EP2895747A1 - Wandring eines lüfters mit heizelement - Google Patents
Wandring eines lüfters mit heizelementInfo
- Publication number
- EP2895747A1 EP2895747A1 EP13753614.0A EP13753614A EP2895747A1 EP 2895747 A1 EP2895747 A1 EP 2895747A1 EP 13753614 A EP13753614 A EP 13753614A EP 2895747 A1 EP2895747 A1 EP 2895747A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall ring
- heating element
- fan
- heating
- electrically conductive
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 88
- 239000004922 lacquer Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002086 nanomaterial Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
-
- 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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow 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
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- 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
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- 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
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
Definitions
- the invention is directed both to a wall ring for a fan, comprising at least one heating element for heating the wall ring and a fan, comprising a fan and a heated wall ring, wherein the wall ring surrounds the fan of the fan.
- Fans in particular axial fans, are used inter alia in applications with very low temperatures, for example for heat pumps or for evaporators in cold rooms.
- Such fans usually include a fan and a wall ring surrounding the fan. There is a risk of ice formation on the wall ring and thus a freezing of the blades of the fan wheel on the
- the wall ring consists of materials that are only slightly thermally conductive.
- a high proportion of the wall ring consists of materials that are only slightly thermally conductive.
- Resistance heaters typically use a mains voltage of 230V, which may be a safety issue.
- the invention is therefore an object of the invention to provide a wall ring for a fan available, which particularly energy-efficient and safe prevents icing of the wall ring and thus freezing of the fan.
- the heating element comprises an electrically conductive heating layer, which at the fan wheel facing inside of the
- Wall ring is arranged.
- the heating element By arranging the heating element on the inside of the wall ring between the inside of the wall ring and the ends of the fan blades of the fan wheel, the heating element is arranged where the ice predominantly forms. Since the heating element is arranged on the fan wheel facing surface of the wall ring, it prevents the direct heating of the heating element, the formation of ice in the portion of the wall ring, which is covered by the heating element. In addition, the heating element heats its environment through
- Heat conduction and heat radiation additionally act on the areas of the inner side of the wall ring which are not covered by the heating element and, in particular, quickly heat the surface of the inner side of the wall ring adjoining the heating element.
- the heat conduction and thermal radiation additionally act on the areas of the inner side of the wall ring which are not covered by the heating element and, in particular, quickly heat the surface of the inner side of the wall ring adjoining the heating element.
- the formation of ice on the inside of the wall ring in the relevant surface area is prevented, without the wall ring must be completely covered with the heating element.
- the air in a gap between the wall ring and fan blades and the ends of the fan blades are heated by the heat radiation of the heating element. This also prevents the formation of ice on the ends of the fan blades.
- the electrically conductive heating layer of the heating element is designed as an electrically conductive lacquer, in particular as a CNT lacquer with Kohlenstoffnanomaterialien.
- the heating element can be applied particularly simply by means of a painting process during the production of the wall ring, in particular also to complex surface structures.
- the heating element can be applied very thin, so that the air flow within the wall ring and the movement of the wings is not affected or negligible.
- the lacquer layer according to the invention allows a particularly uniform and flat heating of the wall ring.
- such a heating element is particularly energy efficient, so that a reduction of the required heat energy, in particular up to between 0.5 W and 12 W, is possible.
- the electrically conductive heating layer of the heating element as an electrically conductive adhesive tape, in particular with a layer with
- Carbon nanomaterials formed. This allows a simple and cost-effective installation of a heating element by manual or machine gluing, in particular also subsequently on an already mounted wall ring of a fan.
- the heating element covers only a portion extending in the circumferential direction of the inner side of the wall ring and / or extends only over a portion extending in the axial direction of the inside of the wall ring. This allows on the one hand to save material costs by only the critical for the protection against icing portions of the wall ring are covered by the heating element, and on the other hand, the energy requirements of certain sizes of the wall ring and / or operating parameters of the fan, for which the wall ring is determined to adjust.
- the heating element at its axially extending side edges contacting by means of contact elements, so that the direction of an electric current flowing through the heating element in the circumferential direction of the wall ring has.
- the heating element at its circumferentially extending side edges a contacting means
- a plurality of heating elements are arranged distributed on the inside of the wall ring facing the fan wheel and their contact elements connected in parallel or in series. This allows a particularly flexible and energy-optimized positioning of the heating elements for a specific use of the fan with the lowest possible cost of materials for the heating elements.
- Fig. 1 is a sketchy representation of a fan with a
- a wall ring 1 is shown for a fan.
- a fan 5 of the fan 6 In the assembled state of the wall ring 1 is located as shown within the wall ring 1, a fan 5 of the fan 6.
- the wall ring 1 has in particular a cylindrical basic shape and has a fan 5 facing the inside 2 on.
- a heating element 3 is arranged for heating the wall ring 1.
- the heating element 3 comprises an electrically conductive heating layer. In the illustrated embodiment, the heating element 3 does not cover the entire surface of the inner side 2, but only a portion of the
- the heating element 3 covers an in
- the entire area of the inner side 2 is covered in the circumferential direction and / or the axial direction.
- the electrically conductive heating layer of the heating element 3 is formed in a preferred embodiment as an electrically conductive paint.
- the varnish is manufactured in particular as CNT varnish and comprises carbon nanomaterials.
- the electrically conductive heating layer of the heating element 3 is designed as an electrically conductive adhesive tape. In this case, the tape includes
- the size and the positioning of the heating element 3 may be different depending on the application parameters, for cost reasons the
- Heating element 3 covers the smallest possible area and is designed as a thin layer as possible. The heating power must provide sufficient protection against icing. In the exemplary embodiment shown, the heating element 3 covers approximately one third of the circumference of the inner side 2 of the wall ring 1. It is the heating element 3 is positioned so that it is located where the icing would predominantly occur in the operating state of the fan 6.
- Heating elements 3 are arranged distributed on the inside 2 of the wall ring 1 and the contact elements 4, 4 a are connected in parallel or in series. Alternatively, the heating element 3 in the circumferential direction, except for an axially extending
- Insulation gap cover the entire circumference of the inner side 2 of the wall ring 1.
- the heating element 3 is designed for a low voltage between 3 V and 60 V, in particular for 12 V or 24 V.
- the heating element 3 By the wiring of the heating element 3 with an operating voltage current flows through the heating element 3, which is heated thereby, whereby ice formation in the region of the heating element 3 is avoided. In addition, heat is released from the heating element 3 by heat conduction and thermal radiation into the environment of the heating element 3, in particular to the surface of the inner side 2 of the wall ring 1.
- the heating element 3 is so on the inside 2 of the wall ring. 1 positioned so that the heating element 3 in the operating state of the fan 6 covers the region of the inner side 2, on which the icing would occur predominantly.
- Embodiments are not limited to all features in combination, but each individual feature can also be detached from all others
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Resistance Heating (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13753614T PL2895747T3 (pl) | 2012-09-11 | 2013-08-22 | Pierścień ścienny wentylatora z elementem grzejnym |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012108449.1A DE102012108449A1 (de) | 2012-09-11 | 2012-09-11 | Wandring eines Lüfters mit Heizelement |
PCT/EP2013/067475 WO2014040835A1 (de) | 2012-09-11 | 2013-08-22 | Wandring eines lüfters mit heizelement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2895747A1 true EP2895747A1 (de) | 2015-07-22 |
EP2895747B1 EP2895747B1 (de) | 2017-05-31 |
Family
ID=49080860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13753614.0A Active EP2895747B1 (de) | 2012-09-11 | 2013-08-22 | Wandring eines lüfters mit heizelement |
Country Status (8)
Country | Link |
---|---|
US (1) | US9816526B2 (de) |
EP (1) | EP2895747B1 (de) |
CN (1) | CN104619994B (de) |
DE (1) | DE102012108449A1 (de) |
ES (1) | ES2639095T3 (de) |
HU (1) | HUE035997T2 (de) |
PL (1) | PL2895747T3 (de) |
WO (1) | WO2014040835A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012109546A1 (de) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Wandring für einen Axialventilator" |
USD771228S1 (en) * | 2013-12-30 | 2016-11-08 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Fan |
DE102014013437A1 (de) | 2014-09-16 | 2016-03-17 | Stiebel Eltron Gmbh & Co. Kg | Wärmepumpe mit Kältemittelkreislauf |
US20160135434A1 (en) * | 2014-11-13 | 2016-05-19 | Miller Manufacturing Company | Egg incubator |
USD814008S1 (en) * | 2015-02-02 | 2018-03-27 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilator fan |
DE202015106594U1 (de) * | 2015-03-10 | 2016-01-12 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilatorgehäuse mit Heizbandkanal |
DE102015103501A1 (de) * | 2015-03-10 | 2016-09-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Mehrteiliges Gehäuse eines Ventilators |
CN105737475B (zh) * | 2016-03-18 | 2019-01-18 | 青岛海尔股份有限公司 | 一种冰箱及其控制方法 |
AU201711884S (en) * | 2016-10-06 | 2017-04-20 | Residential Air Con Holding Aps | Fans |
US10437795B2 (en) | 2017-05-12 | 2019-10-08 | Sap Se | Upgrading systems with changing constraints |
US10422590B2 (en) | 2017-09-26 | 2019-09-24 | National Technology & Engineering Solutions Of Sandia, Llc | Air bearing heat exchanger |
USD905223S1 (en) * | 2018-10-12 | 2020-12-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Axial fan for transportation |
DE102018128823A1 (de) * | 2018-11-16 | 2020-05-20 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Diagonalventilator mit Heizelement |
DE202020101263U1 (de) * | 2020-03-06 | 2020-03-18 | Konvekta Aktiengesellschaft | Verbesserte Anlage zur Luftbehandlung und Lüftereinheit dazu |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1991280A (en) | 1930-12-01 | 1935-02-12 | Lee P Hynes | Electric heater |
US2133188A (en) * | 1937-08-18 | 1938-10-11 | Sante Di Antoni | Combination lamp, heater, and fan |
US3211891A (en) * | 1963-07-05 | 1965-10-12 | Mach & Electric | Thermal fan |
US3465124A (en) | 1966-05-20 | 1969-09-02 | Burger Eisenwerke Ag | Electrically heated thawing oven |
US3525851A (en) * | 1967-12-28 | 1970-08-25 | Rfl Ind Inc | Electric-cyclonic hot air furnace |
IL46779A (en) * | 1975-03-09 | 1977-08-31 | Glucksman D | Electric air-heating element |
JPS5553100Y2 (de) * | 1975-11-07 | 1980-12-09 | ||
US4146776A (en) * | 1976-11-08 | 1979-03-27 | Aubrey Manufacturing, Inc. | Ceiling mounted forced circulation electric air heater |
GB8608600D0 (en) | 1986-04-09 | 1986-05-14 | Taiwan Electric Heating Equipm | Fan heater |
US6725645B1 (en) * | 2002-10-03 | 2004-04-27 | General Electric Company | Turbofan engine internal anti-ice device |
US7168917B2 (en) * | 2003-12-03 | 2007-01-30 | American Standard International Inc. | Heat-generating blower housing |
US7819563B2 (en) | 2005-03-16 | 2010-10-26 | Eric Neal Hardgrave | Fan Chandelier |
DE202005012394U1 (de) | 2005-08-06 | 2005-12-08 | Microhellix Systems Gmbh | Elektrisches Heizmodul zur Luftstromerwärmung, insbesondere in Fahrzeugen |
DE102008048327A1 (de) * | 2008-09-15 | 2010-04-15 | Beiersdorf Ag | Wärmepflaster |
DE102008050895A1 (de) * | 2008-09-25 | 2010-04-01 | E.G.O. Elektro-Gerätebau GmbH | Pumpe für Fluide |
US9004407B2 (en) * | 2008-12-24 | 2015-04-14 | Middle River Aircraft Systems | Anti-icing system and method for preventing ice accumulation |
DE102009002469A1 (de) * | 2009-04-17 | 2010-10-21 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit beschlagfreiem Sichtfenster |
CN101991364B (zh) * | 2009-08-14 | 2013-08-28 | 清华大学 | 电烤箱 |
DE102009049628A1 (de) * | 2009-10-16 | 2010-05-20 | Daimler Ag | Lüfter |
US9261100B2 (en) * | 2010-08-13 | 2016-02-16 | Sandia Corporation | Axial flow heat exchanger devices and methods for heat transfer using axial flow devices |
CN202370869U (zh) * | 2011-10-12 | 2012-08-08 | 张天文 | 一种洁净空气冷热扇 |
US9193466B2 (en) * | 2012-07-13 | 2015-11-24 | Mra Systems, Inc. | Aircraft ice protection system and method |
-
2012
- 2012-09-11 DE DE102012108449.1A patent/DE102012108449A1/de active Pending
-
2013
- 2013-08-22 PL PL13753614T patent/PL2895747T3/pl unknown
- 2013-08-22 ES ES13753614.0T patent/ES2639095T3/es active Active
- 2013-08-22 WO PCT/EP2013/067475 patent/WO2014040835A1/de active Application Filing
- 2013-08-22 US US14/427,071 patent/US9816526B2/en active Active
- 2013-08-22 HU HUE13753614A patent/HUE035997T2/hu unknown
- 2013-08-22 EP EP13753614.0A patent/EP2895747B1/de active Active
- 2013-08-22 CN CN201380046831.6A patent/CN104619994B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014040835A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2639095T3 (es) | 2017-10-25 |
DE102012108449A1 (de) | 2014-03-13 |
EP2895747B1 (de) | 2017-05-31 |
CN104619994A (zh) | 2015-05-13 |
CN104619994B (zh) | 2018-01-09 |
US9816526B2 (en) | 2017-11-14 |
PL2895747T3 (pl) | 2017-10-31 |
WO2014040835A1 (de) | 2014-03-20 |
HUE035997T2 (hu) | 2018-06-28 |
US20150219117A1 (en) | 2015-08-06 |
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