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EP1859204A1 - Humidifier with maximum decontamination - Google Patents

Humidifier with maximum decontamination

Info

Publication number
EP1859204A1
EP1859204A1 EP06726007A EP06726007A EP1859204A1 EP 1859204 A1 EP1859204 A1 EP 1859204A1 EP 06726007 A EP06726007 A EP 06726007A EP 06726007 A EP06726007 A EP 06726007A EP 1859204 A1 EP1859204 A1 EP 1859204A1
Authority
EP
European Patent Office
Prior art keywords
misting
ramp
liquid
pump
uvc
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
EP06726007A
Other languages
German (de)
French (fr)
Other versions
EP1859204B1 (en
Inventor
Lionel Nicolai
Alain Nicolai
Robert Castro
Marc Lassus
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.)
MEDCLAN
Original Assignee
Castro Robert
Lassus Marc
Nicolai Alain
Nicolai Lionel
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
Priority claimed from FR0502154A external-priority patent/FR2875718B1/en
Application filed by Castro Robert, Lassus Marc, Nicolai Alain, Nicolai Lionel filed Critical Castro Robert
Publication of EP1859204A1 publication Critical patent/EP1859204A1/en
Application granted granted Critical
Publication of EP1859204B1 publication Critical patent/EP1859204B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • 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
    • 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
    • F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles

Definitions

  • the present invention relates to water misting devices intended primarily for all places requiring a bacteriologically perfect hygiene such as industrial installations requiring misting devices, and concerns in particular a misting device with maximum decontamination.
  • the fogging of a liquid, and in particular the misting using water is a cooling technique increasingly used in public places to fight against heat stroke especially during periods of heat wave. It consists in projecting water microdroplets with a size varying from 3 ⁇ to 20 ⁇ using misting nozzles using a high-pressure pump between 45 and 110 bar.
  • the contamination process also involves other bacteria or viruses that cause diseases such as SARS or bird flu. These diseases can be transmitted by all aerolization processes such as misting which generate droplets whose inhalation by the respiratory tract generates very serious lethal pulmonary lesions.
  • the object of the invention is to provide a misting device in which the liquid droplets provided by the misting nozzles do not contain pathogenic microorganisms.
  • the object of the invention is therefore a misting device comprising a misting ramp comprising a plurality of misting nozzles, a liquid source supplying the liquid for supplying the misting ramp, a pump adapted to supply under high pressure, typically between 45 and 110 bar, the liquid from the source to the misting ramp.
  • the device also includes at least one particle filter retaining particles having a size greater than about 1 ⁇ and receiving the liquid from the source, an ultrafiltration filter receiving the liquid from the particulate filter to retain microorganisms having a larger size. at 0.2 ⁇ , and a UVC ramp chamber with one or more lamps UVC placed in quartz sheaths receiving the liquid from the ultrafiltration filter and adapted to destroy microorganisms with a size less than 0.2 ⁇ .
  • the device further comprises a dosing pump placed after the UVC ramp chamber, the dosing pump regularly supplying biocidal or virucidal products in order to prevent the formation of a biofilm in the pipes between the pump and the boom. misting.
  • the embodiment of the misting device illustrated in the single figure is mainly used in industrial installations requiring permanent misting such as paper mills or waste disposal centers, but also in poultry installations or greenhouses. It can also be used in hospitals and retirement homes.
  • misting consists of bringing into the air fine droplets of water which are very quickly evaporated. This causes changes in the physical characteristics of the ambient air which result in an increase in hygrometry and adiabatic cooling (that is to say without heat exchange with the outside) by evaporation of the water causing a lowering of the temperature of the atmosphere.
  • the nozzles consist of a pressurizing chamber in which is located a finned stainless cylinder.
  • the water projected against this cylinder acts as a lubricant by rotating it and breaking up into microscopic particles smaller than 10 ⁇ which are driven outside by the high pressure.
  • a flow of air is created to the extent that the hygrometric degree of air in the whole room tends to become uniform. This gives a natural ventilation of the room. Note that it is also possible to install a fan if you want to get faster ventilation.
  • the water inlet pipe 11 from the source 10 supplies the water to a series of three filters, two particulate filters 50 and 52 and an ultrafiltration filter 18 followed by a UVC ultraviolet radiation beam 20 (Ultra Purple Type C) to destroy all microorganisms less than 0.2 ⁇ in size and mainly viruses that are too small to be retained by the ultrafiltration filter.
  • a UVC ultraviolet radiation beam 20 Ultra Purple Type C
  • the first filter 50 is a positively charged filter stopping all particles larger than 4,5 ⁇ .
  • the second filter 52 stops all particles and colloidal materials larger than 0.5 ⁇ .
  • the ultrafiltration filter 18 retains a large part of the microorganisms, that is to say all those whose size is greater than 0.2 ⁇ and which, otherwise, could screen for microorganisms of infinitesimal size such as viruses that are eliminated by the UVC ramp, and retains in particular the bacteria present in the water.
  • the UVC ramp 20 consists of one or more low pressure mercury vapor lamps emitting at the germicidal wavelength of 253.7 to 258 nanometers. These lamps are placed in quartz sheaths. Water circulates in the treatment chamber 20 around the sheaths, quartz. These sheaths serve as separation between the lamp (s) and the liquid as electrical and thermal insulation and allow operation at an optimum temperature.
  • An UV meter 32 permanently indicates in percentage with respect to the intensity of the lamp emitted at the beginning of life, the intensity received at the most unfavorable point of the chamber. It is an indicator of efficiency that takes into account all the parameters influencing performance such as lamp aging, fouling of quartz sheaths covering the lamps and the deterioration of the quality of the water.
  • the UVmeter can control an alarm device (not shown) that triggers when the intensity emitted by the lamps is insufficient to ensure perfect decontamination of the water.
  • An automatic cleaning device 34 may be connected to the UVC ramp chamber 20. This device acts by scraping to remove deposits that may have formed on the quartz sheaths and thus mask the radiation. This device thus avoids the disassembly of the lamps and the emptying of the chamber. It can be triggered according to two modes of operation: either by the intensity decrease of the UVC radiation measured by the UVmeter 32, or by programming a regular cycle which depends on the operating time of the UVC lamps.
  • misting ramps can have total lengths of 400 m. It is therefore absolutely necessary to secure the entire device to be able to prevent the formation of a biofilm of microorganisms such as legionella in the pipes leading to the misting ramp by regular treatment by means of a metering pump 53 allowing inject regularly products fighting against the formation of this biofilm. Such products are biocidal compounds destroying bacteria or better, virucidal compounds destroying both viruses and bacteria. In this way, the quality of the water circulating in the device will be equal to that obtained at the exit of the UVC ramp. Since the products supplied by the metering pump 53 can cause rapid shut-off of misting nozzles, it is advisable to add a filter antiparticles 54 for stopping particles larger than 5 ⁇ at the outlet of the metering pump 53.
  • the misting device is drained so as to eliminate the slightest risk of contamination.
  • all the pipes connecting the elements of the misting device such as the pipe 11 from the source 10 or the pipe 28 connecting the pump 12 to the misting ramp 14 are preferably copper which is a bactericidal metal or alloy of copper.
  • the misting device according to the invention can also be used in public places such as motorway areas, railway stations, airport lobbies, or private places such as patios, restaurant terraces, shops, etc. It can also be used in professional sites such as greenhouses, fish stalls, vegetable stalls or humid Aero-refrigerant towers (TAR).
  • public places such as motorway areas, railway stations, airport lobbies, or private places such as patios, restaurant terraces, shops, etc. It can also be used in professional sites such as greenhouses, fish stalls, vegetable stalls or humid Aero-refrigerant towers (TAR).
  • TAR humid Aero-refrigerant towers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Air Humidification (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

The invention concerns a humidifier comprising a fogging ramp ( 14 ), a water source ( 10 ) for feeding the humidifying manifold, a pump ( 12 ) adapted to supply water under high pressure to the humidifying manifold, at least one particulate filter ( 50, 52 ) retaining the particles having a size greater than about 1mu and receiving water from the source, an ultrafiltration filter ( 18 ) receiving water from the particulate filter to retain microorganisms having a size greater than 0.2 mum, and a UV-C manifold chamber ( 20 ) including one or more UV-C lamps arranged in quartz sheaths for receiving water from the ultrafiltration filter and adapted to destroy micro-organisms whereof the size is greater than 0.2 mum. The device further comprises a metering pump ( 53 ) arranged next to the UV-C manifold chamber and regularly supplying biocidal or virucidal products to prevent a biofilm from being formed in the pipes between the pump and the humidifying manifold.

Description

Dispositif de brumisation à décontamination maximale Misting device with maximum decontamination
Domaine de l' inventionField of the invention
La présente invention concerne les dispositifs de brumisation d' eau destinés principalement à tous les lieux exigeant une hygiène parfaite sur le plan bactériologique tels que les installations industrielles nécessitant des dispositifs de brumisation, et concerne en particulier un dispositif de brumisation à décontamination maximale.The present invention relates to water misting devices intended primarily for all places requiring a bacteriologically perfect hygiene such as industrial installations requiring misting devices, and concerns in particular a misting device with maximum decontamination.
Etat de la techniqueState of the art
La brumisation d'un liquide, et en particulier la brumisation utilisant de l'eau, est une technique de refroidissement de plus en plus utilisée dans les lieux publics pour lutter contre les coups de chaleur en particulier durant les périodes de canicule. Elle consiste à projeter à l'aide de buses de brumisation des microgouttelettes d'eau ayant une taille variant de 3 μ à 20 μ au moyen d'une pompe à haute pression entre 45 et 110 bars .The fogging of a liquid, and in particular the misting using water, is a cooling technique increasingly used in public places to fight against heat stroke especially during periods of heat wave. It consists in projecting water microdroplets with a size varying from 3 μ to 20 μ using misting nozzles using a high-pressure pump between 45 and 110 bar.
C'est un procédé relativement économique, souple d'emploi, efficace et bien accepté par les utilisateurs. Malheureusement, très peu de précautions sont prises dans les systèmes existants pour s'assurer que l'eau vaporisée ne contient pas de microorganismes pathogènes. Pourtant, la technique de brumisation, à cause de ses caractéristiques intrinsèques, a pour faculté de favoriser la prolifération des microorganismes.It is a relatively economical process, flexible of use, effective and well accepted by the users. Unfortunately, very little care is taken in existing systems to ensure that the sprayed water does not contain pathogenic microorganisms. However, the technique of misting, because of its intrinsic characteristics, has the ability to promote the proliferation of microorganisms.
Ceci est particulièrement vrai pour les risques de contamination par la bactérie légionelle. Or, le nombre de cas de légionellose déclarés est en constante augmentation, et la majorité de ces cas concerne plus spécifiquement les personnes fragilisées telles que les personnes âgées porteuses de maladies chroniques, mais aussi, plus récemment, les plus jeunes. Cette contamination est due principalement à une catégorie de légionelles, Legionella pneumophila .This is especially true for the risks of contamination with legionella bacteria. However, the number of reported cases of Legionnaires' disease is constantly increasing, and the majority of these cases relate more specifically to vulnerable people such as elderly people with chronic diseases, but also, more recently, the youngest. This contamination is mainly due to a class of Legionella, Legionella pneumophila.
Le processus de contamination concerne aussi d' autres bactéries ou virus entraînant des maladies telles que le SRAS ou la grippe aviaire. Ces maladies peuvent se transmettre par tous les processus d' aérolisation tels que la brumisation qui génèrent des gouttelettes dont l'inhalation par les voies respiratoires est génératrice d'atteintes pulmonaires gravissimes souvent létales.The contamination process also involves other bacteria or viruses that cause diseases such as SARS or bird flu. These diseases can be transmitted by all aerolization processes such as misting which generate droplets whose inhalation by the respiratory tract generates very serious lethal pulmonary lesions.
Exposé de l'invention C'est pourquoi le but de l'invention est de fournir un dispositif de brumisation dans lequel les gouttelettes de liquide fournies par les buses de brumisation ne contiennent pas de microorganismes pathogènes.SUMMARY OF THE INVENTION Therefore, the object of the invention is to provide a misting device in which the liquid droplets provided by the misting nozzles do not contain pathogenic microorganisms.
L'objet de l'invention est donc un dispositif de brumisation comprenant une rampe de brumisation comportant une pluralité de buses de brumisation, une source de liquide fournissant le liquide destiné à alimenter la rampe de brumisation, une pompe adaptée pour fournir sous haute pression, généralement entre 45 et 110 bars, le liquide provenant de la source à la rampe de brumisation. Le dispositif comprend également au moins un filtre à particules retenant les particules ayant une dimension supérieure à environ 1 μ et recevant le liquide provenant de la source, un filtre à ultrafiltration recevant le liquide provenant du filtre à particules pour retenir les microorganismes ayant une dimension supérieure à 0,2μ, et une chambre à rampe UVC comportant une ou plusieurs lampes UVC placées dans des gaines de quartz recevant le liquide provenant du filtre à ultrafiltration et adaptée pour détruire les microorganismes dont la dimension est inférieure à 0,2μ. Le dispositif comprend en outre une pompe doseuse placée à la suite de la chambre à rampe UVC, la pompe doseuse fournissant régulièrement des produits biocides ou virucides dans le but d'empêcher la formation d'un biofilm dans les tuyaux entre la pompe et la rampe de brumisation.The object of the invention is therefore a misting device comprising a misting ramp comprising a plurality of misting nozzles, a liquid source supplying the liquid for supplying the misting ramp, a pump adapted to supply under high pressure, typically between 45 and 110 bar, the liquid from the source to the misting ramp. The device also includes at least one particle filter retaining particles having a size greater than about 1 μ and receiving the liquid from the source, an ultrafiltration filter receiving the liquid from the particulate filter to retain microorganisms having a larger size. at 0.2μ, and a UVC ramp chamber with one or more lamps UVC placed in quartz sheaths receiving the liquid from the ultrafiltration filter and adapted to destroy microorganisms with a size less than 0.2μ. The device further comprises a dosing pump placed after the UVC ramp chamber, the dosing pump regularly supplying biocidal or virucidal products in order to prevent the formation of a biofilm in the pipes between the pump and the boom. misting.
Description brève des dessinsBrief description of the drawings
Les buts, objets et caractéristiques de l'invention apparaîtront plus clairement à la lecture de la description qui suit faite en référence à la figure unique qui est un bloc-diagramme représentant un mode de réalisation préférentiel du dispositif de brumisation selon l' invention.The objects, objects and features of the invention will appear more clearly on reading the following description made with reference to the single figure which is a block diagram showing a preferred embodiment of the misting device according to the invention.
Description détaillée de l'invention Bien que le dispositif selon l'invention représenté sur la figure unique puisse utiliser n'importe quel liquide, le mode de réalisation préférentiel décrit ci- dessous utilise de l'eau.DETAILED DESCRIPTION OF THE INVENTION Although the device according to the invention shown in the single figure can use any liquid, the preferred embodiment described below uses water.
Le mode de réalisation du dispositif de brumisation illustré sur la figure unique est principalement utilisé dans les installations industrielles nécessitant une brumisation permanente comme les usines à papier ou les déchetteries, mais également dans les installations avicoles ou les serres. Il peut également être utilisé dans les milieux hospitaliers et les maisons de retraite.The embodiment of the misting device illustrated in the single figure is mainly used in industrial installations requiring permanent misting such as paper mills or waste disposal centers, but also in poultry installations or greenhouses. It can also be used in hospitals and retirement homes.
Il comprend, comme tout dispositif de brumisation de ce type, une source d'eau 10 qui est généralement le réseau de distribution d'eau, une pompe 12 adaptée pour fournir l'eau en sortie à une haute pression comprise entre 45 et 110 bars, et une rampe de brumisation 14 comportant des buses de brumisation (non montrées) . Bien que ceci ne fasse pas l'objet de l'invention, il est rappelé que la brumisation consiste à amener dans l'air de fines goutteletteë d' eau qui sont très rapidement évaporées . Ceci provoque des changements dans les caractéristiques physiques de l'air ambiant qui se traduisent par une augmentation d'hygrométrie et un refroidissement adiabatique (c'est-à-dire sans échange de chaleur avec l'extérieur) par évaporation de l'eau entraînant un abaissement de température de l'atmosphère. Les buses sont constituées d'une chambre de pressurisation dans laquelle est situé un cylindre inoxydable à ailettes. L'eau projetée contre ce cylindre joue le rôle d'un lubrifiant en le faisant tourner et se désagrège en particules microscopiques inférieures à lOμ qui sont entraînées à l'extérieur par la haute pression. Il se crée un courant d'air dans la mesure où le degré hygrométrique de l'air de toute la pièce tend à s'uniformiser. On obtient alors une ventilation naturelle de la pièce. A noter qu'il est également possible d'installer un ventilateur si l'on désire obtenir une ventilation plus rapide.It includes, as any misting device of this type, a water source 10 which is generally the water distribution network, a pump 12 adapted to provide the outlet water at a high pressure between 45 and 110 bar, and a misting ramp 14 comprising misting nozzles (not shown). Although this is not the subject of the invention, it is recalled that misting consists of bringing into the air fine droplets of water which are very quickly evaporated. This causes changes in the physical characteristics of the ambient air which result in an increase in hygrometry and adiabatic cooling (that is to say without heat exchange with the outside) by evaporation of the water causing a lowering of the temperature of the atmosphere. The nozzles consist of a pressurizing chamber in which is located a finned stainless cylinder. The water projected against this cylinder acts as a lubricant by rotating it and breaking up into microscopic particles smaller than 10μ which are driven outside by the high pressure. A flow of air is created to the extent that the hygrometric degree of air in the whole room tends to become uniform. This gives a natural ventilation of the room. Note that it is also possible to install a fan if you want to get faster ventilation.
Le tuyau d'arrivée d'eau 11 provenant de la source 10 amène l'eau à une série de trois filtres, deux filtres à particules 50 et 52 et un filtre à ultrafiltration 18 suivi d'une rampe à rayonnement ultraviolet UVC 20 (Ultra Violet Type C) pour détruire tous les microorganismes dont la dimension est inférieure à 0.2μ et principalement les virus qui sont trop petits pour être retenus par le filtre à ultrafiltration.The water inlet pipe 11 from the source 10 supplies the water to a series of three filters, two particulate filters 50 and 52 and an ultrafiltration filter 18 followed by a UVC ultraviolet radiation beam 20 (Ultra Purple Type C) to destroy all microorganisms less than 0.2μ in size and mainly viruses that are too small to be retained by the ultrafiltration filter.
Le premier filtre 50 est un filtre chargé positivement arrêtant toutes les particules d'une taille supérieure à 4,5μ. Le deuxième filtre 52 arrête toutes les particules et les matières colloïdales d'une taille supérieure à 0,5μ. Comme la rampe UVC ne peut fonctionner correctement que si l'eau n'est pas trouble, il faut donc réduire la turbidité de l'eau ainsi que les matières en suspension (MES). D'où la nécessité de placer des filtres à particules en amont.The first filter 50 is a positively charged filter stopping all particles larger than 4,5μ. The second filter 52 stops all particles and colloidal materials larger than 0.5μ. As the UVC boom can only function properly if the water is not cloudy, it is necessary to reduce the turbidity of the water as well as the suspended matter (MES). Hence the need to place particle filters upstream.
Le filtre à ultrafiltration 18 retient une grande partie des microorganismes, c'est-à-dire tous ceux dont la dimension est supérieure à 0.2 μ et qui, sans cela, pourraient faire écran pour les microorganismes de taille infinitésimale tels que les virus qui sont éliminés par la rampe UVC, et retient en particulier les bactéries présentes dans l'eau.The ultrafiltration filter 18 retains a large part of the microorganisms, that is to say all those whose size is greater than 0.2 μ and which, otherwise, could screen for microorganisms of infinitesimal size such as viruses that are eliminated by the UVC ramp, and retains in particular the bacteria present in the water.
A noter que le filtre à particules 50 qui protège les deux filtres suivants, est peu coûteux et est changé fréquemment, par exemple une fois par mois. Le deuxième filtre 52 n'est changé que tous les six mois, et le filtre à ultrafiltration 18, plus coûteux, ne peut être changé qu'une fois par an. La rampe UVC 20 se compose d'une ou plusieurs lampes à vapeur de mercure basse pression émettant à la longueur d'onde germicide de 253,7 à 258 nanomètres. Ces lampes sont placées dans des gaines en quartz. L'eau circule dans la chambre de traitement 20 autour des gaines, en quartz. Ces gaines servent de séparation • entre la ou les lampes et le liquide comme isolation électrique et thermique et permettent un fonctionnement à une température optimale.Note that the particulate filter 50 which protects the following two filters, is inexpensive and is changed frequently, for example once a month. The second filter 52 is changed only every six months, and the ultrafiltration filter 18, which is more expensive, can only be changed once a year. The UVC ramp 20 consists of one or more low pressure mercury vapor lamps emitting at the germicidal wavelength of 253.7 to 258 nanometers. These lamps are placed in quartz sheaths. Water circulates in the treatment chamber 20 around the sheaths, quartz. These sheaths serve as separation between the lamp (s) and the liquid as electrical and thermal insulation and allow operation at an optimum temperature.
Un UVmètre 32 indique en permanence en pourcentage par rapport à l'intensité de la lampe émise en début de vie, l'intensité reçue au point le plus défavorable de la chambre. Il constitue un indicateur d'efficacité qui prend en compte tous les paramètres influençant les performances tels que le vieillissement des lampes, l'encrassement des gaines de quartz recouvrant les lampes et la dégradation de la qualité de l'eau. L'UVmètre permet de piloter un dispositif d'alarme (non montré) qui se déclenche lorsque l'intensité émise par les lampes est insuffisante pour assurer une décontamination parfaite de l'eau.An UV meter 32 permanently indicates in percentage with respect to the intensity of the lamp emitted at the beginning of life, the intensity received at the most unfavorable point of the chamber. It is an indicator of efficiency that takes into account all the parameters influencing performance such as lamp aging, fouling of quartz sheaths covering the lamps and the deterioration of the quality of the water. The UVmeter can control an alarm device (not shown) that triggers when the intensity emitted by the lamps is insufficient to ensure perfect decontamination of the water.
Un dispositif de nettoyage automatique 34 peut être relié à la chambre à rampe UVC 20. Ce dispositif agit par raclage pour éliminer les dépôts qui ont pu se former sur les gaines de quartz et masquer ainsi le rayonnement. Ce dispositif évite donc le démontage des lampes et la vidange de la chambre. Il peut être déclenché selon deux modes de fonctionnement : soit par la baisse d'intensité du rayonnement UVC mesuré par l'UVmètre 32, soit par programmation d'un cycle régulier qui dépend de la durée de fonctionnement des lampes UVC.An automatic cleaning device 34 may be connected to the UVC ramp chamber 20. This device acts by scraping to remove deposits that may have formed on the quartz sheaths and thus mask the radiation. This device thus avoids the disassembly of the lamps and the emptying of the chamber. It can be triggered according to two modes of operation: either by the intensity decrease of the UVC radiation measured by the UVmeter 32, or by programming a regular cycle which depends on the operating time of the UVC lamps.
Dans les applications industrielles, les rampes de brumisation peuvent avoir des longueurs totales de 400 m. Il est donc absolument nécessaire pour sécuriser l'ensemble du dispositif de pouvoir empêcher la formation d'un biofilm de microorganismes tels que les légionelles dans les tuyaux aboutissant à la rampe de brumisation par un traitement régulier au moyen d'une pompe doseuse 53 permettant d'injecter régulièrement des produits luttant contre la formation de ce biofilm. De tels produits sont des composés ' biocides détruisant les bactéries ou mieux, des composés virucides détruisant aussi bien les virus que les bactéries. De cette manière, la qualité de l'eau circulant dans le dispositif sera égale à celle obtenue à la sortie de la rampe UVC. Comme les produits fournis par la pompe doseuse 53 peuvent entraîner une obturation rapide de buses de brumisation, il est judicieux d'ajouter un filtre antiparticules 54 pour arrêter les particules d'une taille supérieure à 5μ à la sortie de la pompe doseuse 53.In industrial applications, misting ramps can have total lengths of 400 m. It is therefore absolutely necessary to secure the entire device to be able to prevent the formation of a biofilm of microorganisms such as legionella in the pipes leading to the misting ramp by regular treatment by means of a metering pump 53 allowing inject regularly products fighting against the formation of this biofilm. Such products are biocidal compounds destroying bacteria or better, virucidal compounds destroying both viruses and bacteria. In this way, the quality of the water circulating in the device will be equal to that obtained at the exit of the UVC ramp. Since the products supplied by the metering pump 53 can cause rapid shut-off of misting nozzles, it is advisable to add a filter antiparticles 54 for stopping particles larger than 5μ at the outlet of the metering pump 53.
Régulièrement, le dispositif de brumisation est vidangé de façon à éliminer le moindre risque de contamination. Pour ce faire, il existe deux sorties de vidange situées en partie basse : la sortie de vidange 42 pour la rampe de brumisation et la sortie de vidange 44 pour la pompe.Regularly, the misting device is drained so as to eliminate the slightest risk of contamination. To do this, there are two emptying outlets located at the bottom: the discharge outlet 42 for the misting ramp and the emptying outlet 44 for the pump.
A noter que tous les tuyaux reliant les éléments du dispositif de brumisation tels que le tuyau 11 provenant de la source 10 ou le tuyau 28 connectant la pompe 12 à la rampe de brumisation 14 sont de préférence en cuivre qui est un métal bactéricide ou en alliage de cuivre.Note that all the pipes connecting the elements of the misting device such as the pipe 11 from the source 10 or the pipe 28 connecting the pump 12 to the misting ramp 14 are preferably copper which is a bactericidal metal or alloy of copper.
Le dispositif de brumisation selon l'invention peut aussi être utilisé dans les lieux publics tels que les aires d'autoroutes, les gares, les halls d'aéroports, ou des lieux privés tels que les patios, les terrasses de restaurants, magasins etc. Il peut également être utilisé dans les sites professionnels tels que les serres, étals de poissons, étals de légumes ou les tours Aéro-réfrigérantes (TAR) humides . The misting device according to the invention can also be used in public places such as motorway areas, railway stations, airport lobbies, or private places such as patios, restaurant terraces, shops, etc. It can also be used in professional sites such as greenhouses, fish stalls, vegetable stalls or humid Aero-refrigerant towers (TAR).

Claims

REVENDICATIONS
1. Dispositif de brumisation comprenant une rampe de brumisation (14) comportant une pluralité de buses de brumisation, une source de liquide (10) fournissant le liquide destiné à alimenter ladite rampe de brumisation, une pompe 5 (12) adaptée pour fournir sous haute pression, généralement entre 45 et 110 bars, le liquide provenant de ladite source à ladite rampe de brumisation ; ledit dispositif comprenant également au moins un filtre à particules (50, 52) recevant le liquide provenant de ladite source et retenant les particulesA misting device comprising a misting ramp (14) having a plurality of misting nozzles, a liquid source (10) supplying the liquid for supplying said misting ramp, a pump (12) adapted to supply under high pressure, generally between 45 and 110 bar, the liquid from said source to said misting ramp; said device also comprising at least one particulate filter (50, 52) receiving the liquid from said source and retaining the particles
[0 ayant une dimension supérieure à environ lμ, un filtre à ultrafiltration (18) recevant le liquide provenant dudit filtre à particules pour retenir les microorganismes ayant une dimension supérieure à 0,2μ, et une chambre à rampe UVC (20) comportant une ou plusieurs lampes UVC placées dans des gaines[0 having a size greater than about 1μ, an ultrafiltration filter (18) receiving liquid from said particulate filter for retaining microorganisms having a size greater than 0.2μ, and a UVC ramp chamber (20) having one or more several UVC lamps placed in sheaths
15 de quartz recevant le liquide provenant dudit filtre à ultrafiltration et adaptée pour détruire les microorganismes dont la dimension est inférieure à 0,2μ ; ledit dispositif étant caractérisé en ce qu'il comprend en outre une pompe doseuse (53) placée à la suite de ladite 0 chambre à rampe UVC, ladite pompe doseuse fournissant régulièrement des produits biocides ou virucides dans le but d'empêcher la formation d'un biofilm dans les tuyaux entre ladite pompe et ladite rampe de brumisation.Quartz crystal receiving liquid from said ultrafiltration filter and adapted to destroy microorganisms less than 0.2μ in size; said device being characterized in that it further comprises a metering pump (53) placed following said UVC ramp chamber, said metering pump regularly supplying biocidal or virucidal products for the purpose of preventing formation of a biofilm in the pipes between said pump and said misting ramp.
2. Dispositif selon la revendication 1, dans lequel un 5 UVmètre (32) est associé à ladite chambre à rampe UVC (20), ledit UVmètre indiquant en permanence la dosé reçue au point le plus défavorable de la chambre en pourcentage par rapport à l'intensité de ou des lampes émise en début de vie.2. Device according to claim 1, wherein an UV meter (32) is associated with said UVC ramp chamber (20), said UV meter continuously indicating the dosage received at the worst point of the chamber in percent relative to the intensity of lamps emitted at the beginning of life.
3. Dispositif selon la revendication 2, dans lequel un 0 dispositif de nettoyage automatique (34) est associé à ladite chambre à rampe UVC (20), ledit dispositif de nettoyage automatique agissant par raclage pour éliminer les dépôts qui ont pu se former sur les gaines de quartz entourant les- lampes .Apparatus according to claim 2, wherein an automatic cleaning device (34) is associated with said UVC ramp chamber (20), said scraping automatic cleaning device for removing deposits which could have formed on the quartz sheaths surrounding the lamps.
5 4. Dispositif selon la revendication 1, 2 ou 3, comprenant un premier filtre à particules (50) retenant les particules d'une taille supérieure à lμ suivi d'un deuxième filtre à particules (52) retenant les particules ou les substances colloïdales d'une taille supérieure à 0,5μ.The device of claim 1, 2 or 3, comprising a first particulate filter (50) retaining particles larger than 1μ followed by a second particulate filter (52) retaining particles or colloidal substances. greater than 0.5μ.
0 5. Dispositif selon la revendication 4, comprenant en outre un filtre à particules (54) placé à la suite de ladite pompe doseuse retenant les particules d'une taille supérieure à 5μ.The device according to claim 4, further comprising a particulate filter (54) positioned subsequent to said metering pump holding particles larger than 5μ.
6. Dispositif selon la revendication 4 ou 5f comprenant -5 eh outre des sorties de vidange situées en partie basse, et en particulier une sortie de vidange (42) pour ladite rampe de brumisation (14) et une sortie de vidange (44) pour ladite pompe (12) .6. Device according to claim 4 or 5 f comprising -5h besides draining outlets located at the bottom, and in particular a drain outlet (42) for said misting ramp (14) and a drain outlet (44). for said pump (12).
7. Dispositif selon l'une des revendications 1 à 6, dans 0 lequel tous les tuyaux (11, 24, 28Λ 30) reliant les éléments du dispositif de brumisation sont en cuivre.7. Device according to one of claims 1 to 6, wherein 0 all pipes (11, 24, 28 Λ 30) connecting the elements of the misting device are copper.
8. Dispositif selon l'une des revendications 1 à 7, dans lequel ladite source de liquide (10) est une source d'eau.8. Device according to one of claims 1 to 7, wherein said source of liquid (10) is a source of water.
9. Utilisation du dispositif selon l'une des 5 revendications 1 à 8, dans les installations industrielles ou avicoles nécessitant un dispositif de brumisation, et en particulier dans les usines à papier. 9. Use of the device according to one of claims 1 to 8, in industrial or poultry installations requiring a misting device, and in particular in paper mills.
EP06726007A 2005-03-03 2006-03-02 Humidifier with maximum decontamination Not-in-force EP1859204B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0502154A FR2875718B1 (en) 2004-09-28 2005-03-03 MISCELLANEOUS DEVICE WITH MAXIMUM DECONTAMINATION
PCT/FR2006/000467 WO2006092506A1 (en) 2005-03-03 2006-03-02 Humidifier with maximum decontamination

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EP1859204A1 true EP1859204A1 (en) 2007-11-28
EP1859204B1 EP1859204B1 (en) 2008-12-10

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EP (1) EP1859204B1 (en)
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KR (1) KR20070110508A (en)
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AT (1) ATE417232T1 (en)
AU (1) AU2006219801A1 (en)
BR (1) BRPI0607398A2 (en)
CA (1) CA2593219A1 (en)
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ES (1) ES2319928T3 (en)
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CN103557025B (en) * 2013-11-06 2016-06-29 淮南市百邦气动科技有限公司 A kind of pneumatic high-pressure micro-fog dust collector

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KR20070110508A (en) 2007-11-19
WO2006092506A1 (en) 2006-09-08
ATE417232T1 (en) 2008-12-15
RU2007136485A (en) 2009-04-10
EP1859204B1 (en) 2008-12-10
US20080156901A1 (en) 2008-07-03
DE602006004192D1 (en) 2009-01-22
CN101133287A (en) 2008-02-27
ES2319928T3 (en) 2009-05-14
JP2008532738A (en) 2008-08-21
CA2593219A1 (en) 2006-09-08
BRPI0607398A2 (en) 2011-02-22
AU2006219801A1 (en) 2006-09-08
CN100554799C (en) 2009-10-28

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