GB2469018A - Vapour Misting Apparatus - Google Patents

Vapour Misting Apparatus Download PDF

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Publication number
GB2469018A
GB2469018A GB0905278A GB0905278A GB2469018A GB 2469018 A GB2469018 A GB 2469018A GB 0905278 A GB0905278 A GB 0905278A GB 0905278 A GB0905278 A GB 0905278A GB 2469018 A GB2469018 A GB 2469018A
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GB
United Kingdom
Prior art keywords
liquid
vapour
nozzle
misting apparatus
compressed air
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
GB0905278A
Other versions
GB2469018B (en
GB0905278D0 (en
Inventor
Roger Kanaris
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.)
HYGIENICS BIOSECURITY Ltd
Original Assignee
HYGIENICS BIOSECURITY Ltd
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 HYGIENICS BIOSECURITY Ltd filed Critical HYGIENICS BIOSECURITY Ltd
Priority to GB0905278A priority Critical patent/GB2469018B/en
Publication of GB0905278D0 publication Critical patent/GB0905278D0/en
Publication of GB2469018A publication Critical patent/GB2469018A/en
Application granted granted Critical
Publication of GB2469018B publication Critical patent/GB2469018B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2491—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • 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
    • A61L2202/16—Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles
    • 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
    • A61L2202/20—Targets to be treated
    • A61L2202/25—Rooms in buildings, passenger compartments
    • 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
    • A61L2209/11—Apparatus for controlling air treatment
    • 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
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • A61L2209/211—Use of hydrogen peroxide, liquid and vaporous

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)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Vapour misting apparatus 1 comprises a source of compressed air 10, a nozzle 20 with first inlet port 21 connected to a source of compressed air 10, a second inlet port 22 connected to an atomizer 23 for a liquid 30, an outlet port 24, a pump 35 to deliver first liquid to the nozzle second inlet port 22, and a controller 40 to control the pump and so control the ratio of first liquid and compressed air to the nozzle. There may be a back pressure valve 36 located between the pump and the second inlet, and a non-return valve 12 between the source of compressed air and the first nozzle inlet. Two or more liquids 31-33 maybe provided in separate containers.

Description

Title: Vapour Misting Apparatus The present invention relates to a vapour misting apparatus.
Vapour misting machines are known, especially for applying disinfectant, such as hydrogen peroxide, to hospital rooms. Such machines pass a supply of compressed air through a nozzle into the ambient air. The nozzle includes a venturi which creates a siphonic effect which draws in a fixed amount disinfectant from the supply of disinfectant. The disinfectant atomises in the air passing through the nozzle and is delivered as a mist into the ambient air. The disinfectant eventually evaporates into the air, but this occurs somewhere in the region of 2 metres from the nozzle, beyond which there is a safe "dry zone" which is in the right condition to kill a wide range of micro organisms that cause infections including MRSA and Clostridium Difficile.
Because the correct conditions for killing such micro organisms does not exist until the dry zone is reached there is normally a limit on the minimum size of room that can be decontaminated as under a certain size the walls of the room will be too close and the mist being deposited on them will be wet and consequently the decontamination capability will be reduced. These known machines are not therefore suitable for decontaminating small rooms, and thus the range of room size they can clean is fixed at the lower end. Also the flow rate of disinfectant is controlled by the venturi/siphon so the amount of disinfectant which can be delivered in a given period of time is fixed for a given nozzle.
Another problem is that the time taken for some disinfectants to decompose and become "safe" can be long so that it may take some period of time for a room to be useable after decontamination.
The invention seeks to provide a misting apparatus which has improvements over the known machines and which have additional features.
According to the present invention there is provided a vapour misting apparatus comprising: a) a source of compressed air, b) a nozzle having a first inlet port connected to the source of compressed air, a second inlet port connected to an atomiser for liquid, and an outlet port to deliver compressed air and atomised liquid to ambient air, c) a source of a first liquid to be atomised and vaporised in ambient air, d) a pump to deliver first liquid to the nozzle second inlet port, and e) a controller to control the pump and so control the ratio of first liquid and compressed air to the nozzle, in use atomised first liquid is expelled from the nozzle in the compressed air to vaporise after is * reaches a distance from nozzle, and the controller being used to deliver controlled amounts of first liquid to the nozzle whereby to vary the distance from the nozzle the atomised first liquid becomes vaporised.
Preferably a back pressure valve is provided between the pump and the nozzle second inlet.
Preferably a non-return valve is provided between the source of compressed air and the nozzle first inlet.
Preferably a first container is provided to house said first liquid.
Preferably sources of two or more different liquids are provided. Each liquid may be provided in a separate container. Preferably a valve is provided to select and connect any one liquid source to the pump.
In one embodiment a first liquid is a disinfectant. The disinfectant may be a hydrogen peroxide disinfectant. A second liquid may be a neutraliser to neutralise the disinfectant. A third liquid may be residual anti-microbial treatment. A fourth liquid may be a fragrance generator.
The controller may be programmed with different memorised room settings so that as the apparatus is taken from room to room, a user need only enter a room identification code to the controller, and the controller will recall from memory the size of room and amount of liquid which needs to be dispensed from one or more sources.
Preferably a housing is provided to house the vapour misting apparatus.
An embodiment of the invention will now be described with reference to the accompanying drawing in which: Figure 1 shows a schematic circuit of an apparatus, and Figure 2 shows a side view of an apparatus.
Referring to the drawings there is shown a vapour misting apparatus 1.
Apparatus 1 has a source of compressed air provided by a compressor 10 which delivers, through a pressure regulator 11 and non-return valve 12, a supply of air at a fixed pressure through a first inlet port 21 of a nozzle 20. Non-return valve 12 prevents the flow of residual liquid from the nozzle back into the compressor.
Apparatus I has four tanks 30, 3 1,32,33. Tank 30 contains a disinfectant liquid, such a hydrogen peroxide and silver. Tank 31 contains a liquid to neutralise the disinfectant. Tank 32 contains a residual anti-microbial treatment liquid. Tank 33 contains a fragrance liquid.
Tanks 30,31,32,33 are connected to a 4 way selector valve 34 which can be used to select which tank and its liquid is connected to a delivery pump 35. Delivery pump delivers liquid from a selected tank through a back pressure valve 36 to a second inlet port 22 in Nozzle 20.
Second inlet port 20 is connected to an atomiser 23 for liquid. Nozzle 20 has an outlet port 24 to deliver compressed air and atomised liquid from a selected tank in very fine droplet form into the ambient air surrounding the equipment. Back pressure valve 36 eliminates the siphonic effect of the venturi created in nozzle 20.
A computer controller 40 is provided to control the pump 35 and so control the ratio of liquid from a selected tank and compressed air to the nozzle. Controller 40 can also be used to control selector valve 34.
In use atomised liquid is expelled from the nozzle 20 in the compressed air to vaporise after it reaches a distance from nozzle. The controller 40 is used to deliver controlled amounts of liquid to the nozzle whereby to vary the distance from the nozzle the atomised first liquid becomes vaporised and so vary the "dry zone" distance from the nozzle.
A housing 50 on wheels 51 and front leg 52 is provided to house the vapour misting apparatus.
A handle 53 is provided to wheel the housing from room to room.
It is envisaged that the apparatus 1 would be taken to a room to be cleansed with disinfectant from tank 30. The size of the room would be entered into the controller. The controller would calculate the amount of disinfectant which would need to be dispensed to decontaminate the room and the rate at which the pump 35 delivers disinfectant to the nozzle 20 to so control the distance of the "dry zone" from the nozzle 20.
After the desired amount of disinfectant has been emitted from nozzle 20 and a period of time has passed to allow decontamination to have taken place, controller 40 will then connect tank 31 to pump 35 using selector valve 34. Controller 40 optionally controls the amount of liquid from tank 31 needed to neutralise any residual disinfectant and to speed up the time it take for the disinfectant to reach the safe working level for room re-occupancy (1 part per million for Hydrogen Peroxide), so the room can be re-used more quickly than hitherto possible with known vapour misting machines. Controller 40 will then connect tank 32 to pump 35 using selector valve 34. Controller 40 then optionally delivers a controlled amount of liquid from tank 32 needed to apply residual anti-microbial treatment to the room based on room volume.
Controller 40 will then connect tank 33 to pump 35 using selector valve 34. Controller 40 then optionally delivers a controlled amount of liquid from tank 33 needed to apply a fragrance to the room. The apparatus will automatically pump compressed air only for a period of time between cycles to ensure that all liquid from the previous cycle has been expelled from the tube between the liquid pump 35 and the nozzle 20.
Red lights 60A,60B would light up when decontamination is taken place and entry to the room is restricted. Green lights 60C,60D would light up when it was safe to enter a room.
It is envisaged that the apparatus I would be completely automatic, allowing the operator to placethe apparatus in a room and then allow the controller to perform the desired tasks. The operator or controller could select whether all four liquids from tanks 30,31,32,33 are applied to the room, or whether just one, two, or three liquids.
Also the controller could be programmed with different memorised room settings so that as the apparatus is taken from room to room, the operator need only enter a room identification code (such as a room number), and the controller with recall from memory the size of room and amount of liquid which needs to be dispensed from one or more tanks for each room.
The invention may take a form different to that specifically described above. For example only one tank 30 could be provided, so that the apparatus need only deliver say disinfectant to a room.
Further modifications will be apparent to those skilled in the art without departing from the scope of the present invention.

Claims (15)

  1. CLAIMS1. A vapour misting apparatus comprising: a) a source of compressed air, b) a nozzle having a first inlet port connected to the source of compressed air, a second inlet port connected to an atomiser for liquid, and an outlet port to deliver compressed air and atomised liquid to ambient air, c) a source of a first liquid to be atomised and vaporised in ambient air, d) a pump to deliver first liquid to the nozzle second inlet port, and e) a controller to control the pump and so control the ratio of first liquid and compressed air to the nozzle, in use atomised first liquid is expelled from the nozzle in the compressed air to vaporise after is reaches a distance from nozzle, and the controller being used to deliver controlled amounts of first liquid to the nozzle whereby to vary the distance from the nozzle the atomised first liquid becomes vapôrised.
  2. 2. A vapour misting apparatus according to claim 1, wherein a back pressure valve is provided between the pump and the nozzle second inlet.
  3. 3. A vapour misting apparatus according to claim 1 or 2, wherein a non-return valve is provided between the source of compressed air and the nozzle first inlet.
  4. 4. A vapour misting apparatus according to any preceding claim, wherein a first container is provided to house said first liquid.
  5. 5. A vapour misting apparatus according to any preceding claim, wherein two or more different liquids are provided.
  6. 6. A vapour misting apparatus according to claim 5, wherein each liquid is provided in a separate container.
  7. 7. A vapour misting apparatus according to claim 5 or 6, wherein a valve is provided to select and connect any one liquid to the pump.
  8. 8. A vapour misting apparatus according to any preceding claim, wherein a first liquid is a disinfectant.
  9. 9. A vapour misting apparatus according to claim 8, wherein the disinfectant is hydrogen peroxide.
  10. 10. A vapour misting apparatus according to any preceding claim, wherein a second liquid is a neutraliser to neutralise the disinfectant.
  11. ii. A vapour misting apparatus according to any preceding claim, wherein a third liquid is residual anti-microbial treatment.
  12. 12. A vapour misting apparatus according to any preceding claim, wherein a fourth liquid may be a fragrance generator.
  13. 13. A vapour misting apparatus according to any preceding claim, wherein the controller may be programmed with different memorised room settings so that as the apparatus is taken from room to room, a user need only enter a room identification code to the controller, and the controller will recall from memory the size of room and amount of liquid which needs to be dispensed from one or more sources.
  14. 14. A vapour misting apparatus according to any preceding claim, wherein a housing is provided to house the vapour misting apparatus.
  15. 15. A vapour misting apparatus substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
GB0905278A 2009-03-27 2009-03-27 Vapour misting apparatus Expired - Fee Related GB2469018B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0905278A GB2469018B (en) 2009-03-27 2009-03-27 Vapour misting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0905278A GB2469018B (en) 2009-03-27 2009-03-27 Vapour misting apparatus

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GB0905278D0 GB0905278D0 (en) 2009-05-13
GB2469018A true GB2469018A (en) 2010-10-06
GB2469018B GB2469018B (en) 2014-03-12

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013003967A1 (en) * 2011-07-04 2013-01-10 Skan Ag Decontamination device for a containment and/or for treatment material that can be temporarily introduced therein
ITBO20130192A1 (en) * 2013-05-02 2014-11-03 99 Holding S A R L DIFFUSER DEVICE, SYSTEM AND METHOD FOR DISINFECTION OF ENVIRONMENTS AND SURFACES
WO2017205649A1 (en) * 2016-05-26 2017-11-30 Markesbery W Russell Methods and system for disinfection
WO2020019028A1 (en) * 2018-07-24 2020-01-30 Airandé Pty Limited Disinfection system
GB2598637A (en) * 2020-09-08 2022-03-09 Wananchi Ltd Apparatus for disinfectant of enclosed spaces
US11425911B2 (en) 2017-05-25 2022-08-30 Markesbery Blue Pearl LLC Method for disinfection of items and spaces

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089213A (en) * 1980-12-13 1982-06-23 Jagenberg Werke Ag Sterilizing packaging material, e.g. containers made from blanks
GB2395904A (en) * 2002-12-03 2004-06-09 Bosch Gmbh Robert Apparatus for volatilising a decontamination agent
EP2022509A1 (en) * 2007-08-07 2009-02-11 Alain Lange Device for the distribution of a disinfection product with automatic cleaning and associated distribution method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089213A (en) * 1980-12-13 1982-06-23 Jagenberg Werke Ag Sterilizing packaging material, e.g. containers made from blanks
GB2395904A (en) * 2002-12-03 2004-06-09 Bosch Gmbh Robert Apparatus for volatilising a decontamination agent
EP2022509A1 (en) * 2007-08-07 2009-02-11 Alain Lange Device for the distribution of a disinfection product with automatic cleaning and associated distribution method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013003967A1 (en) * 2011-07-04 2013-01-10 Skan Ag Decontamination device for a containment and/or for treatment material that can be temporarily introduced therein
CH705249A1 (en) * 2011-07-04 2013-01-15 Skan Ag An apparatus for decontamination of a containment and / or temporarily therein einbringbarem treated.
US9974876B2 (en) 2013-05-02 2018-05-22 99 Holding S.A.R.L. Method and device for disinfecting spaces and surfaces
WO2014177966A3 (en) * 2013-05-02 2015-03-19 99 Holding S.A.R.L. Method and device for disinfecting spaces and surfaces
ITBO20130192A1 (en) * 2013-05-02 2014-11-03 99 Holding S A R L DIFFUSER DEVICE, SYSTEM AND METHOD FOR DISINFECTION OF ENVIRONMENTS AND SURFACES
WO2017205649A1 (en) * 2016-05-26 2017-11-30 Markesbery W Russell Methods and system for disinfection
US9861102B2 (en) 2016-05-26 2018-01-09 Markesbery Blue Pearl LLC Methods for disinfection
US10603396B2 (en) 2016-05-26 2020-03-31 Markesbery Blue Pearl LLC Methods and system for disinfection
EP3957174A1 (en) * 2016-05-26 2022-02-23 Markesbery Blue Pearl LLC Methods for disinfection
US11425911B2 (en) 2017-05-25 2022-08-30 Markesbery Blue Pearl LLC Method for disinfection of items and spaces
WO2020019028A1 (en) * 2018-07-24 2020-01-30 Airandé Pty Limited Disinfection system
US20210299308A1 (en) * 2018-07-24 2021-09-30 Airandé Pty Limited Disinfection System
GB2598637A (en) * 2020-09-08 2022-03-09 Wananchi Ltd Apparatus for disinfectant of enclosed spaces
GB2598637B (en) * 2020-09-08 2024-06-05 Wananchi Ltd Apparatus for disinfectant of enclosed spaces

Also Published As

Publication number Publication date
GB2469018B (en) 2014-03-12
GB0905278D0 (en) 2009-05-13

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