WO2020121470A1 - Dispositif de filtre - Google Patents

Dispositif de filtre Download PDF

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Publication number
WO2020121470A1
WO2020121470A1 PCT/JP2018/045847 JP2018045847W WO2020121470A1 WO 2020121470 A1 WO2020121470 A1 WO 2020121470A1 JP 2018045847 W JP2018045847 W JP 2018045847W WO 2020121470 A1 WO2020121470 A1 WO 2020121470A1
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WO
WIPO (PCT)
Prior art keywords
filter device
filter
ventilation
air
opening
Prior art date
Application number
PCT/JP2018/045847
Other languages
English (en)
Japanese (ja)
Inventor
遼平 石橋
耕平 長谷川
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/045847 priority Critical patent/WO2020121470A1/fr
Publication of WO2020121470A1 publication Critical patent/WO2020121470A1/fr

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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
    • 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
    • F24F13/02—Ducting arrangements

Definitions

  • the present invention relates to a filter device for purifying air.
  • a ventilation system is installed behind the ceiling of the building to ventilate the interior of the building.
  • the ventilation system includes a ventilation device including a blower for taking in air from the outside of the building, and a filter device having an air filter installed on a ventilation duct that connects the outside of the building and the ventilation device.
  • the housing of the filter device is designed so that the flow path around the air filter is wide, thereby reducing the flow velocity of the air around the air filter and reducing the pressure loss (for example, The following Patent Document 1).
  • the housing of the filter device is manufactured by sheet metal working. Therefore, the housing is made of a non-deformable member.
  • a filter device has a large volume of the housing because the flow path is designed to be wide, and the housing is not deformed. Therefore, it is bulky and requires a lot of space when it is transported or stored. There was a problem.
  • the present invention aims to provide a filter device capable of reducing the space required for transportation or storage.
  • a filter device includes an air filter for purifying air, a first opening that is an opening connected to a ventilation duct, and a second opening that is an opening connected to an outer peripheral portion of the air filter. And a ventilation part which is formed by a hollow member forming a flow path connecting the first opening part and the second opening part, and the hollow member is deformed so as to come close to the air filter. ..
  • the ventilation part is deformed so as to be close to the air filter, it is possible to reduce the space required for transportation or storage.
  • FIG. 3 is a perspective view showing a contracted state of the filter device according to the first embodiment of the present invention. It is sectional drawing which shows the contracted state of the filter apparatus which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the contracted state of the filter apparatus which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the expansion
  • Embodiment 1 The filter device 10 according to the first embodiment of the present invention is connected between the ventilation ducts 2a and 2b in the ventilation system 100 that supplies air from the outside of the building to ventilate the inside of the building, and purifies the supplied air.
  • the ventilation part 12 constituting the filter device 10 is deformed in a direction away from the air filter 11 when installed in a building to form a flow path, and is deformed in a direction approaching the air filter 11 during transportation or storage ( 2 and 4). Thereby, when transporting or storing the filter device 10, the volume of the filter device 10 can be reduced, and the space can be reduced.
  • FIG. 1 is a side view of a ventilation system 100 installed in the ceiling of a building.
  • the space above the ceiling is a space defined by walls 1a and 1b that form the building.
  • Each of these walls 1a and 1b is provided with an opening for ventilating the inside of the building.
  • the ventilation system 100 includes ventilation ducts 2a, 2b, 2c, a filter device 10 and a ventilation device 17. With these configurations, the opening in the wall 1a and the opening in the wall 1b are connected to each other to connect the outside and the inside of the building. Ventilation is performed by forming an air flow path that connects the two and supplying air to the inside of the building.
  • the opening provided in the wall 1a communicates the outside of the building with the space above the ceiling, and the ventilation duct 2a that constitutes the ventilation system 100 is inserted and fixed in this opening.
  • the ventilation duct 2a extends to the inside of the building, is connected to the filter device 10, and supplies the air outside the building to the filter device 10.
  • the filter device 10 includes an air filter 11 that purifies air, purifies the air outside the building that is supplied through the ventilation duct 2a by the air filter 11, and filters the air that has passed through the air filter 11 into the ventilation duct 2b. To release through. Further, the filter device 10 forms a flow path that guides the air outside the building supplied from the ventilation duct 2a to the air filter 11 and the purified air discharged from the air filter 11 to the ventilation duct 2b.
  • the ventilation part 12 is provided.
  • the ventilation part 12 is composed of an upstream ventilation part 12a and a downstream ventilation part 12b.
  • the upstream ventilation part 12a is provided on the upstream side of the air filter 11, that is, on the opening side of the wall 1a, is connected to the ventilation duct 2a and the air filter 11, and is a flow path from the ventilation duct 2a to the air filter 11.
  • the downstream ventilation part 12b is provided on the downstream side of the air filter 11, that is, on the inside side of the building, is connected to the air filter 11, and forms a flow path from the air filter 11 to the inside side of the building.
  • An end of the downstream ventilation part 12b opposite to the air filter 11 is connected to the ventilation device 17 via the ventilation duct 2b.
  • the ventilation device 17 includes a blower 19 inside a box-shaped housing 18, and generates a negative pressure in a flow path constituted by the ventilation duct 2b, the filter device 10 and the ventilation duct 2a, so that the outside of the building. Air is sucked into the ventilation system 100.
  • a ventilation duct 2c is connected to the air outlet of the blower 19, and the ventilation duct 2c is inserted into an opening that is provided in the wall 1b and communicates with a room inside the building from the ceiling above. The air outside the building that is sucked by the air is supplied to the inside of the building.
  • 2 and 3 show the filter device 10 connected to the ventilation ducts 2a and 2b and in a deployed state.
  • the air filter 11 In the unfolded state, the air filter 11 is arranged at a position that intersects the flow path formed by the ventilation duct 2a, the upstream ventilation section 12a, the downstream ventilation section 12b, and the ventilation duct 2b.
  • the air filter 11 has a hexahedral shape, and includes a plurality of pores penetrating from the upstream surface that intersects the flow path toward the downstream surface. Particles such as dust contained in the air outside the building are trapped on the upstream surface of the air filter 11 and the inner surface of the pores.
  • a filter frame 13 is adhered to the side surface connecting the upstream side surface and the downstream side surface of the air filter 11 with an adhesive such as hot melt.
  • the filter frame 13 is formed of a hard and airtight member made of metal or resin, covers the entire side surface of the air filter 11, maintains the shape of the air filter 11, and suppresses air leakage from the side surface.
  • Ceiling mounts 14a and 14b are fixed to the surface of the filter frame 13 opposite to the air filter 11 (not shown in FIG. 3, see FIG. 2).
  • the ceiling-mounting metal fittings 14a and 14b each have openings, and bolts 3a and 3b extending from a ceiling surface or the like that constitutes the back of the ceiling are passed through these openings. Suspended from the surface and held.
  • Each of the upstream side ventilation part 12a and the downstream side ventilation part 12b is composed of a hollow member having two openings and forming a flow path connecting the two openings.
  • the openings (first openings) of the upstream ventilation part 12a and the downstream ventilation part 12b, which are located away from the air filter 11, are connected to the ventilation duct 2a and the ventilation duct 2b, respectively.
  • the other opening (second opening) is connected to the outer peripheral portion of the air filter 11, that is, the filter frame 13 by an adhesive such as hot melt so that air leakage does not occur. Since the opening area of the second opening is larger than the opening area of the first opening and is connected to the filter frame 13, the areas of the upstream side surface and the downstream side surface of the air filter 11 that intersect the flow path.
  • the upstream ventilation part 12a and the downstream ventilation part 12b are provided with the side wall which forms a hollow member, and the side wall supplies the air from the ventilation duct 2a to the air filter 11, and the air which has passed through the air filter 11 is supplied. It is formed of an airtight member in order to form a flow path for supplying to the ventilation duct 2b. Since the first opening is smaller than the opening area of the second opening, this side wall is configured to expand from the first opening toward the second opening. As a result, the flow path around the air filter 11 is expanded more than around the first opening, the flow velocity of the air passing through the air filter 11 is reduced, and the pressure loss due to the air filter 11 is reduced.
  • the ventilation part 12 Since the side wall expands toward the air filter 11 and expands the flow path in this way, the ventilation part 12 has a function of expanding the size of the cross-sectional area of the flow path, and may be called a flow path expansion part. it can.
  • the side walls of the upstream ventilation part 12a and the downstream ventilation part 12b have a flexible polyethylene resin or vinyl chloride resin, which is a flexible resin, so that the first opening can be deformed in the direction in which the first opening approaches the air filter 11.
  • it is formed of a lightweight and reversibly deformable member such as cloth.
  • the side wall is integrally formed so that the inner surface thereof is composed of a continuously changing surface.
  • Cylindrical joints 15a and 15b having a diameter substantially equal to the diameters of the ventilation ducts 2a and 2b are bonded and connected to the first openings of the upstream ventilation portion 12a and the downstream ventilation portion 12b, respectively.
  • the joints 15a and 15b are respectively connected to the ventilation ducts 2a and 2b by aluminum tapes 16a and 16b so as not to leak air (the aluminum tapes 16a and 16b are omitted in FIG. 2; see FIG. 3).
  • FIG. 4 and FIG. 5 show the filter device 10 in a state in which the ventilation part 12 is deformed in the direction of approaching the air filter 11. Since the ventilation part 12 is formed of a reversibly deformable member, the filter device 10 is in a contracted state when it is not connected to the ventilation ducts 2a and 2b, that is, when it is transported or stored. The volume can be reduced. As shown in FIG. 5, the ventilation part 12 is folded twice between the first opening and the second opening. As a result, the hollow member forming the ventilation part 12 is deformed in the direction approaching the air filter 11.
  • the filter device 10 in the contracted state can be reduced in volume as compared with the filter device 10 in the deployed state as shown in FIGS. 2 and 3, and the hexahedron of the air filter 11 can be obtained. It transforms into a substantially hexahedral shape that conforms to the shape.
  • the deformable member forming the ventilation part 12 is a foldable member, and is a member having flexibility and flexibility.
  • the filter device 10 according to Embodiment 1 of the present invention is configured as described above, and has the following effects.
  • the ventilation part 12 of the filter device 10 is deformed in a direction approaching the air filter 11. Therefore, when the filter device 10 is installed in a building, the ventilation part 12 can be deformed in a direction away from the air filter 11 to form a flow path, and the ventilation part 12 is close to the air filter 11 during transportation or storage.
  • the volume can be reduced to a size close to that of the air filter 11 by deforming in the direction of. Therefore, the space required for transportation or storage can be reduced.
  • the filter device 10 since the filter device 10 is deformed into a shape along the hexahedron-shaped air filter 11, the filter device 10 can be densely loaded or packed in a box, and more filter devices 10 can be transported or stored.
  • the filter device 10 according to the first embodiment of the present invention uses a lightweight member such as resin or cloth. Therefore, the filter device 10 can be reduced in weight and the transportability can be improved.
  • the inner surface of the ventilation part 12 of the filter device 10 is configured by a continuously changing surface, the disturbance of the flow of air passing around the side wall of the ventilation part 12 is suppressed, and the pressure loss is reduced. be able to.
  • the hollow member forming the ventilation part 12 is composed of a plurality of members
  • the plurality of members are connected to each other and a seal is provided to prevent air leakage between the members.
  • the ventilation part 12 of the filter device 10 according to the first embodiment of the present invention is formed of an integrally formed hollow member, a seal or the like is required when the filter device 10 is installed. It is possible to use by simply deforming the ventilation part 12 away from the air filter 11 without requiring the work of. This can improve the work efficiency at the installation site.
  • Embodiment 2 Next, a second embodiment of the present invention will be described. Descriptions of parts similar to those in the first embodiment will be omitted, and parts different from the first embodiment will be described below.
  • the ventilation part 12 is deformed by the negative pressure generated by the blower 19 or the wind flowing from the outside of the building. It may flutter. When flapping occurs, the diameter of the flow path formed by the ventilation part 12 may change, and the amount of air supplied may become unstable. Also, noise may occur due to flapping.
  • the member forming the ventilation part 22 of the filter device 20 according to the second embodiment is deformable, and is also made up of an expandable member. An example of the deformable member that expands and contracts is rubber.
  • the ventilation unit 12 is folded to form the contracted state of the filter device 10 (FIG. 5 ).
  • the contraction state of the filter device 20 is formed by contracting the rubber forming the ventilation part 22.
  • the expanded state of the filter device 10 is formed by extending the folded portion of the ventilation part 12 (FIG. 3 ).
  • the ventilation duct 22 fixed to the wall 1a of the building and the ventilation duct connected to and fixed to the ventilation device 17 are provided as members constituting the ventilation part 22.
  • the expanded state of the filter device 20 is formed by extending it in the installed direction of 2b.
  • the ventilation part 22 in the expanded state of the filter device 20 according to the second embodiment is a state in which the member that expands and contracts is expanded, the first opening is formed at an arbitrary point (for example, point A in FIG. 7) of the ventilation part 22. And tension in the direction toward the second opening is generated. Due to this tension, the ventilation portion 22 in the expanded state is restrained from being deformed and maintains a stable shape.
  • the filter device 20 according to the second embodiment of the present invention is configured as described above, and has the following effects.
  • a negative pressure generated by the blower 19 of the ventilation system 100 or a wind flowing from the outside of the building exerts a force that deforms the ventilation portion 22.
  • the ventilation part 22 of the filter device 20 according to the second embodiment is composed of a member that expands and contracts, and deformation is suppressed by the tension generated in the expanded state. Therefore, when the ventilation system 100 is in operation, it is possible to suppress a change in the diameter of the flow path and stabilize the air supply. Further, by suppressing the deformation of the ventilation part 22, it is possible to reduce the noise due to the fluttering of the ventilation part 22.
  • Embodiment 3 Next, a third embodiment of the present invention will be described. Descriptions of parts similar to those in the first embodiment will be omitted, and parts different from the first embodiment will be described below.
  • the filter device of the third embodiment can be combined with the first or second embodiment.
  • the air filter 11 becomes dirty and the pressure loss increases. Therefore, the air filter 11 needs to be replaced.
  • the time to replace depends on the environment in which the ventilation system 100 is installed or the operating time. Therefore, in the filter device 10 according to the first embodiment, the ventilation duct 2a or 2b is removed and the air filter 11 is removed from the first opening. Without checking the situation, it was not possible to know the proper replacement time.
  • a deformable and transparent member is used as the member forming the ventilation part. Examples of the deformable and transparent member include low density polyethylene resin or polyvinyl chloride resin.
  • the filter device according to the third embodiment of the present invention is configured as described above, and has the following effects.
  • the inside of the filter device specifically, the air filter 11 can be visually recognized from the outside of the filter device. Therefore, even when the filter device is connected to the ventilation ducts 2a and 2b, the condition of the air filter 11 can be confirmed, and the proper replacement time can be known. Further, when the replacement time is appropriate, the filter device according to the third embodiment can be removed from the ventilation ducts 2a and 2b to be in a contracted state and discarded, so that the air filter with dust is directly contacted. No need to do unsanitary work.
  • the air filter 11 provided in the filter device according to the first to third embodiments is for collecting dust, but may be a filter having other functions such as a deodorizing filter. Further, a plurality of filters having different functions may be arranged and provided. Further, although the filter devices according to the first to third embodiments are fixed to the ceiling behind by the ceiling mount fitting 14, they may be installed and fixed on the floor surface behind the ceiling without using the ceiling mount fitting 14.
  • both the upstream ventilation part and the downstream ventilation part are made of deformable members, but only one of the upstream ventilation part and the downstream ventilation part is made of deformable members.
  • the other may be made of metal.
  • the filter devices of the first to third embodiments are provided with the joints 15a and 15b as members for connecting to the ventilation ducts 2a and 2b, the joints 15a and 15b are not provided, and the first ventilation part is not provided.
  • the ventilation ducts 2a and 2b may be directly inserted into the openings and fixed with the aluminum tape 16.
  • the filter device according to the present invention can be applied to a ventilation system that ventilates the inside of a building.

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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

Cette invention concerne un dispositif de filtre ainsi conçu que l'espace requis pour le transport ou le stockage peut être réduit.　Ce dispositif de filtre comprend une partie de passage d'air qui comprend un filtre à air pour purifier l'air et qui est configurée par un élément creux ayant une première ouverture raccordée à un conduit de ventilation et a seconde ouverture raccordée à la circonférence externe du filtre à air et formant un canal raccordant la première ouverture et la seconde ouverture, ledit élément creux étant déformé de façon à être rapproché du filtre à air. L'espace peut être réduit par l'élément creux constituant le passage d'air qui est déformé de façon à être rapproché du filtre à air et à réduire le volume du dispositif de filtre.
PCT/JP2018/045847 2018-12-13 2018-12-13 Dispositif de filtre WO2020121470A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/045847 WO2020121470A1 (fr) 2018-12-13 2018-12-13 Dispositif de filtre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/045847 WO2020121470A1 (fr) 2018-12-13 2018-12-13 Dispositif de filtre

Publications (1)

Publication Number Publication Date
WO2020121470A1 true WO2020121470A1 (fr) 2020-06-18

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ID=71076929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/045847 WO2020121470A1 (fr) 2018-12-13 2018-12-13 Dispositif de filtre

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WO (1) WO2020121470A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269847U (fr) * 1975-11-20 1977-05-24
JPS6272540U (fr) * 1985-10-26 1987-05-09
JPS6430615A (en) * 1987-07-08 1989-02-01 Lafon Labor Filter composed of material obtained by freeze drying and control especially for pharmacuitical field and use method
JP2000304342A (ja) * 1999-04-20 2000-11-02 Takechi Kogyo Gomu Co Ltd 換気用ダクト
KR20140000215U (ko) * 2012-07-02 2014-01-10 현대중공업 주식회사 접이식 송풍용 덕트 장치
US20160273790A1 (en) * 2015-03-20 2016-09-22 James Cunningham System for air temperature maintenance with air cleaning feature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269847U (fr) * 1975-11-20 1977-05-24
JPS6272540U (fr) * 1985-10-26 1987-05-09
JPS6430615A (en) * 1987-07-08 1989-02-01 Lafon Labor Filter composed of material obtained by freeze drying and control especially for pharmacuitical field and use method
JP2000304342A (ja) * 1999-04-20 2000-11-02 Takechi Kogyo Gomu Co Ltd 換気用ダクト
KR20140000215U (ko) * 2012-07-02 2014-01-10 현대중공업 주식회사 접이식 송풍용 덕트 장치
US20160273790A1 (en) * 2015-03-20 2016-09-22 James Cunningham System for air temperature maintenance with air cleaning feature

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