EP2455619B1 - Dispositif silencieux pour ventilateurs d'échange d'air - Google Patents

Dispositif silencieux pour ventilateurs d'échange d'air Download PDF

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Publication number
EP2455619B1
EP2455619B1 EP11186061.5A EP11186061A EP2455619B1 EP 2455619 B1 EP2455619 B1 EP 2455619B1 EP 11186061 A EP11186061 A EP 11186061A EP 2455619 B1 EP2455619 B1 EP 2455619B1
Authority
EP
European Patent Office
Prior art keywords
air
silencer device
silencer
exchanger
air exchanger
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
EP11186061.5A
Other languages
German (de)
English (en)
Other versions
EP2455619A1 (fr
Inventor
Umberto Merlo
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.)
LU-VE SpA
Original Assignee
LU-VE SpA
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Filing date
Publication date
Application filed by LU-VE SpA filed Critical LU-VE SpA
Priority to PL11186061T priority Critical patent/PL2455619T3/pl
Publication of EP2455619A1 publication Critical patent/EP2455619A1/fr
Application granted granted Critical
Publication of EP2455619B1 publication Critical patent/EP2455619B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Definitions

  • the present invention relates to a silencer device in particular for fans used in air exchangers and the like.
  • a silencer device according to the preamble of claim 1 is disclosed in US 2009/0269219 A1 .
  • an air-exchanger is an apparatus including either one or more heat exchanging assemblies, to each of which an electric fan is coupled.
  • the above apparatus is used, for example, in air refrigerating and conditioning systems.
  • a very important problem to be solved in such an apparatus is that of reducing as far as possible the noise caused by fan generated air turbulences.
  • a turbulent air flow at the outlet of the fan is a very noisy one while interfering against adjoining fan flows, thereby further increasing the overall apparatus noise.
  • the aim of the present invention is to provide a silencer device, in particular for air-exchanger fans and the like, which is adapted to greatly reduce the operation noise of the air-exchanger fans.
  • a main object of the invention is to provide such a silencer device, which is designed for preventing air turbulences from forming through said air-exchangers, in particular of a type including multiple air conveying fans.
  • Another object of the present invention is to provide such a silencer device which may be easily applied to air outlet ducts of conventional air-exchangers.
  • Yet another object of the present invention is to provide such a silencer device which, owing to its specifically designed operational construction, is very reliable and safe in operation.
  • a silencer device particularly for air-exchanger fans and the like, characterized in that said silencer device comprises a cylindric tubular casing with an inner side cylindric wall to which a sound damping or absorbing material is applied, at the top thereof said device further comprising a top grid and at a bottom thereof bottom coupling means for connecting said device to a fan outlet.
  • Said device has been specifically designed for application to an electrofan air conveyor of an air-exchanger for air refrigerating and conditioning systems.
  • the silencer device according to the present invention which has been generally indicated by the reference number 1, has been specifically designed for application to a conveyer 2 of an electrofan of an air-exchanger 3 used in air refrigerating and conditioning systems.
  • the silencer device 1 comprises a metal cylindric tubular casing 5, having an inner metal perforated metal net 6, providing a gap encompassing the inside of the silencer.
  • a sound damping or absorbing material is arranged between the inner metal net 6 and outer wall , said sound absorbing material comprising a rock wool material or other sound absorbing material operating to absorb noises generated at the air outlet, in particular at the air exchanger conveyor assemblies 2.
  • the silencer device comprises moreover a top grid 7 designed for reducing noise and preventing articles from falling and also adapted to operate as an accident preventing element for protecting the operator hands from being injured if said hand would be accidentally introduced into the air outlet mouth portions of the air-exchanger fan blades.
  • said top grid 7 is adapted and designed to split the air flow exiting the air exchanger to suppress any noise generating turbulences.
  • the silencer device according to the present invention further comprises a plurality of recesses 8 allowing the silencer device to be applied and centered on the conveyor elements 2.
  • the inventive silencer device 1 has been specifically designed for application to air-exchangers of air refrigerating and conditioning systems, for preventing air turbulences from being generated at the outlets of the air-exchanger including a plurality of air conveying fans.
  • the sound absorbing material arranged in the gap formed between the metal inner net 6 and outer wall greatly reduces the fan noise, whereas the top grid 7 in turn greatly reduces or nullify the turbulent motion of the outlet air, thereby preventing the fan outlet flows from interfering against one another and hot air from being recirculated, as it would occur in an apparatus not including the inventive silencer device.
  • the used materials, as well as the contingent size and shapes can be any, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Duct Arrangements (AREA)
  • Compressor (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

  1. Dispositif de silencieux (1) destiné à être appliqué sur un élément transporteur (2) d'un échangeur d'air (3) d'un système de conditionnement et de refroidissement d'air, le dispositif de silencieux comprenant un boîtier tubulaire cylindrique métallique (5) avec une paroi cylindrique latérale intérieure sur laquelle un matériau insonorisant ou isophonique est appliqué, le dispositif comprenant en outre sur le dessus une grille supérieure divisant le flux d'air (7) et sur un fond, un moyen de couplage de fond pour relier le dispositif à une sortie d'un ventilateur de l'échangeur d'air, caractérisé en ce que le moyen de couplage comprend une pluralité d'évidements (8) écartées sur la circonférence formés sur une partie inférieure du boîtier.
  2. Dispositif de silencieux, selon la revendication 1, caractérisé en ce que le dispositif comprend un filet métallique perforé (6) fournissant un espace qui englobe l'intérieur du silencieux, le matériau insonorisant ou isophonique étant agencé entre le filet métallique intérieur et la paroi extérieure.
  3. Dispositif de silencieux, selon la revendication 1, caractérisé en ce que le insonorisant comprend un matériau de laine de roche ou de tapis aiguilleté isophonique.
  4. Dispositif de silencieux, selon la revendication 1, caractérisé en ce que la grille supérieure est adaptée pour éviter que des articles ne tombent et pour fonctionner en tant qu'élément évitant les accidents.
EP11186061.5A 2010-11-19 2011-10-21 Dispositif silencieux pour ventilateurs d'échange d'air Active EP2455619B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11186061T PL2455619T3 (pl) 2010-11-19 2011-10-21 Urządzenie wygłuszające do wentylatorów wymiennika powietrza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A002143A IT1403249B1 (it) 2010-11-19 2010-11-19 Dispositivo silenziatore, particolarmente per i ventilatori di aero-scambiatori e simili.

Publications (2)

Publication Number Publication Date
EP2455619A1 EP2455619A1 (fr) 2012-05-23
EP2455619B1 true EP2455619B1 (fr) 2015-05-27

Family

ID=43742756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11186061.5A Active EP2455619B1 (fr) 2010-11-19 2011-10-21 Dispositif silencieux pour ventilateurs d'échange d'air

Country Status (5)

Country Link
EP (1) EP2455619B1 (fr)
ES (1) ES2544889T3 (fr)
HU (1) HUE026934T2 (fr)
IT (1) IT1403249B1 (fr)
PL (1) PL2455619T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966263A (zh) * 2019-11-26 2020-04-07 重庆美的通用制冷设备有限公司 消声装置、消声装置组件、轴流风机及空调器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2394332B1 (es) * 2012-08-02 2013-09-12 Soler & Palau Res Sl Caja de ventilacion

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL262265A (fr) * 1960-03-11 1900-01-01
JPS5153606A (en) * 1974-11-05 1976-05-12 Sasakura Eng Co Ltd Puroperafuanno soonboshofuanringu
JP3437894B2 (ja) * 1996-07-01 2003-08-18 株式会社共立 ブロワパイプへの消音装置の取付方法
US6503060B1 (en) * 1999-08-09 2003-01-07 Daikin Industries, Ltd. Fan guard of blower unit and air conditioner
US6089348A (en) * 1999-09-22 2000-07-18 Bokor Manufacturing Inc. Blower noise silencer
ITNA20010011A1 (it) * 2001-02-13 2002-08-13 Klevers Italiana S R L Materiale fonoisolante e termoisolante caratterizzato dal volumizzaread una certa temperatura particolarmente adatto per essere utilizzato
GB0505280D0 (en) * 2005-03-16 2005-04-20 Chung Mei Ind Ltd Low noise fan heater
US20090269219A1 (en) * 2005-07-29 2009-10-29 Bsh Bosch Und Siemens Hausgerate Gmbh Domestic appliance with a sound damper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110966263A (zh) * 2019-11-26 2020-04-07 重庆美的通用制冷设备有限公司 消声装置、消声装置组件、轴流风机及空调器

Also Published As

Publication number Publication date
ES2544889T3 (es) 2015-09-04
EP2455619A1 (fr) 2012-05-23
ITMI20102143A1 (it) 2012-05-20
HUE026934T2 (en) 2016-07-28
IT1403249B1 (it) 2013-10-17
PL2455619T3 (pl) 2015-10-30

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