ES2710365T3 - Ventilation box - Google Patents

Ventilation box Download PDF

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Publication number
ES2710365T3
ES2710365T3 ES13178067T ES13178067T ES2710365T3 ES 2710365 T3 ES2710365 T3 ES 2710365T3 ES 13178067 T ES13178067 T ES 13178067T ES 13178067 T ES13178067 T ES 13178067T ES 2710365 T3 ES2710365 T3 ES 2710365T3
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Spain
Prior art keywords
air
box
air inlet
mouth
ventilation
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Active
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ES13178067T
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Spanish (es)
Inventor
Costa Roger Madorell
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Soler and Palau Research SL
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Soler and Palau Research SL
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Classifications

    • 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
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • 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

Landscapes

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

Abstract

Un sistema de ventilación que comprende conductos de aire y una caja de ventilación formada por un cuerpocaja (1) presentando una embocadura (3) de entrada de aire y una embocadura (4) de salida de aire, acoplados a dichos conductos de aire, en los respectivos extremos del cuerpo-caja (1), estando dispuesta una hélice (2) de impulsión del aire en la embocadura (3) de entrada de aire, estando situada en el interior del cuerpo-caja (1), en donde la embocadura (3) de entrada de aire está desplazada respecto del cuerpo-caja (1) hacia el exterior, yendo incluido entre la embocadura (3) de entrada de aire y la hélice (2) de impulsión del aire un silenciador (5) tubular , pero no un cono de divergencia de aire, y dichas embocadura (3) de entrada de aire y embocadura (4) de salida del aire están ambas acopladas a un conducto de aire, y caracterizado por que el silenciador (5) determina un conducto de paso del aire de menor diámetro que la embocadura (3) de entrada de aire, entre dicha embocadura (3) de entrada de aire y dicha hélice (2) de impulsión del aire.A ventilation system comprising air ducts and a ventilation box formed by a box body (1) presenting an air inlet mouth (3) and an air outlet mouth (4), coupled to said air ducts, in the respective ends of the body-box (1), an air drive propeller (2) being arranged in the air inlet mouth (3), being located inside the body-box (1), where the mouth (3) air inlet is displaced with respect to the body-box (1) towards the outside, being included between the air inlet mouth (3) and the air supply propeller (2) a tubular silencer (5), but not an air divergence cone, and said air inlet mouth (3) and air outlet mouth (4) are both coupled to an air duct, and characterized in that the silencer (5) determines a duct of air passage with a smaller diameter than the air inlet mouth (3), between said mouth air inlet ra (3) and said air drive propeller (2).

Description

DESCRIPCIONDESCRIPTION

Caja de ventilacionVentilation box

Sector de la tecnicaSector of the technique

La presente invencion esta relacionada con los medios de impulsion del aire en instalaciones de ventilacion, proponiendo una caja de ventilacion destinada para incorporarse en instalaciones de ventilacion industriales, con unas caractensticas estructurales que determinan una ventajosa realizacion para el funcionamiento insonoro de dicha caja.The present invention is related to the means of driving the air in ventilation installations, proposing a ventilation box intended to be incorporated in industrial ventilation installations, with structural features that determine an advantageous embodiment for the soundproof operation of said box.

Estado de la tecnicaState of the art

En las instalaciones de ventilacion, tanto a nivel domestico como industrial, es importante evitar que el ruido que producen en su funcionamiento los ventiladores de impulsion del aire se propague por las estructuras que soportan la instalacion, lo cual se resuelve convencionalmente disponiendo los ventiladores con soluciones de insonorizacion. Son conocidos, para la impulsion del aire en las instalaciones de ventilacion, ventiladores tubulares axiales que se intercalan en las conducciones de circulacion del aire, con el cuerpo de estos ventiladores formado por una carcasa cilmdrica en la que se aloja un elemento impulsor del aire y los elementos de accionamiento para el funcionamiento del mismo, acoplandose dicha carcasa por sus extremos a una conduccion de circulacion del aire.In the ventilation installations, both domestically and industrially, it is important to avoid that the noise produced in its operation by the fans of air impulsion is propagated by the structures that support the installation, which is solved conventionally by arranging the fans with solutions of soundproofing. They are known, for the impulsion of the air in the ventilation installations, axial tubular fans that are interposed in the air circulation conduits, with the body of these fans formed by a cylindrical casing in which an air impeller element is housed and the actuating elements for the operation of the same, said casing being coupled at its ends to a conduction of air circulation.

La disposicion del montaje de estos ventiladores en disposicion intercalada en las conducciones de aire, favorece la transmision del ruido del funcionamiento por dichas conducciones de circulacion del aire, disponiendose convencionalmente, para evitar esa transmision del ruido de funcionamiento del ventilador, unos silenciadores que se incorporan sobre los tramos de la conduccion de aire a los que se acopla el ventilador, o intercalados entre dichos tramos de la conduccion de aire y el ventilador, por delante y por detras del mismo, como en la solicitud de Patente Americana US 2008/0000617 A1, lo cual determina una considerable prolongacion longitudinal del ventilador, que limita las posibilidades de montaje de la instalacion de aplicacion, siendo ademas dicha prolongacion funcion del diametro de la conduccion de aire en la que se dispone el ventilador, ya que a mayor diametro de la conduccion de aire se requiere una mayor longitud de los silenciadores necesarios.The arrangement of the assembly of these fans in interposed arrangement in the air conduits, favors the transmission of the noise of operation by said air circulation conduits, conventionally arranged, to avoid that transmission of the operating noise of the fan, a few silencers that are incorporated on the sections of the air conduction to which the fan is coupled, or interposed between said sections of the air conduction and the fan, in front of and behind it, as in the American patent application US 2008/0000617 A1 , which determines a considerable longitudinal extension of the fan, which limits the installation possibilities of the application installation, and this extension is also a function of the diameter of the air conduction in which the fan is arranged, since the greater the diameter of the Air conduction requires a longer length of the necessary silencers.

Para ventiladores helicocentnfugos que se intercalan en las conducciones de aire, se ha desarrollado una solucion al respecto, segun la solicitud de Patente Espanola P 201100220 y la solicitud de Patente Europea EP 2492515, de la misma titular que la presente invencion, mediante una estructuracion del ventilador con un paso de aire formado por un cono de convergencia y un cono de divergencia, por delante de una helice de impulsion del aire, incorporandose sobre ese paso de aire, entre el cono de convergencia y el cono de divergencia un silenciador que determina un conducto intermedio entre ambos conos, siendo necesario con esta solucion un silenciador de poca longitud para conseguir una insonorizacion efectiva.For helicocentrifugal fans that are interposed in the air ducts, a solution has been developed in this regard, according to the application of Spanish Patent P 201100220 and the European Patent Application EP 2492515, of the same owner as the present invention, by means of a structuring of the fan with an air passage formed by a cone of convergence and a cone of divergence, in front of a propeller of air impulsion, incorporating on that air passage, between the cone of convergence and the divergence cone a silencer that determines a intermediate conduit between both cones, being necessary with this solution a silencer of short length to achieve an effective soundproofing.

Las cajas de ventilacion que se utilizan en las instalaciones de ventilacion industriales, tienen sin embargo una formacion estructural que comprende un cuerpo-caja provisto con una embocadura de entrada directa del aire por un extremo y una embocadura de salida del aire en el otro extremo, incluyendo en el interior una helice de impulsion del aire enfrentada a la embocadura de entrada de aire; siendo en estas cajas de ventilacion particularmente interesante la adaptacion de soluciones que permitan conseguir una insonorizacion efectiva con silenciadores de poco tamano, dado el gran diametro de las conducciones de aire a las que normalmente se acoplan dichas cajas en su aplicacion y que, con las soluciones convencionales de colocacion de silenciadores sobre las conducciones de aire, requieren silenciadores de tamanos excesivos.The ventilation boxes that are used in industrial ventilation installations, however, have a structural formation comprising a body-box provided with a mouthpiece for direct entry of air at one end and an air outlet at the other end, including in the interior a propeller of air impulsion facing the air inlet embouchure; being in these ventilation boxes particularly interesting the adaptation of solutions that allow to achieve an effective soundproofing with silencers of small size, given the large diameter of the air ducts to which these boxes are normally coupled in their application and which, with the solutions Conventional placement of mufflers on air ducts requires excessive size mufflers.

Objeto de la invencionObject of the invention

De acuerdo con la invencion se propone un sistema de ventilacion con conductos de aire y una caja de ventilacion realizada con una formacion estructural que permite conseguir un efecto de insonorizacion muy efectivo con un silenciador de poco tamano independientemente del diametro de las conducciones de aire a las que se acopla la caja.According to the invention, a ventilation system with air ducts and a ventilation box made with a structural formation is proposed which allows to achieve a very effective soundproofing effect with a silencer of small size regardless of the diameter of the air ducts to the that the box is attached.

Esta caja de ventilacion en el sistema de ventilacion objeto de la invencion comprende un conjunto estructural formado por un cuerpo-caja presentando una embocadura de entrada de aire y una embocadura de salida de aire, acoplados a dichos conductos de aire, en los respectivos extremos del cuerpo-caja, estando dispuesta una helice de impulsion del aire en la embocadura de entrada de aire, estando situada en el interior del cuerpo-caja, en donde la embocadura de entrada de aire esta desplazada respecto del cuerpo-caja hacia el exterior, yendo incluido entre la embocadura de entrada de aire y la helice de impulsion del aire un silenciador tubular que determina un conducto de paso del aire de menor diametro que la embocadura de entrada de aire, entre dicha embocadura de entrada de aire y dicha helice de impulsion del aire, pero no un cono de divergencia de aire como en la solicitud de Patente Europea EP 2492515. This ventilation box in the ventilation system object of the invention comprises a structural assembly formed by a body-box having an air inlet mouth and an air outlet mouth, coupled to said air ducts, at the respective ends of the body. body-box, a propeller being arranged to drive the air into the air inlet, being located inside the body-box, where the air inlet is displaced from the body-box to the outside, going included between the air inlet mouthpiece and the air impulsion propeller a tubular silencer which determines an air passage passage of smaller diameter than the air inlet mouthpiece, between said air inlet mouth and said air intake propeller air, but not a cone of divergence of air as in the European Patent Application EP 2492515.

Se obtiene asf una caja de ventilacion que resulta adecuadamente insonorizada con muy poco incremento de dimension longitudinal, ya que el silenciador que va dispuesto entre la boca de entrada de aire y la helice de impulsion del aire, es de un diametro menor que las conducciones de aire externas a las que se acopla la caja de ventilacion, requiriendo por lo tanto un silenciador de poca longitud en comparacion con los silenciadores que se disponen entre las embocaduras de la caja de ventilacion y las conducciones de aire externas, en las soluciones convencionales.Thus, a ventilation box is obtained which is suitably soundproofed with very little increase in longitudinal dimension, since the muffler that is arranged between the air inlet mouth and the air impulse propeller is smaller in diameter than the air ducts. external air to which the ventilation box is coupled, thus requiring a short length silencer in comparison with the silencers that are arranged between the mouths of the ventilation box and the external air ducts, in conventional solutions.

Con esta solucion de la invencion, la caja de ventilacion ofrece unas condiciones ventajosas para el montaje en las instalaciones de aplicacion, ya que la insonorizacion incrementa poco la dimension longitudinal, permitiendo un montaje mas versatil de la caja de ventilacion en las instalaciones de aplicacion.With this solution of the invention, the ventilation box offers advantageous conditions for mounting in the application installations, since the soundproofing slightly increases the longitudinal dimension, allowing a more versatile assembly of the ventilation box in the application installations.

Por lo tanto, dicha caja de ventilacion objeto de la invencion resulta con unas caractensticas funcionales muy ventajosas, adquiriendo vida propia y caracter preferente respecto de las cajas de ventilacion convencionales de la misma aplicacion.Therefore, said ventilation box object of the invention results with very advantageous functional characteristics, acquiring its own life and preferred character with respect to the conventional ventilation boxes of the same application.

Descripcion de las figurasDescription of the figures

La figura 1 muestra una perspectiva explosionada de una caja de ventilacion realizada segun la invencion.Figure 1 shows an exploded perspective of a ventilation box made according to the invention.

La figura 2 es una vista en seccion longitudinal esquematica de una caja de ventilacion segun la invencion, estando indicada con unas lmeas la circulacion de aire a traves de la misma.Figure 2 is a schematic longitudinal sectional view of a ventilation box according to the invention, the air circulation through it being indicated with lines.

Descripcion detallada de la invencionDetailed description of the invention

El objeto de la invencion se refiere a un sistema de ventilacion con conductos de aire y una caja de ventilacion, de las que se utilizan en instalaciones industriales de ventilacion, la caja de ventilacion comprendiendo un cuerpo-caja (1), dentro del cual se aloja una helice (2) de impulsion del aire dispuesta en relacion con una embocadura (3) de entrada de aire que el mencionado cuerpo-caja (1) posee en un extremo, mientras que en el otro extremo se halla definida una embocadura (4) de salida del aire, determinando ambas embocaduras (3 y 4) sendos acoplamientos para la union a respectivas conducciones de aire exteriores.The object of the invention relates to a ventilation system with air ducts and a ventilation box, of which are used in industrial ventilation installations, the ventilation box comprising a body-box (1), within which it houses a propeller (2) of air impulsion disposed in relation to an air inlet (3) that said body-box (1) has at one end, while at the other end is defined a mouthpiece (4) ) of air outlet, determining both mouths (3 and 4) separate couplings for the union to respective external air pipes.

Segun la invencion, la embocadura (3) de entrada de aire queda desplazada respecto del cuerpo-caja (1) hacia el exterior, yendo incluido entre ella y la helice (2) de impulsion del aire un silenciador (5) tubular que determina, entre la mencionada embocadura (3) de entrada de aire y dicha helice (2) de impulsion del aire, un conducto de paso del aire de menor diametro que la embocadura (3) de entrada de aire.According to the invention, the air inlet (3) is displaced relative to the body-box (1) towards the outside, a tubular silencer (5) which determines, being included between it and the propeller (2) of air impulsion being included, between said air inlet mouth (3) and said air impulse propeller (2), an air passage duct of smaller diameter than the air inlet mouth (3).

De este modo, el silenciador (5) se incluye integrado en la propia caja de ventilacion, en una zona de menor diametro que los acoplamientos a las conducciones de aire externas de aplicacion, por lo que dicho silenciador (5) requiere una longitud menor que los silenciadores convencionales que se disponen en las mencionadas conducciones de aire externas de acoplamiento de las cajas de ventilacion en las instalaciones de aplicacion, por lo que, con esta solucion de la invencion, el conjunto de la caja de ventilacion y la disposicion de insonorizacion del funcionamiento de la misma, supone solo un incremento mmimo de la longitud de la caja de ventilacion, permitiendo unas mejores condiciones y una mayor versatilidad para el montaje en las instalaciones de aplicacion. In this way, the silencer (5) is included integrated in the ventilation box itself, in an area of smaller diameter than the couplings to the external air conduits of application, so that said silencer (5) requires a shorter length than conventional silencers that are arranged in the aforementioned external air ducts coupling the ventilation boxes in the application facilities, so, with this solution of the invention, the whole of the ventilation box and the soundproofing arrangement of the operation of the same, supposes only a minimum increase of the length of the box of ventilation, allowing some better conditions and a greater versatilidad for the setting in the installations of application.

Claims (1)

REIVINDICACIONES 1.- Un sistema de ventilacion que comprende conductos de aire y una caja de ventilacion formada por un cuerpocaja (1) presentando una embocadura (3) de entrada de aire y una embocadura (4) de salida de aire, acoplados a dichos conductos de aire, en los respectivos extremos del cuerpo-caja (1), estando dispuesta una helice (2) de impulsion del aire en la embocadura (3) de entrada de aire, estando situada en el interior del cuerpo-caja (1), en donde la embocadura (3) de entrada de aire esta desplazada respecto del cuerpo-caja (1) hacia el exterior, yendo incluido entre la embocadura (3) de entrada de aire y la helice (2) de impulsion del aire un silenciador (5) tubular , pero no un cono de divergencia de aire, y dichas embocadura (3) de entrada de aire y embocadura (4) de salida del aire estan ambas acopladas a un conducto de aire, y caracterizado por que el silenciador (5) determina un conducto de paso del aire de menor diametro que la embocadura (3) de entrada de aire, entre dicha embocadura (3) de entrada de aire y dicha helice (2) de impulsion del aire. 1. A ventilation system comprising air ducts and a ventilation box formed by a body box (1) having an air inlet (3) and an air outlet (4), coupled to said air ducts. air, in the respective ends of the body-box (1), being arranged a propeller (2) of impulsion of the air in the air inlet (3), being located inside the body-box (1), in where the air inlet (3) is displaced from the body-box (1) to the outside, including a muffler (5) between the air inlet (3) and the propeller (2) of the air impulse (5). ) tubular, but not a cone of air divergence, and said air inlet mouth (3) and air outlet mouth (4) are both coupled to an air duct, and characterized in that the muffler (5) determines a duct for passing air of a smaller diameter than the air inlet (3), between said duct air intake (3) and said helix (2) of air impulsion.
ES13178067T 2012-08-02 2013-07-25 Ventilation box Active ES2710365T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201231260A ES2394332B1 (en) 2012-08-02 2012-08-02 VENTILATION BOX

Publications (1)

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ES2710365T3 true ES2710365T3 (en) 2019-04-24

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ES201231260A Expired - Fee Related ES2394332B1 (en) 2012-08-02 2012-08-02 VENTILATION BOX
ES13178067T Active ES2710365T3 (en) 2012-08-02 2013-07-25 Ventilation box

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ES201231260A Expired - Fee Related ES2394332B1 (en) 2012-08-02 2012-08-02 VENTILATION BOX

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US (1) US20140038509A1 (en)
EP (1) EP2693135B1 (en)
ES (2) ES2394332B1 (en)

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EP2693135A1 (en) 2014-02-05
US20140038509A1 (en) 2014-02-06
ES2394332A1 (en) 2013-01-30
ES2394332B1 (en) 2013-09-12
EP2693135B1 (en) 2018-11-07

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