GB2602017A - An air cleansing device - Google Patents

An air cleansing device Download PDF

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Publication number
GB2602017A
GB2602017A GB2019773.7A GB202019773A GB2602017A GB 2602017 A GB2602017 A GB 2602017A GB 202019773 A GB202019773 A GB 202019773A GB 2602017 A GB2602017 A GB 2602017A
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GB
United Kingdom
Prior art keywords
gas
liquid
air
absorption
intake
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
GB2019773.7A
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GB202019773D0 (en
GB2602017B (en
Inventor
Jason Thackray Paul
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2019773.7A priority Critical patent/GB2602017B/en
Publication of GB202019773D0 publication Critical patent/GB202019773D0/en
Publication of GB2602017A publication Critical patent/GB2602017A/en
Application granted granted Critical
Publication of GB2602017B publication Critical patent/GB2602017B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1475—Removing carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/30—Controlling by gas-analysis apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • 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
    • F24F8/133—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 by direct contact with liquid, e.g. with sprayed liquid
    • 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

Abstract

A device (99, fig. 1) for cleansing air (e.g. of carbon dioxide) has a monolithic housing (1, fig. 1) with a gas intake 5 and an intermediate channel leading to a gas exhaust 6 and a liquid pump 25 pumping liquid from a reservoir 4 to an absorption packing bed located in the channel and the gas passes through the bed which may contain Raschig rings (12, fig. 6). The liquid may be sprayed through a misting nozzle into the absorption bed and a condenser may be used to cool the liquid. Fans may be located in the air intake and exhaust and there may be a gas sensor 23 which may operate a gas intake means at a predefined gas concentration.

Description

AN AIR CLEANSING DEVICE
Field of the Invention
The present invention relates to air cleansing device, in particular a device for passing air through; more particularly but not exclusively a device for capturing, scrubbing, cleansing or offsetting carbon dioxide from air.
Background
Increasing awareness of air quality is a factor in many societies, even on a local scale.
In domestic or other properties it can be important to maintain breathed as clean as possible, particularly in polluted environments, and/or situations where ventilation is undesirable or difficult.
Prior Art
EP 3 491 690 (FINK et al) discloses an electrochemical cell comprising: a) a cell housing comprising: i) an air chamber; ii) an air chamber inflow port; iii) an air chamber outlet; iv) an electrolyte chamber for retaining a volume of an electrolyte; v) an oxidant reduction electrode for reducing a gaseous oxidant configured between the air chamber and the electrolyte chamber, vi) a fuel electrode; wherein a fuel is reacted at the fuel electrode and wherein the fuel electrode is positioned apart from the oxidant reduction electrode, thereby defining a gap, and wherein said electrolyte is in the gap; b) a scrubber module comprising an enclosure comprising: i) a scrubber media; ii) a scrubber inlet port configured to couple with an inlet air outflow port; and iii) a scrubber outlet port configured to couple with the air chamber inflow port; wherein the scrubber module is detachably attachable to said cell housing, and whereby the electrochemical cell operates when the scrubber is removed.
CN 105 833 649 (XIA) discloses a solar-powered air-purifying device, characterized in: including both the cylindrical-shaped housing, the housing and has a base, the bottom of the base is provided with a storage battery, pump, heat wire, electric energy input coupled to a water pump, a heating wire supply of operating power, arranged at bottom of the base water inlet, water outlet, water inlet in communication with the spray bar through the water pump and, at the centre of spray bar mounted on the base surface, and extending into the housing, a spray nozzle provided on top of a spray bar, heat wire mounted on the pump to the outlet end, to heat the water of convenience in spraying, provided with an air inlet, an exterior wall of baffle fan housing, provided with a top of a layer of carbon fibre adsorption layer arranged in the housing, housing the crest of the baffle fan outer edges of the solar photovoltaic panel, a ring of solar photovoltaic panel is connected to the battery power input at the output of electrical energy.
US 5 997 619 (KNUTH) discloses a self contained air movement system for at least one of air purification and infection control comprising: an elongated upright enclosed housing including a base member, side walls, and an upper member through which an air stream may be caused to flow sequentially, said base member being remote from said upper member, said housing defining a germicidal chamber therein; primary filter means having an outer peripheral surface, an inner peripheral surface, and defining an interior plenum, said inner peripheral surface being spaced from said outer peripheral surface, said primary filter means being mounted proximate said base member; said housing having air inlet means proximate said primary filter means and having air exhaust means in said upper member; ultraviolet germicidal irradiation means disposed in the germicidal chamber; and fan means overlying said primary filter means for drawing unclean air from the environment into and through the air inlet means, through said primary filter means, through the plenum and then into the germicidal chamber in a vortex-shaped whirling mass air stream flowing in a protracted course around and past said irradiation means for maximized exposure to said irradiation means whereby a purified air stream is discharged through the air exhaust means in said upper member for return to the environment.
The present invention arose in order to overcome problems suffered by existing devices.
Summary of the Invention
According to the present invention there is provided an air cleansing device comprising a monolithic housing with a gas intake and an intermediate channel leading to a gas 35 exhaust, a liquid reservoir, a liquid movement means which directs from the reservoir to an absorption means, wherein the absorption means is located in the channel and the gas is arranged to pass through the absorption means.
In this way the device may be envisaged to capture and remove carbon dioxide in 5 particular from gas passing from the gas intake to the gas exhaust, and thereby scrub or offset the air surrounding the device in use.
In some embodiments the exhaust comprises a fan This may be arranged to draw air up through the channel.
In some embodiments the intake comprises a fan. This may be arranged to draw air into the channel.
The absorption means may be envisaged to provide a large surface area for liquid 15 within the channel to increase absorption of gas as the gas and the fluid pass through the channel.
In some embodiments the absorption means comprises Raschig rings. These rings may be envisaged to enlarge the surface of the absorption means In some embodiments the liquid movement means comprises a pumping means.
In some embodiments the reservoir comprises a displaceable tank or container.
In some embodiments the device comprises one or more sensors. For example the device may comprise a carbon dioxide sensor (002). This sensor may be arranged to sense surrounding air or gas in a location proximate the device in use, so as to allow control of the device or intake. For example the device may include in some embodiments a gas sensing means which operates the gas intake means at a predefined gas concentration.
In some embodiments the channel comprises one or more dispersal means. Such dispersal means may comprise nozzles or similar, arranged to disperse the liquid as a misted fluid. In this way the absorption of the liquid in the gas may be maximised or 35 facilitated for example wherein a current of air is passed through a fine mist spay of reagent then through a narrowing to cause a bottleneck and vortex so as to mix reagent and gas thus scrubbing the air flow.
In this way it may be envisaged that the device of the present invention may be utilised 5 to scrub or cleanse air passing through the absorption means, wherein the fluid is envisaged to absorb preferred or predefined elements from the gas.
For example the device may be envisaged to capture CO2 from the air as it passes from the intake to the exhaust by providing intensive contact with a fluid such as sodium 10 hydroxide. The fluid absorbs the CO2 element from the air during contact.
In further embodiments it may be envisaged that where a fluid is as hypochlorous acid is used then the device may be used to help kill airborne viruses.
In further embodiments essential oils may be envisaged to be used as the fluid, such that the device can provide perfume and/or antioxidant effects in the passage of gas from the intake to the exhaust.
The device may comprise a local control means, for example a touchscreen and/or button control means. The device may additionally or alternatively comprise a remote 20 control means, for example wherein the device may include a transceiver.
A preferred embodiment of the invention will now be described by way of example only and with reference to the Figures in which:
Brief Description of Figures
Figure 1 shows an isometric view of an embodiment of the device according to the present invention, with door open to access the reservoir; Figure 2 shows a reverse isometric view of the embodiment of the device as shown in Figure 1; Figure 3 shows an isometric view of an embodiment of the device according to the 35 present invention; Figure 4 shows a reverse isometric view of the embodiment of the device as shown in Figure 3; Figure 5 shows an isometric exploded view of the embodiment of the device shown in 5 Figure 1 Figure 6 shows a reverse isometric exploded view of the embodiment of the device shown in Figure 1 And Figure 7 shows a sectional front view of the embodiment shown in Figure 1.
Detailed Description of Figures
With reference to the figures there is shown an embodiment of the device generally comprising an air cleansing device 99 comprising a monolithic housing 1 with a gas intake 5 and an intermediate channel leading to a gas exhaust 6, a liquid reservoir 4, a liquid movement means leading from the reservoir to an absorption means, wherein the absorption means is located in the channel and the gas is arranged to pass through the absorption means.
In particular reference to the pictured embodiment the embodiment comprises an upright elongate housing, extending upwards from a pedestal base.
The channel passes from a tank providing the reservoir past a carbon dioxide sensor 23.
The housing has an access door on one side at the base, which allows access to a 30 space for the tank providing the reservoir, the tank has a volume of 5.0 litres.
The door can then be opened to remove the scrubbing fluid storage tank so it can be quickly and easily replaced.
The housing has a top face exhaust fan with a filter fit over the front of the fan allowing air to easily flow out but stopping any large debris from entering.
The top also has a touch screen display used to control the embodiment which also gives a digital readout of air concentration levels and flow rate.
The topmost exhaust fan pulls air through the device and a lower intake comprises an intake fan and cover to drive air into the device.
The embodiment is arranged internally to create a fine mist to maximise air/liquid contact to absorb the highest amount of CO2, comprising one or more nozzles prior to 10 the absorption means.
The absorption means comprises a glass cylindrical column 21 with internal Raschig rings 12, so as to provide a large surface area for gas absorption within the absorption column.
A 12V diaphragm pump 25 pumps scrubbing fluid up from the storage tank and into the absorption column, with an intermediate misting nozzle prior comprised in the liquid movement means.
A spiral of tubing 11 is provided in a second column 22 continuing the liquid channel back to the tank, and is also a cylindrical glass column, the spiral so as to act as a condenser for use in cooling of the scrubbing fluid.
A displaceable tray sits underneath the storage tank on the base and can be removed 25 for cleaning when spills occur.
The invention has been described by way of examples only and it will be appreciated that variation may be made to the above-mentioned embodiments without departing from the scope of invention as defined by the claims, in particular but not solely 30 combination of features of described embodiments.

Claims (9)

  1. Claims 1 An air cleansing device comprising a monolithic housing with a gas intake and an intermediate channel leading to a gas exhaust, a liquid reservoir, a liquid movement means which directs liquid from the reservoir to an absorption means, wherein the absorption means is located in the channel and the gas is arranged to pass through the absorption means.
  2. 2. A device according to claim 1 wherein the intake comprises a fan.
  3. 3. A device according to claim 1 or 2 wherein the exhaust comprises a fan.
  4. 4. A device according to any preceding claim wherein the reservoir is provided within a displaceable tank.
  5. 5. A device according to any preceding claim comprises a liquid pumping means.
  6. 6. A device according to any preceding claim wherein the absorption means comprises Raschig rings.
  7. 7. A device according to any preceding claim comprises a condenser for cooling the liquid.
  8. 8. A device according to any preceding claim comprising a misting nozzle located upstream of the liquid movement means
  9. 9. A device according to any preceding claim comprising a gas sensing means which operates the gas intake means at a predefined gas concentration
GB2019773.7A 2020-12-15 2020-12-15 An air cleansing device Active GB2602017B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2019773.7A GB2602017B (en) 2020-12-15 2020-12-15 An air cleansing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2019773.7A GB2602017B (en) 2020-12-15 2020-12-15 An air cleansing device

Publications (3)

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GB202019773D0 GB202019773D0 (en) 2021-01-27
GB2602017A true GB2602017A (en) 2022-06-22
GB2602017B GB2602017B (en) 2022-12-28

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GB2019773.7A Active GB2602017B (en) 2020-12-15 2020-12-15 An air cleansing device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1321735A (en) * 1970-05-20 1973-06-27 Aeromix Ets Purification of gases or vapours
CN208493648U (en) * 2018-07-18 2019-02-15 河北科大环境工程有限公司 A kind of energy-saving and environment-friendly equipment for treating industrial waste gas
CN208771169U (en) * 2018-05-04 2019-04-23 铜陵六国威立雅水务有限责任公司 A kind of sewage treatment odor treating device
CN110917819A (en) * 2019-12-15 2020-03-27 张影 Tail gas absorbs and collection device based on carbon dioxide absorbs suitable for tunnel
CN210814456U (en) * 2019-10-21 2020-06-23 河南绿蓝环保工程有限公司 High-efficient scrubbing tower of extension gaseous residence time

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1321735A (en) * 1970-05-20 1973-06-27 Aeromix Ets Purification of gases or vapours
CN208771169U (en) * 2018-05-04 2019-04-23 铜陵六国威立雅水务有限责任公司 A kind of sewage treatment odor treating device
CN208493648U (en) * 2018-07-18 2019-02-15 河北科大环境工程有限公司 A kind of energy-saving and environment-friendly equipment for treating industrial waste gas
CN210814456U (en) * 2019-10-21 2020-06-23 河南绿蓝环保工程有限公司 High-efficient scrubbing tower of extension gaseous residence time
CN110917819A (en) * 2019-12-15 2020-03-27 张影 Tail gas absorbs and collection device based on carbon dioxide absorbs suitable for tunnel

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Publication number Publication date
GB202019773D0 (en) 2021-01-27
GB2602017B (en) 2022-12-28

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