WO1995013506A1 - Configuration de filtration pour refroidisseur d'air - Google Patents

Configuration de filtration pour refroidisseur d'air Download PDF

Info

Publication number
WO1995013506A1
WO1995013506A1 PCT/AU1994/000690 AU9400690W WO9513506A1 WO 1995013506 A1 WO1995013506 A1 WO 1995013506A1 AU 9400690 W AU9400690 W AU 9400690W WO 9513506 A1 WO9513506 A1 WO 9513506A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter pad
pad
wettable
filter
air
Prior art date
Application number
PCT/AU1994/000690
Other languages
English (en)
Inventor
James Robert Wilton
Original Assignee
F F Seeley Nominees Pty. 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 F F Seeley Nominees Pty. Ltd. filed Critical F F Seeley Nominees Pty. Ltd.
Priority to AU81345/94A priority Critical patent/AU8134594A/en
Publication of WO1995013506A1 publication Critical patent/WO1995013506A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F24F6/043—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with self-sucking action, e.g. wicks
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F24F8/125—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering using wet filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54—Free-cooling systems

Definitions

  • This invention relates to a filter pad arrangement which can be utilised in an evaporative cooler wherein a pump circulates water from a sump and passes it downwardly through a wettable filter pad and back into the sump, while air is passed through the wet filter pad in a cross-flow path.
  • coolers are in common use and are very popular because of their economy both in purchase and in running, and the fact that the wet filter pad with the water cascading through it absorbs a large number of undesirable airborne particles or vapours or gases, and is usually very pleasant to breathe. Further, in most instances such coolers are used with a large amount of fresh air, at times up to 100% fresh air, and problems associated with recirculation such as spread of microbiological organisms, can be largely averted.
  • Filter pads which are most commonly used at the time of preparing this application are either of woodwool or other lignocellulose based absorbent material, and the water is distributed over the upper edge of the absorbent pad from a water distributor so that it flows down evenly over the whole area of the absorbent pad. Evaporation of the water into the air lowers the air temperature, while increasing its humidity (latent heat).
  • the main object of the invention therefore is to provide a filter pad arrangement wherein quick and easy filter replacement may be achieved, because when this operation is difficult, it is often just not done.
  • wettable filter pad With another wettable filter pad with another will not necessarily deal with all the pollutants which are sometimes in the air. They include not only dust particles and particles of pollen, but also products of combustion such as carbon monoxide, carbon dioxide, compounds of sulphur and aldehydes; chemical vapours and overspray; chemical particulates such as sulphur; and objectionable odours. Even when the wettable filtering medium is associated with a downward flow of water, only some of those other pollutants can be removed. Other filtering media is required for the absorption of carbon monoxide, and some of the other pollutants identified above. Activated carbon is one material which is useful for adsorbing pollutants, most of which have a higher molecular weight than air.
  • a prefilter for an evaporative cooler wherein air is first filtered for removal of some of the pollutants identified above before being passed through the wet filter pad to be washed clean of some of the remaining pollutants.
  • the filter pads should be readily and quickly removed, and in an embodiment of the invention there is provided an aperture in a housing, through which the prefilter can be positioned by simply sliding into the housing, or withdrawn by simply sliding out of the housing.
  • wettable absorbent filter pad refers to a pad of absorbent material which, when wetted, will have the effect of both evaporating some of its water into the air passing through the pad, and also filtering the air from certain pollutants. Such filter pads as presently used are ineffective when dry.
  • a “dry filter pad” is a filter pad which is expected to operate effectively when dry but not when wet. These characteristics are the reverse of those of the wettable filter pad.
  • this invention relates to a filter pad arrangement in an evaporative air cooler of the type having a wettable filter pad which in use is wet by water distributed over its upper edge and flowing down into a sump, and wherein air is both filtered and cooled by passing through the wet filter pad, and the invention is characterised more specifically by having an aperture in a wall of the cooler housing, with guides extending inwardly so that a prefilter pad can be quickly and easily inserted and withdrawn, and in some embodiments a second aperture located downstream of the first said aperture, also having guides extending into the housing which enable a wettable filter pad to be readily inserted or withdrawn.
  • the prefilter should be located upstream of the wettable filter pad.
  • the wettable filter pad should also be capable of being inserted or withdrawn quickly and efficiently, preferably laterally from beneath the water distributor. While the prefilter pad should also be capable of being inserted or withdrawn laterally in some designs of cooler-housing, it is often more convenient through the upper wall of the housing, and near the rear wall, upstream of the wettable filter pad in respect to air flow.
  • the wettable filter pad is not readily withdrawn or inserted through an aperture in a housing wall.
  • Fig 1 illustrates a frontal view of a cooler made in accordance with the Australian Design Application No 1204/93 (Registration No 118765);
  • Fig 2 is a rear view of same showing the manner in which a filter pad assembly can be slide into place through a pad loading aperture in a side wall of a housing;
  • Fig 3 illustrates the housing when the woodwool pad is inserted but a prefilter is partially withdrawn
  • Fig 4 is a section taken on the plane 4-4-4 of Fig 3, but only of the rear panel and the two pads;
  • Fig 5 is a section through Fig 2 on the plane 5-5-5, and also drawn to the larger scale of Fig 4;
  • Fig 6 is a fragmentary section through the prefilter pad of Fig 5, drawn to a much larger scale.
  • an air cooler 10 is the type which is portable and contains a fan which draws air through a grid 11 in a rear wall and discharges it through a grid 12 in the front wall of a housing 13, the housing 13 also being defined by a base 14, side walls 15 and upper wall 16, the rear grid 11 and front grid 12 being respectively air inlet and air outlet openings.
  • Figs 4 and 5 show in full lines the relevant portion of the housing 13, showing the rear wall grid 11 and portion of the side walls 15. Other mouldings complete the remainder of the side walls 15 and the front grid 12.
  • the wettable filter pad 20 While it is not essential in all instances to have the wettable filter pad 20 withdrawable as shown in Fig 2, it is desirable that it should be readily withdrawable and replaceable.
  • the wettable filter pad 20 is shown to be insertable through a pad loading aperture 21 in one side wall 15 of a housing, and as shown in Fig 5, when loaded its upper edge lies close to and immediately below the discharge edge of a water spreader 22.
  • the base 14 constitutes a sump, and as shown diagrammatical ly in dashed lines in Fig 5, sump 23 contains a pump 24 which pumps water up to the water spreader 22 so that the water will flow evenly downwardly through the filter material of the wettable filter pad 20.
  • prefilter 26 There is also illustrated the prefilter 26. It is not essential that prefilter 26 should be inserted or withdrawn laterally, and it is usually more convenient that it should be inserted in a pad loading aperture 27 in the upper wall 16.
  • guides 28 which extend inwardly into the housing 13 from the pad loading apertures, and facilitate withdrawal and insertion of the relevant pad assemblies, and location of them when they are inserted.
  • the main cleansing of air is by the water flowing through the wettable filter pad 20, since that water will tend to wash away a large portion of particulate material which may be airborne, and it will also dissolve some pollutants which are readily soluble in water. However, many of the pollutants which are not so readily dissolved in water should also be removed. Thus in highly polluted environments, as in some densely populated cities, it is desirable to get rid of carbon monoxide, carbon dioxide, sulphur compounds of combustion, and chemical vapours or minute droplets of liquid which may exist in the atmosphere and which can otherwise cause health difficulties.
  • the prefilter 26 (illustrated diagrammatically to a much larger scale in Fig 6) contains a membrane 30 of foam plastics material having intercommunicating cells, and this functions to reduce ingress of dust particles or oily vapours of substances into pockets containing carbon granules 31 which have been produced by a heat treatment process to be activated, the carbon granules being effective in adsorbing quantities of vapours or gases having high molecular weight, as well as some droplets of chemicals. Since the life of the carbon filters is very much less than the life of the wettable filter material of filter 20, it is more desirable that the prefilter should be more readily replaced than the wettable filter and for that reason the wettable filter 20 can be secured or located within the housing 13 by prior art methods. The illustrated arrangement however is preferred.
  • filters include substances which can accept and retain an electrostatic charge, of sufficient magnitude to release particulate material from being airborne, and such filters can also be employed, again upstream of the wettable filter pad 20.
  • the quality of air being breathed can be further enhanced, beyond what can be achieved by the wettable filter 20, and the prefilter pads can be readily renewed or replaced with a minimum of difficulty to a user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

On décrit un filtre de dispositif (10) de refroidissement par évaporation, dans lequel un filtre (20) absorbant humidifiable est guidé de façon à coulisser latéralement sous un diffuseur (22) d'eau qui envoie un flux d'eau le traversant vers le bas, et dans lequel un filtre sec (26) est guidé de façon à coulisser dans le boîtier du dispositif mais à l'extérieur du filtre humidifiable (20) afin de servir de préfiltre.
PCT/AU1994/000690 1993-11-09 1994-11-09 Configuration de filtration pour refroidisseur d'air WO1995013506A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU81345/94A AU8134594A (en) 1993-11-09 1994-11-09 Air cooler filter pad arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPM2304 1993-11-09
AUPM230493 1993-11-09

Publications (1)

Publication Number Publication Date
WO1995013506A1 true WO1995013506A1 (fr) 1995-05-18

Family

ID=3777337

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1994/000690 WO1995013506A1 (fr) 1993-11-09 1994-11-09 Configuration de filtration pour refroidisseur d'air

Country Status (1)

Country Link
WO (1) WO1995013506A1 (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001702A1 (fr) * 1997-06-30 1999-01-14 Js Humidifiers Plc Humidificateur
WO2001036879A1 (fr) * 1999-11-15 2001-05-25 Honeywell Inc. Filtre avec poignee
WO2001094137A1 (fr) * 2000-06-07 2001-12-13 Anatoly Anatolyevich Kutyev Procede d'epuration de l'air des impuretes nocives et dispositif correspondant
WO2005012802A1 (fr) * 2003-07-28 2005-02-10 F F Seeley Nominees Pty Ltd Humidificateur a evaporation
EP1983271A1 (fr) * 2007-04-16 2008-10-22 Practical Technology, S.L. Appareil de refroidissement
EP2090842A1 (fr) * 2008-02-14 2009-08-19 Yi-Lin Tang Ventilateur à évaporation avec chauffeur d'eau pour refroidissement, humidification et chauffage
EP2389546A1 (fr) * 2008-11-28 2011-11-30 LG Electronics Inc. Humidificateur
CN106855293A (zh) * 2015-12-07 2017-06-16 山东联星能源集团有限公司 一种智能空气监控的空气净化器
CN108592278A (zh) * 2018-05-25 2018-09-28 郑州云海信息技术有限公司 一种数据中心用加湿装置及其加湿方法
CN108592258A (zh) * 2016-04-22 2018-09-28 杭州云蜂工业设计有限公司 一种采用水帘过滤的空气净化器
CN109323341A (zh) * 2015-01-13 2019-02-12 杭州希玛士贸易有限公司 水过滤空气净化器
WO2019170953A1 (fr) * 2018-03-09 2019-09-12 Tomas Pardos Roberto Dispositif industriel solaire pour la réfrigération dans des entrepôts à bétail
EP3677847A1 (fr) * 2019-01-03 2020-07-08 Ontel Products Corporation Refroidisseur d'air par évaporation
USD948009S1 (en) 2020-05-29 2022-04-05 Ontel Products Corporation Evaporative air cooling tower
USD948680S1 (en) 2020-05-29 2022-04-12 Ontel Products Corporation Evaporative air cooling tower
USD948679S1 (en) 2020-03-26 2022-04-12 Ontel Products Corporation Personal air cooler
USD963135S1 (en) 2020-04-22 2022-09-06 Ontel Products Corporation Personal air cooler
USD967363S1 (en) 2021-04-05 2022-10-18 Ontel Products Corporation Personal air cooler
US11774116B2 (en) 2019-01-03 2023-10-03 Ontel Products Corporation Evaporative air cooling tower
USD1007657S1 (en) 2022-04-04 2023-12-12 Ontel Products Corporation Personal air cooling tower
US11852373B2 (en) 2019-01-03 2023-12-26 Ontel Products Corporation Evaporative air cooler having an ice pack
US11953256B2 (en) 2019-01-03 2024-04-09 Ontel Products Corporation Evaporative personal air cooler with clip

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU382161A (en) * 1960-04-25 1963-04-26 Lowa A. G Room air conditioner
AU7010374A (en) * 1973-06-14 1975-12-18 Braepabk Gs. A. ) Pty. Ltd Air conditioning pad assembly and method of production
AU8493682A (en) * 1981-06-19 1982-12-23 F F Seeley Nominees Pty Ltd Evaporative cooler pad frame support
AU8493582A (en) * 1981-06-19 1982-12-23 F F Seeley Nominees Pty Ltd Evaporative cooler pad
AU1921083A (en) * 1982-09-17 1984-03-22 Ratcliffe, D.G. Evaporative cooler with forced circulation
AU2835284A (en) * 1983-05-18 1984-11-22 F F Seeley Nominees Pty Ltd Air cooler
JPH03140730A (ja) * 1989-10-25 1991-06-14 Hitachi Ltd 自然蒸発式加湿器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU382161A (en) * 1960-04-25 1963-04-26 Lowa A. G Room air conditioner
AU7010374A (en) * 1973-06-14 1975-12-18 Braepabk Gs. A. ) Pty. Ltd Air conditioning pad assembly and method of production
AU8493682A (en) * 1981-06-19 1982-12-23 F F Seeley Nominees Pty Ltd Evaporative cooler pad frame support
AU8493582A (en) * 1981-06-19 1982-12-23 F F Seeley Nominees Pty Ltd Evaporative cooler pad
AU1921083A (en) * 1982-09-17 1984-03-22 Ratcliffe, D.G. Evaporative cooler with forced circulation
AU2835284A (en) * 1983-05-18 1984-11-22 F F Seeley Nominees Pty Ltd Air cooler
JPH03140730A (ja) * 1989-10-25 1991-06-14 Hitachi Ltd 自然蒸発式加湿器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, M-1156, page 87; & JP,A,03 140 730 (HITACHI et al.) 14 June 1991. *

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001702A1 (fr) * 1997-06-30 1999-01-14 Js Humidifiers Plc Humidificateur
WO2001036879A1 (fr) * 1999-11-15 2001-05-25 Honeywell Inc. Filtre avec poignee
WO2001094137A1 (fr) * 2000-06-07 2001-12-13 Anatoly Anatolyevich Kutyev Procede d'epuration de l'air des impuretes nocives et dispositif correspondant
WO2005012802A1 (fr) * 2003-07-28 2005-02-10 F F Seeley Nominees Pty Ltd Humidificateur a evaporation
EP1983271A1 (fr) * 2007-04-16 2008-10-22 Practical Technology, S.L. Appareil de refroidissement
EP2090842A1 (fr) * 2008-02-14 2009-08-19 Yi-Lin Tang Ventilateur à évaporation avec chauffeur d'eau pour refroidissement, humidification et chauffage
EP2389546A1 (fr) * 2008-11-28 2011-11-30 LG Electronics Inc. Humidificateur
EP2389546A4 (fr) * 2008-11-28 2012-11-07 Lg Electronics Inc Humidificateur
CN109323341A (zh) * 2015-01-13 2019-02-12 杭州希玛士贸易有限公司 水过滤空气净化器
CN106855293A (zh) * 2015-12-07 2017-06-16 山东联星能源集团有限公司 一种智能空气监控的空气净化器
CN108592258A (zh) * 2016-04-22 2018-09-28 杭州云蜂工业设计有限公司 一种采用水帘过滤的空气净化器
WO2019170953A1 (fr) * 2018-03-09 2019-09-12 Tomas Pardos Roberto Dispositif industriel solaire pour la réfrigération dans des entrepôts à bétail
CN108592278A (zh) * 2018-05-25 2018-09-28 郑州云海信息技术有限公司 一种数据中心用加湿装置及其加湿方法
US11774116B2 (en) 2019-01-03 2023-10-03 Ontel Products Corporation Evaporative air cooling tower
EP3677847A1 (fr) * 2019-01-03 2020-07-08 Ontel Products Corporation Refroidisseur d'air par évaporation
US10712029B1 (en) 2019-01-03 2020-07-14 Ontel Products Corporation Evaporative personal air cooler
CN114046577A (zh) * 2019-01-03 2022-02-15 安特尔制品公司 蒸发式自用空气冷却器
US11953256B2 (en) 2019-01-03 2024-04-09 Ontel Products Corporation Evaporative personal air cooler with clip
US11852373B2 (en) 2019-01-03 2023-12-26 Ontel Products Corporation Evaporative air cooler having an ice pack
USD948679S1 (en) 2020-03-26 2022-04-12 Ontel Products Corporation Personal air cooler
USD963135S1 (en) 2020-04-22 2022-09-06 Ontel Products Corporation Personal air cooler
USD948680S1 (en) 2020-05-29 2022-04-12 Ontel Products Corporation Evaporative air cooling tower
USD948009S1 (en) 2020-05-29 2022-04-05 Ontel Products Corporation Evaporative air cooling tower
USD967363S1 (en) 2021-04-05 2022-10-18 Ontel Products Corporation Personal air cooler
USD978308S1 (en) 2021-04-05 2023-02-14 Ontel Products Corporation Personal air cooler
USD1007657S1 (en) 2022-04-04 2023-12-12 Ontel Products Corporation Personal air cooling tower

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