Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
  • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
  • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
  • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
  • B05B17/0615—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
• • 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
  • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
  • A61L2/08—Radiation
  • A61L2/10—Ultraviolet radiation
• • 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
  • A61L9/00—Disinfection, sterilisation or deodorisation of air
  • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
  • B60H3/00—Other air-treating devices
  • B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
  • B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F1/00—Treatment of water, waste water, or sewage
  • C02F1/30—Treatment of water, waste water, or sewage by irradiation
  • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
  • C02F1/325—Irradiation devices or lamp constructions
• • 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
  • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/10—Apparatus features
  • A61L2209/13—Dispensing or storing means for active compounds
  • A61L2209/134—Distributing means, e.g. baffles, valves, manifolds, nozzles
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/10—Apparatus features
  • A61L2209/16—Connections to a HVAC unit
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
  • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F2201/00—Apparatus for treatment of water, waste water or sewage
  • C02F2201/32—Details relating to UV-irradiation devices
  • C02F2201/322—Lamp arrangement
  • C02F2201/3222—Units using UV-light emitting diodes [LED]
• • 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
  • F24F2006/006—Air-humidification, e.g. cooling by humidification with water treatment

Definitions

• the subject of the invention is a nebulization system for a motor vehicle.
• a nebulization system comprises a liquid water tank and an acoustic wave emitting device configured so that the water from the tank forms a mist of water droplets.
• Such a nebulization system makes it possible to refresh an air flow in which the water mist is sprayed.
• the nebulization system because it constitutes an additional element of the vehicle it occupies, must be as compact as possible.
• the object of the invention is to provide a nebulization system without danger to the health of users of the motor vehicle while being compact.
• the invention relates to a nebulization system for a motor vehicle, comprising at least one reservoir for storing a liquid, a nebulization means comprising an acoustic wave emitting device configured so that said liquid forms a mist of droplets of said liquid, the mist being intended to enter a passenger compartment of the motor vehicle, a electroluminescent device configured to emit radiation in the ultraviolet spectrum, and a conduit for conveying the liquid to at least one inlet, a nebulization means comprising, the electroluminescent device being oriented so as to irradiate the liquid circulating in the conduit for conveying the liquid, when the nebulization system is operating.
• the bacteria which can proliferate in the liquid circulating in the nebulization system are effectively neutralized, without it being necessary to resort to a filter, the very shape of the support ensuring greater compactness of the system nebulization.
• the ultraviolet radiation penetrating into the liquid preferably water, the absorption coefficient of which is high, it diffuses essentially in the liquid, which reduces the risks of exposure for users of the motor vehicle.
• the ultraviolet spectrum includes wavelengths in the range between 200 nm and 290 nm.
• the system comprises a housing of the electroluminescent device provided with a liquid passage channel, the channel being integral with the liquid delivery conduit.
• the system comprises at least one baffle for guiding the liquid towards the housing.
• the duct for conveying the liquid comprises an upper wall and a bottom wall spaced apart from each other, the upper wall comprising at least one orifice for entering the liquid into the duct. liquid routing.
• the system comprises a sphere for confining the ultraviolet radiation emitted by the electroluminescent device.
• the system comprises a channel for passing the liquid through the sphere.
• the channel passes through the center of the sphere.
• the invention also relates to a ventilation, heating and / or air conditioning device for a motor vehicle, comprising a nebulization system as described above.
• FIG. 1 illustrates a schematic view of a partial longitudinal section of a nebulization system according to a first embodiment of the present invention.
• FIG. 2 illustrates a schematic view of a partial longitudinal section of a nebulization system according to a second embodiment of the present invention.
• FIG. 3 illustrates a partial longitudinal section of a nebulization system according to a third embodiment of the present invention.
• FIG. 4 illustrates a partial longitudinal section of the system of FIG. 3.
• the subject of the invention is a nebulization system for a motor vehicle, referenced 10 in Figures 1 to 3, also called nebulizer 10.
• the nebulizer 10 makes it possible to refresh an air flow intended for the passenger compartment of the motor vehicle, as will be described in detail.
• the nebulizer 10 is, for example, intended to be integrated into a central console arranged in the passenger compartment of the motor vehicle.
• the nebulizer 10 comprises a storage tank for a fluid, 12, preferably liquid water, detailed later, otherwise called tank.
• the nebulizer 10 preferably comprises a nebulization enclosure 14, illustrated in FIG. 3.
• the nebulization enclosure 14 is produced here in the form of an elongated hollow body extending along a longitudinal axis A.
• the longitudinal axis A is inclined relative to a vertical direction Z and relative to a horizontal direction X.
• the nebulization enclosure 14 comprises at least two parts arranged, one after the other in the direction of the longitudinal axis A, namely a chamber spray pipe 16 and a spray pipe 18, the spray pipe 18 opening into the spray chamber 16.
• the nebulizer 10 comprises a nebulization means produced here in the form of a nebulization nozzle 20 provided with a device for emitting acoustic waves transmitted in the liquid configured to so that the surface of the liquid issuing from the nozzle 20 generates a mist of droplets of the liquid, this mist being intended to penetrate into a passenger compartment of the motor vehicle.
• the longitudinal axis A also corresponds to the direction with which the jet J of water from which the mist is detached is ejected from the nebulization nozzle 20 into the nebulization chamber 16.
• the nozzle of nebulization 20 is disposed at least in part inside the nebulization enclosure 14.
• the nebulization nozzle 20 comprises a side wall delimiting an interior volume capable of containing the liquid to be nebulized.
• the inner cross section of this side wall has a gradual narrowing towards an outlet 24 for the liquid to form a concentrator of acoustic waves.
• a piezoelectric (ceramic) element 22 is disposed opposite an outlet 24 for the liquid.
• the piezoelectric element is able to emit acoustic waves in the liquid to be sprayed, which makes it possible to generate a mist of droplets of liquid when the nebulization nozzle 20 is filled by the latter and when the piezo element.
• electric emits acoustic waves of frequency and intensity appropriate.
• the piezoelectric element can emit ultrasound whose frequency will be between 1 MHz and 3 MHz, in particular between 1.7 MHz and 2.4 MHz.
• the diameter of the droplets contained in the fog is less than 10 ⁇ m.
• the nebulization nozzle 20 also comprises at least one inlet port E for the liquid to be nebulized which allows the introduction of the liquid to be nebulized into the internal volume of the nozzle, in fluid communication with the reservoir 12.
• the nebulization system 10 also comprises a conduit 26 for returning the liquid to the reservoir 12.
• the conduit 26 extends the nebulization chamber 20 by forming an almost 180 ° bend. The bent shape of the conduit 26 ensures improved compactness of the nebulization system 10.
• the nebulization system 10 may also include a water inlet channel 30 intended to receive a cartridge containing liquid, and thereby constituting an additional reservoir, advantageously removable, of the system 10, as illustrated in FIG. 3.
• the nebulizer 10 further comprises an air inlet duct 34 and at least one outlet duct of the mist 36 towards the vehicle interior, and a fan 38 forcing the air movement.
• the air enters the nebulization enclosure 14 at the level of the nebulization chamber 16 where the mixing between the air and the nebulized liquid occurs before leaving the system 10 via the mist outlet duct 36 where it circulates to the passenger compartment of the vehicle.
• the nebulizer 10 also comprises an electroluminescent device 40.
• the electroluminescent device 40 comprises a source of ultraviolet radiation, the emitted wavelengths of which are included in the ultraviolet spectrum C, between 200 nm and 300 nm and, preferably, between 200 nm and 280 nm.
• Ultraviolet C radiation makes it possible, in a known manner, to kill bacteria.
• the radiation source, denoted S, is visible in Figure 4.
• the electroluminescent device 40 consists of a photolysis reactor with light-emitting diode (s).
• the source of ultraviolet radiation, as well as an associated electronic circuit, are embedded in a resin 44 bordered by a seal.
• the electroluminescent device 40 comprises a base 50, preferably made of stainless steel, placed on the resin 44 ..
• the tank 12 comprises a portion 54, called the intermediate portion, arranged between the return duct 26 and the nebulization nozzle
• the intermediate portion 54 comprises a bottom wall 56, flat, and an upper wall 58 disposed above the bottom wall 56 to force the water to pass between the electroluminescent device 40 and the nebulization nozzle 20, as will be detailed with reference to each of the embodiments.
• the resin 44 and the base 50 are immersed in the tank 12, a water level in the tank being referenced N, as will also be detailed later.
• the cartridge containing liquid is secured to the inlet channel 30, and the water level N reaches the nebulization stack 18, part of the pipe 26 for returning the liquid to the reservoir 12 , and the intermediate portion 54.
• the intermediate portion 54 comprises a housing 60 of the electroluminescent device 40 provided with a channel 62 for the passage of water.
• the source of ultraviolet radiation embedded in the resin 44 is embedded in a part high 64 of the housing 60 of the electroluminescent device 40.
• the source of ultraviolet radiation is directed towards the channel 62 of the water passage so that the water flowing in the channel 62 of the water passage is irradiated during the crossing of an irradiation cone C.
• the housing 60 of the electroluminescent device 40 is placed on the bottom wall 56.
• the upper wall 58 extends from the housing 60 of the electroluminescent device 40 then around the nebulization nozzle 20 up to beyond the nozzle 20, which ensures the routing of the water from the channel 62 of the water passage to the inlet port E of the nozzle 20 while forcing the water to pass through the channel 62 for the water to pass before reaching the nozzle 20.
• this configuration forms a conduit 66 for conveying the water to the nozzle 20 which ensures that all the water contained in the nebulizer 10 is treated with ultraviolet radiation.
• the nebulizer 10 also comprises at least one baffle in the intermediate portion 54 of the tank 12.
• a single baffle 68 is illustrated, which ensures that the water moves in an S-shaped stream at the above the upper part 64 of the housing 60 of the electroluminescent device 40. This current makes it possible to effectively cool the electroluminescent device 40, and in particular the stainless steel base 50.
• the second embodiment will now be described in detail, illustrated in figure 2.
• the intermediate portion 54 comprises a housing 60 of the electroluminescent device 40 provided with a channel 62 for the passage of water.
• the housing 60 of the electroluminescent device 40 is integral with a connector 70 forming the transverse wall of the tank 12 between the return duct 26 for returning the liquid to the reservoir 12 and the bottom wall 56, arranged so that the electroluminescent device 40 is disposed substantially vertically in the tank 12.
• the water passage channel 62 ensures effective cooling of the electroluminescent device 40, and in particular of the stainless steel base 50.
• the upper wall 58 extends from the housing 60 of the electroluminescent device 40 then around the nebulization nozzle 20 and up to beyond the nebulization nozzle 20, a space between the bottom 56 and upper walls 58 forming a conduit 66 for conveying the water to the nebulization nozzle 20.
• the upper wall 58 is pierced with an orifice 72 which ensures the flow of water between the return pipe 26 for the return of the liquid in the reservoir 12 and the nebulization nozzle 20.
• the electroluminescent device 40 is oriented towards the conduit 66 for conveying the water so that the water circulating in the conduit 66 for conveying the water is irradiated when passing through a cone C d 'irradiation.
• conduit 66 for conveying the water ensures that all the water contained in the nebulizer 10 is treated with ultraviolet radiation.
• the intermediate portion 54 is provided with a sphere 74, preferably made of white Teflon (the UV reflection coefficient of which is 97%), provided with a channel 76 for the passage of the water passing through the center of the sphere 74.
• the sphere 74 ensures a convergence of the ultraviolet rays R towards the center of the sphere, thereby improving the irradiating power of the electroluminescent device 40, as illustrated in FIG. 4.
• the source of ultraviolet radiation embedded in the resin 44 is disposed on the sphere 74 and oriented towards the channel 62 for the passage of water so that the water circulating in the channel 76 is irradiated when passing through the sphere 74.
• the sphere 74 also makes it possible to improve the safety of the nebulizer by its confinement of the ultraviolet C rays.
• the cooling of the electroluminescent device 40 is optimized by its immersion in water.
• the upper wall 58 extends from the sphere 74 then around the nebulization nozzle 20 to beyond the nozzle 20, which ensures the flow of water from the channel 62 for passage of water to the inlet port E of the nozzle 20 while forcing the water to pass through the channel 62 before reaching the nozzle 20.
• this configuration forms a conduit 66 for conveying the water to the nozzle 20 which ensures that all the water contained in the nebulizer 10 is treated with ultraviolet radiation. Benefits provided
• the antibacterial treatment bacteria cannot proliferate in the nebulizer 10, which ensures that the nebulizer is always healthy, whether the nebulizer 10 is on or off.
• the device directly irradiates the liquid, the propagation of the ultraviolet radiation is limited to the nebulization system, thereby guaranteeing the safety of the users of the vehicle.
• the immersion of the device also ensures efficient cooling of the radiation source (s).
• the arrangement of the water supply line 66 also allows all water to be treated before it enters the nebulizer nozzle 20.

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• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Environmental & Geological Engineering (AREA)
• Mechanical Engineering (AREA)
• Organic Chemistry (AREA)
• Toxicology (AREA)
• Hydrology & Water Resources (AREA)
• Water Supply & Treatment (AREA)
• General Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Epidemiology (AREA)
• Veterinary Medicine (AREA)
• Public Health (AREA)
• Apparatus For Disinfection Or Sterilisation (AREA)
• Nozzles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=71094451

Family Applications (1)

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Family Cites Families (4)

• 2021
  • 2021-01-28 EP EP21706352.8A patent/EP4096945A1/de active Pending
  • 2021-01-28 CN CN202180011864.1A patent/CN115052769A/zh active Pending
  • 2021-01-28 WO PCT/FR2021/050156 patent/WO2021152261A1/fr unknown
  • 2021-01-28 US US17/796,083 patent/US20230080010A1/en active Pending

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