WO2008128255A1 - Airconditioning treatment system - Google Patents

Airconditioning treatment system Download PDF

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Publication number
WO2008128255A1
WO2008128255A1 PCT/ZA2007/000033 ZA2007000033W WO2008128255A1 WO 2008128255 A1 WO2008128255 A1 WO 2008128255A1 ZA 2007000033 W ZA2007000033 W ZA 2007000033W WO 2008128255 A1 WO2008128255 A1 WO 2008128255A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
preparation
ducts
reservoir
release
Prior art date
Application number
PCT/ZA2007/000033
Other languages
French (fr)
Inventor
John Sheath
Original Assignee
John Sheath
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 John Sheath filed Critical John Sheath
Publication of WO2008128255A1 publication Critical patent/WO2008128255A1/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
    • 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
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • F24F2221/225—Cleaning ducts or apparatus using a liquid

Definitions

  • This invention relates to air conditioning units and in particular to the treatment of the air in premises being served by the air conditioner.
  • Air conditioned premises and primarily those in which the air is circulated, are also subject to the ingress of odours.
  • a device for an air-conditioning unit includes a reservoir for a treatment preparation and means to release the preparation at a predetermined rate, the preparation including a suitable anti-microbial agent that is active when dispersed into the air and which may also be deposited on to surfaces of the ducting in the air-conditioner, and/or the evaporator coil.
  • the preparation may also include a perfume or deodourising agent in an amount sufficient to combat malodours.
  • the reservoir is connected to a source of air under pressure for ejection of the preparation through conduits to the air-conditioning ducts.
  • Spray means is included in the ducts adapted to release the preparation into the air in the premises.
  • the device may include means for micronisation of the preparation so that a fine spray is obtained.
  • the preparation may be in the form of an aerosol, with means to release the aerosol at a predetermined rate/s.
  • the rate of release of the preparation will depend on the volume of air to be treated and other factors.
  • Means for automatic timed release may be provided - for example a timer in electrical connection with an air compressor.
  • a valve such as a solenoid valve, may be provided.
  • an air-conditioning system including a fan cooling blower 10 in connection with conventional ducting 12 with vents 14.
  • a device is provided to add a treatment solution or suspension or the like to the cold air.
  • the device includes a reservoir 20 for the treatment solution having a connection 22 to the ducting.
  • An air compressor 24 is provided that is driven by a transformer 26 through a non-return solenoid valve 28.
  • the air under pressure causes the solution to be expelled from the reservoir into the ducting and may have a piston-and-cylinder arrangement 30. It will be appreciated that other arrangements are possible and all fall within the ambit of the present invention.
  • the expelled solution is ejected through a spray head 32 so that a micronised treatment agent is forced into the zone being air conditioned through the nozzles 34.
  • the activation of the compressor may be controlled by a timer 36.
  • the treatment solution may contain microbiocidal substances as well as deodorants.
  • a suitable disinfecting agent is the product sold under the trade mark ACOT 500, which has shown excellent results in SABS tests.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

A device is provided for maintaining the ducts and evaporator coil in microbial-free condition, the device comprising a reservoir for an antimicrobial preparation, a source of air under pressure for applying to the reservoir to release a predetermined volume of the preparation along the ducts of the air conditioner and past the evaporator coil, and thence into the atmosphere of the premises.

Description

AIRCONDITIONING TREATMENTSYSTEM
TECHNICAL FIELD OF THE INVENTION
This invention relates to air conditioning units and in particular to the treatment of the air in premises being served by the air conditioner.
BACKGROUND ART
It has been estimated that some 2 billion dollars a year are lost due to illnesses derived from airborne diseases - in particular in air-conditioned premises. These diseases are caused by bacteria, fungi or viruses that are often carried on human or around skin follicles by which there can be up to 95% present in air-conditioned premises.
Air conditioned premises, and primarily those in which the air is circulated, are also subject to the ingress of odours.
It is an object of the invention to provide a device which effects a disinfectant action in respect of the air in an air-conditioning premises as well as an optional de- odourising effect.
DISCLOSURE OF THE INVENTION
According to the invention a device for an air-conditioning unit includes a reservoir for a treatment preparation and means to release the preparation at a predetermined rate, the preparation including a suitable anti-microbial agent that is active when dispersed into the air and which may also be deposited on to surfaces of the ducting in the air-conditioner, and/or the evaporator coil. The preparation may also include a perfume or deodourising agent in an amount sufficient to combat malodours.
In a preferred form of the invention the reservoir is connected to a source of air under pressure for ejection of the preparation through conduits to the air-conditioning ducts. Spray means is included in the ducts adapted to release the preparation into the air in the premises.
The device may include means for micronisation of the preparation so that a fine spray is obtained.
It will be understood that the preparation may be in the form of an aerosol, with means to release the aerosol at a predetermined rate/s.
The rate of release of the preparation will depend on the volume of air to be treated and other factors.
Means for automatic timed release may be provided - for example a timer in electrical connection with an air compressor. A valve, such as a solenoid valve, may be provided.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention is described below with reference to the accompanying sketch.
BEST MODE FOR CARRYING OUR THE INVENTION
In the sketch an air-conditioning system is illustrated including a fan cooling blower 10 in connection with conventional ducting 12 with vents 14.
A device is provided to add a treatment solution or suspension or the like to the cold air. The device includes a reservoir 20 for the treatment solution having a connection 22 to the ducting. An air compressor 24 is provided that is driven by a transformer 26 through a non-return solenoid valve 28.
The air under pressure causes the solution to be expelled from the reservoir into the ducting and may have a piston-and-cylinder arrangement 30. It will be appreciated that other arrangements are possible and all fall within the ambit of the present invention.
The expelled solution is ejected through a spray head 32 so that a micronised treatment agent is forced into the zone being air conditioned through the nozzles 34.
The activation of the compressor may be controlled by a timer 36.
As mentioned above the treatment solution may contain microbiocidal substances as well as deodorants. A suitable disinfecting agent is the product sold under the trade mark ACOT 500, which has shown excellent results in SABS tests.

Claims

CLAIMS:
1. A device for maintaining ducts and evaporator of an air-conditioning unit in microbial-free condition characterised in that
a reservoir for an antimicrobial treatment preparation is provided in the unit
means is provided to release the preparation at a pre-determined rate
into the unit for deposition on the surface of the ducting and the evaporator coil and
into the atmosphere from the unit.
2. The device according to claim 1 characterised in that the reservoir is connected to a source of air under pressure for ejection of the preparation through conduits to the air- conditioning ducts and evaporator coil.
3. The device according to claim 2 characterised in that spray means is provided in the ducts to release the preparation into the atmosphere of the premises.
4. The device according to any of the above claims characterised in that means for automatic timed release of the preparation is provided.
PCT/ZA2007/000033 2007-04-17 2007-05-30 Airconditioning treatment system WO2008128255A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2007/03639 2007-04-17
ZA200703639 2007-04-17

Publications (1)

Publication Number Publication Date
WO2008128255A1 true WO2008128255A1 (en) 2008-10-23

Family

ID=38713496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2007/000033 WO2008128255A1 (en) 2007-04-17 2007-05-30 Airconditioning treatment system

Country Status (2)

Country Link
WO (1) WO2008128255A1 (en)
ZA (1) ZA200704494B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014092336A (en) * 2012-11-06 2014-05-19 Tokue:Kk Method for making indoor air comfortable, and air conditioning equipment
IT202100028973A1 (en) * 2021-11-16 2023-05-16 Ras Group Srl SANITIZATION SYSTEM FOR AERAULIC SYSTEMS

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531977A1 (en) * 1975-07-15 1977-01-27 Hans Wittemeier Aerosol generator with controllable output - for deodorising and sterilising liqs.
FR2505991A3 (en) * 1981-05-15 1982-11-19 Schuelke & Mayr Gmbh DOSING SYSTEM FOR TREATED AIR CONDITIONING SYSTEM
US4903583A (en) * 1989-06-16 1990-02-27 Frazier Reuben L Aerosol air and duct treatment apparatus for air conditioning and heating systems
US5078046A (en) * 1989-11-24 1992-01-07 Mascolo Dennis G Air treatment apparatus and method
US6379242B1 (en) * 2001-01-12 2002-04-30 Larry E. Wiseman, Sr. Automatic scent dispensing system
US20030192922A1 (en) * 2002-04-15 2003-10-16 Ceppaluni Michael J. Air flow scent enhancer
US20060104858A1 (en) * 2003-01-06 2006-05-18 Potember Richard S Hydroxyl free radical-induced decontamination of airborne spores, viruses and bacteria in a dynamic system
US7223166B1 (en) * 2003-01-10 2007-05-29 Wiseman Sr Larry E Automatic scent dispensing system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531977A1 (en) * 1975-07-15 1977-01-27 Hans Wittemeier Aerosol generator with controllable output - for deodorising and sterilising liqs.
FR2505991A3 (en) * 1981-05-15 1982-11-19 Schuelke & Mayr Gmbh DOSING SYSTEM FOR TREATED AIR CONDITIONING SYSTEM
US4903583A (en) * 1989-06-16 1990-02-27 Frazier Reuben L Aerosol air and duct treatment apparatus for air conditioning and heating systems
US5078046A (en) * 1989-11-24 1992-01-07 Mascolo Dennis G Air treatment apparatus and method
US6379242B1 (en) * 2001-01-12 2002-04-30 Larry E. Wiseman, Sr. Automatic scent dispensing system
US20030192922A1 (en) * 2002-04-15 2003-10-16 Ceppaluni Michael J. Air flow scent enhancer
US20060104858A1 (en) * 2003-01-06 2006-05-18 Potember Richard S Hydroxyl free radical-induced decontamination of airborne spores, viruses and bacteria in a dynamic system
US7223166B1 (en) * 2003-01-10 2007-05-29 Wiseman Sr Larry E Automatic scent dispensing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014092336A (en) * 2012-11-06 2014-05-19 Tokue:Kk Method for making indoor air comfortable, and air conditioning equipment
IT202100028973A1 (en) * 2021-11-16 2023-05-16 Ras Group Srl SANITIZATION SYSTEM FOR AERAULIC SYSTEMS
WO2023089472A1 (en) * 2021-11-16 2023-05-25 Ras Group Srl Sanitisation system for hvac systems

Also Published As

Publication number Publication date
ZA200704494B (en) 2008-07-30

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