WO2004098789A2 - Device for generating a water fog - Google Patents

Device for generating a water fog Download PDF

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Publication number
WO2004098789A2
WO2004098789A2 PCT/FR2004/001049 FR2004001049W WO2004098789A2 WO 2004098789 A2 WO2004098789 A2 WO 2004098789A2 FR 2004001049 W FR2004001049 W FR 2004001049W WO 2004098789 A2 WO2004098789 A2 WO 2004098789A2
Authority
WO
WIPO (PCT)
Prior art keywords
water
screen
revolution
orifices
jets
Prior art date
Application number
PCT/FR2004/001049
Other languages
French (fr)
Other versions
WO2004098789A3 (en
Inventor
Pierre Lecanu
Joëlle LEBRETON
Original Assignee
Pierre Lecanu
Lebreton Joelle
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 Pierre Lecanu, Lebreton Joelle filed Critical Pierre Lecanu
Publication of WO2004098789A2 publication Critical patent/WO2004098789A2/en
Publication of WO2004098789A3 publication Critical patent/WO2004098789A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/16—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using rotating elements

Definitions

  • the present invention relates to a device for generating a water mist.
  • the object of the present invention is to propose a device generating a water mist capable of filling this gap.
  • such a device comprises on the one hand a rotary revolution box delimiting at its internal part a centrifuge chamber supplied with water and equipped on its peripheral wall with orifices allowing the ejection of jets of water to the outside, and on the other hand a screen surrounding the revolution box in line with the ejection orifices, so that the water jets leaving the centrifuge chamber are projected against this screen to generate fine droplets.
  • the revolution box is generally constituted by an essentially cylindrical element with a substantially vertical median axis dimensioned in each particular case according to needs, in particular the volume of the room to be treated and the humidity level to be maintained .
  • the revolution box supplied with water is rotated on itself at high speed by at least one electric or hydraulic control motor.
  • the water supplied to the internal part of the latter is expelled in jets towards the outside at an angle which depends on the geometry of the ejection orifices and the speed of rotation of the housing.
  • the screen consists of a cylinder perforated with calibrated orifices in line with the ejection orifices of the revolution box.
  • the water jets leaving the centrifuge chamber are sheared at the calibrated orifices thus allowing the generation of very fine droplets.
  • the screen is constituted by a set of grids surrounding the revolution box in line with the ejection orifices.
  • the water jets leaving the centrifuge chamber strike the grids and break against the wires thereof so as to cause them to burst into fine droplets.
  • the grids constituting the screen in accordance with this second variant can of course have any configuration without departing from the scope of the invention, and in particular be constituted by the assembly of tube wires or of profiles of diameter and d '' variable spacing.
  • the device generating a water mist also includes a fan.
  • the air moved by this fan makes it possible to move the droplets of water generated and to project them towards specific areas.
  • the fan can be rotated on itself at high speed by at least one electric or hydraulic control motor, in particular in conjunction with the revolution box.
  • control motor is constituted by an action or reaction water turbine such as a Pelton type water turbine or a Francis type water turbine.
  • an action or reaction water turbine such as a Pelton type water turbine or a Francis type water turbine.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Special Spraying Apparatus (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention relates to a device for generating a water fog. Said device comprises a rotatable housing, the inner part of said housing defining a centrifugal chamber supplied with water and fitted with openings on the peripheral wall thereof, for outwardly ejecting water jets, and a screen which surrounds the rotatable housing to the right of the ejection openings in such a way that the water jets leaving the centrifugal chamber project against said screen in order to generate fine droplets.

Description

« Dispositif générateur d'un brouillard d'eau » La présente invention concerne un dispositif générateur d'un brouillard d'eau. The present invention relates to a device for generating a water mist.
Dans différents domaines de la technique, il est souhaitable de pouvoir maintenir un taux d'humidité élevé donné dans des locaux tels que serres, halls de grande dimension, ateliers, usines, ...In different fields of technology, it is desirable to be able to maintain a high humidity level given in premises such as greenhouses, large halls, workshops, factories, etc.
Une telle exigence se rencontre également lors de la mise en œuvre de certains processus industriels, en particulier dans des processus de refroidissement de produits à l'état solide, gazeux, ou liquide, dans les processus de vaporisation ou encore dans des processus d'écrans thermiques, par exemple pour la transformation de l'eau de mer en eau douce.Such a requirement is also encountered during the implementation of certain industrial processes, in particular in processes for cooling products in solid, gaseous, or liquid state, in vaporization processes or even in screen processes. thermal, for example for the transformation of sea water into fresh water.
Or, on n'a jusqu'à présent jamais proposé de dispositif simple, robuste, fiable d'une manipulation aisée et parallèlement peu onéreux de nature à satisfaire à ces contraintes.However, we have so far never proposed a simple, robust, reliable device for easy handling and at the same time inexpensive to meet these constraints.
La présente invention a pour objet de proposer un dispositif générateur d'un brouillard d'eau de nature à combler cette lacune.The object of the present invention is to propose a device generating a water mist capable of filling this gap.
Selon l'invention, un tel dispositif est caractérisé en ce qu'il comporte d'une part un boîtier de révolution rotatif délimitant à sa partie interne une chambre centrifugeuse alimentée en eau et équipée sur sa paroi périphérique d'orifices permettant l'éjection de jets d'eau vers l'extérieur, et d'autre part un écran entourant le boîtier de révolution au droit des orifices d'éjection, de sorte que les jets d'eau sortant de la chambre centrifugeuse se projettent contre cet écran pour générer de fines gouttelettes.According to the invention, such a device is characterized in that it comprises on the one hand a rotary revolution box delimiting at its internal part a centrifuge chamber supplied with water and equipped on its peripheral wall with orifices allowing the ejection of jets of water to the outside, and on the other hand a screen surrounding the revolution box in line with the ejection orifices, so that the water jets leaving the centrifuge chamber are projected against this screen to generate fine droplets.
Selon l'invention, le boîtier de révolution est en règle général constitué par un élément essentiellement cylindrique d'axe médian sensiblement vertical dimensionné dans chaque cas particulier en fonction des besoins, notamment du volume du local à traiter et du taux d'humidité à maintenir.According to the invention, the revolution box is generally constituted by an essentially cylindrical element with a substantially vertical median axis dimensioned in each particular case according to needs, in particular the volume of the room to be treated and the humidity level to be maintained .
Pour permettre de produire des gouttelettes en grande quantité, le boîtier de révolution alimenté en eau est entraîné en rotation sur lui-même à grande vitesse par au moins un moteur de commande électrique ou hydraulique. Sous l'action de la force centrifuge produite par la rotation, du boîtier, l'eau alimentée à la partie interne de celui-ci est expulsée en jets vers l'extérieur suivant un angle qui dépend de la géométrie des orifices d'éjection et de la vitesse de rotation du boîtier. Ces jets d'eau qui ont une vitesse importante sont projetés contre l'écran ce qui provoque leur éclatement et la génération d'une grande quantité de fines gouttelettes.To make it possible to produce droplets in large quantities, the revolution box supplied with water is rotated on itself at high speed by at least one electric or hydraulic control motor. Under the action of the centrifugal force produced by the rotation of the housing, the water supplied to the internal part of the latter is expelled in jets towards the outside at an angle which depends on the geometry of the ejection orifices and the speed of rotation of the housing. These jets of water which have a high speed are projected against the screen which causes them to burst and the generation of a large quantity of fine droplets.
Il est essentiel conformément à l'invention de choisir l'orientation de l'écran en fonction de la géométrie des orifices d'éjection de sorte que l'angle d'impact des jets sur celui-ci entraîne la formation de gouttelettes aussi fines que possible.It is essential in accordance with the invention to choose the orientation of the screen as a function of the geometry of the ejection orifices so that the angle of impact of the jets on it causes the formation of droplets as fine as possible.
Selon une première variante de l'invention, l'écran est constitué par un cylindre perforé d'orifices calibrés au droit des orifices d'éjection du boîtier de révolution.According to a first variant of the invention, the screen consists of a cylinder perforated with calibrated orifices in line with the ejection orifices of the revolution box.
Selon cette variante, les jets d'eau sortant de la chambre centrifugeuse sont cisaillés au niveau des orifices calibrés permettant ainsi la génération de très fines gouttelettes.According to this variant, the water jets leaving the centrifuge chamber are sheared at the calibrated orifices thus allowing the generation of very fine droplets.
Selon une seconde variante de l'invention, l'écran est cons- titué par un ensemble de grilles entourant le boîtier de révolution au droit des orifices d'éjection.According to a second variant of the invention, the screen is constituted by a set of grids surrounding the revolution box in line with the ejection orifices.
Selon cette variante, les jets d'eau sortant de la chambre centrifugeuse viennent frapper les grilles et se brisent contre les fils de celles-ci de façon à provoquer leur éclatement en fines gouttelettes. Les grilles constituant l'écran conformément à cette seconde variante peuvent bien entendu avoir une configuration quelconque sans pour cela sortir du cadre de l'invention, et en particulier être constituées par l'assemblage de fils de tubes ou encore de profilés de diamètre et d'écartement variable. Selon une caractéristique préférentielle de l'invention, le dispositif générateur d'un brouillard d'eau comporte également un ventilateur.According to this variant, the water jets leaving the centrifuge chamber strike the grids and break against the wires thereof so as to cause them to burst into fine droplets. The grids constituting the screen in accordance with this second variant can of course have any configuration without departing from the scope of the invention, and in particular be constituted by the assembly of tube wires or of profiles of diameter and d '' variable spacing. According to a preferred characteristic of the invention, the device generating a water mist also includes a fan.
L'air mu par ce ventilateur permet de déplacer les gouttelettes d'eau générées et de les projeter vers des zones déterminées. Le ventilateur peut être entraîné en rotation sur lui-même à grande vitesse par au moins un moteur de commande électrique ou hydraulique, notamment conjointement au boîtier de révolution.The air moved by this fan makes it possible to move the droplets of water generated and to project them towards specific areas. The fan can be rotated on itself at high speed by at least one electric or hydraulic control motor, in particular in conjunction with the revolution box.
Selon une caractéristique préférentielle de l'invention, le moteur de commande est constitué par une turbine à eau à action ou à réaction telle qu'une turbine à eau de type Pelton ou une turbine à eau de type Francis. Cette caractéristique permet d'utiliser la pression de l'eau d'alimentation comme énergie motrice grâce à la mise en œuvre d'une roue à aubes ou d'une turbine. According to a preferred characteristic of the invention, the control motor is constituted by an action or reaction water turbine such as a Pelton type water turbine or a Francis type water turbine. This characteristic makes it possible to use the pressure of the feed water as motive energy thanks to the use of an impeller or a turbine.

Claims

R E V E N D I C A T I O N S 1 °) Dispositif générateur d'un brouillard d'eau, comportant d'une part un boîtier de révolution rotatif délimitant à sa partie interne une chambre centrifugeuse alimentée en eau et équipée sur sa paroi périphérique d'orifices permettant l'éjection de jets d'eau vers l'extérieur, et d'autre part un écran entourant le boîtier de révolution au droit des orifices d'éjection, de sorte que les jets d'eau sortant de la chambre centrifugeuse se projettent contre cet écran pour générer de fines gouttelettes, caractérisé en ce que le boîtier de révolution est entraîné en rotation sur lui-même à grande vitesse par une turbine à eau à action ou à réaction telle qu'une turbine à eau de type Pelton ou une turbine à eau de type Francis.1 °) Device generating a water mist, comprising on the one hand a rotary revolution housing delimiting at its internal part a centrifuge chamber supplied with water and equipped on its peripheral wall with orifices allowing the ejection of jets of water to the outside, and on the other hand a screen surrounding the revolution box in line with the ejection orifices, so that the water jets leaving the centrifuge chamber are projected against this screen to generate fines droplets, characterized in that the revolution housing is rotated on itself at high speed by an action or reaction water turbine such as a Pelton type water turbine or a Francis type water turbine.
2°) Dispositif selon la revendication 1 , caractérisé en ce que le boîtier de révolution est constitué par un élément essentiellement cylindrique d'axe médian sensiblement vertical.2) Device according to claim 1, characterized in that the revolution housing is constituted by an essentially cylindrical element with a substantially vertical median axis.
3°) Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que l'écran est constitué par un cylindre perforé d'orifices calibrés au droit des orifices d'éjection du boîtier de révolution.3 °) Device according to any one of claims 1 and 2, characterized in that the screen consists of a perforated cylinder of calibrated orifices at the right of the ejection orifices of the revolution box.
4°) Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que l'écran est constitué par un ensemble de grilles entourant le boîtier de révolution au droit des orifices d'éjection de sorte que les jets d'eau sortant de la chambre centrifugeuse se projettent contre ces grilles pour générer de fines gouttelettes.4 °) Device according to any one of claims 1 and 2, characterized in that the screen is constituted by a set of grids surrounding the revolution box in line with the ejection orifices so that the jets of water leaving of the centrifuge chamber project against these grids to generate fine droplets.
5°) Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu' il comporte un ventilateur entraîné en rotation sur lui-même à grande vitesse de façon à permettre de déplacer les gouttelettes d'eau générées vers des zones déterminées.5 °) Device according to any one of claims 1 to 4, characterized in that it comprises a fan driven in rotation on itself at high speed so as to allow the water droplets generated to be displaced towards determined zones .
6°) Dispositif selon la revendication 5, caractérisé en ce que le ventilateur est entraîné en rotation par la turbine à eau à action ou à réaction. 6 °) Device according to claim 5, characterized in that the fan is rotated by the action or reaction water turbine.
PCT/FR2004/001049 2003-04-30 2004-04-30 Device for generating a water fog WO2004098789A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305331A FR2854336B1 (en) 2003-04-30 2003-04-30 DEVICE GENERATING A WATER MIST
FR03/05331 2003-04-30

Publications (2)

Publication Number Publication Date
WO2004098789A2 true WO2004098789A2 (en) 2004-11-18
WO2004098789A3 WO2004098789A3 (en) 2005-02-17

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FR (1) FR2854336B1 (en)
WO (1) WO2004098789A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076544A (en) * 2019-06-13 2020-12-15 广东美的制冷设备有限公司 Screen assembly, air purification device and air conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1339303A (en) * 1918-03-18 1920-05-04 G M Parks Company Vaporizing device
US4278617A (en) * 1980-03-03 1981-07-14 Envirotech Corporation Humidifier
FR2685454A1 (en) * 1991-12-23 1993-06-25 Seb Sa Device for thermal atmospheric conditioning
WO2001026447A1 (en) * 1999-10-15 2001-04-19 Sang Bok Oh Humidifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1339303A (en) * 1918-03-18 1920-05-04 G M Parks Company Vaporizing device
US4278617A (en) * 1980-03-03 1981-07-14 Envirotech Corporation Humidifier
FR2685454A1 (en) * 1991-12-23 1993-06-25 Seb Sa Device for thermal atmospheric conditioning
WO2001026447A1 (en) * 1999-10-15 2001-04-19 Sang Bok Oh Humidifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112076544A (en) * 2019-06-13 2020-12-15 广东美的制冷设备有限公司 Screen assembly, air purification device and air conditioner

Also Published As

Publication number Publication date
FR2854336A1 (en) 2004-11-05
FR2854336B1 (en) 2007-04-06
WO2004098789A3 (en) 2005-02-17

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