WO2022208013A1 - Automatic disinfection system and associated disinfection method - Google Patents

Automatic disinfection system and associated disinfection method Download PDF

Info

Publication number
WO2022208013A1
WO2022208013A1 PCT/FR2022/050575 FR2022050575W WO2022208013A1 WO 2022208013 A1 WO2022208013 A1 WO 2022208013A1 FR 2022050575 W FR2022050575 W FR 2022050575W WO 2022208013 A1 WO2022208013 A1 WO 2022208013A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
disinfection system
disinfectant composition
pressure
composition
Prior art date
Application number
PCT/FR2022/050575
Other languages
French (fr)
Inventor
Guillaume Planques
Sébastien FERRARE
Alain Rolle
Alain DUTOIT
Original Assignee
3Gpn
Hsf
Har
Carre D'or Developpement
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 3Gpn, Hsf, Har, Carre D'or Developpement filed Critical 3Gpn
Publication of WO2022208013A1 publication Critical patent/WO2022208013A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers

Definitions

  • the present invention relates to the field of automatic disinfection and it relates to a disinfection system as well as the associated disinfection method.
  • the invention is particularly effective in combating the Coronavirus SARS-CoV-2 pandemic or one of its variants, called COVID 19, by distributing a biocidal, in particular virucidal, disinfectant composition suitable for limiting the risk of transmission of pathogens, for example a virus, between several people circulating in a space.
  • the present invention finds applications in multiple fields, in particular for disinfecting an enclosed space receiving a large flow of people such as a bus, a train, a tram, a hall or even an office.
  • variable is meant a virus having undergone one or more mutations during its replication.
  • This disinfection system uses a disinfectant composition contained in a reservoir.
  • This disinfectant composition is moved into a metering tank by means of a low-pressure pump, for example a pump with a pressure of less than 5 bars with a flow rate of 0.1 L/min.
  • a piston ejects the disinfectant composition contained in the metering reservoir as far as nozzles arranged in the vehicle to be disinfected.
  • the nozzles disperse a predetermined quantity of the disinfectant composition in order to obtain the desired disinfecting effect.
  • This type of existing system is however not specifically suitable for combating the COVID 19 pandemic and the dispersion of the disinfectant composition at the level of the nozzles presents a risk of formation of droplets on the supports and/or surfaces on which the disinfectant composition is dispersed, again requiring a long drying time, typically of the order of several hours.
  • the nozzles are subject to a crystallization effect of the disinfectant composition, for example for buses stored in an environment subject to freezing.
  • the technical problem of the invention and therefore of finding a disinfection system making it possible to limit the spread of pathogens, in particular of viruses, such as the COVID 19 virus or one of its variants, and requiring a limited waiting after the distribution of the disinfectant composition.
  • the invention proposes to diffuse the disinfectant composition in the form of a misting cloud, that is to say by nebulizing the disinfectant composition.
  • disinfectant composition a composition exhibiting a biocidal effect, that is to say a virucidal and/or bactericidal and/or fungicidal and/or yeasticidal effect.
  • the nozzles and the pump correspond to high-pressure elements whose pressure and flow rate are precisely determined so that it is no longer necessary to use a metering tank to meter the quantity of disinfectant composition to be dispersed. .
  • a disinfectant composition corresponding to an aqueous composition, preferably an aqueous solution, and comprising at least one surfactant representing between 0.1 and 1% by total mass of the composition and at least one alkanolamine representing between 0, 1% and 1% by total mass of the composition, comprising at least one quaternary ammonium comprising at least one alkyl chain, advantageously an alkyl chain greater than or equal to CIO, is effective in exhibiting the biocidal, advantageously virucidal, effect sought.
  • a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 liters per minute ( L/min); and nozzles making it possible to nebulize, by direct or indirect spraying, a flow rate comprised between 10 and 50 mL/min with a pressure comprised between 50 and 80 bars.
  • the invention relates to an automatic disinfection system comprising mechanical means associated with a disinfectant composition, the mechanical means comprising: a reservoir capable of containing said disinfectant composition; at least one pump, one inlet of which is connected to said reservoir; and a set of nozzles connected to at least one outlet of said at least one pump so that said at least one pump allows distribution of said disinfectant composition by means of the nozzles.
  • the invention is characterized in that: said at least one pump corresponds to a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 L/min; the nozzles correspond to high-pressure nozzles making it possible to nebulise, by direct or indirect spraying, a flow rate of between 10 and 50 mL/min with a pressure of between 50 and 80 bars; and said disinfectant composition corresponds to an aqueous composition comprising at least one cationic surfactant representing between 0.1 and 1% by total weight of the composition; said at least one cationic surfactant being a quaternary ammonium comprising at least one alkyl chain, advantageously an alkyl chain greater than or equal to CIO; and at least one alkanolamine representing between 0.1% and 1% by total mass of the composition.
  • said at least one pump corresponds to a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7
  • the at least one cationic surfactant is a quaternary ammonium comprising a C10-C20 alkyl chain, more particularly a C12-C16 alkyl chain.
  • the quaternary ammonium comprises a benzyl, preferably a dialkylbenzyl.
  • the dialkyl comprises at least one methyl, preferably the dialkyl is a dimethyl.
  • the quaternary ammonium comprises at least one counterion corresponding to a halide, preferably a chloride.
  • the at least one cationic surfactant is the compound corresponding to CAS number 68424-85-1 and called alkyldimethylbenzylammonium chloride or benzalkonium chloride.
  • G alkanolamine is 2-aminoethanol.
  • the composition of the invention also comprises an anti-limestone compound and/or a perfume.
  • An aqueous composition is a composition composed mainly of water.
  • an aqueous composition is a composition comprising at least 80% by total weight of the composition of water, advantageously 85%, 90%, 95%, 96%, 97% or even 99% of water. , so that the composition has a viscosity close to that of water.
  • the aqueous composition according to the invention is in the form of a solution, an emulsion or a dispersion, advantageously a solution.
  • the composition according to the invention also comprises at least one compound compatible with the other components of the composition.
  • a compound can be selected from the following list: a preservative, a sequestrant, a texturizer, a wax, a gelling agent, an abrasive, a colorant, an acidity corrector, a base, a polymer, a resin, an anti - foam, a solvent, a stabilizer, a thickener and an enzyme, for example a lipase or a protease.
  • the alkanolamine according to the invention has in particular a particular corrosion inhibitor property.
  • This compound makes it possible to protect the pump and the nozzles from corrosion to ensure effective distribution of said disinfectant composition.
  • the possible addition of a perfume in the disinfectant composition makes it possible to improve the environment after the nebulization of said disinfectant composition.
  • nozzles also depends on the volume of the surface to be disinfected. For example, to disinfect a bus 12 meters long, it is possible to use twelve nozzles of 12.5 mL/min at a pressure of 70 bars so as to nebulize 0.3 L of the disinfectant composition in two minutes.
  • the high pressure applied at the nozzles limits the quantity of disinfectant composition that can remain at the nozzles after the pump has stopped, so that the system no longer presents a risk of crystallization.
  • the disinfection system may comprise a pressure limiter connected between said inlet and said at least one outlet. of said at least one pump.
  • two pumps can be connected in series, each pump delivering a pressure of less than 50 bars and a flow rate of less than 0.2 L/min, the combination of the two pumps allowing deliver a pressure between 50 and 80 bars with a flow rate between 0.2 and 0.7 L/min.
  • the reservoir can incorporate a low level sensor.
  • This nebulization makes it possible to significantly limit the drying time necessary since after 5 to 10 min of drying, it is possible to reintegrate a bus in which 0.3 L of the disinfectant composition has been nebulized.
  • the invention relates to a method for disinfection of an enclosed space by means of the system according to the first aspect of the invention; said method comprising the following steps: evacuation and closure of said enclosed space; activation of said at least one pump for a period of between 1 and 3 min; wait for a period of between 5 and 10 min; and opening and possible reuse of said enclosed space.
  • This embodiment makes it possible to obtain optimal disinfection of an enclosed space, such as a bus or a tram.
  • limited disinfection can be obtained with the following steps: evacuation and closure of said enclosed space; activation of said at least one pump for a period of between 10 and 40 seconds; wait for a period of between 1 and 5 min; and opening and possible reuse of said enclosed space.
  • FIG 1 illustrates a schematic representation of a disinfection system according to one embodiment of the invention.
  • the disinfection system 10 comprises nozzles 14 intended to nebulize a disinfectant composition 12 in an enclosed space, for example in a bus, a tram, a train, an office or a passage hall.
  • the nozzles 14 are arranged in the space to be disinfected while the other elements of the disinfection system 10 are preferably integrated into a storage space 19, such as a chest or a false ceiling.
  • the disinfection system 10 incorporates a reservoir 11 containing the disinfectant composition 12.
  • This reservoir 11 is instrumented by a level sensor 16 making it possible to transmit low level information to a supervisory device 18.
  • the supervision unit 18 may correspond to an electronic card incorporating a microcontroller or a microprocessor and communication means capable of contacting an administrator when the low level is detected.
  • the supervisory device 18 also controls a pump 13 supplied by the tank 11.
  • the pump 13 is selected to be able to produce a flow rate and a fixed pressure for several voltage levels, such as the levels 12 volts, 24 volts, 220 volt and 380 volt.
  • the pumps 13 are often capable of operating at 220 volts or at 380 volts.
  • This pump 13 is directly connected to the nozzles 14 so that, when the pump 13 is activated, the disinfectant composition 12 is pumped from the tank 11 to be nebulized by the nozzles 14.
  • the pump 13 and the nozzles 14 correspond to high-pressure elements capable of delivering a pressure of between 50 and 80 bars.
  • the pump 13 has a flow rate of between 0.2 and 0.7
  • the number of nozzles and the technical characteristics of the nozzles depend on the volume to be disinfected. For example, to disinfect a 12 m long bus, it may be desired to nebulize 0.3 L/min. To do this, it is possible to use 12 nozzles 14 with a flow rate of 12.5 mL/min with a pressure of 70 bars, while the pump 13 can correspond to a high-pressure pump of 70 bars making it possible to supply a flow rate of 0.5 L/min. According to another example, for a tramway, it is possible to use 8 nozzles 14 making it possible to nebulize 0.64 L/min of disinfectant composition 12 in two minutes, each nozzle 14 having a flow rate of 40 mL/min under a pressure of 70 bar.
  • the disinfectant composition 12 comprises at least one cationic surfactant representing between 0.1 and 1% by total mass of the composition and at least one alkanolamine representing between 0.1 % and 1% by total mass of the composition.
  • the cationic surfactant represents between 0.4% and 0.6% by total mass of the disinfectant composition 12 and the alkanolamine represents between 0.4% and 0.6% by total mass of the disinfectant composition 12.
  • the invention makes it possible to provide an effective automatic disinfection system for destroying a large number of pathogens including viruses, in particular the virus causing COVID 19, namely SARS-CoV-2 or one of its variants. , with a limited drying time.
  • the invention can be used massively and more often than existing disinfection systems.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to an automatic disinfection system (10) having: a reservoir (11) suitable for containing an aqueous disinfecting composition (12) comprising between 0.1 and 1%, by total weight of the composition, of at least one cationic surfactant and between 0.1 and 1%, by total weight of the composition, of at least one alkanolamine; at least one high-pressure pump (13), of which an inlet is connected to the reservoir (11); and a set of high-pressure nozzles (14) connected to at least one outlet of the at least one pump (13).

Description

DESCRIPTION DESCRIPTION
TITRE : SYSTEME DE DESINFECTION AUTOMATIQUE ET PROCEDE DE DESINFECTION ASSOCIE. DOMAINE TECHNIQUE TITLE: AUTOMATIC DISINFECTION SYSTEM AND ASSOCIATED DISINFECTION METHOD. TECHNICAL AREA
La présente invention se rapporte au domaine de la désinfection automatique et elle vise un système de désinfection ainsi que le procédé de désinfection associé. The present invention relates to the field of automatic disinfection and it relates to a disinfection system as well as the associated disinfection method.
L’invention se révèle particulièrement efficace pour lutter contre la pandémie de Coronavirus SARS-CoV-2 ou de l’un de ses variants, appelé la COVID 19, en diffusant une composition désinfectante biocide, notamment virucide, adaptée pour limiter le risque de transmission de pathogènes, par exemple un virus, entre plusieurs personnes circulant dans un espace. The invention is particularly effective in combating the Coronavirus SARS-CoV-2 pandemic or one of its variants, called COVID 19, by distributing a biocidal, in particular virucidal, disinfectant composition suitable for limiting the risk of transmission of pathogens, for example a virus, between several people circulating in a space.
Ainsi, la présente invention trouve des applications dans de multiples domaines, notamment pour désinfecter un espace clos accueillant un grand flux de personnes tel qu’un bus, un train, un tramway, un hall ou encore un bureau. Thus, the present invention finds applications in multiple fields, in particular for disinfecting an enclosed space receiving a large flow of people such as a bus, a train, a tram, a hall or even an office.
ART ANTERIEUR PRIOR ART
Depuis le début de la pandémie de COVID 19, il existe un besoin important de limiter la transmission du virus à l’origine de cette pandémie ou de l’un de ses variants, notamment dans les espaces destinés à accueillir un grand nombre de personnes. Pour limiter cette transmission, il est recommandé de désinfecter régulièrement l'ensemble des surfaces sur lesquelles le virus peut rester actif. Since the beginning of the COVID 19 pandemic, there has been a significant need to limit the transmission of the virus at the origin of this pandemic or one of its variants, in particular in spaces intended to accommodate a large number of people. To limit this transmission, it is recommended to regularly disinfect all surfaces on which the virus can remain active.
Au sens de l’invention, par « variant » on entend un virus ayant subi une ou plusieurs mutations au cours de sa réplication. Within the meaning of the invention, by “variant” is meant a virus having undergone one or more mutations during its replication.
Pour ce faire, il est connu de procéder à une désinfection manuelle des différents supports sur lesquels un virus peut être transmis. Par exemple, pour un bus de transport, il est connu de pulvériser manuellement une composition désinfectante sur les sièges et les barres du bus après l’utilisation du bus. Il est ensuite nécessaire de laisser sécher cette composition désinfectante, par exemple pendant une durée de quatre heures. To do this, it is known to carry out manual disinfection of the various media on which a virus can be transmitted. For example, for a transport bus, it is known to manually spray a disinfectant composition on the seats and bars of the bus after using the bus. It is then necessary to allow this disinfectant composition to dry, for example for a period of four hours.
Ainsi, la désinfection manuelle ne peut économiquement être réalisée qu'au dépôt du bus et après la tournée de celui-ci car la durée de quatre heures entre deux désinfections limite le nombre de fois où cette désinfection peut être réalisée par jour. Thus, manual disinfection can only economically be carried out at the bus drop-off and after the tour of the latter because the duration of four hours between two disinfection operations limits the number of times this disinfection can be carried out per day.
Outre cette désinfection manuelle, il est également connu de réaliser une désinfection automatique des espaces clos au moyen d'un produit de désinfection pouvant être pulvérisé automatiquement sur les surfaces à désinfecter. Pour ce faire, il est connu un système de désinfection automatique décrit dans le document EP 2353 902. In addition to this manual disinfection, it is also known to carry out automatic disinfection of enclosed spaces by means of a disinfection product which can be sprayed automatically on the surfaces to be disinfected. To do this, an automatic disinfection system described in document EP 2353 902 is known.
Ce système de désinfection utilise une composition désinfectante contenue dans un réservoir. Cette composition désinfectante est déplacée dans un réservoir de dosage au moyen d’une pompe basse-pression, par exemple une pompe d’une pression inférieure à 5 bars avec un débit de 0,1 L/min. Lorsque le réservoir de dosage est rempli, un piston éjecte la composition désinfectante contenue dans le réservoir de dosage jusqu'à des buses disposées dans le véhicule à désinfecter. Ainsi, les buses dispersent une quantité prédéterminée de la composition désinfectante afin d'obtenir l'effet de désinfection recherché. This disinfection system uses a disinfectant composition contained in a reservoir. This disinfectant composition is moved into a metering tank by means of a low-pressure pump, for example a pump with a pressure of less than 5 bars with a flow rate of 0.1 L/min. When the metering reservoir is filled, a piston ejects the disinfectant composition contained in the metering reservoir as far as nozzles arranged in the vehicle to be disinfected. Thus, the nozzles disperse a predetermined quantity of the disinfectant composition in order to obtain the desired disinfecting effect.
Ce type de système existant n’est cependant pas spécifiquement adapté pour lutter contre la pandémie de COVID 19 et la dispersion de la composition désinfectante au niveau des buses présente un risque de formation de gouttelettes sur les supports et/ou surfaces sur lesquels la composition désinfectante est dispersée nécessitant encore un temps de séchage important, typiquement de l’ordre de plusieurs heures. De plus, les buses sont sujettes à un effet de cristallisation de la composition désinfectante, par exemple pour des bus entreposés dans un environnement sujet au gel. This type of existing system is however not specifically suitable for combating the COVID 19 pandemic and the dispersion of the disinfectant composition at the level of the nozzles presents a risk of formation of droplets on the supports and/or surfaces on which the disinfectant composition is dispersed, again requiring a long drying time, typically of the order of several hours. In addition, the nozzles are subject to a crystallization effect of the disinfectant composition, for example for buses stored in an environment subject to freezing.
Il est également connu du document AU 2020 100751 d’effectuer une brumisation d’une substance pour désinfecter un espace clos. Cependant, ce document ne décrit pas comment brumiser une substance efficace pour lutter contre la COVID 19. It is also known from document AU 2020 100751 to mist a substance to disinfect an enclosed space. However, this document does not describe how to fog an effective substance to fight against COVID 19.
Le problème technique de l'invention et donc de trouver un système de désinfection permettant de limiter la propagation de pathogènes, en particulier de virus, tels que le virus de la COVID 19 ou l’un de ses variants, et nécessitant un temps d'attente limité après la diffusion de la composition désinfectante. The technical problem of the invention and therefore of finding a disinfection system making it possible to limit the spread of pathogens, in particular of viruses, such as the COVID 19 virus or one of its variants, and requiring a limited waiting after the distribution of the disinfectant composition.
EXPOSE DE L’INVENTION DISCLOSURE OF THE INVENTION
Pour répondre à ce problème technique, l'invention propose de diffuser la composition désinfectante sous forme d'un nuage de brumisation, c’est-à-dire en nébulisant la composition désinfectante. To respond to this technical problem, the invention proposes to diffuse the disinfectant composition in the form of a misting cloud, that is to say by nebulizing the disinfectant composition.
Au sens de l’invention, par « composition désinfectante » on entend une composition présentant un effet biocide, c’est-à-dire un effet virucide et/ou bactéricide et/ou fongicide et/ou levuricide. Pour ce faire, les buses et la pompe correspondent à éléments haute -pression dont la pression et le débit sont précisément déterminés si bien qu'il n'est plus nécessaire d'utiliser un réservoir de dosage pour doser la quantité de composition désinfectante à disperser. Within the meaning of the invention, by “disinfectant composition” is meant a composition exhibiting a biocidal effect, that is to say a virucidal and/or bactericidal and/or fungicidal and/or yeasticidal effect. To do this, the nozzles and the pump correspond to high-pressure elements whose pressure and flow rate are precisely determined so that it is no longer necessary to use a metering tank to meter the quantity of disinfectant composition to be dispersed. .
L’utilisation de ces éléments haute-pression permet de nébuliser la composition désinfectante au lieu de simplement la pulvériser, si bien que les projections de la composition désinfectante sont plus fines et qu’elles sèchent plus vite sur les supports. The use of these high-pressure elements makes it possible to nebulize the disinfectant composition instead of simply spraying it, so that the projections of the disinfectant composition are finer and they dry faster on the supports.
Pour ce faire, il a cependant été nécessaire de rechercher et de sélectionner une composition désinfectante qui soit capable de supporter cette brumisation à haute pression tout en présentant un effet biocide, avantageusement virucide, notamment pour lutter contre la COVID 19, c’est-à-dire pour éliminer partiellement ou totalement le virus SARS-CoV- 2 ou l’un de ses variants. Les caractéristiques de pression de la pompe et des buses donc été déterminées concomitamment avec la recherche de l'effet biocide, avantageusement virucide, de la composition désinfectante. Il a été découvert qu'une composition désinfectant correspondant à une composition aqueuse, de préférence une solution aqueuse, et comprenant au moins un tensioactif représentant entre 0,1 et 1% en masse totale de la composition et au moins un alkanolamine représentant entre 0,1% et 1% en masse totale de la composition, comportant au moins un ammonium quaternaire comprenant au moins une chaîne alkyl, avantageusement une chaîne alkyl supérieure ou égale à CIO, est efficace pour présenter l'effet biocide, avantageusement virucide, recherché. En outre, en associant ces composés, il est possible d'obtenir une nébulisation efficace de la composition biocide avec une pompe haute-pression apte à délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 litre par minute (L/min) ; et des buses permettant de nébuliser, en pulvérisation directe ou indirecte, un débit compris entre 10 et 50 mL/min avec une pression comprise entre 50 et 80 bars. To do this, however, it was necessary to research and select a disinfectant composition which is capable of withstanding this high-pressure misting while exhibiting a biocidal effect, advantageously virucidal, in particular for combating COVID 19, i.e. say to partially or totally eliminate the SARS-CoV-2 virus or one of its variants. The pressure characteristics of the pump and of the nozzles have therefore been determined concomitantly with the search for the biocidal, advantageously virucidal, effect of the disinfectant composition. It has been discovered that a disinfectant composition corresponding to an aqueous composition, preferably an aqueous solution, and comprising at least one surfactant representing between 0.1 and 1% by total mass of the composition and at least one alkanolamine representing between 0, 1% and 1% by total mass of the composition, comprising at least one quaternary ammonium comprising at least one alkyl chain, advantageously an alkyl chain greater than or equal to CIO, is effective in exhibiting the biocidal, advantageously virucidal, effect sought. In addition, by combining these compounds, it is possible to obtain effective nebulization of the biocidal composition with a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 liters per minute ( L/min); and nozzles making it possible to nebulize, by direct or indirect spraying, a flow rate comprised between 10 and 50 mL/min with a pressure comprised between 50 and 80 bars.
A cet effet, selon un premier aspect, l’invention concerne un système de désinfection automatique comportant des moyens mécaniques associés à une composition désinfectante, les moyens mécaniques comprenant : un réservoir apte à contenir ladite composition désinfectante ; au moins une pompe dont une entrée est connectée sur ledit réservoir ; et un ensemble de buses connectées sur au moins une sortie de ladite au moins une pompe de sorte que ladite au moins une pompe permette une diffusion de ladite composition désinfectante au moyen des buses. L’invention se caractérise en ce que : ladite au moins une pompe correspond à une pompe haute-pression apte à délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 L/min ; les buses correspondent à des buses haute-pression permettant de nébuliser, en pulvérisation directe ou indirecte, un débit compris entre 10 et 50 mL/min avec une pression comprise entre 50 et 80 bars ; et ladite composition désinfectante correspond à une composition aqueuse comprenant au moins un tensioactif cationique représentant entre 0,1 et 1% en masse totale de la composition ; ledit au moins un tensioactif cationique étant un ammonium quaternaire comprenant au moins une chaîne alkyl, avantageusement une chaîne alkyl supérieure ou égale à CIO ; et au moins un alkanolamine représentant entre 0,1% et 1% en masse totale de la composition. To this end, according to a first aspect, the invention relates to an automatic disinfection system comprising mechanical means associated with a disinfectant composition, the mechanical means comprising: a reservoir capable of containing said disinfectant composition; at least one pump, one inlet of which is connected to said reservoir; and a set of nozzles connected to at least one outlet of said at least one pump so that said at least one pump allows distribution of said disinfectant composition by means of the nozzles. The invention is characterized in that: said at least one pump corresponds to a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 L/min; the nozzles correspond to high-pressure nozzles making it possible to nebulise, by direct or indirect spraying, a flow rate of between 10 and 50 mL/min with a pressure of between 50 and 80 bars; and said disinfectant composition corresponds to an aqueous composition comprising at least one cationic surfactant representing between 0.1 and 1% by total weight of the composition; said at least one cationic surfactant being a quaternary ammonium comprising at least one alkyl chain, advantageously an alkyl chain greater than or equal to CIO; and at least one alkanolamine representing between 0.1% and 1% by total mass of the composition.
Selon un mode de réalisation particulier, le au moins un tensioactif cationique est un ammonium quaternaire comprenant une chaîne alkyl en C10-C20, plus particulièrement une chaîne alkyl en Cl 2-C 16. According to a particular embodiment, the at least one cationic surfactant is a quaternary ammonium comprising a C10-C20 alkyl chain, more particularly a C12-C16 alkyl chain.
Avantageusement, l’ammonium quaternaire comprend un benzyl, de préférence un dialkylbenzyl. Advantageously, the quaternary ammonium comprises a benzyl, preferably a dialkylbenzyl.
Avantageusement, le dialkyl comprend au moins un méthyl, de préférence le dialkyl est un diméthyl. Avantageusement, l’ammonium quaternaire comprend au moins un contre-ion correspondant à un halogénure, de préférence un chlorure. Advantageously, the dialkyl comprises at least one methyl, preferably the dialkyl is a dimethyl. Advantageously, the quaternary ammonium comprises at least one counterion corresponding to a halide, preferably a chloride.
Selon un mode de réalisation préféré, le au moins un tensioactif cationique est le composé correspondant au numéro CAS 68424-85-1 et dénommé chlorures d’alkyldiméthylbenzylammonium ou chlorure de benzalkonium. Selon un autre mode de réalisation particulier, G alkanolamine est le 2-aminoéthanol.According to a preferred embodiment, the at least one cationic surfactant is the compound corresponding to CAS number 68424-85-1 and called alkyldimethylbenzylammonium chloride or benzalkonium chloride. According to another particular embodiment, G alkanolamine is 2-aminoethanol.
Selon un mode de réalisation particulier, la composition de l’invention comprend en outre un composé anticalcaire et/ou un parfum. According to a particular embodiment, the composition of the invention also comprises an anti-limestone compound and/or a perfume.
Une composition aqueuse est une composition composée majoritairement d’eau. Au sens de l’invention, une composition aqueuse est une composition comprenant au moins 80% en masse totale de la composition d’eau, avantageusement 85%, 90%, 95%, 96%, 97% ou encore 99% d’eau, si bien que la composition présente une viscosité proche de celle de l’eau. Selon un mode de réalisation particulier, la composition aqueuse selon l’invention se présente sous la forme d’une solution, d’une émulsion ou d’une dispersion, avantageusement d’une solution. An aqueous composition is a composition composed mainly of water. Within the meaning of the invention, an aqueous composition is a composition comprising at least 80% by total weight of the composition of water, advantageously 85%, 90%, 95%, 96%, 97% or even 99% of water. , so that the composition has a viscosity close to that of water. According to one particular embodiment, the aqueous composition according to the invention is in the form of a solution, an emulsion or a dispersion, advantageously a solution.
Selon un mode de réalisation particulier, la composition selon l’invention comprend en outre au moins un composé compatible avec les autres composants de la composition. Un tel composé peut être sélectionné dans la liste suivante : un conservateur, un séquestrant, un texturant, une cire, un gélifiant, un abrasif, un colorant, un correcteur d’acidité, une base, un polymère, une résine, un agent anti-mousse, un solvant, un agent de stabilisation, un épaississant et une enzyme, par exemple une lipase ou une protéase. According to a particular embodiment, the composition according to the invention also comprises at least one compound compatible with the other components of the composition. Such a compound can be selected from the following list: a preservative, a sequestrant, a texturizer, a wax, a gelling agent, an abrasive, a colorant, an acidity corrector, a base, a polymer, a resin, an anti - foam, a solvent, a stabilizer, a thickener and an enzyme, for example a lipase or a protease.
L’alkanolamine selon l’invention présente notamment une propriété particulière d’inhibiteur de corrosion. Ce composé permet de protéger la pompe et les buses de la corrosion pour assurer une diffusion efficace de ladite composition désinfectante. En outre, l’adjonction éventuelle d’un parfum dans la composition désinfectante permet d’améliorer l’environnement après la nébulisation de ladite composition désinfectante. The alkanolamine according to the invention has in particular a particular corrosion inhibitor property. This compound makes it possible to protect the pump and the nozzles from corrosion to ensure effective distribution of said disinfectant composition. In addition, the possible addition of a perfume in the disinfectant composition makes it possible to improve the environment after the nebulization of said disinfectant composition.
La sélection des buses dépend également du volume de la surface à désinfecter. Par exemple, pour désinfecter un bus de 12 mètres de long, il est possible d’utiliser douze buses de 12,5 mL/min à une pression de 70 bars de sorte à nébuliser 0,3 L de la composition désinfectante en deux minutes. The selection of nozzles also depends on the volume of the surface to be disinfected. For example, to disinfect a bus 12 meters long, it is possible to use twelve nozzles of 12.5 mL/min at a pressure of 70 bars so as to nebulize 0.3 L of the disinfectant composition in two minutes.
Pour un autre exemple, pour un tramway, il est possible d’utiliser 8 buses de 40 mL/min à une pression de 70 bars de sorte à nébuliser 0,64 L de la composition désinfectante en deux minutes. For another example, for a tram, it is possible to use 8 nozzles of 40 mL/min at a pressure of 70 bars so as to nebulize 0.64 L of the disinfectant composition in two minutes.
En outre, la haute-pression appliquée au niveau des buses limite la quantité de composition désinfectante pouvant rester au niveau des buses après l’arrêt de la pompe si bien que le système ne présente plus de risque de cristallisation. In addition, the high pressure applied at the nozzles limits the quantity of disinfectant composition that can remain at the nozzles after the pump has stopped, so that the system no longer presents a risk of crystallization.
Pour éviter que la pression ne dépasse une valeur seuil au-delà de laquelle la composition désinfectante pourrait perdre une partie de ces propriétés biocides, notamment virucides, le système de désinfection peut comporter un limiteur de pression connecté entre ladite entrée et ladite au moins une sortie de ladite au moins une pompe. To prevent the pressure from exceeding a threshold value beyond which the disinfectant composition could lose some of these biocidal, in particular virucidal, properties, the disinfection system may comprise a pressure limiter connected between said inlet and said at least one outlet. of said at least one pump.
En outre, pour réduire les contraintes de fonctionnement sur la pompe, deux pompes peuvent être montées en série, chaque pompe permettant de délivrer une pression inférieure à 50 bars et un débit inférieur à 0.2 L/min, l’association des deux pompes permettant de délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 L/min. Par ailleurs, pour détecter un besoin de remplissage du réservoir contenant la composition désinfectante, le réservoir peut intégrer un capteur de niveau bas. In addition, to reduce operating constraints on the pump, two pumps can be connected in series, each pump delivering a pressure of less than 50 bars and a flow rate of less than 0.2 L/min, the combination of the two pumps allowing deliver a pressure between 50 and 80 bars with a flow rate between 0.2 and 0.7 L/min. Furthermore, to detect a need to fill the reservoir containing the disinfectant composition, the reservoir can incorporate a low level sensor.
En sélectionnant la pompe, les buses et la composition désinfectante, il est ainsi possible d’obtenir une nébulisation d’une composition désinfectante présentant un effet biocide, en particulier virucide, notamment pour lutter contre la COVID 19, c’est-à-dire pour éliminer partiellement ou totalement le virus SARS-CoV-2 ou de l’un de ses variants. By selecting the pump, the nozzles and the disinfectant composition, it is thus possible to obtain nebulization of a disinfectant composition having a biocidal, in particular virucidal, effect, in particular for combating COVID 19, that is to say to partially or totally eliminate the SARS-CoV-2 virus or one of its variants.
Cette nébulisation permet de limiter la durée de séchage nécessaire de manière importante puisqu’ après 5 à 10 min de séchage, il est possible de réintégrer un bus dans lequel 0,3 L de la composition désinfectante ont été nébulisés. This nebulization makes it possible to significantly limit the drying time necessary since after 5 to 10 min of drying, it is possible to reintegrate a bus in which 0.3 L of the disinfectant composition has been nebulized.
Ainsi, selon un second aspect, l’invention concerne un procédé de désinfection d’un espace clos au moyen du système selon le premier aspect de l’invention ; ledit procédé comportant les étapes suivantes : évacuation et fermeture dudit espace clos ; activation de ladite au moins une pompe pendant une durée comprise entre 1 et 3 min ; attendre une durée comprise entre 5 et 10 min ; et ouverture et réutilisation possible dudit espace clos. Thus, according to a second aspect, the invention relates to a method for disinfection of an enclosed space by means of the system according to the first aspect of the invention; said method comprising the following steps: evacuation and closure of said enclosed space; activation of said at least one pump for a period of between 1 and 3 min; wait for a period of between 5 and 10 min; and opening and possible reuse of said enclosed space.
Ce mode de réalisation permet d’obtenir une désinfection optimale d’un espace clos, tel qu’un bus ou un tramway. This embodiment makes it possible to obtain optimal disinfection of an enclosed space, such as a bus or a tram.
Outre cette désinfection optimale, il est possible de procéder à des désinfections limitées. Par exemple, une désinfection limitée peut être obtenue avec les étapes suivantes : évacuation et fermeture dudit espace clos ; activation de ladite au moins une pompe pendant une durée comprise entre 10 et 40 secondes ; attendre une durée comprise entre 1 et 5 min ; et ouverture et réutilisation possible dudit espace clos. In addition to this optimal disinfection, it is possible to carry out limited disinfection. For example, limited disinfection can be obtained with the following steps: evacuation and closure of said enclosed space; activation of said at least one pump for a period of between 10 and 40 seconds; wait for a period of between 1 and 5 min; and opening and possible reuse of said enclosed space.
DESCRIPTION SOMMAIRE DES FIGURES BRIEF DESCRIPTION OF FIGURES
La manière de réaliser l’invention ainsi que les avantages qui en découlent, ressortiront bien du mode de réalisation qui suit, donné à titre indicatif mais non limitatif, à l’appui de la figure 1 dans laquelle : The manner of carrying out the invention as well as the advantages which result from it, will clearly emerge from the embodiment which follows, given by way of indication but not limitation, in support of figure 1 in which:
[Fig 1] la figure 1 illustre une représentation schématique d’un système de désinfection selon un mode de réalisation de l’invention. MANIERE DE DECRIRE L’INVENTION [Fig 1] Figure 1 illustrates a schematic representation of a disinfection system according to one embodiment of the invention. HOW TO DESCRIBE THE INVENTION
Tel que représenté à la figure 1, le système de désinfection 10 comporte des buses 14 destinées à nébuliser une composition désinfectante 12 dans un espace clos, par exemple dans un bus, un tramway, un train, un bureau ou hall de passage. Les buses 14 sont disposées dans l'espace à désinfecter alors que les autres éléments du système de désinfection 10 sont préférentiellement intégrés dans un espace de rangement 19, tel qu'un coffre ou un faux plafond. As represented in FIG. 1, the disinfection system 10 comprises nozzles 14 intended to nebulize a disinfectant composition 12 in an enclosed space, for example in a bus, a tram, a train, an office or a passage hall. The nozzles 14 are arranged in the space to be disinfected while the other elements of the disinfection system 10 are preferably integrated into a storage space 19, such as a chest or a false ceiling.
Dans cet espace de rangement 19, le système de désinfection 10 intègre un réservoir 11 contenant la composition désinfectante 12. Ce réservoir 11 est instrumenté par un capteur de niveau 16 permettant de transmettre une information de niveau bas à un organe de supervision 18. L’organe de supervision 18 peut correspondre à une carte électronique intégrant un microcontrôleur ou un microprocesseur et des moyens de communication aptes à contacter un administrateur lorsque le niveau bas est détecté. In this storage space 19, the disinfection system 10 incorporates a reservoir 11 containing the disinfectant composition 12. This reservoir 11 is instrumented by a level sensor 16 making it possible to transmit low level information to a supervisory device 18. The supervision unit 18 may correspond to an electronic card incorporating a microcontroller or a microprocessor and communication means capable of contacting an administrator when the low level is detected.
L'organe de supervision 18 commande également une pompe 13 alimentée par le réservoir 11. De préférence, la pompe 13 est sélectionnée pour pouvoir produire un débit et une pression fixe pour plusieurs niveaux de tension, tels que les niveaux 12 volts, 24 volts, 220 volts et 380 volts. En effet, les pompes 13 sont souvent capables de fonctionner en 220 volts ou en 380 volts. En utilisant une pompe 13 capable de fonctionner à 12 volts ou 24 volts, il est plus simple d’intégrer cette pompe 13 dans un bus car la pompe 13 peut être alimentée par le réseau électrique du bus. The supervisory device 18 also controls a pump 13 supplied by the tank 11. Preferably, the pump 13 is selected to be able to produce a flow rate and a fixed pressure for several voltage levels, such as the levels 12 volts, 24 volts, 220 volt and 380 volt. Indeed, the pumps 13 are often capable of operating at 220 volts or at 380 volts. By using a pump 13 capable of operating at 12 volts or 24 volts, it is easier to integrate this pump 13 into a bus because the pump 13 can be powered by the electrical network of the bus.
Cette pompe 13 est directement connectée aux buses 14 de sorte que, lorsque la pompe 13 est activée, la composition désinfectante 12 est pompée depuis le réservoir 11 pour être nébulisée par les buses 14. Pour ce faire, la pompe 13 et les buses 14 correspondent à des éléments haute-pression aptes à délivrer une pression comprise entre 50 et 80 bars. Selon l'invention, la pompe 13 présente un débit compris entre 0.2 et 0.7This pump 13 is directly connected to the nozzles 14 so that, when the pump 13 is activated, the disinfectant composition 12 is pumped from the tank 11 to be nebulized by the nozzles 14. To do this, the pump 13 and the nozzles 14 correspond to high-pressure elements capable of delivering a pressure of between 50 and 80 bars. According to the invention, the pump 13 has a flow rate of between 0.2 and 0.7
L/min. Pour ce faire, il est possible d'utiliser une seule pompe haute-pression ou plusieurs pompes dont l'association permet d'atteindre la pression et le débit recherché. Par exemple, il est possible d'utiliser deux pompes en parallèle, chaque pompe permettant de délivrer une pression inférieure à 50 bars et un débit inférieur à 0.2 L/min. L'association des deux pompes permettant alors de délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 L/min. En outre, entre une entrée et une sortie de la pompe 13, un limitateur de débit peut être connecté pour s'assurer que le débit fournit en sortie de la pompe 13 ne dépasse pas une valeur seuil, par exemple 80 bars. L/min. To do this, it is possible to use a single high-pressure pump or several pumps, the combination of which makes it possible to reach the desired pressure and flow rate. For example, it is possible to use two pumps in parallel, each pump delivering a pressure of less than 50 bars and a flow rate of less than 0.2 L/min. The combination of the two pumps then makes it possible to deliver a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 L/min. Furthermore, between an inlet and an outlet of the pump 13, a flow limiter can be connected to ensure that the flow supplied at the outlet of the pump 13 does not exceed a threshold value, for example 80 bars.
Le nombre de buses et les caractéristiques techniques des buses dépendent du volume à désinfecter. Par exemple, pour désinfecter un bus de 12 m de long, il peut être recherché de nébuliser 0.3 L/min. Pour ce faire, il est possible d'utiliser 12 buses 14 d'un débit de 12.5 mL/min avec une pression de 70 bars alors que la pompe 13 peut correspondre à une pompe haute-pression de 70 bars permettant de fournir un débit de 0.5 L/min. Selon un autre exemple, pour un tramway, il est possible d’utiliser 8 buses 14 permettant de nébuliser 0,64 L/min de composition désinfectante 12 en deux minutes, chaque buse 14 présentant un débit de 40 mL/min sous une pression de 70 bars. The number of nozzles and the technical characteristics of the nozzles depend on the volume to be disinfected. For example, to disinfect a 12 m long bus, it may be desired to nebulize 0.3 L/min. To do this, it is possible to use 12 nozzles 14 with a flow rate of 12.5 mL/min with a pressure of 70 bars, while the pump 13 can correspond to a high-pressure pump of 70 bars making it possible to supply a flow rate of 0.5 L/min. According to another example, for a tramway, it is possible to use 8 nozzles 14 making it possible to nebulize 0.64 L/min of disinfectant composition 12 in two minutes, each nozzle 14 having a flow rate of 40 mL/min under a pressure of 70 bar.
Ces éléments techniques permettent ainsi de mettre en œuvre plusieurs modes de désinfection en fonction du taux de désinfection recherché. Par exemple, pour obtenir désinfection optimale, il est possible d'évacuer et de fermer un espace clos puis d'activer la pompe 13 pendant une durée comprise entre une et trois minutes suite à nébulisation obtenue par l'activation de la pompe 13. Ensuite, une durée d'attente comprise entre une et cinq minutes peut être suffisante pour pouvoir réintégrer l’espace clos sans risque puisque la nébulisation de la composition désinfectante 12 permet un séchage extrêmement court. These technical elements thus make it possible to implement several disinfection modes according to the desired disinfection rate. For example, to obtain optimal disinfection, it is possible to evacuate and close a closed space then to activate the pump 13 for a period of between one and three minutes following the nebulization obtained by the activation of the pump 13. Then , a waiting time of between one and five minutes may be sufficient to be able to reenter the enclosed space without risk since the nebulization of the disinfectant composition 12 allows extremely short drying.
De la même manière, il est possible d'obtenir une désinfection moins efficace mais avec un temps d'attente beaucoup plus court en fermant l'espace clos et en activant la pompe 13 pendant une durée comprise entre 10 et 40 secondes. Après une attente comprise entre une et cinq minutes, il est possible de réintégrer l'espace clos et, ainsi, d'effectuer des opérations de désinfection plus souvent. Typiquement, il est possible d'effectuer une désinfection optimale au niveau de chaque dépôt de bus après la tournée de celui-ci et d'effectuer des désinfections plus courtes après un temps d'utilisation prédéterminée, par exemple lorsque le bus arrive au terminus avant de repartir pour effectuer une nouvelle ligne. In the same way, it is possible to obtain a less effective disinfection but with a much shorter waiting time by closing the enclosed space and activating the pump 13 for a period of between 10 and 40 seconds. After a wait of between one and five minutes, it is possible to re-enter the enclosed space and, thus, to carry out disinfection operations more often. Typically, it is possible to carry out optimal disinfection at the level of each bus depot after the tour of the latter and to carry out shorter disinfection after a predetermined time of use, for example when the bus arrives at the terminus before to set off again to make a new line.
Pour obtenir les propriétés virucides et la capacité de nébulisation de la composition désinfectante 12, la composition désinfectante 12 comprend au moins un tensioactif cationique représentant entre 0,1 et 1% en masse totale de la composition et au moins un alkanolamine représentant entre 0,1% et 1% en masse totale de la composition. De préférence, le tensioactif cationique représente entre 0,4% et 0,6% en masse totale de la composition désinfectante 12 et l’alkanolamine représente entre 0,4% et 0,6% en masse totale de la composition désinfectante 12. To obtain the virucidal properties and the nebulization capacity of the disinfectant composition 12, the disinfectant composition 12 comprises at least one cationic surfactant representing between 0.1 and 1% by total mass of the composition and at least one alkanolamine representing between 0.1 % and 1% by total mass of the composition. Preferably, the cationic surfactant represents between 0.4% and 0.6% by total mass of the disinfectant composition 12 and the alkanolamine represents between 0.4% and 0.6% by total mass of the disinfectant composition 12.
L’invention permet de fournir un système de désinfection automatique efficace pour détruire un grand nombre de pathogènes dont les virus, notamment le virus à l’origine de la COVID 19 à savoir le SARS-CoV-2 ou de l’un de ses variants, avec un temps de séchage limité. Ainsi, l’invention peut être utilisée massivement et plus souvent que les systèmes de désinfection existants. The invention makes it possible to provide an effective automatic disinfection system for destroying a large number of pathogens including viruses, in particular the virus causing COVID 19, namely SARS-CoV-2 or one of its variants. , with a limited drying time. Thus, the invention can be used massively and more often than existing disinfection systems.

Claims

REVENDICATIONS
1. Système de désinfection (10) automatique comportant des moyens mécaniques associés aune composition désinfectante (12), les moyens mécaniques comprenant : un réservoir (11) apte à contenir ladite composition désinfectante (12) ; au moins une pompe (13) dont une entrée est connectée sur ledit réservoir (11) ; et un ensemble de buses (14) connectées sur au moins une sortie de ladite au moins une pompe (13) de sorte que ladite au moins une pompe (13) permette une diffusion de ladite composition désinfectante (12) au moyen des buses (14) ; caractérisé en ce que : ladite au moins une pompe (13) correspond à une pompe haute-pression apte à délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 L/min ; les buses (14) correspondent également à des buses haute-pression permettant de nébuliser, en pulvérisation directe ou indirecte, un débit compris entre 10 et 50 mL/min avec une pression comprise entre 50 et 80 bars ; et ladite composition désinfectante (12) correspond à une composition aqueuse comprenant : au moins un tensioactif cationique représentant entre 0,1% et 1% en masse totale de la composition ; ledit au moins un tensioactif cationique étant un ammonium quaternaire comprenant au moins une chaîne alkyl, avantageusement une chaîne alkyl supérieure ou égale à CIO ; et au moins un alkanolamine représentant entre 0,1% et 1% en masse totale de la composition. 1. Automatic disinfection system (10) comprising mechanical means associated with a disinfectant composition (12), the mechanical means comprising: a reservoir (11) adapted to contain said disinfectant composition (12); at least one pump (13), one inlet of which is connected to said reservoir (11); and a set of nozzles (14) connected to at least one outlet of said at least one pump (13) so that said at least one pump (13) allows distribution of said disinfectant composition (12) by means of the nozzles (14 ); characterized in that: said at least one pump (13) corresponds to a high-pressure pump capable of delivering a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 L/min; the nozzles (14) also correspond to high-pressure nozzles making it possible to nebulize, by direct or indirect spraying, a flow rate of between 10 and 50 mL/min with a pressure of between 50 and 80 bars; and said disinfectant composition (12) corresponds to an aqueous composition comprising: at least one cationic surfactant representing between 0.1% and 1% by total mass of the composition; said at least one cationic surfactant being a quaternary ammonium comprising at least one alkyl chain, advantageously an alkyl chain greater than or equal to CIO; and at least one alkanolamine representing between 0.1% and 1% by total mass of the composition.
2. Système de désinfection selon la revendication 1, dans lequel ledit système de désinfection (10) comporte un limiteur de pression (15) connecté entre ladite entrée et ladite au moins une sortie de ladite au moins une pompe (13). 2. Disinfection system according to claim 1, wherein said disinfection system (10) comprises a pressure limiter (15) connected between said inlet and said at least one outlet of said at least one pump (13).
3. Système de désinfection selon l’une des revendications 1 à 2, dans lequel ledit système de désinfection (10) comporte deux pompes (13) montées en série, chaque pompe (13) permettant de délivrer une pression inférieure à 50 bars et un débit inférieur à 0.2 L/min, l’association des deux pompes (13) permettant de délivrer une pression comprise entre 50 et 80 bars avec un débit compris entre 0.2 et 0.7 L/min. 3. Disinfection system according to one of claims 1 to 2, wherein said disinfection system (10) comprises two pumps (13) connected in series, each pump (13) making it possible to deliver a pressure of less than 50 bars and a flow rate less than 0.2 L/min, the combination of the two pumps (13) making it possible to deliver a pressure of between 50 and 80 bars with a flow rate of between 0.2 and 0.7 L/min.
4. Système de désinfection selon l’une des revendications 1 à 3, dans lequel ledit réservoir (11) intègre un capteur de niveau bas (16). 4. Disinfection system according to one of claims 1 to 3, wherein said tank (11) incorporates a low level sensor (16).
5. Système de désinfection selon l’une des revendications 1 à 4, dans lequel le moins un tensioactif cationique est le composé correspondant au numéro CAS 68424-85-1. 5. Disinfection system according to one of claims 1 to 4, wherein the least one cationic surfactant is the compound corresponding to CAS number 68424-85-1.
6. Système de désinfection selon l’une des revendications 1 à 5, dans lequel le au moins un alkanolamine est le 2-aminoéthanol. 6. Disinfection system according to one of claims 1 to 5, wherein the at least one alkanolamine is 2-aminoethanol.
7. Système de désinfection selon l’une des revendications 1 à 6, dans lequel ledit au moins un tensioactif cationique représente entre 0,4% et 0,6% en masse totale de la composition désinfectante (12) et/ou le au moins un alkanolamine représente entre 0,4% et 0,6% en masse totale de la composition désinfectante (12). 7. Disinfection system according to one of claims 1 to 6, wherein said at least one cationic surfactant represents between 0.4% and 0.6% by total mass of the disinfectant composition (12) and / or the at least an alkanolamine represents between 0.4% and 0.6% by total mass of the disinfectant composition (12).
8. Système de désinfection selon l’une des revendications 1 à 7, dans lequel ladite composition désinfectante (12) comprend en outre un composé anticalcaire et/ou un parfum. 8. Disinfection system according to one of claims 1 to 7, wherein said disinfectant composition (12) further comprises an anti-limescale compound and / or a perfume.
9. Système de désinfection selon l’une des revendications 1 à 8, dans lequel ladite composition désinfectante (12) est une solution, une émulsion ou une suspension, avantageusement une solution. 9. Disinfection system according to one of claims 1 to 8, wherein said disinfectant composition (12) is a solution, an emulsion or a suspension, advantageously a solution.
10. Procédé de désinfection d’un espace clos au moyen du système selon l’une des revendications 1 à 5 ; ledit procédé comportant les étapes suivantes : évacuation et fermeture dudit espace clos ; activation de ladite au moins une pompe (13) pendant une durée comprise entre 1 et 3 min ; attendre une durée comprise entre 5 et 10 min ; et ouverture et réutilisation possible dudit espace clos. 10. A method of disinfecting an enclosed space by means of the system according to one of claims 1 to 5; said method comprising the following steps: evacuation and closure of said enclosed space; activation of said at least one pump (13) for a period of between 1 and 3 min; wait for a period of between 5 and 10 min; and opening and possible reuse of said enclosed space.
11. Procédé de désinfection d’un espace clos selon la revendication 10 ; ledit procédé comportant les étapes suivantes : évacuation et fermeture dudit espace clos ; activation de ladite au moins une pompe (13) pendant une durée comprise entre 10 et 40 secondes ; attendre une durée comprise entre 1 et 5 min ; et ouverture et réutilisation possible dudit espace clos. 11. A method of disinfecting an enclosed space according to claim 10; said method comprising the following steps: evacuation and closure of said enclosed space; activation of said at least one pump (13) for a period of between 10 and 40 seconds; wait for a period of between 1 and 5 min; and opening and possible reuse of said enclosed space.
PCT/FR2022/050575 2021-03-29 2022-03-28 Automatic disinfection system and associated disinfection method WO2022208013A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2103162A FR3121046B1 (en) 2021-03-29 2021-03-29 Automatic disinfection system and associated disinfection process.
FRFR2103162 2021-03-29

Publications (1)

Publication Number Publication Date
WO2022208013A1 true WO2022208013A1 (en) 2022-10-06

Family

ID=76920854

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2022/050575 WO2022208013A1 (en) 2021-03-29 2022-03-28 Automatic disinfection system and associated disinfection method

Country Status (2)

Country Link
FR (1) FR3121046B1 (en)
WO (1) WO2022208013A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860721A1 (en) * 2003-10-10 2005-04-15 Gloster Sante Europ Guaranteed diffusion treatment procedure to combat contamination in buildings such as hospitals, uses verifiable product in single-use container
EP2353902A1 (en) 2010-01-14 2011-08-10 Clim Assistance System for disinfecting or deodorising an automobile provided with such a system
WO2014138207A1 (en) * 2013-03-07 2014-09-12 Yehuda Ivri Pressure multiplying aerosol pump
AU2020100751A4 (en) 2020-05-13 2020-06-18 Microsafe Care Australia Pty. Ltd. Automated disinfection machine for indoor misting of disinfectants
CN112402680A (en) * 2020-12-24 2021-02-26 中国烟草总公司郑州烟草研究院 External hanging sterilization disinfection and deinsectization integrated treatment device and method for combined air conditioning unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860721A1 (en) * 2003-10-10 2005-04-15 Gloster Sante Europ Guaranteed diffusion treatment procedure to combat contamination in buildings such as hospitals, uses verifiable product in single-use container
EP2353902A1 (en) 2010-01-14 2011-08-10 Clim Assistance System for disinfecting or deodorising an automobile provided with such a system
WO2014138207A1 (en) * 2013-03-07 2014-09-12 Yehuda Ivri Pressure multiplying aerosol pump
AU2020100751A4 (en) 2020-05-13 2020-06-18 Microsafe Care Australia Pty. Ltd. Automated disinfection machine for indoor misting of disinfectants
CN112402680A (en) * 2020-12-24 2021-02-26 中国烟草总公司郑州烟草研究院 External hanging sterilization disinfection and deinsectization integrated treatment device and method for combined air conditioning unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CAS , no. 68424-85-1

Also Published As

Publication number Publication date
FR3121046A1 (en) 2022-09-30
FR3121046B1 (en) 2024-05-17

Similar Documents

Publication Publication Date Title
FR2964577A1 (en) CONTROL SYSTEM FOR AGRICULTURAL SPRAY EQUIPMENT
EP2611289A1 (en) Spraying assembly, and sprayer equipped with at least one such assembly
MA33645B1 (en) Anthranilic diamide formulations to cover bud cells
WO1984000990A1 (en) Improved holder for cleaning and/or colorant products intended to be hooked from the edge of a wc bowl
WO2022208013A1 (en) Automatic disinfection system and associated disinfection method
CA2430902A1 (en) Device for diffusing a fluid into the atmosphere with secured removable reservoir
EP1214948B1 (en) Antibacterial composition for controlling airborne bacteria and corresponding procedure
FR2906108A1 (en) AUTOMATIC INTERMITTENT PROGRAM DRINKING SYSTEM
FR2545685A1 (en) Device for incorporating products into an irrigation system
FR3062646A1 (en) INSTALLATION FOR TREATING WATER FOR PHYTOSANITARY USE OR DRINKING
EP2001807A2 (en) Product for treating a toilet flush cistern and bowl
BE1025949B1 (en) Surface disinfection device by air
FR2915902A1 (en) DEVICE FOR DESINCTISATION.
WO2007029183A3 (en) Treatment of water
FR2957773A1 (en) METHOD AND SYSTEM FOR AUTOMATIC DISINFECTION OF A SANITARY
US20150258587A1 (en) System and method for deep cleaning water ionizers
CH718366A2 (en) System for disinfecting a vehicle and method for disinfecting such a vehicle.
FR2600896A1 (en) Method and installation allowing automatic disinfecting of a room and all the equipment which it contains
FR2972357A1 (en) Method for disinfection of e.g. space by air, involves spraying heated disinfectant solution to obtain disinfectant solution concentration at constant level in air, where solution comprises peroxygen acid and/or hydrogen peroxide
CA2807247A1 (en) Disinfecting composition
EP2776762A1 (en) Device for lifting condensates, implementing a bactericidal metal
EP2042035B1 (en) Device for administering active principles to animals fed in rooms from distributors
WO2020065168A1 (en) Nebulizer system for a motor vehicle
EP1394121A1 (en) Process for the treatment of contaminated liquid effluents and apparatus for carrying out this process
WO2018189464A1 (en) Household electrical appliance including means for heating water and a device for releasing an anti-scale agent into the water

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22718251

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22718251

Country of ref document: EP

Kind code of ref document: A1