EP2131133A1 - Elément d'échange thermique - Google Patents

Elément d'échange thermique Download PDF

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Publication number
EP2131133A1
EP2131133A1 EP08720651A EP08720651A EP2131133A1 EP 2131133 A1 EP2131133 A1 EP 2131133A1 EP 08720651 A EP08720651 A EP 08720651A EP 08720651 A EP08720651 A EP 08720651A EP 2131133 A1 EP2131133 A1 EP 2131133A1
Authority
EP
European Patent Office
Prior art keywords
heat transfer
transfer sheet
rib
dividing
air passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08720651A
Other languages
German (de)
English (en)
Other versions
EP2131133B1 (fr
EP2131133A4 (fr
Inventor
Toshihiko Hashimoto
Shinobu Orito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2131133A1 publication Critical patent/EP2131133A1/fr
Publication of EP2131133A4 publication Critical patent/EP2131133A4/fr
Application granted granted Critical
Publication of EP2131133B1 publication Critical patent/EP2131133B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0015—Heat and mass exchangers, e.g. with permeable walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • 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
    • F28F2240/00—Spacing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/146—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded overmolded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove

Definitions

  • the present invention relates to a laminated-structured heat exchange element for use in heat exchange type ventilation fans for domestic use, in heat exchange type ventilators for buildings and the like, or in other air-conditioning systems.
  • Fig. 17 is a perspective view showing a heat exchanger using a conventional heat exchange element.
  • Fig. 18 is a sectional view showing a principal part thereof.
  • conventional heat exchanger 101 has a heat exchange element including pairs of plates 102 facing each other with a predetermined interval therebetween, and planer fin 104 having a corrugated cross section for forming a plurality of parallel flow passages 103 in a gap between plates 102.
  • Heat exchanger 101 includes spacers 105, which are introduced into every other step of plates 102, for guiding primary airflow M and secondary airflow N, and further includes space portion 106 on the downstream side of parallel flow passages 103 formed by fins 104.
  • Plate 102 is bonded to fin 104 and spacer 105 by an adhesive agent, respectively.
  • an inlet port for primary airflow M and an inlet port for secondary airflow N are disposed on the sides facing each other.
  • An outlet port for primary airflow M and an outlet port for secondary airflow N are disposed on the side perpendicular to the sides on which the inlet ports of primary airflow M and secondary airflow N are disposed.
  • the side facing the side on which the outlet ports of primary airflow M and secondary airflow N are disposed is closed. That is to say, in heat exchanger 101, primary airflow M and primary airflow N that have passed through parallel flow passages 103 change the directions in space portion 106 and flow out from the side perpendicular to the inlet port. Primary airflow M and primary airflow N carry out heat exchange via plate 102.
  • fin 104 is formed in a way in which pitch P is continuously reduced from one side to the side on which the outlet port is disposed.
  • a channel cross-sectional area of parallel flow passage 103 is changed so as to improve the heat-exchange efficiency.
  • heat exchange efficiency is thought to be improved by increasing a heat transfer area in a limited laminate height by reducing the interval between plates 102.
  • an adhesive agent to be used for bonding plate 102 and fin 104 overflows from the bond portion, thus remarkably reducing the effective area of plate 102.
  • the heat exchange efficiency is deteriorated.
  • plate 102 when plate 102 is formed of paper, in the actual manufacturing process, it is difficult to accurately adjust the thicknesses of fin 104 with uneven pitches P and spacer 105.
  • fin 104 and spacer 105 are adhesively bonded to each other, fin 104 having a large thickness is crushed while fin 104 having a small thickness cannot be properly bonded to plate 102.
  • the precision in the thickness direction is lowered. Therefore, deformation of plate 102 or the difference in height of each plate 102 may cause a drift in the heat exchange element, thereby reducing the heat exchange efficiency.
  • heat transfer sheet of a hoop material when heat transfer sheet of a hoop material is used, it is known that the dimension of the heat transfer sheet tends to be changed in a direction perpendicular to the hoop direction (wind-up direction) due to humidity, and the like. Therefore, mixing of primary airflow N and secondary airflow M may be increased because the adhesively bonded portion exfoliates due to the contraction of the heat transfer sheet after the heat exchange element is manufactured. Furthermore, due to the expansion of the heat transfer sheet, plate 102 may be deformed so as to cause a drift in the heat exchange element-This may deteriorate the heat exchange efficiency. Therefore, stable heat exchange efficiency is required to be maintained without being affected by deformation of the heat transfer sheet.
  • heat exchange efficiency performance may be unstable due to deformation of the heat transfer sheet because of problems of humidity and structure, and the like.
  • the present invention addresses the problems discussed above, and aims to provide a heat exchange element capable of stably obtaining high heat exchange efficiency performance.
  • the present invention relates to a heat exchange element including an opposed part formed in a center portion of a heat transfer sheet in each of a supply air passage and an exhaust air passage, in which supply air and exhaust air flow opposite to each other with the heat transfer sheet therebetween; and an orthogonal part formed on each end portion of the heat transfer sheet in each of the supply air passage and the exhaust air passage, in which supply air and exhaust air flow orthogonal to each other with the heat transfer sheet therebetween.
  • the heat transfer sheet is disposed so that a direction in which the heat transfer sheet is wound up is perpendicular to a flowing direction in which the supply air and the exhaust air are allowed to pass through, in the opposed part.
  • the present invention can obtain high heat exchange efficiency performance stably even when a heat transfer sheet is deformed due to humidity, structure problem, or the like.
  • a heat exchange element of the present invention includes a supply air passage for allowing supply air to pass through and an exhaust air passage for allowing exhaust air to pass through, which are alternately formed between a plurality of heat transfer sheets laminated on each other with a predetermined interval; an opposed part formed in a center portion of the heat transfer sheet in the supply air passage and the exhaust air passage, in which the supply air and the exhaust air flow opposite to each other with the heat transfer sheet therebetween; an orthogonal part formed in each end portion of the heat transfer sheet in the supply air passage and the exhaust air passage, in which the supply air and the exhaust air flow orthogonal to each other with the heat transfer sheet therebetween; and a shielding rib being formed in the supply air passage and the exhaust air passage and preventing airflow leakage from regions other than an inlet port and an outlet port of the supply air and the exhaust air.
  • the heat transfer sheet is disposed so that a direction in which the heat transfer sheet is wound up is perpendicular to a flowing direction in which the supply air and the exhaust air are allowed to pass through,
  • the heat exchange element of the present invention includes a first dividing rib for dividing each air passage in a direction in which the supply air and the exhaust air flow in inside the supply air passage and the exhaust air passage.
  • the heat exchange element of the present invention includes a second dividing rib for dividing each air passage in a direction in which the supply air and the exhaust air flow out inside the supply air passage and the exhaust air passage.
  • the first dividing rib for dividing each air passage in a direction in which the supply air and the exhaust air flow in, which is provided inside the supply air passage and the exhaust air passage, and the second dividing rib for dividing each air passage in a direction in which the supply air and the exhaust air flow out, which is provided inside the supply air passage and the exhaust air passage, are connected to each other.
  • the deformed portions in the opposed part and the orthogonal part of the heat transfer sheet are fixed by the dividing rib. Therefore, interval between the heat transfer sheets can be maintained and deformation of the heat transfer sheet can be corrected. Furthermore, by the first dividing rib in the opposed part and the second dividing rib in the orthogonal part, a surface is formed stably.
  • the first dividing rib and the second dividing rib are connected to each other by a curved connecting rib.
  • an end portion of the heat transfer sheet is positioned inside the shielding rib.
  • the shielding rib includes a stepped portion.
  • the stepped portions are fitted into each other, thus increasing pressure loss when air flows through the fitted portion. Therefore, leakage of the supply air and the exhaust air can be reduced, thus eliminating the change of the heat exchange efficiency.
  • a plurality of the dividing ribs are provided and reinforcing ribs are provided between neighboring dividing ribs.
  • reinforcing ribs are provided between neighboring dividing ribs.
  • the deformation of the heat transfer sheet can be corrected by the dividing rib and the reinforcing rib, even when the heat transfer sheet may be deformed by the influence of humidity, structure, or the like, the change of the heat exchange efficiency performance can be eliminated.
  • the heat transfer sheet is disposed in a center portion in a height direction of the shielding rib, and the shielding rib and the dividing rib are integrally formed of thermoplastic resin by insert molding, thereby forming the shielding rib and the dividing rib on both surfaces of the heat transfer sheet.
  • the dividing rib and the heat transfer sheet are adhesively bonded by insert molding. Furthermore, an area of the dividing rib and the heat transfer sheet are adhesively bonded to each other is increased. Therefore, the deformation of the heat transfer sheet can be corrected and the change in the heat exchange efficiency performance can be eliminated.
  • the heat transfer sheet is disposed in a center portion in a height direction of the shielding rib, and the shielding rib and the dividing rib are integrally formed of thermoplastic resin by insert molding, thereby forming the shielding rib on both surfaces of the heat transfer sheet and forming the dividing rib on one surface of the heat transfer sheet.
  • thermoplastic resin tends to flow and the height of the dividing rib can be reduced. Therefore, the interval between the heat transfer sheet of the supply air passage and the heat transfer sheet of the exhaust air passage can be reduced. Therefore, the number of heat transfer plates can be increased under the condition of limited laminate dimension. Thus, the heat exchange efficiency performance can be improved.
  • a wind-up direction is a hoop direction of the heat transfer sheet.
  • Fig. 1 is a schematic perspective view showing a heat exchange element in accordance with a first exemplary embodiment of the present invention.
  • Fig. 2 is a schematic perspective view showing the heat exchange element.
  • heat exchange element 1 in accordance with this exemplary embodiment includes supply air passage 3 for allowing supply air A to pass through and exhaust air passage 4 for allowing exhaust air B to pass through, which are alternately formed between a plurality of heat transfer sheets 2 laminated on each other with a predetermined interval.
  • supply air passages 3 and exhaust air passages 4 has opposed part 5, in which supply air A and exhaust air B flow opposite to each other with the heat transfer sheet 2 therebetween, in the center portion of heat transfer sheet 2.
  • each of supply air passages 3 and exhaust air passages 4 has orthogonal part 6, in which supply air A and exhaust air B flow orthogonal to each other with heat transfer sheet 2 therebetween, on each end portion of heat transfer sheet 2.
  • each of supply air passage 3 and exhaust air passage 4 has shielding rib 9 for preventing leakage of an airflow from regions other than inlet port 7 and outlet port 8 of supply air A and exhaust air B.
  • Heat transfer sheet 2 is disposed so that hoop direction C (a direction in which a band-like hoop material is wound up) of heat transfer sheet 2 is perpendicular to the flowing direction in which supply air A and exhaust air B are allowed to flow in opposed part 5.
  • heat transfer sheet 2 is produced from hoop material (winding band-like material) 10 by cutting or punching process. Heat transfer sheet 2 is disposed so that the direction in which supply air A or exhaust air B flows in is perpendicular to the hoop direction C of the thus produced heat transfer sheet 2.
  • Heat transfer sheet 2 is made of Japanese paper, flame retardant paper, or specially-treated paper having heat conductivity, moisture permeability, and a gas shielding property.
  • shielding rib 9 is made of thermoplastic resin such as ABS (acrylonitrile butadiene styrene), AS (acrylonitrile styrene), and PS (polystyrene). These materials are also used in the following exemplary embodiments.
  • Heat exchange element 1 of this exemplary embodiment having such a configuration carries out heat exchange via heat transfer sheet 2 by allowing supply air A and exhaust air B to pass through in every other air passages.
  • pulp fibers for forming paper at the time of sheet-formation tend to be arranged in parallel in hoop direction C flowing on the sheet forming machine.
  • Heat transfer sheet 2 tends to stretch in hoop direction C because pulp fibers swell at the time of absorbing moisture.
  • heat transfer sheet 2 is disposed so that hoop direction C of heat transfer sheet 2 becomes perpendicular to the flowing direction of opposed part 5 allowing supply air A and exhaust air B to pass through.
  • heat transfer sheet 2 is deformed by the influence of humidity or the like, since heat transfer sheet 2 is fixed by shielding rib 9 in the direction at a right angle with respect to the hoop direction.
  • deformed portion 11 is formed along hoop direction C.
  • Fig. 5 is a schematic perspective view showing a heat exchange element in accordance with a second exemplary embodiment of the present invention.
  • a plurality of first dividing ribs 12a having different length for dividing flow passages are disposed inside supply air passage 3 and exhaust air passage 4 in parallel to the direction in which supply air A and exhaust air B flow in.
  • Other configuration is the same as that in the first exemplary embodiment.
  • a plurality of first dividing ribs 12a are disposed.
  • the present invention is not limited to this configuration and may include at least one dividing rib.
  • first dividing ribs 12a are provided in parallel to the direction in which supply air A and exhaust air B flow in, but they may not necessarily be disposed in parallel in the present invention as long as supply air A and exhaust air B flow out smoothly.
  • heat exchange element of this exemplary embodiment even when heat transfer sheet 2 is deformed by the influence of humidity or the like, a predetermined interval between heat transfer sheets 2 can be maintained.
  • Fig. 6 is a schematic perspective view showing a heat exchange element in accordance with a third exemplary embodiment of the present invention.
  • a plurality of second dividing ribs 12b having different length for dividing the flow passage are disposed in orthogonal part 6 inside supply air passage 3 and exhaust air passage 4 in parallel to the direction in which supply air A and exhaust air B flow out.
  • Other configuration is the same as those in the first exemplary embodiment.
  • a plurality of second dividing ribs 12b are disposed.
  • the present invention is not limited to this configuration and may include at least one dividing rib.
  • second dividing ribs 12b are provided in parallel to the direction in which supply air A and exhaust air B flow out, but they may not necessarily be disposed in parallel in the present invention as long as supply air A and exhaust air B flow out smoothly.
  • heat exchange element of this exemplary embodiment even when heat transfer sheet 2 is deformed by the influence of humidity or the like, a predetermined interval between heat transfer sheets 2 can be maintained.
  • Fig. 7 is a schematic perspective view showing a heat exchange element in accordance with a fourth exemplary embodiment of the present invention.
  • a plurality of first dividing ribs 12a having different length provided in parallel to the direction in which supply air A and exhaust air B flow in and a plurality of second dividing ribs 12b having different length provided in parallel to the direction in which supply air A and exhaust air B flow out are connected to each other.
  • first and second dividing ribs 12a and 12b are fixed by integrated first and second dividing ribs 12a and 12b. Consequently, the deformation of heat transfer sheet 2 can be further corrected.
  • first dividing rib 12a in opposed part 5 and second dividing rib 12b in the orthogonal part the surface is formed stably.
  • first and second dividing ribs 12a and 12b are disposed.
  • the present invention is not limited to this configuration and may include at least one connected body.
  • first dividing ribs 12a are provided in parallel to the direction in which supply air A and exhaust air B flow in as well as second dividing ribs 12b are provided in parallel to the direction in which supply air A and exhaust air B flow out, but may not be necessarily in parallel as long as supply air A and exhaust air B can flow in and flow out smoothly in the present invention.
  • heat exchange element of this exemplary embodiment even when heat transfer sheet 2 is deformed by the influence of humidity or the like, a predetermined interval between heat transfer sheets 2 can be maintained. Furthermore, even when variation in dimension of shielding rib 9 occurs and twisting power is applied at the time of lamination, a predetermined interval between heat transfer sheets 2 can be maintained.
  • Fig. 8 is a schematic perspective view showing a heat exchange element in accordance with a fifth exemplary embodiment of the present invention.
  • a plurality of first dividing ribs 12a having different length provided in parallel to the direction in which supply air A and exhaust air B flow in and a plurality of second dividing ribs 12b having different length provided in parallel to the direction in which supply air A and exhaust air B flow out are connected to each other at R-shaped (curved) connecting ribs 13.
  • first and second dividing ribs 12a and 12b are fixed by integrated first and second dividing ribs 12a and 12b, so that the deformation of heat transfer sheet 2 can be further corrected. Furthermore, by first dividing rib 12a in opposed part 5 and second dividing rib 12b in orthogonal part 6, the surface is formed stably. In addition, air flowing from orthogonal part 6 to opposed part 5 flows along connecting rib 13.
  • heat exchange element of this exemplary embodiment even when heat transfer sheet 2 is deformed by the influence of humidity or the like, a predetermined interval between heat transfer sheets 2 can be maintained. Furthermore, even when variation in dimension of shielding rib 9 occurs at the time of lamination, a predetermined interval between heat transfer sheets 2 can be maintained. In addition, since air flowing from orthogonal part 6 to opposed part 5 flows along the R shape of connecting rib 13, pressure loss can be reduced.
  • Fig. 9 is a schematic perspective view showing a heat exchange element in accordance with a sixth exemplary embodiment of the present invention.
  • shielding rib 9 and dividing rib 12c are integrally formed of thermoplastic resin by insert molding.
  • heat transfer sheet 2 by disposing heat transfer sheet 2 in a center portion in the height direction of shielding rib 9 and insert-molding thereof, shielding rib 9 and dividing rib 12c are formed on both surfaces of heat transfer sheet 2.
  • Fig. 10 is a schematic perspective view showing a heat exchange element in accordance with a seventh exemplary embodiment of the present invention.
  • Fig. 11 is a schematic sectional view of a principal part taken on line 11-11, and is a side configuration view showing an end portion of the heat transfer sheet in inlet port 7 and outlet port 8 of supply air A and exhaust air B of heat transfer sheet 2 in this exemplary embodiment.
  • shielding rib 9 and dividing rib 12c are integrally formed of thermoplastic resin by insert molding.
  • Figs. 10 is a schematic perspective view showing a heat exchange element in accordance with a seventh exemplary embodiment of the present invention.
  • Fig. 11 is a schematic sectional view of a principal part taken on line 11-11, and is a side configuration view showing an end portion of the heat transfer sheet in inlet port 7 and outlet port 8 of supply air A and exhaust air B of heat transfer sheet 2 in this exemplary embodiment.
  • shielding rib 9 and dividing rib 12c are integrally formed of thermoplastic resin by insert molding.
  • insert molding is carried out so that heat transfer sheet 2 is disposed in the center portion in the height direction of shielding rib 9, thereby forming shielding rib 9 and dividing rib 12c on both surfaces of the heat transfer sheet so that end portion 14 of the heat transfer sheet is formed inside shielding rib 9.
  • dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other by insert molding. Furthermore, with the above-mentioned configuration, since an area in which dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other is increased, the deformation of heat transfer sheet 2 can be corrected. Furthermore, the above-mentioned configuration improves bonding strength in inlet port 7 and outlet port 8 of supply air A and exhaust air B of heat transfer sheet 2.
  • the heat exchange element of this exemplary embodiment since dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other by insert molding and an area in which dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other is increased, deformation of heat transfer sheet 2 can be corrected. Furthermore, since end portion 14 of the heat transfer sheet is formed inside shielding rib 9 and an area in which heat transfer sheet 2 is adhesively bonded to end portion 14 and shielding rib 9 is increased, variation in bonding strength at the time of production can be eliminated. The change of heat exchange efficiency can be eliminated.
  • Fig. 12 is a schematic perspective view showing a heat exchange element in accordance with an eighth exemplary embodiment of the present invention.
  • Fig. 13 is a sectional view of the principal part of Fig. 12 , showing an exploded cross-section of two heat transfer sheets 2 in an opposed part seen from the direction of an air passage.
  • shielding rib 9 and dividing rib 12c are integrally formed of thermoplastic resin by insert molding.
  • stepped portion 15 is provided in shielding rib 9 when shielding rib 9 and dividing rib 12c are formed on both surfaces of the heat transfer sheet.
  • Stepped portion 15 may have concavity and convexity and may have any shapes as long as stepped portions 15 of shielding ribs 9 in the upper and lower parts may be fitted into each other.
  • the height of stepped portion 15 on a front surface (or a rear surface) of heat transfer sheet 2 is substantially the same as the height of dividing rib 12c, and the height of dividing rib 12c on a rear surface (or a front surface) of heat transfer sheet 2 is substantially the same as that of the height of dividing rib 12c. That is to say, when stepped portions 15 of shielding rib 9 of heat transfer sheet 2 positioned in the upper and lower parts are fitted into each other, the height of stepped portion 15 and that of dividing rib 12c are set so that dividing rib 12c can be fixed in contact with heat transfer sheet 2 in the upper part.
  • dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other by insert molding and an area in which dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other is increased, deformation of heat transfer sheet 2 can be corrected. Furthermore, stepped portions 15 are fitted into each other, so that pressure loss when air flows between shielding ribs 9 can be increased at the time of lamination.
  • dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other by insert molding and an area in which dividing rib 12c and heat transfer sheet 2 are adhesively bonded to each other is increased, deformation of heat transfer sheet 2 can be corrected. Furthermore, it is possible to reduce the leakage of air volume, eliminating the change in the heat exchange efficiency.
  • Fig. 14 is a schematic perspective view showing a heat exchange element in accordance with a ninth exemplary embodiment of the present invention.
  • Fig. 15 is a sectional view of a principal part of Fig. 14 , showing an exploded cross-section of two heat transfer sheets 2 in the opposed part seen from the direction of an air passage.
  • shielding ribs 9 are integrally formed of thermoplastic resin by insert molding.
  • insert molding is carried out so that heat transfer sheet 2 is disposed in the center portion in the height direction of shielding rib 9, thereby forming shielding rib 9 on both surfaces of heat transfer sheet 2.
  • a plurality of dividing ribs 12d having a predetermined height are provided in a predetermined interval of heat transfer sheet 2 on any one surface of front and rear surfaces of the heat transfer sheet. That is to say, in this exemplary embodiment, the height of dividing rib 12d is twice as that of shielding rib 9. Therefore, with the above-mentioned configuration, sectional area of dividing rib 12d is twice as the case where the dividing rib is provided on both surfaces.
  • thermoplastic resin tends to flow and the height of dividing rib 12d can be further lowered. Therefore, the interval of heat transfer sheet 2 can be reduced and the number of heat transfer sheets 2 can be increased under the condition of the limited laminate dimension. Therefore, it is possible to improve the heat exchange efficiency performance.
  • Fig. 16 is a schematic perspective view showing a heat exchange element in accordance with a tenth exemplary embodiment of the present invention.
  • shielding rib 9 is integrally formed of thermoplastic resin by insert molding. Furthermore, insert molding is carried out so that heat transfer sheet 2 is disposed in the center portion in the height direction of shielding rib 9, thereby forming shielding rib 9 on both surfaces of heat transfer sheet 2.
  • a plurality of dividing ribs 12d having a predetermined height are provided in a predetermined interval on heat transfer sheet 2. Furthermore, a plurality of reinforcing ribs 16 are provided between dividing ribs 12d. For a material of reinforcing rib 16, materials that are the same as those of dividing rib 12d and shielding rib 9 can be used.
  • thermoplastic resin flows easily and the height of dividing rib 12d can be lowered, so that the interval of heat transfer sheet can be reduced. Therefore, since the number of heat transfer sheets 2 can be increased under the condition of a limited laminate dimension, the heat exchange efficiency performance is improved. Furthermore, since deformation of heat transfer sheet 2 can be corrected by dividing rib 12d and reinforcing rib 16, even when heat transfer sheet 2 is deformed by the influence of humidity or the like, change in the heat exchange efficiency performance can be eliminated.
  • the present invention can be used as a laminated-structured heat exchange element for use in heat exchange type ventilation fans for domestic use, in heat exchange type ventilators for buildings and the like, or in other air-conditioning systems.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP08720651.2A 2007-03-30 2008-03-28 Elément d'échange thermique Active EP2131133B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007093255A JP4877016B2 (ja) 2007-03-30 2007-03-30 熱交換素子
PCT/JP2008/000784 WO2008126372A1 (fr) 2007-03-30 2008-03-28 Elément d'échange thermique

Publications (3)

Publication Number Publication Date
EP2131133A1 true EP2131133A1 (fr) 2009-12-09
EP2131133A4 EP2131133A4 (fr) 2011-01-05
EP2131133B1 EP2131133B1 (fr) 2015-05-06

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ID=39863532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08720651.2A Active EP2131133B1 (fr) 2007-03-30 2008-03-28 Elément d'échange thermique

Country Status (5)

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EP (1) EP2131133B1 (fr)
JP (1) JP4877016B2 (fr)
KR (1) KR101114786B1 (fr)
CN (1) CN101641564B (fr)
WO (1) WO2008126372A1 (fr)

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US9903669B2 (en) 2012-04-18 2018-02-27 Mitsubishi Electric Corporation Heat exchange element and air conditioner
WO2018132014A1 (fr) * 2017-01-16 2018-07-19 Recair Holding B.V. Récupérateur
US10317095B2 (en) 2011-12-19 2019-06-11 Core Energy Recovery Solutions Inc. Counter-flow energy recovery ventilator (ERV) core
EP3470762A4 (fr) * 2016-06-08 2020-01-15 Archive Works Co., Ltd. Échangeur de chaleur à plaques
US11079186B2 (en) 2016-03-31 2021-08-03 Alfa Laval Corporate Ab Heat exchanger with sets of channels forming checkered pattern

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CN101776406B (zh) * 2010-01-14 2012-12-05 天津大学 新风换气机用逆流式换热芯体
JP5541043B2 (ja) * 2010-09-28 2014-07-09 パナソニック株式会社 熱交換装置
JP5817590B2 (ja) * 2011-02-28 2015-11-18 Ｊｆｅスチール株式会社 空気予熱装置および排気再循環装置
JP5517975B2 (ja) * 2011-03-10 2014-06-11 三菱電機株式会社 全熱交換素子
CN102213558B (zh) * 2011-04-13 2012-10-03 甘肃蓝科石化高新装备股份有限公司 一种纯逆流板壳式热交换器板束
US20130042996A1 (en) * 2011-08-15 2013-02-21 Yunho Hwang Transferring heat between fluids
JP2013137179A (ja) * 2011-12-01 2013-07-11 Mitsubishi Electric Corp 全熱交換素子及び全熱交換器
JP5797328B2 (ja) * 2012-04-20 2015-10-21 三菱電機株式会社 熱交換素子
KR101401443B1 (ko) * 2012-05-29 2014-05-30 (주)센도리 맞흐름식 열교환장치
JP5790600B2 (ja) * 2012-07-13 2015-10-07 三菱電機株式会社 熱交換素子
EP3217132B1 (fr) * 2016-03-07 2018-09-05 Bosal Emission Control Systems NV Échangeur thermique à plaques et procédé de fabrication d'un échangeur thermique à plaques
JP6482492B2 (ja) * 2016-03-30 2019-03-13 エスペック株式会社 環境試験装置、流体導入部材及び環境調整装置
CN110718723A (zh) * 2018-07-13 2020-01-21 株式会社高山 用于电池和燃料电池堆的热交换器
CN110439788B (zh) * 2019-08-21 2024-07-09 宁波戴维医疗器械股份有限公司 一种医用压缩机
KR102388421B1 (ko) * 2020-06-19 2022-04-19 주식회사 한누리공조 열교환 장치

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10317095B2 (en) 2011-12-19 2019-06-11 Core Energy Recovery Solutions Inc. Counter-flow energy recovery ventilator (ERV) core
US9903669B2 (en) 2012-04-18 2018-02-27 Mitsubishi Electric Corporation Heat exchange element and air conditioner
US9664452B2 (en) 2012-04-20 2017-05-30 Mitsubishi Electric Corporation Heat exchange element
US10352629B2 (en) 2012-04-20 2019-07-16 Mitsubishi Electric Corporation Heat exchange element
US11079186B2 (en) 2016-03-31 2021-08-03 Alfa Laval Corporate Ab Heat exchanger with sets of channels forming checkered pattern
EP3470762A4 (fr) * 2016-06-08 2020-01-15 Archive Works Co., Ltd. Échangeur de chaleur à plaques
WO2018132014A1 (fr) * 2017-01-16 2018-07-19 Recair Holding B.V. Récupérateur
NL2018175B1 (nl) * 2017-01-16 2018-07-26 Recair Holding B V Recuperator

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JP2008249291A (ja) 2008-10-16
WO2008126372A1 (fr) 2008-10-23
KR20090125801A (ko) 2009-12-07
JP4877016B2 (ja) 2012-02-15
CN101641564B (zh) 2011-03-30
EP2131133B1 (fr) 2015-05-06
EP2131133A4 (fr) 2011-01-05
KR101114786B1 (ko) 2012-02-28
CN101641564A (zh) 2010-02-03

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