen von Luft in Richtung der in Tunnelmitte verlaufenden Strömung begünstigt. Im Falle daß der Ventilator in der Mitte der Tunneldecke aufgehängt ist, verläuft die so definierte Ebene vertikal von oben nach unten und teilt den Tunnel der Länge nach in eine rechte und eine linke Hälfte. Für den Fall, daß der erfindungsgemäße Strahlventilator im Übergangsbereich zwischen den seitlichen Tunnelwänden und der Tunneldecke angeordnet ist, verläuft die so definierte Ebene bei links angeordnetem Strahlventilator von links oben nach rechts unten oder bei rechts angeordnetem Strahlventilator von rechts oben nach links unten schräg durch den Tunnelquerschnitt und somit durch die Tunnelmitte.In an advantageous embodiment of the invention, the Flow direction of the fan shaft and the Inlet and / or outflow direction of the nozzle arrangements in essentially arranged lying in one plane, wherein the jet fan can be fastened in the tunnel in such a way that that the so defined plane is near the Tunnel agent extending axis contains. This will be the Intake of air from the center of the tunnel and blowing out from air towards the middle of the tunnel Flow favors. In case the fan is in the The middle of the tunnel ceiling is suspended, the so runs defined plane vertically from top to bottom and divides the tunnel lengthwise into a right and a left Half. In the event that the inventive Jet fan in the transition area between the arranged side tunnel walls and the tunnel ceiling is, the plane thus defined is left arranged jet fan from top left to right down or right-handed jet fan of top right to bottom left diagonally through the Tunnel cross-section and thus through the tunnel center.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Die Figuren zeigen im einzelnen:

Figur 1:
einen an einer Tunneldecke aufgehängten erfindungsgemäßen Strahlventilator in einer ersten Ausführungsform mit Übergangsstücken;
Figur 2:
einen Strahlventilator wie in Figur 1 in einer zweiten Ausführungsform mit abgeschrägten Düsenanordnungen;
Figur 3:
einen Strahlventilator wie in Figur 1 in einer dritten Ausführungsform mit äußerlich geraden Düsenanordnungen, die im Inneren eine schräge Luftführung aufweisen.
Embodiments of the invention are explained below with reference to the drawings. The figures show in detail:
FIG. 1:
a jet fan according to the invention suspended on a tunnel ceiling in a first embodiment with transition pieces;
FIG. 2:
a jet fan as in Figure 1 in a second embodiment with beveled nozzle assemblies;
FIG. 3:
a jet fan as in Figure 1 in a third embodiment with outwardly straight nozzle assemblies having an oblique air guide inside.

Der in Figur 1 dargestellte Strahlventilator 1 ist mittles einer Halterung 2 an der Tunneldecke 3 eines Straßentunnels befestigt. Er besteht aus einem Ventilatorschacht 4, in dem ein Ventilator 5 angeordnet ist, zwei Düsenanordnungen 6, 7 und zwei zwischen den jeweiligen Düsenanordnungen 6, 7 und den Ein- und Auslaßseiten 8, 9 des Ventilatorschachts 4 angeordneten Übergangsstücken 10, 11. Die Übergangsstücke 10, 11 bestehen aus kurzen Rohrstücken, die an ihren Enden mit Flanschen 12, 13 versehen sind. Die beiden Flansche 12, 13 eines Übergangsstücks 10, 11 sind im Winkel von 3°Grad bis 25 Grad zueinander angeordnet. Dadurch erhält die jeweilige Düsenanordnung 6, 7, die über das Übergangsstück 10, 11 am Ventilatorschacht 4 befestigt ist, eine Neigung gegenüber dem Ventilatorschacht 4, so daß die in Richtung der Achsen 14, 15 der Düsenanordnung 6, 7 verlaufenden Ein- und Ausströmrichtungen gegenüber der in Richtung der Achse 16 des Ventilatorschachts 4 verlaufenden Durchströmungsrichtung jeweils einen Winkel 17 von 3 Grad bis 25 Grad aufweisen.The jet fan 1 shown in Figure 1 is mittles a bracket 2 on the tunnel ceiling 3 a Road tunnels attached. It consists of one Fan shaft 4, in which a fan 5 is arranged is two nozzle arrangements 6, 7 and two between the respective nozzle assemblies 6, 7 and the input and Outlet sides 8, 9 of the fan shaft 4 arranged Transition pieces 10, 11. The transition pieces 10, 11 consist of short pieces of pipe, which are at their ends with Flanges 12, 13 are provided. The two flanges 12, 13 of a transition piece 10, 11 are at an angle of 3 degrees to 25 degrees apart. This preserves the respective nozzle arrangement 6, 7, via the Transition piece 10, 11 attached to the fan shaft 4 is an inclination relative to the fan shaft 4, so that in the direction of the axes 14, 15 of the nozzle assembly 6, 7 extending inflow and outflow opposite in the direction of the axis 16 of the fan shaft. 4 extending flow direction one each Angle 17 from 3 degrees to 25 degrees.

Bei der Verwendung der beschriebenen Übergangsstücke 10, 11 kann ein herkömmlicher Ventilatorschacht 4 und herkömmliche Düsenanordnungen 6, 7 verwendet werden, ohne daß weitere Spezialteile erforderlich wären. Bei den Düsenanordnungen 6, 7 handelt es sich um herkömmliche Schalldämpfer mit Düsen, die in diesem Zusammenhang weit verbreitet sind.When using the described transition pieces 10, 11, a conventional fan duct 4 and conventional nozzle arrangements 6, 7 are used, without the need for further special parts. at The nozzle arrangements 6, 7 are conventional silencers with nozzles included in this Context are widespread.

Der in Figur 2 dargestellte Strahlventilator 1 unterscheidet sich von dem in Figur 1 gezeigten lediglich durch modifizierte Düsenanordnungen 18, 19, die auf ihrer dem Ventilatorschcht 4 zugewandten Seite 20 abgeschrägt ausgebildet sind. Die erfindungsgemäße Neigung der Düsenanordnungen 18, 19 gegenüber dem Ventilatorschacht 4 ergibt sich bei dieser Ausführungsform durch direktes Verbinden der jeweiligen abgeschrägten Seite 20 mit der geraden Einlaß- 8 bzw. Auslaßseite 9 des Ventilatorschachts 4, ohne Zwischenschaltung eines Übergangsstücks. The jet fan 1 shown in FIG differs from that shown in FIG only by modified nozzle arrangements 18, 19, on their side facing the Lüfterschcht 4 side 20 are formed bevelled. The inventive Inclination of the nozzle assemblies 18, 19 over the Fan shaft 4 results in this Embodiment by directly connecting the respective Beveled page 20 with the straight inlet 8 or Outlet side 9 of the fan shaft 4, without Interposition of a transition piece.

Bei der in Figur 3 dargestellten Ausführungsform sind andere modifizierte Düsenanordnungen 21, 22 vorgesehen, die äußerlich eine gerade Form aufweisen, im Inneren aber mit einer schrägen Luftführung 23 ausgestattet sind, die den gewünschten Winkel 17 zwischen der Ein- 14 oder Ausströmrichtung 15 einerseits und der Durchströmungsrichtung 16 des Ventilatorschachts 4 andererseits zu erzeugen. In the embodiment shown in Figure 3 are other modified nozzle arrangements 21, 22 are provided, externally have a straight shape, inside but equipped with an oblique air guide 23 are the desired angle 17 between the 14th or outflow 15 on the one hand and the Flow direction 16 of the fan shaft. 4 on the other hand.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Strahlventilatorjet fan
22
Halterungbracket
33
Tunneldecketunnel ceiling
44
Ventilatorschachtfan shaft
55
Ventilatorfan
66
Düsenanordnungnozzle assembly
77
Düsenanordnungnozzle assembly
88th
Einlaßseiteinlet side
99
Auslaßseiteoutlet
1010
ÜbergangsstückTransition piece
1111
ÜbergangsstückTransition piece
1212
Flanschflange
1313
Flanschflange
1414
Achse (Auslaßseite)Axis (outlet side)
1515
Achse (Einlaßseite)Axis (inlet side)
1616
Achseaxis
1717
Winkelangle
1818
Düsenanordnungnozzle assembly
1919
Düsenanordnungnozzle assembly
2020
Seitepage
2121
Düsenanordnungnozzle assembly
2222
Düsenanordnungnozzle assembly
2323
Luftführungair duct

Claims (6)

  1. A jet fan for ventilating tunnels, with at least one fan (5) arranged in a fan shaft (4) and in each case with a nozzle arrangement (6, 7, 18, 19, 21, 22) which is attached at the inlet (8) and outlet side (9) of the fan shaft (4) and is provided with a sound absorber, characterised in that the nozzle arrangements (6, 7, 18, 19, 21, 22) consisting of the sound absorber with nozzle are arranged obliquely with respect to the fan shaft (4) or at the inside are equipped with an oblique air guidance means (23), so that the inflow (14) and the outflow direction (15) has an angle (17) with respect to the through-flow direction (16) of the fan shaft (4).
  2. A jet fan according to claim 1, characterised in that the angle (17) of the inflow (14) and/or outflow direction (15) with respect to the through-flow direction (16) of the fan shaft (4) lies in the region between 3 degrees and 25 degrees.
  3. A jet fan according to claim 1 or 2, characterised in that for the production of an inclination between the fan shaft (4) and a nozzle arrangement (6, 7), at least one transition piece (10, 11) is provided on one or both sides of the fan shaft (4).
  4. A jet fan according to one of the preceding claims, characterised in that a side (20) of a nozzle arrangement (18, 19) which faces the fan shaft (4) and is envisaged for connection to the inlet (8) or outlet side (9) of the fan shaft (4) is designed in a slanted manner.
  5. A jet fan according to one of the preceding claims, characterised in that the through-flow direction (16) of the fan shaft (4) as well as the inflow (14) and/or outflow direction (15) of the nozzle arrangements (6, 7, 18, 19, 21, 22) are arranged lying essentially in a plane, and that the jet fan (1) may be fastened in the tunnel (3) in a manner such that the thus defined plane contains an axis running in the vicinity of the tunnel middle.
  6. A ventilation means in a tunnel, characterised by a jet fan according to one of the preceding claims which is assembled on the tunnel wall or ceiling in a manner such that the air is blown out by the nozzle arrangements (6, 7, 18, 19, 21, 22) in the direction of the tunnel middle is such an oblique manner that the inflow and outflow directions point away from the tunnel walls.
EP00108363A 1999-05-05 2000-04-17 Jet fan Expired - Lifetime EP1050684B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920513A DE19920513A1 (en) 1999-05-05 1999-05-05 Jet fan
DE19920513 1999-05-05

Publications (3)

Publication Number Publication Date
EP1050684A2 EP1050684A2 (en) 2000-11-08
EP1050684A3 EP1050684A3 (en) 2002-03-27
EP1050684B1 true EP1050684B1 (en) 2005-11-09

Family

ID=7906943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108363A Expired - Lifetime EP1050684B1 (en) 1999-05-05 2000-04-17 Jet fan

Country Status (5)

Country Link
EP (1) EP1050684B1 (en)
AT (1) ATE309469T1 (en)
DE (2) DE19920513A1 (en)
DK (1) DK1050684T3 (en)
ES (1) ES2253153T3 (en)

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DE102004041696B4 (en) * 2004-08-28 2006-11-30 Wolter Gmbh & Co. Kg Jetventilator
CN100585189C (en) * 2005-04-08 2010-01-27 中国矿业大学 Rotary disk air-distributing and jet disturbing type hydraulic fan
GB0819608D0 (en) * 2008-10-24 2008-12-03 Mosen Ltd Improved tunnel ventilation device
WO2012143580A1 (en) * 2011-04-20 2012-10-26 Talleres Zitrón, S.A. Motor-securing system
WO2012160219A1 (en) * 2011-05-26 2012-11-29 Talleres Zitrón, S.A. System for securing noise dampers to a fan casing
DE102012208300A1 (en) 2011-07-12 2013-01-24 W & S Management Gmbh & Co. Kg Apparatus for discharging fire extinguishing agent to environment of e.g. tunnel during firefighting, has axial flow jet fans that are connected to extinguishing agent source through supply conduits for jet flow of extinguishing agent
DE102012207962A1 (en) * 2012-05-11 2013-11-14 W & S Management Gmbh & Co. Kg Suspension assembly for mounting jet fan on ceiling e.g. tunnel ceiling, has fan axis whose azimuth angle of front mounting location is identical to azimuth angle of rear mounting location
GB2509928A (en) * 2013-01-17 2014-07-23 Mosen Ltd Tunnel ventilation fan and nozzle assembly
US8863896B1 (en) * 2013-04-05 2014-10-21 Kai Kang Vectorized jet fan
CN103307044B (en) * 2013-07-08 2016-03-30 江苏华群科技发展有限公司 Vector jet blower
GB2562263A (en) * 2017-05-10 2018-11-14 Mosen Ltd Bellmouth for jetfan
JP7276857B2 (en) 2017-05-04 2023-05-18 モーゼン リミテッド Optimized tunnel ventilation device
CN109469636B (en) * 2018-11-26 2020-05-05 江苏涞森环保设备有限公司 Adjustable shock attenuation fan
CN109357141A (en) * 2018-12-11 2019-02-19 天津中隧通风机有限公司 Tunnel jet blower universal hoisting stand
CN111059068B (en) * 2019-12-11 2020-11-24 英飞同仁风机股份有限公司 Bidirectional jet fan with adjustable air inlet and outlet angles
DE102019220089A1 (en) * 2019-12-18 2021-02-04 W & S Management Gmbh & Co. Kg Nozzle element for a jet fan and jet fan
CN111237225B (en) * 2020-02-19 2021-04-16 佛山市风泰风机科技有限公司 High-efficient type efflux fan with wind direction regulatory function
DE102020107955A1 (en) 2020-03-23 2021-09-23 W & S Management Gmbh & Co. Kg Jet fan for ventilation of tunnels, jet fan system and processes

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DE1217428B (en) * 1961-09-30 1966-05-26 Voith Gmbh J M Device for longitudinal ventilation of tunnels
FR2276489A1 (en) * 1974-06-28 1976-01-23 Neu Ets Tunnel ventilation system - fans direct flow of air horizontally along space under top of arch
DE2509279A1 (en) * 1975-03-04 1976-09-16 Voith Getriebe Kg Ventilation equipment for covered roads - has axial flow intake fans supplying fresh sir to road covering
DE3127289C1 (en) * 1981-07-10 1983-01-13 Voith Getriebe Kg, 7920 Heidenheim Arrangement for the impulse ventilation of tunnels
JPH01275900A (en) * 1988-04-25 1989-11-06 Matsushita Electric Ind Co Ltd Ventilation fan for tunnel
GB9416975D0 (en) * 1994-08-23 1994-10-12 South Bank Univ Entpr Ltd Air moving system
DE19531937A1 (en) * 1995-08-17 1997-02-20 Hubert Kirchner Device for moving fluids in pipelines, e.g. for natural gas etc.

Also Published As

Publication number Publication date
ES2253153T3 (en) 2006-06-01
EP1050684A3 (en) 2002-03-27
EP1050684A2 (en) 2000-11-08
DE50011539D1 (en) 2005-12-15
DK1050684T3 (en) 2006-03-20
ATE309469T1 (en) 2005-11-15
DE19920513A1 (en) 2000-11-09

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