EP0470517A1 - Radialventilator mit Axialgehäuse - Google Patents

Radialventilator mit Axialgehäuse Download PDF

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Publication number
EP0470517A1
EP0470517A1 EP91113013A EP91113013A EP0470517A1 EP 0470517 A1 EP0470517 A1 EP 0470517A1 EP 91113013 A EP91113013 A EP 91113013A EP 91113013 A EP91113013 A EP 91113013A EP 0470517 A1 EP0470517 A1 EP 0470517A1
Authority
EP
European Patent Office
Prior art keywords
housing
electric motor
impeller
radial fan
casing
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.)
Ceased
Application number
EP91113013A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rudolf Neuber
Karl Reither
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.)
KT Kunststofftechnik GmbH
Original Assignee
KT Kunststofftechnik 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 KT Kunststofftechnik GmbH filed Critical KT Kunststofftechnik GmbH
Publication of EP0470517A1 publication Critical patent/EP0470517A1/de
Ceased 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
    • 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
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D17/165—Axial entry and discharge
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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

Definitions

  • the invention relates to a radial fan with an axial housing, in particular for conveying chemically aggressive air and gases.
  • a circular cylindrical housing made of plastic which has a rotationally symmetrical inlet funnel at one end and an outlet funnel at its other end and, close behind the inlet funnel, comprises a plastic impeller which is arranged coaxially therewith and has openings on its circumference for approximately radial discharge of the air or gases conveyed through its curved guide vanes into the surrounding housing, the electric motor driving the impeller being located within a separately ventilated inner housing made of plastic which runs through the housing of the radial fan, sealed against it.
  • a radial fan has been described for example in DE-GM 84 16 415.
  • the invention has for its object to further develop the known centrifugal fan so that its housing can be easily detached and lifted off from the driving electric motor together with the inner housing, so that required maintenance work can be carried out comfortably on it.
  • the electric motor is supported by a support plate, which in turn is supported by four support columns attached to a base plate, and in that the housing is detachably connected to this base plate together with the inner housing firmly connected to it.
  • the inlet funnel of the housing and then the impeller located behind it can be removed in a few simple steps and then, after separating the outlet funnel from the subsequent pipeline, the housing of the centrifugal fan can be removed together with the inner housing, so that the Support columns and a support plate carried electric motor does not have to be removed.
  • the inner housing surrounding the electric motor can be ventilated in various ways.
  • the base plate carrying the support columns is at the same time the end plate of the inner housing and is preferably provided with openings for the entry of cooling air, while the air cooling the electric motor is discharged through exhaust pipes in the side walls of the inner housing which pass through the housing of the radial fan.
  • a belt drive which is connected between the electric motor and the impeller shaft is provided within the inner housing.
  • the motor shaft is then not used as the impeller shaft, but rather a separate shaft which is mounted separately in bearing blocks, the bearing blocks being carried by a support plate fastened to the support columns.
  • the radial fan shown in Fig. 1 has a substantially circular cylindrical housing 1 made of plastic with a rotationally symmetrical inlet funnel 4 at one end, which is supported by an surrounding inlet flange 4 'and is firmly connected to this.
  • the inlet flange is detachably inserted in a pipe section 3, which is located in the end wall 2 of the housing 1.
  • an outlet funnel 6 which merges into an outlet pipe 7 and has a circular or other cross section depending on the cross-sectional shape of the pipe to be connected.
  • an inner housing 8 made of plastic with a base plate 9.
  • This inner housing runs through the housing 1 in the transverse direction and is connected to it in an airtight manner.
  • the base plate 9 of the inner housing 8 protrudes from the casing of the housing 1.
  • the jacket of the inner housing 8 is detachably connected to the base plate 9, which is supported by two cross members 12, which in turn rest on support plates 10 via rubber rubbers 11. Depending on the type of installation of the centrifugal fan, these support plates can be attached to a horizontal, inclined or vertical surface.
  • An electric motor 17 is arranged below the support plate 15, the foot of which is screwed tightly to the support plate 15.
  • the electrical connections of the electric motor 17 are located in the terminal box 25, just above the support plate 14.
  • the motor shaft 18 extends through the opening of the front wall 19 of the inner housing 8.
  • This front wall is reinforced by a reinforcing plate 21 with a corresponding bore.
  • This reinforcing plate releasably carries an angle rail 16 for additional support of the support plate 15 supporting the motor 17 and is welded to it.
  • the motor shaft protrudes through the opening of the inner housing 8 into the housing 1 and carries at its free end a metal sleeve 23 onto which a support hub 24 made of plastic is pushed and firmly connected to it.
  • the metal sleeve 23 is cast into the support hub 24.
  • the metal sleeve is secured against rotation on the motor shaft 18 by means of a tongue and groove (not designated in any more detail), but can be removed from it if necessary.
  • the support hub 24 is coaxially connected to the impeller 22, which is also made of plastic.
  • the permanent connection is made by gluing.
  • the arrangement and dimensions are such that the impeller surrounds the inlet funnel 4 with its end facing away from the motor shaft 18, forming a narrow gap.
  • the pipe section 3, in which the inlet flange 4 'is inserted has an inner diameter which is larger than the outer diameter of the impeller and which permits its assembly or removal.
  • the base plate 9 is provided with a plurality of openings 28 for the entry of cooling air for the electric motor 17.
  • the air exits via one or more exhaust air pipes 26 which are closed off by perforated plates (not designated).
  • the housing 1 can be removed together with the inner housing 8 in a few simple steps.
  • the inlet flange 4 ' is first pulled out of the pipe section 3.
  • the screw with washer, which is introduced at the end into the motor shaft 18, is then removed and the impeller 22 is pulled off together with the support hub 24 and the metal sleeve 23 and removed from the housing 1.
  • the housing 1 together with the inner housing can be lifted off with a slight tilt, so that the front wall 19 with the reinforcing plate 21 can be pulled off the projecting end of the motor shaft 18.
  • the electric motor 17 with the terminal box 25 is freely accessible and can be serviced or replaced if necessary.
  • the motor shaft 18 also carries, close behind the reinforcing plate 21, a deflector disk 20 which prevents the ingress of air or gases from the housing 1 through the annular gap between the support hub 24 and the reinforcing plate 21.
  • FIG. 2 differs from that of FIG. 1 essentially in that the shaft 48 of the motor 47 is coupled to a separate impeller shaft 59 via a V-belt 64.
  • the electric motor 47 with terminal box 55 is in turn carried by four support threads 43 provided with an external thread via a support plate 45 screwed to them, while a further support plate 44 carries two bearing blocks 57 and 58 for an impeller shaft 59.
  • a metal sleeve 61 is pushed onto the free end of this impeller shaft, the impeller 52 being pushed onto the stepped free end thereof and firmly connected to it.
  • the metal sleeve 61 is surrounded by a sealing sleeve 63 made of a soft elastic plastic, which resiliently lies on its circumference against the rear side of the impeller 52.
  • a housing 31 with an end wall 32 and an inserted pipe piece 33 is also provided, into which an inlet flange 34 'with a welded-in inlet funnel is inserted.
  • a condensate drain 35 ensures that any condensate water that arises.
  • the housing 31 merges into an outlet pipe 37 via an outlet funnel 36.
  • an inner housing 38 which is detachably connected to a base plate 39 provided with openings 68.
  • the support columns 43 are screwed at their lower ends to the aforementioned angle rails and cross members 42, 42 'located below the base plate.
  • the crossbeams 42, 42 ' also rest here on (not designated) vibrating rubbers and support plates.
  • the inner housing 38 receiving the electric motor 47 and the impeller shaft 59 is reinforced by a reinforcing plate 51 where the impeller shaft 59 passes through the front wall 49.
  • the impeller shaft 59 carries a deflector disk 60 close to the opening of the reinforcing plate 51.
  • two exhaust pipes 56 and 56 ′ lead from the inner housing 38 on both sides of the impeller shaft 59 through the housing 31 to the outside, around the cooling air that flows through the openings 68 in the base plate 39 enters and flows past the electric motor 47 to lead outside.
  • These two exhaust pipes are closed by perforated plates 65 and 66, primarily to prevent the entry of foreign bodies.
  • an angle rail 46 is provided, which is welded with its one leg to the support plate 44, while the other leg lies against the reinforcement plate 51 and is connected to it by a screw (not shown) introduced from the outside.
  • the radial fans according to the invention described above can be designed both in the standard version in a horizontal or vertical installation position, and also in a built-in version with a mounting flange or as a roof fan.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP91113013A 1990-08-10 1991-08-02 Radialventilator mit Axialgehäuse Ceased EP0470517A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9011652U DE9011652U1 (zh) 1990-08-10 1990-08-10
DE9011652U 1990-08-10

Publications (1)

Publication Number Publication Date
EP0470517A1 true EP0470517A1 (de) 1992-02-12

Family

ID=6856394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113013A Ceased EP0470517A1 (de) 1990-08-10 1991-08-02 Radialventilator mit Axialgehäuse

Country Status (3)

Country Link
US (1) US5209639A (zh)
EP (1) EP0470517A1 (zh)
DE (1) DE9011652U1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931930A1 (fr) * 2008-06-03 2009-12-04 Aldes Aeraulique Caisson pour groupe moto-ventilateur
CN109058160A (zh) * 2018-10-18 2018-12-21 上海毕森流体设备有限公司 一种鼓风机
CN112780586A (zh) * 2019-11-08 2021-05-11 青岛海尔智能技术研发有限公司 燃气增压器及燃气设备

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5827044A (en) * 1997-03-26 1998-10-27 Yazici; Muammer Fan system with variable air volume control
DE10029679C1 (de) * 2000-06-23 2002-01-24 F W Carduck Gmbh Radialventilator
EP1455094A1 (de) * 2003-03-04 2004-09-08 Ziehl-Abegg AG Radiallüfterrad
CN102162470B (zh) * 2011-03-02 2013-11-06 吴澂喆 管道式轴流离心风机及离心导流方法
US10914316B1 (en) 2011-08-23 2021-02-09 Climatecraft, Inc. Plenum fan
US10125783B2 (en) * 2013-02-25 2018-11-13 Greenheck Fan Corporation Fan assembly and fan wheel assemblies
US10184488B2 (en) 2013-02-25 2019-01-22 Greenheck Fan Corporation Fan housing having flush mounted stator blades
EP2959170A2 (en) 2013-02-25 2015-12-30 Greenheck Fan Corporation Mixed flow fan assembly
KR20140131750A (ko) * 2013-05-06 2014-11-14 엘지전자 주식회사 원심팬
KR101645178B1 (ko) 2013-05-10 2016-08-03 엘지전자 주식회사 원심팬 및 원심팬의 제조방법
EP2829733B1 (en) 2013-05-10 2021-01-27 Lg Electronics Inc. Centrifugal fan
DE102015100021A1 (de) * 2014-01-10 2015-07-16 Johnson Electric S.A. Spülmaschine und Gebläse
CN104776041B (zh) * 2014-01-10 2019-07-02 德昌电机(深圳)有限公司 洗碗机及其抽气扇
DE102017116130A1 (de) * 2017-07-18 2019-01-24 Ka Group Ag Gehäuse für eine Strömungsmaschine, insbesondere für einen Radiallüfter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412929A (en) * 1966-12-06 1968-11-26 Greenheck Fan & Ventilator Cor Inline centrifugal fan
US3425621A (en) * 1967-08-23 1969-02-04 Greenheck Fan & Ventilator Cor Inline centrifugal fan with door
DE8416415U1 (de) * 1984-05-29 1984-08-02 Kunststofftechnik KG, 5210 Troisdorf Radialventilator mit Axialgehäuse
DE4021316A1 (de) * 1989-07-25 1991-02-07 Neuhaus Gerhard Ventilatoraggregat

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
GB816156A (en) * 1956-06-13 1959-07-08 Elemer Stern Improvements relating to mountings for the motors of sewing machine tables, stands for industrial machines and the like
US2601030A (en) * 1948-11-29 1952-06-17 Petersen Oven Co Centrifugal blower
US2689100A (en) * 1949-10-01 1954-09-14 American Safety Table Co Inc Motor mounting bracket
US3117770A (en) * 1961-04-19 1964-01-14 Crom B Campbell Combination air warming and centrifugal fan unit for transmitting heated air
US3326503A (en) * 1965-09-03 1967-06-20 Falk Corp Speed reducer mounting assembly
US3650633A (en) * 1970-11-30 1972-03-21 Remi A Benoit In-line centrifugal fan
US3752603A (en) * 1971-12-09 1973-08-14 Zenith Manuf Inc Motor driven centrifugal pump
US3950835A (en) * 1974-10-02 1976-04-20 Carrier Corporation Fan assembly and method of manufacturing same
NZ208191A (en) * 1983-05-18 1988-03-30 Seeley F F Nominees Two part volute-shaped fan casing including bearing housings with u-shaped support arms
US4787818A (en) * 1987-07-27 1988-11-29 Jenn Industries, Inc. Centrifugal blower assembly
US4836148A (en) * 1988-06-13 1989-06-06 General Motors Corporation Shrouding for engine cooling fans

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412929A (en) * 1966-12-06 1968-11-26 Greenheck Fan & Ventilator Cor Inline centrifugal fan
US3425621A (en) * 1967-08-23 1969-02-04 Greenheck Fan & Ventilator Cor Inline centrifugal fan with door
DE8416415U1 (de) * 1984-05-29 1984-08-02 Kunststofftechnik KG, 5210 Troisdorf Radialventilator mit Axialgehäuse
DE4021316A1 (de) * 1989-07-25 1991-02-07 Neuhaus Gerhard Ventilatoraggregat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2931930A1 (fr) * 2008-06-03 2009-12-04 Aldes Aeraulique Caisson pour groupe moto-ventilateur
CN109058160A (zh) * 2018-10-18 2018-12-21 上海毕森流体设备有限公司 一种鼓风机
CN109058160B (zh) * 2018-10-18 2024-04-12 上海毕森流体设备有限公司 一种鼓风机
CN112780586A (zh) * 2019-11-08 2021-05-11 青岛海尔智能技术研发有限公司 燃气增压器及燃气设备
CN112780586B (zh) * 2019-11-08 2024-02-27 青岛海尔智能技术研发有限公司 燃气增压器及燃气设备

Also Published As

Publication number Publication date
DE9011652U1 (zh) 1990-10-18
US5209639A (en) 1993-05-11

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