EP2700822A1 - Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration - Google Patents

Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration Download PDF

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Publication number
EP2700822A1
EP2700822A1 EP12181662.3A EP12181662A EP2700822A1 EP 2700822 A1 EP2700822 A1 EP 2700822A1 EP 12181662 A EP12181662 A EP 12181662A EP 2700822 A1 EP2700822 A1 EP 2700822A1
Authority
EP
European Patent Office
Prior art keywords
fan
wall elements
air inlet
openings
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12181662.3A
Other languages
German (de)
English (en)
Other versions
EP2700822B1 (fr
Inventor
Chris De Jong
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.)
Zehnder Group International AG
Original Assignee
Zehnder Verkaufs und Verwaltungs AG
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 Zehnder Verkaufs und Verwaltungs AG filed Critical Zehnder Verkaufs und Verwaltungs AG
Priority to EP12181662.3A priority Critical patent/EP2700822B1/fr
Priority to PL12181662T priority patent/PL2700822T3/pl
Priority to EA201590435A priority patent/EA039725B1/ru
Priority to PCT/IB2013/001841 priority patent/WO2014030055A1/fr
Publication of EP2700822A1 publication Critical patent/EP2700822A1/fr
Application granted granted Critical
Publication of EP2700822B1 publication Critical patent/EP2700822B1/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
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • 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
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • 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
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/301—Pressure

Definitions

  • the invention relates to a fan with a housing, which has an air inlet, an air outlet and a fan arranged between the air inlet and the air outlet, wherein in the region of the air inlet apertures opening into a flow channel for a pressure measurement are formed.
  • Fans of this type are well known in the art. They usually have a helical housing, in the center of the fan is arranged, wherein the air inlet points in the direction of the axis of rotation of the fan and wherein the air outlet extends in a direction perpendicular to the axis of rotation of the fan.
  • the rotation of the fan impeller draws ambient air between the fan blades and then releases it to the air outlet.
  • the air flow discharged through the air outlet can be regulated depending on the rotational speed of the fan.
  • one or more regions can be arranged in the air inlet, for example, in which an air volume is branched off to measure the pressure. Based on the obtained readings it can be determined if the rotational speed of the fan must be increased or decreased to ensure a uniform pressure within the air inlet.
  • conclusions about the functionality of filters arranged in the air inlet can also be drawn from the measured pressure values.
  • the document shows EP 2 357 365 A2 a fan with a helical housing in which the fan is centrally located, and which has the air inlet in the direction of the axis of rotation of the fan and the air outlet in a direction perpendicular thereto.
  • two areas are provided for branching off air volumes, wherein a first area is arranged as a separate tube in the region of the fan and wherein a second area thereof is arranged at a distance from the flow direction in the air inlet.
  • the hose which forms a ring-shaped placed around the fan pressure measuring range is introduced separately after the manufacture of the fan housing in this. In order for the air to penetrate into the hose, it has holes on its surface. When inserting the hose into the housing, make sure that the holes point exactly radially in the direction of the axis of rotation of the fan.
  • the invention proposes that the air inlet at least partially has two wall elements connected to one another at connection areas and forming a channel volume, at least one partial area of a connection area having openings.
  • the area which serves to branch off air volumes is thus formed by two wall elements which together form a channel volume and provide the required openings at their connection areas.
  • the together forming the channel volume wall elements may be partly made of one or more portions of the fan housing, which are located in the region of the fan, and on the other hand of one or more separate wall elements, which are placed on the corresponding region of the fan housing. Between the two wall elements, i. For example, the partial area of the fan housing and the separate wall element, then creates the channel volume, which leads the air volume required for the air pressure measurement.
  • the separate wall element can be placed on the portion of the fan housing so that a connection region between the separate wall element and the fan housing at least partially has openings through which the air can penetrate into the channel volume formed by the wall elements.
  • the invention further provides that the openings are slit-shaped. This ensures a particularly simple production. It is additionally advantageous that it is not necessary for a guidance of the air within the channel volume to introduce only very small holes in the wall, but that beyond slot-shaped openings are also suitable to introduce a sufficiently large proportion of air in the channel volume and the other to achieve a satisfactory guidance of the air within the channel volume.
  • the slot-shaped configuration is particularly advantageous in the sense of the invention, since the slot shape can be achieved particularly easily by spacing the adjacent wall elements within the connection areas. Thus eliminates the additional step of introducing openings in the material of the wall elements. Alternatively or additionally, of course, round or cylindrical openings can also be formed.
  • the openings have a dimension smaller than 2 mm in at least one direction. On the one hand, this quantity is sufficient to introduce a sufficiently large amount of air into the channel volume and, on the other hand, small enough to reduce the losses.
  • the invention has surprisingly shown that even long, slot-shaped openings which are smaller than 2 mm in one direction, the volume of air as lossless as possible in the channel volume.
  • the invention provides that webs are formed between the openings.
  • a plurality of such webs are arranged along a connecting region, which set a distance of less than 2 mm between the adjacent wall elements.
  • the webs can advantageously produce the connection between the adjacent wall elements.
  • the channel volume formed by the wall elements is substantially annular.
  • the region intended for branching off compressed air can be arranged as a continuous ring around the fan. But it can also be deviated from an ideal round shape, for example, to integrate a control board with pressure sensors.
  • channel volume forming wall elements made of plastic. This makes it possible to produce the wall elements, as well as the fan housing, by injection molding, which in turn allows a particularly simple and cost-effective production.
  • a seal is arranged on at least one connection area.
  • the seal may be glued, clamped or otherwise connected to the wall elements and / or the fan housing as known in the art.
  • the wall elements are adhesively bonded, welded and / or screwed to the connection regions.
  • the wall elements are adhesively bonded, welded and / or screwed to the connection regions.
  • the invention also proposes a method for producing a fan with a housing, wherein the housing has an air inlet, an air outlet and a fan arranged between the air inlet and the air outlet, openings opening in the region of the air inlet into a flow channel for pressure measurement are formed, wherein at least partially two wall elements of the air inlet at connection areas are connected to each other so that they enclose a channel volume, wherein at least a portion of a connection region after connection has openings.
  • the method according to the invention therefore proposes connecting the wall elements to one another via connecting regions in such a way that, on the one hand, they enclose a channel volume and, on the other hand, are connected to one another so that openings for the passage of the air remain.
  • the wall elements are connected to one another in a connection region via webs which serve as spacers and ensure a slot-shaped opening between the adjacent wall elements.
  • a fan 1 is shown with a housing 2, wherein the housing 2 includes an air inlet 3 and an air outlet 4.
  • a fan 5 is arranged, which conveys air flowing into the air inlet 3 via its fan blades in the air outlet 4.
  • an area 6 and a second pressure measuring area are arranged.
  • Fig. 2 shows a trained in the region 6 channel volume 8, which is enclosed by two adjacent wall elements 9.
  • the two wall elements 9 are connected to each other via connecting regions 7.
  • a web 11 is arranged which spaces the wall elements 9 from one another. In addition to the web 11 thereby creates an opening 10.
  • the two wall elements 9 are connected via a screw 12 to each other.
  • the fan 1 according to Fig. 1 works so that ambient air is conveyed into the air inlet 3 of the housing 2.
  • the air conveying takes over a arranged in the housing 2 fan 5.
  • the fan 5 then conveys the ambient air from the air inlet 3 in the air outlet 4.
  • wall elements 9 according to the invention are arranged in the area, which enclose a channel volume 8.
  • the air present in the air inlet 3 reaches the area 6 Fig. 2 two wall elements 9 arranged to each other so that they enclose the channel volume 8.
  • the two wall elements 9 are screwed together by means of a screw 12.
  • the wall element 9 shown in the figure below can be attached to a part of the housing 2 of the fan 1.
  • the housing 2 itself can form a wall element 9.
  • a web 11 is arranged, which forms the openings 10 next to it.
  • These openings 10 are slot-shaped and can extend along the entire connecting region 7 between the wall elements 9.
  • webs 11 may be provided at regular intervals over the length of the connecting region 7.
  • the size of the openings 10 is in the direction perpendicular to the cutting edge of the wall elements 9 less than 2 mm. In contrast to the cutting edge of the wall elements 9, the openings 10 may be formed as long as desired.
  • the second connection area 7 in Fig. 2 shown on the right is the upper wall element 9 positively placed against a projection of the lower wall element 9. It can additionally be provided that this connection region 7 has a seal which prevents the escape of air at this point.
  • Wall elements 9 shown can be formed annularly within the entire opening of the air inlet 3, for example, so that they surround the fan 5.
  • a connection between the wall elements 9 and the housing 2 of the fan 1 can be done via a screw, a plug connection or welding, gluing, etc.
  • plastic in particular offers itself as a material, since this can be easily molded by injection molding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Measuring Fluid Pressure (AREA)
EP12181662.3A 2012-08-24 2012-08-24 Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration Active EP2700822B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12181662.3A EP2700822B1 (fr) 2012-08-24 2012-08-24 Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration
PL12181662T PL2700822T3 (pl) 2012-08-24 2012-08-24 Obudowa przewietrznika promieniowego z kanałem do pomiaru ciśnienia zintegrowanym z wlotem przewietrznika
EA201590435A EA039725B1 (ru) 2012-08-24 2013-08-26 Корпус радиального проветривателя с интегрированным во впускной канал проветривателя каналом для измерения давления
PCT/IB2013/001841 WO2014030055A1 (fr) 2012-08-24 2013-08-26 Boîtier de ventilateur radial à canal de mesure de pression intégré dans l'entrée du ventilateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12181662.3A EP2700822B1 (fr) 2012-08-24 2012-08-24 Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration

Publications (2)

Publication Number Publication Date
EP2700822A1 true EP2700822A1 (fr) 2014-02-26
EP2700822B1 EP2700822B1 (fr) 2016-09-28

Family

ID=46967961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12181662.3A Active EP2700822B1 (fr) 2012-08-24 2012-08-24 Carter de ventilateur radial avec canal de mesure de pression intégré à la bouche d'aspiration

Country Status (4)

Country Link
EP (1) EP2700822B1 (fr)
EA (1) EA039725B1 (fr)
PL (1) PL2700822T3 (fr)
WO (1) WO2014030055A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3048430A1 (fr) * 2015-01-22 2016-07-27 Viessmann Werke GmbH & Co. KG Ventilateur avec un point de mesure de pression

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017120652A1 (de) 2017-09-07 2019-03-07 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator mit integrierter Volumenstromregelung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100189547A1 (en) * 2006-11-02 2010-07-29 Panasonic Corporation Centrifugal Fan
EP2357365A2 (fr) 2010-02-01 2011-08-17 Brink Climate Systems B.V. Système de mouvement d'air
US20110250051A1 (en) * 2010-04-09 2011-10-13 Trane International Inc. FC fan flow measurement system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629220B4 (de) * 1996-07-19 2005-05-12 Motoren Ventilatoren Landshut Gmbh Hochdruck-Gebläse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100189547A1 (en) * 2006-11-02 2010-07-29 Panasonic Corporation Centrifugal Fan
EP2357365A2 (fr) 2010-02-01 2011-08-17 Brink Climate Systems B.V. Système de mouvement d'air
US20110250051A1 (en) * 2010-04-09 2011-10-13 Trane International Inc. FC fan flow measurement system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3048430A1 (fr) * 2015-01-22 2016-07-27 Viessmann Werke GmbH & Co. KG Ventilateur avec un point de mesure de pression

Also Published As

Publication number Publication date
EA039725B1 (ru) 2022-03-04
EA201590435A1 (ru) 2015-08-31
EP2700822B1 (fr) 2016-09-28
PL2700822T3 (pl) 2017-06-30
WO2014030055A1 (fr) 2014-02-27

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