WO2017063584A1 - Air purification method and apparatus - Google Patents

Air purification method and apparatus Download PDF

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Publication number
WO2017063584A1
WO2017063584A1 PCT/CN2016/102145 CN2016102145W WO2017063584A1 WO 2017063584 A1 WO2017063584 A1 WO 2017063584A1 CN 2016102145 W CN2016102145 W CN 2016102145W WO 2017063584 A1 WO2017063584 A1 WO 2017063584A1
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WO
WIPO (PCT)
Prior art keywords
air
cleaned
partial
region
fan
Prior art date
Application number
PCT/CN2016/102145
Other languages
French (fr)
Inventor
Paul Yiu Shum KO
Original Assignee
Ko Paul Yiu Shum
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 Ko Paul Yiu Shum filed Critical Ko Paul Yiu Shum
Priority to CN201680070893.4A priority Critical patent/CN108700314A/en
Publication of WO2017063584A1 publication Critical patent/WO2017063584A1/en

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    • 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
    • F24F8/80—Self-contained air purifiers
    • 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
    • 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
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters

Definitions

  • the present disclosure relates to an air purification method and apparatus, and more particularly, relates to an air purification method and apparatus which is preferably applied in hospitals and/or clinics for creating a dust-free environment. It can also be used in the home of the asthma patient, where the level of particulate matters need to be strictly controlled.
  • the present disclosure provides an effective method to remove gases phase pollutants, formaldehyde, particulate matter in size of less than 2.5 and or 10 micron meter (i.e. ) PM2.5 and/or PM10) , especially at the breathing zone of an environment.
  • air purifiers or filtering devices become almost an essential electrical appliance at home. They are especially in need by the users who are allergic to particulate matters or volatile organic compounds. While various different types of air purifier with different filtering mechanisms are available in the market, the consumers can select the suitable air purifiers according to their needs. Serving room size and the types of pollutant to be removed as specified by the manufacturer are usually the common criteria to be considered when the purchasing the air purifier.
  • the conventional market available air purifiers are usually designed in such a way that when in actual application, the airflow of the air intake and air output may of the fan be diminished by the place where the air purifiers being stand on, such as floor, or being hanged on, such as wall or ceiling.
  • the present disclosure presents a method for air purification method includes: removing a portion of the pollutants in a polluted air through drawing the polluted air from a first region to a second region on passing through the primary filter and forming a partial-cleaned-air; wherein the first region has an atmospheric pressure equal to that of the surrounding environment, the second region with an atmospheric pressure lower than that of the surrounding environment; changing the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan; wherein the airflow direction of the perpendicular-partial-cleaned-air is perpendicular to the original air flow direction of the partial-cleaned-air; blowing the perpendicular-partial-cleaned-air to a third region to concentrate the perpendicular-partial-cleaned-air, forming a concentrated-partial-cleaned-air, the atmospheric pressure within the third region is higher than the atmospheric pressure of the surround environment; driving the concentrated-
  • the air purification method described wherein the first region and the second region is completely separated by the primary filter.
  • the air purification method described wherein the first region and the second region is partially separated by the primary filter.
  • the air purification method described wherein one non-axial fan is employed to draw the polluted air from the first region and the second region, and to change the direction of the partial-cleaned-air to the perpendicular-partial-cleaned-air is a non-axial type fan.
  • the air purification method described wherein the fan is a double blade centrifugal fan contains an isolating casing to house its blade and/or motor, the fan further having two fan air intakes are at both side of its isolating casing.
  • Non axial type fan such as centrifugal fan is preferred over an axial type fan to changes the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air, in such case, the unwanted phenomena that the air flow volume of drawing the polluted air from a first region to a second region is diminished due to the air resistance within the third region can be prevented.
  • the primary filter is filter for particulate pollutant removal, or for larger size particulate pollutant removal; further the primary filter is a filter includes at least any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate and titanium dioxide, silver, filter for particulate pollutant removal, or for larger size particulate pollutant removal.
  • the primary filter is a bi-layer filters includes a large size particle removal filter, and a gases pollutants removal filter; wherein the gases pollutants removal filters includes honeycomb structure therein, housing adsorbing materials for removal of the gases pollutants, the primary filter is disposed upright in position, so that the honeycomb structure acting as air channel for laminar air to pass through it.
  • the air purification method described the portion of the concentrated-partial-cleaned-air which being driven to flow perpendicular to the original direction of the concentrated-partial-cleaned-air is larger than the portion of the concentrated-partial-cleaned-air are driven to flow straight without changing its direction.
  • the air purification method described the main filter form the peripheral of the third region.
  • the air purification method described wherein the main filter is a particulate filter for removing particulate matter in the dimension of less than 10 micron meter.
  • the air purification method described wherein the main filter is a particulate filter for removing particulate matter in the dimension of less than 2.5 micron meter.
  • the air purification method described wherein the main filter is a filter includes any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate, titanium dioxide, silver.
  • the third region houses a device to generate the acoustic wave; the acoustic wave will be in low to medium frequency; the acoustic wave increases the travel distance of the particulate pollutants within the third region, and/or in the filter media of the main filter, which would make the particulate pollutants to be more easier to be captured by the filter media; the acoustic wave further enhance the turbulence diffusion effect on the particulates pollutants by the main filter, the acoustic wave further generate additional frictional electrostatic charges on the filter media to capture the particulates pollutants.
  • the first region and the second region align in the same horizontal level, which are in lower level vertically compare to the third and the forth region; the forth region align above the third region.
  • the present disclosure further illustrated a method of air purification, wherein in a laminar air flow creates by a non-axial fan, remove a portion of the pollutants from a polluted air through a primary filter and forming a laminar flowing partial-cleaned-air; by the further action of the non-axial fan, changes the direction of the laminar flowing partial-cleaned-air to a laminar flow perpendicular-partial-cleaned-air, which the direction of it is perpendicular to the original direction of the laminar flowing partial-cleaned-air; expels the laminar flow perpendicular -partial-cleaned-air into a pollutant concentrating chamber and convert the laminar air flow nature of the perpendicular-partial-cleaned-air to a concentrated-partial-cleaned-air; the pollutant concentrating chamber provides a space to concentrates the pollutants level of the air.
  • the sudden concentrated of the pollutants level in the fourth region creates the influences of increasing the residence time of the pollutants within the pollutant concentrating chamber so that it is more easier to be arrested by the filter media of the main filter; enhancing the turbulence diffusion effect on the pollutants by the main filter; enhancing the chance to generate additional frictional electrostatic charges on the particulate and increase the efficiency of the main filter to capture the particulates pollutants.
  • the present disclosure provides an air purification apparatus with creates least static pressure drop to the air purification apparatus, retain the highest airflow, and hence the highest fan and filtering efficiency.
  • An air purification apparatus includes: a casing; at least one air inlet equipped with primary filter, being disposed at an upstream of the air purification apparatus, on its casing; at least one air outlet equipped with main filter, being disposed at an downstream of the air purification apparatus, on its casing; a fan includes an isolated casing to house its blade and/or its motor, being disposed in between the air inlet and the air outlet of the air purification apparatus, the fan further includes at least one fan air intake and one fan air output; a pollutant concentrating chamber (equivalent to the third region as described above) being disposed in between the fan air output and the air outlet within the casing; wherein polluted air is being drawn in to the air purification apparatus through the air inlet by the fan; the polluted air is first purified by a primary filter to become partial cleaned air.
  • the direction of the partial cleaned air changed in an orientation which is perpendicular to the original airflow direction (i.e., changes the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan) ; the entering to the pollutant concentrating chamber, the pollutants in the air is compressed to become more concentrated (forming a concentrated-partial-cleaned-air) , the pollutants level is then become higher in compare to the pollutants level of the partial cleaned air.
  • the partial cleaned air (the concentrated-partial-cleaned-air) leaving the pollutant concentrating chamber and entering to the main filter, it becomes a completed cleaned air (i.e. driving the concentrated-partial-cleaned-air out from the third region to a forth region through a main filter as mentioned above) .
  • At least a portion of the complete cleaned air further change its direction; the direction of a portion of the complete cleaned air is deviated from original direction of the partial cleaned air which blew out from the fan air output.
  • the air purification apparatus includes two air inlets; the two air inlets located at the two opposite sides of the casing; two regions of polluted air are drawn to flow into the air purification apparatus separately through the two air inlets.
  • the pollutant concentrating chamber provides a space to well-mixed the partial cleaned air into uniformity nature and rectify it, or re-directs it to the main filters before being discharged from the two air outlets.
  • Two regions of air are first drawn into the two fan air intakes of the air purification apparatus through the two air inlets, the two regions of partial cleaned air were then mixed and expelled to a pollutant concentrating chamber through the fan air output; the partial cleaned air are then forced to hit onto the main filter.
  • At least one main filter are in an alignment perpendicular to the direction of the partial cleaned air, the portion of the partial cleaned air through exist from this main filter and be discharged out from the air purification device through the air outlet.
  • the fan further includes two fan air intakes at two sides of its isolated casing and at least one fan air output.
  • the fan is a centrifugal fan with two fan air intakes at both size of its isolating casing.
  • the fan is a non-axial type fan.
  • planer surface of the two fan air intakes are coherence and of the same orientation to the planer surface of the two air inlets, to prevent non-uniformity airflow.
  • planer surface the fan air intake and the planer surface of the main filter are aligned vertically.
  • the air purification apparatus further includes a component to convert the physical and/or chemical nature of the partial cleaned air in the pollutant concentrating chamber (the third region) .
  • the component is one or any one of the combination of the below components: an ionizer; an ozone generator; a UV sterilizer lamp; a electrostatic precipitator; a charging component; a sound generator.
  • the direction of at least fan air intake is perpendicular to the direction of at least one fan air output; and the planer surface of fan air intake and the planer surface of the main filter are in a perpendicular relationship
  • the air purification apparatus wherein the direction of the air inlet, air outlet, fan air intake and fan air output are orientated in a way so that: no turbulent airflow will be created in between [a] the floor, the wall or the ceiling on where the air purification apparatus stood, and; [b] all air output of the fan and all air inlet and air outlet of the casing; (2) the airflow direction by the fan air intake is parallel direction to the floor the wall or the ceiling on where the air purification apparatus stood.
  • the air purification apparatus wherein regardless the orientations of all air inlet (s) and air outlet (s) on the casing, the volume airflows being drawn into the fan air intake and the blew out from the fan air output will not be diminished due to the floor, the wall or the ceiling on where the air purification apparatus stood.
  • the air purification apparatus wherein the direction of the airflow being blown out from the fan air output may be in one of the following orientation:
  • the air purification apparatus wherein it further includes: at least one primary filter for removing large size particulate be installed at the air inlets; at least one higher grade particulate removal filter as the main filter be installed at the air outlets.
  • the air purification apparatus wherein it further includes: an odor removal filter, the odor removal filter be installed at the air inlets or between the air inlet and the fan air intake.
  • the air purification apparatus wherein it further include an ionizer, the ionizer being installed at the downstream position of the fan air output and upstream position of the main filter. It is being installed at a pollutant concentrating chamber.
  • the air purification apparatus includes: a double blade centrifugal fan, having two fan air intakes at both sides of the centrifugal fan, and having one fan output at the central of the centrifugal fan; wherein the planer surface of the two fan intakes are disposed vertically and the fan air output is directing upwardly, when the air purification apparatus is standing upright;
  • the air purification further includes: two air inlets being disposed on two side of the casing of the air purification apparatus (thereafter named “side-air-inlet” ) ; the planer direction of the two side-air-inlets are in same directions as the planer orientation of the two fan air intake; and at least one air outlet being disposed on the top side of the of the air purification apparatus (thereafter named “top air outlet” ) , when it is standing upright;
  • the air purification apparatus further includes two air outlets being disposed two sides of the of the air purification apparatus (thereafter named “side-air-outlet” ) , when the air purification apparatus is standing upright; the two side-air-outlets are located at an upper vertical position than the two side-air-inlets; the side-air-inlets and the side-air-outlets are in perpendicular to each other when they are viewed from the top view of the air purification apparatus.
  • side-air-outlet two air outlets being disposed two sides of the of the air purification apparatus
  • the air purification further includes two primary filters for removing large size particulate be installed at the two air inlets respectively, and higher grade particulate removal filters and/or gases phase removal filters are being installed at the air outlets respectively.
  • the air purification apparatus further includes at least a supporting stand or caster wheel so that the whole Air purification apparatus can be stood on floor, or be hanged on wall or ceiling through the supporting stand or caster wheels.
  • the air purification apparatus at least one planer surface of the fan air intake is perpendicular to one of the following components of the air purification apparatus, when viewing from the top of the air purification apparatus at when it is placing upright: the side air outlets; the top air outlets; the main filters placing at the air outlet.
  • planer surface of the air inlet be in the same orientation or be paralleled to the planer surface of the fan air intake, it is also not necessary the planer surface of the air outlet be in the same orientation with or parallel to the planer surface to the fan air output; nevertheless
  • the air purification apparatus wherein it further includes an ionizer, the ionizer being installed at the downstream position of the fan, upstream position of the air outlet.
  • the air purification apparatus further include: a first housing section and a second housing section; at least a casing; a pollutant concentrating chamber; wherein the first housing section and the second housing section are disposed within the casing; wherein the air inlet and the fan, and the second region are located at the first housing section; a pollutant concentrating chamber (i.e., the third region) , the main filter and the air outlet are disposed at the second housing section; the first and the forth regions are located outside the air purification apparatus.
  • a pollutant concentrating chamber i.e., the third region
  • the second housing section is located upper vertically over the first housing section.
  • the first region is a region outside the casing of the air purification apparatus
  • the second region is a region inside the casing of the air purification apparatus; wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
  • the first region is a region outside the casing of the air purification apparatus
  • the second region is a region inside the casing of the air purification apparatus (which is behind/downstream of the primary filter)
  • the second region is located outside the isolating casing of the fan; wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
  • the first region is a region outside the casing of the air purification apparatus
  • the second region is a region behind (downstream of) the fan air intake, however upstream of the fan blades; wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
  • FIG. 1 illustrates in an embodiment, the first region and the second region is completely separated by the primary filter.
  • FIG. 2 illustrates in another embodiment, the air purification apparatus described wherein the first region and the second region is partially separated by the primary filter.
  • FIG. 3 indicates the schematic diagram of one air purification apparatus in another embodiment.
  • FIG. 4 indicates the schematic diagram of one air purification apparatus in another embodiment.
  • FIG. 1 illustrates in an embodiment 10, the first region 1000 and the second region 2000 is completely separated by the primary filter 108.
  • the primary filter is being hold at one air inlet 210 of the casing 200 of the embodiment.
  • the region 1000 at one side of the primary filter, which is the environment nearby around the air purification apparatus, is being defined as the first region.
  • the second region is upstream of all other components 900 in the air purification apparatus 10.
  • FIG. 2 illustrated the air purification apparatus wherein the first region 1000 and the second region 2000 is partially separated by the primary filter 108.
  • the primary filter 108 is in form of a hollow cylinder, wherein at one end of the hollow cylindrical primary filter 108, it is attached with a fan 208, the fan 208maybe a counter-flow fan208 in another embodiment; at the other end of the hollow cylindrical primary fan, it include at least an opening.
  • the region at the cavity within the hollow cylindrical primary filter 108 is being regarded as the second region 2000.
  • the region 1000 surround the hollow cylindrical primary filter, which is also the environment nearby around the air purification apparatus, is being defined as the first region 1000.
  • Air at the first region 1000 and the second region 2000 can be communicated with each other through the opening 406 at one end of the said hollow cylindrical primary filter 108 (or the air at the first region 1000 and the second region 2000 are transferrable to each other through the said opening 406 ) .
  • the fan blow out air 500 is to pass by the hollow section of the cylindrical filter 108, it will created a Bernoulli Effect and/or a Venturi Effect, within the hollow cylindrical primary filter 108, or at the region close to the opening 406 at one side of the hollow cylindrical primary filter.
  • FIG. 3 indicates an air purification apparatus 10 in one embodiment includes: a casing in three parts (top) 100 (middle) 200 (bottom) 300; wherein in another embodiment the casing maybe a whole piece instead of split into three parts.
  • the three part of the casing are connected together by locks 101 201, they are detachable into and be resembled with an additional unit, so that the casing is connected in a sequence as one top unit 100; multiple middle units 200; and one bottom unit 300.
  • air inlet 210 having equipped with a primary filter108, being disposed at an upstream of the air purification apparatus, on its casing 200; air outlet 220 equipped with main filter 222, being disposed at an downstream of the air purification apparatus, on the two side of its casing 200; a fan 208 includes an isolated casing to house its blade and motor, being disposed in between the air inlet 210 and the air outlet 220 of the air purification apparatus 10, the fan 208 further includes fan air intake 205 and one fan air output 206; in the current embodiment, the fan is a double blade centrifugal fan with two fan intakes at both sides; a pollutant concentrating chamber400 being disposed in between the fan air output 206 and the air outlet 220 within the casing 200.
  • the first region 1000 is the region upstream the primary filter108. It is also the region at one side of the primary filter, which is the environment nearby around the air purification apparatus.
  • the second region 2000 is the region which is right downstream the primary filter.
  • the third region 3000 is the region is where the pollutant concentrating chamber located, the forth region 4000 is a region right downstream of the main filter.
  • polluted air is being drawn from the first region 1000, from the environment surrounding the air purification apparatus, into the second region 2000 of the air purification apparatus10 through the air inlet 210 by the fan 208; the polluted air is preliminary cleaned by the primary filter to become partial cleaned air; on entering to the pollutant concentrating chamber 400 of the third region 3000, the direction of the partial cleaned air first changed once by the fan 801, from the vector in the x direction, to the vector in the z direction; when the partial cleaned air leaving the pollutant concentrating chamber 400of the third region 3000 and entering to the main filter 222 to become a completed cleaned air at the forth region 4000, at least a portion of the complete cleaned air further change its direction; the direction of a portion of the complete cleaned air is deviated from original direction (which is in the z direction) of the partial cleaned air which blew out from the fan air output, a portion of the completed cleaned air (802a) is now flowing in the y direction on existing the main filter at both sides of the casing 200.
  • FIG. 3 further indicates the structure of the air purification apparatus 10 are assembled in a way that it includes three casing, the top 100, body 200 and base 300 casings from a complete singe-unit-device, a complete Air purification apparatus. They are hold together in position by locks 101 &201.
  • Two air inlets 210 (one in the front and one at the back) and three air outlet (two at left and right 220) and one at top 110 on a casing 100, 200, 300.
  • Three main filters 111 &222 be installed at the air outlet 220, 110 on the casing.
  • One fan 208 being installed within the casing between the air inlet 210 and air outlet 110 220, the fan having two fan air intakes 205 (at the front side and back side) and one fan air output 206.
  • the fan 208 is a double blade centrifugal fan, having two fan air intakes at both sides and having one fan output at the central of it.
  • the fan 208 is having an isolate casing housing its blade and motor.
  • the direction of the fan air intake 205 is perpendicular to the direction fan air output 206.
  • All the fan air intake 205 are perpendicular to the planer surfaces of the main filters 111 &222, which are located at the air outlets 110 220. (Refer to the vector direction as shown, the direction of the fan air intakes is of X vector, it is perpendicular to the planer surface of the main filter 111 in Z vector, it is also perpendicular to the planer surface of the main filter 220 in Y vector ) .
  • the two air inlets 210 i.e., two side-air-inlets
  • the planer direction of the two side-air-inlets 210 are in same directions and orientation as the planer orientation of the two fan air intake 205.
  • Primary filters may be disposed at the air inlets 210.
  • the two side-air-outlets 220 are located at an upper vertical position than the two side-air-inlets 210;
  • the orientation of the air inlet 210, air outlet 220, air intake 205 and air output 206 should be customized in a way that the air flow in and/or flow out from the air inlet 210, air outlet 220, air intake 205 and air output 206should meet the following criteria: (1) no turbulent airflow will be created in between [a] the floor, the wall or the ceiling on where the air purification apparatus stood, and; [b] all air output of the fan and all air inlet and air outlet of the casing; (2) the airflow direction 801 by the fan air intake is parallel direction to the floor the wall or the ceiling on where the air purification apparatus stood (the air flow 801 in the vector of x and it is parallel to the flow in the x-y plan) .
  • the air purification apparatus wherein, regardless the orientations of all air inlet (s) 210 and air outlet (s) 220 on the casing 200, the volume airflows being drawn into the air intake 205 and the blew out from the air output 206 of the fan 208 will not be diminished due to the floor, the wall or the ceiling on where the air purification apparatus stood.
  • the airflows 802a, 802b being blew out from the fan air output 206 of the fan 208 is in opposition direction to planer surface the floor on where the air purification apparatus 10 stood, the airflow 802b is in opposite and perpendicular to direction to the floor on where the air purification apparatus stood (refer to the direction, the airflow 802b and the floor are in Z and X-Y planar correlation) .
  • the airflow 802a being blew out from the fan air output 206 is in parallel to and the same direction (which is parallel to) to the planer surface of the floor on where the air purification apparatus stood (refer to the direction, the airflow 802a and the floor are in Y and X-Y planar correlation) .
  • the air purification apparatus 10 wherein it further includes: an odor removal filter, the odor removal filter is installed at the air inlets 210 or between the air inlet 210 and the air intake 205.
  • the air purification apparatus wherein it further includes an ionizer, the ionizer being installed at the downstream position of the fan, which is between the air outlet 206 and the air outlet 110, 220. More specifically, the ionizer is located in the pollutant concentrating chamber400.
  • the air purification apparatus40 in the present disclosure may further includes: a first housing section 1008 and a second housing section 2008; the casing 100 200 300; a pollutant concentrating chamber 400; wherein the first housing section 1008 and the second housing section 2008are disposed within the casing 200; wherein the air inlet 210 (which equipped with primary filter) and the fan 208 are located at the first housing section 1008; the pollutant concentrating chamber 400, the main filters 111 222 and the air outlets 220 are disposed at the second housing section 2008;
  • the second housing section 2008 is located upper vertically over the first housing section 1008.
  • FIG. 3 and 4 further illustrates the air purification method in the present disclosure includes: removing a portion of the pollutants in a polluted air 801 through a primary filter which is equipped at the air inlet 210, by drawing the polluted air from a first region with an atmospheric pressure equal to that of the surrounding environment to a second region with an atmospheric pressure lower than that of the surrounding environment on passing through the primary filter, forming a partial-cleaned-air; changing the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan; the airflow direction of the perpendicular-partial-cleaned-air is perpendicular to the original air flow direction of the partial-cleaned-air; after the conversion of the direction of the partial-cleaned-air to the perpendicular-partial-cleaned-air, the perpendicular-partial-cleaned-air are blown to a third region to become concentrated-partial-cleaned-air
  • a portion of the concentrated-partial-cleaned-air are driving to flow perpendicular to the original direction of the concentrated-partial-cleaned-air (802a) ; a portion of the concentrated-partial-cleaned-air are driven to flow straight (802b) without changing its direction.

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

Abstract

An air purification device (10) includes a casing (200) with air inlets (210) and outlets (220), a fan (208), a filter (222) which is installed at the air outlets (220), a supporting stand (310) so that the air purification device can be stood on floor or be hanged on wall or ceiling. The air intake (205) of the fan (801) and at least one filter (222) are in a perpendicular relationship.

Description

AIR PURIFICATION METHOD AND APPARATUS
FIELD OF THE TECHNOLOGY
The present disclosure relates to an air purification method and apparatus, and more particularly, relates to an air purification method and apparatus which is preferably applied in hospitals and/or clinics for creating a dust-free environment. It can also be used in the home of the asthma patient, where the level of particulate matters need to be strictly controlled.
The present disclosure provides an effective method to remove gases phase pollutants, formaldehyde, particulate matter in size of less than 2.5 and or 10 micron meter (i.e. ) PM2.5 and/or PM10) , especially at the breathing zone of an environment.
BACKGROUND OF THE DISCLOSURE
As the indoor air quality are of more concerned by the public, air purifiers or filtering devices become almost an essential electrical appliance at home. They are especially in need by the users who are allergic to particulate matters or volatile organic compounds. While various different types of air purifier with different filtering mechanisms are available in the market, the consumers can select the suitable air purifiers according to their needs. Serving room size and the types of pollutant to be removed as specified by the manufacturer are usually the common criteria to be considered when the purchasing the air purifier.
Nevertheless, the conventional market available air purifiers are usually designed in such a way that when in actual application, the airflow of the air intake and air output may of the fan be diminished by the place where the air purifiers being stand on, such as floor, or being hanged on, such as wall or ceiling.
SUMMARY
The present disclosure presents a method for air purification method includes: removing a portion of the pollutants in a polluted air through drawing the polluted air from a first region to a second region on passing through the primary filter and forming a partial-cleaned-air； wherein the first region has an atmospheric pressure equal to that of the surrounding environment, the second region with an atmospheric pressure lower than that of the surrounding environment； changing the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan； wherein the airflow direction of the perpendicular-partial-cleaned-air is perpendicular to the original air flow direction of the partial-cleaned-air； blowing the perpendicular-partial-cleaned-air to a third region to concentrate the perpendicular-partial-cleaned-air, forming a concentrated-partial-cleaned-air, the atmospheric pressure within the third region is higher than the atmospheric pressure of the surround environment； driving the concentrated-partial-cleaned-air out from the third region to a forth region through a main filter, wherein the forth region with an atmospheric pressure equal to that of the surrounding environment.
In one embodiment, the air purification method described wherein the first region and the second region is completely separated by the primary filter.
In another embodiment, the air purification method described wherein the first region and the second region is partially separated by the primary filter.
The air purification method described wherein a non-axial type fan is used to draw the polluted air from the first region and the second region.
The air purification method described wherein a centrifugal fan is used to draw the polluted air from the first region and the second region.
The air purification method described wherein the means to convert the partial-cleaned-air to the perpendicular-partial-cleaned-air is performed a non-axial type fan.
The air purification method described wherein the fan changing the direction of the partial-cleaned-air to the perpendicular-partial-cleaned-air is a centrifugal fan.
The air purification method described wherein one non-axial fan is employed to draw the polluted air from the first region and the second region, and to change the direction of the partial-cleaned-air to the perpendicular-partial-cleaned-air is a non-axial type fan.
The air purification method described wherein the fan is a double blade centrifugal fan contains an isolating casing to house its blade and/or motor, the fan further having two fan air intakes are at both side of its isolating casing.
Non axial type fan such as centrifugal fan is preferred over an axial type fan to changes the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air, in such case, the unwanted phenomena that the air flow volume of drawing the polluted air from a first region to a second region is diminished due to the air resistance within the third region can be prevented.
The air purification method described wherein the primary filter is filter for particulate pollutant removal, or for larger size particulate pollutant removal； further the primary filter is a filter includes at least any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate and titanium dioxide, silver, filter for particulate pollutant removal, or for larger size particulate pollutant removal.
In one embodiment, the primary filter is a bi-layer filters includes a large size particle removal filter, and a gases pollutants removal filter； wherein the gases pollutants removal filters includes honeycomb structure therein, housing adsorbing materials for removal of the gases pollutants, the primary filter is disposed upright in position, so that the honeycomb structure acting as air channel for laminar air to pass through it.
The air purification method described wherein the polluted air and the partial-cleaned-air are laminar air flows； the perpendicular-partial-cleaned-air is a laminar flow； the concentrated-partial-cleaned-air is a turbulent air flow.
The air purification method described wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driven to flow straight without changing its  direction.
The air purification method described wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow perpendicular to the original direction of the concentrated-partial-cleaned-air.
The air purification method described the portion of the concentrated-partial-cleaned-air which being driven to flow perpendicular to the original direction of the concentrated-partial-cleaned-air is larger than the portion of the concentrated-partial-cleaned-air are driven to flow straight without changing its direction.
The air purification method described wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow in two ways perpendicular to the original direction of the concentrated-partial-cleaned-air； the two ways flows are opposite to each other.
The air purification method described wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow in four ways perpendicular to the original direction of the concentrated-partial-cleaned-air； the four ways flows are in 90 degree relation to one and another.
The air purification method described the main filter form the peripheral of the third region.
The air purification method described wherein the third region houses an ionizer.
The air purification method described wherein the main filter is a particulate filter for removing particulate matter in the dimension of less than 10 micron meter.
The air purification method described wherein the main filter is a particulate filter for removing particulate matter in the dimension of less than 2.5 micron meter.
The air purification method described wherein the main filter is a HEPA filter.
The air purification method described wherein the main filter is a filter includes any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate, titanium dioxide, silver.
The air purification method described wherein the third region houses a device to generate the acoustic wave； the acoustic wave will be in low to medium frequency； the acoustic wave increases the travel distance of the particulate pollutants within the third region, and/or in the filter media of the main filter, which would make the particulate pollutants to be more easier to be captured by the filter media； the acoustic wave further enhance the turbulence diffusion effect on the particulates pollutants by the main filter, the acoustic wave further generate additional frictional electrostatic charges on the filter media to capture the particulates pollutants.
The air purification method described wherein the third region houses a UV lamp, the UV lamp is a UV sterilizer with specific wavelength and functions as bactericide and fungicide.
In the air purification method, wherein the first region and the second region align in the same horizontal level, which are in lower level vertically compare to the third and the forth region； the forth region align above the third region.
The present disclosure further illustrated a method of air purification, wherein in a laminar air flow creates by a non-axial fan, remove a portion of the pollutants from a polluted air through a primary filter and forming a laminar flowing partial-cleaned-air； by the further action of the non-axial fan, changes the direction of the laminar flowing partial-cleaned-air to a laminar flow perpendicular-partial-cleaned-air, which the direction of it is perpendicular to the original direction of the laminar flowing partial-cleaned-air； expels the laminar flow perpendicular -partial-cleaned-air into a pollutant concentrating chamber and convert the laminar air flow nature of the perpendicular-partial-cleaned-air to a concentrated-partial-cleaned-air； the pollutant concentrating chamber provides a space to concentrates the pollutants level of the air. The sudden concentrated of the pollutants level in the fourth region creates the influences  of increasing the residence time of the pollutants within the pollutant concentrating chamber so that it is more easier to be arrested by the filter media of the main filter； enhancing the turbulence diffusion effect on the pollutants by the main filter； enhancing the chance to generate additional frictional electrostatic charges on the particulate and increase the efficiency of the main filter to capture the particulates pollutants.
As the turbulence-partial-cleaned-air has higher pollutants level compare to the pollutants level of the perpendicular-laminar-partial-cleaned-air； on further forcing the turbulence-partial-cleaned-air to pass through a main filter, a further significant big portion of the pollutants is further removed by the main filter.
The present disclosure provides an air purification apparatus with creates least static pressure drop to the air purification apparatus, retain the highest airflow, and hence the highest fan and filtering efficiency.
An air purification apparatus includes: a casing； at least one air inlet equipped with primary filter, being disposed at an upstream of the air purification apparatus, on its casing； at least one air outlet equipped with main filter, being disposed at an downstream of the air purification apparatus, on its casing； a fan includes an isolated casing to house its blade and/or its motor, being disposed in between the air inlet and the air outlet of the air purification apparatus, the fan further includes at least one fan air intake and one fan air output； a pollutant concentrating chamber (equivalent to the third region as described above) being disposed in between the fan air output and the air outlet within the casing； wherein polluted air is being drawn in to the air purification apparatus through the air inlet by the fan； the polluted air is first purified by a primary filter to become partial cleaned air. (i.e., removes a portion of the pollutants in a polluted air through drawing the polluted air from a first region to a second region on passing through the primary filter and forming a partial-cleaned-air) ； on leaving the fan, the direction of the partial cleaned air changed in an orientation which is perpendicular to the original airflow direction (i.e., changes the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan) ； the entering to the pollutant concentrating chamber, the pollutants in the air is compressed to become more concentrated (forming a concentrated-partial-cleaned-air) ,  the pollutants level is then become higher in compare to the pollutants level of the partial cleaned air. when the partial cleaned air (the concentrated-partial-cleaned-air) leaving the pollutant concentrating chamber and entering to the main filter, it becomes a completed cleaned air (i.e. driving the concentrated-partial-cleaned-air out from the third region to a forth region through a main filter as mentioned above) .
In one embodiment, at least a portion of the complete cleaned air further change its direction； the direction of a portion of the complete cleaned air is deviated from original direction of the partial cleaned air which blew out from the fan air output.
In one embodiment, the air purification apparatus includes two air inlets； the two air inlets located at the two opposite sides of the casing； two regions of polluted air are drawn to flow into the air purification apparatus separately through the two air inlets. The pollutant concentrating chamber provides a space to well-mixed the partial cleaned air into uniformity nature and rectify it, or re-directs it to the main filters before being discharged from the two air outlets. Two regions of air are first drawn into the two fan air intakes of the air purification apparatus through the two air inlets, the two regions of partial cleaned air were then mixed and expelled to a pollutant concentrating chamber through the fan air output； the partial cleaned air are then forced to hit onto the main filter. At least one main filter are in an alignment perpendicular to the direction of the partial cleaned air, the portion of the partial cleaned air through exist from this main filter and be discharged out from the air purification device through the air outlet.
In one embodiment, the fan further includes two fan air intakes at two sides of its isolated casing and at least one fan air output.
In one embodiment, the fan is a centrifugal fan with two fan air intakes at both size of its isolating casing.
In one embodiment, the fan is a non-axial type fan.
In one embodiment, the planer surface of the two fan air intakes are coherence and of the same orientation to the planer surface of the two air inlets, to prevent non-uniformity airflow.
In one embodiment, the planer surface the fan air intake and the planer surface of the main filter are aligned vertically.
In one embodiment, the air purification apparatus further includes a component to convert the physical and/or chemical nature of the partial cleaned air in the pollutant concentrating chamber (the third region) . In one embodiment, the component is one or any one of the combination of the below components: an ionizer； an ozone generator； a UV sterilizer lamp； a electrostatic precipitator； a charging component； a sound generator.
The direction of at least fan air intake is perpendicular to the direction of at least one fan air output； and the planer surface of fan air intake and the planer surface of the main filter are in a perpendicular relationship
The air purification apparatus according to the present disclosure, wherein the direction of the air inlet, air outlet, fan air intake and fan air output are orientated in a way so that: no turbulent airflow will be created in between [a] the floor, the wall or the ceiling on where the air purification apparatus stood, and； [b] all air output of the fan and all air inlet and air outlet of the casing； (2) the airflow direction by the fan air intake is parallel direction to the floor the wall or the ceiling on where the air purification apparatus stood.
The air purification apparatus according to the present disclosure, wherein regardless the orientations of all air inlet (s) and air outlet (s) on the casing, the volume airflows being drawn into the fan air intake and the blew out from the fan air output will not be diminished due to the floor, the wall or the ceiling on where the air purification apparatus stood.
The air purification apparatus according to the present disclosure, wherein the direction of the airflow being blew out from the fan air output may be in one of the following orientation:
It is of different direction to planer surface of the floor, the wall or the ceiling on where the air purification apparatus stood； or
It is in opposite direction and perpendicular to planer surface of the floor, the wall or the ceiling on where the air purification apparatus stood； or
It is in parallel direction and the same direction to the planer surface of the floor, the wall or the ceiling on where the air purification apparatus stood；
The direction of the airflow being blew out from the fan air output never toward the planer surface on where the air purification apparatus stood.
The air purification apparatus according to the present disclosure, wherein it further includes: at least one primary filter for removing large size particulate be installed at the air inlets； at least one higher grade particulate removal filter as the main filter be installed at the air outlets.
The air purification apparatus according to the present disclosure, wherein it further includes: an odor removal filter, the odor removal filter be installed at the air inlets or between the air inlet and the fan air intake.
The air purification apparatus according to the present disclosure, wherein it further include an ionizer, the ionizer being installed at the downstream position of the fan air output and upstream position of the main filter. It is being installed at a pollutant concentrating chamber.
In one embodiment, the air purification apparatus includes: a double blade centrifugal fan, having two fan air intakes at both sides of the centrifugal fan, and having one fan output at the central of the centrifugal fan； wherein the planer surface of the two fan intakes are disposed vertically and the fan air output is directing upwardly, when the air purification apparatus is standing upright；
The air purification further includes: two air inlets being disposed on two side of the casing of the air purification apparatus (thereafter named “side-air-inlet” ) ； the planer direction of the two side-air-inlets are in same directions as the planer orientation of the two fan air intake； and at least one air outlet being disposed on the top side of the of the air purification apparatus (thereafter named “top air outlet” ) , when it is standing upright；
The air purification apparatus further includes two air outlets being disposed two sides of the of the air purification apparatus (thereafter named “side-air-outlet” ) , when the air purification apparatus is standing upright； the two side-air-outlets are located at an upper vertical position than the two side-air-inlets； the side-air-inlets and the side-air-outlets are in perpendicular to each other when they are viewed from the top view of the air purification apparatus.
The air purification further includes two primary filters for removing large size particulate be installed at the two air inlets respectively, and higher grade particulate removal filters and/or gases phase removal filters are being installed at the air outlets respectively.
In one embodiment, the air purification apparatus further includes at least a supporting stand or caster wheel so that the whole Air purification apparatus can be stood on floor, or be hanged on wall or ceiling through the supporting stand or caster wheels.
In one embodiment, the air purification apparatus, at least one planer surface of the fan air intake is perpendicular to one of the following components of the air purification apparatus, when viewing from the top of the air purification apparatus at when it is placing upright: the side air outlets； the top air outlets； the main filters placing at the air outlet.
It is not necessary the planer surface of the air inlet be in the same orientation or be paralleled to the planer surface of the fan air intake, it is also not necessary the planer surface of the air outlet be in the same orientation with or parallel to the planer surface to the fan air output； nevertheless
In one embodiment of the air purification apparatus, wherein it further includes an ionizer, the ionizer being installed at the downstream position of the fan, upstream position of the air outlet.
In one embodiment, the air purification apparatus further include: a first housing section and a second housing section； at least a casing； a pollutant concentrating chamber； wherein the first housing section and the second housing section are disposed within the casing； wherein the air inlet and the fan, and the second region are located at the first housing section； a pollutant concentrating chamber (i.e., the third region) , the main filter and the air outlet are disposed at the second housing section； the first and the forth regions are located outside the air purification apparatus.
The second housing section is located upper vertically over the first housing section.
In one embodiment, the first region is a region outside the casing of the air purification apparatus, and the second region is a region inside the casing of the air  purification apparatus； wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
In another embodiment, the first region is a region outside the casing of the air purification apparatus, the second region is a region inside the casing of the air purification apparatus (which is behind/downstream of the primary filter) , the second region is located outside the isolating casing of the fan； wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
In another embodiment, the first region is a region outside the casing of the air purification apparatus, the second region is a region behind (downstream of) the fan air intake, however upstream of the fan blades； wherein, the direction of the polluted air from the first region drawing to the second region and become partial-cleaned-air will not be changed.
On changing the airflow direction of the partial-cleaned-air to a perpendicular air flow, the rotational movement of the particulates within the partial-cleaned-air in the original direction will be changed suddenly. Further a sudden collision will be induced to happen in between the particulate pollutants within the partial-cleaned-air. This generates a certain frictional electrostatic charges onto some of the particulates pollutants. Eventually, the particulates with electrostatic charges will cluster with the particulates without electrostatic charges to grow into a bigger sizes particulates pollutants, which will enhances the chance of being arrested by the main filter in the later stage.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates in an embodiment, the first region and the second region is completely separated by the primary filter.
FIG. 2 illustrates in another embodiment, the air purification apparatus described wherein the first region and the second region is partially separated by the primary filter.
FIG. 3 indicates the schematic diagram of one air purification apparatus in another embodiment.
FIG. 4 indicates the schematic diagram of one air purification apparatus in another embodiment.
DESCRIPTION OF EMBODIMENTS
FIG. 1 illustrates in an embodiment 10, the first region 1000 and the second region 2000 is completely separated by the primary filter 108. The primary filter is being hold at one air inlet 210 of the casing 200 of the embodiment. The region 1000 at one side of the primary filter, which is the environment nearby around the air purification apparatus, is being defined as the first region. The region at the other side of the primary filter, which is within the casing of the air purification apparatus, it is the second region 2000. The second region is upstream of all other components 900 in the air purification apparatus 10.
FIG. 2 illustrated the air purification apparatus wherein the first region 1000 and the second region 2000 is partially separated by the primary filter 108. In this embodiment, the primary filter 108 is in form of a hollow cylinder, wherein at one end of the hollow cylindrical primary filter 108, it is attached with a fan 208, the fan 208maybe a counter-flow fan208 in another embodiment； at the other end of the hollow cylindrical primary fan, it include at least an opening. The region at the cavity within the hollow cylindrical primary filter 108 is being regarded as the second region 2000. The region 1000 surround the hollow cylindrical primary filter, which is also the environment nearby around the air purification apparatus, is being defined as the first region 1000. Air at the first region 1000 and the second region 2000 can be communicated with each other through the opening 406 at one end of the said hollow cylindrical primary filter 108 (or the air at the first region 1000 and the second region 2000 are transferrable to each other through the said opening 406 ) . When the fan blow out air 500 is to pass by the hollow section of the cylindrical filter 108, it will created a Bernoulli Effect and/or a Venturi Effect, within the hollow cylindrical primary filter 108, or at the region close to the  opening 406 at one side of the hollow cylindrical primary filter. The polluted air520, from the first region 1000 to the second region 2000, through the primary filter 108 and become partial-cleaned-air 530.
FIG. 3 indicates an air purification apparatus 10 in one embodiment includes: a casing in three parts (top) 100 (middle) 200 (bottom) 300； wherein in another embodiment the casing maybe a whole piece instead of split into three parts. The three part of the casing are connected together by locks 101 201, they are detachable into and be resembled with an additional unit, so that the casing is connected in a sequence as one top unit 100； multiple middle units 200； and one bottom unit 300. air inlet 210 having equipped with a primary filter108, being disposed at an upstream of the air purification apparatus, on its casing 200； air outlet 220 equipped with main filter 222, being disposed at an downstream of the air purification apparatus, on the two side of its casing 200； a fan 208 includes an isolated casing to house its blade and motor, being disposed in between the air inlet 210 and the air outlet 220 of the air purification apparatus 10, the fan 208 further includes fan air intake 205 and one fan air output 206； in the current embodiment, the fan is a double blade centrifugal fan with two fan intakes at both sides； a pollutant concentrating chamber400 being disposed in between the fan air output 206 and the air outlet 220 within the casing 200.
The first region 1000 is the region upstream the primary filter108. It is also the region at one side of the primary filter, which is the environment nearby around the air purification apparatus. The second region 2000 is the region which is right downstream the primary filter.
The third region 3000 is the region is where the pollutant concentrating chamber located, the forth region 4000 is a region right downstream of the main filter.
Wherein polluted air is being drawn from the first region 1000, from the environment surrounding the air purification apparatus, into the second region 2000 of the air purification apparatus10 through the air inlet 210 by the fan 208； the polluted air is preliminary cleaned by the primary filter to become partial cleaned air； on entering to the pollutant concentrating chamber 400 of the third region 3000, the direction of the partial cleaned air first changed once by the fan 801, from the vector in the x direction, to  the vector in the z direction； when the partial cleaned air leaving the pollutant concentrating chamber 400of the third region 3000 and entering to the main filter 222 to become a completed cleaned air at the forth region 4000, at least a portion of the complete cleaned air further change its direction； the direction of a portion of the complete cleaned air is deviated from original direction (which is in the z direction) of the partial cleaned air which blew out from the fan air output, a portion of the completed cleaned air (802a) is now flowing in the y direction on existing the main filter at both sides of the casing 200.
FIG. 3 further indicates the structure of the air purification apparatus 10 are assembled in a way that it includes three casing, the top 100, body 200 and base 300 casings from a complete singe-unit-device, a complete Air purification apparatus. They are hold together in position by locks 101 &201.
Two air inlets 210 (one in the front and one at the back) and three air outlet (two at left and right 220) and one at top 110 on a  casing  100, 200, 300. Three main filters 111 &222 be installed at the  air outlet  220, 110 on the casing.
One fan 208 being installed within the casing between the air inlet 210 and air outlet 110 220, the fan having two fan air intakes 205 (at the front side and back side) and one fan air output 206. The fan 208 is a double blade centrifugal fan, having two fan air intakes at both sides and having one fan output at the central of it. The fan 208 is having an isolate casing housing its blade and motor. The direction of the fan air intake 205 is perpendicular to the direction fan air output 206.
All the fan air intake 205 are perpendicular to the planer surfaces of the main filters 111 &222, which are located at the air outlets 110 220. (Refer to the vector direction as shown, the direction of the fan air intakes is of X vector, it is perpendicular to the planer surface of the main filter 111 in Z vector, it is also perpendicular to the planer surface of the main filter 220 in Y vector ) .
In this air purification apparatus, the two air inlets 210 (i.e., two side-air-inlets) being disposed on two side of the casing of the air purification apparatus 10； the planer direction of the two side-air-inlets 210 are in same directions and orientation as the planer orientation of the two fan air intake 205. Primary filters may be  disposed at the air inlets 210. Further, the two side-air-outlets 220 are located at an upper vertical position than the two side-air-inlets 210；
Four supporting stands (in the form of four wheels 310) for the  casing  100, 200, 300 so that the whole air purification apparatus10 can be stood on floor.
The orientation of the air inlet 210, air outlet 220, air intake 205 and air output 206 should be customized in a way that the air flow in and/or flow out from the air inlet 210, air outlet 220, air intake 205 and air output 206should meet the following criteria: (1) no turbulent airflow will be created in between [a] the floor, the wall or the ceiling on where the air purification apparatus stood, and； [b] all air output of the fan and all air inlet and air outlet of the casing； (2) the airflow direction 801 by the fan air intake is parallel direction to the floor the wall or the ceiling on where the air purification apparatus stood (the air flow 801 in the vector of x and it is parallel to the flow in the x-y plan) .
The air purification apparatus, wherein, regardless the orientations of all air inlet (s) 210 and air outlet (s) 220 on the casing 200, the volume airflows being drawn into the air intake 205 and the blew out from the air output 206 of the fan 208 will not be diminished due to the floor, the wall or the ceiling on where the air purification apparatus stood.
In this example of the air purification apparatus 10, the airflows 802a, 802b being blew out from the fan air output 206 of the fan 208 is in opposition direction to planer surface the floor on where the air purification apparatus 10 stood, the airflow 802b is in opposite and perpendicular to direction to the floor on where the air purification apparatus stood (refer to the direction, the airflow 802b and the floor are in Z and X-Y planar correlation) .
The airflow 802a being blew out from the fan air output 206 is in parallel to and the same direction (which is parallel to) to the planer surface of the floor on where the air purification apparatus stood (refer to the direction, the airflow 802a and the floor are in Y and X-Y planar correlation) .
The air purification apparatus 10, wherein it further includes: an odor removal filter, the odor removal filter is installed at the air inlets 210 or between the air  inlet 210 and the air intake 205.
The air purification apparatus, wherein it further includes an ionizer, the ionizer being installed at the downstream position of the fan, which is between the air outlet 206 and the  air outlet  110, 220. More specifically, the ionizer is located in the pollutant concentrating chamber400.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the scope or spirit of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects illustrative and not restrictive
As illustrated by FIG. 4, the air purification apparatus40 in the present disclosure may further includes: a first housing section 1008 and a second housing section 2008； the casing 100 200 300； a pollutant concentrating chamber 400； wherein the first housing section 1008 and the second housing section 2008are disposed within the casing 200； wherein the air inlet 210 (which equipped with primary filter) and the fan 208 are located at the first housing section 1008； the pollutant concentrating chamber 400, the main filters 111 222 and the air outlets 220 are disposed at the second housing section 2008；
The second housing section 2008 is located upper vertically over the first housing section 1008.
FIG. 3 and 4 further illustrates the air purification method in the present disclosure includes: removing a portion of the pollutants in a polluted air 801 through a primary filter which is equipped at the air inlet 210, by drawing the polluted air from a first region with an atmospheric pressure equal to that of the surrounding environment to a second region with an atmospheric pressure lower than that of the surrounding environment on passing through the primary filter, forming a partial-cleaned-air； changing the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan； the airflow direction of the perpendicular-partial-cleaned-air is perpendicular to the original air flow direction of the partial-cleaned-air； after the conversion of the direction of the partial-cleaned-air to the  perpendicular-partial-cleaned-air, the perpendicular-partial-cleaned-air are blown to a third region to become concentrated-partial-cleaned-air, wherein pressure within the third region is higher than the atmospheric pressure of the surround environment； driving the concentrated-partial-cleaned-air out from the third region to a forth region on passing through a main filter, wherein, the forth region with an atmospheric pressure equal to that of the surrounding environment.
On driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow perpendicular to the original direction of the concentrated-partial-cleaned-air (802a) ； a portion of the concentrated-partial-cleaned-air are driven to flow straight (802b) without changing its direction.

Claims (19)

  1. An air purification method, comprising:
    removing a portion of the pollutants in a polluted air through drawing the polluted air from a first region to a second region on passing through the primary filter and forming a partial-cleaned-air；
    changing the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-air by allowing the partial-cleaned-air to be draw or blow by a fan； the airflow direction of the perpendicular-partial-cleaned-air is perpendicular to the original air flow direction of the partial-cleaned-air；
    blowing the perpendicular-partial-cleaned-air to a third region to concentrate the pollutant’s level of the perpendicular-partial-cleaned-air； and
    forming a concentrated-partial-cleaned-air, driving the concentrated-partial-cleaned-air out from the third region to a forth region through a main filter.
  2. The air purification method according to claim 1, wherein the first region with an atmospheric pressure equal to that of the surrounding environment, the second region with an atmospheric pressure lower than that of the surrounding environment； the atmospheric pressure within the third region is higher than the atmospheric pressure of the surround environment； the forth region with an atmospheric pressure equal to that of the surrounding environment.
  3. The air purification method according to claim 1, wherein a non-axial fan is used to draw the polluted air from the first region and the second region.
  4. The air purification method according to claim 3, wherein the non-axial type fan is a centrifugal fan.
  5. The air purification method according to claim 1, wherein the fanto change the direction of the partial-cleaned-air to a perpendicular-partial-cleaned-airis a double blade centrifugal fan contains an isolating casing to house its blade and/or motor, the fan further having two fan air intakes are at both side of its isolating casing.
  6. The air purification method according to claim 1, wherein the polluted air and the partial-cleaned-air are laminar air flows； the perpendicular-partial-cleaned-air is a laminar flow； the concentrated-partial-cleaned-air is a turbulent air flow.
  7. The air purification method according to claim 1, wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driven to flow straight without changing its direction.
  8. The air purification method according to claim 1, wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow perpendicular to the original direction of the concentrated-partial-cleaned-air.
  9. The air purification method according to claim 1, wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow at least in two ways, which are perpendicular to the original direction of the concentrated-partial-cleaned-air.
  10. The air purification method according to claim 9, wherein the two ways flows are opposite to each other or the two ways flow are in 90 degree relation to one and another.
  11. The air purification method according to claim 1, wherein on driving the concentrated-partial-cleaned-air out from the third region to a forth region, a portion of the concentrated-partial-cleaned-air are driving to flow in four ways perpendicular to the original direction of the concentrated-partial-cleaned-air； the four ways flows are in 90 degree relation to one and another.
  12. The air purification method according to claim 1, the main filter forming the peripheral of the third region.
  13. The air purification method according to claim 1, wherein the third region houses any one or more than one of the following devices: an ionizer, a UV lamp, a device to generate the acoustic wave.
  14. The air purification method according to claim 1, wherein the main filter comprises at least one of the following filter type:
    (a) a particulate removal filter；
    (b) a gases removal filter comprises any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate and titanium dioxide, silver； or
    (c) a bactericide filter comprises any one or more than one of the follow element and/or materials: activated carbon, iodide, iodine, potassium permanganate and titanium dioxide, silver.
  15. The air purification method according to claim 1, wherein the first region and the second region align in the same horizontal level, which are in lower level vertical position in comparing to the third and the forth region； the forth region either align above the third region and/or align in the same horizontal level as the third region.
  16. An air purification apparatus, comprising:
    (a) a casing；
    (b) at least one air inlet equipped with the primary filter, being disposed at an upstream of the air purification apparatus, on its casing；
    (c) at least one air outlet equipped with main filter, being disposed at an downstream of the air purification apparatus, on its casing；
    (d) a fan comprises an isolated casing to house its blade and/or its motor, being disposed in between the air inlet and the air outlet of the air purification apparatus, the fan further comprises at least one fan air intake and one fan air output；
    (e) a pollutant concentrating chamber being disposed in between the fan air output and the air outlet within the casing；
    wherein polluted air is being drawn in to the air purification apparatus through the air inlet by the fan； the polluted air is first purified by a primary filter to become partial cleaned air； on leaving the fan, the direction of the partial cleaned air changed in an orientation which is perpendicular to the original airflow direction； the entering to the pollutant concentrating chamber, the pollutants in the air is compressed to become more concentrated, the pollutants level is higher compare to the pollutants level of the partial cleaned air.
  17. An air purification apparatus according to claim 16, wherein when the partial cleaned air leaving the pollutant concentrating chamber and entering to the main filter to become a completed cleaned air, at least a portion of the complete cleaned air further change its direction； the direction of a portion of the complete cleaned air is deviated from original direction of the partial cleaned air which blew out from the fan air output.
  18. An air purification apparatus according to claim 16, wherein
    the fan is a double blade centrifugal fan, having two fan air intakes at both sides of the double blade centrifugal fan, and having one fan output at the central of the centrifugal fan； wherein the planer surface of the two fan intakes are disposed vertically and the fan air output is directing upwardly or forwardly； the air purification apparatus further comprises: two air inlets being disposed on two side of the casing of the air purification apparatus (thereafter named “side-air-inlet” ) ； the planer direction of the two side-air-inlets are in same directions as the planer orientation of the two fan air intake； and at least one air outlet being disposed on the top side of the of the air purification apparatus (thereafter named “top air outlet” ) .
  19. An air purification apparatus according to claim 18, wherein further comprises two air outlets being disposed two sides of the of the air purification apparatus (thereafter named “side-air-outlet” ) ； the two side-air-outlet are located at an upper vertical positions than the two side-air-inlets； the side-air-inlets and the side-air-outlets are in perpendicular to each other when they are viewed from the top view of the air purification apparatus.
PCT/CN2016/102145 2015-10-14 2016-10-14 Air purification method and apparatus WO2017063584A1 (en)

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