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WO2019167585A1 - Dispositif de purification d'air - Google Patents

Dispositif de purification d'air Download PDF

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Publication number
WO2019167585A1
WO2019167585A1 PCT/JP2019/004328 JP2019004328W WO2019167585A1 WO 2019167585 A1 WO2019167585 A1 WO 2019167585A1 JP 2019004328 W JP2019004328 W JP 2019004328W WO 2019167585 A1 WO2019167585 A1 WO 2019167585A1
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WO
WIPO (PCT)
Prior art keywords
filter
air
base material
material layer
deodorizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/004328
Other languages
English (en)
Japanese (ja)
Inventor
大輔 小森
港 加藤
知弘 足立
由浩 辻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2019167585A1 publication Critical patent/WO2019167585A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • 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
    • 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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material

Definitions

  • the present invention relates to an air cleaning device including an air filter for air purification.
  • Formaldehyde one of the aldehydes that are representative of odorous substances, is released from wallpaper and furniture in the house. And even if it is a low concentration, it causes health problems, so it is desired to remove it as an indoor pollutant.
  • the adsorbent 102 is contained in activated carbon, silica gel, or the like, which is the support layer 103, and is held between the base material 104 and the cover layer 105. It has been disclosed that it is held in a filter and molded into a pleat shape (see, for example, Patent Document 1).
  • the conventional filter medium and the air purifier using the filter medium have a problem that the adsorption performance of the pleated filter is high, but the adsorption capacity is low. Specifically, since the adsorption performance is high, more formaldehyde can be adsorbed when a high concentration of formaldehyde flows into the air cleaning device. However, when the adsorbent is consumed, the adsorption performance is reduced. That is, as an air cleaning device, high formaldehyde adsorption performance cannot be maintained.
  • an object of the present invention is to provide an air cleaning device that can stably maintain the effect of removing formaldehyde for a long period of time.
  • the present invention is an air cleaning device equipped with an air filter and a deodorizing filter in which a sheet-like filter medium comprising a base material layer supporting a filter shape and a fiber layer for collecting particles in the air is pleated.
  • the air filter includes an adsorbent containing an amine compound in a base material layer.
  • the surface wind speed of the airflow passing through the deodorizing filter is larger than the surface wind speed of the airflow passing through the air filter. Furthermore, the adsorption rate and adsorption capacity of the deodorizing filter are larger than the adsorption rate and adsorption capacity of the base material layer.
  • the deodorizing filter is disposed upstream of the air filter in the airflow direction. That is, the air that has flowed into the air cleaning device passes through the deodorizing filter and then passes through the air filter.
  • FIG. 1 is a perspective view showing an installed state of the air cleaning device according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the air cleaning device according to the first embodiment of the present invention.
  • FIG. 3 is a perspective view of the air filter according to the first embodiment of the present invention.
  • FIG. 4 is a configuration diagram of a filter medium used for the air filter according to the first embodiment of the present invention.
  • FIG. 5 is a schematic sectional view of the filter medium according to the first embodiment of the present invention.
  • FIG. 6 is an enlarged schematic sectional view of the filter medium according to the first embodiment of the present invention.
  • FIG. 7 is a schematic view showing the arrangement of the deodorizing filter and the air filter according to the second embodiment of the present invention.
  • FIG. 8 is a cross-sectional view showing a filter medium mounted on a conventional air cleaning device.
  • formaldehyde is generated from wallpaper 1 or furniture 2 in the building. Since formaldehyde has a higher specific gravity than air, it is present indoors in a high concentration state near the floor 3.
  • the air cleaning device 4 shown in the first embodiment is installed on the indoor floor 3 and performs an air cleaning operation as shown in FIG.
  • the body case 5 of the air cleaning device 4 has a substantially vertically long box shape.
  • a substantially rectangular air inlet 9 is provided on the front surface of the main body case 5.
  • a panel 32 is disposed at the center of the air inlet 9, and the air inlet 9 is open at the edge of the panel 32.
  • a substantially rectangular exhaust port 10 is provided on the top surface of the main body case 5.
  • a blower 6, an air filter 7 and a deodorizing filter 8 are provided in the main body case 5.
  • the air blower 6 is provided in the air path between the air inlet 9 and the air outlet 10.
  • the air blower 6 includes a scroll-shaped casing 11 and an electric motor 13.
  • the blade 12 is a centrifugal blower fan provided in the casing 11.
  • the electric motor 13 rotates the blades 12.
  • An inlet 30 on the inlet side is provided downstream of the inlet 9.
  • the opening 30 on the inlet side forms an entrance into the main body case 5 and has a substantially square shape.
  • a deodorizing filter 8 is disposed over the entire surface of the opening 30 on the inlet side.
  • the air filter 7 is disposed on the downstream side of the deodorizing filter 8.
  • the air blower 6 is arranged further downstream of the air filter 7 and upstream of the exhaust port 10.
  • the air filter 7 is formed of a filter medium 14 and a shape holding part 15 (see FIG. 3).
  • the air filter 7 In order to improve the dust collection performance and deodorization performance by lowering the surface wind speed during ventilation, the air filter 7 should hold the filter media 14 so that the area of the filter media 14 is widened. Therefore, as shown in FIGS. 3 and 4, the air filter 7 has a pleated shape.
  • the shape holding unit 15 includes a quadrangular side-shaped frame portion 16 and an adhesive member 17 provided between the frame portion 16 and the filter medium 14. That is, the frame portion 16 is positioned at the periphery of the filter medium 14, and the pleated filter medium 14 is fixed to the frame portion 16 by the adhesive member 17.
  • the pleated shape may be formed by folding the sheet-like filter medium 14 alternately with a mountain fold and a valley fold using a folding machine (not shown). Finally, the filter medium 14 formed into a pleat shape is fixed to the frame portion 16 by the adhesive member 17.
  • a hot melt resin or various adhesives can be used for the adhesive member 17. If a method such as joining only the apexes of the pleats with the adhesive member 17 is used, the shape can be fixed while ensuring the surface area of the filter medium 14.
  • the setting of the pitch 18 greatly affects the area of the filter medium 14 to be used.
  • the pitch 18 is narrowed and the peaks 31 are increased, the area of the filter medium 14 can be increased.
  • Increasing the area of the filter medium 14 can lower the passage surface wind speed and improve the deodorizing performance.
  • the amount of the adsorbent 21 contained in the base material layer 19 constituting the filter medium 14 shown in FIGS. 5 and 6 is increased, the life that can be deodorized can be extended.
  • the detailed configuration of the filter medium 14 will be described later.
  • the area of the filter medium 14 is obtained by multiplying the product of the thickness dimension of the air filter 7 and the width dimension of the sheet-like filter medium 14 by the value obtained by doubling the number of peaks 31.
  • the pitch of the air filter 7 is 3.5 mm (about 10 to 15 times) with respect to the air filter 7 having a width of 273 mm, a height of 454 mm, and a thickness of 43.5 mm
  • the filter medium 14 The area is 3.1 m 2 .
  • the surface wind speed is a value obtained by dividing the processing air volume by the filter medium area. Therefore, when the processing air volume is 8.8 m 3 / min, the surface air speed for the filter medium 14 is 4.7 cm / sec. .
  • the filter medium 14 before the pleating process includes a base material layer 19 and a fiber layer 20.
  • the base material layer 19 supports the air filter 7.
  • the fiber layer 20 is disposed on the upstream side of the airflow with respect to the base material layer 19 to collect particulate matter.
  • the base material layer 19 and the fiber layer 20 are bonded using an adhesive.
  • an adhesive agent The adhesion
  • a resin adhesive such as hot melt or powder
  • a sheet-like filter is obtained by applying a heat-melted adhesive to the base material layer 19 and bonding and cooling the fiber layer 20 before solidifying.
  • the filter medium 14 is produced.
  • adhesion with a molten adhesive is good, the coating concentration on the surface can be made thinner and uniform than in powder form, and peeling of the fiber layer 20 and the base material layer 19 can be prevented. Furthermore, according to the melted adhesive, the adhesive that soaks into the base material layer 19 at the time of application of the adhesive can be thinned, so that the adhesive contains the components of the adsorbent 21 and suppresses the deodorizing performance from being deteriorated. it can.
  • the pressure loss generated after pleating can be reduced by setting the thickness of the sheet filter medium 14 to 0.74 mm or less.
  • the thickness of the sheet filter medium 14 is set to 0.74 mm or less.
  • the pressure loss was 70 Pa.
  • the pressure loss was 72 Pa.
  • the pressure loss was 159 Pa. Furthermore, when the thickness of the filter medium 14 was 1.27 mm, the pressure loss increased to 160 Pa.
  • the thickness of the filter medium 14 is preferably in a range thinner than the thickness dimension in which the pressure loss increases rapidly. That is, it is preferable that the thickness of the filter medium 14 be in the vicinity of 0.74 mm.
  • a general resin material or a natural fiber material can be used.
  • PAN polyacrylonitrile
  • PP polypropylene
  • PE polyethylene
  • PS polystyrene
  • PEO polyethylene oxide
  • PPE polyphenyl ether
  • PPO polyphenylene oxide
  • PTFE polytetrafluoroethylene
  • PEN Polyethylene naphthalate
  • PET polyethylene terephthalate
  • PES polyethersulfone
  • polymethacrylic acid polymethyl methacrylate
  • PVDF polyvinylidene fluoride
  • PVDF polyvinyl chloride
  • PVA polytetrafluoroethylene
  • PC polycarbonate
  • PC polyamide, polyimide, polyamideimide, aramid, polyimide benzazole
  • PGA polyglycolic acid
  • PGA polylactic acid
  • PVA Polyurethane
  • cellulose compound a polypeptide, nylon, etc., or may be those such as mixtures thereof
  • the average fiber diameter of the fibers constituting the fiber layer 20 is preferably as thin as possible. Specifically, it is preferably composed of fibers of 100 nm to 5000 nm. If the fiber diameter is thicker than 5000 nm, the volume ratio of the resin fibers increases even if the pores of the fiber layer 20 are formed, and the air resistance increases (increases the pressure loss), which is not preferable. Moreover, it is not preferable that the fiber diameter is smaller than 100 nm because fiber breakage or fluffing is likely to occur.
  • the dust collection performance can be improved by subjecting the fiber layer 20 to a post-charging treatment.
  • a post-charging treatment there is an electret for applying corona discharge to the fiber layer 20 or a technique of impregnating with a solvent and then drying (not shown).
  • the basis weight of the fiber layer 20 is preferably 10 to 100 g / m 2 .
  • the basis weight is less than 10 g / m 2 , the self-supporting property of the fiber layer 20 is lowered, so that it is difficult to maintain the nonwoven fabric in a film shape only by the fiber layer 20.
  • the basis weight exceeds 100 g / m 2 , the pressure loss of the fiber layer 20 increases, and the structural pressure loss of the air filter 7 when pleated becomes large, which is not preferable.
  • the base material layer 19 is formed of fibers including at least one of glass fibers, pulp fibers, resin fibers, carbon fibers, and inorganic fibers.
  • Examples of the method for producing the base material layer 19 include a spunbond method, a dry or wet papermaking method, a melt blown method, a spunbond method, an airlaid method, and a thermal bond method.
  • the basis weight of the base material layer 19 is preferably 50 to 100 g / m 2 .
  • the basis weight is less than 50 g / m 2 , the bending resistance of the base material layer 19 decreases, so that it becomes difficult to reduce the productivity of the pleating process and to maintain the filter shape.
  • it exceeds 100 g / m ⁇ 2 > in addition to the pressure loss of the base material layer 19 becoming large, the structural pressure loss of the air filter 7 at the time of pleating becomes large, which is not preferable.
  • the average fiber diameter of the fibers constituting the base material layer 19 is preferably 20 to 50 ⁇ m. If the average fiber diameter is less than 20 ⁇ m, the strength of the fibers is low, and the strength as a reinforcing material is insufficient. Further, when the fiber diameter is reduced, the adsorbent 21 is attached to the gaps between the fibers rather than on the fibers. As a result, the pressure loss increases, the amount of adsorbent 21 attached decreases, and the adsorbent 21 easily desorbs. On the other hand, when the average fiber diameter exceeds 50 ⁇ m, the thickness of the base material layer 19 is increased, and the structural pressure loss of the air filter 7 when pleated is increased, which is not preferable.
  • the base material layer 19 carries an adsorbent 21 containing an amine-based drug.
  • the adsorbent 21 carried on the base material layer 19 contains an amine compound as a part of the components. It is known that an amine compound and formaldehyde cause the following irreversible chemical reaction.
  • the filter medium 14 according to the present embodiment can be applied to deodorization intended for aldehydes.
  • the above chemical reaction is called chemisorption and is distinguished from physical adsorption such as activated carbon.
  • chemical adsorption since the adsorbed aldehydes are not released again, there is an advantage that the aldehydes can be stably removed stably.
  • the adsorbent 21 is contained in the spinning solution or the coating solution at the time of fiber spinning or coating the base fiber with a resin or the like. Further, as a method after the formation of the base material layer 19, a method in which the adsorbent 21 is dissolved and dispersed in a solution, a small amount of a surfactant and a binder are added, and then the base material layer 19 is immersed in this liquid. Examples thereof include a method in which the liquid contained in the agent 21 is sprayed and a method in which the liquid is applied with a brush or a roller.
  • a method using a method of impregnating the adsorbent 21 after the base material layer 19 is formed is preferable.
  • the adsorbent 21 can be contained in a large amount over a wide range in the surface portion 22 of the base material layer. If the adsorbent 21 can be present over a wide range of the surface portion 22 of the base material layer, the contact probability with formaldehyde increases, and the adsorption performance can be improved.
  • the particle size of the adsorbent 21 is 10 ⁇ m or less.
  • the particle diameter is 10 ⁇ m or less, the surface area is increased and the contact probability with formaldehyde can be increased and the reactivity can be improved.
  • the particle diameter exceeds 10 ⁇ m, it is difficult to adhere to the fibers of the base material layer 19, which causes powder falling off. When powder falling occurs, the deodorizing performance is degraded.
  • the adsorbent 21 fills the gaps between the fibers forming the base material layer 19, and further increases the rigidity when pleated, so that the pressure loss of the air filter 7 is also caused. It is.
  • the amount of adsorbent 21 attached to the base material layer 19 is 10 g / m 2 to 30 g / m 2 .
  • the deodorizing filter 8 is configured with a large adsorption capacity.
  • a substance having a large adsorption capacity is a substance having many porous adsorption sites, such as activated carbon or zeolite.
  • the shape of the deodorizing filter 8 is not a pleated type, but a corrugated shape, a lattice shape, a continuous shape, a net shape, or the like that can increase the surface wind speed is preferable.
  • the opening width is 273 mm and the opening height is 454 mm
  • the processing air volume of the deodorizing filter 8 is 8.8 m 3 / min
  • the surface wind speed is 1.2 m / sec
  • the filter medium 14 of the air filter 7 The surface wind speed of 4.7 cm / sec can be about 25 times the value.
  • the honeycomb shape is good (details will be described in the second embodiment).
  • the first is a method of corrugating by dispersing activated carbon or zeolite in the base material to be corrugated.
  • the second method is a method in which an adhesive is applied to a lattice-like, net-like, or honeycomb-like support 24 (see FIG. 7), and activated carbon or zeolite is adhered and processed.
  • the third method is to enclose activated carbon or zeolite in the pores 25 of the honeycomb.
  • the air cleaning device 4 when the air cleaning device 4 is operated, the indoor air sucked into the main body case 5 from the air inlet 9 by the air blower 6 sequentially passes through the deodorizing filter 8 and the air filter 7, and thereafter It is discharged into the room from the exhaust port 10. At this time, the air purifier 4 purifies the air containing formaldehyde in the room with the deodorizing filter 8 and the air filter 7 and blows the air into the room.
  • the air filter 7 has a configuration in which a fiber layer 20 that mainly collects particulate matter and a base material layer 19 containing an adsorbent 21 component are pleated. In the air filter 7, when the surface wind speed at the time of ventilation is lowered, the adsorption performance of particulate matter and formaldehyde is improved.
  • formaldehyde tends to cause adsorption performance with the adsorbent 21 present on the surface portion 22 of the base material layer.
  • the air flow that has passed through the base material layer 19 is likely to be disturbed, and the air spreads along the surface portion 22. That is, there is a high probability that formaldehyde contacts the adsorbent 21 present on the surface portion 22 of the base material layer.
  • the initial high adsorption performance as the air cleaning device 4 is high, and if the adsorbent 21 present on the surface portion 22 of the base material layer is consumed, the adsorption performance is lowered. In particular, when high-concentration formaldehyde passes, the adsorbent 21 on the surface portion 22 of the substrate is consumed immediately, and the adsorption performance is lost.
  • the deodorizing filter 8 is disposed on the upstream side of the air filter 7.
  • the air flowing into the air cleaning device 4 is configured to pass through the air filter 7 after passing through the deodorizing filter 8.
  • the deodorizing filter 8 since the surface wind speed of the process air from the ventilation part 6 is sufficiently high compared with the air filter 7, the adsorption
  • the adsorption capacity of the deodorizing filter 8 can be made higher than the adsorption capacity of the base material layer 19. Because activated carbon and zeolite have pore walls, they have a relatively large surface area and a large adsorption capacity. Further, the adsorption speed can be increased by applying the dispersion force (concentration gradient) of the gas component toward the pore walls.
  • the inflowed formaldehyde when the inflowed formaldehyde has a low concentration, it is not adsorbed by the deodorizing filter 8 but is adsorbed and removed by the air filter 7 on the downstream side of the deodorizing filter 8. Since the air filter 7 has high adsorption performance, formaldehyde is removed from the air discharged from the exhaust port 10. On the other hand, when the inflowed formaldehyde has a high concentration, since the concentration gradient inside and outside the adsorption site of the deodorizing filter 8 is large, adsorption is promoted even in the deodorizing filter 8 having a high surface wind speed, and a certain amount is adsorbed. Can do.
  • the support 24 of the deodorizing filter 8 has a honeycomb shape. Holes 25 are formed by the partition walls of the honeycomb. It is preferable to attach or hold activated carbon or zeolite in the pores 25.
  • the hole 25 is a polygonal cylinder or a cylinder with an opening of 4 inches or less.
  • the support 24 has a honeycomb shape, a large amount of activated carbon or zeolite can be attached or held around the entire periphery of the hole 25. Further, since a large number of holes 25 can be provided, a deodorizing filter that has a large adsorption capacity and is easy to contact with formaldehyde can be obtained.
  • the formaldehyde flowing into the deodorizing filter 8 does not diffuse outside the holes 25 but is adsorbed inside the holes 25.
  • the air after passing through the deodorizing filter 8 is further adsorbed by the air filter 7 and the concentration of formaldehyde is sufficiently reduced. Formaldehyde contained when the air discharged from the exhaust port 10 is sucked from the intake port 9 is removed.
  • the deodorizing filter 8 disposed on the upstream side of the airflow can prevent the adsorbent 21 from being exposed to high-concentration formaldehyde, so that the air purifier having high adsorption performance for a long period of time. Can be provided.
  • the air purifier according to the embodiment is an air purifier equipped with an air filter and a deodorizing filter in which a sheet-like filter medium is pleated.
  • the sheet-like filter medium is composed of a base material layer that supports the filter shape and a fiber layer that collects particles in the air.
  • the base layer of the air filter contains an adsorbent containing an amine compound.
  • the surface wind speed of the air passing through the deodorizing filter is made larger than the surface wind speed of the air passing through the air filter. Furthermore, the adsorption rate and adsorption capacity of the deodorizing filter are made larger than the adsorption rate and adsorption capacity of the base material layer, respectively.
  • the deodorizing filter is arranged on the upstream side of the air filter with respect to the airflow direction. That is, the air that has flowed into the air purifier passes through the air filter after passing through the deodorizing filter.
  • the deodorizing filter is made of activated carbon or zeolite.
  • the adsorption rate due to the dispersion force of the deodorizing filter can be made faster than the adsorption rate of the base material layer, and the adsorption capacity of the deodorizing filter can be made larger than the adsorption capacity of the base material layer. Therefore, a large amount of formaldehyde can be adsorbed when the concentration of inflowed formaldehyde is high. That is, even when high-concentration formaldehyde flows in, the air filter adsorbent can be protected, the amount of consumption can be suppressed, and an air cleaning device having high adsorption performance for a long time can be provided.
  • the air purifier may be one in which the deodorizing filter has a honeycomb-shaped hole by a support and activated carbon or zeolite is attached or held in the hole.
  • the adsorption capacity of the deodorizing filter can be increased.
  • the formaldehyde that has flowed into the hole cannot diffuse outside the hole, and the concentration is sufficiently reduced inside the hole and passes through the deodorizing filter.
  • the reaction by the adsorbent can be caused by an air filter disposed downstream of the odor filter. Due to the action of the deodorizing filter, the adsorbent can prevent the adsorbent from being exposed to a high concentration of formaldehyde by the deodorizing filter. That is, the high adsorption performance of the air filter can be maintained for a long time. Therefore, an air cleaning device having high adsorption performance can be provided.
  • An air purifier equipped with an air filter and a deodorizing filter pleated with a sheet-like filter medium.
  • a sheet-like filter medium consists of a base material layer and a fiber layer.
  • the base material layer supports the filter shape.
  • the fiber layer collects particles.
  • the air filter includes an adsorbent containing an amine compound in the base material layer. Moreover, the surface wind speed of the air which passes a deodorizing filter is larger than the surface wind speed of the air which passes an air filter. Furthermore, the deodorizing filter is arranged on the upstream side of the air filter. The action of the deodorizing filter protects the adsorbent from exposure to high concentrations of formaldehyde. That is, it is possible to provide an air cleaning device that suppresses consumption of the adsorbent contained in the base material layer and has high adsorption performance over a long period of time.
  • the present invention can also be applied to a ventilator that requires a similar function.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

L'invention concerne un dispositif de purification d'air qui maintient de manière stable l'efficacité dans l'élimination de substances chimiques telles que le formaldéhyde pendant une longue période. Le dispositif de purification d'air est équipé d'un filtre à air et d'un filtre désodorisant. Le filtre à air est formé par plissage d'un matériau filtrant en feuille qui comprend une couche de substrat et une couche de fibres. La couche de substrat supporte la forme du filtre. La couche de fibres piège les particules. Le filtre à air comprend en outre, dans la couche de substrat, un adsorbant contenant un composé amine. De plus, le filtre désodorisant est disposé sur la face avant du filtre à air en termes de trajet d'écoulement d'air. Le dispositif de purification d'air est configuré de telle sorte que l'air s'écoulant dans le dispositif passe à travers le filtre à air après avoir traversé le filtre désodorisant.
PCT/JP2019/004328 2018-02-27 2019-02-07 Dispositif de purification d'air Ceased WO2019167585A1 (fr)

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JP2018-032644 2018-02-27
JP2018032644 2018-02-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110694377A (zh) * 2019-09-19 2020-01-17 泉州台商投资区恒鑫隆网络科技有限公司 一种防浊气增生的抗菌除甲醛除异味空气过滤网装置
JP2021159883A (ja) * 2020-04-02 2021-10-11 日本シール精工株式会社 複合フィルタ、及びフィルタユニット
JP2024006843A (ja) * 2022-06-30 2024-01-17 研能科技股▲ふん▼有限公司 室内空気汚染の位置特定及び除去方法
US11976847B2 (en) 2022-03-22 2024-05-07 Danvita Thermal LLC Air purification system

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