WO2021039064A1 - Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur l'utilisant - Google Patents

Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur l'utilisant Download PDF

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Publication number
WO2021039064A1
WO2021039064A1 PCT/JP2020/024533 JP2020024533W WO2021039064A1 WO 2021039064 A1 WO2021039064 A1 WO 2021039064A1 JP 2020024533 W JP2020024533 W JP 2020024533W WO 2021039064 A1 WO2021039064 A1 WO 2021039064A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
exchange element
rib
transfer plate
air
Prior art date
Application number
PCT/JP2020/024533
Other languages
English (en)
Japanese (ja)
Inventor
元気 畑
洋祐 浜田
正人 本多
栄作 熊澤
雅理 村松
Original Assignee
パナソニックＩｐマネジメント株式会社
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
Priority claimed from JP2019155129A external-priority patent/JP2021032523A/ja
Priority claimed from JP2019157590A external-priority patent/JP2021036177A/ja
Priority claimed from JP2019172408A external-priority patent/JP2021050833A/ja
Priority claimed from JP2019196076A external-priority patent/JP2021071206A/ja
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202080042346.1A priority Critical patent/CN113966452A/zh
Publication of WO2021039064A1 publication Critical patent/WO2021039064A1/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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • 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
    • 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
    • F28D9/0068—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 with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
    • 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
    • F28D9/02—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 heat-exchange media travelling at an angle to one another
    • 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
    • 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
    • F28F21/003—Constructions of heat-exchange apparatus characterised by the selection of particular materials for domestic or space-heating systems
    • 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
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • 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
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies

Definitions

  • the present disclosure is a heat exchange element used in a cold region or the like, which exchanges heat between an exhaust flow that exhausts indoor air to the outside and a supply air flow that supplies outdoor air to the room, and heat using the same. It relates to a replaceable ventilation system.
  • FIG. 7 is an exploded perspective view showing the structure of the conventional heat exchange element 11.
  • the conventional heat exchange element 11 is configured by laminating a large number of heat exchange element single units 12 composed of functional paper 13 having heat transfer properties and ribs 14.
  • a plurality of ribs 14 composed of a paper string 15 and a hot melt resin 16 for adhering the paper string 15 to the functional paper 13 are provided in parallel at predetermined intervals.
  • the ribs 14 form a gap between a pair of functional papers 13 laminated vertically adjacent to each other to form an air flow path 17.
  • the heat exchange element 11 is formed so that a plurality of gaps are laminated, and the air flow directions of the respective air flow paths 17 in the adjacent gaps are configured to be orthogonal to each other.
  • the air flow path 17 is alternately ventilated with the air supply air flow and the exhaust air flow for each functional paper 13, and heat exchange is performed between the air supply air flow and the exhaust flow.
  • Such a conventional heat exchange element is manufactured by alternately stacking a large number of unit constituent members (for example, the above-mentioned heat exchange element single body 12) so as to be orthogonal to each other, and then compressing them in the stacking direction.
  • the unit constituent member is a partition member (for example, the above-mentioned functional paper 13) on one surface of which a substantially circular fiber member (for example, the above-mentioned paper string 15) is bonded to an adhesive member (for example, the above-mentioned hot melt resin).
  • An interval holding member for example, the rib 14 described above
  • the partition member and the fiber member absorb moisture in the air and change in size, so that the adhesive portion between the partition member and the interval holding member may be partially peeled off. ..
  • the unit constituent members to be laminated include a partially peeled unit constituent member, the air passage is partially crushed when the unit constituent members are laminated, and the air flowing through the heat exchange element is biased. This causes a problem that the heat exchange efficiency is lowered.
  • the heat exchange element according to the present disclosure has heat transfer properties and extends along the fiber direction on one surface of a sheet-shaped partition member whose fiber direction is directed in a certain direction and the partition member. It is characterized in that the unit constituent members including the separated spacing members are laminated in the vertical direction to alternately form the exhaust air passage and the air supply air passage layer by layer.
  • the heat exchange type ventilator according to the present disclosure is characterized in that the above heat exchange element is mounted.
  • the adhesive peeling between the partition member constituting the unit constituent member and the interval holding member caused by the dimensional change of the partition member due to moisture absorption occurs. It is possible to suppress the blockage of each air passage due to.
  • FIG. 1 is a schematic view showing an installation state of the heat exchange type ventilation device according to the first embodiment of the present disclosure in a house.
  • FIG. 2 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 3 is an exploded perspective view showing the structure of the heat exchange element used in the heat exchange type ventilator.
  • FIG. 4 is a perspective view of a heat exchange element piece constituting the heat exchange element.
  • FIG. 5 is a diagram showing a state in which the heat transfer plate constituting the heat exchange element piece absorbs moisture and stretches.
  • FIG. 6 is a diagram for explaining a method of manufacturing the same heat exchange element.
  • FIG. 7 is an exploded perspective view showing the structure of a conventional heat exchange element.
  • FIG. 1 is a schematic view showing an installation state of the heat exchange type ventilation device according to the first embodiment of the present disclosure in a house.
  • FIG. 2 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 3 is an exploded perspective view showing the structure of
  • FIG. 8 is a schematic view showing an installation state of the heat exchange type ventilation device according to the second embodiment of the present disclosure in a house.
  • FIG. 9 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 10 is an exploded perspective view showing the structure of the heat exchange element used in the heat exchange type ventilator.
  • FIG. 11 is a partial cross-sectional view showing the structure of the ribs constituting the heat exchange element.
  • FIG. 12 is a diagram for explaining a method of manufacturing the same heat exchange element.
  • FIG. 13 is an exploded perspective view showing a method of manufacturing the heat exchange element.
  • FIG. 14 is a diagram for explaining a problem of a conventional method for manufacturing a heat exchange element.
  • FIG. 15 is an exploded perspective view showing a method of manufacturing a heat exchange element according to a modified example.
  • FIG. 16 is an exploded perspective view showing the structure of a conventional heat exchange element.
  • FIG. 17 is a schematic view showing an installation state of the heat exchange type ventilation device according to the third embodiment of the present disclosure in a house.
  • FIG. 18 is a schematic view showing the structure of the heat exchange type ventilator according to the third embodiment of the present disclosure.
  • FIG. 19 is a perspective view showing the structure of the heat exchange element according to the third embodiment of the present disclosure.
  • FIG. 20 is a diagram showing the structure of ribs constituting the heat exchange element.
  • FIG. 21 is a perspective view of a heat exchange element piece constituting the heat exchange element.
  • FIG. 22 is a partial cross-sectional view of the heat exchange element pieces in a laminated state.
  • FIG. 23 is a perspective view of a conventional heat exchange element.
  • FIG. 24 is a schematic view showing an installation state of the heat exchange type ventilation device according to the fourth embodiment of the present disclosure in a house.
  • FIG. 25 is a schematic view showing the structure of the heat exchange type ventilator according to the fourth embodiment of the present disclosure.
  • FIG. 26 is a perspective view showing the structure of the heat exchange element according to the fourth embodiment of the present disclosure.
  • FIG. 27 is a diagram showing the structure of ribs constituting the heat exchange element according to the fourth embodiment of the present disclosure.
  • FIG. 28 is a diagram for comparing and explaining the arrangement of ribs of the heat exchange element pieces constituting the heat exchange element.
  • FIG. 29 is a plan view of the heat exchange element piece according to the modified example.
  • FIG. 30 is a perspective view of a conventional heat exchange element.
  • the heat exchange element according to the present disclosure has heat transfer properties and is extended along the fiber direction on one surface of a sheet-shaped partition member whose fiber direction is directed in a certain direction and the partition member. It is characterized in that unit constituent members including spacing members are laminated in the vertical direction to alternately form exhaust air passages and air supply air passages one layer at a time.
  • the heat exchange element according to the present disclosure is provided with an interval holding member extending along the fiber direction on one surface of the partition member constituting the unit constituent member, so that the size of the partition member changes due to moisture absorption.
  • the effect on the interval holding member can be made smaller. Therefore, the heat exchange element according to the present disclosure can suppress adhesive peeling between the partition member and the interval holding member. Therefore, in the case where the unit constituent members are laminated in the vertical direction to alternately form the exhaust air passage and the air supply air passage layer by layer, each air passage is partially blocked in the heat exchange element according to the present disclosure. It can be suppressed.
  • the interval holding member may be formed by twisting a plurality of fiber members.
  • the tension of the space-holding member is increased by twisting the fiber member, the dimensional change of the space-holding member due to moisture absorption is suppressed, and the space-holding member is between the partition member and the space-holding member. It is possible to suppress blockage of the air passage due to adhesive peeling.
  • the interval holding member and the partition member may be fixed by an adhesive member.
  • the adhesive force between the partition member and the spacing member increases, and the partition member and the spacing member are separated from each other due to the dimensional change of the partition member due to moisture absorption. Adhesive peeling between can be suppressed. Therefore, the heat exchange element according to the present disclosure can suppress blockage of the air passage due to adhesive peeling between the partition member and the interval holding member.
  • the interval holding member may have higher hygroscopicity than the partition member. According to such a configuration, in the heat exchange element according to the present disclosure, since the spacing member absorbs moisture, the dimensional change of the partition member is suppressed, so that each of the heat exchange elements is caused by adhesive peeling between the partition member and the spacing member. Blockage of the air passage can be suppressed.
  • the heat exchange type ventilation device is configured to be equipped with the above-mentioned heat exchange element. Therefore, in the heat exchange type ventilator according to the present disclosure, the air passages of each air passage are peeled off due to adhesive peeling between the partition member constituting the unit constituent member and the spacing member, which is caused by the dimensional change of the partition member due to moisture absorption. Occlusion can be suppressed.
  • FIG. 1 is a schematic view showing an installation state of a heat exchange type ventilator 102 including a heat exchange element 106 according to the first embodiment of the present disclosure.
  • FIG. 2 is a schematic view showing the structure of the heat exchange type ventilator 102.
  • a heat exchange type ventilation device 102 is installed indoors of the house 101.
  • the heat exchange type ventilator 102 is a device that ventilates while exchanging heat between indoor air and outdoor air.
  • the exhaust flow 103 is discharged to the outside via the heat exchange type ventilator 102 as shown by the black arrow.
  • the exhaust flow 103 is a flow of air discharged from indoors to outdoors.
  • the air supply air flow 104 is taken into the room via the heat exchange type ventilation device 102 as shown by the white arrow.
  • the air supply 104 is a flow of air taken in from the outside to the inside.
  • the exhaust flow 103 is 20 ° C to 25 ° C, while the airflow 104 may reach below freezing.
  • the heat exchange type ventilation device 102 ventilates and transfers the heat of the exhaust flow 103 to the supply airflow 104 at the time of this ventilation to suppress the release of unnecessary heat.
  • the heat exchange type ventilation device 102 includes a main body case 105, a heat exchange element 106, an exhaust fan 107, an inside air port 108, an exhaust port 109, an air supply fan 110, an outside air port 111, and an air supply port 112. ing.
  • the main body case 105 is an outer frame of the heat exchange type ventilator 102.
  • An inside air port 108, an exhaust port 109, an outside air port 111, and an air supply port 112 are formed on the outer periphery of the main body case 105.
  • the inside air port 108 is a suction port for sucking the exhaust flow 103 into the heat exchange type ventilation device 102.
  • the exhaust port 109 is a discharge port that discharges the exhaust flow 103 from the heat exchange type ventilation device 102 to the outside.
  • the outside air port 111 is a suction port for sucking the air supply air flow 104 into the heat exchange type ventilation device 102.
  • the air supply port 112 is a discharge port that discharges the air supply air flow 104 indoors from the heat exchange type ventilation device 102.
  • a heat exchange element 106, an exhaust fan 107, and an air supply fan 110 are mounted inside the main body case 105.
  • the heat exchange element 106 is a member for exchanging heat between the exhaust flow 103 and the supply airflow 104.
  • the exhaust fan 107 is a blower for sucking the exhaust flow 103 from the inside air port 108 and discharging it from the exhaust port 109.
  • the air supply fan 110 is a blower for sucking the air supply air flow 104 from the outside air port 111 and discharging it from the air supply port 112.
  • the exhaust flow 103 sucked from the inside air port 108 by driving the exhaust fan 107 is discharged to the outside from the exhaust port 109 via the heat exchange element 106 and the exhaust fan 107.
  • the air supply 104 sucked from the outside air port 111 by driving the air supply fan 110 is supplied indoors from the air supply port 112 via the heat exchange element 106 and the air supply fan 110.
  • FIG. 3 is an exploded perspective view showing the structure of the heat exchange element 106 used in the heat exchange type ventilator 102.
  • FIG. 4 is a perspective view of the heat exchange element piece 115 constituting the heat exchange element 106.
  • the heat exchange element 106 is composed of a plurality of heat exchange element pieces 115.
  • a plurality of ribs 114 are adhered to each heat exchange element piece 115 on one surface of a substantially square heat transfer plate 113.
  • the heat exchange element 106 is formed by stacking a plurality of heat exchange element pieces 115 in which the ribs 114 are alternately oriented one step at a time so as to be orthogonal to each other.
  • an exhaust air passage 116 through which the exhaust flow 103 ventilates and an air supply air passage 117 through which the air supply airflow 104 ventilates are formed, and the exhaust airflow 103 and the air supply airflow 104 flow alternately at right angles to each other. It has become possible to exchange heat between them.
  • the heat exchange element piece 115 is one unit constituting the heat exchange element 106. As described above, the heat exchange element piece 115 is formed by adhering a plurality of ribs 114 on one surface of a substantially square heat transfer plate 113. The rib 114 on the heat transfer plate 113 is formed so that its longitudinal direction is directed from one end side of the heat transfer plate 113 to the end side facing the rib 114. Each of the ribs 114 is formed in a straight line. Each of the ribs 114 is arranged in parallel on the surface of the heat transfer plate 113 at predetermined intervals. Specifically, as shown in FIG.
  • the rib 114 is placed on one surface of the heat transfer plate 113 constituting one of the heat exchange element pieces 115. Is formed by adhering so that the longitudinal direction of the heat transfer plate 113 is directed from the end side 113a of the heat transfer plate 113 toward the opposite end side 113c. Further, on one surface of the heat transfer plate 113 constituting the other heat exchange element piece 115, the longitudinal direction of the rib 114 is from the end side 113b (the end side perpendicular to the end side 113a) of the heat transfer plate 113. It is formed by adhering so as to face the opposite end sides 113d.
  • the heat transfer plate 113 is a thin sheet having heat transfer properties for exchanging heat when the exhaust flow 103 and the air supply air flow 104 flow across the heat transfer plate 113, and has a property of not allowing gas to permeate. Can be used.
  • the heat transfer plate 113 is formed of heat transfer paper based on cellulose fibers, has heat transfer property, moisture permeability, and hygroscopic property, and can obtain a heat exchange element 106 that exchanges heat and moisture.
  • the material of the heat transfer plate 113 is not limited to this.
  • the heat transfer plate 113 since the heat transfer plate 113 is manufactured while flowing the pulp in a certain direction, the cellulose fibers constituting the heat transfer plate 113 are aligned in the direction in which the pulp flows.
  • the direction in which the cellulose fibers are aligned is referred to as the fiber direction 130. That is, the heat exchange element 106 has a heat transfer property, and includes a sheet-shaped heat transfer plate 113 in which the fiber direction 130 is directed in a certain direction.
  • the fiber direction 130 is directed in a certain direction is not limited to the case where all the cellulose fibers constituting the heat transfer plate 113 are completely oriented in a constant direction, and the heat transfer plate 113 is not limited to the case where all the cellulose fibers are oriented in a completely constant direction.
  • the fiber directions of the cellulose fibers constituting the heat transfer plate 113 are generally directed to a certain direction to the extent that the pulp is aligned by this manufacturing method. It is also included if there is.
  • the heat transfer plate 113 absorbs moisture, it expands in a direction orthogonal to the fiber direction 130 on the plane of the heat transfer plate 113 constituting the heat exchange element piece 115. That is, the heat transfer plate 113 expands in a direction orthogonal to the extending direction (longitudinal direction) of the ribs 114 constituting the same heat exchange element piece 115. Details will be described later.
  • the plurality of ribs 114 are provided between a pair of opposite end sides of the heat transfer plate 113, and are formed so as to go from one end side to the other end side.
  • the rib 114 is a member for forming a gap for passing an exhaust flow 103 or an air flow 104 between the heat transfer plates 113 when the heat transfer plates 113 are stacked, that is, an exhaust air passage 116 or an air supply air passage 117. .. That is, the heat exchange element 106 includes ribs 114 extending along the fiber direction 130 of the heat transfer plate 113 on one surface of the heat transfer plate 113.
  • each of the plurality of ribs 114 has a substantially circular cross section.
  • the rib 114 is formed by twisting a plurality of fiber members 140, and is fixed on the heat transfer plate 113 by an adhesive member 141.
  • the rib 114 has an adhesive member 141 on the surface layer, and is configured by impregnating each minute gap of the fiber member 140 with the adhesive member 141.
  • Each of the fiber members 140 has a substantially circular cross section and is a fiber member extending in the same direction as the rib 114.
  • the material of the fiber member 140 it is sufficient that it has a higher hygroscopicity than the heat transfer plate 113 and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber, cotton, silk, or linen can be used as the material of the fiber member 140.
  • FIG. 5 is a diagram showing a state in which the heat transfer plate 113 constituting the heat exchange element piece 115 absorbs moisture and stretches.
  • (a) to (d) of the figure are the heat exchange element pieces 115a and the first embodiment according to the comparative example in which the extending directions of the ribs 114 are different from the fiber directions 130 of the heat transfer plate 113.
  • the heat transfer plate 113 absorbs moisture and stretches in each of the heat exchange element pieces 115.
  • FIG. 5A shows a heat exchange element piece according to a comparative example in which ribs 114 are arranged on one surface of the heat transfer plate 113 in a direction orthogonal to the fiber direction 130 of the heat transfer plate 113.
  • the state of 115a is shown.
  • FIG. 5B shows a cross section of the heat exchange element piece 115a according to the comparative example along the XX line in FIG. 5A.
  • FIG. 5C shows the heat exchange element piece 115 according to the first embodiment in which the ribs 114 are arranged on one surface of the heat transfer plate 113 along the fiber direction 130 of the heat transfer plate 113. It shows the situation.
  • FIG. 5D shows a cross section of the heat exchange element piece 115 according to the first embodiment along the YY line in FIG. 5C.
  • the rib 114 is on one surface of the heat transfer plate 113 in a direction orthogonal to the fiber direction 130 of the heat transfer plate 113. Have been placed. As described above, when the heat transfer plate 113 absorbs moisture, it expands in the direction orthogonal to the fiber direction 130 on the plane of the heat transfer plate 113. That is, the heat transfer plate 113 extends in the direction along the rib 114 (the direction in which the rib 114 is extended) by absorbing moisture. Therefore, in the heat exchange element piece 115a according to the comparative example, as shown in FIG.
  • the heat transfer plate 113 at the portion bonded to the rib 114 is in the direction along the rib 114 with respect to the rib 114. Stretch towards. Therefore, in the heat exchange element piece 115a according to the comparative example, the dimensional change of the heat transfer plate 113 due to moisture absorption has a large effect on the rib 114, and adhesive peeling occurs between the heat transfer plate 113 and the rib 114. ..
  • the rib 114 is placed on one surface of the heat transfer plate 113 in the fiber direction 130 of the heat transfer plate 113. It is arranged in the direction along. That is, the heat transfer plate 113 extends in the direction orthogonal to the rib 114 by absorbing moisture. Therefore, in the heat exchange element piece 115 according to the first embodiment, as shown in FIG. 5D, the heat transfer plate 113 extends in a direction orthogonal to the rib 114.
  • FIG. 6 is a diagram for explaining a method of manufacturing the heat exchange element 106.
  • (a) to (c) in the figure show each manufacturing process of the heat exchange element 106. That is, FIG. 6A shows the first step of forming the heat exchange element piece 115.
  • FIG. 6B shows a second step of laminating the heat exchange element pieces 115 to form the laminated body 106a.
  • FIG. 6C shows a third step of crimping the laminated body 106a in the laminating direction to form the heat exchange element 106.
  • the contents of each step will be specifically described.
  • a heat transfer plate 113 in which the fiber direction 130 is directed in a certain direction is prepared.
  • a plurality of ribs 114 are arranged at predetermined positions on one surface of the heat transfer plate 113, and an adhesive member is placed between the ribs 114 and the heat transfer plate 113. It is fixed by heat welding of 141 (not shown).
  • the ribs 114 are arranged and fixed along the fiber direction 130 of the heat transfer plate 113, that is, so that the fiber direction 130 and the longitudinal direction of the rib 114 coincide with each other (see FIG. 4). In this way, a plurality of heat exchange element pieces 115 having ribs 114 extending along the fiber direction 130 of the heat transfer plate 113 are formed.
  • the heat exchange element piece 115 is inserted into the box-shaped laminating jig 150 having an opening at the top.
  • the heat exchange element piece 115 is arranged at a predetermined position so as to press one of the end sides of the heat exchange element piece 115 against one of the wall surfaces of the laminating jig 150.
  • the heat exchange element pieces 115 to be inserted are laminated in different directions so that the ribs 114 are alternately orthogonal to each other in the vertical direction one step at a time to form a laminated body 106a which is a precursor of the heat exchange element 106. ..
  • the upper surface side of the rib 114 is separately coated with the same adhesive member (not shown) as the adhesive member 141 of the rib 114. Therefore, the upper surface of the rib 114 of the heat exchange element piece 115 in the front layer (lower layer in FIG. 6B) and the lower surface (rib 114) of the heat transfer plate 113 of the heat exchange element piece 115 to be newly laminated are arranged. The surface) is temporarily bonded by the adhesive member. Then, these steps are repeated layer by layer in alternating directions to form a laminated body 106a in which all the heat exchange element pieces 115 are laminated.
  • the laminated body 106a is compressed by the press machine 151 from the laminating direction (upward direction) of the heat exchange element piece 115.
  • air passages exhaust air passages 116, air supply air passages 117
  • predetermined intervals intervals corresponding to the height of the ribs 114
  • the rib 114 is also fixed to the heat transfer plate 113 of another heat exchange element piece 115 (the upper heat exchange element piece 115 in FIG. 6C) by the adhesive member of the rib 114.
  • the heat exchange element 106 composed of the heat exchange element piece 115 having the ribs 114 extending along the fiber direction 130 of the heat transfer plate 113 is manufactured.
  • a plurality of heat exchange element pieces 115 of the heat exchange element 106 according to the first embodiment are extended on one surface of the heat transfer plate 113 along the fiber direction 130 of the heat transfer plate 113.
  • the rib 114 is provided.
  • the heat exchange element 106 can reduce the influence of the dimensional change of the heat transfer plate 113 due to moisture absorption on the rib 114, and can suppress the adhesive peeling between the heat transfer plate 113 and the rib 114. .. Therefore, when a plurality of heat exchange element pieces 115 are stacked in the vertical direction to alternately form the exhaust air passage 116 and the air supply air passage 117 layer by layer, the heat exchange element 106 has each air passage. Partial obstruction can be suppressed.
  • the rib 114 is formed by twisting a plurality of fiber members 140. As a result, the tension of the ribs 114 of the heat exchange element 106 increases, so that the dimensional change of the ribs 114 due to moisture absorption is suppressed, and the air passages are blocked due to the adhesive peeling between the heat transfer plate 113 and the ribs 114. It can be suppressed.
  • the rib 114 is configured to have higher hygroscopicity than the heat transfer plate 113. As a result, in the heat exchange element 106, the ribs 114 absorb moisture, so that the dimensional change of the heat transfer plate 113 is suppressed, so that the air passages are blocked due to the adhesive peeling between the heat transfer plate 113 and the ribs 114. Can be suppressed.
  • the heat exchange type ventilator 102 is configured by mounting the above-mentioned heat exchange element 106. As a result, in the heat exchange type ventilator 102, each wind is caused by the adhesive peeling between the heat transfer plate 113 and the rib 114 constituting the heat exchange element piece 115, which is caused by the dimensional change of the heat transfer plate 113 due to moisture absorption. It is possible to suppress the blockage of the road.
  • the heat transfer plate 113 according to the first embodiment corresponds to an example of the "partition member” according to the present disclosure
  • the rib 114 corresponds to an example of the "interval holding member” according to the present disclosure.
  • the heat exchange element piece 115 according to the first embodiment corresponds to an example of the "unit component” according to the present disclosure
  • the heat exchange element 106 corresponds to an example of the "heat exchange element” according to the present disclosure.
  • the exhaust air passage 116 according to the first embodiment corresponds to an example of the "exhaust air passage” according to the present disclosure
  • the air supply air passage 117 corresponds to an example of the "air supply air passage” according to the present disclosure.
  • the laminated body 106a according to the first embodiment corresponds to an example of the "laminated body” according to the present disclosure.
  • the fiber direction 130 according to the first embodiment corresponds to an example of the “fiber direction” according to the present disclosure.
  • the present disclosure relates to a method for manufacturing a heat exchange element, which is used in a cold region or the like and exchanges heat between an exhaust flow that exhausts indoor air to the outside and an air supply that supplies outdoor air to the room. It relates to a heat exchange element to be manufactured.
  • FIG. 16 is an exploded perspective view showing the structure of the conventional heat exchange element 21.
  • the conventional heat exchange element 21 is configured by laminating a large number of heat exchange element single units 22 composed of functional paper 23 having heat transfer properties and ribs 24.
  • a plurality of ribs 24 composed of a paper string 25 and a hot melt resin 26 for adhering the paper string 25 to the functional paper 23 are provided in parallel at predetermined intervals.
  • the ribs 24 create a gap between the pair of functional papers 23 that are vertically adjacent to each other to form an air flow path 27.
  • the heat exchange element 21 is formed so that a plurality of gaps are laminated, and the air flow directions of the respective air flow paths 27 in the adjacent gaps are configured to be orthogonal to each other. As a result, the air flow path 27 is alternately ventilated between the supply air flow and the exhaust flow for each functional paper 23, and heat exchange is performed between the supply air flow and the exhaust flow.
  • Such a conventional heat exchange element is manufactured by alternately stacking a large number of unit constituent members (for example, the above-mentioned heat exchange element single unit 22) so as to be orthogonal to each other, and then compressing them in the stacking direction.
  • the unit constituent member is a partition member (for example, the above-mentioned functional paper 23) on one surface of which a substantially circular fiber member (for example, the above-mentioned paper string 25) is bonded to an adhesive member (for example, the above-mentioned hot melt resin).
  • An interval holding member for example, the rib 24 described above
  • an object of the present disclosure is to provide a method for manufacturing a heat exchange element capable of suppressing a positional deviation during stacking of unit constituent members, and a heat exchange element manufactured by the method.
  • a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided on one surface of the partition member is laminated to form an exhaust air passage.
  • This is a method for manufacturing a heat exchange element in which the air supply air passages are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passages and the air supply air flowing through the air supply air passages exchange heat via a partition member.
  • the method for manufacturing the heat exchange element is the first step of forming a plurality of interval holding members on one surface of the partition member to form a unit constituent member, and laminating the unit constituent members one by one and joining them together.
  • It has a second step of forming a body and a third step of forming an exhaust air passage and an air supply air passage having a predetermined interval in the stacking direction by crimping the laminated body in the stacking direction. Then, in the first step, the first interval holding member and the second interval holding member located on the outermost periphery of the plurality of interval holding members and containing the metal core material are used on one surface of the partition member. A plurality of spacing members forming the exhaust air passage or the air supply air passage are formed. In the second step, when the unit constituent members are laminated one by one, the unit constituent members in a state in which a magnetic force is applied to the metal core material from the outside are laminated and joined to the unit constituent members in the front layer.
  • the exhaust air passage and the air supply air are obtained by stacking a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided on one surface of the partition member. It is a heat exchange element in which the paths are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the supply air passage exchange heat with each other via a partition member.
  • the spacing member constitutes an exhaust air passage or an air supply air passage having a predetermined spacing in the stacking direction, and is located at the end side of the first spacing member and the partition member and includes a metal core material.
  • the first interval holding member is located inside the second interval holding member on one surface of the partition member.
  • the method for manufacturing a heat exchange element according to the present disclosure it is possible to suppress a displacement of the unit constituent members of the heat exchange element during stacking. Further, since the heat exchange element according to the present disclosure suppresses the positional deviation when the unit constituent members are laminated, it is possible to suppress a decrease in heat exchange efficiency due to distortion of the air passage or leakage of airflow from the air passage.
  • a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided on one surface of the partition member is laminated to provide an exhaust air passage and a supply.
  • This is a method for manufacturing a heat exchange element in which air passages are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the air supply air passage exchange heat via a partition member.
  • the method for manufacturing the heat exchange element is the first step of forming a plurality of interval holding members on one surface of the partition member to form a unit constituent member, and laminating the unit constituent members one by one and joining them together.
  • It has a second step of forming a body and a third step of forming an exhaust air passage and an air supply air passage having a predetermined interval in the stacking direction by crimping the laminated body in the stacking direction. Then, in the first step, the first interval holding member and the second interval holding member located on the outermost periphery of the plurality of interval holding members and containing the metal core material are used on one surface of the partition member. A plurality of spacing members forming the exhaust air passage or the air supply air passage are formed. In the second step, when the unit constituent members are laminated one by one, the unit constituent members in a state in which a magnetic force is applied to the metal core material from the outside are laminated and joined to the unit constituent members in the front layer.
  • the unit constituent member in the second step, is pulled in a predetermined direction by applying a magnetic force to the metal core material contained in the second interval holding member from the outside. Therefore, it can be laminated and joined to the unit constituent members of the front layer.
  • the method for manufacturing a heat exchange element according to the present disclosure for example, it is possible to suppress a displacement of the unit constituent members during stacking caused by bending of the unit constituent members. That is, according to the method for manufacturing a heat exchange element according to the present disclosure, it is possible to suppress a displacement of the unit constituent members of the heat exchange element during stacking.
  • the unit constituent members are rectangular, and in the second step, the unit constituent members are aligned inside a jig having a wall surface that matches the lengths of the four sides of the unit constituent members, and the unit constituent members are laminated. You may go.
  • the edge of the unit constituent member (laminated body) already laminated and the end edge of the unit constituent member laminated on the laminated body can be aligned on the wall surface of the jig. .. Therefore, according to the method for manufacturing a heat exchange element according to the present disclosure, it is possible to further suppress the misalignment at the time of laminating the unit constituent members.
  • the unit constituent members are laminated so as to be orthogonal to the unit constituent member of the front layer in a state where a magnetic force is applied to the metal core material of the second interval holding member constituting the unit constituent member of the front layer. It may be joined.
  • the unit constituent members in the front layer can be laminated and joined in a state of being pulled in a predetermined direction (direction orthogonal to the direction in which the stacked unit constituent members are pulled). it can. Therefore, according to the method for manufacturing a heat exchange element according to the present disclosure, it is possible to further suppress the misalignment at the time of laminating the unit constituent members.
  • an exhaust air passage and an air supply air passage are formed by stacking a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided on one surface of the partition member. It is a heat exchange element that is alternately configured one layer at a time and exchanges heat between the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the supply air passage through a partition member.
  • the spacing member constitutes an exhaust air passage or an air supply air passage having a predetermined spacing in the stacking direction, and is located at the end side of the first spacing member and the partition member and includes a metal core material.
  • the first interval holding member is located inside the second interval holding member on one surface of the partition member.
  • FIG. 8 is a schematic view showing an installation state of the heat exchange type ventilation device 202 including the heat exchange element 206 according to the second embodiment.
  • FIG. 9 is a schematic view showing the structure of the heat exchange type ventilator 202.
  • the heat exchange type ventilation device 202 is installed indoors of the house 201.
  • the heat exchange type ventilator 202 is a device that ventilates indoor air and outdoor air while exchanging heat.
  • the exhaust flow 203 is discharged to the outside via the heat exchange type ventilator 202 as shown by the black arrow.
  • Exhaust flow 203 is a flow of air discharged from indoors to outdoors.
  • the airflow 204 is taken into the room via the heat exchange type ventilation device 202 as shown by the white arrow.
  • Air supply 204 is a flow of air taken in from the outside to the inside. For example, in winter in Japan, the exhaust flow 203 is 20 ° C to 25 ° C, while the air flow 204 may reach below freezing.
  • the heat exchange type ventilation device 202 ventilates and transfers the heat of the exhaust flow 203 to the supply airflow 204 at the time of this ventilation to suppress the release of unnecessary heat.
  • the heat exchange type ventilation device 202 includes a main body case 205, a heat exchange element 206, an exhaust fan 207, an inside air port 208, an exhaust port 209, an air supply fan 210, an outside air port 211, and an air supply port 212.
  • the main body case 205 is an outer frame of the heat exchange type ventilator 202.
  • An inside air port 208, an exhaust port 209, an outside air port 211, and an air supply port 212 are formed on the outer periphery of the main body case 205.
  • the inside air port 208 is a suction port for sucking the exhaust flow 203 into the heat exchange type ventilation device 202.
  • the exhaust port 209 is a discharge port that discharges the exhaust flow 203 from the heat exchange type ventilation device 202 to the outside.
  • the outside air port 211 is a suction port for sucking the air supply air flow 204 into the heat exchange type ventilation device 202.
  • the air supply port 212 is a discharge port that discharges the air supply airflow 204 indoors from the heat exchange type ventilation device 202.
  • the heat exchange element 206 is a member for exchanging heat between the exhaust flow 203 and the air flow 204.
  • the exhaust fan 207 is a blower for sucking the exhaust flow 203 from the inside air port 208 and discharging it from the exhaust port 209.
  • the air supply fan 210 is a blower for sucking the air flow 204 from the outside air port 211 and discharging it from the air supply port 212.
  • the exhaust flow 203 sucked from the inside air port 208 by driving the exhaust fan 207 is discharged to the outside from the exhaust port 209 via the heat exchange element 206 and the exhaust fan 207. Further, the air flow 204 sucked from the outside air port 211 by driving the air supply fan 210 is supplied indoors from the air supply port 212 via the heat exchange element 206 and the air supply fan 210.
  • FIG. 10 is an exploded perspective view showing the structure of the heat exchange element 206 used in the heat exchange type ventilator 202.
  • FIG. 11 is a partial cross-sectional view showing the structure of the rib 214 constituting the heat exchange element 206.
  • the heat exchange element 206 is composed of a plurality of heat exchange element pieces 215.
  • a plurality of ribs 214 (first rib 214a, second rib 214b) are adhered to each heat exchange element piece 215 on one surface of a substantially square heat transfer plate 213.
  • the heat exchange element 206 is formed by stacking a plurality of heat exchange element pieces 215 in different directions one by one so that the ribs 214 are orthogonal to each other.
  • an exhaust air passage 216 through which the exhaust flow 203 ventilates and an air supply air passage 217 through which the air supply airflow 204 ventilates are formed, and the exhaust flow 203 and the air supply airflow 204 flow alternately at right angles to each other. It has become possible to exchange heat between them.
  • the heat exchange element piece 215 is one unit constituting the heat exchange element 206. As described above, the heat exchange element piece 215 is formed by adhering a plurality of ribs 214 on one surface of a substantially square heat transfer plate 213. The rib 214 on the heat transfer plate 213 is formed so that its longitudinal direction is directed from one end side of the heat transfer plate 213 toward the end side facing the end side. Each of the ribs 214 is formed in a straight line. Each of the ribs 214 is arranged in parallel on the surface of the heat transfer plate 213 at predetermined intervals. Specifically, as shown in FIG.
  • the rib 214 is placed on one surface of the heat transfer plate 213 constituting one of the heat exchange element pieces 215. Is formed by adhering so that the longitudinal direction of the heat transfer plate 213 is directed from the end side 213a to the opposite end side 213c. Further, on one surface of the heat transfer plate 213 constituting the other heat exchange element piece 215, the longitudinal direction of the rib 214 is from the end side 213b (the end side perpendicular to the end side 213a) of the heat transfer plate 213. It is formed by adhering so as to face the opposite end sides 213d.
  • the second rib 214b which will be described later, is formed along the end side 213b and the end side 213d at the end side (outer edge) of the heat transfer plate 213, which is the position of the outermost periphery of the rib 214.
  • the heat transfer plate 213 is a thin sheet having a heat transfer property for exchanging heat when the exhaust flow 203 and the supply air flow 204 flow across the heat transfer plate 213, and has a property of not allowing gas to permeate. Can be used.
  • the heat transfer plate 213 is formed of heat transfer paper based on cellulose fibers, has heat transfer property, moisture permeability, and hygroscopic property, and can obtain a heat exchange element 206 that exchanges heat and moisture.
  • the material of the heat transfer plate 213 is not limited to this.
  • a heat exchange element 206 that exchanges water in addition to heat is obtained by using a moisture-permeable resin film based on polyurethane or polyethylene terephthalate, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber. be able to.
  • the plurality of ribs 214 are provided between a pair of opposite end sides of the heat transfer plate 213, and are formed so as to go from one end side to the other end side.
  • the rib 214 is a member for forming an exhaust air passage 216 or an air supply air passage 217, that is, a gap for passing an exhaust flow 203 or an air flow 204 between the heat transfer plates 213 when the heat transfer plates 213 are stacked. .. More specifically, as shown in FIG. 10, the plurality of ribs 214 are composed of two second ribs 214b arranged along a pair of opposite end edges (outer edges) of the heat transfer plate 213 and second ribs at both ends.
  • the second rib 214b is a rib formed along the end side 213b or the end side 213d at the outer edge of the heat transfer plate 213 which is the outermost position of the rib 214 among the plurality of ribs 214.
  • the first rib 214a is a rib formed in a region sandwiched between the second ribs 214b at both ends among the plurality of ribs 214.
  • each of the plurality of ribs 214 (first rib 214a, second rib 214b) has a substantially circular cross section.
  • the rib 214 is composed of a plurality of fiber members 240, and is fixed to each other with the heat transfer plate 213 via the adhesive member 241. Further, the rib 214 has an adhesive member 241 on the surface layer, and is configured by impregnating each minute gap of the fiber member 240 with the adhesive member 241.
  • the first rib 214a is formed by twisting a plurality of fiber members 240 extending in the same direction as the rib 214.
  • the second rib 214b is configured by twisting a plurality of fiber members 240 extending in the same direction as the rib 214 like the first rib 214a, but includes a metal core material 242 in the center of the plurality of fiber members 240.
  • the plurality of ribs 214 constitute an exhaust air passage 216 or an air supply air passage 217 having a predetermined interval in the stacking direction, and are located at the ends of the first rib 214a and the heat transfer plate 213. It has a second rib 214b containing a metal core material 242.
  • the first rib 214a is located inside the second rib 214b on one surface of the heat transfer plate 213.
  • Each of the fiber members 240 has a substantially circular cross section and is a fiber member extending in the same direction as the rib 214.
  • the material of the fiber member 240 it is sufficient if it has hygroscopicity and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber, cotton, silk, or linen can be used as the material of the fiber member 240.
  • magnetism is sufficient, and for example, metals such as iron, nickel, cobalt and neodymium, or alloys thereof and metal compounds such as ferrite can be used.
  • FIG. 12 is a diagram for explaining a method of manufacturing the heat exchange element 206.
  • (a) to (c) in the figure show each manufacturing process of the heat exchange element 206. That is, FIG. 12A shows the first step of forming the heat exchange element piece 215.
  • FIG. 12B shows a second step of laminating the heat exchange element pieces 215 to form the laminated body 206a.
  • FIG. 12C shows a third step of crimping the laminated body 206a in the laminating direction to form the heat exchange element 206.
  • FIG. 13 is an exploded perspective view showing a method of manufacturing the heat exchange element 206.
  • the contents of each step will be specifically described.
  • a plurality of ribs 214 (first ribs 214a and second ribs 214b) are arranged at predetermined positions on one surface of the heat transfer plate 213. To do. Then, the rib 214 and the heat transfer plate 213 are fixed by heat welding of the adhesive member 241 (not shown in FIG. 12A). In this way, a plurality of heat exchange element pieces 215 are formed.
  • a first rib 214a formed by twisting a plurality of fiber members 240 and a second rib 214b containing a metal core material 242 are used as the plurality of ribs 214.
  • the first step is a step of forming a plurality of ribs 214 on one surface of the heat transfer plate 213 to form the heat exchange element piece 215.
  • the first rib 214a and the second rib 214b located on the outermost periphery of the plurality of ribs 214 and containing the metal core material 242 are used on one surface of the heat transfer plate 213. It constitutes an exhaust air passage 216 or an air supply air passage 217.
  • a plurality of heat exchange element pieces 215 are laminated one by one in the vertical direction by changing the orientation so that the ribs 214 are orthogonal to each other.
  • a plurality of laminated heat exchange element pieces 215 are referred to as heat exchange element pieces 215c, 215b, and 215a from the bottom for convenience of explanation, but they have the same configuration. is there.
  • the heat exchange element piece 215a in the second step when the heat exchange element pieces 215 are alternately laminated one layer at a time to form the laminated body 206a, the following is performed. That is, the heat exchange element piece 215a in a state where a magnetic force is applied to the metal core material 242 from the outside (electromagnet 270) is laminated and bonded to the heat exchange element piece 215b in the front layer. Then, these are laminated one by one in alternating directions to form a laminated body 206a.
  • FIG. 12B shows a state in which the heat exchange element piece 215a is further laminated on the laminated body 206a in which the heat exchange element piece 215c and the heat exchange element piece 215b are laminated.
  • the laminated body 206a will be described as a laminated body in which all of them are laminated or a laminated body in which a part of them is laminated.
  • a box-shaped laminating jig 271 having an opening at the top is used.
  • the laminating jig 271 is configured to have wall surfaces (wall surfaces 271a to 271d) that match the lengths of the four sides of the rectangular heat exchange element piece 215.
  • the size of the wall surface (the length of the sides of the laminating jig 271) according to the lengths of the four sides of the heat exchange element piece 215 is determined as follows, for example.
  • the heat exchange element pieces 215 are laminated so as to form a box containing the heat exchange element pieces 215 (laminate 206a) with a gap that does not shift the position when the heat exchange element pieces 215 are laminated and the laminate 206a can be taken out.
  • the size of the wall surface of the jig 271 is determined.
  • the laminating jig 271 is a material capable of causing the magnetic force of the electromagnet 270 to act on the heat exchange element piece 215 (metal core material 242 of the second rib 214b) even if the laminating jig 271 is interposed. Sufficient, for example, a material such as plastic can be used.
  • each of the heat exchange element pieces 215 is inserted into the inside through the opening at the upper part of the laminating jig 271 while receiving the magnetic force of the electromagnet 270.
  • each of the heat exchange element pieces 215 is determined so as to press the end side (for example, end side 213c) of the heat exchange element piece 215 against the wall surface (for example, wall surface 271c) of the laminating jig 271. Is placed at the position of.
  • each of the heat exchange element pieces 215 has an adhesive member (the same member as the adhesive member 241) coated on the upper surface side (the side opposite to the heat transfer plate 213) of the rib 214. It has been inserted.
  • the electromagnet 270 is configured to have two sets of a pair of electromagnets. Specifically, one set is a pair of electromagnets 270a (see FIG. 13) that can move in the stacking direction (vertical direction) along the wall surface 271b and the wall surface 271d of the stacking jig 271. The other set is another pair of electromagnets 270b (see FIG. 15) that can move in the stacking direction (vertical direction) along the wall surface 271a and the wall surface 271c of the stacking jig 271. Then, as shown in FIG.
  • the heat exchange element piece 215 is inserted into the laminating jig 271 as follows. That is, a magnetic force is applied from the electromagnet 270 (a pair of electromagnets 270a) to the metal core material 242 included in the second rib 214b with respect to the heat exchange element piece 215b of the front layer laminated and arranged inside the laminating jig 271.
  • the heat exchange element pieces 215a in this state are laminated and joined.
  • the heat exchange element piece 215a to be laminated is pulled in a predetermined direction (direction along the end side 213a of the heat transfer plate 213) by the action of the magnetic force of the electromagnet 270, and the heat transfer plate 213 is pulled in the front layer. It is laminated and bonded to the heat exchange element piece 215b. As a result, the rib 214 of the heat exchange element piece 215b in the front layer is temporarily bonded to the heat transfer plate 213 of the heat exchange element piece 215a via the adhesive member 241. Then, these steps are repeated layer by layer in alternating directions to form a laminated body 206a in which all the heat exchange element pieces 215 are laminated.
  • the second step is a step of laminating the heat exchange element pieces 215 layer by layer to form a laminated body 206a bonded to each other.
  • the heat exchange element piece 215 is aligned inside the laminating jig 271 having a wall surface that matches the lengths of the four sides of the rectangular heat exchange element piece 215, and the heat exchange element piece 215 is laminated. I do.
  • the heat exchange element pieces 215 are laminated one layer at a time inside the laminating jig 271, the metal core material contained in the second rib 214b from the outside with respect to the heat exchange element piece 215b in the front layer.
  • the heat exchange element pieces 215a in a state where a magnetic force is applied to the 242 are laminated and joined.
  • the laminated body 206a formed in the second step is crimped by the press machine 272 from the laminating direction (upward direction) of the heat exchange element piece 215.
  • the upper and lower heat exchange element pieces 215 are fixed to each other to form the heat exchange element 206.
  • the heat exchange element 206 is formed with air passages (exhaust air passage 216, air supply air passage 217) having a predetermined interval (interval corresponding to the height of the rib 214) in the stacking direction of the heat exchange element pieces 215. It is formed.
  • FIG. 14 is a diagram for explaining a problem of a conventional method for manufacturing a heat exchange element 28.
  • (a) to (c) of the figure show each manufacturing process of the conventional manufacturing method of a heat exchange element 28, and in particular, (a) and 14 (c) of FIG. Corresponds to the second step and the third step (see (b) of FIG. 12 and (c) of FIG. 12) of the method for manufacturing the heat exchange element 206 according to the second embodiment, respectively.
  • FIG. 14A shows a state in the process of laminating the heat exchange element pieces 215 to form the laminated body 28a.
  • FIG. 14B shows a state in which the heat exchange element piece 215a is laminated and temporarily bonded to the heat exchange element piece 215b in the front layer.
  • FIG. 14C shows a state in which the laminated body 28a is crimped in the laminating direction to form the heat exchange element 28.
  • the heat transfer plate 213 constituting the heat exchange element piece 215a is easily bent because a thin sheet is used, and as shown in FIG. 14A, it is orthogonal to the extending direction of the rib 214. It is particularly liable to bend in the direction (the left-right direction in the heat exchange element piece 215a of FIG. 14A). That is, in the direction orthogonal to the extending direction of the rib 214, the length of the heat exchange element piece 215a tends to decrease due to the bending of the heat transfer plate 213. Therefore, when the heat exchange element piece 215a is inserted into the laminating jig 271 and laminated, the following problems may occur.
  • a misalignment occurs between the rib 214 of the heat exchange element piece 215a and the rib 214 of the heat exchange element piece 215c. Further, due to the bending of the heat exchange element piece 215a by the heat transfer plate 213, a gap 273 may be formed between the heat transfer plate 213 of the heat exchange element piece 215a and the rib 214 of the heat exchange element piece 215b in the front layer.
  • the region P is a region in which the heat transfer plate 213 and the rib 214 are not provided.
  • the heat exchange element piece 215a in a state where the heat exchange element piece 215a is pulled in a predetermined direction (direction along the end side 213a of the heat transfer plate 213) by the action of the magnetic force of the electromagnet 270, the heat exchange element piece 215b in the front layer is pulled. It is laminated and joined. Therefore, it is possible to suppress the misalignment of the heat exchange element pieces 215a caused by the bending of the heat exchange element pieces 215a during stacking.
  • the heat exchange element piece 215a is pulled in a predetermined direction by applying a magnetic force to the metal core material 242 included in the second rib 214b from the outside (electromagnet 270), and the front layer.
  • the heat exchange element piece 215b of the above was laminated and bonded. As a result, it is possible to suppress the misalignment of the heat exchange element pieces 215a during stacking caused by the bending of the heat exchange element piece 215a. That is, according to the method for manufacturing the heat exchange element 206 according to the second embodiment, the misalignment of the heat exchange element pieces 215a at the time of stacking can be suppressed.
  • the heat exchange element piece 215 is aligned inside the laminating jig 271 having the wall surfaces (wall surfaces 271a to 71d) matching the lengths of the four sides of the heat exchange element piece 215, and heat is generated.
  • the interchangeable element pieces 215 are laminated.
  • the end side (for example, the end side 213c) of the laminated body 206a in the process of laminating the heat exchange element piece 215 and the end side of the heat exchange element piece 215 to be laminated on the laminated body 206a are formed on the wall surface of the laminating jig 271. It becomes possible to align with 271c. That is, according to the method for manufacturing the heat exchange element 206 according to the second embodiment, the misalignment of the heat exchange element pieces 215 at the time of stacking can be further suppressed.
  • a heat exchange element piece 215 is formed by using a second rib 214b containing a metal core material 242 as the outermost rib 214 of the heat transfer plate 213, and a plurality of such heat exchange element pieces 215 are laminated to form a heat exchange element.
  • 206 is configured.
  • the heat exchange element 206 manufactured by the method for manufacturing the heat exchange element 206 according to the second embodiment has increased rigidity, and when an external force such as accidentally pushing the outer surface of the heat exchange element 206 by hand is generated during maintenance or the like. However, the deformation of the heat exchange element 206 can be suppressed.
  • FIG. 15 is an exploded perspective view showing a method of manufacturing a heat exchange element according to a modified example.
  • a magnetic force is applied to the heat exchange element piece 215a by a pair of electromagnets 270a as in the second embodiment.
  • a magnetic force is also applied to the heat exchange element piece 215b in the front layer by another pair of electromagnets 270b. That is, in a state where the heat exchange element piece 215b is pulled in a predetermined direction (the direction orthogonal to the direction in which the heat exchange element piece 215a is pulled), the heat exchange element pieces 215a are laminated and joined.
  • the heat exchange element pieces 215a can be laminated and joined in a state where deformation due to surface tension of the heat exchange element piece 215b is suppressed. Therefore, according to the method for manufacturing the heat exchange element according to the modified example, the misalignment of the heat exchange element pieces 215a at the time of stacking can be further suppressed.
  • the heat transfer plate 213 according to the second embodiment and the modified example is an example of the "partition member” according to the present disclosure
  • the rib 214 is an example of the "interval holding member” according to the present disclosure.
  • the first rib 214a according to the second embodiment and the modified example is an example of the "first interval holding member” according to the present disclosure
  • the second rib 214b is an example of the "second interval holding member” according to the present disclosure. Corresponds to each.
  • the heat exchange element piece 215 according to the second embodiment and the modified example is an example of the "unit constituent member” according to the present disclosure
  • the heat exchange element piece 215b is an example of the "unit constituent member of the front layer” according to the present disclosure.
  • the heat exchange element 206 according to the second embodiment and the heat exchange element according to the modified example correspond to an example of the "heat exchange element” according to the present disclosure.
  • the exhaust air passage 216 according to the second embodiment and the modified example corresponds to an example of the "exhaust air passage” according to the present disclosure
  • the air supply air passage 217 corresponds to an example of the "air supply air passage” according to the present disclosure.
  • the laminated body 206a according to the second embodiment and the modified example corresponds to an example of the "laminated body” according to the present disclosure
  • the metal core material 242 corresponds to an example of the "metal core material” according to the present disclosure
  • the laminated jig 271 according to the second embodiment and the modified example corresponds to an example of the "jig" according to the present disclosure.
  • the method for manufacturing the heat exchange element according to the second embodiment and the modified example is useful because the misalignment of the rib 214 at the time of laminating the heat exchange element piece 215 can be suppressed.
  • the heat exchange element 206 manufactured by the heat exchange element manufacturing method according to the second embodiment and the heat exchange element manufactured by the heat exchange element manufacturing method according to the modified example have ribs 214 in the manufacturing process. It is possible to suppress distortion of the air passage caused by misalignment or leakage of airflow from the air passage. Therefore, the heat exchange element 206 manufactured by the heat exchange element manufacturing method according to the second embodiment and the heat exchange element manufactured by the heat exchange element manufacturing method according to the modified example can maintain high heat exchange efficiency. It is a thing. Therefore, it is useful as a heat exchange element used in a heat exchange type ventilator or the like.
  • the present disclosure is a heat exchange element used in a cold region or the like, which exchanges heat between an exhaust flow that exhausts indoor air to the outside and a supply air flow that supplies outdoor air to the room, and heat using the same. It relates to a replaceable ventilation system.
  • FIG. 23 is an exploded perspective view showing the structure of the conventional heat exchange element 31.
  • the conventional heat exchange element 31 is configured by laminating a large number of heat exchange element single units 32 composed of functional paper 33 having heat transfer properties and ribs 34.
  • a plurality of ribs 34 composed of a paper string 35 and a hot melt resin 36 for adhering the paper string 35 to the functional paper 33 are provided in parallel at predetermined intervals.
  • the ribs 34 create a gap between the pair of functional papers 33 that are laminated adjacent to each other, forming an air flow path 37.
  • the heat exchange element 31 is formed so that a plurality of gaps are laminated, and the air flow directions of the respective air flow paths 37 in the adjacent gaps are configured to be orthogonal to each other. As a result, the air supply airflow and the exhaust airflow alternately ventilate the air flow path 37 for each functional paper 33, and heat exchange is performed between the air supply airflow and the exhaust flow.
  • Such a conventional heat exchange element is configured to maintain a distance between partition members (for example, the above-mentioned functional paper 33) by means of an interval holding member (for example, the above-mentioned rib 34). Further, the interval holding member is formed by wrapping a substantially circular fiber member (for example, the above-mentioned paper string 35) with an adhesive member (for example, the above-mentioned hot melt resin 36).
  • an object of the present disclosure is to provide a heat exchange element capable of improving heat exchange efficiency and a heat exchange type ventilation device using the same.
  • the heat exchange element according to the present disclosure is an exhaust air passage in which a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided in parallel on one surface of the partition member is laminated. And the air supply air passage are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the air supply air passage are heat exchange elements that exchange heat via a partition member.
  • the space-holding member is formed by twisting a plurality of fiber members in a spiral shape while rotating a plurality of fiber members in the same predetermined direction about the direction in which the exhaust flow or the air flow flows, and the space-holding members adjacent to each other are formed. They are arranged so that the predetermined directions of rotation are the same when looking from the upstream side to the downstream side of the exhaust flow or the supply air flow.
  • heat exchange type ventilation device is configured to be equipped with the above-mentioned heat exchange element.
  • the heat exchange efficiency can be improved.
  • a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided in parallel on one surface of the partition member is laminated to provide an exhaust air passage and a supply. It is a heat exchange element in which the air passages are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the supply air passage exchange heat via a partition member.
  • the space-holding member is formed by twisting a plurality of fiber members in a spiral shape while rotating them in the same predetermined direction about the direction in which the exhaust flow or the air supply flow flows.
  • the spacing members adjacent to each other are arranged so that they are rotated in the same predetermined direction when viewed from the upstream side to the downstream side of the exhaust flow or the supply air flow.
  • the exhaust flow (or air flow) flowing through the exhaust air passage (or air supply air passage) of the heat exchange element according to the present disclosure is a fiber member in the exhaust air passage (or air supply air passage).
  • the exhaust flow (or supply airflow) becomes a swirling flow. Therefore, in the heat exchange element according to the present disclosure, the air in the exhaust flow (or in the supply air flow) becomes mixed, and the heat transfer coefficient in the heat exchange element is improved. Therefore, the heat exchange element according to the present disclosure can improve the heat exchange efficiency as compared with the conventional heat exchange element.
  • a plurality of fiber members may be exposed on the side surface of the interval holding member.
  • the heat exchange element according to the present disclosure flows along the uneven shape of the plurality of fiber members themselves, so that the exhaust flow (or air supply) swirls. It becomes easy to generate such a swirling flow. Therefore, the air in the exhaust flow (or in the air supply airflow) becomes further mixed, and the heat exchange element according to the present disclosure can improve the heat transfer coefficient in the heat exchange element.
  • an inclination of the fiber member is formed on the side surface of the spacing member, and an exhaust flow or an air flow is supplied on one of the pair of facing side surfaces of the spacing member adjacent to each other. From the upstream side to the downstream side of the fiber member, the fiber member becomes the first inclination from the upper side to the lower side of the space holding member, and on the other side of the pair of opposite side surfaces of the space holding members adjacent to each other, the upstream side of the exhaust stream or the air flow.
  • the fiber member may have a second inclination from the lower side to the upper side of the spacing member as it goes from the side to the downstream side.
  • the heat exchange element according to the present disclosure is above the space holding member with respect to the exhaust flow (or air supply) due to the first inclination of the fiber member when the exhaust flow (or air supply) flows. Creates a downward flow from. Further, in the heat exchange element according to the present disclosure, when the exhaust flow (or air supply) flows, the flow from the lower side to the upper side of the interval holding member with respect to the exhaust flow (or air supply) due to the second inclination of the fiber member. Causes. Therefore, the heat exchange element according to the present disclosure can more reliably generate a swirling flow in which the exhaust flow (or air supply) swirls, and further increases the air in the exhaust flow (or air supply). Can be mixed. That is, since the heat exchange element according to the present disclosure can improve the heat transfer coefficient in the heat exchange element, the heat exchange efficiency can be improved as compared with the conventional heat exchange element.
  • the heat exchange type ventilation device is configured to be equipped with the above-mentioned heat exchange element. Therefore, the heat exchange type ventilator according to the present disclosure can improve the heat exchange efficiency.
  • FIG. 17 is a schematic view showing an installation state of the heat exchange type ventilator 302 including the heat exchange element 306 according to the third embodiment of the present disclosure.
  • FIG. 18 is a schematic view showing the structure of the heat exchange type ventilator 302.
  • the heat exchange type ventilation device 302 is installed indoors of the house 301.
  • the heat exchange type ventilator 302 is a device that ventilates while exchanging heat between indoor air and outdoor air.
  • the exhaust flow 303 is discharged to the outside via the heat exchange type ventilator 302 as shown by the black arrow.
  • the exhaust flow 303 is a flow of air discharged from indoors to outdoors.
  • the air supply 304 is taken into the room via the heat exchange type ventilation device 302 as shown by the white arrow.
  • the air supply 304 is a flow of air taken in from the outside to the inside. For example, in winter in Japan, the exhaust flow 303 is 20 ° C to 25 ° C, while the air flow 304 may reach below freezing.
  • the heat exchange type ventilator 302 ventilates and transfers the heat of the exhaust flow 303 to the supply airflow 304 at the time of this ventilation to suppress the release of unnecessary heat.
  • the heat exchange type ventilation device 302 includes a main body case 305, a heat exchange element 306, an exhaust fan 307, an inside air port 308, an exhaust port 309, an air supply fan 310, an outside air port 311 and an air supply port 312. ing.
  • the main body case 305 is an outer frame of the heat exchange type ventilator 302.
  • An inside air port 308, an exhaust port 309, an outside air port 311 and an air supply port 312 are formed on the outer periphery of the main body case 305.
  • the inside air port 308 is a suction port for sucking the exhaust flow 303 into the heat exchange type ventilation device 302.
  • the exhaust port 309 is a discharge port that discharges the exhaust flow 303 from the heat exchange type ventilation device 302 to the outside.
  • the outside air port 311 is a suction port for sucking the air supply air flow 304 into the heat exchange type ventilation device 302.
  • the air supply port 312 is a discharge port that discharges the air flow 304 from the heat exchange type ventilat
  • the heat exchange element 306 is a member for exchanging heat between the exhaust flow 303 and the supply air flow 304.
  • the exhaust fan 307 is a blower for sucking the exhaust flow 303 from the inside air port 308 and discharging it from the exhaust port 309.
  • the air supply fan 310 is a blower for sucking the air flow 304 from the outside air port 311 and discharging it from the air supply port 312.
  • the exhaust flow 303 sucked from the inside air port 308 by driving the exhaust fan 307 is discharged to the outside from the exhaust port 309 via the heat exchange element 306 and the exhaust fan 307.
  • the air supply 304 sucked from the outside air port 311 by driving the air supply fan 310 is supplied indoors from the air supply port 312 via the heat exchange element 306 and the air supply fan 310.
  • FIG. 19 is a perspective view showing the structure of the heat exchange element 306.
  • FIG. 20 is a diagram showing a structure of ribs 314 constituting the heat exchange element 306.
  • FIG. 20A is a perspective view of the rib 314.
  • FIG. 20B is a side view of the rib 314 as viewed from the A side.
  • FIG. 20 (c) is a side view of the rib 314 as viewed from the B side.
  • the heat exchange element 306 is composed of a plurality of heat exchange element pieces 315.
  • a plurality of ribs 314 are adhered to each heat exchange element piece 315 on one surface of a substantially square heat transfer plate 313.
  • the heat exchange element 306 is formed by stacking a plurality of heat exchange element pieces 315 in different directions one by one so that the ribs 314 are orthogonal to each other. With such a configuration, an exhaust air passage 316 through which the exhaust flow 303 ventilates and an air supply air passage 317 through which the air supply airflow 304 ventilates are formed, and the exhaust flow 303 and the air supply airflow 304 flow alternately at right angles to each other. It has become possible to exchange heat between them.
  • the heat exchange element piece 315 is one unit constituting the heat exchange element 306. As described above, the heat exchange element piece 315 is formed by adhering a plurality of ribs 314 on one surface of a substantially square heat transfer plate 313. The rib 314 on the heat transfer plate 313 is formed so that its longitudinal direction is directed from one end side of the heat transfer plate 313 to the other end side facing the rib 314. Each of the plurality of ribs 314 is formed in a straight line. Each of the ribs 314 is arranged in parallel on the surface of the heat transfer plate 313 at predetermined intervals. Specifically, as shown in FIG.
  • the rib 314 is placed on one surface of the heat transfer plate 313 that constitutes one of the heat exchange element pieces 315. Is formed by adhering so that the longitudinal direction of the heat transfer plate 313 is directed from the end side 313a of the heat transfer plate 313 toward the opposite end side 313c. Further, on one surface of the heat transfer plate 313 constituting the other heat exchange element piece 315, the longitudinal direction of the rib 314 is from the end side 313b (the end side perpendicular to the end side 313a) of the heat transfer plate 313. It is formed by adhering so as to face the opposite end sides 313d.
  • the heat transfer plate 313 is a plate-shaped member for exchanging heat when the exhaust flow 303 and the supply air flow 304 flow across the heat transfer plate 313.
  • the heat transfer plate 313 is formed of heat transfer paper based on cellulose fibers, and has heat transfer property, moisture permeability, and hygroscopic property.
  • the material of the paper is not limited to this.
  • the heat transfer plate 313 is a thin sheet having heat transfer properties, and one having a property of not allowing gas to permeate can be used.
  • the plurality of ribs 314 are provided between a pair of opposite end sides of the heat transfer plate 313, and are formed so as to go from one end side to the other end side.
  • the rib 314 has a substantially cylindrical shape for forming an exhaust air passage 316 or an air supply air passage 317, that is, a gap for passing an exhaust flow 303 or an air flow 304 between the heat transfer plates 313 when the heat transfer plates 313 are stacked. It is a member of.
  • Each of the plurality of ribs 314 has a substantially circular cross section as shown in FIG. 20 (a).
  • the rib 314 is composed of a plurality of fiber members 340. Further, the rib 314 is configured by impregnating each minute gap of the fiber member 340 with an adhesive, but the fiber member 340 is exposed on the outermost surface of the rib 314. That is, a plurality of fiber members 340 are exposed on the side surface of the rib 314.
  • known adhesives and bonding methods can be used depending on the material of the rib 314, such as application of an adhesive, sticking of a sealing material, and heat welding. There is no difference.
  • each of the fiber members 340 is a fiber member having a substantially circular cross section and extending in the same direction as the rib 314.
  • the material of the fiber member 340 it is sufficient if it has hygroscopicity and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber, cotton, silk, or linen can be used as the material of the fiber member 340.
  • the rib 314 will be described in more detail.
  • the arrow on the axis X indicates the direction in which the exhaust flow 303 or the supply air flow 304 flows. That is, the starting point side of the arrow of the axis X is the upstream side of the exhaust flow 303 or the air supply 304, and the tip end side of the arrow of the axis X is the downstream side of the exhaust flow 303 or the air flow 304.
  • the rib 314 is an aggregate of a plurality of fiber members 340 when viewed from the upstream side to the downstream side of the exhaust flow 303 or the air flow 304 (7 as an example in FIG. 20). Is twisted in a spiral shape while rotating in the same rib twisting direction R.
  • the rib twisting direction R is in the clockwise direction, but it may be counterclockwise. That is, the rib 314 may be formed by spirally twisting the ribs 314 while rotating the plurality of fiber members 340 in the same predetermined direction with the direction in which the exhaust flow 303 or the air flow 304 flows as the axis X.
  • the rib twists that rotate the ribs 314 adjacent to each other on one surface of one heat transfer plate 313 while looking from the upstream side to the downstream side of the exhaust flow 303 or the air flow 304. They are arranged so that the directions R are the same.
  • the side surface of the rib 314 is in a state where the fiber member 340 is inclined. That is, it can be said that the inclined 390 of the fiber member 340 is formed on the side surface of the rib 314.
  • the fiber member 340 goes from the upstream side to the downstream side of the exhaust flow 303 or the air flow 304.
  • the first inclination 390a inclination 390
  • the fiber member 340 becomes the rib 314 as the exhaust flow 303 or the air flow 304 goes from the upstream side to the downstream side.
  • the second inclination is 390b (inclination 390) from the lower side to the upper side.
  • the fiber member 340 has a first inclination 390a from the upper side to the lower side of the rib 314 as the exhaust flow 303 or the air flow 304 is directed from the upstream side to the downstream side. (Inclination 390). Further, on the other side of the pair of opposite side surfaces of the ribs 314 adjacent to each other, the fiber member 340 has a second inclination 390b from the lower side to the upper side of the rib 314 as the exhaust flow 303 or the air flow 304 is directed from the upstream side to the downstream side. (Inclination 390).
  • the inclination angle ⁇ of the inclination 390 of the fiber member 340 is 20 ° to 70 °, more preferably. It is 45 °.
  • FIG. 21 is a perspective view of the heat exchange element piece 315 constituting the heat exchange element 306.
  • FIG. 22 is a partial cross-sectional view of the heat exchange element pieces 315 in a laminated state.
  • FIG. 21 shows a state in which the exhaust flow 303 flows from the upstream side to the downstream side
  • FIG. 22 shows the inflow port on the upstream side of the exhaust flow 303.
  • the rib 314 located on the left side is referred to as the rib 314a
  • the rib 314 located on the right side is referred to as the rib 314b.
  • the ribs 314a and 314b adjacent to each other are arranged side by side so that the rib twisting directions R to be rotated are the same when viewed from the upstream side to the downstream side of the exhaust flow 303.
  • the rib twisting directions R of the other ribs 314 arranged on the surface of the heat transfer plate 313 on which the ribs 314a and 314b are arranged are also the same as the ribs 314a and 314b. It is in the same direction.
  • the right side surface of the rib 314a and the left side surface of the rib 314b are in a state of facing each other, and the right side surface of the rib 314a and the left side of the rib 314b
  • the side surface is a pair of side surfaces.
  • the fiber member 340 constituting the rib 314a goes from the upper side to the lower side of the rib 314a from the upstream side to the downstream side of the exhaust flow 303.
  • the first inclination is 390a (see (b) in FIG. 20).
  • the fiber member 340 constituting the rib 314b is directed from the lower side to the upper side of the rib 314b as the exhaust flow 303 is directed from the upstream side to the downstream side. (See (c) in FIG. 20).
  • the heat exchange efficiency of the heat exchange element 306 according to the third embodiment is improved as compared with the conventional heat exchange element.
  • the heat exchange element 306 spirally rotates the rib 314 in the same rib twisting direction R with the direction in which the exhaust flow 303 (or the air supply 304) flows as the axis X. It was formed by twisting. Then, the ribs 314 adjacent to each other (ribs 314a and 314b) are arranged so that the rib twisting directions R for rotation are the same when viewed from the upstream side to the downstream side of the exhaust flow 303 (or the air flow 304). did.
  • the exhaust flow 303 (or the supply airflow 304) flowing through the exhaust air passage 316 (or the supply air passage 317) of the heat exchange element 306 becomes the fiber member 340 in the exhaust air passage 316 (or the supply air passage 317).
  • the exhaust flow 303 (or the supply airflow 304) becomes a swirling flow 303c that swirls, the air in the exhaust flow 303 (or the supply airflow 304) becomes mixed, and the heat in the heat exchange element 306
  • the transmission rate is improved. Therefore, the heat exchange element 306 can improve the heat exchange efficiency as compared with the conventional heat exchange element.
  • the heat exchange element 306 has a configuration in which a plurality of fiber members 340 are exposed on the side surface of the rib 314.
  • the heat exchange element 306 flows along the uneven shape of the plurality of fiber members 340 itself, so that the exhaust flow 303 (or the air flow 304) vortexes. It becomes easy to generate a swirling flow 303c that winds around. Therefore, the air in the exhaust flow 303 (or in the supply airflow 304) becomes further mixed, and the heat exchange element 306 can improve the heat transfer coefficient in the heat exchange element 306.
  • the fiber member 340 has a first inclination of 390a from the upper side to the lower side of the rib 314a. Further, in the heat exchange element 306, on the other side of the pair of side surfaces of the ribs 314a and 314b that are adjacent to each other (the left side surface of the ribs 314b), the exhaust flow 303 (or the air flow 304) is directed from the upstream side to the downstream side.
  • the fiber member 340 has a second inclination of 390b from the lower side to the upper side of the rib 314b.
  • the heat exchange element 306 is moved from above to below the rib 314a with respect to the exhaust flow 303 (or the supply airflow 304) due to the first inclination 390a of the fiber member 340. Generates a flow 303a towards.
  • the second inclination 390b of the fiber member 340 causes the heat exchange element 306 to move upward from the lower side of the rib 314b with respect to the exhaust flow 303 (or the supply airflow 304). It creates an oncoming flow 303b. Therefore, the heat exchange element 306 can more reliably generate a swirling flow 303c in which the exhaust flow 303 (or the supply airflow 304) swirls, and the air in the exhaust flow 303 (or the supply airflow 304). Can be further mixed. That is, since the heat exchange element 306 can improve the heat transfer coefficient in the heat exchange element 306, the heat exchange efficiency can be improved as compared with the conventional heat exchange element.
  • the inclination angle ⁇ at the inclination 390 (first inclination 390a, second inclination 390b) of the fiber member 340 was set in the range of 20 ° to 70 °. In this range, when the exhaust flow 303 (or the supply air flow 304) flows along the inclination 390 of the fiber member 340, the exhaust air passage 316 (or the supply air passage 317) promotes the development of the swirling flow 303c. It is possible to suppress an increase in pressure loss due to the development of an excessive swirling flow 303c.
  • the heat exchange element 306 sets the inclination angle ⁇ in the range of 20 ° to 70 ° to suppress the increase in pressure loss and to reduce the amount of heat transferred to the exhaust flow 303 (or supply airflow 304). Can be increased.
  • the inclination angle ⁇ is less than 20 °, the swirling flow 303c is weakly developed, and the air in the exhaust flow 303 (or in the supply airflow 304) is not sufficiently mixed. Further, when the inclination angle ⁇ exceeds 70 °, the swirling flow 303c develops too strongly, resulting in ventilation resistance.
  • the heat exchange type ventilator 302 can improve the heat exchange efficiency.
  • the method of forming the fiber member 340 of the rib 314 according to the third embodiment by twisting is not limited to the method of forming by twisting an aggregate of a plurality of fiber materials.
  • a method of forming by twisting fibers on thick paper such as a pulp material a method of forming by knitting a plurality of fiber members 340, or a method of forming by twisting an aggregate of a plurality of fiber members 340.
  • a method in which several aggregates thereof are prepared and further twisted may be used.
  • a forming method capable of reducing voids is more preferable because it leads to an improvement in the rigidity of the rib 314 and thus an improvement in the strength of the heat exchange element 306.
  • the rib twisting directions R of the ribs 314a and 314b are arranged in the same clockwise direction when viewed from the upstream side to the downstream side of the exhaust flow 303. This is because it is difficult to improve the heat exchange efficiency when the rib twisting directions R of the ribs 314a and 314b are different. That is, if the rib twisting direction R of the rib 314a is clockwise and the rib twisting direction R of the rib 314b is counterclockwise, the rib 314a is arranged along the first inclination 390a on the right side surface of the rib 314a.
  • the airflow is 303a, which flows from above to below.
  • the air flow 303a flows from the upper side to the lower side of the rib 314b along the first inclination 390a.
  • the airflow directions are aligned, the swirling flow 303c is unlikely to occur in the exhaust air passage 316, and the airflow is circulated as the same layered airflow as the conventional heat exchange element, which is preferable from the viewpoint of improving the heat exchange efficiency of the heat exchange element. Absent.
  • the heat transfer plate 313 according to the third embodiment is an example of the "partition member” according to the present disclosure
  • the rib 314 is an example of the "interval holding member” according to the present disclosure.
  • Each piece 315 corresponds to an example of the "unit component” according to the present disclosure.
  • the exhaust air passage 316 according to the third embodiment is an example of the "exhaust air passage” according to the present disclosure
  • the air supply air passage 317 is an example of the "air supply air passage” according to the present disclosure
  • the exhaust flow 303 is the present disclosure.
  • the airflow 304 corresponds to an example of the “exhaust flow” according to the present disclosure, and corresponds to an example of the “airflow” according to the present disclosure.
  • the fiber member 340 according to the third embodiment corresponds to an example of the "fiber member” according to the present disclosure.
  • the inclination 390 according to the third embodiment is an example of the "inclination” according to the present disclosure
  • the first inclination 390a is an example of the “first inclination” according to the present disclosure
  • the second inclination 390b is the “inclination” according to the present disclosure.
  • the rib twisting direction R corresponds to an example of the "predetermined direction” according to the present disclosure.
  • the heat exchange type ventilator 302 according to the third embodiment corresponds to an example of the "heat exchange type ventilator” according to the present disclosure.
  • the heat exchange element 306 according to the third embodiment creates a vortex with respect to the airflow (exhaust flow 303 or supply airflow 304) flowing through the air passage (exhaust air passage 316 or air supply air passage 317).
  • a swirling flow 303c is generated so as to wind. Therefore, the heat exchange element 306 according to the third embodiment can improve the heat transfer coefficient in the air passage and the heat exchange efficiency, and can improve the heat exchange efficiency used in the heat exchange type ventilation device and the like. It is useful as an element.
  • the present disclosure is a heat exchange element used in a cold region or the like, which exchanges heat between an exhaust flow that exhausts indoor air to the outside and a supply air flow that supplies outdoor air to the room, and heat using the same. It relates to a replaceable ventilation system.
  • FIG. 30 is an exploded perspective view showing the structure of the conventional heat exchange element 41.
  • the conventional heat exchange element 41 is configured by laminating a large number of heat exchange element single units 42 composed of functional paper 43 having heat transfer properties and ribs 44.
  • a plurality of ribs 44 composed of a paper string 45 and a hot melt resin 46 for adhering the paper string 45 to the functional paper 43 are provided in parallel at predetermined intervals.
  • the ribs 44 create a gap between the pair of functional papers 43 that are laminated adjacent to each other, forming an air flow path 47.
  • the heat exchange element 41 is formed so that a plurality of gaps are laminated, and the air flow directions of the respective air flow paths 47 in the adjacent gaps are configured to be orthogonal to each other.
  • the air flow path 47 is alternately ventilated with the air supply air flow and the exhaust air flow for each functional paper 43, and heat exchange is performed between the air supply air flow and the exhaust flow.
  • Such a conventional heat exchange element is configured to maintain a distance between partition members (for example, the above-mentioned functional paper 43) by means of an interval holding member (for example, the above-mentioned rib 44). Further, the interval holding member is formed by wrapping a substantially circular fiber member (for example, the above-mentioned paper string 45) with an adhesive member (for example, the above-mentioned hot melt resin 46).
  • the present disclosure uses a heat exchange element capable of suppressing separation between the space holding member and the partition member on the outer peripheral portion when an external force is generated on the outer peripheral surface of the heat exchange element. It is an object of the present invention to provide a heat exchange type ventilation device.
  • the heat exchange element according to the present disclosure is exhausted by laminating a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided in parallel with each other on one surface of the partition member. It is a heat exchange element in which the air passage and the air supply air passage are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the supply air air passage exchange heat via a partition member.
  • the plurality of interval holding members are formed by spirally twisting the plurality of fiber members in the first direction around the direction in which the exhaust flow or the air supply flow flows.
  • a second interval holding member formed by twisting a plurality of fiber members in a spiral shape while rotating them in a second direction opposite to the first direction is included.
  • the heat exchange type ventilator according to the present disclosure is equipped with the above-mentioned heat exchange element.
  • the heat exchange element according to the present disclosure can suppress peeling between the interval holding member and the partition member at the outer peripheral portion when an external force is generated on the outer peripheral surface.
  • the heat exchange type ventilation device can improve maintainability.
  • the heat exchange element according to the present disclosure is an exhaust air passage in which a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members provided in parallel with each other is laminated on one surface of the partition member. And the air supply air passage are alternately configured one layer at a time, and the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the air supply air passage are heat exchange elements that exchange heat via a partition member.
  • the plurality of interval holding members are formed by spirally twisting the plurality of fiber members in the first direction around the direction in which the exhaust flow or the air supply flow flows.
  • a second interval holding member formed by twisting a plurality of fiber members in a spiral shape while rotating them in a second direction opposite to the first direction is included.
  • the heat exchange element according to the present disclosure uses, as the spacing holding member, a first spacing holding member and a second spacing holding member in which a plurality of fiber members are spirally twisted in different directions.
  • the first interval holding member and the second interval holding member differ in the misalignment direction that occurs between the partition members. Therefore, as compared with the case where the space holding member is composed of only one of the first space holding member and the second space holding member, the heat exchange element according to the present disclosure has a case where an external force is generated from one direction on the outer peripheral surface. It is hard to be deformed, that is, higher strength can be obtained. Therefore, the heat exchange element according to the present disclosure suppresses peeling between the interval holding member (first interval holding member, second interval holding member) and the partition member when an external force is generated on the outer peripheral surface. Can be done.
  • the first interval holding member moves toward the upper surface of the first interval holding member from the upstream side to the downstream side of the exhaust flow or air flow.
  • the second space holding member has an exhaust flow on the upper surface of the second space holding member.
  • the fiber member may be configured to have a second inclination from the left side to the right side of the second spacing member as it goes from the upstream side to the downstream side of the air supply.
  • the heat exchange element according to the present disclosure has a first spacing member that tends to be displaced along the direction of the first inclination and a second inclination that is different from the direction of the first inclination.
  • a second spacing holding member which is likely to be displaced along the direction of the above, is arranged in parallel on one surface of the partition member. Therefore, the heat exchange element according to the present disclosure is less likely to be deformed when an external force is applied to the outer peripheral surface from one direction, as compared with the case where the heat exchange element is composed of only one of the first interval holding member and the second interval holding member. That is, the heat exchange element according to the present disclosure can obtain higher element strength. Therefore, the heat exchange element according to the present disclosure suppresses peeling between the interval holding member (first interval holding member, second interval holding member) and the partition member when an external force is generated on the outer peripheral surface. Can be done.
  • the first interval holding member and the second interval holding member may be alternately arranged on one surface of the partition member.
  • the spacing members having different misalignment directions are alternately arranged in a distributed manner, so that the misalignment that occurs with the partition member can be more reliably suppressed. it can. Therefore, the heat exchange element according to the present disclosure can more reliably suppress deformation when an external force is generated on the outer peripheral surface.
  • heat exchange type ventilation device is configured to be equipped with the above-mentioned heat exchange element.
  • the heat exchange type ventilator according to the present disclosure is configured by using a heat exchange element having a higher element strength, so that maintainability can be improved.
  • FIG. 24 is a schematic view showing an installation state of the heat exchange type ventilator 402 including the heat exchange element 406 according to the fourth embodiment of the present disclosure.
  • FIG. 25 is a schematic view showing the structure of the heat exchange type ventilator 402.
  • the heat exchange type ventilation device 402 is installed indoors of the house 401.
  • the heat exchange type ventilator 402 is a device that ventilates while exchanging heat between indoor air and outdoor air.
  • the exhaust flow 403 is discharged to the outside via the heat exchange type ventilator 402 as shown by the black arrow.
  • the exhaust flow 403 is a flow of air discharged from indoors to outdoors.
  • the air supply 404 is taken into the room via the heat exchange type ventilator 402 as shown by the white arrow.
  • the air supply 404 is a flow of air taken in from the outside to the inside. For example, in winter in Japan, the exhaust flow 403 is 20 ° C to 25 ° C, while the airflow 404 may reach below freezing.
  • the heat exchange type ventilation device 402 ventilates and transfers the heat of the exhaust flow 403 to the supply airflow 404 during this ventilation to suppress the release of unnecessary heat.
  • the heat exchange type ventilation device 402 includes a main body case 405, a heat exchange element 406, an exhaust fan 407, an inside air port 408, an exhaust port 409, an air supply fan 410, an outside air port 411, and an air supply port 412. ing.
  • the main body case 405 is an outer frame of the heat exchange type ventilator 402.
  • An inside air port 408, an exhaust port 409, an outside air port 411, and an air supply port 412 are formed on the outer periphery of the main body case 405.
  • the inside air port 408 is a suction port for sucking the exhaust flow 403 into the heat exchange type ventilation device 402.
  • the exhaust port 409 is a discharge port that discharges the exhaust flow 403 from the heat exchange type ventilation device 402 to the outside.
  • the outside air port 411 is a suction port for sucking the air supply 404 into the heat exchange type ventilation device 402.
  • the air supply port 412 is a discharge port that discharges the air supply 404 indoors from the heat exchange type ventilat
  • a heat exchange element 406, an exhaust fan 407, and an air supply fan 410 are installed inside the main body case 405.
  • the heat exchange element 406 is a member for exchanging heat between the exhaust flow 403 and the supply air flow 404.
  • the exhaust fan 407 is a blower for sucking the exhaust flow 403 from the inside air port 408 and discharging it from the exhaust port 409.
  • the air supply fan 410 is a blower for sucking the air supply 404 from the outside air port 411 and discharging it from the air supply port 412.
  • the exhaust flow 403 sucked from the inside air port 408 by driving the exhaust fan 407 is discharged to the outside from the exhaust port 409 via the heat exchange element 406 and the exhaust fan 407. Further, the air supply 404 sucked from the outside air port 411 by driving the air supply fan 410 is supplied indoors from the air supply port 412 via the heat exchange element 406 and the air supply fan 410.
  • FIG. 26 is a perspective view showing the structure of the heat exchange element 406.
  • FIG. 27 is a diagram showing the structure of the rib 414 constituting the heat exchange element 406.
  • FIG. 27 (a1) is a perspective view of the first rib 414a.
  • FIG. 27 (a2) is a side view of the first rib 414a as viewed from the A side, which is a top view.
  • FIG. 27 (b1) is a perspective view of the second rib 414b.
  • FIG. 27 (b2) is a side view of the second rib 414b as viewed from the A side, which is a top view.
  • the heat exchange element 406 is composed of a plurality of heat exchange element pieces 415.
  • a plurality of ribs 414 (first ribs 414a and second ribs 414b, which will be described later) are adhered to each heat exchange element piece 415 on one surface of a substantially square heat transfer plate 413.
  • the heat exchange element 406 is formed by laminating a plurality of heat exchange element pieces 415 in different directions one by one so that the ribs 414 are orthogonal to each other.
  • an exhaust air passage 416 through which the exhaust flow 403 is ventilated and an air supply air passage 417 through which the air supply airflow 404 is ventilated are formed, and the exhaust airflow 403 and the air supply airflow 404 flow alternately at right angles to each other. It has become possible to exchange heat between them.
  • the heat exchange element piece 415 is one unit constituting the heat exchange element 406. As described above, the heat exchange element piece 415 is formed by adhering a plurality of ribs 414 on one surface of a substantially square heat transfer plate 413. The rib 414 on the heat transfer plate 413 is formed so that its longitudinal direction is directed from one end side of the heat transfer plate 413 to the other end side facing the rib 414. Each of the plurality of ribs 414 is formed in a straight line. Each of the ribs 414 is arranged in parallel on the surface of the heat transfer plate 413 at predetermined intervals. Specifically, as shown in FIG.
  • the rib 414 is placed on one surface of the heat transfer plate 413 constituting one of the heat exchange element pieces 415. Is formed by adhering so that the longitudinal direction of the heat transfer plate 413 is directed from the end side 413a of the heat transfer plate 413 toward the opposite end side 413c. Further, on one surface of the heat transfer plate 413 constituting the other heat exchange element piece 415, the longitudinal direction of the rib 414 is from the end side 413b (the end side perpendicular to the end side 413a) of the heat transfer plate 413. It is formed by adhering so as to face the opposite end sides 413d.
  • the heat transfer plate 413 is a plate-shaped member for exchanging heat when the exhaust flow 403 and the supply air flow 404 flow across the heat transfer plate 413.
  • the heat transfer plate 413 is formed of heat transfer paper based on cellulose fibers, and has heat transfer property, moisture permeability, and hygroscopic property.
  • the material of the paper is not limited to this.
  • As the heat transfer plate 413 for example, a moisture-permeable resin film based on polyurethane or polyethylene terephthalate, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber can be used.
  • the heat transfer plate 413 is a thin sheet having heat transfer properties, and one having a property of not allowing gas to permeate can be used.
  • the plurality of ribs 414 are provided between a pair of opposite end sides of the heat transfer plate 413, and are formed so as to go from one end side to the other end side.
  • the rib 414 has a substantially cylindrical shape for forming an exhaust air passage 416 or an air supply air passage 417, that is, a gap for passing an exhaust flow 403 or an air flow 404 between the heat transfer plates 413 when the heat transfer plates 413 are stacked. It is a member of.
  • As the cross-sectional shape of the rib 414 a member having a substantially flat shape, a rectangular shape, a hexagonal shape, or the like may be used in addition to the substantially circular shape.
  • a plurality of (7 as an example in FIG. 26) ribs 414 are provided on one surface of the heat transfer plate 413 with a plurality of (4 as an example in FIG. 26) first ribs 414a and a plurality (4 in FIG. 26).
  • three) second ribs 414b are alternately arranged. Therefore, in FIG. 26, the first rib 414a is arranged on the outermost circumference of the rib 414.
  • the first ribs 414a and the second ribs 414b are alternately arranged on one surface of the heat transfer plate 413.
  • Each of the first rib 414a and the second rib 414b has a substantially circular cross section as shown in (a1) of FIG. 27 and (b1) of FIG. 27.
  • the rib 414 (first rib 414a, second rib 414b) is composed of a plurality of fiber members 440. Further, the rib 414 is configured by impregnating each minute gap of the fiber member 440 with an adhesive, but the fiber member 440 is exposed on the outermost surface of the rib 414.
  • known adhesives and bonding methods can be used depending on the material of the rib 414, such as application of an adhesive, attachment of a sealing material, and heat welding. There is no difference.
  • each of the fiber members 440 is a fiber member having a substantially circular cross section and extending in the same direction as the rib 414.
  • the material of the fiber member 440 it is sufficient if it has hygroscopicity and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a paper material based on cellulose fiber, ceramic fiber, or glass fiber, cotton, silk, or linen can be used as the material of the fiber member 440.
  • first rib 414a and the second rib 414b constituting the plurality of ribs 414 will be described in more detail with reference to FIG. 27.
  • the arrow on the axis X indicates the direction in which the exhaust flow 403 or the supply airflow 404 flows. That is, the starting point side of the arrow of the axis X is the upstream side of the exhaust flow 403 or the air supply 404, and the tip end side of the arrow of the axis X is the downstream side of the exhaust flow 403 or the air flow 404.
  • the first rib 414a is an aggregate of a plurality of fiber members 440 when viewed from the upstream side to the downstream side of the exhaust flow 403 or the air flow 404 (7 as an example in FIG. 27). This) is spirally twisted while rotating in the same first rib twisting direction R1.
  • the first rib twisting direction R1 is a counterclockwise direction.
  • the plurality of ribs 414 are formed by spirally twisting the plurality of fiber members 440 in the first rib twisting direction R1 with the direction in which the exhaust flow 403 or the air flow 404 flows as the axis X. It is arranged including the first rib 414a.
  • the first rib 414a is formed by spirally twisting an aggregate of a plurality of fiber members 440 as described above, the upper surface of the first rib 414a is in a state where the fiber member 440 is inclined. .. That is, it can be said that the inclined 490 of the fiber member 440 is formed on the upper surface of the first rib 414a.
  • the exhaust flow 403 or the supply airflow 404 is from the upstream side to the downstream side.
  • the fiber member 440 has a first inclination of 490a (inclination 490) from the right side to the left side of the first rib 414a.
  • the angle (gradient) at which the fiber member 440 is inclined is defined as the first inclination angle ⁇ 1
  • the first inclination angle ⁇ 1 of the first inclination 490a of the fiber member 440 is 20 ° to 70 °. It is more preferably 45 °.
  • the fiber member 440 is configured to have a first slope 490a from the right side to the left side of the first rib 414a as it goes from the upstream side to the downstream side of the exhaust flow 403 or the air flow 404.
  • the second rib 414b is from the upstream side to the downstream side of the exhaust flow 403 or the supply air flow 404 when the direction in which the exhaust flow 403 or the supply air flow 404 flows is the axis X.
  • an aggregate of a plurality of fiber members 440 (in FIG. 27, the same seven as the first rib 414a as an example) is spirally twisted while rotating in the same second rib twisting direction R2.
  • the second rib twisting direction R2 is a clockwise direction.
  • the plurality of ribs 414 rotate the plurality of fiber members 440 in the second rib twisting direction R2 opposite to the first rib twisting direction R1 with the direction in which the exhaust flow 403 or the airflow 404 flows as the axis X. It is arranged including the second rib 414b formed by twisting in a spiral shape.
  • the second rib 414b is formed by spirally twisting an aggregate of a plurality of fiber members 440 as described above, the upper surface of the second rib 414b is in a state where the fiber member 440 is inclined. .. That is, it can be said that the inclined 490 of the fiber member 440 is formed on the upper surface of the second rib 414b.
  • the fiber member 440 has a second inclination 490b (inclination 490) from the left side to the right side of the second rib 414b.
  • the angle (gradient) at which the fiber member 440 is inclined is defined as the second inclination angle ⁇ 2
  • the second inclination angle ⁇ 2 of the second inclination 490b of the fiber member 440 is 20 ° to 70 °. It is more preferably 45 °.
  • the first inclination 490a and the second inclination 490b are configured to have the same inclination.
  • the fiber member 440 is configured with a second slope 490b from the left side to the right side of the second rib 414b as it goes from the upstream side to the downstream side of the exhaust flow 403 or the supply airflow 404.
  • FIG. 28 is a diagram for comparing and explaining the arrangement of the ribs 414 of the heat exchange element piece 415 constituting the heat exchange element 406.
  • FIG. 28A is a plan view of the heat exchange element piece 415 according to the present embodiment
  • FIG. 28B is a plan view of the heat exchange element piece 415a according to a comparative example.
  • the first rib 414a and the second rib 414a and the second rib 414 are provided as a plurality of ribs 414 provided on one surface of the heat transfer plate 413.
  • the ribs 414b are alternately arranged in parallel.
  • the heat exchange element piece 415a according to the comparative example as shown in FIG. 28 (b), only the first rib 414a is arranged in parallel as a plurality of ribs 414 provided on one surface of the heat transfer plate 413. Is arranged.
  • the plurality of ribs 414 may be composed of only the second rib 414b.
  • each of the plurality of ribs 414 is formed by twisting a plurality of fiber members 440 in a spiral shape, an inclination 490 due to the fiber members 440 is formed on the upper surface of the rib 414.
  • the rib 414 is likely to be displaced from the heat transfer plate 413 along the inclination 490 of the fiber member 440. That is, the first rib 414a is likely to be displaced from the heat transfer plate 413 in the first positional deviation direction 430a along the direction of the first inclination 490a.
  • the second rib 414b is likely to be misaligned with the heat transfer plate 413 in the second misalignment direction 430b along the second inclination 490b. Therefore, when an external force is applied from one direction to the outer peripheral surface of the heat exchange element in which the heat exchange element pieces 415a according to the comparative example are laminated, the entire rib 414 is displaced in the first misalignment direction 430a and heat exchange is performed. The element will be deformed.
  • the heat exchange element 406 in which the heat exchange element pieces 415 according to the fourth embodiment are laminated is compared with the case of the heat exchange element according to the comparative example when an external force is applied to the outer peripheral surface from one direction.
  • the heat exchange element 406 is not easily deformed. This is because the heat exchange element 406 in which the heat exchange element pieces 415 according to the fourth embodiment are laminated has the first rib 414a and the second rib 414b having different misalignment directions arranged in a mixed manner. ..
  • a plurality of ribs 414 formed on one surface of the heat transfer plate 413 are configured to include the first rib 414a and the second rib 414b.
  • the first rib 414a is formed by spirally twisting a plurality of fiber members 440 in the first rib twisting direction R1 with the direction in which the exhaust flow 403 or the air flow 404 flows as the axis X. is there.
  • the second rib 414b rotates a plurality of fiber members 440 in the second rib twisting direction R2 opposite to the first rib twisting direction R1 with the direction in which the exhaust flow 403 or the airflow 404 flows as the axis X. It is formed by twisting in a spiral shape.
  • the first rib 414a and the second rib 414b which have different directions in which the plurality of fiber members 440 are spirally twisted, have different misalignment directions that occur between the heat transfer plate 413. Therefore, as compared with the case where the heat exchange element 406 is composed of only the first rib 414a (or the second rib 414b) (the heat exchange element according to the comparative example shown in FIG. 28), an external force is applied to the outer peripheral surface from one direction. It is hard to deform when it occurs. That is, the heat exchange element 406 can obtain a higher element strength. Therefore, the heat exchange element 406 can suppress peeling between the rib 414 (first rib 414a, second rib 414b) and the heat transfer plate 413 when an external force is generated on the outer peripheral surface.
  • the first rib 414a is placed on the upper surface of the first rib 414a from the upstream side of the exhaust flow 403 or the air flow 404.
  • the fiber member 440 is configured to have a first slope 490a from the right side to the left side of the first rib 414a toward the downstream side.
  • the second rib 414b is placed on the upper surface of the second rib 414b from the upstream side to the downstream side of the exhaust flow 403 or the air flow 404.
  • the fiber member 440 is configured with a second slope 490b from the left side to the right side of the second rib 414b.
  • first rib 414a is likely to be misaligned with the heat transfer plate 413 along the direction of the first inclination 490a
  • second rib 414b is first with the heat transfer plate 413.
  • Positional deviation is likely to occur along the direction of the second inclination 490b, which is different from the direction of the inclination 490a. That is, in the heat exchange element 406, the first rib 414a and the second rib 414b having different misalignment directions are arranged in parallel on one surface of the heat transfer plate 413.
  • the heat exchange element 406 is less likely to be deformed when an external force is generated from one direction on the outer peripheral surface, as compared with the case where the heat exchange element 406 is composed of only the first rib 414a as in the heat exchange element of the comparative example. That is, the heat exchange element 406 can obtain a higher element strength. Therefore, the heat exchange element 406 can suppress peeling between the rib 414 (first rib 414a, second rib 414b) and the heat transfer plate 413 when an external force is generated on the outer peripheral surface.
  • the first ribs 414a and the second ribs 414b are alternately arranged on one surface of the heat transfer plate 413.
  • the first ribs 414a and the second ribs 414b which have different misalignment directions, are alternately arranged in a distributed manner, so that the misalignment that occurs between the heat transfer plate 413 and the heat transfer plate 413 is more reliably suppressed. be able to. Therefore, the heat exchange element 406 can more reliably suppress deformation when an external force is generated on the outer peripheral surface.
  • the heat exchange efficiency can be improved and the maintainability can be improved.
  • the first rib 414a and the second rib 414b are alternately arranged in parallel on one surface of the heat transfer plate 413, but the present invention is not limited to this.
  • it is divided into a region where the first rib 414a is formed (for example, the left side region of the heat transfer plate 413) and a region where the second rib 414b is formed (for example, the right side region of the heat transfer plate 413).
  • a plurality of ribs 414 may be arranged.
  • FIG. 29 Such a modification will be described with reference to FIG. 29.
  • FIG. 29 is a plan view of the heat exchange element piece (heat exchange element piece 415b, heat exchange element piece 415c) according to the modified example. Specifically, FIG. 29 (a) shows a plan view of the heat exchange element piece 415b according to the first modification, and FIG. 29 (b) shows the heat exchange element piece 415c according to the second modification. The plan view is shown.
  • the first rib 414a and the first rib 414a are arranged as follows. That is, the four first ribs 414a are arranged in the left side region of the heat transfer plate 413, and the three second ribs 414b are formed in the right side region of the heat transfer plate 413.
  • the heat exchange element pieces 415b according to the first modification have ribs 414 (first ribs 414a, second ribs 414b) which are different in number but different in the misalignment direction with the heat transfer plate 413. Including. Therefore, the heat exchange element (made by stacking the heat exchange element pieces 415b) according to the first modification is the first rib like the heat exchange element (made by stacking the heat exchange element pieces 415a) according to the comparative example. Compared with the case where only 414a is used, it is less likely to be deformed when an external force is applied to the outer peripheral surface from one direction. That is, the heat exchange element according to the first modification can obtain a higher element strength.
  • the first rib of the six ribs 414 formed on one surface of the heat transfer plate 413 is the first rib.
  • the 414a and the second rib 414b are arranged as follows. That is, the three first ribs 414a are arranged in the left side region of the heat transfer plate 413, and the three second ribs 414b are formed in the right side region of the heat transfer plate 413.
  • the heat exchange element piece 415c according to the second modification has the same number of the first ribs 414a and the second ribs 414b, so that the heat exchange element piece 415c is displaced from the heat transfer plate 413.
  • the ribs 414 (first rib 414a, second rib 414b) having different directions can be balanced. Therefore, the heat exchange element according to the second modification obtained by laminating the heat exchange element pieces 415c according to the second modification is unlikely to be deformed even when an external force is applied to the outer peripheral surface from any direction.
  • the method of forming the fiber member 440 of the rib 414 according to the fourth embodiment by twisting is not limited to the method of forming by twisting an aggregate of a plurality of fiber materials.
  • a method of forming by twisting fibers on thick paper such as a pulp material a method of forming by knitting a plurality of fiber members 440, or a method of forming by twisting an aggregate of a plurality of fiber members 440.
  • a method in which several aggregates thereof are prepared and further twisted may be used.
  • a forming method capable of reducing voids is more preferable because it leads to an improvement in the rigidity of the rib 414 and thus an improvement in the strength of the heat exchange element 406.
  • the heat transfer plate 413 according to the fourth embodiment corresponds to an example of the "partition member” according to the present disclosure
  • the rib 414 corresponds to an example of the "interval holding member” according to the present disclosure
  • the first rib 414a according to the fourth embodiment is an example of the "first interval holding member” according to the present disclosure
  • the second rib 414b is an example of the "second interval holding member” according to the present disclosure
  • the element piece 415 corresponds to an example of the "unit component” according to the present disclosure.
  • the exhaust air passage 416 according to the fourth embodiment is an example of the "exhaust air passage” according to the present disclosure
  • the air supply air passage 417 is an example of the "air supply air passage” according to the present disclosure
  • the exhaust flow 403 is the present disclosure.
  • the airflow 404 corresponds to an example of the “exhaust flow” according to the present disclosure, and corresponds to an example of the “airflow” according to the present disclosure.
  • the fiber member 440 according to the fourth embodiment is an example of the "fiber member” according to the present disclosure
  • the inclination 490 is an example of the "inclination” according to the present disclosure
  • the first inclination 490a is the "first" according to the present disclosure.
  • the second slope 490b corresponds to an example of the "second slope” according to the present disclosure.
  • the first rib twisting direction R1 according to the fourth embodiment corresponds to an example of the "first direction” according to the present disclosure
  • the second rib twisting direction R2 corresponds to an example of the "second direction” according to the present disclosure.
  • the heat exchange type ventilator 402 according to the fourth embodiment corresponds to an example of the "heat exchange type ventilator" according to the present disclosure.
  • the heat exchange element 406 according to the fourth embodiment can suppress peeling between the interval holding member and the partition member on the outer peripheral portion when an external force is generated on the outer peripheral surface. Therefore, it is useful as a heat exchange element used in a heat exchange type ventilation device or the like.
  • the heat exchange element according to the present disclosure is useful as a heat exchange element used in a heat exchange type ventilator or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Élément d'échange de chaleur (106) comportant une pièce d'élément d'échange de chaleur (115) qui comprend : une plaque de transfert de chaleur (113) qui est en forme de feuille, qui possède des propriétés de transfert de chaleur et dont la direction de fibre (130) est orientée dans une direction fixe ; et des nervures (114) qui sont disposées sur une surface de la plaque de transfert de chaleur (113), s'étendant le long de la direction de fibre (130). Par superposition des pièces d'élément d'échange de chaleur dans la direction verticale, des trajets d'écoulement d'évacuation d'air (116) et des trajets d'écoulement d'alimentation en air (117) sont formés un à un en alternance.
PCT/JP2020/024533 2019-08-28 2020-06-23 Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur l'utilisant WO2021039064A1 (fr)

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JP2019-155129 2019-08-28
JP2019155129A JP2021032523A (ja) 2019-08-28 2019-08-28 熱交換素子の製造方法、及びこれにより製造される熱交換素子
JP2019157590A JP2021036177A (ja) 2019-08-30 2019-08-30 熱交換素子、及びそれを用いた熱交換形換気装置
JP2019-157590 2019-08-30
JP2019-172408 2019-09-24
JP2019172408A JP2021050833A (ja) 2019-09-24 2019-09-24 熱交換素子、及びそれを用いた熱交換形換気装置
JP2019-196076 2019-10-29
JP2019196076A JP2021071206A (ja) 2019-10-29 2019-10-29 熱交換素子、及びそれを用いた熱交換形換気装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220178630A1 (en) * 2019-02-27 2022-06-09 Panasonic Intellectual Property Management Co., Ltd. Heat exchange element and heat exchange-type ventilation device using same
US20220205729A1 (en) * 2020-12-28 2022-06-30 Huawei Digital Power Technologies Co., Ltd. Heat exchanger, modular indirect evaporation cooling system, and method for controlling modular indirect evaporation cooling system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11248390A (ja) * 1998-03-05 1999-09-14 Daikin Ind Ltd 熱交換エレメント及びその製造方法
JP2019060582A (ja) * 2017-09-28 2019-04-18 パナソニックＩｐマネジメント株式会社 全熱交換素子用仕切部材、全熱交換素子用仕切部材を用いた全熱交換素子および全熱交換形換気装置
WO2019124286A1 (fr) * 2017-12-22 2019-06-27 パナソニックＩｐマネジメント株式会社 Élément d'échange de chaleur, et dispositif de ventilation de type à échange de chaleur faisant appel à celui-ci

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11248390A (ja) * 1998-03-05 1999-09-14 Daikin Ind Ltd 熱交換エレメント及びその製造方法
JP2019060582A (ja) * 2017-09-28 2019-04-18 パナソニックＩｐマネジメント株式会社 全熱交換素子用仕切部材、全熱交換素子用仕切部材を用いた全熱交換素子および全熱交換形換気装置
WO2019124286A1 (fr) * 2017-12-22 2019-06-27 パナソニックＩｐマネジメント株式会社 Élément d'échange de chaleur, et dispositif de ventilation de type à échange de chaleur faisant appel à celui-ci

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220178630A1 (en) * 2019-02-27 2022-06-09 Panasonic Intellectual Property Management Co., Ltd. Heat exchange element and heat exchange-type ventilation device using same
US20220205729A1 (en) * 2020-12-28 2022-06-30 Huawei Digital Power Technologies Co., Ltd. Heat exchanger, modular indirect evaporation cooling system, and method for controlling modular indirect evaporation cooling system

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