EP3184826B1 - Dispositif de ventilateur - Google Patents

Dispositif de ventilateur Download PDF

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Publication number
EP3184826B1
EP3184826B1 EP16197476.1A EP16197476A EP3184826B1 EP 3184826 B1 EP3184826 B1 EP 3184826B1 EP 16197476 A EP16197476 A EP 16197476A EP 3184826 B1 EP3184826 B1 EP 3184826B1
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EP
European Patent Office
Prior art keywords
fan
housing
air
guide wall
impeller
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
EP16197476.1A
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German (de)
English (en)
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EP3184826A1 (fr
Inventor
Klaus Gundel
Thomas Heigold
Walter Müller
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Nicotra Gebhardt GmbH
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Nicotra Gebhardt GmbH
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Publication date
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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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • 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
    • F04D29/4226—Fan casings
    • F04D29/4246—Fan casings comprising more than one outlet
    • 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

Definitions

  • the invention relates to a fan device, with at least one radial fan, with a fan housing, in which an impeller driven in rotation about an axis of rotation is arranged, the fan housing having a guide wall which extends spirally around in a circumferential direction of the impeller and merges into an air outlet opening, wherein the guide wall has guide wall segments of spiral design in the circumferential direction, each of which merges into its own air outlet opening, such that the fan housing has a plurality of air outlet openings arranged distributed in the circumferential direction of the impeller.
  • Centrifugal fans can basically be divided into two different categories: one group is made up of radial fans with a spiral casing and the other group is free-running radial fans.
  • the spiral casing of the centrifugal fans from the first group has two tasks. It collects the air flowing out of the impeller, leads it to a common outlet and converts part of the speed energy (dynamic pressure) into pressure energy (static pressure) due to the constant cross-sectional expansion in the direction of flow (diffuser effect). In the case of free-running centrifugal fans, the air in the impeller is deflected in the radial direction and flows out there at the blade outlet diameter of the impeller. For Diffusers are already known to increase the static efficiencies, in which the top and bottom disks of the impeller have outer edge regions which project beyond the blade outlet diameter.
  • EP 0091228 A1 and FR 2220158 A5 each disclose a fan device according to the preamble of claim 1.
  • the object of the invention is to provide a fan device of the type mentioned at the outset which, compared to conventional fan devices with a free-running centrifugal fan, has an improved efficiency with a compact design.
  • the fan device according to the invention is characterized by an air-conditioning housing in which the radial fan is accommodated, the radial fan being inserted into the air-conditioning housing in such a way that an outflow zone is formed between the air outlet openings and at least one associated air-conditioning housing wall of the air-conditioning housing.
  • the invention now chooses an approach to improve radial fans with a spiral housing in such a way that the advantages of the spiral housing - high stability, targeted air guidance - are maintained and the static efficiency is improved to such an extent that the fan device according to the invention with the radial fan with a spiral housing has a higher efficiency than that has free-running centrifugal fan.
  • the fan device according to the invention has at least two air outlet openings, ie the single spiral known from the prior art and formed by the spiral housing is divided into several partial spirals according to the invention by the segmented guide wall.
  • the air deflected radially in the impeller is therefore not collected in a spiral and conveyed to the air outlet opening, but rather is collected in several partial spirals and guided to the respective air outlet opening.
  • the fan device according to the invention is also suitable, with the same volume flow to be conveyed, compared to conventional radial fans with a spiral housing, due to the much more compact design, to be installed in any arrangement that enables free suction and free blowing, for example in smaller duct cross sections of ventilation or Air conditioning housings, for example air conditioning boxes or air conditioning ducts.
  • the guide wall segments each have an inner guide wall segment section and an outer guide wall segment section, the air outlet openings in each case being formed by the mutually adjacent inner and outer guide wall segment sections of the guide wall segments which are arranged directly in succession in the circumferential direction of the impeller.
  • the guide wall segments are curved on the outside in an arcuate manner, an air outlet connection projecting between each adjacent guide wall segment in the circumferential direction, the longitudinal axis of which is parallel or at an angle to one Tangent is aligned with the impeller.
  • at least two air outlet nozzles can be provided, each of which limit the air outlet openings.
  • the cross-sectional area of the air outlet openings is in particular rectangular, for example square.
  • At least two of the air outlet openings lie diametrically opposite one another with respect to the axis of rotation of the impeller.
  • the fan housing prefferably has a rectangular basic shape and for the air outlet openings to be located at the corner regions of the valve housing.
  • the fan housing could also be referred to as a quad housing.
  • the fan housing has a suction-side wall provided with a suction opening and a drive-side wall opposite this, to which a fan drive is assigned, the impeller being accommodated between the suction-side wall and the drive-side wall.
  • the drive-side wall has a fastening interface for fastening a fan drive.
  • centrifugal fans are with one Fan housing is more stable and is therefore suitable for direct attachment of the fan drive to the fan housing. Therefore, the combination of the fan housing and the impeller accommodated therein with the attached fan drive is more compact than the drive plus impeller for a free-running centrifugal fan.
  • the fan device has an air conditioning housing in which the radial fan is accommodated.
  • the climate housing can be, for example, a climate box, which can be part of a climate control center, for example.
  • the air conditioning housing can also be an air conditioning duct.
  • the radial fan is inserted into the air-conditioning housing in such a way that an outflow zone is formed between the air outlet openings and an associated air-conditioning housing wall of the air-conditioning housing.
  • the air conditioning housing has a plurality of, for example, four air conditioning housing walls, in particular at right angles to one another, each of which is assigned an air outlet opening of the radial fan.
  • the outlet surfaces of the air outlet openings and the associated air conditioning housing walls expediently form an angle, that is to say are not arranged parallel to one another, as a result of which an optimized air outlet can be achieved. It is therefore possible to insert the centrifugal fan a little bit rotated relative to the climate housing walls into the climate housing, as a result of which the air outlet openings in Direction of the corners between the adjacent climate housing walls can be focused.
  • the fan device has an intermediate ceiling hanging under a housing ceiling, in which the radial fan is accommodated.
  • the fan device prefferably has an intermediate floor which is arranged above a housing base and in which the radial fan is accommodated.
  • the Figures 1 and 2 show a first embodiment of the fan device 11 according to the invention.
  • the main component of the fan device 11 is a radial fan 12 which has a fan housing 13 in which an impeller 15 which is driven in rotation about an axis of rotation 14 is arranged.
  • the fan housing 13 is box-shaped and has two parallel side walls 17, 18 which are arranged at a distance from one another, the impeller 15 being accommodated in the space between the two side walls.
  • a suction side wall 17 is provided, which is provided with an inlet opening (not shown) which defines an intake diameter.
  • the inlet opening is located on the outside of the suction side wall 17, the area flowing through being able to widen in a trumpet shape, for example in accordance with the contour of the suction side wall 17.
  • the drive-side wall 18 is arranged opposite the suction-side wall 17.
  • the mounting interface 19 comprises a drive bracket 20 in the form of a mounting flange on which the fan drive 16 is mounted.
  • the fan drive 16 is preferably an electric motor, in particular a permanent magnet-excited synchronous motor. However, it is also possible to design the fan drive 16 as an asynchronous motor.
  • the drive carrier 20 together with the valve drive 16 can be mounted directly on the fan housing 13 at the fastening interface 19.
  • the flange-like drive carrier 20 is attached to the outside of the drive-side wall 18 and fastened there by means of suitable fastening means, for example screwed on using fastening screws.
  • the drive shaft of the fan drive 16 projects through an opening into the interior of the fan housing and carries the impeller 15 which, as mentioned, rotates in the interior of the fan housing 13 in the operating state.
  • the impeller 15 has a blade ring 21, which consists of a plurality of blades 22, which can be inclined, for example, from the inside to the outside in the direction of rotation.
  • the blades 22 are shown by way of example in the form of backward curved blades 22. Alternatively, however, it would also be possible to use straight blades 22 which are inclined backwards.
  • the fan housing 13 of the radial fan 12 is designed as a spiral housing, which has the task of collecting the air deflected in the radial direction by the impeller 15 and of leading it to a common air outlet, an air outlet opening 23. Part of the speed energy (dynamic pressure) is converted into pressure energy (static pressure) due to the constant cross-sectional expansion in the direction of flow.
  • the fan housing 13 has a guide wall 25 which extends spirally in a circumferential direction 24 of the impeller 15 and merges into the air outlet opening 23.
  • the guide wall 25 forms the peripheral end of the side walls 17, 18 and, together with these, forms the box-shaped fan housing 13.
  • the radial fan 12 now has a guide wall 25 which is segmented in the circumferential direction 24 and which has a plurality of guide wall segments 27a-d which are each of a spiral configuration and each of which merges into its own air outlet opening 23a-d, such that the fan housing 13 has a plurality in the circumferential direction of the Impeller 15 has distributed air outlet openings 23a-d.
  • the guide wall 25 is segmented into four guide wall segments 27a-d and there are four air outlet openings 23a-d distributed in the circumferential direction 24 of the impeller 15. It is of course possible for the number of guide wall segments 27a-d and the number of air outlet openings 23a-d to deviate from four, namely two, three or more than five in number.
  • the guide wall segments 27a-d each have an inner guide wall segment section 28a-d and an outer guide wall segment section 29a-d, the air discharge openings 23a-d of the mutually adjacent inner and outer guide wall segment sections 28a-d; 29a-d of the guide wall segments 27a-d arranged in direct succession in the circumferential direction 24 of the impeller 15 are formed.
  • the mouth surfaces of adjacent air outlet openings 23a-d are at right angles to each other.
  • the fan housing 13 has a rectangular, in particular square, basic shape, the guide wall segments 27a-d forming the peripheral sides of the rectangular-shaped fan housing 13.
  • two air outlet openings 27a, c and 27b, d lie opposite each other diametrically to the axis of rotation 14. Transferred to the cuboid or box-like fan housing 13, this means that the air outlet openings 23a-d each sit at the corner regions of the fan housing 13.
  • the guide wall segments 27a-d are each curved in the shape of an outside, an air outlet connector 30a-d projecting between guide wall segments 27a-d adjacent in the circumferential direction 24, the longitudinal axis of which is oriented parallel to or at an angle to a tangent to the impeller 15.
  • Each of these air outlet nozzles 30a-d represents the outlet area of a partial spiral, which in each case collects part of the air radially deflected by the impeller 15 and leads to the associated air outlet opening 23a-d.
  • the outlet levels of the air outlet spigot 30a-d protrude or be set back from the outer guide wall segment sections 29a-d.
  • the Figure 3 shows a schematic representation of a fan device from the prior art, in which the radial fan has a spiral housing with a single air outlet opening.
  • the same diagram shows the previously described first exemplary embodiment of the fan device 11 according to the invention, in which the fan housing 13 has four air outlet openings 23a-d which are arranged distributed in the circumferential direction 24 of the impeller 15.
  • FIG. 3 Shown is a second exemplary embodiment of the fan device 11 according to the invention, in which the fan housing 13 of the radial fan 12 has two air outlet openings 23a, b which are distributed in the circumferential direction 24 of the impeller 15.
  • the size of the fan devices 11 according to the invention is significantly smaller than that of the fan device from the prior art.
  • both the width B 'of the first embodiment and the width B "of the second embodiment are smaller than the width B of the spiral casing from the prior art.
  • the significantly more compact dimensions of the fan devices 11 according to the invention make it possible to use fan devices from the State of the art with the same volume flows a considerable saving in space requirements.
  • the Figure 7 shows a third exemplary embodiment of the fan device 11 according to the invention.
  • the fan device 11 of the third exemplary embodiment also comprises an air-conditioning housing 31 in which the radial fan 12 is installed.
  • the air conditioning housing 31 is shown by way of example in the form of an air conditioning box which has a rectangular, in particular square, cross section and, in the example shown, has four air conditioning housing walls 32a-d oriented at right angles to one another.
  • a partition wall (not shown) fastened in the air conditioning housing 31, to which the radial fan 12 can be attached by means of suitable fastening means.
  • the radial fan 12 is preferably attached to the partition wall on the suction side wall 17 of the fan housing 13.
  • a stand construction for example an L-shaped stand, or a foot construction.
  • each air-conditioning housing wall 32a-d is assigned an air outlet opening 23a-d of the radial fan 12.
  • the mouth surfaces of the air outlet openings 23a-d are not arranged parallel to the associated air-conditioning housing walls 32a-d, but form an angle with the assigned air-conditioning housing wall 32a-d.
  • the radial fan 12 is arranged in a rotational position with respect to the air conditioning housing walls 32a-d, in which the guide wall segments 27a-d are at an angle of 0 ° ⁇ ⁇ 90 °, in particular 5 ° ⁇ ⁇ 45 ° with respect to the associated climate housing walls 32a-d.
  • Such an arrangement of the radial fan 12 allows an optimized air outlet through the individual air outlet openings 23a-d.
  • the air outlet openings 23a-d and the air outlet ports 30a-d are aligned with their longitudinal axes in the direction of the corners between two adjacent air conditioning housing walls 32a-d.
  • a characteristic outflow zone thus forms between the air outlet openings 23a-d or between their outlet surfaces and the associated air conditioning housing walls 32a-d, which leads to low losses in the outlet area.
  • a climate box can be part of a climate control center, for example, which in addition to the radial fan 12 also contains other components, for example filters, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)

Claims (11)

  1. Ensemble ventilateur, avec au moins un ventilateur centrifuge (12), avec un carter de ventilateur (13), dans lequel est disposée une roue (15) entraînée en rotation autour d'un axe de rotation (14), dans lequel le carter de ventilateur (13) présente une paroi de guidage (25), s'étendant en forme de spirale dans une direction périphérique (24) de la roue (15) autour de celle-ci, qui passe dans une ouverture de soufflage d'air (23a-d), dans lequel la paroi de guidage (25) présente des segments de paroi de guidage (27a-d) réalisés en forme de spirale dans la direction périphérique (24), qui passent respectivement dans une ouverture de soufflage d'air (23a-d) propre, de telle sorte que le carter de ventilateur (13) présente une pluralité d'ouvertures de soufflage d'air (23a-d) disposées de manière répartie dans la direction périphérique (24) de la roue (15), caractérisé par un carter de climatisation (31), dans lequel le ventilateur centrifuge (12) est logé, dans lequel le ventilateur centrifuge est inséré dans le carter de climatisation, de telle sorte qu'une zone d'écoulement est formée entre les ouvertures de soufflage d'air et au moins une paroi de carter de climatisation associée du carter de climatisation.
  2. Ensemble ventilateur selon la revendication 1, caractérisé en ce que les segments de paroi de guidage (27a-d) présentent respectivement une partie de segment de paroi de guidage intérieure (28a-d) et une partie de segment de paroi de guidage extérieure (29a-d), dans lequel les ouvertures de soufflage d'air (23a-d) sont formées respectivement par les parties de segment de paroi de guidage intérieure et extérieure (28a-d) ; (29a-d) voisines les unes des autres des segments de paroi de guidage (27a-d) disposés respectivement directement à la suite les uns des autres dans la direction périphérique de la roue (15).
  3. Ensemble ventilateur selon la revendication 1 ou 2, caractérisé en ce que les segments de paroi de guidage (27a-d) sont courbés à l'extérieur en forme d'arc et respectivement une tubulure de soufflage d'air (30a-d), dont l'axe longitudinal est orienté parallèlement à une tangente à la roue (15), fait saillie entre des segments de paroi de guidage (27a-d) voisins dans la direction périphérique.
  4. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que, parmi les ouvertures de soufflage d'air (23a-d), au moins deux sont diamétralement opposées par rapport à l'axe de rotation (14) de la roue (15).
  5. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter de ventilateur (13) présente une forme de base rectangulaire et les ouvertures de soufflage d'air (23a-d) se trouvent sur les régions de coin du carter de ventilateur (13).
  6. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter de ventilateur (13) présente une paroi latérale côté aspiration (17) pourvue d'une ouverture d'aspiration et une paroi latérale côté entraînement (18) opposée à celle-ci, à laquelle est associé un entraînement de ventilateur (16), dans lequel la roue (15) est disposée entre la paroi latérale côté aspiration (17) et la paroi latérale côté entraînement (18).
  7. Ensemble ventilateur selon la revendication 6, caractérisé en ce que la paroi latérale côté entraînement (18) présente une interface de fixation (19), sur laquelle l'entraînement de ventilateur (16) peut être fixé ou est fixé.
  8. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter de climatisation (31) est réalisé sous la forme d'un caisson de climatisation ou d'un canal de climatisation.
  9. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le carter de climatisation (31) présente plusieurs, en particulier quatre parois de carter de climatisation (32a-d) orientées en particulier perpendiculairement les unes par rapport aux autres, auxquelles est associée respectivement une ouverture de soufflage (23a-d) du ventilateur centrifuge (12).
  10. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé par un plafond intermédiaire suspendu sous un plafond de carter, dans lequel est logé le ventilateur centrifuge (12).
  11. Ensemble ventilateur selon l'une quelconque des revendications précédentes, caractérisé par un fond intermédiaire, disposé au-dessus d'un fond de carter, dans lequel est logé le ventilateur centrifuge (12).
EP16197476.1A 2015-12-22 2016-11-07 Dispositif de ventilateur Active EP3184826B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015226575.7A DE102015226575C5 (de) 2015-12-22 2015-12-22 Ventilatoreinrichtung

Publications (2)

Publication Number Publication Date
EP3184826A1 EP3184826A1 (fr) 2017-06-28
EP3184826B1 true EP3184826B1 (fr) 2020-04-01

Family

ID=57249716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16197476.1A Active EP3184826B1 (fr) 2015-12-22 2016-11-07 Dispositif de ventilateur

Country Status (7)

Country Link
US (1) US10393123B2 (fr)
EP (1) EP3184826B1 (fr)
CN (1) CN106996395A (fr)
DE (1) DE102015226575C5 (fr)
DK (1) DK3184826T3 (fr)
ES (1) ES2796280T3 (fr)
TW (1) TWI726002B (fr)

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WO2024015994A1 (fr) * 2022-07-15 2024-01-18 Greenheck Fan Corporation Ensemble ventilateur

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JP6311377B2 (ja) * 2014-03-17 2018-04-18 株式会社デンソー シート空調システム
JP6319514B2 (ja) * 2015-04-28 2018-05-09 株式会社デンソー 送風機
GB2558171A (en) * 2016-03-18 2018-07-11 Cummins Generator Technologies Adaptor with improved airflow
EP3452155A4 (fr) * 2016-05-04 2019-12-25 Fisher&Paykel Healthcare Limited Système d'assistance respiratoire et ventilateur pour système d'assistance respiratoire
IT201700087339A1 (it) * 2017-07-28 2019-01-28 Hitachi Rail Italy S P A Gruppo motore elettrico per la trazione ferroviaria
DE102018211808A1 (de) * 2018-07-16 2020-01-16 Ziehl-Abegg Se Ventilator und Leiteinrichtung für einen Ventilator
DE102018211809A1 (de) 2018-07-16 2020-01-16 Ziehl-Abegg Se Gehäuse für einen Ventilator und Ventilator
DE102019208437A1 (de) 2019-06-11 2020-12-17 Nicotra Gebhardt GmbH Ventilatoreinrichtung
CN114876829A (zh) * 2022-04-18 2022-08-09 江苏科技大学 一种长条形盒状风扇灯及其工作方法
DE102022124201A1 (de) * 2022-09-21 2024-03-21 Ebm-Papst Mulfingen Gmbh & Co. Kg Radialventilator mit nachrüstbaren Luftleitsegmenten
DE102023105981A1 (de) 2023-03-10 2024-09-12 Rosenberg Ventilatoren Gmbh Gehäuse für eine Ventilatoreinrichtung und Ventilatoreinrichtung mit einem derartigen Gehäuse

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US20170175747A1 (en) 2017-06-22
US10393123B2 (en) 2019-08-27
EP3184826A1 (fr) 2017-06-28
DE102015226575B4 (de) 2017-06-29
TW201723321A (zh) 2017-07-01
DK3184826T3 (da) 2020-06-15
DE102015226575A1 (de) 2017-06-22
ES2796280T3 (es) 2020-11-26
CN106996395A (zh) 2017-08-01
DE102015226575C5 (de) 2024-05-29
TWI726002B (zh) 2021-05-01

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