EP1703139B1 - Ventilateur centrifugal - Google Patents

Ventilateur centrifugal Download PDF

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Publication number
EP1703139B1
EP1703139B1 EP06004223A EP06004223A EP1703139B1 EP 1703139 B1 EP1703139 B1 EP 1703139B1 EP 06004223 A EP06004223 A EP 06004223A EP 06004223 A EP06004223 A EP 06004223A EP 1703139 B1 EP1703139 B1 EP 1703139B1
Authority
EP
European Patent Office
Prior art keywords
radial fan
fan according
casing
side part
radial
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.)
Active
Application number
EP06004223A
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German (de)
English (en)
Other versions
EP1703139A1 (fr
Inventor
Rudolf Tungl
Roland Keber
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.)
Ebm Papst Landshut GmbH
Original Assignee
Ebm Papst Landshut GmbH
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Filing date
Publication date
Application filed by Ebm Papst Landshut GmbH filed Critical Ebm Papst Landshut GmbH
Publication of EP1703139A1 publication Critical patent/EP1703139A1/fr
Application granted granted Critical
Publication of EP1703139B1 publication Critical patent/EP1703139B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues

Definitions

  • the invention relates to a radial fan with a side part and a pot-like housing part having housing and a fan arranged in the housing, with radially extending blades.
  • Such devices for conveying gaseous media are generally used in devices which have a large flow resistance.
  • These can be ceramic surface burners, which are used in the latest development in gas boilers.
  • Such gas boilers have a flow resistance of the order of 200 pascals and more. To overcome the large flow resistance, efforts are being made to produce the steepest possible pressure volume flow characteristics in a radial fan.
  • Radial blower of the type mentioned are known in the art. So is in the EP 0 410 271 A2 a device for conveying a gaseous medium known in which the housing part has a holder for the electric motor and the side part is provided with an inlet opening for the influx of the blower air.
  • the invention has for its object to provide a radial fan, which is particularly space-saving, inexpensive and easy to manufacture with the same performance.
  • the shape in the housing part is greater than in the side part.
  • the ratio height / diameter of the housing between 1: 7 and 1: 9 is selected. It is particularly advantageous if the ratio height / diameter of the housing is 1: 8.
  • a favorable embodiment can provide that the blow-out channel is formed on the housing part.
  • the housing has a protruding into the pressure chamber in tongue. It is favorable that the tongue is formed on the housing part in the form of a ramp which rises on the side wall of the housing part in the flow direction. By attaching a tongue, the pressure chamber is shielded in the blower against the fan, so that pressure losses can be reduced.
  • the tongue may be formed on the side part in the form of a ramp and to rise in the direction of flow toward the housing part.
  • the tongue By forming the tongue as a ramp, the gap between the fan and the side wall of the housing part can be reduced, without causing an increase in the noise level.
  • blower in a further embodiment of the blower can be provided to use a fan with a hub and a front cover plate, in which case the blades of the fan are held only on the hub and the cover plate.
  • a rear carrier disc can be omitted. This results in a cost-effective production of the fan and thus the radial fan as a whole.
  • a radial fan is shown in side view, which has a housing 4 in which a fan 5 is received.
  • the housing 4 consists of a side part 2 and a pot-like housing part 3.
  • an electric motor 7 is vibration-damped, which drives the fan 5 via its motor shaft.
  • the housing has a, in conjunction with Fig. 3 closer described pressure chamber 8.
  • the fan 5 forms together with the pressure chamber 8, as also in Fig. 3 an idealized Venturi nozzle, wherein the narrowest cross-section of this Venturi nozzle in the transition between the fan and the housing is located.
  • the formation 19 is larger in the illustrated embodiment in the housing part 3 as in the side part. 2
  • Fig. 2 is a Forderansicht the radial fan shown.
  • it is in the illustrated embodiment is a fan with backward curved blades.
  • a connection 12 in the form of a flange 12 is provided at the free end of the Ausblashimnals 13 .
  • the plane 11 of the terminal 12 forms in the illustrated embodiment with the theoretical blow-out direction - arrow A - an angle ⁇ ⁇ 90 °.
  • the angle ⁇ 86.4 °.
  • Fig. 3 is schematically illustrated the blower housing 4, in which the fan 5 is used.
  • the spiral pressure chamber is shielded in the region of the blow-out channel 13 by the tongue 14 against the fan 5.
  • ⁇ 3.6 °
  • the ratio H (largest blade height) to D (diameter of the spiral) in the illustrated embodiment is 0.12. It has been found during test series that deviations from this ratio still provide useful results, however, the value of 0.12 for a spiral diameter of 145.3 mm and a required volumetric flow rate of 11 I / s is the optimum measure. This power is achieved at a speed of 5250 rpm and a shaft power of 21 W.
  • Fig. 4 is schematically reproduced the venturi nozzle principle, wherein the area 9 as a fan wheel space in addition to the speed of the fan through the structural design, a further acceleration of the air flow causes, whereas the pressure chamber 8 causes the pressure increase and calm the air flow.
  • the fan 5 is provided with a hub 17, wherein the blades 6 are held on the hub 17 and on a cover plate 18. It is understood that according to desired performance requirements, other fan wheels can be used.

Claims (16)

  1. Ventilateur radial (1) avec un carter (4) présentant une partie latérale (2) et une partie de carter en forme de pot (3), une roue de ventilateur (5) disposée à l'intérieur avec des pales s'étendant radialement (6), un moteur électrique (7) disposé sur la partie latérale et une chambre de pression (8) formée par la partie de carter et la partie latérale, caractérisé en ce que la chambre de pression forme avec la chambre de roue de ventilateur entre les pâles (6) en coupe transversale une buse (8') du type buse Venturi et le rapport de la plus grande hauteur de pâle (H)/ et le plus grand diamètre (D) des spirales est compris sensiblement entre H/D = 0,08 et H/D = 0,3.
  2. Ventilateur radial selon la revendication 1, caractérisé en ce que le rapport de la plus grande hauteur de pâle (H)/ et le plus grand diamètre (D) des spirales s'élève de préférence à H/D = 0,1 et particulièrement de préférence H/D = 0,12.
  3. Ventilateur radial selon la revendication 1 ou 2, caractérisé en ce que dans la partie de carter (3) et/ou dans la partie latérale (2) sont ménagées des déformations (19) qui agrandissent la chambre de pression spiralée (8) en continu de manière tridimensionnelle.
  4. Ventilateur radial selon la revendication 3, caractérisé en ce que la déformation (19) est plus grande dans la partie de carter (3) que dans la partie latérale (2).
  5. Ventilateur radial selon l'un des revendications précédentes, caractérisé en ce que le rapport hauteur/diamètre du carter (4) est compris entre 1:7 et 1:9.
  6. Ventilateur radial selon la revendication 5, caractérisé en ce que le rapport hauteur/diamètre du carter (4) s'élève sensiblement à 1:8.
  7. Ventilateur radial selon l'une des revendications précédentes, caractérisé en ce que pour un nombre de tours d'environ n= 5250, il est fourni un débit volumique d'air d'environ 11 l/s.
  8. Ventilateur radial selon l'une des revendications précédentes, caractérisé en ce que les nombres caractéristiques de l/s= 11 (débit volumique) et Pa=1050 (pression) sont atteints pour un nombre de tours n=5250 et une puissance torsiométrique d'environ 21 W.
  9. Ventilateur radial selon l'une des revendications précédentes, caractérisé en ce que le plan (11) du raccordement (12) sur le canal de soufflage (13) du carter (4) forme un angle de α ≤ 90° par rapport au sens de soufflage (flèche A).
  10. Ventilateur radial selon la revendication 9, caractérisé en ce que le plan du raccordement (12) au canal de soufflage (13) du carter (4) forme un angle 90° > α ≥ 83°, de préférence α = 86,4° par rapport au sens de soufflage (flèche A).
  11. Ventilateur radial selon l'une des revendications précédentes, caractérisé en ce que le canal de soufflage (13) est réalisé sur la partie de carter (3).
  12. Ventilateur radial selon l'un des revendications précédentes, caractérisé en ce que le carter (4) présente une languette (14) pénétrant dans la chambre de pression (8).
  13. Ventilateur radial selon la revendication 12, caractérisé en ce que la languette (14) est formée sur la partie de carter (3) sous forme d'une rampe (15) qui monte dans le sens d'écoulement sur la paroi latérale (16) de la partie de carter (3).
  14. Ventilateur radial selon la revendication 12, caractérisé en ce que la languette (14) est formée sur la partie latérale (2) sous forme d'une rampe (15) et qui monte dans le sens d'écoulement en direction de la partie de carter (3).
  15. Ventilateur radial selon au moins l'un des revendications précédentes, caractérisé en ce que la roue de ventilateur (5) présente un moyeu (17) et au moins une rondelle de recouvrement (18).
  16. Ventilateur radial selon la revendication 15, caractérisé en ce que seulement une rondelle de recouvrement (18) se trouve sur la roue de ventilateur (5) et les pâles (8) ne sont maintenues que sur le moyeu (17) et sur la rondelle unique de recouvrement (8).
EP06004223A 2005-03-14 2006-03-02 Ventilateur centrifugal Active EP1703139B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005004180U DE202005004180U1 (de) 2005-03-14 2005-03-14 Radialgebläse

Publications (2)

Publication Number Publication Date
EP1703139A1 EP1703139A1 (fr) 2006-09-20
EP1703139B1 true EP1703139B1 (fr) 2011-01-26

Family

ID=36678521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004223A Active EP1703139B1 (fr) 2005-03-14 2006-03-02 Ventilateur centrifugal

Country Status (5)

Country Link
US (1) US8257034B2 (fr)
EP (1) EP1703139B1 (fr)
AT (1) ATE497109T1 (fr)
DE (2) DE202005004180U1 (fr)
ES (1) ES2360580T3 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
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US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance

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JP5739981B2 (ja) 2010-04-06 2015-06-24 スリーエム イノベイティブ プロパティズ カンパニー 成形スクロールプロファイルを有する放射ブロワー
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
EP3139046B8 (fr) * 2015-09-07 2022-04-20 Emc Fime S.R.L. Soufflante électrique centrifuge
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

Also Published As

Publication number Publication date
EP1703139A1 (fr) 2006-09-20
DE202005004180U1 (de) 2006-07-27
US20060204382A1 (en) 2006-09-14
US8257034B2 (en) 2012-09-04
ATE497109T1 (de) 2011-02-15
ES2360580T3 (es) 2011-06-07
DE502006008789D1 (de) 2011-03-10

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