US20120168136A1 - Total heat exchange element - Google Patents

Total heat exchange element Download PDF

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Publication number
US20120168136A1
US20120168136A1 US13/496,055 US200913496055A US2012168136A1 US 20120168136 A1 US20120168136 A1 US 20120168136A1 US 200913496055 A US200913496055 A US 200913496055A US 2012168136 A1 US2012168136 A1 US 2012168136A1
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US
United States
Prior art keywords
adhesive
spacer
heat exchange
partition member
spacers
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.)
Abandoned
Application number
US13/496,055
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English (en)
Inventor
Masaru Takada
Hajime SOTOKAWA
Hidemoto Arai
Takanori Imai
Akira Doi
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Mitsubishi Electric Corp
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Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARAI, HIDEMOTO, IMAI, TAKANORI, DOI, AKIRA, SOTOKAWA, HAJIME, TAKADA, MASARU
Publication of US20120168136A1 publication Critical patent/US20120168136A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane
    • 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
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives

Definitions

  • the present invention relates to a total heat exchange element of a plate laminated type that performs total heat exchange between two fluids in different states, and, more particularly to a total heat exchange element incorporated in a ventilator or an air conditioner and suitably applied as a total heat exchange element that performs air-to-air total heat exchange.
  • a heat exchange element of a plate laminated type is widely used because the heat exchange element has a large heat transfer area per unit volume and can perform highly efficient heat exchange with a relatively small size.
  • a material having not only a heat transfer property but also a gas blocking property and moisture permeability is used for partition members that partition two fluids that should be subjected to heat exchange, whereby the partition members are used as a total heat exchange element.
  • a heat exchange element of this type a heat exchange element of a cross-flow structure to which corrugation machining is applied is well known (see, for example, Patent Literature 1).
  • the spacers reduce an area of a flow of fluid (in the field of air conditioning and ventilating apparatuses, the fluid is mainly the air). Therefore, there is also a heat exchange element in which, as means for further reducing ventilation resistance, the spacers are made hollow to further reduce the ventilation resistance of the element (e.g., Patent Literatures 3 to 6).
  • Patent Literature 1 Japanese Patent Application Laid-open No. H04-24492
  • Patent Literature 2 Japanese Patent Application Laid-open No. H03-113292
  • Patent Literature 3 Japanese Utility Model No. S62-45583
  • Patent Literature 4 Japanese Patent No. 3414012
  • Patent Literature 5 Japanese Patent Application Laid-open No. 2005-140362
  • Patent Literature 6 Japanese Patent Application Laid-open No. 2001-147092
  • Patent Literature 7 Japanese Patent Application Laid-open No. 2007-315649
  • Patent Literature 8 International Publication No. 2008/041327
  • the deterioration is caused in the following manner that the water-soluble moisture absorbent added to the partition members comes into contact with moisture of the water solvent adhesive and dissolves and diffuses, flows out from the partition members to a portion to which moisture of the water solvent adhesive and the spacers penetrate, and an amount of the water-soluble moisture absorbent in the partition members decreases. Furthermore, because a bonded surface also has moisture permeability compared with that before the moisture absorbent addition, a portion that has conventionally been a non-moisture permeation surface can be regarded as a moisture permeation area. As a result, it was found that high performance of an element could be expected because a moisture permeation area of the entire element increased.
  • the present invention has been devised in view of the above and it is an object of the present invention to provide a total heat exchange element that can show an equivalent effect even if an amount of use of a water-soluble moisture absorbent added to an adhesive or coated on or impregnated in partition members is reduced and therefore can be stably manufactured while preventing, for example, a trouble in a dielectric drying process due to use of a large amount of the adhesive.
  • a total heat exchange element in which unit components each including a partition member and spacers are laminated with directions of the unit components alternately changed, flow passages, spaces among which are retained by the spacers, are formed among the partition members, two kinds of fluids are caused to pass through the flow passages adjacent to each other, and heat exchange is performed between the two kinds of fluids via the partition members, wherein the partition member has a heat transfer property, moisture permeability, and a gas blocking property, the spacer is formed in a hollow cylindrical shape polygonal in section extending substantially in parallel along a surface of the partition member, and includes an overlapping wall that overlaps the partition member and supporting walls that rise from side ends of the overlapping wall and are vertically provided between the partition members respectively being upper and lower parts in a laminating direction to retain a space between the partition members, and the overlapping wall has thickness smaller than that of the supporting walls and stuck to the partition member with a first adhesive having moisture permeability.
  • a total heat exchange element wherein the spacer is formed in a hollow space triangular in section formed by a singularity of the overlapping wall and a pair of the supporting walls, and the spacers are arranged at a space with which an equivalent diameter de1 of a cross section of a flow passage in the spacer and an equivalent diameter de2 of a cross section of a flow passage formed by the spacers adjacent to each other and the partition members respectively being upper and lower parts in the laminating direction satisfy a relation 1.6 ⁇ de 2 /de 1 ⁇ 2.
  • the material thinner than the supporting walls is used for the overlapping wall of the spacer having the hollow shape bonded to the partition member. Therefore, an amount of a moisture absorbent necessary for obtaining the same moisture exchange efficiency decreases. Even if an amount of use of a water-soluble moisture absorbent added to an adhesive or originally coated on or impregnated in the partition member is reduced, the total heat exchange element can show equivalent effects. Consequently, it is possible to stably manufacture the element while preventing the afore mentioned problems, for example, a trouble in a dielectric drying process due to use of a large amount of the adhesive. Because an amount of use of the adhesive can be reduced, energy necessary for drying of the adhesive decreases. This contributes to energy saving in a manufacturing process and resource saving. Further, there is also an effect that a more inexpensive element can be provided.
  • the arrangement interval of the spacers on the partition members is secured to the maximum, a bonding area per unit volume of the element decreases. Therefore, an amount of use of a moisture permeable adhesive in use decreases.
  • an effect of reduction of ventilation resistance by the hollow spacers decreases and is meaningless if the arrangement interval is secured too large. Therefore, both of a reduction in ventilation resistance and possibility of performing a dielectric drying process are realized only when the spaces are arranged at an optimum interval on the partition members.
  • An input of a hydraulic power apparatus of a machine in which the element is incorporated can be reduced by reducing the ventilation resistance. This contributes to energy saving of the machine. Further, because the dielectric drying process is possible, energy saving of a manufacturing process, resource saving, and manufacturing of an inexpensive element are possible.
  • FIG. 1 is a perspective view of a total heat exchange element according to a first embodiment of the present invention.
  • FIG. 2 is a sectional view showing the configuration of a unit component included in the total heat exchange element.
  • FIG. 3 is a perspective view of a spacer.
  • FIG. 4 is a perspective view of an intermediate product formed by coupling spacers and a state of one spacer separated from the intermediate product.
  • FIG. 5 is a structure schematic diagram of a one-side corrugated board processing machine for manufacturing the intermediate product of the spacers.
  • FIG. 6 is a perspective view of a roll coater that applies an adhesive to the spacer.
  • FIG. 7 is a sectional view for explaining a relation between the thickness of a sheet used for the spacers and a flow passage area.
  • FIG. 1 is a perspective view of a total heat exchange element according to a first embodiment of the present invention.
  • a total heat exchange element 50 is configured by laminating a plurality of unit components 10 while changing the direction of each of the unit components 10 by 90 degrees.
  • One unit component 10 includes partition members 2 and hollow cylindrical spacers 3 triangular in section arranged in parallel and fixedly attached to the principal planes of the partition members 2 .
  • the spacers 3 retain a space between two partition members 2 adjacent to each other in a laminating direction and form a flow passage between the two partition members 2 .
  • a plurality of the flow passages are alternately formed in the laminating direction with the direction of each of the flow passages changed by 90 degrees.
  • two kinds of fluids e.g., gas such as the air
  • FIG. 2 is a sectional view of the configuration of the unit component 10 included in the total heat exchange element 50 .
  • FIG. 3 is a perspective view of the spacer 3 .
  • the partition members 2 are made of a material having a heat transfer property, moisture permeability, and a gas blocking property.
  • the spacer 3 is formed in a hollow cylindrical shape triangular in section extending substantially in parallel along the surfaces of the partition members 2 .
  • one wall surface forms an overlapping wall 3 b that overlaps and is fixedly attached to the partition member 2 .
  • the remaining two wall surfaces form supporting walls 3 a that rise from side ends of the overlapping wall 3 b to be vertically provided between two partition members 2 respectively being upper and lower parts in the laminating direction and retain a space between the two partition members 2 .
  • the two supporting walls 3 a are manufactured by folding a sheet-like material into two.
  • the folded supporting walls 3 a and the overlapping wall 3 b are fixedly attached with an adhesive (a third adhesive) 7 applied to side portions thereof and form the cylindrical spacer 3 ( FIG. 3 ).
  • the spacer 3 is fixed by sticking the overlapping wall 3 b to the partition member 2 with an adhesive having moisture permeability (a first adhesive) 5 .
  • the thickness of the overlapping wall 3 b of the spacer 3 is smaller than the thickness of the supporting walls 3 a .
  • Two unit components 10 overlapping in the laminating direction are laminated and bonded by fixedly attaching, with an adhesive (a second adhesive), the top (a bent portion of the supporting walls 3 a ) of the hollow cylindrical spacer 3 triangular in section and the rear surface of the partition member 2 of another unit component 10 adjacent on the upper side in the laminating direction.
  • the spacer 3 is formed in the hollow cylindrical shape triangular in section formed by the one overlapping wall 3 b and the two supporting walls 3 a .
  • the shape of the spacer 3 is not limited to such a sectional triangular shape.
  • the shape of the spacer 3 only has to be a hollow cylindrical shape polygonal in section including the overlapping wall 3 b and the supporting walls 3 a .
  • the shape of the spacer 3 can be a hollow cylindrical shape square in section formed by an opposed pair of overlapping walls 3 b and an opposed pair of supporting walls 3 a.
  • FIG. 4 is a perspective view of an intermediate product formed by coupling the spacers 3 and a state of one spacer 3 separated from the intermediate product.
  • FIG. 5 is a structure schematic diagram of a one-side corrugated board processing machine for manufacturing the intermediate product of the spacers. An intermediate product of a coupled body shown in FIG.
  • the spacer 3 obtained by coupling a large number of the hollow spacers 3 sideways in a lateral direction is manufactured from a sheet-like material to be formed as the supporting walls 3 a of the spacers 3 and a sheet-like material to be formed as the overlapping wall 3 b (having thickness smaller than that of the sheet-like material to be formed as the supporting walls 3 a ) using a one-side processing machine shown in FIG. 5 used in general in manufacturing a single-faced corrugated fiberboard for packaging.
  • This intermediate product is separated as appropriate along peaks to obtain the hollow spacers 3 .
  • the shape of the supporting walls 3 a is a corrugated shape.
  • the spacer 3 is generally manufactured in a hollow shape triangular in section.
  • the corrugated supporting walls 3 a are molded by gears h 1 and h 2 , the adhesive 7 is applied to the supporting walls 3 a by a roller r 1 , and the overlapping wall 3 b is stuck to the supporting walls 3 a by a roller r 2 .
  • a ratio of the height t to the width w of the bottom side is about 0.3 to 0.5 ( FIG. 4 ).
  • the adhesive 5 having moisture permeability is applied to the overlapping wall 3 b of the hollow spacer 3 manufactured as explained above to bond the spacer 3 to the partition members 2 .
  • a brush or the like can be used for the application of the adhesive 5 .
  • FIG. 6 is a perspective view of the roll coater for applying the adhesive 5 to the spacer 3 .
  • a roller R rotates, whereby the adhesive 5 stored in a reservoir is uniformly applied to the rear surface of the overlapping wall 3 b of the spacer 3 .
  • An example in which the coupled intermediate product is cut and then moisture permeable adhesive 5 is applied is explained above.
  • a procedure for first applying the adhesive 5 to the overlapping walls 3 b of the coupled spacers 3 and then separating the spacers 3 before bonding the spacers 3 to the partition member 2 can be adopted.
  • the adhesive 5 having moisture permeability used for bonding of the partition members 2 and the spacers 3 for example, an adhesive obtained by mixing any one of water-soluble deliquescent alkali metal salt and deliquescent alkali earth metal salt or a mixture thereof in a water-based solvent resin emulsion adhesive is used.
  • Lithium chloride, calcium chloride, or the like having strong moisture absorption is mainly used in a total heat exchange element for air conditioning. In other adhesives, the effect can be expected as long as the adhesives have moisture permeability.
  • the partition member 2 there is no limitation on the material and the configuration thereof as long as the heat transfer property, the gas blocking property, and the moisture permeability are concurrently satisfied.
  • special processed paper imparted with the gas blocking property and the moisture permeability by mixing water-soluble resin or a water-soluble moisture absorbent therein a material obtained by adding a moisture absorbent to special processed paper substantially not having a hole for air circulation by using well-beaten wood pulp, and a material obtained by sticking porous woven fabric, non-woven fabric, or the like to a resin thin film in which resin itself has moisture permeability are known.
  • condensation occurs on the inside of the element depending on a usage environment condition according to a temperature change during heat exchange. If the condensation drips to the outside, the condensation causes various product failures. Therefore, the material is desirably water absorptive.
  • the material plays a role of retaining a space between the partition members 2 . Therefore, a material that is deformed as little as possible is desirable.
  • Concerning bending rigidity of a sheet-like material when the material is considered an elastic member, it is known that, in general, the bending rigidity is proportional to a cube of the thickness in a bending direction. In that regard, a material having large thickness is suitable. However, if the material is too thick, an area of a hollow portion of the spacer 3 decreases (a spacer shown on the right of FIG. 7 ). This is against a reduction in the ventilation resistance of the element, which is the original purpose of the use of the spacer 3 . Therefore, the thickness of the material is suitably about 60 micrometers to 200 micrometers.
  • a material that prevents the heat transfer property and the moisture permeability of the partition members 2 as little as possible is desirable.
  • the gas blocking property for preventing gas transfer between the circulating two fluids is already secured by the partition members 2 and is not necessary for the overlapping wall 3 b . Therefore, the material is desirably rather a porous material because circulation of humidity is not prevented. Therefore, in this embodiment, an adhesive having moisture permeability is used to realize, for example, a reduction in moisture permeation resistance between the material and the partition members 2 and, in the case of an adhesive including a water-soluble moisture absorbent, a reduction in the moisture permeation resistance of the material itself due to penetration of the moisture absorbent.
  • the adhesive is added by a large amount, the insulation resistance of the element itself falls and the element could substantially change to a conductor because of the influence of a large amount of moisture of the adhesive and impurities (if the moisture absorbent is added, the moisture absorbent itself).
  • dielectric drying is mainly used because of high energy efficiency, little unevenness in a large area, and the like.
  • an object to be dried is a conductor, a circuit is short-circuited and the object cannot be dried. Then, other means such as drying by air heating has to be considered.
  • the adhesive 7 (the third adhesive) used in sticking the supporting walls 3 a and the overlapping wall 3 b together to manufacture the hollow spacer 3 .
  • an adhesive containing a water-soluble moisture absorbent is used for bonding of the spacer 3 and the partition member 2 as a moisture permeable adhesive
  • an adhesive not allowing moisture to penetrate after drying is used as the adhesive 7 used for sticking the supporting walls 3 a and the overlapping wall 3 b together to manufacture the spacer 3
  • the adhesive (the second adhesive) 6 used in after bonding the hollow spacer 3 and the partition member 2 , laminating and bonding the spacer 3 and the partition member 2 while rotating the same by 90 degrees.
  • the adhesive having moisture permeability explained above, there is an effect of improving moisture permeability to be higher than before in a portion to be laminated and bonded.
  • an amount of the moisture absorbent of the entire element is increased too much, dielectric drying cannot be performed. Therefore, it is necessary to reduce to adjust an amount of the moisture absorbent added to other portions (e.g., the partition member 2 and the adhesive having moisture permeability used in bonding the partition member 2 and the spacer 3 ).
  • partition member 2 a sheet was used that was obtained by impregnating about 8 g/m 2 of water-soluble and deliquescent lithium chloride as a moisture absorbent in special processed paper (having basis weight of about 40 g/m 2 and thickness of about 50 micrometers) devised to secure Gurley ventilation resistance in JIS P8117, which served as a scale of the gas blocking property, equal to or higher than 200 seconds by a method of, for example, sufficiently beating pulp.
  • the special processed paper was processed into a shape of one spacer 3 having the width w ( FIG. 4 ) of about 4.3 millimeters and the height t ( FIG. 4 ) of about 1.8 millimeters.
  • the adhesive 5 having moisture permeability about 25 g/m 2 of an adhesive having a solid content ratio of about 28% obtained by mixing about 10% of lithium chloride (LiCl) in a vinyl acetate resin emulsion adhesive, which contains water as a main solvent, as a water-soluble moisture absorbent was applied to the portion of the overlapping wall 3 b made of the thin material.
  • the overlapping wall 3 b was bonded to the partition member 2 .
  • the spacers 3 were arranged and bonded such that, when a dimension of the spacer 3 in a direction horizontal to the partition member 2 was represented as width w, a space x ( FIG.
  • a comparative example 1 as materials of the partition member 2 and the spacer 3 , materials same as those in the example 1 were used.
  • the spacer 3 was formed in an external shape same as that in the example 1 and solid rather than hollow. That is, from the configuration of the example 1, the spacer 3 was changed to a spacer that had the same external shape and was solid rather than hollow.
  • adhesives adhesives not having moisture permeability were used.
  • a comparative example 3 from the configuration of the comparative example 2, the spacer 3 was changed to a spacer that had the same external shape and was solid rather than hollow. As all the adhesives, adhesives not having moisture permeability were used.
  • a comparative example 4 from the configuration of the example 2, the spacer 3 was changed to a spacer that had the same external shape and was solid rather than hollow. As all the adhesives, adhesives not having moisture permeability were used.
  • a comparative example 5 from the configuration of the example 3, the spacer 3 was changed to a spacer that had the same external shape and was solid rather than hollow. As all the adhesives, adhesives not having moisture permeability were used.
  • a comparative example 7 from the configuration of the comparative example 6, the spacer 3 was changed to a spacer that had the same external shape and was solid rather than hollow. As all the adhesives, adhesives not having moisture permeability were used.
  • a material same as (having the same thickness as) the supporting walls 3 a in the portion not in contact with the partition member 2 was used for the overlapping wall 3 b of the hollow spacer 3 in contact with the partition member 2 .
  • an amount of the moisture absorbent added to the adhesive 5 used for bonding of the spacer 3 and the partition member 2 was increased by a weight increase ratio of the paper of the overlapping wall 3 b .
  • the configuration in the comparative example 8 was the same as the configuration in the example 1.
  • the adhesive having moisture permeability was used for the adhesive 6 for lamination and bonding as well. Instead, to set an amount of the moisture absorbent of the entire element same as that in the example 1, an amount of a moisture absorbing material added to the adhesive 5 used for bonding of the spacer 3 and the partition member 2 was reduced. Otherwise, shapes and materials are the same as those in the example 1.
  • the hollow spacers 3 having an external dimension and formed of a material same as those of the example 1 were arranged without a space.
  • the arrangement interval of the hollow spacers 3 was set to 0. This means that this configuration has spacers of a general corrugated fin shape in the past.
  • Dielectric drying possibility during manufacturing of the elements obtained in the examples and the comparative examples and the moisture exchange efficiency and the ventilation resistance of the elements are summarized in Table 1. According to the table, in the examples 1 to 3 in which the adhesive having moisture permeability is used for the hollow spacers 3 , compared with the other comparative examples, the dielectric drying is possible if the space is equal to or larger than w.
  • the element has lower ventilation resistance and higher efficiency than those of the element including the solid spacers having the same external shape. Irrespective of whether the spacers 3 are hollow or solid, the ventilation resistance falls as the space between the spacers 3 is increased.
  • a radio de 2 /de 1 of de 1 and de 2 is desirably in a range of a value equal to or larger than 1.6 and smaller than 2.
  • the moisture exchange efficiency of the example 4 is slightly improved. This is because the moisture absorbent was added to the lamination side as well and therefore the moisture absorbent easily penetrated to the lamination side adhesive and the paper in the bonded portion and moisture permeability was improved.
  • the present invention can be applied to various forms in the total heat exchange element and effects can be expected.
  • the total heat exchange element is suitable for apparatuses in various fields that make use of total heat exchange for simultaneously exchanging latent heat and sensible heat.

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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)
  • Drying Of Gases (AREA)
US13/496,055 2009-09-16 2009-09-16 Total heat exchange element Abandoned US20120168136A1 (en)

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PCT/JP2009/066163 WO2011033624A1 (ja) 2009-09-16 2009-09-16 全熱交換素子

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US (1) US20120168136A1 (de)
EP (1) EP2472210B1 (de)
JP (1) JPWO2011033624A1 (de)
KR (1) KR20120023132A (de)
CN (1) CN102472601B (de)
WO (1) WO2011033624A1 (de)

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US20140150998A1 (en) * 2012-11-27 2014-06-05 Air Change Pty Limited Heat exchanger

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SE533453C2 (sv) 2008-08-06 2010-10-05 Sven Melker Nilsson Kanalsystem
CN103233399B (zh) * 2013-04-11 2016-08-17 广东华凯科技股份有限公司 一种乳胶纤维板保水处理剂及其制备方法和保水方法
CN105579807B (zh) * 2013-10-02 2018-07-13 东丽株式会社 热交换用原纸和使用其的全热交换元件
CN105874295A (zh) * 2013-12-26 2016-08-17 东丽株式会社 全热交换元件的制造方法和全热交换元件
JP6172068B2 (ja) * 2014-06-30 2017-08-02 三菱電機株式会社 熱交換換気装置
WO2019124286A1 (ja) * 2017-12-22 2019-06-27 パナソニックＩｐマネジメント株式会社 熱交換素子とそれを用いた熱交換形換気装置
JP6950517B2 (ja) * 2017-12-22 2021-10-13 パナソニックＩｐマネジメント株式会社 熱交換素子とそれを用いた熱交換形換気装置
JP7389514B1 (ja) * 2022-08-02 2023-11-30 株式会社テクノフロンティア 熱交換素子
JP7428421B1 (ja) 2022-08-23 2024-02-06 株式会社テクノフロンティア 熱交換素子

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WO2011033624A1 (ja) 2011-03-24
CN102472601A (zh) 2012-05-23
KR20120023132A (ko) 2012-03-12
EP2472210B1 (de) 2016-07-20
JPWO2011033624A1 (ja) 2013-02-07
CN102472601B (zh) 2013-12-25
EP2472210A1 (de) 2012-07-04

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