JP2019060582A - Partition member for total heat exchange element, total heat exchange element using partition member for total heat exchange element, and total heat exchange type ventilation device - Google Patents

Abstract

To provide a total heat exchange element having a low pressure loss while maintaining high total heat exchange efficiency, and a total heat exchange type ventilation device using the total heat exchange element.SOLUTION: The present invention provides a partition member having hydrophilic fibers, where, the fibers of the partition member are arranged in different directions so that their alignment directions cross each other.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a partition member for total heat exchange element using a heat transfer plate having heat conductivity and moisture permeability, a total heat exchange element using the same, and a total heat exchange ventilator using the total heat exchange element It is a thing.

  Heretofore, as a device capable of ventilating without impairing the effects of cooling and heating, a total heat exchange type ventilator that performs heat exchange between air supply and exhaust during ventilation is known.

  The total heat exchange element performs heat exchange between the air supply and the exhaust inside the heat exchange type ventilation equipment, and as the heat exchange efficiency of the total heat exchange element is better, more heat can be recovered from the exhaust to the air supply As it can, many ideas have been proposed to improve the heat exchange efficiency of all heat exchange elements.

  Generally, the heat exchange efficiency is improved by increasing the volume of the total heat exchange element. However, in areas such as Japan, China, and Europe, there is not enough space for installing a heat exchange type ventilation device such as a basement room or a machine room inside a house, so it is required to make the size of the device itself compact. Therefore, the problem is how to improve the heat exchange efficiency while keeping the volume of all the heat exchange elements small.

  As a conventional total heat exchange element of this type, there is known one in which a heat transfer plate inside the total heat exchange element is corrugated (see, for example, Patent Document 1).

  Hereinafter, the total heat exchange element will be described with reference to FIG. FIG. 11 is a perspective view showing the appearance of a conventional total heat exchange element 101. As shown in FIG.

  As shown in FIG. 11, the total heat exchange element 101 is formed by laminating a sheet 102 for total heat exchange element made of hydrophilic cellulose fiber and a spacing member 103 with a waveform to form an exhaust air passage 104 and an air supply air passage 105. ing. The surface of the total heat exchange element sheet 102 has corrugated irregularities, and the arrangement direction of the corrugated unevenness of the surface of the total heat exchange element sheet 102 and the wave direction arrangement of the spacing member 103 to be laminated The corrugated plates are stacked so that the direction is parallel to each other, and a plurality of corrugated plates are stacked, and the arrangement directions of the corrugating members 103 of adjacent corrugated plates intersect each other It is a laminated shape.

  The surface area of the total heat exchange element sheet 102 is larger than that of a flat sheet because of the corrugation, and the heat transfer coefficient is increased because the turbulent flow component is increased. The heat exchange efficiency can be higher with the same volume than when the sheet 102 is flat.

JP-A-5-223486

  As described in the conventional example, the sheet for total heat exchange element is composed of hydrophilic cellulose fibers, and when heat exchange is performed by air supply and exhaust, the sheet for total heat exchange element absorbs moisture when it is absorbed. Swells and stretches, and conversely, when moisture is released (dried), the cellulose fiber shrinks and shrinks, and the size of the total heat exchange element sheet changes. Generally, since the sheet for total heat exchange elements which consists of cellulose fibers used for all the heat exchange elements is manufactured by the papermaking method, it is arranged so that the direction of a cellulose fiber follows a production direction. The direction in which the cellulose fibers grow is also produced by being aligned in one direction according to the direction in which the cellulose fibers are produced, since the direction in which the cellulose fibers absorb moisture is approximately perpendicular to the fiber direction of cellulose. Align in a direction substantially perpendicular to the Due to this phenomenon, the surface area of the sheet for all heat exchange elements is flat by providing the corrugated unevenness formed on the sheet for all heat exchange elements in a substantially perpendicular direction to the air flow flowing inside the total heat exchange element Because the wind is disturbed due to the unevenness, the wind speed in the vicinity of the total heat exchange element sheet is increased, the temperature boundary layer can be formed thin, and the heat transfer coefficient is increased. Due to these synergistic effects, the heat exchange efficiency can be increased by providing the corrugated irregularities formed on the sheet for all heat exchange elements in the substantially perpendicular direction with respect to the air flow flowing inside the all heat exchange elements.

  On the other hand, when the air flow flowing inside the heat exchange element having the corrugated unevenness is rapidly expanded when flowing from the convex portion to the concave portion, a reverse flow region is generated to increase the pressure loss of all the heat exchange elements. there were. Furthermore, as a method of reducing pressure loss, there is a method of suppressing unevenness, but with this method, there is a problem that the heat transfer area of all the heat exchange elements can not be obtained and the heat exchange efficiency is lowered.

  Therefore, the present invention improves the above-mentioned problems, and while maintaining high heat exchange efficiency, suppresses pressure loss due to a reverse flow region caused by rapid expansion of air flow with respect to asperities formed on a sheet for all heat exchange elements. It is an object of the present invention to provide a total heat exchange type ventilation system using the total heat exchange element and the total heat exchange element.

  And in order to achieve this object, the present invention is a partition member for all heat exchange elements provided with hydrophilic fibers, and provided in different directions so that the orientation directions of the fibers of the partition member intersect. To achieve the intended purpose.

  The present invention is a partition member for total heat exchange element provided with hydrophilic fibers, characterized in that it is provided in different directions so that the orientation directions of the fibers of the partition member intersect. Depending on the configuration, the surface area can be expanded when moisture is absorbed, and high overall heat exchange efficiency can be ensured. Furthermore, since the irregularities formed when the fiber absorbs moisture and extends have a plurality of directions, an air flow along the respective irregularities is generated inside the entire heat exchange element. Since the wind is disturbed by the unevenness, the wind velocity in the vicinity of the total heat exchange element sheet is increased, the temperature boundary layer can be formed thin, and the heat transfer coefficient can be enhanced.

  Furthermore, since the fibers are provided in different directions so that the orientation directions of the fibers of the partition member intersect, the irregularities formed when the fibers absorb moisture and extend are formed to intersect. With this configuration, a part of the air flow over the asperities moves along the surface of the plurality of intersecting asperities, thereby suppressing air flow disturbance (backflow) caused by rapid expansion of the air path when overcoming the asperities. Therefore, the pressure loss can be reduced, and the partition member can be efficiently blown.

  Therefore, by using the partition member of the present invention, it is possible to obtain a total heat exchange element capable of suppressing a pressure loss and a total heat exchange ventilator using the total heat exchange element.

Schematic diagram showing an installation example of the total heat exchange type ventilation device according to the first embodiment of the present invention Diagram showing the structure of the total heat exchange type ventilation system The perspective view which shows the total heat exchange element of the same total heat exchange type ventilator An exploded perspective view showing the total heat exchange element of the same total heat exchange ventilator The schematic plan view which shows the fiber direction of the partition member for total heat exchange elements of the same total heat exchange type ventilator Schematic perspective view showing a partition member for total heat exchange element of the same total heat exchange type ventilation device An enlarged plan view showing the flow of wind passing through the surface of the total heat exchange element partition member of the same total heat exchange ventilator (A) A schematic sectional view showing the flow of wind passing through the surface of the total heat exchange partition member of the total heat exchange element of the same total heat exchange ventilator, (b) for the total heat exchange of the conventional total heat exchange element Schematic sectional view showing the flow of wind passing through the surface of the partition member The schematic plan view which shows the fiber direction of the partition member for total heat exchange elements of the same total heat exchange type ventilator Schematic sectional view showing an air passage for total heat exchange element of the same total heat exchange ventilator Schematic sectional view showing a conventional total heat exchange element

  The total heat exchange element according to claim 1 of the present invention is a partition member provided with hydrophilic fibers, and has a configuration in which the fibers are provided in different directions so as to cross each other.

  As a result, when the partition member absorbs moisture, the moisture is held between the fibers, so that it spreads in the direction orthogonal to the orientation direction of the fibers, and the surface area of the partition member can be expanded to ensure high total heat exchange efficiency. . Furthermore, when the partition member absorbs moisture and extends, the unevenness direction is formed to cross because the fibers are formed in different directions so that the orientation directions of the fibers cross. An air flow along the unevenness is generated inside the total heat exchange element. Since the wind is disturbed by the intersecting unevenness, the wind speed in the vicinity of the partition member is increased, the temperature boundary layer can be thinned, and the heat transfer coefficient can be enhanced. In addition, since part of the air flow over the asperities moves along the ridge line connecting the plurality of intersecting asperities, it is possible to suppress air flow disturbance (backflow) caused by rapid expansion of the air path when overcoming asperities. Therefore, the pressure loss can be reduced.

  Moreover, it is good also as a structure provided with multiple crossing of the orientation direction of the fiber of a partition member. As a result, when the partition material absorbs moisture and extends, a wedge-shaped unevenness which is continuously bent which is the intersection of the orientation direction is formed on the entire partition member. Therefore, since the flow (backflow) of the air flow which arises by sudden expansion of a wind path can be suppressed when overcoming the unevenness of the whole wind path, the effect that the pressure loss of the whole wind path can be reduced is produced.

  Further, different directions may be provided such that the orientation direction of the fibers of the partition member intersects at an angle of 20 degrees or more and 160 degrees or less. As a result, since the wind along the convex portion of the partition member is increased by the angle of the intersecting unevenness being 20 degrees or more and 160 degrees or less with respect to the flowing direction of the air flow, the air flow (backflow) generated by rapid expansion It is possible to effectively suppress the pressure loss of the entire air passage and to reduce the pressure loss more effectively.

  Further, the pair of partition members are arranged to provide an air passage via the holding ribs, and the plurality of partition members and the plurality of holding ribs constitute a total heat exchange element so that the air passages are stacked. The wave height when expanded due to moisture absorption may be 5% to 50% of the height in the stacking direction of the air passage. As a result, the surface area can be expanded while maintaining the height in the stacking direction of the air passage, so that it is possible to provide a partition member of high heat transfer performance while suppressing the pressure loss in the air passage of all heat exchange elements. Play.

  Further, the partition member having the above-mentioned feature may be used as the total heat exchange element. With this configuration, it is possible to obtain the total heat exchange element having low pressure loss and high heat exchange efficiency.

  Further, the total heat exchange type ventilation device may be configured to use the total heat exchange element of the above-mentioned feature. With this configuration, it is possible to use a total heat exchange element having a low pressure loss and high heat exchange efficiency, thereby reducing the power of the fan and obtaining a total heat exchange ventilator with high energy recovery.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention. Moreover, the same reference numerals are given to the same parts throughout the drawings, and the description is omitted. Further, the details of each part not directly related to the present invention will not be described in each drawing in order to avoid duplication.

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

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

  For example, indoor winter (hereinafter referred to as indoor air 13) is released to the outside through a total heat exchange ventilator 2 as indicated by a black arrow, for example, in winter in Japan.

  Also, outdoor air (hereinafter referred to as outdoor air 14) is introduced into the room through the total heat exchange ventilator 2 as indicated by the white arrows.

  And while ventilating by this, at the time of this ventilation, the heat of the indoor air 13 to be released is transmitted to the outdoor air 14 which takes in indoors, and the discharge of unnecessary heat is suppressed.

  As shown in FIG. 2, the total heat exchange type ventilation device 2 arranges the total heat exchange element 4 in the main body case 3 and drives the exhaust fan 5 to suck the indoor air 13 from the inner air port 6, thereby total thermal energy. The air is discharged to the outside from the exhaust port 7 via the exchange element 4 and the exhaust fan 5.

  Further, by driving the air supply fan 8, the outdoor air 14 is sucked from the outside air port 9 and taken in from the air supply port 10 indoors via the total heat exchange element 4 and the air supply fan 8. .

  Further, as shown in FIG. 3 and FIG. 4, the total heat exchange element partition member 12 is integrally bonded to a frame provided with a plurality of space holding ribs 11 at predetermined intervals, as shown in FIGS. 3 and 4. It is the composition which stacks the thing. That is, the partition members 12 for all heat exchange elements are stacked at intervals held by the spacer 11. Indoor air 13 and outdoor air 14 are alternately flowed through the space between the total heat exchange element partition members 12 stacked at intervals. Heat exchange and water exchange are performed by flowing the indoor air 13 and the outdoor air 14 with the total heat exchange element partition member 12 interposed therebetween.

  In winter, the indoor air 13 is in a state containing moisture from heating, human exhalation, etc., and the outdoor air 14 is in a dry state. The indoor air 13 and the outdoor air 14 flow on both sides of the total heat exchange element partition member 12 so that the heat of the indoor air 13 is transmitted to the outdoor air 14 by the heat transfer via the total heat exchange element partition member 12 Be Further, the moisture of the indoor air 13 is transferred to the outdoor air 14 by the moisture transmission through the total heat exchange element partition member 12.

  In the present embodiment, as shown in FIG. 5, the total heat exchange element partition member 12 includes the cellulose fiber 15 which is a hydrophilic fiber, and the cellulose fiber 15 of the total heat exchange element partition member 12 is It has a configuration in which alignment directions are provided in different directions so as to cross each other.

  Generally, the partition member 12 for total heat exchange elements which consists of the cellulose fiber 15 used for the total heat exchange element 4 is manufactured by the papermaking method. In this manufacturing method, in the process of dewatering from the cellulose fiber 15 suspended in the aqueous solution, the suspended cellulose solution is spread on a belt conveyor net, and the action of gravity and the pressing process are performed while advancing the belt conveyor. The sheet is formed through a heating process. At this time, in order to move the belt conveyor at a high speed while developing the cellulose fibers 15 into the net, the orientation direction of the cellulose fibers 15 is disposed along the traveling direction of the belt conveyor, and when dried, the orientation direction of the cellulose fibers 15 Is one way. Here, for example, the following steps may be mentioned in order to provide a plurality of cellulose fibers so that the orientation directions of the cellulose fibers intersect.

  For example, in the process of dewatering the cellulose fibers 15 suspended in the aqueous solution as in the paper making process of Japanese paper, when developing the aqueous solution onto the netting, the netting is performed in a direction substantially perpendicular to the generation direction of the cellulose fibers 15 By moving, the fiber direction can be provided in two directions.

  Further, for example, by shortening the long side length of the fiber piece of the cellulose fiber 15 to be suspended in advance, the dispersibility of the cellulose fiber 15 in the aqueous solution is improved, and the fiber direction of the cellulose fiber 15 after dehydration is dispersed. Multiple fiber directions can be provided.

  Furthermore, it is not a wet process using the above aqueous solution used for papermaking, but a dry production process as a total heat exchange element partition member 12 using a fiber called cellulose that is obtained by dissolving cellulose once in a solvent and regenerating it. It is good also as a nonwoven fabric which consists of cellulose fiber 15 by this. As a dry production method, known methods such as a needle punch method and a chemical bond method may be mentioned, and in these production methods, fibers are less likely to move during production compared to a wet papermaking method, so the fiber direction is more than one It is known to have a direction.

  With this configuration, when the total heat exchange element partition member 12 absorbs moisture, as shown in FIG. 6, asperities consisting of ridges 20 and depressions 21 like ridges in different orientation directions so that the cellulose fibers 15 intersect. Can be provided. Therefore, as shown in FIG. 7, the air flow 16 flowing in the air flow direction on the total heat exchange element partition member 12 is bent along the convex portion 20 and passes over the convex portion 20 in the concave portion 21 direction. An air flow is generated. Therefore, as shown in FIG. 8 (a), the air flow 16 which flows when the total heat exchange element partition member 12 has a wedge-shaped unevenness is an air having a conventional uneven shape as shown in FIG. 8 (b). Since the air flow 16 flowing from the convex portion 20 to the concave portion 21 with respect to the flow 16 has a gentle unevenness and the reverse flow region 17 generated due to the rapid expansion does not occur, the pressure loss can be suppressed. Furthermore, since the unevenness such as a wedge shape is provided, it is possible to suppress the deviation of the air flow as compared with the case where the unevenness is present in one direction. Furthermore, since the air flow 16 flows along the ridge-shaped unevenness and the wind is disturbed by the ridge-shaped unevenness, the wind speed in the vicinity of the total heat exchange element partition member 12 is increased, and the temperature boundary layer can be formed thin. It is possible to increase the rate. Furthermore, since the partition member 12 for all heat exchange elements is provided with a wedge-shaped unevenness, the surface area can be expanded, and the heat exchange efficiency can be improved.

  Therefore, while suppressing the pressure loss, the surface area can be expanded, and the heat exchange efficiency can be improved. Furthermore, by providing the three-dimensional waveform by providing the wedge-shaped unevenness, the partition member 12 for all heat exchange elements as compared with the structure having a two-dimensional waveform (concave and convex of the conventional total heat exchange element). It is possible to increase the rigidity of the air flow path and to suppress the deflection of the total heat exchange element partition member 12 caused by the pressure difference between the air supply path and the exhaust air path, and to suppress the pressure loss due to the air path obstruction. As a result, it is possible to obtain the total heat exchange element partition member 12 with high heat transfer performance while suppressing the pressure loss.

  Moreover, as shown in FIG. 9, it is good also as a structure provided so that the orientation direction of the fiber of the partition member 12 for all heat exchange elements may cross | intersect. At this time, the fiber orientations intersect so as to be continuous along the extending direction of the total heat exchange element partition member 12.

  With this configuration, when the fibers of the total heat exchange element partition member 12 absorb moisture and extend, the fibers are continuously oriented in the direction of orientation, so that the bent unevenness is formed in the total heat exchange element partition member 12 It is formed. Therefore, the partition member 12 for all heat exchange elements provided with the unevenness | corrugation which bent in all the air paths between the ribs holding the spacing plate of all the partition members 12 for heat exchange elements can be formed. As a result, since there is unevenness which is uniformly bent on the total heat exchange element partition member 12, it is possible to eliminate the bias of the air flow flowing inside the total heat exchange element 4, and therefore, it is possible to exchange heat efficiently. Furthermore, as described above, since the reverse flow region 17 caused by the rapid expansion does not occur, the total heat exchange element partition member 12 with high heat transfer performance can be obtained while suppressing the pressure loss.

  Examples of the method of continuously changing the fiber direction of the cellulose fiber 15 include the following examples of wet papermaking. In the process of developing the aqueous solution of cellulose fiber 15 onto the net, it is possible to change the orientation direction of cellulose fiber 15 in a direction different from the production direction by moving the net in a direction different from the production direction at regular intervals. . By this process, the orientation direction of the cellulose fiber 15 is configured to be continuously bent with respect to the generation direction. Here, as a method of moving the net in different directions at regular intervals, there is a method of vibrating the net, a method of adding the net by a high water pressure jet flow, and the like.

  In addition, two or more different orientation directions of the fibers of the total heat exchange element partitioning member 12 may be provided so as to intersect such different orientation directions to form an angle of 20 degrees or more and 160 degrees or less. .

  With this configuration, the unevenness becomes gentle in the flow direction of the air flow, so that the reverse flow area caused by the rapid expansion can be effectively suppressed, and the total heat exchange element with high heat transfer performance while suppressing the pressure loss. The partition member 12 can be obtained. When the crossing angle in the orientation direction is less than 20 degrees, even if there are two or more different orientation directions of the fibers, the concavities and convexities formed when the orientation directions of the fibers intersect are characteristics similar to concavities and convexities having a single direction. It becomes. In addition, when the crossing angle in the alignment direction exceeds 160 degrees, the concavities and convexities heading in a plurality of directions are similarly synthesized, and the characteristic is similar to the concavo-convex having a single direction. Therefore, when the fiber direction of the cellulose fiber 15 becomes an angle of 20 degrees or more and 160 degrees or less, the back flow area can be suppressed more effectively, and high heat transfer performance can be exhibited while suppressing pressure loss. It is.

  Further, as shown in FIG. 10, the wave height 18 which is the distance from the reference surface of the ridge-shaped unevenness formed by the total heat exchange element partition member 12 is the air passage height in the lamination direction of the air supply air passage and the exhaust air passage. It may be configured to be 5% or more and 50% or less of 19.

  With this configuration, the surface area can be expanded while securing the air passage height 19, so that the pressure loss in the air passage of the total heat exchange element 4 is suppressed, and the partition member 12 for the total heat exchange element with high heat transfer performance is used. You can get it. When the wave height 18 is less than 5% with respect to the air passage height 19, the gas passing through the air passage is hardly affected by the unevenness of the total heat exchange element partition member 12 which becomes the wall surface, and the heat exchange efficiency is improved. Hard to get. In addition, when the wave height 18 exceeds 50% with respect to the air passage height 19, the air passage cross section seen from the ventilation direction is closed due to the unevenness, and the pressure loss of the total heat exchange element 4 increases.

  Further, the total heat exchange element partition member 12 having the above-described configuration may be used as the total heat exchange element 4. With this configuration, it is possible to obtain the total heat exchange element 4 having a low pressure loss and high heat exchange efficiency.

  Further, the total heat exchange type ventilation device 2 may be configured to use the total heat exchange element 4 of the above configuration. With this configuration, it is possible to use the total heat exchange element 4 having a low pressure loss and high heat exchange efficiency, so it is possible to reduce the power of the fan and obtain the total heat exchange ventilator 2 with a high energy recovery rate. .

  The material of the total heat exchange element partition member 12 is desirably a thin material in order to ensure a high heat transfer rate and moisture transfer rate, and desirably has a thickness of 10 μm to 150 μm. If the thickness is less than 10 μm, the strength as the total heat exchange element partition member 12 is insufficient, and the air path of the total heat exchange element 4 is narrowed due to the pressure difference of the gas that ventilates the total heat exchange element 4; The pressure loss of the element 4 is increased. Also, if the thickness exceeds 150 μm, the moisture permeation performance required as the total heat exchange element partition member 12 is lowered, and the heat exchange efficiency is lowered.

  The material of the total heat exchange element partition member 12 may be any material as long as it expands by moisture absorption, and examples thereof include materials such as paper, nylon, and rayon.

  The total heat exchange element partition member 12 may be manufactured by a paper making method as described above. By doing so, it has the property of strongly shrinking when drying cellulose, and a dense layer can be formed, and high gas barrier properties can be obtained. Furthermore, since the papermaking method is a highly productive method, it can be produced at low cost.

  The material of the total heat exchange element partition member 12 may be a non-woven fabric layer made of cellulose fibers, and the average pore diameter may be 0.005 μm or more and 0.5 μm or less. By doing so, high gas barrier properties can be exhibited. The gas barrier property can be evaluated by, for example, an air permeability such as Gurley value (JIS-P8117). For example, if it is 3000 seconds / 100 cc or more, a necessary ventilation amount can be secured.

  The material of the total heat exchange element partition member 12 is preferably made by impregnating a nonwoven fabric layer made of cellulose fiber with a highly hygroscopic substance such as lithium salts. By doing so, high moisture transmission can be obtained.

  In the present embodiment, the total heat exchange element 4 of the counterflow having a hexagonal shape has been described, but with the total heat exchange element 4 being a square shape, the exhaust air passage and the supply air passage are orthogonal to each other or diagonally Similar effects can be obtained with the intersecting shapes.

  In addition, the space | interval rib 11 with which all the heat exchange elements 4 are equipped should just be a shape which can maintain space | interval, and can use a corrugated plate etc. besides a square pillar type shown in this Embodiment. In order to suppress shape deformation due to expansion and contraction of the total heat exchange element partition member 12, the space rib 11 is preferably made of a material having low hygroscopicity and high rigidity. For example, the material of the space rib 11 may be plastic or metal. When the space rib 11 is formed of plastic, inserting the total heat exchange element partition member 12 into a mold and forming it by integral molding by insert injection molding using resin can improve productivity, which is preferable. .

  As described above, since the partition member for total heat exchange element according to the present embodiment can suppress pressure loss while maintaining high heat exchange efficiency, the total heat exchange element, the total heat exchange type ventilator It is useful as a partition member for total heat exchange elements used for etc.

DESCRIPTION OF SYMBOLS 1 house 2 total heat exchange type ventilation device 3 main body case 4 total heat exchange element 5 exhaust fan 6 inside air opening 7 exhaust opening 8 air supply fan 9 outside air opening 10 air intake opening 11 interval maintaining rib 12 partition member for total heat exchange element 13 Indoor air 14 Outdoor air 15 Cellulose fiber 16 Air flow 17 Backflow area 18 Wave height 19 Airway height 20 Convex part 21 Concave part

Claims (6)

A partition member comprising hydrophilic fibers, wherein the orientation directions of the fibers of the partition member intersect with each other. The partition member for total heat exchange elements according to claim 1, wherein a plurality of the intersections in the orientation direction of the fibers of the partition member are provided. The partition member for total heat exchange elements according to claim 1 or 2, wherein the orientation direction of the fibers of the partition member is provided so as to intersect at an angle of 20 degrees or more and 160 degrees or less. A pair of the partition members are disposed to provide an air passage via a holding rib, and a plurality of the partition members and the plurality of holding ribs constitute a total heat exchange element so that the air passages are stacked. The wave height when the partition member is expanded due to moisture absorption is 5% or more and 50% or less of the height in the stacking direction of the air path, All the characteristics according to any one of claims 1 to 3 Total heat exchange element using a heat exchange element partition member. The total heat exchange element using the partition member for total heat exchange elements as described in any one of Claim 1 to 3. A total heat exchange ventilator using the total heat exchange element according to claim 4 or 5.