EP1167771B1 - Ventilateur axial réversible - Google Patents

Ventilateur axial réversible Download PDF

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Publication number
EP1167771B1
EP1167771B1 EP01111498A EP01111498A EP1167771B1 EP 1167771 B1 EP1167771 B1 EP 1167771B1 EP 01111498 A EP01111498 A EP 01111498A EP 01111498 A EP01111498 A EP 01111498A EP 1167771 B1 EP1167771 B1 EP 1167771B1
Authority
EP
European Patent Office
Prior art keywords
guide wheel
impeller
guide
blades
flow
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
EP01111498A
Other languages
German (de)
English (en)
Other versions
EP1167771A2 (fr
EP1167771A3 (fr
Inventor
Ralf Neumeier
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.)
TLT Turbo GmbH
Original Assignee
TLT Turbo GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TLT Turbo GmbH filed Critical TLT Turbo GmbH
Publication of EP1167771A2 publication Critical patent/EP1167771A2/fr
Publication of EP1167771A3 publication Critical patent/EP1167771A3/fr
Application granted granted Critical
Publication of EP1167771B1 publication Critical patent/EP1167771B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F04D19/005—Axial flow fans reversible fans
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation

Definitions

  • the invention relates to an axial fan with reversible Flow direction according to the preamble of claim 1.
  • Modern axial fans are controllable and performance-optimized Work machines, the mechanical energy in flow energy convert.
  • the controllability refers to the adjustability the speed of the impeller and the possibility of change the angle of attack of the blade with the aim of adaptation the slope of the buoyancy to the current speed and Capacity.
  • Fan efficiencies of 90% ensure that the Operating costs to a minimum. But not only the Efficiencies in the design point are decisive, but also the efficiency of the fan in the partial load area is frequent of crucial importance.
  • the cheapest type of scheme The fan is controlled by changing the speed of the fan Impeller achieved.
  • the regulation of the speed is only useful, if all Operating points near the energetically optimal Plant characteristic lie. Changes due to plant (eg Form of the system, parallel operation with other fans or similar) the location of the operating points of the energetic optimal plant characteristic, it makes sense, in addition to the Speed change also the angle of attack of the blades change to reach high partial load efficiencies.
  • the blades of the impeller are one Rotary axis made adjustable.
  • the wheel can also with a trailing wheel that combines kinetic energy existing spin components converted into static pressure.
  • the aerodynamic efficiency is significantly increased.
  • a Install pilot wheel A Vorleitrad causes a Change in the usable pressure increase of the fan. According to the generated twist (counter-twist or Mitdrall) before the impeller is raised or the fan characteristic curve lowered.
  • a thrust reverser as known from aircraft engines, separates as a solution because of, because with axial fans no energetically meaningful operation is possible. In addition works it turns out that there is only a short-term countercurrent operation is received, the direction reversal in axial fans, however for a long time and under energetic favorable aspects should be done.
  • a generic axial fan with reservierbarer Flow direction is known from GB 704 440 A.
  • This Axial fan has an impeller with fixed, level Blades. The reversal of the flow direction within the Axial fan takes place exclusively in that the Direction of rotation of the impeller is reversed. About the impeller driving motor is in the GB 704 440 A nothing said.
  • turbomachine From DE 884 930 C an axial flow machine is known, depending on the direction of rotation of the impeller either as a pump or works as a turbine.
  • the turbomachine has a Forwarding and a Nachleitsystem, whose respective function at a flow reversal within the turbomachine changes.
  • the flow reversal is alone on a job Reached blades that are symmetrical to the center line of the Blade profiles are formed.
  • the invention is based on the object, the generic Axial fan with reversible flow direction so too make that same for a given volume flow Aerodynamic performances, such as high pressure and high Efficiency, allowing operation in both directions become.
  • the mirror-symmetrical to its axis of rotation Blades can be such a rotation angle adjust that optimal operating conditions and / or a Flow reversal can be achieved.
  • it gets through the use of a Vor slaughters and a Nachleitrades and by the design and the adjustment of the Guide vanes of these stators possible at a Flow reversal the operation of the Vor slaughters and the Trailing wheel to swap against each other.
  • the vanes are as well as blades of the impeller so adjustable, that depending on the current needs in the optimal Position can be brought.
  • Axial fan it depends, an adjustable Follower to use. Because of this, this is going on Axial fan the impeller an adjustable Vorleitrad upstream, the function of the flow reversal Nachleitrades can take over without the ability of the Vorlaufrades that would change the pressure increase, would be necessary.
  • the fan assembly consists of a fan housing 1, on the one hand via an intake 2 with a Intake box 3 and on the other side via a Outlet 4 is connected to a blowout box 5.
  • a fan housing 1 Within the fan housing 1 is at a distance from the Housing wall and to form a flow channel 6 a Axial fan supported.
  • the axial fan includes a hub 7 with a streamlined Anströmteil 8, a cylindrical Middle part 9 and a streamlined outflow part 10th Within the cylindrical central part 9 of the hub 7 is a Impeller 11 is arranged.
  • the impeller 11 consists of a Impeller hub 12, with the cylindrical center part 9 of the hub 7 is aligned.
  • the impeller 11 is on its periphery with blades 13th stocked.
  • the blades 13 are about a rotation axis rotatable, which extends radially to the impeller 11.
  • the Adjustment of the blades 13 takes place during operation or at a standstill via a mechanical, electrical or hydraulic actuator.
  • the blades 13 are in Reference to the axis of rotation mirror-symmetrical design. On the Actuator can be the blades 13 twist so far that according to the characteristic field for all flow rates and operating conditions optimal efficiencies can be achieved.
  • the Blades 13 are also twisted so that one Flow reversal occurs.
  • the intake manifold 2 for Ausblasestutzen and the Ausblasestutzen 4 for Intake manifold are for example when using the axial fan in the ventilation of a Tunnels desirable if in a fire the fire gases too a certain duct or to the closer one Duct or tunnel exit to be promoted.
  • the drive of the impeller 11 via a drive motor 14, which is arranged as a built-in motor within the hub 7.
  • a drive motor 14 is designed as an asynchronous motor and with provided a speed control.
  • the speed control is used also for setting optimal efficiencies different operating conditions.
  • a simple Switching can be the direction of rotation of the asynchronous motor turning back.
  • the asynchronous motor also changes the Direction of rotation of the impeller 11, so that with the adjustment of Blades 13 also in this way a reversal of Flow direction is achieved.
  • the impeller 11 is a fixed Vorleitrad 15 upstream and a fixed Nachleitrad 16 downstream.
  • Both guide wheels 15, 16 are with Guide vanes 17, 18 provided, which are preferably curved.
  • the curvature can come about by the fact that the Guide vanes 17, 18 consist of straight sections, the lower at an obtuse angle to each other.
  • the vanes 17 Vor slaughters 15 are mirror-symmetrical to the vanes 18 of the Nachleitrades 16 formed, wherein the radial Middle plane of the impeller 11 forms the plane of symmetry.
  • the guide vanes 17, 18 of the Vorleitrades 15 and the Nachleitrades 16 are rotatably mounted about a rotation axis 19. They are due to this storage at an angle to Flow direction adjustable.
  • the employment of the vanes 17, 18 takes place mechanically or electrically against the spring force a return spring 20 via an adjusting lever 21 which is connected to the Rotation axis 19 attacks.
  • the adjusting lever 21 is at the Fan housing 1 supported.
  • the employment of the vanes 17, 18 serves as well as the rotation of the blades 13th to set optimal efficiencies.
  • the vanes are made 17, 18 from a fixed section 22 and from a adjustable section 23.
  • the dividing plane of the two sections 22, 23 of the vanes 17, 18 lies in the plane of the Vanes 17, 18 along the axis of rotation 19.
  • the adjustable Portions 23 of the vanes 17, 18 are each the impeller 11 facing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (6)

  1. Ventilateur axial avec direction d'écoulement réversible comprenant un rotor (11) entraíné par un moteur d'entraínement (14) avec sens de rotation réversible, une roue de pré-rotation (15) étant montée en amont du rotor (11) et une roue de post-rotation (16) étant montée en aval du rotor (11), lesquelles roues sont équipées d'ailettes directrices (17, 18), les ailettes directrices (17, 18) de la roue de pré-rotation (15) et de la roue de post-rotation (16) étant conçues de façon symétrique par rapport au plan médian radial du rotor (11) et les ailettes directrices (17, 18) étant disposées dans un angle de façon réglable par rapport à la direction d'écoulement et la roue de pré-rotation (15) assumant la fonction de la roue de post-rotation et la roue de post-rotation (16) assumant la fonction de la roue de pré-rotation en cas d'inversion de l'écoulement, caractérisé en ce que le rotor (11) est équipé d'ailettes directrices (13) déplaçables autour d'un axe de rotation et symétriques par rapport à l'axe de rotation et en ce que le moteur d'entraínement (14) est conçu comme un moteur asynchrone réglé par le régime.
  2. Ventilateur axial selon la revendication 1, caractérisé en ce que les ailettes directrices (17, 18) de la roue de pré-rotation (15) et de la roue de post-rotation (16) sont incurvées.
  3. Ventilateur axial selon la revendication 1 ou 2, caractérisé en ce que les ailettes directrices (17, 18) de la roue de pré-rotation (15) et de la roue de post-rotation (16) comprennent chacune une partie (22) fixe et une partie (23) pouvant être déplacée autour d'un axe de rotation (19), en ce que la partie (23) déplaçable des ailettes directrices (17, 18) est tournée vers le rotor (11) et en ce que l'axe de rotation (19) est agencé dans le plan de l'ailette directrice le long de la ligne de séparation entre la partie fixe et la partie déplaçable (22, 23) des ailettes directrices (17, 18).
  4. Ventilateur axial selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les ailettes directrices (17, 18) de la roue de pré-rotation (15) et de la roue de post-rotation (16) peuvent être déplacées d'un angle tel que des états de service optimum peuvent être obtenus pour les deux directions d'écoulement.
  5. Ventilateur axial selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les ailettes mobiles (13) du rotor (11) peuvent être déplacées d'un angle de rotation tel qu'on peut obtenir des états de service optimum et/ou une inversion de l'écoulement.
  6. Ventilateur axial selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le moteur d'entraínement (14) du rotor (11) est un moteur asynchrone avec un sens de rotation réversible.
EP01111498A 2000-06-21 2001-05-11 Ventilateur axial réversible Expired - Lifetime EP1167771B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10030497 2000-06-21
DE10030497A DE10030497A1 (de) 2000-06-21 2000-06-21 Axialventilator mit reversierbarer Strömungsrichtung

Publications (3)

Publication Number Publication Date
EP1167771A2 EP1167771A2 (fr) 2002-01-02
EP1167771A3 EP1167771A3 (fr) 2003-02-05
EP1167771B1 true EP1167771B1 (fr) 2005-08-24

Family

ID=7646457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01111498A Expired - Lifetime EP1167771B1 (fr) 2000-06-21 2001-05-11 Ventilateur axial réversible

Country Status (8)

Country Link
US (1) US6508622B1 (fr)
EP (1) EP1167771B1 (fr)
JP (1) JP2002031097A (fr)
AT (1) ATE302909T1 (fr)
CA (1) CA2347931A1 (fr)
DE (2) DE10030497A1 (fr)
RU (1) RU2264560C2 (fr)
ZA (1) ZA200104995B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340774C (zh) * 2005-05-12 2007-10-03 西安交通大学 具有两列平行于来流导叶的单叶轮完全可反风轴流风机
CN101666321B (zh) * 2008-09-03 2012-01-25 淄博矿业集团有限责任公司 轴流式风动除尘风机
JP5547519B2 (ja) * 2010-03-01 2014-07-16 東海旅客鉄道株式会社 流体機械、流体機械運転制御装置
CN102852840B (zh) * 2011-06-29 2015-01-07 中国科学院工程热物理研究所 用于轴流压缩系统变工况的可调导/静叶控制器及方法
DE102012005238B3 (de) * 2012-03-14 2013-06-06 Astrid Hilchenbach Axialgebläse zum Reversieren der Luftströmung
FR3025184B1 (fr) * 2014-09-01 2016-12-23 Technofan Appareil de ventilation pour aeronef
US9835037B2 (en) 2015-06-22 2017-12-05 General Electric Company Ducted thrust producing system with asynchronous fan blade pitching
DE102015011131A1 (de) * 2015-08-31 2017-03-02 Esg Mbh Nasskühltürme mit Zugunterstützung durch Ventilatoren Verringerung der Emission von Tropfen und von Mikroorganismen
RU2621921C1 (ru) * 2016-07-26 2017-06-08 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный политехнический университет (НПИ) имени М.И. Платова" Вентиляторная установка
CN110043306B (zh) * 2019-05-23 2021-07-09 江苏建筑职业技术学院 一种用于隧道施工的隧道风机
DE202021100686U1 (de) 2021-02-11 2022-05-12 Systemair GmbH Belüftungseinrichtung mit Leitwerk aus Haltestegen

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611533A (en) * 1949-11-08 1952-09-23 Hartzell Propeller Fan Company Reversible fan and delivery tube
DE884930C (de) * 1951-02-27 1953-07-30 Voith Gmbh J M Stroemungsmaschine fuer zwei Durchstroemrichtungen
GB704440A (en) * 1951-11-06 1954-02-24 Francois Jacques Barthelemy Be Improvements in or relating to axial flow fans
US3820916A (en) * 1972-05-12 1974-06-28 I Brusilovsky Axial flow reversible fan
JPS5148373B2 (fr) * 1973-02-12 1976-12-20
US3946554A (en) * 1974-09-06 1976-03-30 General Electric Company Variable pitch turbofan engine and a method for operating same
US3946556A (en) * 1974-10-25 1976-03-30 Rockwell International Corporation Integrated nozzle and steering mechanism for waterjets
DE2607159C3 (de) * 1976-02-21 1979-05-03 Voith Getriebe Kg, 7920 Heidenheim Axialventilator
JPS5844271Y2 (ja) * 1980-03-17 1983-10-07 株式会社日立製作所 回転グリルの回転角度調整装置
DK151198B (da) * 1984-10-26 1987-11-09 Niro Atomizer As Forstoeverhjul til brug i et forstoevningstoerringsanlaeg
DE3505162A1 (de) * 1985-02-15 1986-09-04 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Propellerpumpe
FR2614369A1 (fr) * 1987-04-23 1988-10-28 Tagnon Luc Stator a pas variable
SU1603066A1 (ru) * 1988-08-01 1990-10-30 Институт Горного Дела Со Ан Ссср Механизм поворота лопаток осевого вентил тора
RU2061907C1 (ru) * 1993-11-09 1996-06-10 Ракетно-космическая корпорация "Энергия" им.С.П.Королева Осевой вентилятор и способ его сборки

Also Published As

Publication number Publication date
RU2264560C2 (ru) 2005-11-20
EP1167771A2 (fr) 2002-01-02
EP1167771A3 (fr) 2003-02-05
JP2002031097A (ja) 2002-01-31
US6508622B1 (en) 2003-01-21
DE10030497A1 (de) 2002-01-03
DE50107172D1 (de) 2005-09-29
ZA200104995B (en) 2001-10-31
CA2347931A1 (fr) 2001-12-21
ATE302909T1 (de) 2005-09-15

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