JP2015178949A - Partition member for total heat exchange element and total heat exchange element using material and total heat exchange type ventilation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance moisture permeability of a partition member for a total heat exchange element and to improve total heat exchange efficiency of a total heat exchange type ventilation device.SOLUTION: A partition member 14 for a total heat exchange element is configured: by coating a moisture permeable substance 21 with respect to the one in which an ultrafine fiber part 17 is laminated on a porous sheet 18; by laminating the porous sheet 18; and after that, by water-insolubilizing the moisture permeable substance 21. Thereby, the purpose is achieved.

Description

  The present invention relates to a partition member for a total heat exchange element having heat conductivity and moisture permeability, a total heat exchange element using the partition member for the total heat exchange element as a partition plate, and a total heat using the total heat exchange element The present invention relates to a replaceable ventilation device.

  2. Description of the Related Art Conventionally, a total heat exchange type ventilator that exchanges heat between air supply and exhaust during ventilation is known as a device that can ventilate without impairing the effects of cooling or heating.

  The total heat exchange type ventilator includes a heat exchange element for performing heat exchange, and the material has gas barrier properties (mainly carbon dioxide barrier properties) and heat transfer properties that prevent air supply and exhaust from mixing. Is required. In particular, a total heat exchange element that exchanges humidity at the same time as temperature must also have high moisture permeability. In addition, when used in indoor and outdoor conditions such as cold or tropical areas, condensation and icing occur inside the element, so water resistance is also required.

  In order to realize these, the total heat exchange element partition member used for this type of total heat exchange element has the following configuration.

  That is, a partition member for a total heat exchange element disposed between a high-temperature high-temperature air flow and a low-temperature low-temperature air flow, wherein a hydrophilic polymer is converted into an aqueous solution as a moisture-permeable substance, After coating on a porous sheet containing 30% by weight or more, it was configured to insolubilize in water.

  For example, see the following Patent Document 1 as a similar prior document.

JP 2008-14623 A

  The problem of the conventional example is that the moisture-permeable material is directly applied to the porous sheet containing 30% by weight or more of the hydrophilic fibers, so that the moisture-permeable material is thick and the moisture-permeable performance is low. That is, since the layer of the moisture permeable substance is peeled off from the porous sheet only by coating on the surface, in the conventional example, it is necessary to immerse the moisture permeable substance in the layer having many hydrophilic fibers.

  However, in this configuration, it is impossible to adjust the thickness of the layer having many hydrophilic fiber layers, and it is necessary to apply with an application amount more than necessary in order to ensure gas barrier properties, and the thickness of the moisture-permeable material is increased. End up. As a result, there existed a subject that moisture permeability performance was low and total heat exchange efficiency was low.

  Therefore, an object of the present invention is to provide a heat exchange type ventilator that improves the moisture permeability and has high total heat exchange efficiency.

  And in order to achieve this object, the present invention is a partition member for a total heat exchange element provided with an ultrafine fiber layer on the inner side and a porous sheet on both outer surfaces, the ultrafine fiber layer, It is characterized in that it is impregnated or coated with a moisture-permeable material and insolubilized in water, thereby achieving the intended purpose.

  The present invention is a partition member for a total heat exchange element that includes an ultrafine fiber layer on the inside and porous sheets on both outer surfaces, and impregnates or coats the ultrafine fiber layer with a moisture permeable substance, It is characterized by water insolubility and can improve moisture permeability performance compared to conventional partition members for total heat exchange elements with water resistance, and obtain a total heat exchange type ventilator with high total heat exchange efficiency. It can be done.

  That is, according to the present invention, the strength required for the partition member for the total heat exchange element can be ensured by using the porous sheets on both outer surfaces. Therefore, the ultrafine fiber layer can be formed thin by reducing the fiber diameter. In addition, since the fiber diameter is thin, the moisture-permeable material can be absorbed by capillary force, so that the moisture-permeable material can be collected in the ultrafine fiber layer and the thickness of the moisture-permeable material can be reduced. As a result, the moisture permeability is high and the total heat exchange efficiency can be increased. Furthermore, since the fiber diameter is also thin, the porosity of the ultrafine fiber layer can be increased while maintaining the strength, and the content of the moisture permeable substance can be increased.

  From the above, since a layer containing a thin moisture-permeable substance at a high concentration can be formed, a partition member for a total heat exchange element with high moisture permeability can be obtained, and a total heat exchange type ventilator with high total heat exchange efficiency can be obtained. Can be obtained.

Schematic diagram showing an installation example of the total heat exchange ventilator according to the first embodiment of the present invention. Diagram showing the structure of the total heat exchange type ventilator A perspective view showing a total heat exchange element of the total heat exchange type ventilator An exploded perspective view showing a total heat exchange element of the total heat exchange type ventilator Sectional drawing which shows the base material of the partition member for total heat exchange elements of the total heat exchange type ventilator Sectional drawing which shows the partition member for total heat exchange elements of the total heat exchange type ventilator Sectional drawing which shows the partition member for total heat exchange elements of the total heat exchange type ventilator Sectional drawing which shows the partition member for total heat exchange elements of the total heat exchange type ventilator

  Hereinafter, an embodiment of the present invention will be described.

(Embodiment 1)
In FIG. 1, a total heat exchange type ventilator 2 is installed in a house 1.

  Taking winter in Japan as an example, indoor air is discharged to the outdoors through a total heat exchange type ventilator 2 as indicated by a black arrow.

  Outdoor air is taken into the room through the total heat exchange type ventilator 2 as indicated by the white arrow.

  And while ventilating by this, the heat of indoor air is transmitted to outdoor air at the time of this ventilation, and the discharge | emission of inadvertent heat is suppressed.

  As shown in FIG. 2, the total heat exchange type ventilator 2 has a total heat exchange element 4 disposed in the main body case 3, and drives the fan 5, thereby sucking indoor air from the interior air port 6, and the total heat exchange element 4. Then, the air is discharged from the exhaust port 7 to the outside via the fan 5.

  Further, by driving the fan 8, outdoor air is sucked from the outside air port 9 and taken into the indoor through the air supply port 10 via the total heat exchange element 4 and the fan 8.

  Further, as shown in FIGS. 3 and 4, the total heat exchange element 4 is formed by mounting the total heat exchange element partition member 14 on the rectangular opening of the frame 11, and the indoor air air duct rib 12 and the outdoor. Heat exchange is performed by arranging air air passage ribs 13 alternately at predetermined intervals, and flowing the indoor air 15 described above between adjacent frame bodies 11 and the outdoor air 16 described above between adjacent frame bodies 11. It has a structure that makes it.

  In the winter season, the indoor air 15 is in a state of containing moisture from heating or human breath, and the outdoor air 16 is in a dry state. The indoor air 15 and the outdoor air 16 respectively flow on both surfaces of the partition member for total heat exchange element 14, so that the heat of the indoor air 15 is transmitted to the outdoor air 16 by heat transfer via the partition member for total heat exchange element 14. It is done. Further, moisture in the indoor air 15 is transmitted to the outdoor air 16 by moisture transmission through the partition member for total heat exchange element 14.

  In the present invention, as shown in a cross section in FIG. 5, the moisture-permeable material 21 is applied to the porous sheet 18 on which the ultrafine fiber portion 17 is laminated, and the porous sheet 18 is further laminated. Then, the partition member 14 for total heat exchange elements is comprised by making the moisture-permeable substance 21 water-insoluble. Here, the ultrafine fiber portion 17 and the porous sheet 18 are bonded using the bonding portion 23 as a contact point. The moisture permeable substance 21 is applied between the ultrafine fibers 19, and the partition member 14 for the total heat exchange element in which the moisture permeable part 20 is sandwiched between the porous sheets 18 is obtained as shown in a cross section in FIG. 6. Thereby, since the intensity | strength of the partition member 14 for total heat exchange elements can be improved, the fiber diameter of the ultrafine fiber 19 can be made thin and the ultrafine fiber part 17 can be formed thinly. In addition, since the moisture permeable substance 21 can be efficiently absorbed by the capillary force due to the thin fiber diameter, the moisture permeable substance 21 can be collected in the ultrafine fiber portion 17. Thereby, the thickness of the moisture permeable part 20 can be made thin. Furthermore, since the fiber diameter is also thin, the porosity of the ultrafine fiber portion 17 can be increased while maintaining the strength, so that the ratio of the moisture permeable substance 21 contained in the moisture permeable portion 20 can be increased.

  The parts of the partition member for total heat exchange element 14 that are resistant to moisture permeation are the moisture permeable part 20, the porous sheet 18, and the adhesive part 23. The moisture-permeable substance 21 and the adhesive part 23 pass through. When the gap of the porous sheet 18 and the moisture permeable substance 21 are compared, the gap that can move in the form of water vapor is less likely to become resistance, so the resistance of the moisture permeable portion 20 filled with the moisture permeable substance 21 is the rate of moisture permeability. Become. For this reason, the moisture permeation performance of the partition member for total heat exchange element 14 can be improved by forming the moisture permeable portion 20 thin. Furthermore, since the ultrafine fibers 19 included in the moisture permeable portion 20 have lower moisture permeability than the moisture permeable material 21, the moisture permeable performance can also be improved by increasing the ratio of the moisture permeable material 21 included in the moisture permeable portion 20. I can do it.

  Moreover, when the adhesion part 23 has low moisture permeability compared with the moisture permeable substance 21, it is preferable to adhere | attach partially, and although it is not limited to a specific shape, For example, dot shape, net shape, line shape, etc. are preferable. Further, when the bonding portion 23 penetrates into the porous sheet 18 or the ultrafine fiber portion 17, the ratio of the voids or the moisture permeable substance 21 in the porous sheet 18 to the partition member 14 for the total heat exchange element is reduced, and the moisture permeability is lowered. Resulting in. For this reason, it is preferable that the bonding portion 23 is formed by bonding only the interface between the ultrafine fiber portion 17 and the porous sheet 18, and various bonding methods can be used. For example, the porous sheet 18 is made of core-sheath fibers. Is mentioned.

  By using a core-sheath fiber coated with a resin having a melting point lower than that of the fiber for the shaft, it becomes possible to melt only the fiber surface, and by embedding the ultrafine fiber portion 17 in the melted resin, Only the interface between the ultrafine fiber portion 17 and the porous sheet 18 can be bonded.

  Further, since the moisture permeable portion 20 is sandwiched between the porous sheets 18, the moisture permeable portion 20 is not exposed on the surface, so that the moisture permeable portion 20 is damaged or detached from the partition member 14 for the total heat exchange element. Separation can be suppressed. Furthermore, since the surface of the porous sheet 18 has many pores, fine irregularities are formed. The fine irregularities cause disturbance in the direction of the airflow in the vicinity of the partition member 14 for the total heat exchange element, so that the temperature boundary layer formed in the vicinity of the partition member 14 for the total heat exchange element is disturbed. Thereby, since heat transfer and humidity transfer between the partition member for total heat exchange element 14 and the airflow are promoted, total heat exchange efficiency can be increased.

  Further, as shown in FIG. 7, the total heat exchange element partition member 14 may be configured such that the thickness of the other porous sheet 18 is thinner than the thickness of the one porous sheet 18 on both outer surfaces. Thus, by applying the moisture permeable substance 21 from the thin porous sheet 18a side to the thin porous sheet 18a bonded to one surface of the ultrafine fiber portion 17 and the thick porous sheet 18b bonded to the other surface. The distance that the moisture permeable substance 21 penetrates into the ultrafine fiber portion 17 can be shortened, and the amount of the moisture permeable substance 21 attached to the porous sheet 18a can be reduced. Since the moisture-permeable substance 21 adhering to the porous sheet 18a becomes moisture-permeable resistance, the moisture-permeable performance of the partition member 14 for total heat exchange elements can be improved by reducing it. In addition, the time for permeation can be shortened, the time for creating the partition member 14 for the total heat exchange element can be shortened, and the productivity can be improved. The magnitude relationship between the thickness of the thin porous sheet 18a and the thickness of the ultrafine fiber portion 17 is not particularly specified.

  Moreover, as shown in FIG. 8, the partition member 14 for total heat exchange elements has one porous sheet 18 on both outer surfaces and the other porous sheet 18 partially bonded to each other, and an uneven portion 22 is formed on both surfaces. May be provided.

  By forming the concavo-convex portion 22 on the surface of the porous sheet 18, turbulence occurs in the direction of the airflow in the ventilation path, so that the temperature boundary layer formed in the ventilation path is disturbed. Thereby, since heat transfer and humidity transfer between the partition member for total heat exchange element 14 and the airflow are promoted, total heat exchange efficiency can be increased. Furthermore, by bonding the porous sheets 18 to each other, mechanical properties such as rigidity and strength of the partition member for total heat exchange element 14 are improved. Therefore, damage and deformation of the partition member for total heat exchange element 14 can be suppressed in each process such as processing and use, and stable performance can be ensured.

  Further, a porous sheet 18 having an average pore diameter of 15 μm or more and 100 μm or less and a thickness of 20 μm or more and 500 μm or less and an ultrafine fiber portion 17 having an average pore diameter of 0.01 μm or more and 10 μm or less and a thickness of 0.5 μm or more and 20 μm or less are laminated. You may use what was done.

  Since pores having an average pore diameter of 15 μm or more are opened in the porous sheet 18, it is possible to promote liquid drainage of the moisture permeable substance 21, and the moisture permeable portion 20 can be brought close to the thickness of the ultrafine fiber portion 17. Moisture permeability can be improved. However, if a hole having an average pore diameter larger than 100 μm is opened, the moisture permeable part 20 may not be supported when the moisture permeable part 20 is thin. Further, if the thickness is less than 20 μm, the strength may be insufficient, and if the thickness exceeds 500 μm, the moisture permeability may be deteriorated.

  The ultrafine fiber in the present invention refers to a fiber having a fiber diameter of 0.1 μm to 1 μm. By providing this fiber diameter, it is possible to obtain a high porosity, for example, 80% or more, desirably 90% or more, while realizing the above average pore diameter. The porous sheet 18 is not limited to a nonwoven fabric / woven fabric, but in the case of a nonwoven fabric / woven fabric, the fiber diameter is larger than that of the ultrafine fiber, and a fiber diameter of 3 μm to 50 μm is preferable. When the fiber diameter of the substrate is less than 3 μm, the strength of the single fiber is low and the strength as a reinforcing material is insufficient, and when it is 50 μm or more, the thickness of the porous sheet 18 is increased and the moisture permeability performance is reduced. Therefore, it is not preferable.

  When the average pore diameter of the ultrafine fiber portion 17 is 10 μm or less, the moisture permeable substance 21 is entangled with the ultrafine fiber portion 17, so that dropping can be suppressed. However, if the average pore diameter is less than 0.01 μm, the number of locations where the moisture-permeable substance 21 is linearly arranged in the thickness direction of the moisture-permeable portion 20 decreases, so that the movement distance of moisture is extended and moisture-permeable performance is improved. May fall. Further, if the thickness is less than 0.5 μm, partial pinholes are likely to occur, and there is a risk that the gas barrier property as the partition member 14 for the total heat exchange element cannot be secured, and when the thickness is 20 μm or more, There is a possibility that the moisture permeable portion 20 becomes too thick and the moisture permeable performance is lowered.

  Moreover, as a water insolubilization method of the moisture permeable substance 21, it may be polymerized by impregnation or coating with a hydrophilic organic low molecular weight compound and then polymerized to make it insoluble in water.

  By coating in the state of an organic low molecular weight compound, it becomes possible to penetrate into the fine pores of the ultrafine fiber portion 17, and then water insolubilized by polymerization, so that the moisture permeable portion 21 is more densely packed with the moisture permeable material 21. 20 can be obtained. For this reason, the moisture permeation resistance of the moisture permeable part 20 can be lowered, and the moisture permeation performance of the partition member 14 for the total heat exchange element can be increased.

  In addition, as the moisture permeable substance 21, a drug having a quaternary ammonium group may be used.

  The quaternary ammonium group has a large charge bias and does not form hydrogen bonds with water molecules. For this reason, the moisture permeation performance of the partition member 14 for the total heat exchange element can be improved.

  Further, the bonding portion 23 may be made of a material having water resistance and moisture permeability.

  By providing the adhesive portion 23 with water resistance, it is possible to prevent performance deterioration with little shape change even under conditions where dew condensation or icing occurs inside the element. Moreover, the moisture permeability of the partition member 14 for total heat exchange elements can be improved by providing moisture permeability.

  Further, as a method of bonding the porous sheets 18 on both outer surfaces, thermocompression bonding by hot embossing may be used. At this time, the porous sheets 18 on both outer surfaces may be directly bonded to each other by thermocompression bonding or may be thermally bonded via the moisture permeable portion 20.

  By using hot embossing, the uneven portions 22 can be easily formed on both surfaces of the porous sheet 18.

  Moreover, it is good also as a structure provided with the core-sheath fiber coated with resin with the water resistance and moisture permeability which the porous sheet 18 can heat-bond.

  By providing a core-sheath fiber coated with a water-resistant and moisture-permeable resin that can be thermally bonded, it becomes possible to easily bond the ultrafine fiber portion 17 and the porous sheet 18 to the total heat exchange element. Mechanical properties such as rigidity and strength of the partition member 14 are improved. Furthermore, by bonding the core-sheath fiber and the ultrafine fiber at the contact point between the fibers, the volume of the bonding portion 23 can be reduced, and the moisture permeability of the partition member 14 for the total heat exchange element can be improved.

  Moreover, it is good also as a structure using the partition member 14 for the total heat exchange elements of the said structure for the total heat exchange element 4. FIG.

  With this configuration, since the partition member 14 for a total heat exchange element with high moisture permeability can be used, the total heat exchange element 4 with high latent heat exchange efficiency can be obtained.

  Moreover, it is good also as a structure which used the total heat exchange element 4 of the said structure for the total heat exchange type | formula ventilation apparatus 2. FIG.

  With this configuration, since the total heat exchange element 4 having high latent heat exchange efficiency can be used, the total heat exchange type ventilator 2 having high total heat exchange efficiency can be obtained.

  In addition, although it does not restrict | limit especially as the porous sheet 18, For example, a nonwoven fabric, a plastic film, and a woven fabric are mentioned. The material is preferably a water-resistant material, and examples thereof include polypropylene, polyethylene, polytetrafluoroethylene, polyester, polyamide, polyimide, polyethersulfone, polyacrylonitrile, and polyvinylidene fluoride.

  The material of the ultrafine fiber 19 is also preferably a water resistant material, and the same material as the porous sheet 18 can be used. In addition, examples of the manufacturing method include a melt blown method and an electrostatic spinning method, but are not limited thereto, and a known method can be used.

  The moisture-permeable substance 21 is preferably a polymer having a hydrophilic functional group. For example, a hydroxyl group, a sulfone group, an ester bond, a urethane bond, a carboxyl group, a carbo group, a phosphate group, an amino group, a fourth group, and the like. A class ammonium group etc. are mentioned. In particular, as described above, quaternary ammonium groups are preferable because of their high absorbency and release properties.

  In addition, as a method of adding the moisture permeable substance 21 to the ultrafine fiber part 17, there is impregnation or coating, but a coating method capable of controlling the coating amount is particularly preferable. As the coating method, a known method such as a spray method, a gravure coating method, a die coating method, an ink jet method, a comma coating method, or the like can be used.

  As a method for insolubilizing the moisture permeable substance 21, in addition to the above-described polymerization by polymerization, a method of treating with a crosslinking material after coating, a water-insoluble polymer dissolved in an organic solvent, applied and dried And a method in which a water-insoluble polymer is melted and cooled.

  When the moisture permeable substance 21 is polymerized, an organic compound having a plurality of polymerization sites may be added as a crosslinking material in addition to the hydrophilic organic low molecular weight compound. By adding, the water resistance of the organic polymer compound after polymerization is increased, and the strength of the moisture permeable portion 20 can be improved, and the swelling suppression effect due to water absorption can be obtained, which is preferable.

  Examples of the method for polymerizing the moisture-permeable substance 21 include radical polymerization, ionic polymerization, ring-opening polymerization, and the like, and radical polymerization with a rapid increase in molecular weight is particularly suitable. This is because the polymer compound after polymerization tends to stay in the ultrafine fiber portion 17 and the uniform moisture permeable portion 20 is easily formed due to the rapid increase in molecular weight. As the radical polymerization method, a known method can be used. For example, polymerization using heat, ultraviolet rays, or radiation can be performed. In particular, when radiation is used, the moisture-permeable substance 21 and the ultrafine fiber 19 can be bonded, which improves water resistance and is more preferable.

  The partition member for total heat exchange element 14 may be used in a state where the porous sheet 18 and the moisture permeable portion 20 are overlapped without being bonded, but the porous sheet 18 and the moisture permeable portion 20 are bonded. May be used. Examples of a method for bonding the porous sheet 18 and the moisture permeable portion 20 include heat fusion of fibers, use of an adhesive, and the like, but are not limited thereto, and a known method can be used.

  When an adhesive having water resistance and moisture permeability is used for the bonding portion 23, the adhesive material is preferably a polymer having a hydrophilic functional group in the same manner as the moisture permeable substance 21, such as a hydroxyl group, Examples include a sulfone group, an ester bond, a urethane bond, a carboxyl group, a carbo group, a phosphate group, an amino group, and a quaternary ammonium group. For example, the adhesive component can be obtained by introducing the functional group-containing epoxy adhesive or the adhesive component later by means such as graft polymerization.

  In addition to the organic polymer, the adhesive used for the bonding part 23 may be an inorganic material having water resistance and moisture permeability, for example, an adhesive containing silica.

  Note that the adhesive used for the bonding portion 23 is preferably a highly flexible adhesive. By using a highly flexible material, the adhesive portion 23 can absorb a dimensional change when the moisture-permeable substance 21 absorbs water and expands in volume, so that the water resistance of the partition member 14 for the total heat exchange element is increased. I can do it.

  In addition, although the shape, area, etc. of an unevenness | corrugation are not specifically limited, When heat-bonding using an embossing roll, it can change arbitrarily with the pattern of an embossing roll. Further, examples of the heat embossing method include single-sided embossing and double-sided embossing, but are not limited thereto, and a known method can be used.

  In addition, when the core-sheath fiber coated with a resin having water resistance and moisture permeability that can be thermally bonded is provided as the porous sheet 18, the material of the outer layer of the core-sheath fiber is hydrophilic like the moisture-permeable substance 21. Polymers having the above functional group are preferable, and examples thereof include a hydroxyl group, a sulfone group, an ester bond, a urethane bond, a carboxyl group, a carbo group, a phosphate group, an amino group, and a quaternary ammonium group. The material of the inner layer of the core-sheath fiber is preferably a water-resistant material, such as polypropylene, polyethylene, polytetrafluoroethylene, polyester, polyamide, polyimide, polyethersulfone, polyacrylonitrile, polyvinylidene fluoride, etc. It is done.

  As described above, since the partition member for a total heat exchange element according to this embodiment can improve the moisture permeability, the total heat used for the total heat exchange element, the total heat exchange type ventilator, and the like. It is useful as a partition member for an exchange element.

DESCRIPTION OF SYMBOLS 1 House 2 Total heat exchange type ventilator 3 Main body case 4 Total heat exchange element 5 Fan 6 Inside air port 7 Exhaust port 8 Fan 9 Outside air port 10 Air supply port 11 Frame 12 Indoor air wind path rib 13 Outdoor air wind path rib 14 Partition member for total heat exchange element 15 Indoor air 16 Outdoor air 17 Extra fine fiber part 18 Porous sheet 18a Thin porous sheet 18b Thick porous sheet 19 Extra fine fiber 20 Moisture permeable part 21 Moisture permeable substance 22 Concavity and convexity part 23 Adhesive part

Claims (11)

A partition member for a total heat exchange element having an ultrafine fiber layer on the inner side and porous sheets on both outer surfaces, and impregnating or coating the ultrafine fiber layer with a moisture-permeable substance and making it insoluble in water A partition member for a total heat exchange element. 2. The partition member for a total heat exchange element, wherein one porous sheet on both outer surfaces and the other porous sheet are partially bonded to each other, and uneven portions are provided on both surfaces. The partition member for total heat exchange elements as described. As the partition member for the total heat exchange element, a porous sheet having an average pore diameter of 15 μm to 100 μm and a thickness of 20 μm to 500 μm, an average pore diameter of 0.01 μm to 10 μm, and a thickness of 0.5 μm to 20 μm The partition member for a total heat exchange element according to claim 1 or 2, wherein the ultrafine fiber layer is laminated. 4. The water-insolubilizing method for the moisture-permeable substance is obtained by impregnating or applying a hydrophilic organic low molecular weight compound and then polymerizing the polymer by polymerizing the hydrophilic low-molecular-weight compound. Partition member for total heat exchange element. The partition member for a total heat exchange element according to any one of claims 1 to 4, characterized in that a chemical having a quaternary ammonium group is used as the moisture permeable substance. 6. The total heat exchange element according to claim 1, wherein the ultrafine fiber layer and the porous sheet are bonded by an adhesive portion, and the adhesive portion has water resistance and moisture permeability. Partition member. The partition member for a total heat exchange element according to any one of claims 1 to 6, wherein the bonding method between the porous sheets on both outer surfaces is thermocompression bonding by hot embossing. The partition member for a total heat exchange element according to claim 1, wherein the porous sheet includes core-sheath fibers coated with a resin having water resistance and moisture permeability. The partition for a total heat exchange element according to claim 1, wherein the thickness of the other porous sheet is smaller than the thickness of the one porous sheet on both outer surfaces as the partition member for the total heat exchange element. Element. The total heat exchange element using the partition member for total heat exchange elements as described in any one of Claims 1-9. A total heat exchange type ventilator using the total heat exchange element according to claim 10.

Images