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WO2020196973A1 - Purificateur d'air ayant un filtre à poussière fine mobile monté sur celui-ci - Google Patents

Purificateur d'air ayant un filtre à poussière fine mobile monté sur celui-ci Download PDF

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Publication number
WO2020196973A1
WO2020196973A1 PCT/KR2019/003982 KR2019003982W WO2020196973A1 WO 2020196973 A1 WO2020196973 A1 WO 2020196973A1 KR 2019003982 W KR2019003982 W KR 2019003982W WO 2020196973 A1 WO2020196973 A1 WO 2020196973A1
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WIPO (PCT)
Prior art keywords
filter
composite filter
fine dust
air
metal precursor
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Ceased
Application number
PCT/KR2019/003982
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English (en)
Korean (ko)
Inventor
최원산
한나라
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Industry Academic Cooperation Foundation of Hanbat National University
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Industry Academic Cooperation Foundation of Hanbat National University
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Publication of WO2020196973A1 publication Critical patent/WO2020196973A1/fr
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Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
    • B01D46/0056—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with rotational movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Definitions

  • the present invention relates to a fine dust filter and an air purifier equipped with the same, and more specifically, a composite filter that exhibits excellent fine dust removal efficiency and is reusable as a mobile filter, maintains a low pressure drop even at a high flow rate, It relates to a high-performance air purifier capable of removing dust.
  • PM Particulate Matter
  • PM10 for aerodynamic particle diameter of 10 ⁇ m
  • PM2 for ultrafine dust of 2.5 ⁇ m or less Classified as .5.
  • a pre-filter In order to remove fine dust, various filters such as a pre-filter, a carbon filter, a HEPA filter (High Efficiency Particulate Air Filter, HEPA), and a fiber-structured polar membrane have been developed.
  • HEPA filter High Efficiency Particulate Air Filter, HEPA
  • fiber-structured polar membrane In order to remove fine dust, various filters such as a pre-filter, a carbon filter, a HEPA filter (High Efficiency Particulate Air Filter, HEPA), and a fiber-structured polar membrane have been developed.
  • HEPA filter High Efficiency Particulate Air Filter, HEPA
  • the fine dust filter developed to date has a disadvantage in that it must undergo a high-energy precision process in the manufacturing and processing process.
  • the filter does not permanently remove fine dust, but only collects fine dust, and there is a problem in that the efficiency of removing fine dust decreases after a certain time. Specifically, as the amount of fine dust collected by the filter increases, the removal efficiency of the filter remains and the removal efficiency decreases, and as a result, there is an economic problem that must be replaced with a new filter.
  • conventional fine dust filters are all fixed filters that are fixed inside the air purifier, and when air is introduced into the filter, the flow of air is obstructed by the fixed filter, resulting in a high pressure drop of several hundreds Pa.
  • An object of the present invention is to provide a composite filter having excellent fine dust (PM10) and ultrafine dust (PM2.5) removal efficiency, and exhibiting high fine dust removal efficiency even when washed and reused, and a manufacturing method thereof.
  • an object of the present invention relates to an air purifier comprising a movable filter, maintaining a low pressure drop, and capable of rapidly removing fine dust and at the same time having a high fine dust removal efficiency.
  • the present invention for achieving the above object comprises the steps of: a) adding a filter substrate to an aqueous metal precursor solution to etching and simultaneously coating the metal precursor; And b) reducing the metal precursor coated on the filter substrate to metal particles.
  • the filter base material may be a melamine resin foam.
  • the metal precursor may be a hydroxide, halide, or nitric oxide of any one or two or more metals selected from precious metals.
  • the metal precursor may be a mixed precursor of silver, platinum, and palladium precursors.
  • the content of the solid content of the metal precursor in the aqueous metal precursor solution may be 1 to 300 ⁇ M.
  • the etching in step a) may be characterized in that the filter substrate is etched into a spherical shape.
  • a step of hydrophilic treatment and magnetic treatment on the filter substrate coated with metal particles may be further included.
  • the present invention provides a composite filter in which any one or two or more mixed metal particles selected from silver, platinum and palladium are coated on the etched surface.
  • the composite filter may be hydrophilic and magnetically treated.
  • the composite filter may have a removal efficiency of 85% or more of fine dust (PM10) and ultrafine dust (PM2.5).
  • the composite filter may be characterized in that it has a spherical shape having a diameter of 1 to 500 mm.
  • the present invention provides an air purifier comprising the composite filter as a filter for air purification.
  • the air purifier includes an air inlet, a chamber mounted with the composite filter, and an air outlet, and the composite filter may be a movable filter having fluidity by the flow of incoming air.
  • the air purifier may be of a lotto machine type, characterized in that the composite filter is rotated by incoming air.
  • the air purifier may be capable of removing fine dust (PM10) and ultrafine dust (PM2.5) at a filter speed of 1.0 m/s or more in a pressure drop ( ⁇ P) of 50 Pa or less. have.
  • the fine dust filter according to the present invention has the advantage of excellent removal efficiency for fine dust (PM10) and ultrafine dust (PM2.5), excellent elasticity and mechanical properties, and can be washed and reused.
  • the fine dust filter according to the present invention has fluidity by air and can be applied as a movable filter, so that the pressure drop generated in the filter is low.
  • the air purifier including the fine dust filter according to the present invention has the advantage of not only being able to remove fine dust at high speed at a low pressure drop ( ⁇ P) of 50 Pa or less, but also remarkably improving air quality within a short time.
  • FIG. 1 is a flow chart of a method for manufacturing a composite filter according to an aspect of the present invention.
  • FIG. 2 is a schematic diagram of a lottery machine-type mobile air purifier according to an aspect of the present invention.
  • FIG. 3 is a visual photograph of an etched foam according to an aspect of the present invention.
  • FIG. 4 is a naked eye photograph of a composite filter according to an aspect of the present invention.
  • SEM scanning electron microscope
  • EDS 6 is an energy dispersive spectrum (EDS) analysis result of a composite filter according to an embodiment of the present invention.
  • FIG. 7 is a visual photograph of a lottery machine-type mobile air purifier according to an aspect of the present invention.
  • FIG. 8 is a graph showing the fine dust and ultrafine dust removal efficiency of the composite filter according to an aspect of the present invention.
  • FIG. 9 is a graph showing fine dust and ultrafine dust removal efficiency according to the size of a composite filter according to an embodiment of the present invention.
  • FIG. 10 is a graph of measuring electrostatic voltage of a composite filter according to an embodiment of the present invention.
  • FIG. 11 is a graph showing fine dust and ultrafine dust removal efficiency according to repeated use of a composite filter according to an aspect of the present invention.
  • the present invention relates to a method of manufacturing a composite filter that has excellent removal efficiency for fine dust (PM10) and ultrafine dust (PM2.5) and can be used as a mobile filter, and specifically, a) a filter base material in an aqueous metal precursor solution Coating the metal precursor at the same time as the input and etching; And b) reducing the metal precursor coated on the filter substrate to metal particles.
  • PM10 fine dust
  • PM2.5 ultrafine dust
  • step a) as the filter substrate is added to the aqueous metal precursor solution and stirred, the metal precursor etch the filter substrate, and at the same time, the filter substrate in which the metal precursor is etched. It can be coated on the surface of.
  • a composite filter coated with metal particles may be manufactured.
  • the filter substrate may be used without limitation as long as it is a known filter material capable of adsorbing and removing pollutants in the air such as dust, fine dust, and ultrafine dust, and specifically, for example, cotton fiber And it may be any one or a mixture of two or more selected from the resin foam.
  • the resin foam for example, it is selected from polyurethane foam, urea foam, polyvinyl chloride foam, polypropylene foam, polyethylene foam, polyvinyl acetate foam, melamine resin foam, phenol resin foam, and foams of derivative resins thereof. Any one or two or more to be laminated or bonded may be mentioned, but the present invention is not limited thereto.
  • a melamine resin foam may be preferably used, and most preferably, a melamine formaldehyde foam may be used as the melamine resin foam.
  • the shape of the melamine formaldehyde foam may be in the form of cloth or cloth, preferably in the form of a sponge, but is not limited thereto.
  • the melamine resin foam may be effectively etched by a metal precursor in step a), and may exhibit elastic and mechanical properties suitable as a filter material for air cleaning.
  • step b) by coating metal particles on the etched surface of the melamine resin foam through step b) afterwards, the effect of adsorbing fine dust and ultrafine dust is improved, thereby having excellent removal efficiency.
  • the amount of contaminants adsorbed to the filter increases over time and the performance of the filter decreases.
  • the composite filter of the present invention made of the melamine resin foam it can be washed and reused. Excellent effect of maintaining high removal efficiency even after reuse.
  • the metal precursor is to increase the surface area of the filter substrate by etching, that is, removing a part of the filter substrate, and to improve the adhesion of the coated metal, and any one or two or more metals selected from precious metals It may be a hydroxide, a halide, or a nitrate, but is not limited thereto.
  • the metal precursor may include silver, gold, platinum, palladium, magnesium, copper, nickel, zirconium, etc., preferably, a hydroxide of any one or two or more metals selected from silver, platinum and palladium ,
  • the filter substrate may be etched using an aqueous solution of halide or nitric oxide and coated with a metal precursor.
  • any one or a mixture of two or more selected from silver nitrate, platinum hydrochloric acid and palladium nitrate may be used, and in this case, not only the filter substrate can be etched more effectively, but also the filter It is very easy to be coated on the surface of the substrate.
  • the metal precursor of the present invention most preferably, three different mixed precursors of silver, platinum, and palladium may be used, and the filter substrate may be etched into a spherical shape by using the three types of mixed precursors.
  • the filter substrate introduced in step a) has an excellent effect of being etched in a spherical shape.
  • the manufactured composite filter may be manufactured as a spherical composite filter coated with metal particles.
  • the etching in step a) is characterized in that the filter substrate is etched into a spherical shape.
  • step a) of the present invention may prepare a composite filter etched in various forms by etching the filter substrate as a metal precursor.
  • a metal precursor three different mixed precursors of silver, platinum and palladium When using, it is possible to manufacture a composite filter of a spherical shape.
  • the surface area of the composite filter is improved, so that a larger amount of contaminants, that is, fine dust and ultrafine dust, is adsorbed and removed, thereby remarkably increasing the removal efficiency.
  • the spherical composite filter when applied to an air purifier, the spherical filter is easily rotated by the flow of air introduced into the air purifier, so that fine dust can be quickly removed as a mobile filter.
  • the melamine resin foam of the present invention in the case of etching using the melamine resin foam of the present invention as a filter substrate, it can be manufactured as a spherical composite filter having various sizes, and it maintains high removal efficiency due to excellent elasticity and impact resistance and can be used for a long time, so it is economical to be.
  • the filter of is a spherical mobile filter that can operate at low pressure drop and can filter at high speed without deteriorating removal efficiency.
  • the content of the metal precursor solid content in the metal precursor aqueous solution may be 1 to 300 ⁇ M, specifically 2 to 100 ⁇ M, more specifically 5 to 60 ⁇ M, and the pH of the metal precursor aqueous solution is pH It may be 1 to 7, specifically pH 2 to 5, but is not limited to the above range.
  • the method of introducing the filter substrate into the aqueous metal precursor solution is specifically, the filter substrate cut into a cube shape of 1 to 500 mm, specifically 1 to 50 mm. 1 to 100 may be immersed in 50 to 1,000 mL of the metal precursor aqueous solution, for example, dipping, spraying, immersing, quenching, etc., may be brought into contact with the surface of the filter substrate. Means all the way.
  • the method of etching the filter substrate may be specifically, stirring the filter substrate in an aqueous metal precursor solution at a temperature of 10 to 60°C for 1 to 96 hours, specifically at a temperature of 20 to 40°C for 24 to 72 hours. It is not limited. By etching the filter substrate in the above temperature and time range, it is easy to manufacture a regular spherical composite filter.
  • step b) of the present invention is a step of reducing the metal precursor coated on the surface of the filter substrate etched in step a) into metal particles, and may be performed by a reduction method using a known reducing agent.
  • reducing agent for example, sodium borohydroride, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol ( dipropylene glycol), propandiol, and alcohols such as butanediol, and an aqueous solution of any one or a mixture of two or more selected from aldehydes such as formaldehyde, but is not limited thereto.
  • the content of the reducing agent solid content in the reducing agent aqueous solution may be 0.1 to 20 mM, specifically 1 to 10 mM, but is not limited thereto.
  • a step of hydrophilic treatment and magnetic treatment to the composite filter coated with metal particles may be further included.
  • the composite filter in which the metal particles are coated on the surface etched through the steps a) and b) includes the hydrophilic treatment and magnetic treatment, thereby imparting hydrophilicity and magnetism to the surface.
  • hydrophilic treatment for example, any one or a mixture of two or more selected from polyethylene glycol having a weight average molecular weight of 100 to 1,000 g/mol, specifically 200 to 500 g/mol is used. It may be used to impart hydrophilicity to the surface of the composite filter, and preferably ethylene glycol may be used.
  • iron particles may be coated on the surface of the composite filter to provide magnetism.
  • the hydrophilic and magnetic treatment method for example, after dissolving a known iron precursor and a reducing agent thereof in the fluid, heat treatment at a high temperature of 150 to 250° C. for 1 to 12 hours, washing and drying it, Particles can be obtained. Subsequently, after dispersing the hydrophilic magnetic particles in ethanol, the previously prepared composite filter may be added and subjected to ultrasonic treatment for 1 to 60 minutes, specifically 10 to 30 minutes to impart hydrophilicity and magnetism to the composite filter, but is limited thereto. It does not become.
  • the iron precursor and the reducing agent are not particularly limited, but preferably, a hydrate of known iron halide such as ferric chloride and ferric bromide may be used as the iron precursor, and sodium acetate may be used as the reducing agent. have.
  • the solid content of the iron precursor and the reducing agent may be 1 to 20 parts by weight, specifically 2 to 10 parts by weight, respectively, based on 100 parts by weight of the fluid, but is not limited thereto.
  • fine dust and ultrafine dust are polar and have a property of attracting water vapor in the air.
  • the filter due to the hydrophilic magnetic particles The polar property of is improved and the effect of adsorbing fine dust is excellent.
  • the surface roughness of the composite filter is increased, and the amount of fine dust and ultrafine dust adsorbed on the composite filter is remarkably improved, thereby exhibiting a higher removal efficiency.
  • the hydrophilic and magnetically treated composite filter of the present invention has excellent adsorption effect of fine dust and ultrafine dust due to electrostatic attraction, specifically, the electrostatic voltage is 400 V or more, more specifically 500 V to 800 V. As the voltage is displayed, the adsorption performance of fine dust is very good.
  • the composite filter when used as a mobile air purifier filter, a large amount of fine dust can be adsorbed to the filter at a high speed without an increase in pressure drop, so that a high-speed and high-performance air purifier can be implemented.
  • iron particles exhibit magnetism, there is an advantage that can be applied to various fields such as separation membranes in addition to air purification filters.
  • the present invention relates to a composite filter manufactured by the above manufacturing method and coated with one or two or more mixed metal particles selected from silver, platinum, and palladium on the etched surface.
  • the composite filter according to the present invention is a composite filter in which the metal particles are coated on an etched surface, and has excellent fine dust (PM10) and ultrafine dust (PM2.5) removal efficiency, and high fine dust removal even when washed and reused It has the advantage of showing efficiency.
  • the substrate of the composite filter for example, it is selected from polyurethane foam, urea foam, polyvinyl chloride foam, polypropylene foam, polyethylene foam, polyvinyl acetate foam, melamine resin foam, phenol resin foam, and foams of derivative resins thereof. Any one or two or more may be laminated or bonded, preferably melamine resin foam, more preferably melamine formaldehyde foam.
  • a mixed metal of silver, platinum and palladium may be coated on the surface of a spherically etched foam to form a coating layer.
  • the composite filter has the advantage of being remarkably excellent in removal efficiency by adsorbing and removing a larger amount of contaminants, that is, fine dust and ultra-fine dust, and enabling the filter at high speed without deteriorating the removal efficiency even at a low pressure drop.
  • the composite filter may be hydrophilic and magnetically treated.
  • the filter of the present invention is hydrophilic and magnetically treated to further include a hydrophilic and magnetic layer in the filter, the filter has remarkably excellent ability to adsorb fine dust by electrostatic attraction, and the electrostatic voltage is improved, resulting in a large amount at a high speed. It has the advantage of adsorbing fine dust.
  • the composite filter according to the present invention may have a removal efficiency of 85% or more, specifically 95% or more, and more specifically 99% or more of the fine dust PM10 and the ultrafine dust PM2.5.
  • the removal efficiency may be calculated according to Equation 1 below.
  • Removal efficiency (%) [(fine dust concentration before filter-fine dust concentration after filter)/fine dust concentration before filter] X 100
  • the composite filter may have various sizes and shapes, preferably 1 to 20 mm, specifically may be a spherical one having a diameter of 2 to 10 mm.
  • the size is the filter substrate to be input
  • the present invention relates to an air purifier comprising the composite filter as an air purification filter.
  • the air purifier of the present invention includes an air inlet, a chamber equipped with a composite filter, and an air outlet, as shown in FIG. 2, and specifically, the composite filter mounted in the chamber is It may be a movable filter having fluidity by flow. In this case, the air purifier may further include a fine dust inlet through which fine dust particles collected by burning incense are introduced, but the present invention is not limited thereto.
  • the chamber may be used without limitation as long as it is capable of mounting a composite filter, and may be made of a material such as glass, plastic, metal, and ceramic.
  • the air purifier of the present invention may be of a lottery machine type, characterized in that the composite filter is rotated by incoming air.
  • the composite filter of the present invention can be applied as a mobile filter as it has fluidity by the air flow, and the spherical composite filter rotates on the surface due to the air introduced through the air inlet or fine dust inlet. It can adsorb fine dust and ultrafine dust.
  • the air purifier may be capable of removing fine dust and ultrafine dust at a filter speed of 1.0 m/s or more in a pressure drop ( ⁇ P) of 50 Pa or less, and specifically 25 Pa or less. It is possible to remove fine dust and ultrafine dust at a filter speed of 2.0 m/s or more at a pressure drop ( ⁇ P), more specifically 2.5 to 9.0 m/s at a pressure drop ( ⁇ P) of 6 to 20 Pa. have.
  • the air purifier according to the present invention includes the composite filter as a mobile filter, the pressure drop generated in the filter is low, and more specifically, a high speed in the range at a low pressure drop ( ⁇ P) in the range. As it is possible to remove fine dust, there is an advantage of remarkably improving air quality within a short time.
  • Fine dust removal efficiency (E) [(fine dust concentration before filter-fine dust concentration after filter)/fine dust concentration before filter] X 100 (%)
  • QF Quality Factor
  • m-QF quality factor X air injection speed (m/s ⁇ Pa)
  • a metal precursor aqueous solution was prepared by stirring 53.5 ⁇ M silver nitrate aqueous solution 30 mL, 9.01 ⁇ M platinum hydrochloric acid aqueous solution 30 mL, and 8.98 ⁇ M palladium nitrate aqueous solution 30 mL for 1 minute. At this time, the pH of the aqueous metal precursor solution was 2.1. Then, 100 pieces of melamine-formaldehyde sulfate foam (Basf's Basotect) were cut into a cube having a size of 0.5 X 0.5 0.5 cm 3 to 1.3 X 1.3 X 1.3 cm 3 .
  • the cut foam was added to the aqueous metal precursor solution and etched by stirring at 25° C. for 10 hours (Example 1), 24 hours (Example 2), 48 hours (Example 3) and 72 hours (Example 4), respectively.
  • a foam coated with a metal precursor was obtained on the surface.
  • Example 4 prepared using an Energy Dispersive Spectrometer (EDS), as shown in Fig. 6, consisting of 45.53% platinum, 31.49% silver, and 22.98% palladium. Confirmed.
  • EDS Energy Dispersive Spectrometer
  • the spherical composite filter of Example 4 manufactured in an air purifier including a fine dust inlet, an air inlet, and an outlet from which the purified air is discharged was mounted as a mobile filter.
  • the air purifier exhibited a motion similar to that of a ball in the lottery machine as the composite filter rotates by air flowing in through the air inlet, and the filter introduced fine particles (PM in) through the fine dust inlet.
  • the purified air was discharged to the discharge unit by adsorbing and removing dust (PM10) and ultrafine dust (PM2.5).
  • a composite filter was prepared in the same manner as in Example 4, except that 45 mL of a 9.01 ⁇ M aqueous platinum hydrochloric acid solution and 45 mL of a 8.98 ⁇ M palladium nitrate aqueous solution were used as the metal precursor aqueous solution in Example 4. It was confirmed that the composite filter had a cube shape.
  • a composite filter was prepared in the same manner as in Example 4, except that 45 mL of 53.5 ⁇ M silver nitrate aqueous solution and 45 mL of 8.98 ⁇ M palladium nitrate aqueous solution were used as the metal precursor aqueous solution in Example 4. Was confirmed to have a cube shape.
  • a composite filter was prepared in the same manner as in Example 4, except that 45 mL of 53.5 ⁇ M silver nitrate aqueous solution and 45 mL of 9.01 ⁇ M platinum hydrochloric acid aqueous solution were used as the metal precursor aqueous solution in Example 4, It was confirmed that the filter had a cube shape.
  • Example 4 As a result of manufacturing a composite filter in the same manner as in Example 4, except that only an aqueous silver nitrate solution was used as the metal precursor aqueous solution in Example 4, it was confirmed that the manufactured composite filter had a cube shape.
  • Example 4 As a result of manufacturing a composite filter in the same manner as in Example 4, except that only an aqueous platinum hydrochloric acid solution was used as the aqueous metal precursor solution in Example 4, it was confirmed that the manufactured composite filter had a cube shape.
  • Example 4 As a result of manufacturing a composite filter in the same manner as in Example 4, except that only an aqueous palladium nitrate solution was used as the aqueous metal precursor solution in Example 4, it was confirmed that the manufactured composite filter had a cube shape.
  • the prepared composite filter was mounted as a mobile filter in the air purifier of FIG. 7 to confirm the efficiency of removing fine dust.
  • the composite filter rotated like a ball in the lottery machine by the introduced air, and as a result of calculating the removal efficiency, the removal efficiency of fine dust (PM10) was 99.7% at the air injection speed of 2.5 m/s It was confirmed that the removal efficiency of ultrafine dust (PM2.5) was 98.8%, and it was confirmed that the removal efficiency of fine dust (PM10) was high as 85.3% even at a high speed of 9.5 m/s.
  • the QF value of the fine dust (PM10) at the speed of 2.5 m/s is 0.9202 Pa -1
  • the m-QF value was 2.301 m/s ⁇ Pa
  • the QF value of ultrafine dust (PM2.5) was 0.737 Pa -1
  • the m-QF value was 1.843 m/s ⁇ Pa
  • the speed of 9.5 m/s It was confirmed that the QF value of fine dust (PM10) was 0.099 Pa -1 and the m-QF value was 0.941 m/s ⁇ Pa.
  • the composite filter according to the present invention not only exhibits high-efficiency filter performance, but also has remarkably excellent filter performance compared to the injected speed.
  • the inside of the air purifier is 15 minutes. It was confirmed that 24 mg/m 3 of fine dust (PM10) and 12 mg/m 3 of ultrafine dust (PM2.5) remained.
  • the residual amount is a “good” level according to the Air Qualiy Guideline of the World Health Organization (WHO), which is less than 30 mg/m 3 of PM10 and 15 mg/m 3 of PM2.5, for a short time. It was confirmed that the air quality in the interior was improved to a good level.
  • WHO World Health Organization
  • the composite filter of Example 11 manufactured in an air purifier including an air inlet through which air containing fine dust is introduced and an outlet through which the purified air is discharged is applied as a fixed filter to obtain fine dust (PM10).
  • the removal efficiency was more than 95%, and at a speed of 2.5 m/s, 10,000 mg/m 3 of fine dust (PM10) and 3,000 mg/m 3 of ultrafine dust (PM2.
  • the air quality was improved to a level of “good” in 23 minutes.

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  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

La présente invention concerne un filtre à poussière fine et un purificateur d'air sur lequel est monté le filtre et, plus particulièrement, un purificateur d'air à haute performance qui : comprend, en tant que filtre mobile, un filtre composite qui a une excellente efficacité d'élimination de poussière fine et qui est réutilisable; et peut rapidement éliminer la poussière fine tout en maintenant une faible chute de pression même sous un débit élevé.
PCT/KR2019/003982 2019-03-22 2019-04-04 Purificateur d'air ayant un filtre à poussière fine mobile monté sur celui-ci Ceased WO2020196973A1 (fr)

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KR1020190032708A KR102085544B1 (ko) 2019-03-22 2019-03-22 유동형 미세먼지 필터 탑재 공기청정기
KR10-2019-0032708 2019-03-22

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KR102640752B1 (ko) * 2021-06-02 2024-02-27 홍성완 섬유상 담체를 포함하는 미세먼지 제거용 유동형 필터 및 그의 제조방법
KR102446049B1 (ko) 2022-01-18 2022-09-23 주식회사 디보슨 로봇에 장착된 공기청정기 겸용 멸균기

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