EP3751145A1 - Dispositif de ventilateur - Google Patents

Dispositif de ventilateur Download PDF

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Publication number
EP3751145A1
EP3751145A1 EP20178160.6A EP20178160A EP3751145A1 EP 3751145 A1 EP3751145 A1 EP 3751145A1 EP 20178160 A EP20178160 A EP 20178160A EP 3751145 A1 EP3751145 A1 EP 3751145A1
Authority
EP
European Patent Office
Prior art keywords
cover plate
fan
frame
fan device
wall
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.)
Pending
Application number
EP20178160.6A
Other languages
German (de)
English (en)
Inventor
Johannes Anschütz
Daniel Schultz
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.)
Nicotra Gebhardt GmbH
Original Assignee
Nicotra Gebhardt 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 Nicotra Gebhardt GmbH filed Critical Nicotra Gebhardt GmbH
Publication of EP3751145A1 publication Critical patent/EP3751145A1/fr
Pending 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
    • F04D29/42—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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • 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
    • 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
    • F04D29/288—Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial 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
    • 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
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed

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 around the impeller in a circumferential direction and is equipped with several arcuate wall sections Air discharge openings limited, each of the air discharge openings being assigned an arcuate wall section of the guide wall, the fan housing having a front cover plate equipped with an air intake opening and a rear cover plate arranged downstream of the front cover plate in relation to the flow direction, and a frame-shaped peripheral wall around the guide wall Outer housing is arranged, which on its rear side is a rear frame opening located in front of the rear cover plate and serves as an outlet opening, and on its front side a front frame opening has.
  • centrifugal fans can be classified into two different categories: One group consists of centrifugal fans with a spiral casing and the other group of free-running centrifugal fans.
  • the scroll 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) through the constant expansion of the cross section in the direction of flow (diffuser effect). With 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. To increase the static efficiency, diffusers are already known in which the top and bottom disks of the impeller have outer edge areas protruding beyond the blade outlet knife.
  • a fan device of the type mentioned is for example from DE 10 2015 226 575 A1 known.
  • the fan device has a fan housing in which an impeller is driven to rotate about an axis of rotation.
  • the fan housing has a guide wall extending around the impeller in a spiral shape in a circumferential direction.
  • the baffle has spiral-shaped baffle segments, each of which merges into its own air discharge opening, such that the fan housing has a plurality of air discharge openings distributed in the circumferential direction of the impeller. It is also disclosed to insert the radial fan in an air conditioning housing, for example an air conditioning box or air conditioning duct, 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 object of the invention is to create a fan device of the type mentioned at the beginning, which has a simple structure, requires few components and is therefore inexpensive can be produced. Furthermore, the advantages of free-running centrifugal fans are to be combined with the mode of operation of classic housing fans.
  • the fan device according to the invention is characterized in that the front cover plate of the fan housing at the same time forms a front end wall of the outer housing that projects beyond the guide wall and with which the fan housing is fastened to the frame-shaped peripheral wall of the outer housing in the area of the front frame opening by means of fastening means.
  • the fan device manages with a few components, since in particular the front cover plate of the fan housing simultaneously forms the front end wall of the outer housing.
  • the fan housing can therefore be flanged on the front side of the frame-shaped peripheral wall of the outer housing via the front cover plate. The assembly of such units can be carried out easily and relatively quickly and is therefore inexpensive.
  • the fan device is a directly driven radial fan with air guiding devices in spiral form.
  • the fan device according to the invention is suitable, for example, as a so-called “filter fan unit” for use in clean rooms.
  • the front and rear frame openings have an opening cross-section of essentially the same size. This makes it possible for the frame-shaped peripheral wall of the outer housing is designed as a pure frame part, without end-face end walls.
  • the front cover plate forming the front end wall of the outer housing projects all around beyond the opening cross section of the front frame opening and is fastened by means of the fastening means to the front end edge of the frame-shaped or frame-like peripheral wall.
  • the frame-like peripheral wall can thus serve as a type of flange to which the front cover plate is attached and fastened.
  • the fastening means are preferably screw fastening means, in particular fastening screws and associated fastening holes on the one hand on the front cover plate and on the other hand on the front edge of the peripheral wall.
  • the front cover plate it would also be possible for the front cover plate to have an outline area that is smaller than the opening cross-section of the front frame opening and an in particular circumferential contact web is formed on the inside of the frame-shaped peripheral wall, which is then used to fasten the front cover plate.
  • the frame-shaped peripheral wall of the outer housing has a rectangular, in particular square, cross section.
  • the frame-shaped peripheral wall it would also be possible for the frame-shaped peripheral wall to be designed as a cylinder.
  • the frame-shaped circumferential wall consists of several circumferential wall elements connected to one another by means of connecting means.
  • the connection means are preferably screw connection means, in particular on the peripheral wall elements formed mutually corresponding fastening holes and associated fastening screws.
  • the frame-shaped peripheral wall is a one-piece component.
  • the front cover plate of the fan housing forming the front end wall of the outer housing has a larger outline area than the rear cover plate of the fan housing, the outline area of the rear cover plate being smaller than the cross section of the front frame opening, such that the radial fan with its Fan housing is inserted as a uniformly manageable assembly with the rear cover plate in front in a receiving space known laterally by the frame-like peripheral wall.
  • the outline area in the sense of the application is understood to mean the area which is spanned by the outline of the relevant component, that is to say in particular the cover plates.
  • the front cover plate has at least one handle.
  • the fan housing which is designed as a uniformly manageable assembly, can thus be transported in a simple manner and inserted into the receiving space.
  • four carrying handles assigned to the respective corners of the front cover plate are formed.
  • the guide wall is fastened by means of guide wall fastening means on the one hand to the front cover plate and on the other hand to the rear cover plate.
  • the guide wall fastening means are expediently designed as screw fastening means, with fastening holes formed on the guide wall and corresponding fastening holes on the one hand on the front and on the other on the rear cover plate and the associated fastening screws.
  • the guide wall is constructed from a plurality of guide wall elements which are designed as separate components and which form the arched wall sections.
  • the guide wall elements each have an arcuate base section and web-shaped fastening sections arranged opposite one another on the longitudinal edges of the base section and each extending in the plane of the cover plates for fastening to the associated cover plate.
  • the base section of the guide wall element is preferably arranged opposite the outlet cross section of the impeller in such a way that air blown out radially is guided in a spiral shape to the associated air blowout openings.
  • the front end-face ends of the base section of the guide wall element with the rear end-face ends of the adjacent guide wall element each form lateral boundaries for the air outlet openings.
  • the upper and lower boundaries for the air outlet openings then form the rear and the front cover plate.
  • front end-face ends of the base sections of the guide wall elements prefferably have an end section that is bent over with respect to the rest of the base section.
  • the web-shaped fastening sections assigned to the front cover plate are fastened directly to the inside of the front cover plate or indirectly through an intermediate fastening plate on which the fastening sections on the one hand are attached and the other is attached to the inside of the front cover plate.
  • At least two of the air outlet openings are diametrically opposite one another with respect to the axis of rotation of the impeller.
  • the air outlet openings each have an opening surface which is oriented at an angle, in particular at an angle of ⁇ 90 °, to an associated side edge of the front cover plate.
  • a fastening interface for fastening a filter element is formed in the region of the rear face end of the frame-shaped peripheral wall.
  • a filter element is attached to the attachment interface.
  • the Figures 1 to 8 show a preferred exemplary embodiment of the fan device 11 according to the invention.
  • a fan device is suitable for use in air conditioning and ventilation technology, the area of use being clean room technology in particular.
  • clean rooms are designed which ensure that a certain number of particles per cubic meter of air is not exceeded.
  • such clean rooms are designed in such a way that a large number of so-called “filter fan units” are arranged on a clean room grid ceiling, which makes it possible to generate a so-called “laminar flow”, that is, air that The flow out of the filter fan unit emerges in the form of a laminar flow, which, in contrast to a turbulent flow, prevents particles from being whirled up.
  • laminar flow that is, air that The flow out of the filter fan unit emerges in the form of a laminar flow, which, in contrast to a turbulent flow, prevents particles from being whirled up.
  • the fan device 11 according to the invention is therefore particularly suitable for such clean rooms and can therefore be used there as a filter fan unit. However, it is of course possible to use the fan device 11 according to the invention in other areas in air conditioning and ventilation technology.
  • the fan device is to be explained in the form of a filter fan unit.
  • An important component of the fan device 11 is a radial fan 12 which has a fan housing 13 in which an impeller 14 driven about an axis of rotation is arranged.
  • the impeller 14 has a blade ring 15, which consists of several blades 16 which, for example, can be inclined from the inside to the outside against the running direction, in particular curved in an arc or alternatively designed with a straight course.
  • the fan housing 13 has a baffle 18, which extends around the impeller 14 in a circumferential direction 17, is equipped with a plurality of arcuate wall sections and delimits the air outlet openings 19a-d, with each of the air outlet openings 19a-d being assigned an arcuate wall section of the guide wall 18.
  • the fan housing 13 also has a rear cover plate 20a and a front cover plate 20b equipped with an air intake opening 21.
  • the guide wall 18 is made up of several canvas elements 22a-d which form the arched wall sections and are designed as separate components.
  • the guide wall elements 22a-d each have an arcuate base section 23 and, on the longitudinal edges 24 of the base section 23, opposing web-shaped fastening sections 25a, 25b, each extending in the plane of the cover plates 20a, 20b, for fastening to the associated cover plate 20a, 20b .
  • the guide wall elements 22a, 22b are expediently bent sheet metal parts, in particular metal sheet metal parts.
  • the fastening sections 25a, 25b can be connected in one piece to the base section and can be formed by bending over an originally flat base section.
  • the baffle wall elements 22a, 22b can also be curved by bending.
  • the fastening sections 25a, 25b each have two section areas, of which a first elongated section area 26 has two guide wall fastening holes 27 which interact with corresponding fastening holes 28 on the rear cover plate 20a, with the guide wall fastening holes 27 and the fastening holes 28 Fastening screws (not shown) protruding through the front cover plate 20a ensure that the relevant guide wall element 22a-d is fastened to the rear cover plate 20a.
  • the fastening sections 25a, 25b each have a further second section area 29, which, in contrast to the elongated first section area 26, has, for example, a single guide wall fastening hole 27.
  • the connection in the area of the second section area 29 to the rear cover plate 20a takes place in the same way as in the front first section area 26.
  • the other fastening section 25b which is assigned to the front cover plate 20b, is designed in the same way as the first fastening section 25a and has a first section area 26, which is relatively elongated, at which there are two guide wall fastening holes 27 and a further second section area 29 with, for example, a single fastening hole 27.
  • a respective baffle element 22a-d at the front end 30 of the base section 23 has an end section 31 which is bent over with respect to the rest of the base section 23.
  • the rear end 32 opposite the front end 30 is free of such an end section 31 and extends flat .
  • the fan housing 13 in the example shown has four air discharge openings 19a-d which are each arranged at the corners of the fan housing 13.
  • each front end face 30 of the base section 23 of a baffle element 22a-d with rear end face ends 32 of the adjacent baffle element form lateral boundaries for the air outlet openings 19a-d.
  • the upper and lower boundaries for the air discharge openings 19a-d are formed by the front and rear cover plates 20a, 20b.
  • four partial spirals are formed, each of which collects a portion of the air deflected radially by the impeller 14 and feeds the associated air blowout openings 19a-d.
  • the mouth surfaces 33 of the respective air discharge openings have a rectangular shape.
  • the front cover plate 20b has a larger outline area than the rear cover plate 20a, which leads to the advantages described below.
  • an outer housing 35 which is arranged around the guide wall 18.
  • the outer housing 35 has a frame-shaped peripheral wall 36 which, on its rear side 37, has a rear frame opening 38a, which is positioned in front of the rear cover plate 20a and serves as an outflow opening, and on its front side 39 has a front frame opening 38b.
  • the frame-shaped peripheral wall 36 has a square cross-section in the example.
  • the front and rear frame openings 38a, 38b have an opening cross-section that is essentially the same size.
  • the frame-shaped peripheral wall 36 consists of several peripheral wall elements 40a-d connected to one another by means of connecting means.
  • four circumferential wall elements 40a-d are provided, which are of the same length and are fastened to one another at their joints by means of the connecting means, which include connecting openings and associated connecting screws.
  • front cover plate 20b at the same time forms a front end wall of the outer housing 35 projecting all around the guide wall 18, with which the fan housing 13 is fastened in the region of the front frame opening 38b on the rear side by means of fastening means 41 to the frame-shaped peripheral wall 36 of the outer housing 35.
  • the front cover plate 20b of the fan housing 13, which forms the front end wall, has a larger outline area than the rear cover plate 20a, the outline area of the rear cover plate 20a being smaller than the cross section of the front frame opening 38b, in such a way that the fan housing 13 as a uniformly manageable assembly the rear cover plate 20a is inserted in advance into a receiving space 42 laterally limited by the frame-like peripheral wall 36.
  • fastening holes 43 are provided as fastening means on the front cover plate 20b, which are arranged in the edge region of the front cover plate 20b, in particular at regular intervals along the circumference of the front cover plate 20b.
  • the fastening holes 43 on the front cover plate 20b are aligned with the fastening holes on the upper edges of the peripheral wall elements 40a-40d and the front cover plate 20b is simply screwed to the upper edge of the frame-shaped peripheral wall 36 by means of fastening screws 44.
  • carrying handles 44 are located on the upper side of the front cover plate 20b.
  • four carrying handles 44 assigned to the respective corners of the front cover plate 20b are provided.
  • the rear cover plate 20a in contrast to the front cover plate 20b, which forms the rear end wall of the outer housing 35, has a non-square, in particular irregularly shaped contour surface which is adapted to the shape of the arcuate base sections 23 of the guide wall elements 22a-d.
  • stiffening areas 45 are formed on the rear cover plate 20a, which ensure that the vibrations caused by the impeller 14 are reduced.
  • the stiffening areas 45 are expediently circular material thickenings in the center of the rear cover plate 20a.
  • the rear cover plate 20a also has a particularly circular opening 46 via which electrical contact can be made with the impeller.
  • a control device 48 for controlling the impeller 14 is located on the outer housing, in particular on the front cover plate forming the front end wall, with contact being made by means of a cable routed between the control device 48 and the impeller 14 via the opening 46.
  • the air intake opening 21 is provided with an in particular circular grid 49. This prevents any parts that might damage the impeller from being sucked in.
  • the air outlet openings 19a-d form mouth surfaces 33 which are oriented at an angle, in particular at an angle of ⁇ 90 °, to an associated side edge of the front cover plate 20b. As in particular in Figure 6 is shown, so the rear cover plate 20a opposite to front cover plate 20b arranged rotated.
  • the inclined arrangement of the mouth surfaces 33 ensures that a wedge-shaped air discharge space 50 is formed between the outer surfaces of the guide wall elements 22a-d and the inner surfaces of the peripheral wall elements 40a-d for each air discharge opening 19a-d.
  • the distance between the mouth surface 33 at the respective air blow-out opening 19a-d and the corner of the associated peripheral wall 40a-d is greatest.
  • the fan device can be used as a filter fan unit in clean rooms.
  • a fastening interface 52 for fastening a filter element is formed in the area of the rear end of the frame-like peripheral wall. As in particular in Figure 3 As shown, such an air filter is attached to the attachment interface 52. In this case, the air filter is connected downstream of the rear frame opening in the direction of flow.
  • the uniformly manageable radial fan assembly can be attached to the upper edges of the frame-like peripheral wall 36 and connected to the peripheral wall elements 40 in a simple manner by manipulating the carrying handles 44.
  • the impeller with the rear cover plate 20a protrudes into the receiving space 42.
  • air is drawn in axially via the air intake opening 21 and reaches the impeller 14, where it is deflected radially and is blown out radially at the outer diameter of the blade ring 15.
  • the air blown out radially then reaches a blow-out zone and is blown out through the guide wall elements at the air blow-out openings 19a-d and then reaches the wedge-shaped air blow-out spaces 50.
  • the blown air is deflected on the inside of the peripheral wall 36 and then reaches the outflow opening which is provided with the filter element 51 mentioned above.
  • the air is then blown out of the fan device 11 via the filter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20178160.6A 2019-06-11 2020-06-04 Dispositif de ventilateur Pending EP3751145A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019208437.0A DE102019208437A1 (de) 2019-06-11 2019-06-11 Ventilatoreinrichtung

Publications (1)

Publication Number Publication Date
EP3751145A1 true EP3751145A1 (fr) 2020-12-16

Family

ID=70977745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20178160.6A Pending EP3751145A1 (fr) 2019-06-11 2020-06-04 Dispositif de ventilateur

Country Status (4)

Country Link
US (1) US11181122B2 (fr)
EP (1) EP3751145A1 (fr)
DE (1) DE102019208437A1 (fr)
TW (1) TW202106982A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11746798B2 (en) * 2020-11-24 2023-09-05 Delta Electronics, Inc. Centrifugal fan
IT202000031835A1 (it) * 2020-12-22 2022-06-22 Edf Europe S R L Dispositivo di aspirazione
CN112957833A (zh) * 2021-03-10 2021-06-15 惠亚科技（苏州）有限公司 一种过滤设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3513902A1 (de) * 1984-04-17 1985-10-24 Environmental Air Control, Inc., Hagerstown, Md. Raumsparende anordnung von geblaese und filter zur verwendung in reinluftbereichen
DE102005062523A1 (de) * 2005-12-19 2007-06-21 M+W Zander Holding Ag Filter-Ventilator-Einheit
DE102006012356A1 (de) * 2006-03-17 2007-09-20 Gebhardt Ventilatoren Gmbh & Co. Kg Ventilatoreinheit
DE102015226575A1 (de) 2015-12-22 2017-06-22 Nicotra Gebhardt GmbH Ventilatoreinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330938A (en) * 1941-11-14 1943-10-05 Torrington Mfg Co Multiple outlet blower assembly
US3211360A (en) * 1963-12-05 1965-10-12 Kooltronic Fan Company Dual cutoff blower
US3950112A (en) * 1974-04-08 1976-04-13 Robert F. Crump Fluid moving devices with modular chamber-forming means and multiple outlets
US5803721A (en) * 1996-10-29 1998-09-08 Enviroflex, Inc. Clean room fan unit
EP1019659B1 (fr) * 1997-09-03 2004-01-21 Kyodo-Allied Industries Limited Procede et appareil pour minimiser le bruit provenant d'une unite de filtrage a soufflerie
DE102018211809A1 (de) * 2018-07-16 2020-01-16 Ziehl-Abegg Se Gehäuse für einen Ventilator und Ventilator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3513902A1 (de) * 1984-04-17 1985-10-24 Environmental Air Control, Inc., Hagerstown, Md. Raumsparende anordnung von geblaese und filter zur verwendung in reinluftbereichen
DE102005062523A1 (de) * 2005-12-19 2007-06-21 M+W Zander Holding Ag Filter-Ventilator-Einheit
DE102006012356A1 (de) * 2006-03-17 2007-09-20 Gebhardt Ventilatoren Gmbh & Co. Kg Ventilatoreinheit
DE102015226575A1 (de) 2015-12-22 2017-06-22 Nicotra Gebhardt GmbH Ventilatoreinrichtung

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TW202106982A (zh) 2021-02-16
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