DE102004026428A1 - Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area - Google Patents
Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area Download PDFInfo
- Publication number
- DE102004026428A1 DE102004026428A1 DE102004026428A DE102004026428A DE102004026428A1 DE 102004026428 A1 DE102004026428 A1 DE 102004026428A1 DE 102004026428 A DE102004026428 A DE 102004026428A DE 102004026428 A DE102004026428 A DE 102004026428A DE 102004026428 A1 DE102004026428 A1 DE 102004026428A1
- Authority
- DE
- Germany
- Prior art keywords
- fan
- surface area
- ventilator
- exhaust pipe
- cross
- 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.)
- Withdrawn
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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
-
- 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
Abstract
Description
Die Erfindung betrifft einen Lüfter, insbesondere in Straßentunneln, nach dem Oberbegriff des Patentanspruchs 1.The Invention relates to a fan, especially in road tunnels, according to the preamble of claim 1.
Die Strömungsquerschnitte des Ansaug- und Auslaßrohres solcher Lüfter sind jeweils eine Kreisfläche mit über die gesamte Länge gleichem Durchmesser.The Flow areas the intake and exhaust pipe such fans are each a circular area with more than the entire length same diameter.
Die Erfindung beschäftigt sich mit dem Problem, einen gattungsgemäßen Lüfter zu verbessern und löst dieses durch eine Ausbildung nach dem kennzeichnenden Merkmal des Patentanspruchs 1.The Invention busy with the problem of improving a generic fan and solves this by an embodiment according to the characterizing feature of the claim 1.
Zweckmäßige und vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.Appropriate and advantageous embodiments are the subject of the dependent claims.
Die Erfindung beruht insbesondere auf dem allgemeinen Gedanken, die von einem Ventilator eines gattungsgemäßen Lüfters erzeugte Drehströmung noch innerhalb des Ausblaserohres in eine möglichst ausschließlich in Achsrichtung des Ausblaserohres ausgerichtete Strömung umzuwandeln, um hierdurch bei gleicher Leistung des Lüfters eine erhöhte Auswurfweite der geförderten und ausgeblasenen Luft zu erhalten. Die erfindungsgemäße Formgebung des Strömungsbereiches des Ausblaserohres führt darüber hinaus zu einer erhöhten Geräuschdämpfung. Eine gleiche Ausbildung von Ansaug- und Ausblaserohr nach den erfindungsgemäßen Merkmalen bietet den Vorteil, den Lüfter in gleichem Einbauzustand wahlweise in entgegengesetzte Richtungen fördern zu lassen.The Invention is based in particular on the general idea that still generated by a fan of a generic fan rotary flow within the exhaust pipe in as exclusively as possible in Axial direction of the exhaust pipe to direct aligned flow in order thereby with the same performance of the fan an increased throw width the subsidized and to get blown air. The shaping according to the invention of the flow area the blower ear leads about that out to an elevated level Noise attenuation. An identical design of intake and exhaust pipe according to the features of the invention offers the advantage of the fan in the same installed state optionally in opposite directions promote allow.
Mit ovaler Querschnittsform ist im Sinne der Erfindung praktisch jede von einer Kreisfläche abweichende in Richtung Ovalität ausgebildete Strömungsquerschnittfläche gemeint. Dabei sollte die Qualität insbesondere eine Abweichung von mindestens 10 bis 25 % von der Kreisform aufweisen.With oval cross-sectional shape is in the context of the invention virtually any from a circular area deviating towards ovality meant flow cross-sectional area meant. It should the quality in particular a deviation of at least 10 to 25% from the Have circular shape.
Besonders vorteilhaft wirkt eine Strömungsquerschnittsverformung, bei der möglichst sämtliche Strömungsquerschnitte gleich groß sind.Especially advantageous is a flow cross-section deformation, at the possible all flow cross sections are the same size.
Eine vorteilhafte Ausführung kann darin bestehen, dass in Längsrichtung der Strömungskanäle eine Trennwand eingezogen ist. Diese Trennwand sollte strukturell als absorbierende Wand ausgebildet sein. Da die durch eine solche Trennwand voneinander getrennten mindestens zwei Strömungskanalteilquerschnitte praktisch bereits bei einer kreisringförmigen Strömungskanalaußenwand ovale Strömungsquerschnitte besitzen, muss bei einer solchen Ausführung der Strömungskanalquerschnitt, in den die Trennwand eingesetzt ist, nicht bereits als solcher ovalförmig ausgebildet sein. Die mindestens eine Trennwand sollte aus strömungstechnischen Gründen zur Verminderung einer unerwünschten Geräuschbildung mit Abstand gegenüber dem Lüfter montiert sein. Bei einer kreisförmigen Außenform des betreffenden Rohres in dem sich die Trennwand befindet, bedeutet dies, dass die Kreisform in dem Abstandsbereich noch unverändert bleibt.A advantageous embodiment may be that in the longitudinal direction the flow channels one Dividing wall is retracted. This partition should be structurally as absorbent wall be formed. Because the through such a partition separated from each other at least two flow channel part cross-sections practically already at an annular flow channel outer wall oval flow cross sections have, in such an embodiment, the flow channel cross-section, in which the partition is inserted, not already formed as such oval-shaped be. The at least one partition should be fluidic Reasons to Reduction of an undesirable noise with distance opposite mounted on the fan be. In a circular external form of the relevant pipe in which the partition is located, means this means that the circular shape remains unchanged in the distance range.
Vorteilhafterweise ist der Lüfter im Inneren auf seinem gesamten Strömungsweg durchgehend mit schallabsorbierendem Material ausgekleidet. Dieses Material kann sich zusammensetzen aus einem innenliegenden Lochblech oder einem Streckmetall sowie einer Füllung aus Mineralfasern in einem Zwischenraum zwischen dem Lochblech oder Streckmetall und der Lüfteraußenwand.advantageously, is the fan throughout its entire flow path with sound-absorbing material Material lined. This material can be composed from an internal perforated plate or an expanded metal as well a filling made of mineral fibers in a space between the perforated plate or Expanded metal and the fan outer wall.
Ein nachstehend näher erläutertes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.One below Illustrated embodiment the invention is shown in the drawing.
In dieser zeigenIn show this
Ein
Lüfter
setzt sich im wesentlichen zusammen aus einem anströmseitig
gelegenen Ansaugrohr
Innerhalb
insbesondere des Ausblaserohres
Der
Querschnitt innerhalb des Ausblaserohres
Die
vorstehend beschriebene Ausgestaltung des Ausblaserohres
In
Bei
einer von einer Kreisfläche
ausgangsseitig des Ventilators
Die
in der Zeichnung eingetragene und vorstehend erläuterte Trennwand
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004026428A DE102004026428A1 (en) | 2004-05-29 | 2004-05-29 | Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004026428A DE102004026428A1 (en) | 2004-05-29 | 2004-05-29 | Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004026428A1 true DE102004026428A1 (en) | 2005-12-15 |
Family
ID=35404470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004026428A Withdrawn DE102004026428A1 (en) | 2004-05-29 | 2004-05-29 | Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004026428A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010046668A1 (en) * | 2008-10-24 | 2010-04-29 | Mosen Ltd | Improved tunnel ventilation device |
WO2010081813A1 (en) * | 2009-01-14 | 2010-07-22 | Novenco A/S | An axial blower |
GB2479082A (en) * | 2008-10-24 | 2011-09-28 | Fathi Tarada | Tunnel Ventilation Fan Nozzle |
CN106015097A (en) * | 2016-08-05 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Flow field uniformizing device designed based on contraction curve |
CN114963483A (en) * | 2021-02-20 | 2022-08-30 | 浙江盾安人工环境股份有限公司 | Liquid separator |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521416A1 (en) * | 1975-05-14 | 1976-11-25 | Costa Silard Dipl I Vasiljevic | SILENT AXIAL FAN |
DE7736584U1 (en) * | 1977-11-30 | 1978-03-09 | Colt International Gmbh, 4190 Kleve | AXIAL FAN |
DE7927670U1 (en) * | 1979-09-28 | 1980-12-04 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | SILENCED AXIAL FAN |
DE8129022U1 (en) * | 1981-10-03 | 1982-06-24 | Ruhrkohle Ag, 4300 Essen | FAN LINING IN THE FORM OF SEVERAL LAYERS |
AT375155B (en) * | 1982-07-05 | 1984-07-10 | Reinhard Dipl Ing Dr Te Pinter | JET FAN, ESPECIALLY FOR USE IN TUNNEL BUILDINGS |
DE19839729A1 (en) * | 1998-09-01 | 1999-12-02 | Micro Compact Car Smart Gmbh | Fan especially for ventilation, heating or air-conditioning installation in cars |
-
2004
- 2004-05-29 DE DE102004026428A patent/DE102004026428A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521416A1 (en) * | 1975-05-14 | 1976-11-25 | Costa Silard Dipl I Vasiljevic | SILENT AXIAL FAN |
DE7736584U1 (en) * | 1977-11-30 | 1978-03-09 | Colt International Gmbh, 4190 Kleve | AXIAL FAN |
DE7927670U1 (en) * | 1979-09-28 | 1980-12-04 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | SILENCED AXIAL FAN |
DE8129022U1 (en) * | 1981-10-03 | 1982-06-24 | Ruhrkohle Ag, 4300 Essen | FAN LINING IN THE FORM OF SEVERAL LAYERS |
AT375155B (en) * | 1982-07-05 | 1984-07-10 | Reinhard Dipl Ing Dr Te Pinter | JET FAN, ESPECIALLY FOR USE IN TUNNEL BUILDINGS |
DE19839729A1 (en) * | 1998-09-01 | 1999-12-02 | Micro Compact Car Smart Gmbh | Fan especially for ventilation, heating or air-conditioning installation in cars |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010046668A1 (en) * | 2008-10-24 | 2010-04-29 | Mosen Ltd | Improved tunnel ventilation device |
GB2479082A (en) * | 2008-10-24 | 2011-09-28 | Fathi Tarada | Tunnel Ventilation Fan Nozzle |
GB2465261B (en) * | 2008-10-24 | 2012-02-22 | Mosen Ltd | Improved tunnel ventilation system |
WO2010081813A1 (en) * | 2009-01-14 | 2010-07-22 | Novenco A/S | An axial blower |
CN106015097A (en) * | 2016-08-05 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Flow field uniformizing device designed based on contraction curve |
CN106015097B (en) * | 2016-08-05 | 2019-03-19 | 中国船舶重工集团公司第七一九研究所 | A kind of even flow field device based on shrinkage curve design |
CN114963483A (en) * | 2021-02-20 | 2022-08-30 | 浙江盾安人工环境股份有限公司 | Liquid separator |
CN114963483B (en) * | 2021-02-20 | 2023-07-07 | 浙江盾安人工环境股份有限公司 | Liquid separator |
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---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |