WO2021131725A1 - Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur le mettant en œuvre - Google Patents

Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur le mettant en œuvre Download PDF

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Publication number
WO2021131725A1
WO2021131725A1 PCT/JP2020/045964 JP2020045964W WO2021131725A1 WO 2021131725 A1 WO2021131725 A1 WO 2021131725A1 JP 2020045964 W JP2020045964 W JP 2020045964W WO 2021131725 A1 WO2021131725 A1 WO 2021131725A1
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WIPO (PCT)
Prior art keywords
heat exchange
exchange element
rib
air
heat
Prior art date
Application number
PCT/JP2020/045964
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English (en)
Japanese (ja)
Inventor
元気 畑
洋祐 浜田
雅理 村松
正人 本多
栄作 熊澤
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.)
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Publication date
Priority claimed from JP2019231060A external-priority patent/JP2021099183A/ja
Priority claimed from JP2019237817A external-priority patent/JP2021105496A/ja
Priority claimed from JP2020006915A external-priority patent/JP2021113650A/ja
Priority claimed from JP2020014346A external-priority patent/JP2021120609A/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
Publication of WO2021131725A1 publication Critical patent/WO2021131725A1/fr

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    • 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
    • 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
    • F28F21/06—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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Definitions

  • the present disclosure is used in a cold region or the like, and is a heat exchange element that 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.
  • Patent Document 1 As a structure of a heat exchange element used in this type of heat exchange type ventilation device, for example, the one described in Patent Document 1 is known in order to realize cost reduction and weight reduction.
  • FIG. 6 is an exploded perspective view showing the structure of the conventional heat exchange element 11.
  • the heat exchange element 11 is configured by laminating a large number of heat exchange element single units 12 composed of a 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 create a gap between the pair of functional papers 13 that are laminated adjacent to each other, forming 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. As a result, the air supply airflow and the exhaust airflow alternately ventilate the air flow path 17 for each functional paper 13, and heat exchange is performed between the air supply airflow and the exhaust flow.
  • the conventional heat exchange element has a configuration in which a plurality of paper strings having a substantially circular cross section are bonded with hot melt resin so as to be in direct contact with the functional paper (a state in which the circle and the surface are in contact with each other).
  • the bonding area is small and the adhesive force is weakened. Therefore, when an external force such as accidentally pushing the surface of the heat exchange element by hand is generated during maintenance or the like, between the interval holding member such as the above-mentioned paper string and the partition member such as the above-mentioned functional paper, for example. Will cause peeling.
  • the conventional heat exchange element has a problem that the ventilation volume is insufficient because the air that has been ventilated inside the heat exchange element leaks to the outside of the heat exchange element.
  • the heat exchange element when an external force is generated on the outer peripheral surface of the heat exchange element, the heat exchange element capable of suppressing the peeling between the interval holding member and the partition member on the outer peripheral portion and suppressing the decrease in the ventilation volume and the heat exchange element. It is an object of the present invention to provide a heat exchange type ventilation device using the same.
  • the exhaust air passage and the air supply air are obtained by laminating a unit constituent member including a partition member having heat transfer property and a plurality of interval holding members formed on one surface of the partition member.
  • 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 via a partition member.
  • the plurality of interval holding members include a first interval holding member located on both ends of the partition member, and a plurality of second interval holding members located inside the partition member rather than the first interval holding member. It is configured. Further, between the first interval holding member and the second interval holding member adjacent to the first interval holding member, a first interval holding member and a second interval holding member adjacent to the first interval holding member are provided. It is characterized in that a fixing member to be fixed is formed.
  • the heat exchange type ventilation device is characterized in that the above-mentioned heat exchange element is mounted.
  • the heat exchange element and the heat exchange type ventilation device using the heat exchange element according to the present disclosure suppresses 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 of the heat exchange element.
  • the decrease in ventilation volume can be suppressed.
  • FIG. 1 is a schematic view showing an example of installation 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 according to the first embodiment of the present disclosure.
  • FIG. 4 is a partially enlarged view showing the structure of the rib according to the first embodiment of the present disclosure.
  • FIG. 5 is a partially enlarged view showing the structure of the heat exchange element piece according to the first embodiment of the present disclosure.
  • FIG. 6 is an exploded perspective view showing the structure of a conventional heat exchange element.
  • FIG. 7 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. 7 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. 8 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 9 is a perspective view showing the structure of the heat exchange element according to the second embodiment of the present disclosure.
  • FIG. 10 is a perspective view showing the structure of the heat exchange element cell according to the second embodiment of the present disclosure.
  • FIG. 11 is an exploded perspective view showing an example of assembling a plurality of heat exchange element cells constituting the same heat exchange element.
  • FIG. 12 is a plan view showing the structure of the heat exchange element.
  • FIG. 13 is a plan view showing the structure of the heat exchange element in which the heat exchange element cells according to the modified example are connected.
  • FIG. 14 is a perspective view of a conventional heat exchange element.
  • FIG. 15 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. 16 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 17 is an exploded perspective view showing the structure of the heat exchange element according to the third embodiment of the present disclosure.
  • FIG. 18 is a perspective view of the heat exchange element piece according to the third embodiment of the present disclosure.
  • FIG. 19 is a diagram showing the structure of the rib according to the third embodiment of the present disclosure.
  • FIG. 20 is an exploded perspective view of a conventional heat exchange element.
  • FIG. 21 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. 22 is a schematic view showing the structure of the heat exchange type ventilator.
  • FIG. 23 is an exploded perspective view showing the structure of the heat exchange element according to the fourth embodiment of the present disclosure.
  • FIG. 24 is a diagram showing the structure of the heat exchange element piece according to the fourth embodiment of the present disclosure.
  • FIG. 25 is a diagram showing a method of manufacturing ribs according to the fourth embodiment of the present disclosure.
  • FIG. 26 is a partial cross-sectional view showing the same heat exchange element piece and its laminating process.
  • FIG. 27 is a partial cross-sectional view of the same heat exchange element pieces in a laminated state.
  • FIG. 28 is a perspective view of a conventional heat exchange element.
  • 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 formed on one surface of the partition member.
  • Each layer is alternately configured, 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 plurality of interval holding members include a first interval holding member located on both ends of the partition member, and a plurality of second interval holding members located inside the partition member rather than the first interval holding member. It is configured. Further, between the first interval holding member and the second interval holding member adjacent to the first interval holding member, a first interval holding member and a second interval holding member adjacent to the first interval holding member are provided. A fixing member to be fixed is formed.
  • the fixing member firmly joins the interval holding member (the first interval holding member and the second interval holding member adjacent thereto) located at the end edge of the heat transfer plate and the partition member. Therefore, the heat exchange element according to the present disclosure can increase the adhesive strength between the interval holding member and the partition member at the end side. Therefore, peeling is unlikely to occur between the interval holding member located at the end side and the partition member, and the heat exchange element according to the present disclosure can suppress a decrease in ventilation volume.
  • the spacing between the first spacing member and the second spacing member adjacent to the first spacing member is the second spacing holding member adjacent to each other. It is preferable that the members are formed so as to be narrower than the distance between the members. By doing so, the heat exchange element according to the present disclosure can secure the cross-sectional area of the air passage without increasing the size of the heat exchange element, and can increase the adhesive strength between the space holding member and the partition member at the end side. it can.
  • the hygroscopicity of the fixing member is smaller than the hygroscopicity of the second interval holding member.
  • the hygroscopicity of the first interval holding member is smaller than the hygroscopicity of the second interval holding member.
  • the moisture (water vapor) in the air outside the heat exchange element according to the present disclosure diffuses through the first interval holding member and the fixing member, and the second interval adjacent to the first interval holding member. Reaching the holding member is suppressed. Therefore, the heat exchange element according to the present disclosure can prevent breakage of the adhesive member that fixes the second interval holding member and the partition member, which occurs when the second interval holding member absorbs moisture and expands. Therefore, the heat exchange element according to the present disclosure can further reduce the peeling that occurs between the interval holding member located at the end side and the partition member.
  • the first interval holding member is formed with a sealing member that covers the outer peripheral surface side of the heat exchange element.
  • the heat exchange element according to the present disclosure can prevent breakage of the adhesive member that fixes the first interval holding member and the partition member, which occurs when the first interval holding member absorbs moisture and expands. Therefore, the heat exchange element according to the present disclosure can further reduce the peeling that occurs between the interval holding member located at the end side and the partition member.
  • the 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 can enjoy the effects of the heat exchange element described above, and the reliability as the heat exchange type ventilator is improved.
  • FIG. 1 is a schematic view showing an installation example of a heat exchange type ventilator 102 including a heat exchange element 106 in a house.
  • 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 ventilator 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.
  • 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.
  • FIG. 4 is a partially enlarged view showing the structure of the rib 114.
  • FIG. 5 is a partially enlarged view of the heat exchange element piece 115 constituting the heat exchange element 106.
  • the rib 114 includes an inner rib 114a and an outer rib 114b, but when it is not necessary to distinguish between the inner rib 114a and the outer rib 114b, the rib 114 is simply described as the rib 114.
  • the heat exchange element 106 is composed of a plurality of heat exchange element pieces 115.
  • a plurality of ribs 114 (inner ribs 114a and outer ribs 114b, which will be described later) 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.
  • the exhaust air passage 116 through which the exhaust flow 103 is ventilated and the air supply air passage 117 through which the air supply airflow 104 is ventilated are alternately formed layer by layer with the exhaust flow 103.
  • the air supply 104 and the air supply 104 flow alternately at right angles to each other.
  • the heat exchange element 106 enables heat exchange between the exhaust flow 103 and the supply airflow 104 via the heat transfer plate 113.
  • 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 other end side facing the rib 114. The ribs 114 are arranged in parallel at predetermined intervals. Specifically, as shown in FIG. 3, of two heat exchange element pieces 115 adjacent to each other on the upper and lower sides, ribs are formed on one surface of the heat transfer plate 113 constituting one of the heat exchange element pieces 115.
  • the ribs 114 are formed by adhesion so that the longitudinal direction of the 114 is directed from the end side 113a of the heat transfer plate 113 to 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 the end side of the heat transfer plate 113 constituting the one heat exchange element piece 115.
  • the ribs 114 are formed by adhesion so as to go from the 113b (end side substantially orthogonal to the end side 113a) side to the opposite end side 113d side.
  • the heat exchange element piece 115 includes ribs 114 (outer ribs 114b, which will be described later) located on the outermost circumference (both ends of the heat transfer plate 113) and ribs 114 located on the outermost circumference among the plurality of ribs 114.
  • a fixing material 150 is formed between the adjacent ribs 114 (inner ribs 114a described later).
  • the heat exchange element piece 115 is formed with a sealing material 151 on the outer peripheral surface side of the rib 114 located on the outermost circumference. The rib 114, the fixing material 150, and the sealing material 151 will be described later.
  • the heat transfer plate 113 is a plate-shaped member for exchanging heat when the exhaust flow 103 and the air supply air flow 104 flow across the heat transfer plate 113.
  • the heat transfer plate 113 is formed of heat transfer paper based on cellulose fibers, and has heat transfer property, moisture permeability, and hygroscopic property.
  • the material of the heat transfer plate 113 is not limited to this.
  • As the heat transfer plate 113 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 113 may be a thin sheet having heat transfer properties and having a property of not allowing gas to permeate.
  • a 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 has a substantially cylindrical shape 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. It is a member of.
  • a member having a shape such as a substantially rectangular shape or a hexagonal shape may be used in addition to the substantially circular shape.
  • the plurality of ribs 114 are located between the outer ribs 114b arranged along the edge (outer edge) of the heat transfer plate 113 and the outer ribs 114b on both ends. It has a plurality of inner ribs 114a to be formed. That is, the plurality of ribs 114 are configured to include outer ribs 114b located on both ends of the heat transfer plate 113 and a plurality of inner ribs 114a located inside the heat transfer plate 113 with respect to the outer ribs 114b. ..
  • the outer rib 114b is a rib formed along each of the end side 113b and the end side 113d at the end side of the heat transfer plate 113 which is the position of the outermost periphery of the rib 114 among the plurality of ribs 114.
  • the inner rib 114a is a rib formed in a region sandwiched between the outer ribs 114b on both ends of the plurality of ribs 114.
  • the outer rib 114b and the inner rib 114a have the same member and the same structure.
  • each of the plurality of ribs 114 (outer rib 114b, inner rib 114a) has a substantially circular cross section.
  • the rib 114 is composed of a plurality of fiber members 140, and is fixed in direct contact with the heat transfer plate 113 via the adhesive member 141. Further, the rib 114 has an adhesive member 141 on the surface layer, and is configured by impregnating each minute gap between the fiber members 140 with the adhesive member 141.
  • each of the fiber members 140 has a substantially circular cross section and extends in the same direction as the rib 114.
  • the material of the fiber member 140 it is sufficient that it has moisture absorption and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a cellulose fiber, ceramic fiber, or glass fiber is used as a base. Paper materials, cotton, silk, and linen can be used.
  • the rib 114 is arranged on one surface of the heat transfer plate 113. It may be carried out by heat welding of the adhesive member 141 on the surface layer. Alternatively, the rib 114 and the heat transfer plate 113 are fixed to each other by arranging the rib 114 on one surface of the heat transfer plate 113 and coating the adhesive member 141 to the plurality of fiber members 140 constituting the rib 114. Impregnation and heat welding with the heat transfer plate 113 may be performed at the same time.
  • the plurality of ribs 114 have an interval (interval Lab) between the outer rib 114b and the inner rib 114a adjacent to the outer rib 114b, and the interval (interval Laa) between the inner ribs 114a adjacent to each other. ) Is formed to be narrower than.
  • the interval Lac is preferably smaller than the dimension (width) of the rib 114.
  • a sealing material 151 for covering the side surface of the outer rib 114b is formed on the outer peripheral surface side of the outer rib 114b.
  • the fixing material 150 is formed between the outer rib 114b and the inner rib 114a adjacent to the outer rib 114b. Specifically, the fixing material 150 is placed in a space formed by the adjacent outer ribs 114b and inner ribs 114a while being sandwiched between the vertically adjacent heat transfer plates 113, along the longitudinal direction of the ribs 114. It is formed by filling with a drug.
  • the fixing material 150 is preferably formed continuously rather than discontinuously in the longitudinal direction of the rib 114.
  • the fixing material 150 is preferably a chemical that exerts an adhesive force to the rib 114, and examples thereof include a vinyl acetate resin-based adhesive. Further, as the fixing material 150, a material having a lower hygroscopicity than the rib 114 (inner rib 114a) is selected. That is, the hygroscopicity of the fixing material 150 is smaller than the hygroscopicity of the rib 114 (inner rib 114a). However, not limited to these chemicals, known adhesives and bonding methods can be used depending on the material of the rib 114, and the effects do not differ. Further, depending on the manufacturing method, a curing method such as moisture curing, pressure curing, or UV curing can be selected.
  • a curing method such as moisture curing, pressure curing, or UV curing can be selected.
  • the sealing material 151 is formed so as to cover the outer peripheral side surface of the outer rib 114b. Specifically, the sealing material 151 is selectively formed so as to cover the outer peripheral side surface of the heat exchange element 106 with respect to the outer rib 114b which is sandwiched between the heat transfer plates 113 adjacent to the upper and lower sides and is in direct contact with the outer rib 114b. There is.
  • the sealing material 151 is formed by laminating a required number of heat exchange element pieces 115 to form a heat exchange element 106, and then coating the outer peripheral side surface of the outer rib 114b and curing the sealing material 151.
  • the sealing material 151 is preferably a chemical that exerts an adhesive force on the rib 114 (outer rib 114b), and examples thereof include a vinyl acetate resin-based adhesive. Further, as the sealing material 151, a material having a lower hygroscopicity than the rib 114 (inner rib 114a) is selected. That is, the hygroscopic property of the sealing material 151 is smaller than the hygroscopic property of the rib 114 (inner rib 114a). However, not limited to these chemicals, known adhesives and bonding methods can be used depending on the material of the rib 114, and the effects do not differ. Further, depending on the manufacturing method, a curing method such as moisture curing, pressure curing, or UV curing can be selected.
  • a curing method such as moisture curing, pressure curing, or UV curing can be selected.
  • the heat exchange element 106 has an outer rib 114b and an outer rib between the outer rib 114b and the inner rib 114a adjacent to the outer rib 114b at the end edge of the heat transfer plate 113.
  • a fixing material 150 for fixing the inner rib 114a adjacent to the 114b is formed.
  • the heat exchange element 106 firmly joins the fixing material 150 between the rib 114 (outer rib 114b and the inner rib 114a adjacent thereto) located at the end edge of the heat transfer plate 113 and the heat transfer plate 113.
  • the adhesive strength between the rib 114 and the heat transfer plate 113 at the end edge can be increased. Therefore, the heat exchange element 106 can suppress the peeling between the rib 114 located at the end side and the heat transfer plate 113, and can suppress the decrease in the ventilation volume.
  • the distance (spacing Lab) between the outer rib 114b and the inner rib 114a adjacent to the outer rib 114b is the distance (spacing Lab) between the inner ribs 114a adjacent to each other. It was formed to be narrower than Laa).
  • the heat exchange element 106 can be configured to have a small dimension (width) of the sealing rib including the outer rib 114b and the inner rib 114a adjacent thereto. That is, the heat exchange element 106 can secure the cross-sectional area of the air passage without increasing the size, and can increase the adhesive strength between the rib 114 and the heat transfer plate 113 at the end side.
  • the heat exchange element 106 in the heat exchange element 106 according to the first embodiment, a material having a lower hygroscopicity than the rib 114 (inner rib 114a) is applied to the fixing material 150.
  • the heat exchange element 106 when the temperature / humidity difference between the exhaust flow 103 and the supply airflow 104 is large, the dew condensation water generated on the heat transfer plate 113 diffuses through the inner rib 114a and spreads to the outer rib 114b. It can be suppressed from reaching. Therefore, the heat exchange element 106 can suppress the breakage of the adhesive member 141 that adheres the outer rib 114b and the heat transfer plate 113, which occurs when the outer rib 114b absorbs moisture and expands. Therefore, the heat exchange element 106 can further reduce the peeling that occurs between the rib 114 located at the end side and the heat transfer plate 113.
  • the heat exchange element 106 has a configuration in which a sealing material 151 that covers the outer peripheral surface side of the heat exchange element 106 is formed on the outer rib 114b.
  • the heat exchange element 106 can prevent the moisture (water vapor) in the air outside the heat exchange element 106 from reaching the outer rib 114b located inside the sealing material 151. Therefore, the heat exchange element 106 can suppress the breakage of the adhesive member 141 that fixes the outer rib 114b and the heat transfer plate 113, which occurs when the outer rib 114b absorbs moisture and expands. Therefore, the heat exchange element 106 can further reduce the peeling that occurs between the rib 114 located at the end side and the heat transfer plate 113.
  • the heat exchange element 106 has a configuration in which at least the outer rib 114b and the inner rib 114a adjacent thereto are fixed by the fixing material 150.
  • the adhesive strength between the rib 114 and the heat transfer plate 113 is compared with the case where one wide rib having a dimension (width) from the outer rib 114b to the inner rib 114a adjacent to the outer rib 114b is used. Can be enhanced.
  • the heat exchange type ventilator 102 equipped with the heat exchange element 106 according to the first embodiment can enjoy the effect of the heat exchange element 106 described above, and is reliable as the heat exchange type ventilator 102. Can be improved.
  • the heat exchange element 106 has a configuration in which the sealing material 151 is provided on the outer peripheral surface side of the outer rib 114b, but the sealing material 151 is not provided on the outer peripheral surface side of the outer rib 114b. Good. Also in this case, since the sealing rib is formed by the outer rib 114b, the inner rib 114a adjacent thereto, and the fixing material 150, the heat exchange element related to this deformation has at least an effect other than the above (4). Can be enjoyed.
  • the heat exchange element 106 has the outer rib 114b and the inner rib 114a having the same member and the same structure, but is not limited thereto.
  • a configuration in which the hygroscopicity of the outer rib 114b is made smaller than the hygroscopicity of the inner rib 114a can be considered. By doing so, the moisture (water vapor) in the air outside the heat exchange element related to the deformation is diffused through the outer rib related to the deformation and the fixing material 150, and the deformation is related to the deformation adjacent to the outer rib related to the deformation. Reaching the inner rib is suppressed.
  • the heat exchange element related to this deformation can further prevent the peeling that occurs between the ribs related to the deformation located at the end side and the heat transfer plate 113.
  • the heat exchange type ventilator 102 in the first embodiment is the “heat exchange type ventilator” according to the present disclosure
  • the exhaust flow 103 is the “exhaust flow” according to the present disclosure
  • the supply airflow 104 is the “exhaust flow” according to the present disclosure.
  • the "air supply airflow" and the heat exchange element 106 correspond to the "heat exchange element” according to the present disclosure.
  • the heat exchange element piece 115 corresponds to the "unit component” according to the present disclosure
  • the heat transfer plate 113 corresponds to the "partition member” according to the present disclosure.
  • the rib 114 corresponds to the "interval holding member” according to the present disclosure
  • the outer rib 114b corresponds to the "first interval holding member” according to the present disclosure
  • the inner rib 114a corresponds to the "second interval holding member” according to the present disclosure.
  • the exhaust air passage 116 is the “exhaust air passage” according to the present disclosure
  • the air supply air passage 117 is the “air supply air passage” according to the present disclosure
  • the fixing material 150 is the “fixing member” according to the present disclosure
  • the sealing material 151 is.
  • the sealing member corresponds to the "sealing member” according to the present disclosure.
  • the present disclosure describes heat exchange element cells, heat exchange elements, which are used in cold regions and the like, and exchange 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 a heat exchange type ventilation device using a heat exchange element.
  • FIG. 14 is an exploded perspective view showing the structure of the conventional heat exchange element 21.
  • the heat exchange element 21 is configured by laminating a large number of heat exchange element single units 22 composed of a 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 laminated adjacent to each other, forming 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.
  • the heat exchange element 21 In order to improve the heat exchange efficiency of the heat exchange element, it is generally necessary to exchange heat between the supply air flow and the exhaust flow for a long time, so it is considered to lengthen the air passage length of the air flow path 27. Be done.
  • the conventional heat exchange element 21 in order to lengthen the air passage length of the air flow path 27, it is necessary to increase the size of the heat exchange element 21, that is, the heat exchange element unit 22 constituting the heat exchange element 21. Larger size is required. If the size of the heat exchange element unit 22 is increased, it becomes easy to bend, so that it is difficult to accurately arrange the heat exchange element unit 22 on the heat exchange element unit 22 in the front layer, and the position shift is likely to occur during stacking.
  • heat using a heat exchange element cell, a heat exchange element, and a heat exchange element capable of improving the heat exchange efficiency by increasing the size of the heat exchange element while suppressing the misalignment during stacking. It is intended to provide a replaceable ventilator.
  • a unit constituent member including a rectangular 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.
  • 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 exchange heat through the partition member.
  • a magnetic material for connecting the heat exchange element cells to each other is formed at a ridge angle portion in the stacking direction of the unit constituent members.
  • the heat exchange element according to the present disclosure is composed of a plurality of heat exchange element cells, and the adjacent heat exchange element cells are connected by the magnetic force of the adjacent magnetic materials, and each of the exhaust air passage and the air supply air passage is connected. Is configured to communicate in series.
  • the heat exchange type ventilation device is characterized in that the above-mentioned heat exchange element is mounted.
  • the heat exchange element cell, the heat exchange element, and the heat exchange type ventilation device using the heat exchange element according to the present disclosure improve the heat exchange efficiency by increasing the size of the heat exchange element while suppressing the misalignment during stacking. be able to.
  • the heat exchange element cell according to the present disclosure is exhausted by laminating a unit constituent member including a rectangular partition member having heat transfer property and a plurality of interval holding members provided on one surface of the partition member.
  • 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.
  • a magnetic material for connecting the heat exchange element cells to each other is formed at a ridge angle portion in the stacking direction of the unit constituent members.
  • the heat exchange element cells according to the present disclosure form a heat exchange element composed of a plurality of heat exchange element cells by connecting and combining the heat exchange element cells with a magnetic material, misalignment during stacking is suppressed. At the same time, the heat exchange element can be easily increased in size. As a result, in the heat exchange element composed of the heat exchange element cell according to the present disclosure, the lengths of the exhaust air passage and the air supply air passage can be extended, so that the exhaust flow and the air supply air exchange heat through the partition member. You can increase the amount of time you spend. Therefore, the heat exchange element cell according to the present disclosure can improve the heat exchange efficiency of the heat exchange element. That is, the heat exchange element cell according to the present disclosure can improve the heat exchange efficiency by increasing the size of the heat exchange element while suppressing the positional deviation during stacking.
  • the partition member may have a substantially square shape.
  • the lengths of the exhaust air passage and the air supply air passage can be made the same, so that the wind speeds of the exhaust flow and the air supply airflow can be made uniform. Therefore, in the heat exchange element cell according to the present disclosure, the gradient of the heat exchange time caused by the deviation of the wind speed is suppressed, and the heat exchange efficiency when the heat exchange element is configured can be improved.
  • the magnetic material extends to the ridge angle portion along the stacking direction of the unit constituent members.
  • the heat exchange element cells according to the present disclosure can more reliably connect the heat exchange element cells with each other by the magnetic material. Therefore, when a plurality of heat exchange element cells are connected to form the heat exchange element, they are adjacent to each other. The gap between the heat exchange element cells can be further reduced. Therefore, since the decrease in the ventilation volume of the exhaust flow and the supply airflow of the heat exchange element cell according to the present disclosure is suppressed, the heat exchange element cell according to the present disclosure improves the heat exchange efficiency when the heat exchange element is configured. Can be made to.
  • the magnetic material is formed so as to be flush with the outer peripheral side surface of the heat exchange element cell.
  • the gap between the unit constituent members of the adjacent heat exchange element cells can be made smaller. it can. Therefore, since the decrease in the ventilation volume of the exhaust flow and the supply airflow of the heat exchange element cell according to the present disclosure is further suppressed, the heat exchange element cell according to the present disclosure has a heat exchange efficiency when the heat exchange element is configured. It can be further improved.
  • the magnetic material may be configured such that the peak portion of the ridge angle portion is removed and the removed portion complements the removed peak portion.
  • the heat exchange element according to the present disclosure is composed of a plurality of heat exchange element cells, and the adjacent heat exchange element cells are connected by the magnetic force of the adjacent magnetic materials, and each of the exhaust air passage and the air supply air passage is connected. Are configured to communicate in series.
  • the heat exchange element according to the present disclosure can realize an increase in size of the heat exchange element while suppressing misalignment during stacking, as compared with the case where the heat exchange element alone is increased in size.
  • the heat exchange element according to the present disclosure may be configured by connecting heat exchange element cells in N rows and N columns (N: a positive integer of 2 or more). As a result, the heat exchange element according to the present disclosure has an improved degree of freedom in design when the heat exchange element is enlarged.
  • the heat exchange type ventilation device is configured by mounting the above-mentioned heat exchange element.
  • the heat exchange type ventilator according to the present disclosure is equipped with the above-mentioned heat exchange element, the heat exchange efficiency can be improved.
  • FIG. 7 is a schematic view showing an installation example of the heat exchange type ventilation device 202 in a house.
  • FIG. 8 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 while exchanging heat between indoor air and outdoor air.
  • 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 air supply airflow 204 is taken into the room via the heat exchange type ventilator 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 ventilator 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 ventilator 202.
  • a heat exchange element 206, an exhaust fan 207, and an air supply fan 210 are mounted inside the main body case 205.
  • 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 supply 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. 9 is a perspective view showing the structure of the heat exchange element 206.
  • FIG. 10 is a perspective view showing the structure of the heat exchange element cell 206a.
  • FIG. 11 is an exploded perspective view showing an example of assembling a plurality of heat exchange element cells 206a constituting the heat exchange element 206.
  • FIG. 12 is a plan view showing the structure of the heat exchange element 206.
  • the heat exchange element 206 is configured by connecting a plurality of heat exchange element cells 206a.
  • the heat exchange element 206 is configured by connecting four heat exchange element cells 206a in two rows and two columns in a plane. Further, as will be described in detail later, when the heat exchange element cells 206a are connected, the exhaust air passage 216 and the air supply air passage 217 are configured to communicate with each other in series.
  • Each of the plurality of heat exchange element cells 206a has a configuration for connecting to another heat exchange element cell 206a (details will be described later) and a configuration corresponding to a conventional heat exchange element.
  • the heat exchange element cell 206a is composed of a plurality of heat exchange element pieces 215 as shown in FIG.
  • a plurality of ribs 214 are adhered to each heat exchange element piece 215 on one surface of a heat transfer plate 213 having a substantially rectangular shape (in the second embodiment, a substantially square shape as an example).
  • the heat exchange element cell 206a 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.
  • the exhaust air passage 216 through which the exhaust flow 203 is ventilated and the air supply air passage 217 through which the air supply airflow 204 is ventilated are alternately formed layer by layer, and the exhaust flow 203 is formed. And the airflow 204 alternately flow at right angles.
  • the heat exchange element cell 206a enables heat exchange between the exhaust flow 203 and the supply airflow 204 via the heat transfer plate 213.
  • the heat exchange element piece 215 is one unit constituting the heat exchange element cell 206a. 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 to the other end side facing the rib 214. Each of the plurality of 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.
  • a rib is formed on one surface of the heat transfer plate 213 constituting one of the heat exchange element pieces 215.
  • the rib 214 is formed by adhesion so that the longitudinal direction of the 214 is directed from the end side 213a of the heat transfer plate 213 to the opposite end side 213c.
  • the longitudinal direction of the rib 214 is the end side of the heat transfer plate 213 constituting the one heat exchange element piece 215. It is formed by adhesion so as to go from the 213b (end side substantially orthogonal to the end side 213a) side to the opposite end side 213d side.
  • the heat transfer plate 213 is a plate-shaped member for exchanging heat when the exhaust flow 203 and the supply air flow 204 flow across the heat transfer plate 213.
  • the heat transfer plate 213 is formed of heat transfer paper based on cellulose fibers, and has heat transfer property, moisture permeability, and hygroscopic property.
  • the material of the heat transfer plate 213 is not limited to this.
  • the heat transfer plate 213 is a thin sheet having heat transfer properties, and a sheet having a property of not allowing gas to permeate can be used.
  • the plurality of ribs 214 are provided between the 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 has a substantially cylindrical shape 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. It is a member of.
  • a member having a shape such as a substantially flat shape, a substantially rectangular shape, or a hexagonal shape may be used in addition to the substantially circular shape.
  • each of the plurality of ribs 214 has a substantially circular cross section.
  • the rib 214 is composed of a plurality of fiber members (not shown) and is fixed to each other with the heat transfer plate 213. Further, for the adhesion between the rib 214 and the heat transfer plate 213, a known adhesive or bonding method can be used depending on the material of the rib 214, such as application of an adhesive, attachment of a sealing material, heat welding, etc. There is no difference.
  • Each of the fiber members has a substantially circular cross section and extends in the same direction as the rib 214.
  • the material of the fiber member it is sufficient that it has hygroscopicity and has a certain strength.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a cellulose fiber, ceramic fiber, or glass fiber is used as a base. Paper materials, cotton, silk and linen can be used.
  • magnetic bodies 281 for connecting the heat exchange element cells 206a are formed at four positions of the ridge angle portions 280 in the stacking direction of the heat exchange element pieces 215. Specifically, as shown in FIG. 10, the magnetic material 281 is located at the ridge angle portion 280 from the lowest position to the uppermost position of the heat exchange element piece 215 along the stacking direction of the heat exchange element piece 215. It extends to the position. Of the four ridge angle portions 280, bar magnets 281a are formed as magnetic bodies 281 on the pair of ridge angle portions 280a located diagonally of the heat exchange element cell 206a (heat exchange element piece 215).
  • a bar magnet 281b is formed as a magnetic body 281 on each of the pair of ridge angle portions 280b located on the other diagonal of the ridge angle portions 280.
  • the bar magnet 281a and the bar magnet 281b have different polarities (N pole or S pole), and can be attracted by their respective magnetic forces.
  • the magnetic body 281 is formed so that the peak portions of the four ridge corner portions 280 are removed, and the removed portions complement the removed peak portions. At this time, the magnetic body 281 is formed so as to be flush with the outer peripheral side surface of the heat exchange element cell 206a.
  • the cross-sectional shape of the magnetic body 281 is square, and the magnetic body 281 and the heat exchange element cell 206a are fixed to each other.
  • the heat exchange element cell 206a and the magnetic body 281 are fixed to each other by applying an adhesive, attaching a sealing material, heat welding, etc., to the heat transfer plate 213, the rib 214, and the magnetic body 281 constituting the heat exchange element cell 206a.
  • a known adhesive and bonding method can be used depending on the material of the above, and there is no difference in the effect.
  • the material of the magnetic material 281 may be magnetic, and for example, a metal such as iron, nickel, cobalt, or neodymium, or an alloy thereof or a metal compound such as ferrite can be used.
  • the heat exchange element cell 206a according to the second embodiment is configured.
  • the bar magnet 281a and the bar magnet 281b are attracted by the magnetic force acting on each other, and the two heat exchange element cells 206a are connected. Further, in the other ridge angle portion 280 of the heat exchange element cell 206a, the magnetic bodies 281 (bar magnet 281a and the bar magnet 281b adjacent thereto) are similarly attracted to each other.
  • the heat exchange element 206 is configured such that the exhaust air passage 216 and the supply air air passage 217 communicate with each other in series. At this time, the heat exchange element 206 is formed with a small gap between the adjacent heat exchange element cells 206a at the connecting portion between the adjacent heat exchange element cells 206a.
  • the heat exchange element 206 including the plurality of heat exchange element cells 206a according to the second embodiment is configured.
  • the heat exchange element cell 206a As described above, according to the heat exchange element cell 206a according to the second embodiment, the heat exchange element 206 having a plurality of the heat exchange element cells 206a, or the heat exchange type ventilation device 202 using the heat exchange element 206, the following You can enjoy the effect.
  • the heat exchange element cell 206a is formed by stacking the heat exchange element pieces 215 so as to alternately form the exhaust air passage 216 and the air supply air passage 217 one layer at a time, and is formed in the stacking direction of the heat exchange element pieces 215.
  • a magnetic body 281 for connecting the heat exchange element cells to each other is formed in each of the ridge angle portions 280.
  • the heat exchange element cell 206a is formed by connecting and combining a plurality of heat exchange element cells 206a by the magnetic body 281 to form the heat exchange element 206, thereby suppressing the misalignment at the time of stacking.
  • the heat exchange element 206 can be easily increased in size.
  • the heat exchange element 206 can extend the air passage lengths of the exhaust air passage 216 and the air supply air passage 217, so that the time required for the exhaust flow 203 and the air supply air 204 to exchange heat via the heat transfer plate 213 is increased. Can be increased. Therefore, in the heat exchange element cell 206a, the heat exchange element 206 can be made larger than the conventional heat exchange element, and the heat exchange efficiency can be improved.
  • the heat transfer plate 213 has a substantially square shape.
  • the heat exchange element cell 206a becomes substantially square when viewed in a plan view from above. That is, since the heat exchange element cell 206a can have the same air passage lengths of the exhaust air passage 216 and the air supply air passage 217, the wind speeds of the exhaust flow 203 and the air supply air flow 204 can be made uniform. Therefore, since the heat exchange element cell 206a can suppress the gradient of the heat exchange time caused by the deviation of the wind speed, the heat exchange efficiency when the heat exchange element 206 is configured can be improved.
  • the heat exchange element cell 206a is formed by extending the magnetic body 281 along the ridge angle portion 280 along the stacking direction of the heat exchange element pieces 215. As a result, the heat exchange element cell 206a can more reliably connect the heat exchange element cells 206a with each other by the magnetic body 281. Therefore, when the heat exchange element cell 206a is formed by connecting the plurality of heat exchange element cells 206a to form the heat exchange element 206, the gap between the adjacent heat exchange element cells 206a can be further reduced. Therefore, since the decrease in the ventilation volume of the exhaust flow 203 and the supply airflow 204 of the heat exchange element cell 206a is suppressed, the heat exchange element cell 206a can improve the heat exchange efficiency when the heat exchange element 206 is configured. it can.
  • the heat exchange element cell 206a is formed so that the magnetic body 281 is flush with the outer peripheral side surface of the heat exchange element cell 206a.
  • the heat exchange element cell 206a is formed by connecting a plurality of heat exchange element cells 206a to form the heat exchange element 206, the gap between the heat exchange element pieces 215 of the adjacent heat exchange element cells 206a is surely reduced. can do. Therefore, since the decrease in the ventilation volume of the exhaust flow 203 and the supply airflow 204 of the heat exchange element cell 206a is further suppressed, the heat exchange element cell 206a improves the heat exchange efficiency when the heat exchange element 206 is configured. Can be done.
  • the heat exchange element cell 206a is formed by removing the peak portion of the ridge angle portion 280 and complementing the removed peak portion with the removed portion of the magnetic body 281. As a result, the heat exchange element cell 206a is formed by connecting a plurality of heat exchange element cells 206a to form the heat exchange element 206, as compared with the case where the magnetic body 281 is formed without removing the peak portion of the ridge angle portion 280. , The gap between adjacent heat exchange element cells 206a can be made smaller.
  • the heat exchange element 206 is composed of a plurality of heat exchange element cells 206a, and the adjacent heat exchange element cells 206a are connected to each other by the magnetic force of the adjacent magnetic bodies 281 to form an exhaust air passage 216 and an air supply air passage.
  • Each of the 217s was configured to communicate in series.
  • the lengths of the exhaust air passages 216 and the air supply air passages 217 when heat is exchanged via the heat transfer plate 213 become long, so that the heat exchange element 206 is placed between the exhaust flow 203 and the air supply airflow 204.
  • the time for heat exchange can be increased. Therefore, the heat exchange element 206 can improve the heat exchange efficiency as compared with the conventional heat exchange element.
  • the heat exchange element 206 is configured by connecting the heat exchange element cells 206a in 2 rows and 2 columns. Since a plurality of heat exchange element cells 206a are connected to form the heat exchange element 206, the heat exchange element 206 can be easily increased in size as compared with the case where the heat exchange element alone is increased in size. Further, the heat exchange element 206 can improve the degree of freedom in design when the size is increased.
  • the heat exchange type ventilation device 202 is configured by mounting the above-mentioned heat exchange element 206. As a result, since the heat exchange type ventilation device 202 is equipped with the above-mentioned heat exchange element 206, the heat exchange efficiency can be improved.
  • the heat exchange element 206 is configured by connecting the heat exchange element cells 206a in two rows and two columns, but the present invention is not limited to this.
  • the configuration to be used is conceivable.
  • a configuration is conceivable in which the heat exchange element cells 206a are connected by N rows and N columns (N: a positive integer of 2 or more). By doing so, the heat exchange element related to this deformation can improve the degree of freedom in design when the size is increased.
  • the peak portion of the ridge angle portion 280 of the heat exchange element cell 206a is cut to form the magnetic body 281. Not limited to this.
  • the method for forming the magnetic body 281 for example, before laminating the heat exchange element pieces 215, each heat exchange element piece 215 whose peak portion is punched is laminated, and the laminated punched portion.
  • a method of forming the magnetic material 281 can be considered.
  • the cross-sectional shape of the magnetic body 281 is substantially square, and the peak portion of the ridge angle portion 280 of the heat exchange element cell 206a is cut according to the shape of the magnetic body 281.
  • the cross-sectional shape of the magnetic material according to the modified example is, for example, a triangle or a bracket shape, and the ridge portion of the ridge angle portion 280 of the heat exchange element cell related to the deformation is cut according to the shape of the magnetic material related to the deformation. You may do so.
  • the heat exchange element cell related to deformation can improve the degree of freedom in design when forming the magnetic material related to deformation at the ridge angle portion 280.
  • the heat transfer plate 213 portion cut to form the deformed magnetic body is compared with the substantially square magnetic body 281 having the same outer diameter. Is reduced. Therefore, the heat exchange element cell related to this deformation can secure a wide effective heat transfer area (area of the heat transfer plate 213 capable of heat exchange), and is more suitable for improving the heat exchange efficiency.
  • the peak portion of the ridge angle portion 280 of the heat exchange element cell 206a is cut according to the shape of the magnetic body 281, but the present invention is not limited to this.
  • the magnetic body 281 may be configured as in the heat exchange element cell 206b according to the modification shown in FIG.
  • FIG. 13 is a plan view showing the structure of the heat exchange element 206 in which the heat exchange element cells 206b according to the modified example are connected.
  • the heat exchange element cell 206b has a structure in which a columnar bar magnet 281c and a bar magnet 281d are inserted as magnetic bodies 281 into the through holes thereof.
  • the bar magnet 281c and the bar magnet 281d have different polarities (N pole or S pole), and can be attracted by their respective magnetic forces.
  • the heat exchange element cell 206b can easily increase the size of the heat exchange element 206.
  • the rib 214 is composed of a plurality of fiber members, but the present invention is not limited to this.
  • the rib 214 is deformed so as to be composed of hot melt resin, thick paper, or the like.
  • the heat exchange element cell 206a according to the second embodiment is provided with magnetic materials 281 at each of the ridge corners 280 at the four corners, but the present invention is not limited to this.
  • a configuration in which the magnetic material 281 is provided only at the connecting portion to which the heat exchange element cell 206a is connected can be considered.
  • the heat exchange element cell related to this deformation secures an effective heat transfer area (area of the heat exchangeable heat transfer plate 213) lost by providing the magnetic body 281 at the ridge angle portion 280 in which the magnetic body 281 is not provided. It is possible to improve the heat exchange efficiency.
  • the heat exchange element cell 206a of the second embodiment is the "heat exchange element cell” according to the present disclosure
  • the heat exchange element 206 is the “heat exchange element” according to the present disclosure
  • the heat exchange type ventilation device. 202 corresponds to the "heat exchange type ventilation device” according to the present disclosure.
  • the heat transfer plate 213 corresponds to the "partition member” according to the present disclosure
  • the rib 214 corresponds to the "interval holding member” according to the present disclosure
  • the heat exchange element piece 215 corresponds to the "unit constituent member” according to the present disclosure.
  • the exhaust air passage 216 corresponds to the "exhaust air passage” according to the present disclosure
  • the air supply air passage 217 corresponds to the "supply air air passage” according to the present disclosure
  • the exhaust flow 203 corresponds to the “exhaust flow” according to the present disclosure
  • the supply airflow 204 corresponds to the “supply airflow” according to the present disclosure
  • the ridge angle portion 280 (ridge angle portion 280a, ridge angle portion 280b) is the “ridge angle portion” according to the present disclosure
  • the magnetic body 281 (bar magnet 281a, bar magnet 281b, bar magnet 281c, bar magnet 281d) is the "bar magnet 281d” according to the present disclosure. Corresponds to "magnetic material”.
  • the heat exchange element cell according to the second embodiment including the modification is useful as a heat exchange element cell constituting the heat exchange element used in the heat exchange type ventilation device and the like.
  • the present disclosure is used in a cold region or the like, and is a heat exchange element that 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. 20 is an exploded perspective view showing the structure of the conventional heat exchange element 31.
  • the 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 made 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 form 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.
  • the conventional heat exchange element 31 forms the rib 34 in which the paper string 35 having a substantially circular cross section is covered with the hot melt resin 36, and the formed rib 34 is adhered to the functional paper 33 by the hot melt resin 36.
  • the distance between the functional papers 33 is maintained. Therefore, the functional paper 33 and the paper string 35 absorb moisture in the air and their dimensions change, and in particular, the rib 34 and the functional paper change due to the dimensional change of the paper string 35 wrapped with the hot melt resin 36.
  • the adhesive portion of 33 may be peeled off. As a result, the strength required to maintain the distance between the functional papers 33 is lost, the air passage is crushed, the air flowing through the heat exchange element 31 is biased, and the heat exchange efficiency is lowered.
  • the adhesion between the interval holding member (for example, the rib 34 described above) and the partition member (for example, the functional paper 33 described above) is peeled off due to a dimensional change due to moisture absorption, causing blockage of the air passage. There is a problem that the heat exchange efficiency is lowered.
  • the present disclosure describes a heat exchange element capable of suppressing blockage of the air passage due to adhesive peeling between the interval holding member and the partition member caused by a dimensional change of the interval holding member due to moisture absorption, and heat using the same. It is an object of the present invention to provide a replaceable ventilation system.
  • an exhaust air passage and an air supply air passage 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.
  • a heat exchange element in which the exhaust flow flowing through the exhaust air passage and the air supply air flowing through the air supply air passage exchange heat with each other via a partition member.
  • the interval holding member and the partition member are fixed to each other by an adhesive member.
  • the space-holding member is formed by spirally twisting a plurality of fiber bundles while rotating them in the first direction with the direction in which the exhaust flow or the air supply flow flows as an axis.
  • Each of the plurality of fiber bundles is formed by twisting the plurality of fibers in a spiral shape while rotating the plurality of fibers in the second direction opposite to the first direction.
  • heat exchange type ventilation device is configured to be equipped with the above-mentioned heat exchange element.
  • the heat exchange element and the heat exchange type ventilation device using the heat exchange element according to the present disclosure suppress the blockage of the air passage due to the peeling of the adhesive between the space holding member and the partition member caused by the dimensional change of the space holding member due to moisture absorption. be able to.
  • 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. 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. Then, the interval holding member and the partition member are fixed to each other by an adhesive member.
  • the space-holding member is formed by spirally twisting a plurality of fiber bundles while rotating them in the first direction with the direction in which the exhaust flow or the air supply flow flows as an axis. Each of the plurality of fiber bundles is formed by twisting the plurality of fibers in a spiral shape while rotating the plurality of fibers in the second direction opposite to the first direction.
  • the heat exchange element according to the present disclosure in the heat exchange element according to the present disclosure, the direction in which the plurality of fiber bundles are twisted and the direction in which the plurality of fibers constituting the fiber bundle are twisted are opposite to each other.
  • the untwisting force (force for untwisting) of the space-holding member constructed as assembled is relaxed.
  • the dimensional change (deformation) of the interval holding member due to moisture absorption is suppressed, so that the heat exchange element according to the present disclosure can suppress the blockage of the air passage due to the adhesive peeling of the partition member and the interval holding member. Therefore, the heat exchange element according to the present disclosure can maintain high heat exchange efficiency by eliminating the bias of the air flowing through the heat exchange element and blowing air in the air passage of the heat exchange element at a uniform wind speed and pressure. it can.
  • the fiber bundle has a single-twisted structure in which a plurality of untwisted fibers are combined and twisted in the second direction
  • the spacing member is a single-twisted fiber. It has a multi-twisted structure in which a plurality of bundles are combined and twisted in the first direction.
  • the adhesive member invades the inside of the interval holding member.
  • the fiber bundles adjacent to each other are fixed to each other inside the spacing member by the adhesive member, so that the spacing member of the heat exchange element according to the present disclosure can more firmly suppress the dimensional change (deformation) due to moisture absorption.
  • the 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 can enjoy the effect of the heat exchange element described above, and according to the present disclosure, the reliability as the heat exchange type ventilator is improved.
  • FIG. 15 is a schematic view showing an installation example of a heat exchange type ventilator 302 provided with a heat exchange element 306 in a house.
  • FIG. 16 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 ventilation device 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 ventilator 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.
  • 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 ventilator 302
  • a heat exchange element 306, an exhaust fan 307, and an air supply fan 310 are mounted inside the main body case 305.
  • 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. 17 is an exploded perspective view showing the structure of the heat exchange element 306.
  • FIG. 18 is a perspective view of the heat exchange element piece 315 constituting the heat exchange element 306.
  • 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.
  • the exhaust air passage 316 through which the exhaust flow 303 ventilates and the air supply air passage 317 through which the air supply air flow 304 ventilates are alternately formed layer by layer with the exhaust flow 303.
  • the air supply 304 and the air flow 304 alternately flow at right angles to each other.
  • the heat exchange element 306 enables heat exchange between the exhaust flow 303 and the supply airflow 304 via the heat transfer plate 313.
  • 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 ribs 314 is arranged in parallel on the surface of the heat transfer plate 313 at predetermined intervals. Specifically, as shown in FIG. 17, of the two heat exchange element pieces 315 adjacent to the top and bottom, the rib 314 is placed on one surface of the heat transfer plate 313 constituting one of the heat exchange element pieces 315.
  • the rib 314 is formed by adhesion so that the longitudinal direction of the heat transfer plate 313 is directed from the end side 313a of the heat transfer plate 313 to 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 the end side 313b of the heat transfer plate 313 constituting the one heat exchange element piece 315.
  • the rib 314 is formed by adhesion so as to go from the (end side substantially orthogonal to the end side 313a) side to the opposite end side 313d side.
  • 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 heat transfer plate 313 is not limited to this.
  • the heat transfer plate 313 is a thin sheet having heat transfer properties, and a sheet 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 is a member 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. ..
  • each of the plurality of ribs 314 has a substantially circular cross section as shown in FIG.
  • the rib 314 is composed of a fiber member obtained by twisting a plurality of fiber bundles 340, and is fixed on the heat transfer plate 313 by an adhesive member 341.
  • the rib 314 has an adhesive member 341 on the surface layer, and is configured by impregnating each minute gap of the fiber member (fiber bundle 340) with the adhesive member 341.
  • a member having a shape such as a substantially flat shape, a substantially rectangular shape, or a hexagonal shape may be used in addition to the substantially circular shape.
  • the fiber member (fiber bundle 340) constituting the rib 314 is impregnated with the adhesive member 341, and then the rib 314 is arranged on one surface of the heat transfer plate 313. Then, it may be carried out by heat welding of the adhesive member 341.
  • the rib 314 and the heat transfer plate 313 are fixed by coating the adhesive member 341 on the portion to be the adhesive surface of the rib 314 and arranging the rib 314 on one surface of the heat transfer plate 313 for heat welding. You may. In this case, impregnation of the fiber member (fiber bundle 340) constituting the rib 314 and heat welding with the heat transfer plate 313 are performed at the same time.
  • FIG. 19 is a diagram showing the structure of the rib 314. More specifically, FIG. 19A is a perspective view of the rib 314. FIG. 19B is a plan view of the rib 314 of FIG. 19A as viewed from the A side.
  • FIG. 19C is a perspective view of the fiber bundle 340 constituting the rib 314 in a linearly extended state.
  • FIG. 19D is a plan view of the fiber bundle 340 of FIG. 19C as viewed from the B side.
  • the arrow on the axis X in FIG. 19 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 flow 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.
  • each of the plurality of ribs 314 is composed of a fiber member in which a plurality of fiber bundles 340 are twisted together.
  • the rib 314 has an adhesive member 341 on the surface layer, and is configured by impregnating each minute gap of the fiber member (fiber bundle 340) with the adhesive member 341.
  • the adhesive member 341 is impregnated up to the central portion of the rib 314 (a minute gap of the fiber bundle 340 located at the center of the rib 314). That is, in the heat exchange element 306, the adhesive member 341 invades the inside of the rib 314.
  • the rib 314 is from the upstream side to the downstream side of the exhaust flow 303 or the air supply 304 when the direction in which the exhaust flow 303 or the air flow 304 flows is the axis X. Looking at the side, it is configured as follows. That is, the rib 314 is configured by spirally twisting an aggregate of a plurality of fiber bundles 340 (7 in FIG. 19 as an example) while rotating them in the first twisting direction R1. In this example, the first twist direction R1 is a counterclockwise direction. That is, as shown in FIG. 19B, the rib 314 is configured by twisting a plurality of fiber bundles 340 in the direction of S twist (left twist).
  • each of the plurality of fiber bundles 340 is configured as follows in a state where the fiber bundles 340 twisted when forming the rib 314 are linearly stretched. There is. That is, each of the plurality of fiber bundles 340 is formed by spirally twisting an aggregate of the plurality of fibers 340a while rotating them in the second twisting direction R2, which is the direction opposite to the first twisting direction R1. There is. In this example, the second twist direction R2 is a clockwise direction. That is, as shown in FIG. 19D, the fiber bundle 340 is configured by twisting a plurality of fibers 340a in the Z twist (right twist) direction.
  • each of the plurality of fibers 340a is a member made of untwisted fibers (a member of untwisted single fibers) in a state where the fibers 340a are linearly stretched.
  • the material of the single fiber member it is sufficient that it has moisture absorption and has a certain strength when the rib 314 is formed.
  • a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or polyamide, or a cellulose fiber, Paper materials based on ceramic fibers and glass fibers, cotton, silk, and linen can be used.
  • the metal when a metal is used for the single fiber member, the metal itself does not have hygroscopicity, but in the aggregate of the single fiber member, water is absorbed due to the capillary phenomenon of retaining moisture in the air in the voids of the single fiber member. Since the action occurs, it is possible to impart a water absorbing function to the single fiber member. As the number of single fiber members increases, the hygroscopicity increases, but the strength of the single fiber members also increases, so that air passage obstruction is less likely to occur, which is preferable.
  • the fiber bundle 340 has a one-sided twist structure in which a plurality of untwisted single fiber fibers 340a are combined and twisted in the second twist direction R2. It is composed of. Further, the rib 314 is configured to have a multi-twisted structure in which a plurality of fiber bundles 340 having such a single-twisted structure are combined and twisted in the first twisting direction R1.
  • the humidity of the supply airflow 304 is lower than that of the exhaust flow 303. Therefore, when the water vapor in the air on the exhaust flow 303 passes through the exhaust air passage 316, it adheres to the rib 314 forming the exhaust air passage 316, and the fiber member (fiber bundle 340) absorbs the water vapor and the fiber member (fiber member (fiber bundle 340). The fiber bundle 340) expands in the longitudinal direction and the fiber radial direction. Similarly, since water vapor in the air is absorbed by the heat transfer plate 313 through which the exhaust flow 303 flows, the heat transfer plate 313 also undergoes a dimensional change due to expansion.
  • the heat transfer plate 313 and the rib 314 have different hygroscopicity
  • the member with the lower hygroscopicity is pulled by the dimensional change due to the expansion of the higher hygroscopic plate, so that the heat transfer plate 313 and the rib through which the exhaust flow 303 flows flow.
  • the bonding points of 314 are weakened and peeling occurs. Due to the separation between the heat transfer plate 313 through which the exhaust flow 303 flows and the rib 314, the pressure of the supply airflow 304 flowing under the heat transfer plate 313 through which the exhaust flow 303 flows is applied in FIG. 17, and the exhaust flow 303
  • the heat transfer plate 313 is bent and the exhaust air passage 316 is blocked. When the exhaust air passage 316 is partially blocked, the air volume is partially reduced, and the exhaust flow 303 flows with an uneven air volume balance with respect to the heat transfer plate 313. Therefore, the heat exchange efficiency of the heat exchange element 306 Decreases.
  • the rib 314 is formed by spirally twisting a plurality of fiber bundles 340 while rotating them in the first twisting direction R1. Further, each of the plurality of fiber bundles 340 is configured by spirally twisting the plurality of fibers 340a while rotating them in the second twisting direction R2. That is, in the rib 314, the twisting direction of the plurality of fiber bundles 340 (first twisting direction R1) and the twisting direction of the plurality of fibers 340a constituting the fiber bundle 340 (second twisting direction R2) are opposite to each other. It is configured as follows.
  • the untwisting force (force to untwist) of the fiber bundle 340 formed by twisting is suppressed by the untwisting force of the fiber 340a formed by twisting in the opposite direction, so that the untwisting force of the rib 314 as a whole is suppressed. It will be relaxed. That is, since the dimensional change (deformation) of the rib 314 due to the absorption of moisture in the air of the exhaust flow 303 is suppressed, the rib 314 has the rib 314 and the heat transfer plate as compared with the conventional rib (paper string 35). It is possible to suppress the blockage of the air passage due to the adhesive peeling of 313.
  • the ribs are configured. And.
  • the untwisting force of the fiber bundle formed by twisting is increased by the untwisting force of the fibers formed by twisting in the same direction, the untwisting force of the rib as a whole also increases. Therefore, as compared with the conventional rib (paper string 35), this rib has a large dimensional change (deformation) due to the absorption of moisture in the air of the exhaust flow 303, causing blockage of the air passage and improving heat exchange efficiency. It will decrease.
  • the heat exchange element 306 can suppress the blockage of the exhaust air passage 316, so that the bias of the air flowing through the heat exchange element 306 is eliminated and the wind speed is uniform in the exhaust air passage 316 of the heat exchange element 306.
  • the heat exchange efficiency can be maintained high by blowing air with wind pressure.
  • the humidity of the exhaust flow 303 is lower than that of the supply airflow 304. Therefore, when the water vapor in the air on the air supply 304 passes through the air supply air passage 317, it adheres to the rib 314 forming the air supply air passage 317, and the fiber member (fiber bundle 340) absorbs the water vapor and the fiber member (fiber member (fiber bundle 340). The fiber bundle 340) expands in the longitudinal direction and the fiber radial direction. Similarly, since the water vapor in the air is absorbed by the heat transfer plate 313 through which the air supply 304 flows, the heat transfer plate 313 also undergoes a dimensional change due to expansion.
  • the heat transfer plate 313 and the rib 314 have different hygroscopicity
  • the heat transfer plate 313 and the rib through which the air supply 304 flows are pulled by the member having the lower hygroscopicity due to the dimensional change due to the expansion of the higher hygroscopicity.
  • the bonding points of 314 are weakened and peeling occurs. Due to the separation between the heat transfer plate 313 through which the air supply 304 flows and the rib 314, the pressure of the exhaust flow 303 flowing under the heat transfer plate 313 through which the air supply 304 flows is applied in FIG.
  • the heat transfer plate 313 is bent and the air supply air passage 317 is blocked.
  • the heat exchange efficiency of the heat exchange element 306 Decreases.
  • the heat exchange element 306 according to the third embodiment even in this case, the same effect as described in the example of winter in Japan can be enjoyed.
  • the rib 314 is impregnated with the adhesive member 341.
  • the adhesive force of each of the plurality of fiber bundles 340 is increased, and the dimensional change of the rib 314 is suppressed.
  • the adhesive member 341 is impregnated up to the center of the rib 314, the dimensional change of the rib 314 is suppressed more firmly.
  • the adhesive member 341 adheres the rib 314 and the heat transfer plate 313, the adhesive area between the heat transfer plate 313 and the rib 314 is increased, and the adhesive force between the heat transfer plate 313 and the rib 314 is increased. There is.
  • a rib 314 formed by spirally twisting a plurality of fiber bundles 340 while rotating them in the first twisting direction R1 was used. Therefore, the ribs 314 adjacent to each other are arranged in the same twisting direction to be rotated.
  • the exhaust flow 303 (or the air flow 304) flowing through the exhaust air passage 316 (or the air supply air passage 317) is aligned with the surface of the fiber bundle 340 in the exhaust air passage 316 (or in the air supply air passage 317).
  • the exhaust flow 303 (or the supply air flow 304) becomes a swirling flow when the air flow is distributed to the air.
  • the heat exchange element 306 can improve the heat exchange efficiency as compared with the conventional heat exchange element.
  • the heat exchange type ventilator 302 equipped with the heat exchange element 306 according to the third embodiment can enjoy the effect of the heat exchange element 306 described above, and improves the reliability as the heat exchange type ventilator. Can be made to.
  • the heat exchange element 306 uses a fiber bundle 340 in which a plurality of fibers 340a are twisted in a Z twist (right twist) direction, and a rib 314 in which the plurality of fiber bundles 340 are S.
  • the one twisted in the direction of twisting (left twisting) was used, but the present invention is not limited to this.
  • the heat exchange element involved in deformation uses a fiber bundle 340 in which a plurality of fibers 340a are twisted in an S-twisted (left-handed) direction, and a rib 314 in which a plurality of fiber bundles 340 are Z-twisted (right). You may use the one twisted in the direction of (twist).
  • the heat exchange element 306 has a rib 314 having a multi-twist structure (Z-twist ⁇ S-twist) in which a plurality of fiber bundles 340 having a single-twist structure (Z-twist) are combined and twisted.
  • a rib 314 having a triple twist structure (Z twist ⁇ S twist ⁇ Z twist) in which the twist directions are different from each other may be used.
  • the degree of freedom in designing the rib 314 made of the fiber member (fiber bundle 340) is improved.
  • the heat exchange element 306 according to the third embodiment is configured to impregnate the inside of the rib 314 with the adhesive member 341, but the present invention is not limited to this.
  • the adhesive member 341 may be provided only on the portion of the rib 314 that becomes the adhesive surface with the heat transfer plate 313.
  • a material different from that of the adhesive member impregnating the inside of the rib 314 and the adhesive member covering (encapsulating) the surface of the rib 314 may be used. As a result, the degree of freedom in designing the adhesive member 341 is improved.
  • the adhesive member 341 of the heat exchange element 306 according to the third embodiment may be deformed so as to use one having a lower hygroscopicity than the rib 314.
  • the adhesive member related to this deformation even if the rib 314 absorbs moisture and the fiber member (fiber bundle 340) tries to change its size due to expansion, the adhesive member related to this deformation, which has lower hygroscopicity than the rib 314, is fixed. Therefore, the dimensional change of the rib 314 can be suppressed.
  • the adhesive member having lower hygroscopicity than the rib 314 and related to this deformation is based on, for example, a solution-based adhesive (phenol resin or the like) or a solvent-free adhesive (epoxy resin or the like) that is cured by a chemical reaction.
  • a solution-based adhesive phenol resin or the like
  • a solvent-free adhesive epoxy resin or the like
  • An adhesive that does not contain a hydrophilic group (for example, a hydroxy group) in the monomer can be used.
  • the heat transfer plate 313 of the third embodiment is the “partition member” according to the present disclosure
  • the rib 314 is the “interval holding member” according to the present disclosure
  • the heat exchange element piece 315 is the “partition member” according to the present disclosure.
  • the "unit component" and the heat exchange element 306 correspond to the “heat exchange element” according to the present disclosure.
  • the exhaust air passage 316 is the “exhaust air passage” according to the present disclosure
  • the air supply air passage 317 is the “air supply air passage” according to the present disclosure
  • the exhaust flow 303 is the “exhaust flow” according to the present disclosure
  • the air supply 304 is the book. Corresponds to the "air flow” related to disclosure.
  • the adhesive member 341 corresponds to the "adhesive member” according to the present disclosure
  • the fiber bundle 340 corresponds to the "fiber bundle” according to the present disclosure
  • the fiber 340a corresponds to the "fiber”.
  • the first twist direction R1 corresponds to the "first direction” according to the present disclosure
  • the second twist direction R2 corresponds to the "second direction” according to the present disclosure.
  • the heat exchange type ventilator 302 corresponds to the "heat exchange type ventilator” according to the present disclosure.
  • the heat exchange element according to the third embodiment including the modification is useful as a heat exchange element used in a heat exchange type ventilation device or the like.
  • the present disclosure is used in a cold region or the like, and is a heat exchange element that 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. 28 is an exploded perspective view showing the structure of the conventional heat exchange element 41.
  • the heat exchange element 41 is configured by laminating a large number of heat exchange element single units 42 composed of a functional paper 43 having heat transfer properties and ribs 44.
  • a plurality of ribs 44 made 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. As a result, the air flow path 47 is alternately ventilated between the supply air flow and the exhaust flow for each functional paper 43, and heat exchange is performed between the supply air flow and the exhaust flow.
  • a rib 44 in which a paper string 45 having a substantially circular cross section is wrapped with a hot melt resin 46 is formed, and the formed rib 44 is adhered to the functional paper 43 by the hot melt resin 46.
  • the distance between the functional papers 43 is maintained.
  • improvement of energy saving in air conditioners has been emphasized, and further improvement of heat exchange efficiency is required for heat exchange elements mounted on heat exchange type ventilation devices such as air conditioners.
  • 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.
  • an exhaust air passage and an air supply air passage 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. 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 has a substantially flat cross section due to a fiber melting layer in which a plurality of fiber members on the surface are melted and fixed. The fiber melt layer is formed so as to wrap around the surface of the spacing member in the direction in which the exhaust flow or the air supply flow flows.
  • the heat exchange type ventilation device is configured by mounting the above heat exchange element.
  • the heat exchange element and the heat exchange type ventilation device using the heat exchange element according to the present disclosure can improve the heat exchange efficiency.
  • 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.
  • 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 has a substantially flat cross section due to a fiber melting layer in which a plurality of fiber members on the surface are melted and fixed.
  • the fiber melt layer is formed so as to wrap around the surface of the spacing member in the direction in which the exhaust flow or the supply air flow flows.
  • the interval holding member may have a configuration in which a plurality of fiber members are twisted.
  • the fiber melt layer can be formed along the twisted fiber member, so that the fiber melt layer is formed so as to wrap around the surface of the interval holding member. It will be easier to do. This is preferable because the heat exchange element according to the present disclosure makes it easy to design the shape of the interval holding member.
  • the partition member has a configuration including a first region for adhering to face the fiber melting layer and a second region for adhering to the fiber member other than the fiber melting layer. May be good. According to such a configuration, in the unit constituent member, a height difference occurs in the stacking direction between the space-holding members arranged on the partition member. Therefore, the heat exchange element according to the present disclosure reflects the height difference between the space-holding members. As a result, the partition member can be further wrinkled. Thereby, the heat exchange element according to the present disclosure can further improve the heat exchange efficiency.
  • the fiber melt layer is formed in a spiral shape in the direction in which the exhaust flow or the supply air flow flows.
  • the adhesive surface between the partition member and the spacing member is distorted along the spiral shape on the surface of the spacing member, and the partition member is regularly and repeatedly wrinkled. That is, the exhaust flow (or supply airflow) collides with the wrinkles of the partition member and surely becomes a turbulent flow, and the air in the exhaust flow (or supply airflow) is more likely to be mixed.
  • the heat exchange element according to the present disclosure can improve the heat transfer coefficient inside.
  • the 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 can enjoy the effects of the heat exchange element described above, and the reliability as the heat exchange type ventilator is improved.
  • FIG. 21 is a schematic view showing an installation example of a heat exchange type ventilator 402 provided with a heat exchange element 406 in a house.
  • FIG. 22 is a schematic view showing the structure of the heat exchange type ventilator 402.
  • a 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.
  • 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 ventilator 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.
  • 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 ventilator 402.
  • 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. 23 is an exploded perspective view showing the structure of the heat exchange element 406.
  • FIG. 24 is a diagram showing the structure of the heat exchange element piece 415 constituting the heat exchange element 406.
  • the heat exchange element 406 is composed of a plurality of heat exchange element pieces 415. A plurality of ribs 414 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 stacking a plurality of heat exchange element pieces 415 in different directions one by one so that the ribs 414 are orthogonal to each other. With such a configuration, in the heat exchange element 406, 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 alternately formed layer by layer with the exhaust flow 403. The air supply 404 and the air supply 404 alternately flow at right angles. As a result, the heat exchange element 406 enables heat exchange between the exhaust flow 403 and the supply airflow 404 via the heat transfer plate 413.
  • 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 ribs 414 is arranged in parallel on the surface of the heat transfer plate 413 at predetermined intervals. Specifically, as shown in FIG. 23, of the two heat exchange element pieces 415 adjacent to each other on the upper and lower sides, the rib 414 is placed on one surface of the heat transfer plate 413 constituting one of the heat exchange element pieces 415.
  • Ribs 414 are formed by adhesion so that the longitudinal direction of the heat transfer plate 413 is directed from the end side 413a of the heat transfer plate 413 to 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 the end side 413b of the heat transfer plate 413 constituting the one heat exchange element piece 415.
  • the rib 414 is formed by adhesion so as to go from the (end side substantially orthogonal to the end side 413a) side to the opposite end side 413d side.
  • 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 heat transfer plate 413 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. Further, in the fourth embodiment, the heat transfer plate 413 is configured to have a plurality of wrinkles 418 caused by the substantially flat ribs 414 described later between the adjacent ribs 414.
  • 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 is a member for forming a gap for passing an exhaust flow 403 or an air flow 404 between the heat transfer plates 413, that is, an exhaust air passage 416 or an air supply air passage 417 when the heat transfer plates 413 are stacked. ..
  • each of the plurality of ribs 414 has a substantially flat shape having a flat surface (flat surface 414a).
  • the rib 414 is composed of a plurality of fiber members 440 and a fiber melting layer 442 in which the fiber members 440 are melted and welded to each other on the surface of the rib 414.
  • the rib 414 is composed of a main body portion formed by twisting a plurality of fiber members 440 and a fiber melting layer 442 formed on a flat surface 414a portion of the main body portion, and is composed of the rib 414.
  • the main body (fiber member 440) is exposed on the side surface 414b.
  • the fiber member 440 on the side surface 414b of the rib 414 can be said to be a portion (fiber unmelted layer) other than the fiber molten layer 442.
  • FIG. 24 shows a state in which the fiber melting layer 442 and the heat transfer plate 413 are fixed at a portion facing each other.
  • the rib 414 is the heat transfer plate 413 and other portions. It may stick with. That is, the rib 414 is a portion where the portion other than the fiber melt layer 442 (the fiber unmelted layer of the fiber member 440) and the heat transfer plate 413 face each other, as shown in FIG. 26 (a) described later. It may stick to the heat transfer plate 413.
  • the rib 414 may be fixed to the heat transfer plate 413 at a portion where a part of both (fiber molten layer 442, fiber unmelted layer) and the heat transfer plate 413 face each other.
  • Each of the fiber members 440 has a substantially circular cross section and extends in the same direction as the rib 414. Then, the plurality of fiber members 440 form the rib 414 by twisting each other in the clockwise direction with respect to the direction in which the exhaust flow 403 or the air supply 404 flows, for example.
  • the material of the fiber member 440 it is sufficient that it has hygroscopicity and has a certain strength, and for example, a resin member such as vinylon, polypropylene, polyethylene, polyethylene terephthalate, or polyamide can be used.
  • the fiber melting layer 442 is a melting layer in which a plurality of fiber members 440 are melted and welded (fixed) to each other, and is selectively formed on the flat surface 414a portion of the rib 414.
  • the fiber melting layer 442 is formed, by heating while pressurizing, the rib width Ry in the direction perpendicular to the plane 414a becomes smaller than the rib width Rx in the direction including the plane 414a.
  • the fiber melting layer 442 formed on the flat surface 414a portion is spirally formed so as to wrap around the surface of the rib 414 in the direction in which the exhaust flow 403 or the supply airflow 404 flows.
  • FIG. 25 is a diagram showing a method of manufacturing the rib 414.
  • the rib 414 before heating is formed by spirally twisting an aggregate 470 of a plurality of fiber members 440.
  • FIG. 25 shows the rib 414 as viewed from a direction parallel to the rib width Rx.
  • the rib 414 is formed by pressing the heated heat roll 471 from above and below against the aggregate 470 having a substantially circular cross section and rotating the rib 414 so as to send it out in one direction.
  • the rib 414 is crushed in the pressed direction by pressurizing the aggregate 470 with the heat roll 471, and the cross section of the rib 414 changes to a substantially flat shape.
  • the fiber member 440 at the portion where the upper and lower heat rolls 471 come into contact (the portion that becomes the flat surface 414a of the rib 414) is melted (welded), and the fiber melting layer 442 is selectively selected. Is formed in. Further, since the aggregate 470 has a spiral structure, the aggregate 470 is delivered while rotating in one direction with the delivery direction of the heat roll 471 as an axis. As a result, the fiber melt layer 442 can be formed along the twisted fiber member 440.
  • the pressurizing means a known method can be used, and examples thereof include a flat plate press and a roll press.
  • a flat plate press and a roll press examples thereof include a flat plate press and a roll press.
  • the heating means a known method can be used, and examples thereof include a non-contact heating method using hot air or flame, electromagnetic induction, or a contact heating method using a heater.
  • contact-type heating is particularly preferable.
  • the fiber melt layer 442 is formed by heating while pressurizing, but it may be formed by pressurizing a material that has been once heated and melted before re-curing. .. At this time, the shape at the time of pressurization can be more fixed by cooling at the same time at the time of pressurization.
  • the rib 414 having the fiber melting layer 442 spirally formed so as to wrap around the surface of the rib 414 is formed. ..
  • FIG. 26 is a partial cross-sectional view showing the heat exchange element piece 415 and the laminating process thereof.
  • FIG. 26A is a partial cross-sectional view of the heat exchange element piece 415
  • FIG. 26B is a cross-sectional view showing a laminating process of the heat exchange element piece 415.
  • the portion of the heat transfer plate 413 that faces and adheres to the fiber melting layer 442 is also referred to as a first region 443.
  • the portion of the heat transfer plate 413 that faces and adheres to the fiber member 440 (fiber unmelted layer) other than the fiber molten layer 442 is also referred to as a second region 444. Further, the portion of the heat transfer plate 413 that faces and adheres to a part of both (fiber molten layer 442, fiber unmelted layer) is also referred to as a third region 445.
  • a plurality of ribs 414 having a fiber melting layer 442 spirally formed so as to wrap around the surface of the ribs 414 are arranged on one surface of the heat transfer plate 413.
  • the heat exchange element piece 415 is configured.
  • each of the ribs 414 is fixed to the heat transfer plate 413 in various states. Specifically, the first and second ribs 414 from the left in FIG. 26A are in a state of being fixed to the heat transfer plate 413 at the portion where the fiber melting layer 442 and the heat transfer plate 413 face each other. The state of the rib 414 in the first region 443 of the heat transfer plate 413). Further, the rightmost rib 414 in FIG.
  • 26A is a portion where the heat transfer plate 413 and the portion other than the fiber melt layer 442 (the fiber unmelted layer of the fiber member 440) face each other. It is in a state of being fixed to 413 (a state of ribs 414 in the second region 444 of the heat transfer plate 413). Further, the second rib 414 from the right in FIG. 26 (a) is a portion where a part of both (fiber molten layer 442, fiber unmelted layer) and the heat transfer plate 413 face each other, and is a heat transfer plate. It is in a state of being fixed to 413 (a state of ribs 414 in the third region 445 of the heat transfer plate 413). Then, when the heat exchange element piece 415 is formed, the heat transfer plate 413 is adhered so as to follow the surface shape of the rib 414, so that the heat transfer plate 413 has wrinkles 418.
  • the surface of the rib 414 has irregularities due to the fiber melting layer 442. Therefore, when the ribs 414 and the heat transfer plate 413 are adhered to each other, the heat transfer plate 413 has wrinkles 418 that reflect the uneven shape of the ribs 414. Can be said to be formed.
  • the height of the rib 414 in the stacking direction of the heat exchange element piece 415 is low when bonded in the first region 443 of the heat transfer plate 413 and high when bonded in the second region 444. There is a height difference.
  • the heat exchange element pieces 415 to be laminated are affected by the height difference of the ribs 414 on the heat exchange element pieces 415 in the previous stage. Will receive.
  • wrinkles 418 are further formed on the heat transfer plate 413 on the heat exchange element piece 415 to be laminated (see (a) of FIG. 27).
  • FIG. 27 is a partial cross-sectional view of the heat exchange element pieces 415 in a laminated state.
  • 27 (a) is a partial cross-sectional view showing the arrangement state of the ribs 414
  • FIG. 27 (b) is a partial cross-sectional view showing the air passage structure of the exhaust flow 403 or the air flow 404. Note that FIG. 27 (b) corresponds to the AA cross section of FIG. 27 (a).
  • the heat transfer plate 413 and the substantially flat rib 414 are adhered so as to follow the shape of the surface of the rib 414. Further, the rib height Rz in the stacking direction increases or decreases depending on the arrangement state of the ribs 414. Due to these factors, the heat transfer plate 413 is distorted on the adhesive surface with the rib 414, so that the heat transfer plate 413 has wrinkles 418.
  • the shape of the exhaust air passage 416 (or the air supply air passage 417) is distorted by the wrinkles 418 generated in the heat transfer plate 413.
  • the exhaust flow 403 (or supply airflow 404) flowing through the exhaust air passage 416 (or the air supply air passage 417) is turbulent by hitting the wrinkles 418, and becomes a turbulent flow to agitate the internal air.
  • the air inside is mixed, so that the heat transfer coefficient is improved. That is, the heat exchange element 406 can improve the heat exchange efficiency.
  • the heat exchange element 406 has the same structure because the rib 414 is similarly arranged in the supply airflow 404. Has an action effect.
  • the rib 414 has a substantially flat cross section formed by a fiber melting layer 442 in which a plurality of fiber members 440 on the surface are melted and fixed. Further, in the heat exchange element 406, the fiber melting layer 442 is formed so as to wrap around the surface of the rib 414 in the direction in which the exhaust flow 403 or the supply airflow 404 flows. By doing so, unevenness due to the fiber melting layer 442 is generated on the surface of the rib 414. Therefore, when the rib 414 and the heat transfer plate 413 are adhered to each other, the heat transfer plate 413 is provided with the uneven shape of the rib 414. Reflected wrinkles 418 are formed.
  • the exhaust flow 403 (or the supply airflow 404) flowing through the exhaust air passage 416 (or the supply air passage 417) runs along the surface of the heat transfer plate 413 in the exhaust air passage 416 (or in the supply air passage 417).
  • it becomes a turbulent flow.
  • the exhaust flow 403 (or supply airflow 404) is obstructed by the wrinkles 418 of the heat transfer plate 413.
  • the air in the exhaust flow 403 (or in the supply airflow 404) is mixed, so that the heat transfer coefficient in the heat exchange element 406 is improved. Therefore, the heat exchange element 406 can improve the heat exchange efficiency as compared with the conventional heat exchange element in which the heat transfer plate 413 does not have wrinkles 418.
  • the rib 414 has a configuration in which a plurality of fiber members 440 are twisted. According to such a configuration, since the fiber member 440 is twisted, the fiber melting layer 442 can be easily formed so as to wrap around the surface of the rib 414, so that the shape of the rib 414 can be easily designed.
  • the heat transfer plate 413 has a first region 443 that faces and adheres to the fiber melting layer 442 and a portion other than the fiber melting layer 442 (fiber member 440).
  • the configuration includes a second region 444 that faces and adheres to the fiber unmelted layer).
  • a height difference occurs in the stacking direction between the ribs 414 arranged on the heat transfer plate 413. Therefore, the heat transfer plate 413 in the heat exchange element piece 415 reflects the height difference between the ribs 414. Can further generate wrinkles 418. As a result, the heat exchange element 406 can further improve the heat exchange efficiency.
  • the fiber melting layer 442 is formed in a spiral shape in the direction in which the exhaust flow 403 or the supply airflow 404 flows.
  • the adhesive surface between the heat transfer plate 413 and the rib 414 is distorted along the spiral shape of the surface of the rib 414, and wrinkles 418 are regularly repeated on the heat transfer plate 413. That is, the exhaust flow 403 (or the supply airflow 404) collides with the wrinkles 418 of the heat transfer plate 413 to surely form a turbulent flow, and the air in the exhaust flow 403 (or the supply airflow 404) is more likely to be mixed.
  • the heat exchange element 406 can further improve the internal heat transfer coefficient.
  • the rib 414 has a substantially flat shape having a flat surface (flat surface 414a), and the fiber member 440 is melted on the surface of the rib 414.
  • the structure has a fiber melting layer 442 welded to each other. According to such a configuration, the boundary between the fiber member 440 and the fiber melt layer 442 is continuously connected in the rib 414. Further, since the rib 414 has a substantially flat shape, it is easy to continuously bond the rib 414 at the boundary between the first region 443, the second region 444, and the third region 445 of the heat transfer plate 413.
  • the heat transfer plate 413 is likely to adhere along the uneven surface of the rib 414, and wrinkles 418 are likely to be formed. That is, the exhaust flow 403 (or the supply airflow 404) collides with the wrinkles 418 of the heat transfer plate 413 to form a turbulent flow, and the air in the exhaust flow 403 (or the supply airflow 404) is more likely to be mixed. As a result, the heat transfer coefficient in the heat exchange element 406 is improved.
  • the heat exchange type ventilator 402 equipped with the heat exchange element 406 according to the fourth embodiment can enjoy the effect of the heat exchange element 406 described above, and is reliable as a heat exchange type ventilator. improves.
  • the heat exchange element 406 according to the fourth embodiment is provided with the fiber melting layer 442 continuously on the surface of the rib 414, but the present invention is not limited to this.
  • the rib 414 may be deformed into a structure in which the fiber melting layer 442 is intermittently provided by heating an arbitrary portion of the rib 414 while partially pressurizing the rib 414.
  • the heat exchange element related to the deformation can arbitrarily control the position of the wrinkles 418 generated on the adhesive surface between the heat transfer plate 413 and the rib related to the deformation, and the exhaust flowing in the air passage. It is easy to design the turbulence generated in the flow 403 or the supply airflow 404. As a result, the heat transfer coefficient in the air passage is improved, and the heat exchange element involved in the deformation can further improve the heat exchange efficiency.
  • the heat exchange element 406 of the fourth embodiment corresponds to the "heat exchange element” according to the present disclosure.
  • the heat transfer plate 413 corresponds to the "partition member” according to the present disclosure
  • the rib 414 corresponds to the "interval holding member” according to the present disclosure
  • the heat exchange element piece 415 corresponds to the "unit constituent member” according to the present disclosure.
  • the fiber member 440 corresponds to the “fiber member” according to the present disclosure
  • the fiber melt layer 442 corresponds to the "fiber melt layer” according to the present disclosure.
  • the heat exchange type ventilator 402 is the "heat exchange type ventilator” according to the present disclosure
  • the exhaust flow 403 is the “exhaust flow” according to the present disclosure
  • the supply airflow 404 is the “supply airflow” according to the present disclosure.
  • 416 corresponds to the "exhaust air passage” according to the present disclosure
  • the air supply air passage corresponds to the "supply air passage” according to the present disclosure.
  • the heat exchange element according to the fourth embodiment including the modification 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.
  • Heat exchange element 12 Heat exchange element single unit 13 Functional paper 14 Rib 15 Paper string 16 Hot melt resin 17 Air flow path 21 Heat exchange element 22 Heat exchange element single unit 23 Functional paper 24 Rib 25 Paper string 26 Hot melt resin 27 Air flow path 31 Heat exchange element 32 Heat exchange element single unit 33 Functional paper 34 Rib 35 Paper string 36 Hot melt resin 37 Air flow path 41 Heat exchange element 42 Heat exchange element single unit 43 Functional paper 44 Rib 45 Paper string 46 Hot melt resin 47 Air flow path 101 House 102 Heat Exchange Type Ventilation Device 103 Exhaust Flow 104 Air Supply Port 105 Body Case 106 Heat Exchange Element 107 Exhaust Fan 108 Inside Air Port 109 Exhaust Port 110 Air Supply Fan 111 Outside Air Port 112 Air Supply Port 113 Heat Transfer Plate 113a End 11b End Side 113c Edge 113d Edge 114 rib 114a Inner rib 114b Outer rib 115 Heat exchange element piece 116 Exhaust air passage 117 Air supply air passage 140 Fiber member 141 Adhesive member 150 Fixing material 151 Encapsulant 201 House 202 Heat exchange

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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

Une pluralité de nervures (114) d'une pièce d'élément d'échange de chaleur (115) constituant un élément d'échange de chaleur (106) sont configurés de manière à comprendre : une nervure externe (114b) qui est située aux deux extrémités d'une plaque d'échangeur de chaleur (113) ; et une pluralité de nervures internes (114a) situées plus loin vers l'intérieur de la plaque d'échangeur de chaleur (113) que la nervure externe (114b). En outre, un matériau de fixation (150) pour fixer la nervure externe (114b) et la nervure interne (114a) de manière adjacente à la nervure externe (114b) est formé entre la nervure externe (114b) et la nervure interne (114a) de manière adjacente à la nervure externe (114b).
PCT/JP2020/045964 2019-12-23 2020-12-10 Élément d'échange de chaleur et dispositif de ventilation à échange de chaleur le mettant en œuvre WO2021131725A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2019-231060 2019-12-23
JP2019231060A JP2021099183A (ja) 2019-12-23 2019-12-23 熱交換素子及びそれを用いた熱交換形換気装置
JP2019237817A JP2021105496A (ja) 2019-12-27 2019-12-27 熱交換素子及びそれを用いた熱交換形換気装置
JP2019-237817 2019-12-27
JP2020-006915 2020-01-20
JP2020006915A JP2021113650A (ja) 2020-01-20 2020-01-20 熱交換素子及びそれを用いた熱交換形換気装置
JP2020-014346 2020-01-31
JP2020014346A JP2021120609A (ja) 2020-01-31 2020-01-31 熱交換素子セル、熱交換素子セルを複数備えた熱交換素子、及び熱交換素子を用いた熱交換形換気装置

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WO2013061419A1 (fr) * 2011-10-26 2013-05-02 三菱電機株式会社 Elément d'échange de chaleur total et procédé de fabrication de celui-ci
JP2013257107A (ja) * 2012-06-14 2013-12-26 Mitsubishi Electric Corp 熱交換素子及び熱交換素子の製造方法
JP2014020603A (ja) * 2012-07-13 2014-02-03 Mitsubishi Electric Corp 熱交換素子
JP2020180735A (ja) * 2019-04-25 2020-11-05 パナソニックＩｐマネジメント株式会社 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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JPS57190276U (fr) * 1981-05-25 1982-12-02
JPH03286995A (ja) * 1990-03-30 1991-12-17 Matsushita Seiko Co Ltd 熱交換器
JPH05288488A (ja) * 1991-03-15 1993-11-02 Toshiba Corp 熱交換素子及びその製造方法
JPH07208891A (ja) * 1994-01-14 1995-08-11 Toshiba Corp 熱交換素子
JPH08110076A (ja) * 1994-10-11 1996-04-30 Matsushita Seiko Co Ltd 熱交換素子
JPH08178577A (ja) * 1994-12-26 1996-07-12 Daikin Ind Ltd 熱交換エレメント
JP2000502788A (ja) * 1995-12-29 2000-03-07 ランテック・プロダクツ・インコーポレーテッド サーマルベッド及び触媒ベッド用のチャネルを有するセラミックパッキング
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
WO2013061419A1 (fr) * 2011-10-26 2013-05-02 三菱電機株式会社 Elément d'échange de chaleur total et procédé de fabrication de celui-ci
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