EP1367262A2 - Capot de ventilateur en particulier pour refroidisseurs d'air - Google Patents

Capot de ventilateur en particulier pour refroidisseurs d'air Download PDF

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Publication number
EP1367262A2
EP1367262A2 EP03009743A EP03009743A EP1367262A2 EP 1367262 A2 EP1367262 A2 EP 1367262A2 EP 03009743 A EP03009743 A EP 03009743A EP 03009743 A EP03009743 A EP 03009743A EP 1367262 A2 EP1367262 A2 EP 1367262A2
Authority
EP
European Patent Office
Prior art keywords
guide vane
vane ring
impeller
air
protective grille
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.)
Granted
Application number
EP03009743A
Other languages
German (de)
English (en)
Other versions
EP1367262B1 (fr
EP1367262A3 (fr
Inventor
Franz Summerer
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.)
Hans Guentner GmbH
Original Assignee
Hans Guentner 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 Hans Guentner GmbH filed Critical Hans Guentner GmbH
Publication of EP1367262A2 publication Critical patent/EP1367262A2/fr
Publication of EP1367262A3 publication Critical patent/EP1367262A3/fr
Application granted granted Critical
Publication of EP1367262B1 publication Critical patent/EP1367262B1/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
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • the invention relates to a protection against accidental contact for fans, in particular of air coolers, consisting of a housing having an air inlet and an air outlet with a lamellar pack through which coolant tubes pass and a fan driven by an electric motor in the area of the air outlet, the impeller of which is assigned a protective grille which is associated with the generation a largely twist-free exhaust air flow as Strömungsleitappara t is formed which has downstream of the fan impeller at a small distance from said one axially aligned with the fan wheel, the stationary guide vane ring, the blades of which are curved such that they concentrate the emerging from the impeller air jets, wherein the protective grid on the inlet or outlet side of the guide vane ring is arranged.
  • a contact protection of this type is known from DE-GM 94 22 006.
  • the protective grille prescribed for safety reasons to get rid of the flow alignment function because this task is due to the mesh or honeycomb-like construction of the protective grille has so far been poorly fulfilled.
  • This The task is a guide vane ring which primarily serves to orient the flow transferred, which also fulfills the function of a protection against accidental contact, since it is in Direction of air flow behind the impeller of the fan, so that its rotor cannot be touched accidentally.
  • Another protective grille device or contact protection is also from DE-GM 88 16 827 and there has a web mesh structure with polygonal or circular Individual openings with which it is intended that the emerging from the protective grille To straighten the air flow, in particular to align it parallel to the axis of rotation of the fan.
  • a mesh-like lattice none, at least not a pronounced one Rectification of the air flow can be achieved, but behind the grille one more forms or less turbulent flow condition, which not only leads to a significant switching pressure leads, but is also very swirling, which is why the efficiency of the fan leaves a lot to be desired and the throwing distance of the flow emerging from the grille is relatively small is.
  • the air cooler known from EP 477 612 A2 is also equipped with a so-called air baffle, but by the same as in the above Constructions actually do not parallelize the airflow emerging from the grille in the sense of a swirl-free and therefore low-loss flow, which is why this grid is also provided with pivotable lattice parts that deflect the associated outlet-side flow portion to the residual flow should cause a targeted to achieve directed total flow through which despite the deflection of the grating part Backflow around the housing to the air inlet side is to be prevented.
  • the object of the invention is now to design the contact protection so that it is somewhat independent of the vane ring, which means that it is from the latter can be removed at any time, but also to one belonging to a fan Guide vane ring can still be retrofitted without having to attach the Protection against contact requires a considerable effort.
  • the guide vane ring with the Protective grille is detachably connected.
  • the detachable connection between the protective grille and guide vane ring can advantageously take place with the help of snap or clip elements, the component of the guide vane ring usually made of plastic and the Grasp the contact protection on its outer edge; but it can also be done in the simplest Way with the help of cable ties.
  • the impeller 2 of the fan sits with its hub 1 on the axis of rotation 5 of the impeller driving electric motor 6.
  • a flow control device arranged, consisting of a stationary guide vane ring 3, which from the impeller 2nd has a short distance and is axially aligned with the impeller and its blades 13, 14, as can be seen from FIG. 3, are curved so that they come from the impeller 2 bundle emerging air jets S.
  • a touch guard 4 belongs to the flow guide apparatus, which is on the air outlet side 7 of the guide vane ring is arranged and consists of a wire mesh that at least the blade channels 17 covers, so that reaching through the Blade channels by hand and thus contact with the rotating impeller impossible is.
  • the electric motor 6 indicated schematically in FIG. 1 is operated with the aid of a device 18 held in the vane ring 3.
  • Impeller diameter LD 880 mm with a hub diameter ND of 250 mm
  • the guide vanes themselves have the radiation angle ⁇ of the air flow at Impeller outlet influenced so that the air flow after a short distance, i.e. about 1 m behind the guide vane outlet E, runs almost parallel to the impeller center axis 5.
  • the measured radiation angle ⁇ is therefore without in the fan impeller 2 downstream guide vane ring 3 along the impeller radius everywhere negative, what means that the air jets emerging from the fan are not bundled, but diverge away from the impeller axis 5.
  • the guide vanes 13, 14 are adapted to the moving blades, i.e. the vector of the Exit speed of the impeller 2 occurs tangentially in the stator or Guide vane ring 3.
  • the vector is deflected by the curvature, so that it almost leaves the guide vane ring 3 parallel to the impeller axis of rotation 5, as in FIG. 1 seen.
  • the guide vanes 13, 14 of the guide vane ring 3 start from their front edge V, at which the incident beam S 1 enters the guide vane ring tangentially to the blade surface 19, 20, up to their rear edge E, at which the exit jet S 2 leaves the vane ring tangent to the blade surface, continuously curved flat.
  • This curvature corresponds to an arc of a radius R.
  • the angle of curvature ⁇ of the guide vanes 13, 14 between the leading edge V and the trailing edge E of the blade is approximately 63 ° and is determined by the intersection point C of the two solders L 1 and L 2 onto the incident beam S 1 at Blade leading edge V and the discharge jet S 2 on the guide blade trailing edge E.
  • the straight line G through the two intersections of the solders L 1 and L 2 with the incident beam S 1 and the outgoing beam S 2 on the blade leading edge V and the blade trailing edge E forms an angle ⁇ of 111 ° with the two blade edges.
  • the particular embodiment of the guide vane ring 3 shown in FIG. 3 is not only characterized by that mentioned in connection with FIG. 2 Outer ring pitch AR of 103 mm and inner ring pitch IR of 62.8 mm for one Guide vane number of twenty-five, but also by the feature that the width T of the guide vane ring, which is from its air inlet side 8 and its air outlet side 7 is limited to 55 mm, the width F of the foot 12 of the guide vanes 62.7 mm and the width S the tip 11 of the guide vanes be 46.7 mm.
  • the Guide vane front 10 formed straight and runs in the circumferential direction Impeller center axis 5 inclined, while the rear 9 of the guide vanes 13, 14 is also straight, but is aligned in the circumferential direction perpendicular to the axis of rotation 5.
  • This hook-like attachment by clipping can be done, for example Demand cost reasons, also replace with cable tie wires, not shown, so that the protective grille can be removed from the guide vane ring at any time if for example the guide vane ring, which is known to be fixed in relation to the impeller, should be exchanged or replaced because of different throwing distances of the impeller Leaving airflow or, for example, a repair of the Guide vane ring is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP03009743A 2002-05-27 2003-05-05 Ventilateur en particulier pour refroidisseurs d'air avec capot de ventilateur Expired - Lifetime EP1367262B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20208250U 2002-05-27
DE20208250U DE20208250U1 (de) 2002-05-27 2002-05-27 Berührungsschutz für Ventilatoren, insbesondere von Luftkühlern

Publications (3)

Publication Number Publication Date
EP1367262A2 true EP1367262A2 (fr) 2003-12-03
EP1367262A3 EP1367262A3 (fr) 2004-10-13
EP1367262B1 EP1367262B1 (fr) 2006-11-02

Family

ID=28799105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009743A Expired - Lifetime EP1367262B1 (fr) 2002-05-27 2003-05-05 Ventilateur en particulier pour refroidisseurs d'air avec capot de ventilateur

Country Status (4)

Country Link
EP (1) EP1367262B1 (fr)
AT (1) ATE344392T1 (fr)
DE (2) DE20208250U1 (fr)
DK (1) DK1367262T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101440A1 (fr) * 2010-02-18 2011-08-25 Behr Gmbh & Co. Kg Dispositif de guidage d'air pour un ventilateur
CN107477027A (zh) * 2016-06-08 2017-12-15 施乐百欧洲公司 风扇单元
CN108708877A (zh) * 2013-12-04 2018-10-26 松下知识产权经营株式会社 风机和装载有该风机的室外单元

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE422619T1 (de) * 2006-08-30 2009-02-15 Ralf Meier Strömungsgleichrichter für einen ventilator
DE102017209291A1 (de) 2017-06-01 2018-12-06 Ziehl-Abegg Se Ventilator und Vorleitgitter für einen Ventilator
CN112523794B (zh) * 2020-12-01 2023-11-28 淮南市百邦气动科技有限公司 一种风门电控装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9002321U1 (de) 1989-03-02 1990-05-03 Süd-Electric GmbH, 8011 Kirchseeon Ventilator
DE8816827U1 (de) 1988-08-04 1990-10-18 KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH, 8021 Baierbrunn Luftkühler mit Leitgitter
EP0477612A2 (fr) 1990-09-26 1992-04-01 KÜBA KÄLTETECHNIK GmbH Refroidisseur d'air
DE9422006U1 (de) 1994-02-10 1997-07-31 Hans Güntner GmbH, 82256 Fürstenfeldbruck Schutzgittervorrichtung für Ventilatoren, insbesondere von Luftkühlern

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345539A1 (de) * 1973-09-10 1975-03-20 Siemens Ag Schutzgitter fuer axialluefter
FR2492477A1 (fr) * 1980-10-17 1982-04-23 Unite Hermetique Dispositif de protection pour ventilateur axial et ventilateur axial comportant un tel dispositif
TW486043U (en) * 2000-11-16 2002-05-01 Delta Electronics Inc Fast removable fan shield and mounting plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8816827U1 (de) 1988-08-04 1990-10-18 KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH, 8021 Baierbrunn Luftkühler mit Leitgitter
DE9002321U1 (de) 1989-03-02 1990-05-03 Süd-Electric GmbH, 8011 Kirchseeon Ventilator
EP0477612A2 (fr) 1990-09-26 1992-04-01 KÜBA KÄLTETECHNIK GmbH Refroidisseur d'air
DE9422006U1 (de) 1994-02-10 1997-07-31 Hans Güntner GmbH, 82256 Fürstenfeldbruck Schutzgittervorrichtung für Ventilatoren, insbesondere von Luftkühlern

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101440A1 (fr) * 2010-02-18 2011-08-25 Behr Gmbh & Co. Kg Dispositif de guidage d'air pour un ventilateur
CN108708877A (zh) * 2013-12-04 2018-10-26 松下知识产权经营株式会社 风机和装载有该风机的室外单元
CN107477027A (zh) * 2016-06-08 2017-12-15 施乐百欧洲公司 风扇单元
US11067309B2 (en) 2016-06-08 2021-07-20 Ziehl-Abegg Se Ventilator unit
CN107477027B (zh) * 2016-06-08 2021-10-29 施乐百欧洲公司 风扇单元

Also Published As

Publication number Publication date
ATE344392T1 (de) 2006-11-15
DE20208250U1 (de) 2003-10-02
EP1367262B1 (fr) 2006-11-02
DE50305542D1 (de) 2006-12-14
EP1367262A3 (fr) 2004-10-13
DK1367262T3 (da) 2007-03-05

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