WO2022071166A1 - 全熱交換素子用仕切部材、全熱交換素子、および換気装置 - Google Patents
全熱交換素子用仕切部材、全熱交換素子、および換気装置 Download PDFInfo
- Publication number
- WO2022071166A1 WO2022071166A1 PCT/JP2021/035225 JP2021035225W WO2022071166A1 WO 2022071166 A1 WO2022071166 A1 WO 2022071166A1 JP 2021035225 W JP2021035225 W JP 2021035225W WO 2022071166 A1 WO2022071166 A1 WO 2022071166A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- total heat
- exchange element
- partition member
- permeable membrane
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 title claims description 16
- 238000000638 solvent extraction Methods 0.000 title abstract description 3
- 239000012528 membrane Substances 0.000 claims abstract description 111
- 239000000463 material Substances 0.000 claims abstract description 76
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 18
- 230000000840 anti-viral effect Effects 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 119
- 230000000843 anti-fungal effect Effects 0.000 claims description 15
- 229940121375 antifungal agent Drugs 0.000 claims description 8
- FGVVTMRZYROCTH-UHFFFAOYSA-N pyridine-2-thiol N-oxide Chemical compound [O-][N+]1=CC=CC=C1S FGVVTMRZYROCTH-UHFFFAOYSA-N 0.000 claims description 4
- 229960002026 pyrithione Drugs 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract 2
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 19
- 238000012986 modification Methods 0.000 description 19
- XNRNJIIJLOFJEK-UHFFFAOYSA-N sodium;1-oxidopyridine-2-thione Chemical compound [Na+].[O-]N1C=CC=CC1=S XNRNJIIJLOFJEK-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011800 void material Substances 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XPGDDCOXMUFUCB-UHFFFAOYSA-N 4,4'-(ethyl-2-nitropropane-1,3-diyl)bismorpholine Chemical compound C1COCCN1CC([N+]([O-])=O)(CC)CN1CCOCC1 XPGDDCOXMUFUCB-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- -1 stearyl (meth) acrylic acid Chemical compound 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229940043810 zinc pyrithione Drugs 0.000 description 2
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 2
- ZSZRUEAFVQITHH-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethyl 2-(trimethylazaniumyl)ethyl phosphate Chemical compound CC(=C)C(=O)OCCOP([O-])(=O)OCC[N+](C)(C)C ZSZRUEAFVQITHH-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003443 antiviral agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000012661 block copolymerization Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LLDFSHBCVFHQIV-UHFFFAOYSA-M dimethyl-octadecyl-propylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCC LLDFSHBCVFHQIV-UHFFFAOYSA-M 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
-
- 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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0015—Heat and mass exchangers, e.g. with permeable walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0025—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by zig-zag bend plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/02—Coatings; Surface treatments hydrophilic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/20—Safety or protection arrangements; Arrangements for preventing malfunction for preventing development of microorganisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Definitions
- the present disclosure relates to a partition member for a total heat exchange element, a total heat exchange element provided with the partition member, and a ventilation device provided with the total heat exchange element.
- a ventilation device provided with a heat exchange element As disclosed in Patent Document 1, a ventilation device provided with a heat exchange element is known.
- the heat exchange element exchanges heat between the supply air and the exhaust gas.
- the adhesive containing an antibacterial / antifungal component is provided at a portion where a flat plate-shaped partition member is in contact with a corrugated plate-shaped spacing member. Therefore, it was not possible to suppress the growth of fungi and mold in the portions of the partition member and the spacing member that were not in contact with the adhesive.
- the purpose of this disclosure is to keep the partition member for the total heat exchange element clean.
- the first aspect of the present disclosure is intended for a partition member (40) for a total heat exchange element. Then, the sheet-shaped porous base material (41) and the moisture-permeable membrane (42) provided on the porous base material (41) exhibit at least one of antifungal action, antibacterial action, and antiviral action. It comprises the functional material (46), and the moisture permeable membrane (42) contains the functional material (46).
- the moisture permeable membrane (42) containing the functional material (46) is provided on the sheet-shaped porous base material (41). Therefore, the partition member (40) for the total heat exchange element can be kept clean.
- the second aspect of the present disclosure is characterized in that, in the first aspect, the functional material (46) is smaller than the thickness of the moisture permeable membrane (42).
- the functional material (46) smaller than the thickness of the moisture permeable membrane (42) is provided on the moisture permeable membrane (42). Therefore, even if the functional material (46) falls off from the moisture permeable membrane (42) for some reason, the air flowing through the flow path partitioned by the partition member (40) for the total heat exchange element will pass through the moisture permeable membrane (42). Does not pass.
- the third aspect of the present disclosure is intended for the partition member (40) for the total heat exchange element.
- the sheet-shaped porous base material (41) and the moisture-permeable membrane (42) provided on the porous base material (41) exhibit at least one of antifungal action, antibacterial action, and antiviral action.
- It contains a functional material (46) and is characterized by comprising a functional membrane (45) that covers the surface of the porous substrate (41) or the moisture permeable membrane (42).
- the functional film (45) containing the functional material (46) is provided on the partition member (40) for the total heat exchange element. Therefore, the partition member (40) for the total heat exchange element can be kept clean.
- the fourth aspect of the present disclosure is characterized in that, in the third aspect, the functional membrane (45) is thinner than the moisture permeable membrane (42).
- the functional membrane (45) is thinner than the moisture permeable membrane (42). Therefore, the decrease in the amount of heat exchange due to the provision of the functional film (45) on the partition member (40) for the total heat exchange element is suppressed.
- a fifth aspect of the present disclosure is, in any one of the first to fourth aspects, the moisture permeable membrane (42) is provided so as to cover the surface of the porous substrate (41).
- the surface of the porous substrate (41) covered with the moisture-permeable membrane (42) is subjected to a hydrophilization treatment.
- the porous substrate (41) is hydrophilized. Therefore, the work of forming the moisture permeable membrane (42) on the surface of the porous base material (41) becomes easy.
- a sixth aspect of the present disclosure is characterized in that, in any one of the first to fifth aspects, the functional material (46) is a substance having pyrithione in its molecular structure.
- a substance having pyrithione in the molecular structure is provided in the partition member (40) for the total heat exchange element as a functional material (46).
- the seventh aspect of the present disclosure is intended for the total heat exchange element (30).
- a plurality of partition members (40) for the total heat exchange element according to any one of the first to sixth aspects are provided, and the partition members (40) for the total heat exchange element are arranged between the laminated partition members (40).
- a space holding member (32,125,155) for holding a space between adjacent partition members (40) for total heat exchange elements is provided, and the first air flow path (36,121) and the second air flow path (37,151) exchange total heat. It is characterized in that it is alternately formed by sandwiching a partition member (40) for an element.
- the total heat exchange element (30) provided with the partition member (40) for the total heat exchange element according to any one of the first to sixth aspects is configured.
- the eighth aspect of the present disclosure is intended for the ventilation system (10). Then, the total heat exchange element (30) of the seventh aspect is provided, and the air supply supplied from the outside to the room flows through the first air flow path (36,121) of the total heat exchange element (30) to enter the room. The exhaust gas discharged to the outside of the room flows through the second air flow path (37, 151) of the total heat exchange element (30).
- the ventilation device (10) provided with the total heat exchange element (30) of the seventh aspect is configured.
- FIG. 1 is a schematic cross-sectional view of a partition member for a total heat exchange element according to the first embodiment.
- FIG. 2 is a schematic perspective view of the total heat exchange element of the second embodiment.
- FIG. 3 is a cross-sectional view of a main part of the total heat exchange element of the second embodiment.
- FIG. 4 is a schematic configuration diagram of the ventilation device of the third embodiment.
- FIG. 5 is a perspective view of the total heat exchange element of the fourth embodiment.
- FIG. 6 is a plan view of the total heat exchange element of the fourth embodiment.
- FIG. 7 is a plan view showing a part of the total heat exchange element of the fourth embodiment extracted.
- FIG. 8 is a perspective view showing a cross section of VIII-VIII of FIG. 7 and a periphery of the cross section.
- FIG. 9 is a schematic cross-sectional view of the partition member for the total heat exchange element of the first modification of the other embodiment.
- FIG. 10 is a schematic cross-sectional view of a partition member for a total heat exchange element according to a first modification of another embodiment.
- FIG. 11 is a schematic cross-sectional view of the partition member for the total heat exchange element of the first modification of the other embodiment.
- FIG. 12 is a schematic cross-sectional view of the partition member for the total heat exchange element of the first modification of the other embodiment.
- FIG. 13 is a schematic cross-sectional view of the partition member for the total heat exchange element of the second modification of the other embodiment.
- FIG. 14 is a schematic cross-sectional view of a partition member for a total heat exchange element according to a second modification of another embodiment.
- FIG. 15 is a schematic cross-sectional view of a partition member for a total heat exchange element according to a second modification of another embodiment.
- FIG. 16 is a cross-sectional view corresponding to FIG. 3 of the total heat exchange element of the third modification of the other embodiment.
- FIG. 17 is a cross-sectional view corresponding to FIG. 3 of the total heat exchange element of the fourth modification of the other embodiment.
- Embodiment 1 The first embodiment will be described.
- This embodiment is a partition member (40) for a total heat exchange element.
- the partition member (40) for the total heat exchange element of this embodiment constitutes the total heat exchange element (30) provided in the ventilation device (10).
- the partition member (40) for the total heat exchange element of the present embodiment is a member for exchanging sensible heat and latent heat (moisture) between supply air and exhaust air.
- the "partition member for the total heat exchange element" is simply referred to as a “partition member”.
- the partition member (40) of the present embodiment includes a sheet-shaped porous base material (41) and a moisture permeable membrane (42) provided on the porous base material (41). ..
- the moisture permeable membrane (42) is provided so as to cover the first surface (41a) which is one surface of the porous substrate (41).
- the porous base material (41) is a porous sheet-like member made of, for example, a polyolefin resin.
- the porous substrate (41) may be a non-woven fabric made of a fibrous resin.
- the thickness of the porous substrate (41) is, for example, 10 ⁇ m.
- the porous base material (41) is an element that serves as a support for the moisture permeable membrane (42), and is preferably one having excellent moisture permeability.
- the porous base material (41) is hydrophilized on the first surface (41a), which is one surface.
- the hydrophilization treatment include corona discharge treatment and plasma treatment. By performing this hydrophilization treatment, a carboxy group, a hydroxy group, or a carbonyl group can be generated on the first surface (41a) of the porous substrate (41).
- the moisture permeable film (42) is a film that covers the entire first surface (41a) of the porous substrate (41).
- the moisture permeable membrane (42) is composed of a polymer having moisture permeability.
- the polymer constituting the moisture permeable membrane (42) is a copolymer having a first structural unit and a second structural unit.
- the thickness of the moisture permeable membrane (42) is, for example, 1 ⁇ m.
- the thickness of the moisture permeable membrane (42) is not particularly limited, but is preferably 0.05 to 1 ⁇ m, and more preferably 0.1 to 0.5 ⁇ m. When the thickness of the moisture-permeable film (42) is 0.05 ⁇ m or more, the film-forming property is improved, which leads to the improvement of the gas barrier property. When the thickness is 1 ⁇ m or less, the moisture permeability becomes better.
- Examples of the monomer constituting the first structural unit include 2-methacryloyloxyethyl phosphorylcholine.
- Examples of the monomer constituting the second structural unit include (meth) acrylic acid alkyl esters having an alkyl group having 2 or more carbon atoms in the ester portion, such as stearyl (meth) acrylic acid.
- the copolymerization form of the first structural unit and the second structural unit is not particularly limited, and may be block copolymerization, alternate copolymerization, or random copolymerization. May be good.
- the moisture permeable membrane (42) contains a functional material (46) that has antifungal and antibacterial effects.
- the moisture permeable membrane (42) of the present embodiment contains sodium pyrithione (C5 H4 NNaOS ) as a functional material ( 46 ). Molecules of sodium pyrithione, which is a functional material (46), are dispersed in the moisture permeable membrane (42). Therefore, the size of the functional material (46) contained in the moisture permeable membrane (42) (in this embodiment, the van der Waals radius) is 5 nm or less, and the thickness of the moisture permeable membrane (42) (about 1 ⁇ m). Smaller than.
- the composition for forming the moisture permeable membrane (42) is applied to the first surface (41a) of the porous substrate (41). It includes a coating step of heating and a drying step of heating the coating film formed in the coating step to evaporate the solvent.
- the composition used in the coating step is a composition obtained by dissolving or dispersing the above-mentioned copolymer and the functional material (46) in a solvent such as water.
- the first surface (41a) of the porous substrate (41) to which the composition is applied in the coating step is preliminarily hydrophilized. Therefore, the thickness of the coating film formed on the surface of the first surface (41a) is made uniform, and the moisture permeable film (42) having a uniform thickness is formed.
- sodium pyrithione which is the functional material (46) of this embodiment, dissolves in water as a solvent. Therefore, sodium pyrithione, which is a functional material (46), is substantially dispersed in a molecular state in the moisture permeable membrane (42) formed by applying the above composition to the porous substrate (41). ing.
- the moisture-permeable membrane (42) that covers the entire first surface (41a) of the porous base material (41) is a functional material (46) that exhibits antifungal action and antibacterial action. ) Is contained. Therefore, the growth of bacteria and mold can be suppressed in the entire partition member (40), and the entire partition member (40) can be kept clean.
- Embodiment 1 (2)- Sodium pyrithione, which is a functional material (46), is substantially uniformly distributed in the molecular state on the moisture-permeable membrane (42) of the partition member (40) of the present embodiment. Therefore, the growth of bacteria and mold can be suppressed in the entire partition member (40), and the entire partition member (40) can be kept clean.
- Embodiment 1 (3)- Sodium pyrithione contained in the moisture permeable membrane (42) of the present embodiment as a functional material (46) has sufficient antifungal and antibacterial effects even if the concentration in the moisture permeable membrane (42) is about 4 ppm. Play.
- the concentration of the functional material (46) in the moisture permeable membrane (42) can be suppressed to a low level, and the antifungal action and antibacterial action can be achieved without impairing the moisture permeable performance of the moisture permeable membrane (42).
- a functional material (46) that acts can be contained in the moisture permeable membrane (42).
- a substance having pyrithione in its molecular structure such as sodium pyrithione, has a characteristic that it does not cause deterioration of the copolymer constituting the moisture permeable membrane (42). Therefore, according to the present embodiment, by using sodium pyrithione as the functional material (46), the functional material (46) has an antifungal effect and an antibacterial effect without impairing the durability of the moisture permeable membrane (42). Can be contained in the moisture permeable membrane (42).
- Embodiment 1 -Characteristics of Embodiment 1 (4)-
- the functional material (46) when the functional material (46) is contained in the moisture permeable membrane (42) in the state of particles (solid), the functional material (46) may fall off from the moisture permeable membrane (42).
- the portion where the functional material (46) was present becomes a void. Therefore, when the particle size of the functional material (46) is larger than the thickness of the moisture permeable membrane (42), when the functional material (46) falls off from the moisture permeable membrane (42), the moisture permeable membrane (42) becomes thick.
- a void penetrating in the direction is formed in the moisture permeable membrane (42).
- the air flowing on both sides of the partition member (40) mixes through the void of the moisture permeable membrane (42), so that the partition member (40) The airtightness is impaired.
- the moisture permeable membrane (42) of the partition member (40) of the present embodiment sodium pyrithione, which is a functional material (46), is present in the moisture permeable membrane (42) in a molecular state. Therefore, it is unlikely that the functional material (46) will fall off from the moisture permeable membrane (42) of the present embodiment. Therefore, according to the present embodiment, the airtightness of the partition member (40) can be maintained for a relatively long period of time.
- Embodiment 2 The second embodiment will be described.
- This embodiment is a total heat exchange element (30) provided with the partition member (40) of the first embodiment.
- the total heat exchange element (30) is a orthogonal flow type heat exchanger in which a plurality of first air flow paths (36) and a plurality of second air flow paths (37) are formed. Is.
- the total heat exchange element (30) includes a plurality of partition members (40) and a plurality of spacing members (32), and is formed into a square columnar shape as a whole.
- the total heat exchange element (30) a plurality of partition members (40) and spacing members (32) are alternately laminated. In the total heat exchange element (30), the distance between adjacent partition members (40) is held substantially constant by the distance holding member (32).
- first air flow path (36) and the second air flow path (37) are alternately formed in the stacking direction of the partition member (40) and the spacing member (32). ..
- the adjacent first air flow path (36) and second air flow path (37) are partitioned by a partition member (40).
- the partition member (40) constituting the total heat exchange element (30) of the present embodiment is formed in a substantially square shape in a plan view.
- the moisture permeable membranes (42) of all the partition members (40) face the first air flow path (36) (see FIG. 3).
- the space holding member (32) is a corrugated plate-shaped member formed in a substantially square shape in a plan view.
- a plurality of mountain portions (32a) and valley portions (32b) having linear ridges are formed on the space holding member (32).
- the ridges of each mountain (32a) and each valley (32b) are substantially parallel to each other.
- the interval holding member (32) is formed with mountain portions (32a) and valley portions (32b) alternately.
- the space holding member (32) holds the space between the partition members (40) arranged on both sides thereof.
- the spacing members (32) adjacent to each other across the partition member (40) are arranged in such a posture that the ridgeline directions of the respective waveforms are substantially orthogonal to each other.
- the first air flow path (36) is opened on the pair of facing side surfaces of the total heat exchange element (30), and the second air flow is on the remaining pair of facing side surfaces.
- the road (37) opens.
- the total heat exchange element (30) different air flows through the first air flow path (36,121) and the second air flow path (37,151).
- the outdoor air (supply air) supplied to the room flows through the first air flow path (36,121) and the indoor air (exhaust) discharged to the outside.
- the second air flow path (37,151) Flows through the second air flow path (37,151).
- sensible heat and latent heat (moisture) are exchanged between the air flowing through the first air flow path (36,121) and the air flowing through the second air flow path (37,151).
- a functional material having an antifungal effect and an antibacterial effect on the entire surface of the partition member (40) facing the first air flow path (36) ( 46) is provided. Therefore, it is possible to suppress the growth of bacteria and mold in almost the entire part of the partition member (40) of the total heat exchange element (30) that is in contact with the air supply, and the air supply that passes through the total heat exchange element (30) can be suppressed. It can be kept clean.
- Embodiment 3 The third embodiment will be described.
- the present embodiment is a ventilation device (10) provided with the total heat exchange element (30) of the second embodiment.
- the ventilation device (10) includes a casing (15) for accommodating the total heat exchange element (30).
- the casing (15) is provided with an outside air suction port (16), an air supply port (17), an inside air suction port (18), and an exhaust port (19).
- an air supply side passage (21) and an exhaust side passage (22) are formed in the internal space of the casing (15).
- the outside air suction port (16) is connected to one end of the air supply side passage (21), and the air supply port (17) is connected to the other end.
- the exhaust side passage (22) has an inside air suction port (18) connected to one end thereof and an exhaust port (19) connected to the other end.
- the total heat exchange element (30) is arranged so as to cross the air supply side passage (21) and the exhaust side passage (22). Further, in the total heat exchange element (30), the first air flow path (36) communicates with the air supply side passage (21), and the second air flow path (37) communicates with the exhaust side passage (22). Then, it is installed in the casing (15).
- the ventilation device (10) is further equipped with an air supply fan (26) and an exhaust fan (27).
- the air supply fan (26) is arranged on the downstream side (that is, the air supply port (17) side) of the total heat exchange element (30) in the air supply side passage (21).
- the exhaust fan (27) is arranged on the downstream side (that is, the exhaust port (19) side) of the total heat exchange element (30) in the exhaust side passage (22).
- the outdoor air flows toward the room through the air supply side passage (21), and the outdoor air flows toward the outside through the exhaust side passage (22).
- the indoor air flowing through the air supply side passage (21) and the indoor air flowing through the exhaust side passage (22) exchange sensible heat and moisture (latent heat) in the total heat exchange element (30).
- the ventilation device (10) of the present embodiment includes the total heat exchange element (30) of the second embodiment.
- the total heat exchange element (30) of the second embodiment the growth of bacteria and mold is suppressed in almost the entire portion of the partition member (40) in contact with the air supply. Therefore, according to the present embodiment, the supply air that has passed through the total heat exchange element (30) and is supplied to the room can be kept clean for a long period of time.
- Embodiment 4 The fourth embodiment will be described.
- This embodiment is a total heat exchange element (30) provided with the partition member (40) of the first embodiment.
- the total heat exchange element (30) of the present embodiment is provided in the ventilation device (10) of the third embodiment, similarly to the total heat exchange element (30) of the second embodiment, and sensible heat is generated between the supply air and the exhaust air. And latent heat (moisture) are exchanged.
- the total heat exchange element (30) has an end face formed into a polygonal columnar shape.
- the end face of the total heat exchange element (30) of the present embodiment has a horizontally long octagonal shape.
- the total heat exchange element (30) is formed with one main heat exchange unit (111) and two sub heat exchange units (112a, 112b).
- the main heat exchange unit (111) is located in the center of the total heat exchange element (30) in the left-right direction in FIG.
- the main heat exchange portion (111) is a horizontally long rectangular portion.
- the sub heat exchange unit (112a, 112b) is located on the side of the main heat exchange unit (111) in the left-right direction of FIG. 6 in the total heat exchange element (30).
- one sub heat exchange unit (112a, 112b) is arranged on both sides of the main heat exchange unit (111) in the left-right direction of FIG.
- each sub-heat exchange unit (112a, 112b) is a trapezoidal portion.
- the total heat exchange element (30) includes a plurality of first elements (120) and a plurality of second elements (150).
- the first element (120) and the second element (150) are alternately overlapped with each other.
- the first element (120) forms the first air flow path (121).
- the first air flow path (121) is a flow path through which supply air flows.
- the second element (150) forms the second air flow path (151).
- the second air flow path (151) is a flow path through which the exhaust gas flows.
- the first air flow path (121) and the second air flow path (151) are alternately formed in the stacking direction of the first element (120) and the second element (150). ..
- the first inlet (122a) and the first outlet (122b) are on the side surface of the total heat exchange element (30) (the surface along the stacking direction of the first element (120) and the second element (150)).
- a second inlet (152a) and a second outlet (152b) are formed.
- the first inlet (122a) and the first outlet (122b) are formed in the first element (120) and communicate with the first air flow path (121).
- the second inlet (152a) and the second outlet (152b) are formed in the second element (150) and communicate with the second air flow path (151).
- the first inlet (122a), the first outlet (122b), the second inlet (152a), and the second outlet (152b) are each. It is formed on different sides of the total heat exchange element (30).
- the first inflow port (122a) opens on one side surface and the second outflow port (152b) opens on the other side surface.
- the first outlet (122b) opens on one side surface and the second inlet (152a) opens on the other side surface.
- the first element (120) includes the first frame (125) and the partition member (40) of the first embodiment
- the second element (150) includes the second frame (155).
- the partition member (40) of the first embodiment is provided.
- Each of the first frame (125) and the second frame (155) is a flat member made of resin formed by injection molding.
- the first frame (125) and the second frame (155) are spacing members that maintain the spacing between adjacent partitioning members (40).
- Each of the first frame (125) and the second frame (155) is formed into a horizontally long octagonal shape in a plan view (see FIG. 7).
- the outer shape of each frame (125,155) in a plan view is substantially the same as the shape of the end face of the total heat exchange element (30).
- the partition member (40) covers almost the entire one surface (lower surface in FIG. 8) of the first frame (125). In the first element (120), the partition member (40) is adhered to the first frame (125) with the moisture permeable membrane (42) facing the first frame (125) side. In the first element (120), the moisture permeable membrane (42) of the partition member (40) faces the first air flow path (121) formed by the first element (120).
- the partition member (40) covers almost the entire one surface (lower surface in FIG. 8) of the second frame (155).
- the partition member (40) is adhered to the second frame (155) with the second surface (41b) of the porous base material (41) facing the second frame (155) side. Will be done.
- the moisture permeable membrane (42) of the partition member (40) is the first air flow path (121) formed by the first element (120) adjacent to the second element (150). Facing.
- the outdoor air OA flows into the first inflow port (122a), and the indoor air RA flows into the second inflow port (152a).
- the outdoor air OA that has flowed into the first inflow port (122a) flows through the first air flow path (121) as supply air, and has one auxiliary heat exchange section (112a), one main heat exchange section (111), and the other. It passes through the secondary heat exchange section (112b) in order, and then flows out from the first outlet (122b) and is supplied into the room.
- each sub-heat exchange section (112a, 112b) of the total heat exchange element (30) of the supply air flowing through the first air flow path (121) and the exhaust gas flowing through the second air flow path (151) intersect each other. Flow in the direction.
- the air supply flowing through the first air flow path (121) and the exhaust gas flowing through the second air flow path (151) flow in opposite directions to each other.
- the total heat exchange element (30) sensible heat and latent heat (moisture) are exchanged between the supply air flowing through the first air flow path (121) and the exhaust gas flowing through the second air flow path (151). ..
- heat is transferred from the higher temperature side of the supply air and the exhaust gas to the lower temperature side.
- moisture moves from the higher humidity side to the lower humidity side of the supply air and the exhaust gas.
- the total heat exchange element (30) of the present embodiment the supply air flowing through the first air flow path (121) and the exhaust flowing through the second air flow path (151) are mainly in the main heat exchange section (111). Exchange sensible heat and latent heat. Therefore, the total heat exchange element (30) of the present embodiment is a countercurrent type heat exchanger.
- the entire surface of the partition member (40) facing the first air flow path (121) is a functional material (antibacterial and antibacterial). 46) is provided. Therefore, it is possible to suppress the growth of bacteria and mold in almost the entire part of the partition member (40) of the total heat exchange element (30) that is in contact with the air supply, and the air supply that passes through the total heat exchange element (30) can be suppressed. It can be kept clean.
- the structure of the partition member (40) for the total heat exchange element is not limited to the structure of the partition member (40) of the first embodiment.
- the partition member (40) shown in FIG. 9 includes one porous base material (41) and two moisture permeable membranes (42).
- one moisture permeable membrane (42) covers the first surface (41a) of the partition member (40), and the other moisture permeable membrane (42) is the second surface of the partition member (40). Cover (41b).
- the partition member (40) shown in FIG. 10 a part of the moisture permeable membrane (42) has penetrated into the porous base material (41).
- the aqueous composition for forming the moisture permeable membrane (42) is infiltrated into the inside of the porous substrate (41).
- a part of the moisture permeable membrane (42) covers the first surface (41a) of the porous base material (41), and the remaining part is made of the porous base material (41). Get inside.
- the entire moisture permeable membrane (42) has penetrated into the porous base material (41).
- an aqueous composition for forming a moisture permeable membrane (42) is injected into the inside of the porous substrate (41).
- a moisture permeable film (42) is formed in the central portion of the porous substrate (41) in the thickness direction.
- the partition member (40) shown in FIG. 12 includes two porous base materials (41) and one moisture permeable membrane (42).
- one porous substrate (41) is provided on each side of the moisture permeable membrane (42) in the thickness direction.
- One side of the moisture permeable membrane (42) of the partition member (40) is in contact with the first surface (41a) of one porous base material (41), and the other side is the other porous base material. It is in contact with the second surface (41b) of (41).
- the structure of the partition member (40) for the total heat exchange element is not limited to the structure of the partition member (40) of the first embodiment.
- the partition member (40) may include a functional membrane (45) containing a functional material (46) in addition to the porous base material (41) and the moisture permeable membrane (42).
- the moisture permeable membrane (42) of the partition member (40) of this modification does not contain the functional material (46).
- the functional membrane (45) is provided so as to cover the entire surface of the moisture permeable membrane (42).
- the functional film (45) is a film containing the functional material (46).
- the thickness of the functional membrane (45) is, for example, 0.5 ⁇ m.
- the functional membrane (45) is thinner than the moisture permeable membrane (42).
- the functional membrane (45) may be provided between the partition member (40) and the moisture permeable membrane (42).
- the functional membrane (45) is provided so as to cover the first surface (41a) of the partition member (40), and the moisture permeable membrane (42) is provided so as to cover the surface of the functional membrane (45).
- the functional film (45) may be provided so as to cover the second surface (41b) of the partition member (40).
- the functional membrane (45) covers the surface of the partition member (40) opposite to the moisture permeable membrane (42).
- FIG. 16 shows an example of the present modification applied to the total heat exchange element (30) of the second embodiment.
- the second surface (41b) of the porous base material (41) of the partition member (40) faces the first air flow path (36,121) through which the supply air flows.
- the moisture permeable membrane (42) of the partition member (40) faces the second air flow path (37,151) through which the exhaust gas flows.
- the partition member (40) facing the flow path (37,151) may be mixed.
- the partition member (40) in which the moisture permeable membrane (42) faces the first air flow path (36, 121) and the moisture permeable membrane (42) are the second air.
- the partition members (40) facing the flow path (37,151) are alternately arranged in the stacking direction of the partition member (40) and the spacing member (32125,155). Note that FIG. 17 shows an example in which the present modification is applied to the total heat exchange element (30) of the second embodiment.
- the partition member (40) of each of the above-described embodiments and modifications is provided with zinc pyrithione (C 10 H 8 N 2 O 2 S 2 Zn) as a functional material (46) having an antifungal action and an antibacterial action. You may. Zinc pyrithione as a functional material (46) is dispersed in a moisture permeable membrane (42) or a functional membrane (45) in the form of fine particles.
- the particle diameter (for example, major axis diameter) of the fine particles which is the functional material (46) is larger than the thickness of the moisture permeable membrane (42). Is also desirable to be small. If the particle size of the fine particles of the functional material (46) is smaller than the thickness of the moisture permeable membrane (42), even if the functional material (46) falls off from the moisture permeable membrane (42) for some reason, it is permeable. The airtightness of the wet film (42) is maintained.
- partition member (40) of each of the above-described embodiments and modifications is a quaternary ammonium salt-based antiviral agent (for example, 3- (triethoxysilyl)) as a functional material (46) having an antiviral effect. It may be equipped with propyldimethyloctadecylammonium chloride).
- the present disclosure is useful for a partition member for a total heat exchange element, a total heat exchange element provided with the partition member, and a ventilation device provided with the total heat exchange element.
- Ventilator 32 Spacing member 36 1st air flow path 37 2nd air flow path 40 Partition member for total heat exchange element 41 Porous base material 41a (porous base material) 1st surface 42 Moisture permeable membrane 45 Functional membrane 46 Functional material 121 1st air flow path 125 1st frame (interval holding member) 151 2nd air flow path 155 2nd frame (spacing member)
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Abstract
Description
実施形態1について説明する。本実施形態は、全熱交換素子用仕切部材(40)である。
多孔質基材(41)は、例えばポリオレフィン系樹脂からなる多孔質のシート状の部材である。多孔質基材(41)は、繊維状の樹脂からなる不織布であってもよい。多孔質基材(41)の厚さは、例えば10μmである。多孔質基材(41)は、透湿膜(42)の支持体となる要素であり、透湿性に優れるものであることが好ましい。
透湿膜(42)は、多孔質基材(41)の第1面(41a)の全体を覆う被膜である。透湿膜(42)は、透湿性を有する重合体によって構成される。透湿膜(42)を構成する重合体は、第1構成単位と第2構成単位とを有する共重合体である。透湿膜(42)の厚さは、例えば1μmである。透湿膜(42)の厚さは、特に限定されないが、0.05~1μmが好ましく、より好ましくは0.1~0.5μmである。透湿膜(42)の厚さが0.05μm以上であると、製膜性が良好となり、ガスバリア性向上に繋がる。上記厚さが1μm以下であると、透湿性がより良好となる。
本実施形態の仕切部材(40)では、多孔質基材(41)の第1面(41a)の全体を覆う透湿膜(42)が、防カビ作用と抗菌作用とを奏する機能材料(46)を含有する。そのため、仕切部材(40)の全体において細菌とカビの繁殖を抑えることができ、仕切部材(40)の全体を清潔に保つことができる。
本実施形態の仕切部材(40)の透湿膜(42)には、機能材料(46)であるナトリウムピリチオンが、分子の状態で実質的に均一に分布している。そのため、仕切部材(40)の全体において細菌とカビの繁殖を抑えることができ、仕切部材(40)の全体を清潔に保つことができる。
本実施形態の透湿膜(42)が機能材料(46)として含有するナトリウムピリチオンは、透湿膜(42)における濃度が概ね4ppm程度であっても、充分な防カビ作用と抗菌作用とを奏する。
ここで、機能材料(46)が粒子(固体)の状態で透湿膜(42)に含有される場合は、機能材料(46)が透湿膜(42)から脱落するおそれがある。機能材料(46)が透湿膜(42)から脱落すると、機能材料(46)が存在していた部分が空隙になる。そのため、機能材料(46)の粒径が透湿膜(42)の厚さよりも大きい場合において、機能材料(46)が透湿膜(42)から脱落すると、透湿膜(42)を厚さ方向に貫通する空隙が透湿膜(42)に形成される。このような空隙が透湿膜(42)に形成されると、仕切部材(40)の両側を流れる空気が、この透湿膜(42)の空隙を通って混ざり合うため、仕切部材(40)の気密性が損なわれる。
実施形態2について説明する。本実施形態は、実施形態1の仕切部材(40)を備えた全熱交換素子(30)である。
本実施形態の全熱交換素子(30)では、仕切部材(40)の表面のうち第1空気流路(36)に面する部分の全体に、防カビ作用と抗菌作用とを奏する機能材料(46)が設けられる。そのため、全熱交換素子(30)の仕切部材(40)のうち給気と接する部分のほぼ全体において細菌とカビの繁殖を抑えることができ、全熱交換素子(30)を通過する給気を清浄な状態に保つことができる。
実施形態3について説明する。本実施形態は、実施形態2の全熱交換素子(30)を備えた換気装置(10)である。
本実施形態の換気装置(10)は、実施形態2の全熱交換素子(30)を備える。実施形態2の全熱交換素子(30)では、仕切部材(40)のうち給気と接する部分のほぼ全体において細菌とカビの繁殖が抑えられる。従って、本実施形態によれば、全熱交換素子(30)を通過して室内へ供給される給気を、長期間にわたって清潔に保つことができる。
実施形態4について説明する。本実施形態は、実施形態1の仕切部材(40)を備えた全熱交換素子(30)である。本実施形態の全熱交換素子(30)は、実施形態2の全熱交換素子(30)と同様に、実施形態3の換気装置(10)に設けられ、給気と排気の間で顕熱と潜熱(水分)とを交換させる。
図5に示すように、全熱交換素子(30)は、端面が多角形の柱状に形成される。本実施形態の全熱交換素子(30)の端面は、横長の八角形状である。図6にも示すように、全熱交換素子(30)には、一つの主熱交換部(111)と、二つの副熱交換部(112a,112b)とが形成される。
図6に示すように、全熱交換素子(30)では、第1流入口(122a)へ室外空気OAが流入し、第2流入口(152a)に室内空気RAが流入する。第1流入口(122a)へ流入した室外空気OAは、給気として第1空気流路(121)を流れ、一方の副熱交換部(112a)と、主熱交換部(111)と、他方の副熱交換部(112b)とを順に通過し、その後に第1流出口(122b)から流出して室内へ供給される。第2流入口(152a)へ流入した室内空気RAは、排気として第2空気流路(151)を流れ、他方の副熱交換部(112b)と、主熱交換部(111)と、一方の副熱交換部(112a)とを順に通過し、その後に第2流出口(152b)から流出して室外へ排出される。
本実施形態の全熱交換素子(30)では、仕切部材(40)の表面のうち第1空気流路(121)に面する部分の全体に、防カビ作用と抗菌作用とを奏する機能材料(46)が設けられる。そのため、全熱交換素子(30)の仕切部材(40)のうち給気と接する部分のほぼ全体において細菌とカビの繁殖を抑えることができ、全熱交換素子(30)を通過する給気を清浄な状態に保つことができる。
-第1変形例-
全熱交換素子用仕切部材(40)の構造は、実施形態1の仕切部材(40)の構造に限定されない。
全熱交換素子用仕切部材(40)の構造は、実施形態1の仕切部材(40)の構造に限定されない。
図16に示すように、実施形態2及び4の全熱交換素子(30)は、全ての仕切部材(40)の透湿膜(42)が第2空気流路(37,151)に面していてもよい。なお、図16は、実施形態2の全熱交換素子(30)に本変形例を適用したものを示す。
実施形態2及び4の全熱交換素子(30)では、透湿膜(42)が第1空気流路(36,121)に面する仕切部材(40)と、透湿膜(42)が第2空気流路(37,151)に面する仕切部材(40)とが、混在していてもよい。
上述した各実施形態および各変形例の仕切部材(40)は、防カビ作用と抗菌作用とを奏する機能材料(46)として、ジンクピリチオン(C10H8N2O2S2Zn)を備えていてもよい。機能材料(46)としてのジンクピリチオンは、微粒子の状態で透湿膜(42)又は機能膜(45)の中に分散する。
32 間隔保持部材
36 第1空気流路
37 第2空気流路
40 全熱交換素子用仕切部材
41 多孔質基材
41a (多孔質基材の)第1面
42 透湿膜
45 機能膜
46 機能材料
121 第1空気流路
125 第1フレーム(間隔保持部材)
151 第2空気流路
155 第2フレーム(間隔保持部材)
Claims (8)
- シート状の多孔質基材(41)と、
上記多孔質基材(41)に設けられた透湿膜(42)と、
防カビ作用と抗菌作用と抗ウイルス作用の少なくとも一つを奏する機能材料(46)とを備え、
上記透湿膜(42)が上記機能材料(46)を含有する
ことを特徴とする全熱交換素子用仕切部材。 - 請求項1において、
上記機能材料(46)は、上記透湿膜(42)の厚さよりも小さい
ことを特徴とする全熱交換素子用仕切部材。 - シート状の多孔質基材(41)と、
上記多孔質基材(41)に設けられた透湿膜(42)と、
防カビ作用と抗菌作用と抗ウイルス作用の少なくとも一つを奏する機能材料(46)を含有し、上記多孔質基材(41)又は上記透湿膜(42)の表面を覆う機能膜(45)とを備える
ことを特徴とする全熱交換素子用仕切部材。 - 請求項3において、
上記機能膜(45)は、上記透湿膜(42)よりも薄い
ことを特徴とする全熱交換素子用仕切部材。 - 請求項1乃至4のいずれか一つにおいて、
上記透湿膜(42)は、上記多孔質基材(41)の表面を覆うように設けられ、
上記多孔質基材(41)の上記透湿膜(42)に覆われる面に親水化処理が施されている
ことを特徴とする全熱交換素子用仕切部材。 - 請求項1乃至5のいずれか一つにおいて、
上記機能材料(46)は、分子構造にピリチオンを有する物質である
ことを特徴とする全熱交換素子用仕切部材。 - 請求項1乃至6のいずれか一つに記載の全熱交換素子用仕切部材(40)を複数備えると共に、
積層された上記全熱交換素子用仕切部材(40)の間に配置されて隣り合う上記全熱交換素子用仕切部材(40)の間隔を保持する間隔保持部材(32,125,155)を備え、
第1空気流路(36,121)と第2空気流路(37,151)とが上記全熱交換素子用仕切部材(40)を挟んで交互に形成される
ことを特徴とする全熱交換素子。 - 請求項7に記載の全熱交換素子(30)を備え、
室外から室内へ供給される給気が上記全熱交換素子(30)の上記第1空気流路(36,121)を流れ、室内から室外へ排出される排気が上記全熱交換素子(30)の上記第2空気流路(37,151)を流れる
ことを特徴とする換気装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021351332A AU2021351332B2 (en) | 2020-09-30 | 2021-09-27 | Partitioning member for total heat exchange elements, total heat exchange element, and ventilation apparatus |
CA3191091A CA3191091A1 (en) | 2020-09-30 | 2021-09-27 | Partitioning member for total heat exchange elements, total heat exchange element, and ventilation apparatus |
CN202180062636.7A CN116648592A (zh) | 2020-09-30 | 2021-09-27 | 全热交换元件用分隔部件、全热交换元件及换气装置 |
EP21875468.7A EP4191187A1 (en) | 2020-09-30 | 2021-09-27 | Partitioning member for total heat exchange elements, total heat exchange element, and ventilation apparatus |
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US20230204307A1 (en) | 2023-06-29 |
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CA3191091A1 (en) | 2022-04-07 |
CN116648592A (zh) | 2023-08-25 |
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