JP3115169U - Total heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a total heat exchanger capable of preventing air leakage.
SOLUTION: The top of an isosceles triangle of an elongated hexagon 14 in which an isosceles triangle having a short side as a base is continuously connected to each of two short sides of a rectangle is cut off with a side 16 cut off. A partition film 1 having heat conductivity and moisture permeability formed in an elongated octagon 17 as a whole, a rectangular long side 18 of the partition film 1, an oblique side 19 of an isosceles triangle, and a cut-off side 16 are continuously fixed. A part of the air supply flow path 2 is formed with a pair of frame members 8 disposed at point-symmetric positions and a reinforcing member 9 fixed between the partition film 1 and disposed between the pair of frame members 8. A first unit member C to be formed is provided. A second unit that is formed by fixing the pair of frame members 8 and the reinforcing member 9 to the partition film 1 so as to be in a line-symmetrical position with respect to the first unit member C and that forms a part of the exhaust passage 3 A member is provided. The air supply passage 2 and the exhaust passage 3 are formed by alternately laminating the first unit member C and the second unit member vertically.
[Selection] Figure 4

Description

  The present invention relates to a total heat exchanger.

  Generally, the total heat exchanger has an air supply passage and an exhaust passage that are partitioned by a partition membrane (see, for example, Patent Document 1).

However, as shown in FIG. 17, the shape in plan view has a triangular portion 40, and one side 43 of the supply air passage and one side 44 of the exhaust flow passage are formed on the adjacent two sides 41 and 42. The partition plate 47 for partitioning the air supply channel 45 and the exhaust channel 46 is configured to linearly contact the apex 48 formed by the two adjacent sides 41 and 42, and the total heat exchanger 49 There is a drawback that air leaks as shown by arrows f and g in FIG.
JP 2000-146468 A

  The problem to be solved is that air leaks between the total heat exchanger and the partition plate.

  Therefore, the total heat exchanger according to the present invention is provided with a partition film having heat conductivity and moisture permeability, and the air passing through the air supply passage and the air passing through the exhaust passage flow in parallel and opposite directions to each other. A flow portion, and a cross flow portion in which the air passing through the air supply flow passage and the air passing through the exhaust flow passage intersect when viewed from a direction orthogonal to the partition film, and the counter flow portion The width dimension W and the length dimension L are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W.

  In addition, the top of the above-mentioned isosceles triangle in the shape of an elongated hexagon in which two isosceles triangles with the short side as a base are continuously connected to each of the two short sides of the rectangle is cut off with the sides to cut the whole. A partition film having heat conductivity and moisture permeability formed in an elongated octagon, and the rectangular long side of the partition film, the oblique side of the isosceles triangle, and the cut-off side are continuously fixed and point-symmetric with each other. A first unit member that forms a part of an air supply channel with a pair of frame members disposed on the reinforcing film and a reinforcing member that is fixed to the partition film and disposed between the pair of frame members. And a second unit member that is formed by fixing the pair of frame members and the reinforcing member to the partition film so as to be in a line-symmetrical position with respect to the first unit member and forming a part of the exhaust passage The first unit member and the second unit By alternately laminating member vertically it is obtained by forming the above-mentioned inlet channel and the exhaust channel.

  In addition, the top of the above-mentioned isosceles triangle in the shape of an elongated hexagon in which two isosceles triangles with the short side as a base are continuously connected to each of the two short sides of the rectangle is cut off with the sides to cut the whole. A partition film having heat conductivity and moisture permeability formed in an elongated octagon, and the rectangular long side of the partition film, the oblique side of the isosceles triangle, and the cut-off side are continuously fixed and point-symmetric with each other. A first unit member that forms a part of an air supply channel with a pair of frame members disposed on the reinforcing film and a reinforcing member that is fixed to the partition film and disposed between the pair of frame members. And a second unit member that is formed by fixing the pair of frame members and the reinforcing member to the partition film so as to be in a line-symmetrical position with respect to the first unit member and forming a part of the exhaust passage The first unit member and the second unit The members are alternately stacked on top and bottom to form the air supply passage and the exhaust passage, and the air passing through the air supply passage and the air passing through the exhaust passage are parallel and opposite to each other A counterflow portion that flows in the direction, and an airflow that passes through the air supply passage and an airflow that passes through the exhaust passage and intersects when viewed from a direction orthogonal to the partition film, The width dimension W and the length dimension L of the counterflow portion are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W.

  In addition, a rectangular partition film having heat transfer properties and moisture permeability, and a pair of frame members that are continuously fixed to a part and a short side of the long side of the rectangle of the partition film and arranged in point-symmetric positions with respect to each other And a reinforcing member fixed to the partition film and disposed between the pair of frame members, and a first unit member forming a part of the air supply flow path, and the pair of frame members and the reinforcing member And a second unit member that forms a part of the exhaust flow path, and is fixed to the partition film so as to be in a line-symmetrical position with the first unit member. The second unit members are alternately stacked on top and bottom to form the air supply flow path and the exhaust flow path, and the air passing through the air supply flow path and the air passing through the exhaust flow path mutually A counterflow section that flows in parallel and in the opposite direction, and the air supply A cross flow portion in which the air passing through the passage and the air passing through the exhaust flow passage intersect each other when viewed from a direction orthogonal to the partition film, and the width dimension W and length of the counter flow portion The dimension L is set to satisfy 2.0 × W ≦ L ≦ 4.5 × W.

  Further, a partition film having heat conductivity and moisture permeability formed by cutting off four corners of a rectangle with a corner cut edge to form an elongated octagon as a whole, the long side of the rectangle, the corner cut edge and the rectangle of the partition film A pair of frame members that are continuously fixed to the short side of each other and disposed at point-symmetrical positions, and a reinforcing member that is fixed to the partition film and disposed between the pair of frame members. A first unit member that forms part of the air supply flow path is provided, and the pair of frame members and the reinforcing member are fixed to the partition film so as to be in a line-symmetrical position with respect to the first unit member. A second unit member that forms a part of the exhaust flow path, and the first unit member and the second unit member are alternately stacked vertically to form the air supply flow path and the exhaust flow path. Furthermore, the air passing through the air supply flow path and the top The counter flow portion in which the air passing through the exhaust passage flows in parallel and opposite directions, and the air passing through the air supply passage and the air passing through the exhaust passage are viewed from a direction orthogonal to the partition film. A cross flow portion flowing in a crossing manner, and the width dimension W and the length dimension L of the counter flow section are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W.

  In addition, a plurality of baffle members that generate a flow having a velocity component in a direction approaching or separating from the partition film are disposed in the counterflow portion in a direction orthogonal to the flow.

  According to the total heat exchanger of the present invention, air leakage can be prevented. In addition, sufficient heat exchange can be performed and the apparatus can be installed in a compact installation space.

  FIG. 1 shows a use state of the first embodiment of the present invention. The wall Z that separates the room X and the outdoor Y is provided with a casing 25 having a total heat exchanger H therein. A shows the flow of supply air, and B shows the flow of exhaust air. That is, the supply air flows into the total heat exchanger H from the supply air inlet 10 and flows out into the room X from the supply air outlet 20. Further, the exhaust air flows into the total heat exchanger H from the exhaust inlet 11 and flows out to the outdoor Y from the exhaust outlet 21.

  Specifically, an air supply fan 22 and an exhaust fan 23 are mounted in the casing 25, and a filter 24 is provided in the vicinity of the indoor X side inlet 26a and in the vicinity of the outdoor Y side inlet 26b. It is attached. Further, the air supply fan 22 is arranged to blow air toward the air supply inlet 10 of the total heat exchanger H, and the exhaust fan 23 is arranged so as to suck air from the exhaust outlet 21. 20 indicates an air supply outlet. 11 indicates an exhaust inlet. In the casing 25, a plurality of partition plates 30 are provided in order to pass the total heat exchanger H without mixing the supply air and the exhaust air.

  FIG. 2 shows the total heat exchanger H. In the total heat exchanger H, the air supply flow path 2 and the exhaust flow path 3 are partition films 1 made of a thin film mainly composed of pulp or a foil film mainly composed of synthetic resin, which has heat transfer and moisture permeability. Are alternately formed in a stacked manner. Specifically, as shown in FIGS. 2 and 3, a first unit member C and a second unit member D, which will be described later, are alternately stacked vertically to form an air supply passage 2 and an exhaust passage 3. ing.

  In FIG. 4, A indicates the flow of air (supply air) passing through the supply air flow path 2, and B indicates the flow of air (exhaust air) passing through the exhaust flow path 3. That is, the total heat exchanger H has the counterflow part 4 in which the supply air and the exhaust air flow in parallel and in opposite directions, and the supply air and the exhaust air are separated at both ends of the counterflow part 4. Cross flow portions 5 and 5 that cross and flow when viewed from a direction orthogonal to the film 1 (in plan view) are provided.

  The width dimension W and the length dimension L of the counterflow portion 4 are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. When L <2.0 × W, sufficient heat exchange cannot be performed. In the case of 4.5 × W <L, the whole becomes unnecessarily long and requires a large installation space.

  The first unit member C is provided with a partition film 1, a pair of plastic frame members 8, and a plastic reinforcing member 9 fixed to the partition film 1 and disposed between the pair of frame members 8. A part of the air flow path 2 is formed.

  The partition film 1 is formed in a shape as shown in FIG. That is, the partition film 1 is an isosceles triangle 13 of an elongated hexagon 14 in which an isosceles triangle 13 having a short side 7 as a base 12 is integrally connected to each of two short sides 7 and 7 of a rectangle 6. The top 15 is cut off with a side 16 to form an elongated octagon 17 as a whole.

  As shown in FIGS. 3 to 5, the pair of frame members 8 are continuously fixed to the long side 18 of the rectangle 6 of the partition film 1, the oblique side 19 of the isosceles triangle 13, and the cut-off side 16, and They are arranged at symmetrical positions. The cross-sectional shape of the frame member 8 is a square.

  As shown in FIG. 6, the second unit member D is formed by fixing the pair of frame members 8 and the reinforcing member 9 to the partition film 1 so as to be in a line symmetrical position with the first unit member C. A part of the exhaust passage 3 is formed.

  As described above, the air supply channel 2 is formed by the partition film 1 of the first unit member C, the frame member 8, the reinforcing member 9, and the partition film 1 of the second unit member D. The exhaust passage 3 is formed by the partition film 1 of the second unit member D, the frame member 8, the reinforcing member 9, and the partition film 1 of the first unit member C.

7 and 8 show a second embodiment. The first unit member C is a pair of a partition film 1 having a rectangular shape 26, a pair of long sides 27 and a short side 28 of the rectangle 26 of the partition membrane 1 that are continuously fixed to each other and arranged in point-symmetrical positions. A part of the air supply passage 2 is formed by the frame member 8 and the reinforcing member 9 fixed to the partition film 1 and disposed between the pair of frame members 8. The second unit member D is formed by fixing the pair of frame members 8 and the reinforcing member 9 to the partition film 1 so as to be in a line-symmetrical position with respect to the first unit member C. Forming part.
Other parts of the second embodiment are the same as those of the first embodiment.

9 and 10 show a third embodiment. The first unit member C includes a partition film 1 having heat conductivity and moisture permeability formed by cutting four corners 31 of a rectangle 29 with corner cut edges 32 to form an elongated octagon 33, and a rectangle 29 of the partition film 1. A pair of frame members 8 that are continuously fixed to the long side 34, the corner cut side 32, and the short side 35 of the rectangle 29, and disposed at point-symmetrical positions, and a pair of frame members that are fixed to the partition film 1. A part of the air supply passage 2 is formed with the reinforcing member 9 disposed between the two. The second unit member D is formed by fixing the pair of frame members 8 and the reinforcing member 9 to the partition film 1 so as to be in a line-symmetrical position with respect to the first unit member C. Forming part.
Other parts of the third embodiment are the same as those of the first embodiment.

FIG. 11 shows a fourth embodiment. That is, a plurality of baffle members (deflection members, turbulence generating members) 37 that cause a flow having a velocity component V ₁ in a direction toward or away from the partition film 1 in the counterflow portion 4 are orthogonal to the flow. Arranged in the direction. Specifically, three baffle members 37 are disposed on the partition film 1 of the first unit member C, and at the middle position of the three baffle members 37 on the partition film 1 of the second unit member D. Correspondingly, two baffle members 37 are provided.

FIG. 12 shows the flow of air (supply air) flowing through the supply air flow path 2 and air (exhaust air) flowing through the exhaust flow path 3. FIG. 13 shows the velocity vector V at point P in FIG. By the baffle member 37 to be described later, the supply air and the exhaust air generate a flow having a velocity component V ₁ in a direction toward or away from the partition film 1.
Other parts of the fourth embodiment are the same as those of the first embodiment.

FIG. 14 shows a fifth embodiment. The cross-sectional shape of the baffle member 37 is formed in a substantially isosceles triangle.
Other parts of the fifth embodiment are the same as those of the first embodiment.

FIG. 15 shows a sixth embodiment. The cross-sectional shape of the baffle member 37 is formed into a substantially right-angled isosceles triangle.
Other parts of the sixth embodiment are the same as those of the first embodiment.

FIG. 16 shows a seventh embodiment. A baffle member 37 is disposed at an intermediate position in the flow thickness.
Other parts of the seventh embodiment are the same as those of the first embodiment.

The design of the present invention can be changed. For example, the cross-sectional shapes of the frame member 8 and the reinforcing member 9 may be formed in any of a rectangular shape, a circular shape, a semicircular shape, a kamaboko shape, and the like. Further, the planar view shape of the reinforcing member 9 is not limited to the illustrated shape. The number of reinforcing members 9 can be increased or decreased, and may be two or three, for example. Further, the reinforcing member 9 may be omitted.
Moreover, the planar view shape of the partition film 1 may be an oval shape or the like. Furthermore, the material of the partition film 1 may be a material that can be applied to a heat exchanger intended to recover only sensible heat.

Further, in the second embodiment and the third embodiment, the baffle member 37 as described above may be provided.
It is also preferable to integrally mold the baffle member 37 with the frame member 8 and the reinforcing member 9. Further, the interval between the baffle members 37 may be set irregularly. Further, the cross-sectional shape of the baffle member 37 may be a regular triangle or a quadrangle.

  As described above, the present invention includes the partition film 1 having heat conductivity and moisture permeability, and the air passing through the air supply passage 2 and the air passing through the exhaust passage 3 flow in parallel and opposite directions to each other. A flow portion 4 and a cross flow portion 5 in which the air passing through the air supply flow path 2 and the air passing through the exhaust flow path 3 cross each other when viewed from the direction orthogonal to the partition film 1 are provided, Since the width dimension W and the length dimension L of the portion 4 are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W, it is possible to perform sufficient heat exchange and install in a compact installation space. it can.

  Further, the top 15 of the isosceles triangle 13 of the elongated hexagon 14 in which the isosceles triangle 13 having the short side 7 as the base 12 is integrally connected to each of the two short sides 7 of the rectangle 6 is cut off. The partition film 1 having heat conductivity and moisture permeability formed as a whole in an elongated octagon 17 by cutting off 16, the long side 18 of the rectangle 6 of the partition film 1, the oblique side 19 of the isosceles triangle 13, and the cut side 16 A pair of frame members 8 that are fixed to each other in a continuous manner and arranged in point-symmetric positions with each other, and a reinforcing member 9 that is fixed to the partition film 1 and disposed between the pair of frame members 8. The first unit member C that forms a part of the air flow path 2 is provided, and the pair of frame members 8 and the reinforcing member 9 are fixed to the partition film 1 so as to be in a line symmetrical position with the first unit member C. A second unit member D that is formed and forms a part of the exhaust passage 3, and includes a first unit portion Since the air supply passage 2 and the exhaust passage 3 are formed by alternately stacking the material C and the second unit member D on the top and bottom, heat exchange efficiency can be improved and air leakage can be prevented. it can. In particular, even when the installation position of the total heat exchanger H is slightly deviated, air leakage can be prevented.

  Further, the top 15 of the isosceles triangle 13 of the elongated hexagon 14 in which the isosceles triangle 13 having the short side 7 as the base 12 is integrally connected to each of the two short sides 7 of the rectangle is cut off. The partition film 1 having heat conductivity and moisture permeability formed as an elongated octagon 17 as a whole, the long side 18 of the rectangle 6, the oblique side 19 of the isosceles triangle 13, and the cut side 16 are formed. A pair of frame members 8 that are fixed in a continuous manner and arranged at point-symmetric positions with each other, and a reinforcing member 9 that is fixed to the partition film 1 and disposed between the pair of frame members 8. A first unit member C that forms part of the path 2 is provided, and a pair of frame members 8 and a reinforcing member 9 are fixed to the partition film 1 so as to be in a line-symmetrical position with respect to the first unit member C. And a second unit member D that forms part of the exhaust passage 3, and includes a first unit member C and the second unit member D are alternately stacked on top and bottom to form an air supply passage 2 and an exhaust passage 3, and further, air passing through the air supply passage 2 and air passing through the exhaust passage 3 Cross flow in which the counter flow part 4 flowing in parallel and opposite to each other, and the air passing through the air supply flow path 2 and the air passing through the exhaust flow path 3 cross each other when viewed from a direction perpendicular to the partition film 1 And the width dimension W and the length dimension L of the counterflow section 4 are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W, so that the heat exchange efficiency can be improved. Air leakage can be prevented. In particular, even when the installation position of the total heat exchanger H is slightly deviated, air leakage can be prevented. In addition, sufficient heat exchange can be performed, and the apparatus can be installed in a compact installation space.

  Further, the partition film 1 of the rectangle 26 having heat conductivity and moisture permeability, and a part of the long side 27 and the short side 28 of the rectangle 26 of the partition film 1 are continuously fixed to each other and arranged at point-symmetrical positions. A first unit member C that forms a part of the air supply passage 2 with a pair of frame members 8 and a reinforcing member 9 that is fixed to the partition film 1 and disposed between the pair of frame members 8 is provided. In addition, the pair of frame members 8 and the reinforcing member 9 are fixed to the partition film 1 so as to be in a line-symmetrical position with respect to the first unit member C, and a part of the exhaust passage 3 is formed. The two unit members D are provided, the first unit members C and the second unit members D are alternately stacked on top and bottom to form the air supply passage 2 and the exhaust passage 3, and further pass through the air supply passage 2. A counter flow section 4 in which air and air passing through the exhaust flow path 3 flow in parallel and in opposite directions, A cross flow portion 5 in which air passing through the flow path 2 and air passing through the exhaust flow path 3 cross each other when viewed from a direction perpendicular to the partition film 1 is provided, and the width dimension W of the counter flow portion is Since the length dimension L is set to satisfy 2.0 × W ≦ L ≦ 4.5 × W, the heat exchange efficiency can be improved and air leakage can be prevented. In particular, even when the installation position of the total heat exchanger H is slightly deviated, air leakage can be prevented. Moreover, material loss can be reduced during manufacturing. In particular, it is suitable for large-sized products for business use. In addition, sufficient heat exchange can be performed and the apparatus can be installed in a compact installation space.

  Further, the partition film 1 having heat conductivity and moisture permeability formed by cutting the four corners 31 of the rectangle 29 with the corner cut edges 32 to form an elongated octagon 33 as a whole, and the long sides 34 and corners of the rectangle 29 of the partition film 1 A pair of frame members 8 that are continuously fixed to the cut side 32 and the short side 35 of the rectangle 29 and arranged in point-symmetrical positions with each other, and are fixed to the partition film 1 and arranged between the pair of frame members 8. And a first unit member C that forms a part of the air supply channel 2 with the reinforcing member 9 provided, and the pair of frame members 8 and the reinforcing member 9 are in a line-symmetrical position with respect to the first unit member C. The second unit member D is formed so as to be fixed to the partition film 1 and forms a part of the exhaust passage 3, and the first unit member C and the second unit member D are alternately turned up and down. The air passing through the air supply passage 2 is formed by stacking to form the air supply passage 2 and the exhaust passage 3. The counterflow portion 4 in which the air passing through the exhaust passage 3 flows in parallel and opposite directions, and the direction in which the air passing through the air supply passage 2 and the air passing through the exhaust passage 3 are orthogonal to the partition film 1 The cross flow portion 5 that flows crossing as viewed from above is provided, and the width dimension W and the length dimension L of the counter flow section 4 are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. Exchange efficiency can be improved and air leakage can be prevented. In particular, even when the installation position of the total heat exchanger H is slightly deviated, air leakage can be prevented. In addition, air can flow more smoothly as compared with a rectangular shape in plan view (for example, the second embodiment). In addition, sufficient heat exchange can be performed and the apparatus can be installed in a compact installation space.

In addition, since a plurality of baffle members 37 that generate a flow having a velocity component V ₁ in a direction approaching or separating from the partition film 1 are disposed in the counterflow portion 4 in a direction orthogonal to the flow, As a result, the boundary layer is partially thinned and the heat exchange efficiency can be improved. Moreover, since the partition film 1 can be reinforced by the baffle members 37, distortion and deformation thereof can be prevented. Further, the baffle member 37 can be integrally formed with the frame member 8 and can be easily mass-produced.

It is a top view which shows the use condition of 1st Embodiment of this invention. 1 is a perspective view showing a first embodiment of the present invention. It is a disassembled perspective view for description. It is a top view for description. It is explanatory drawing. It is a top view which shows the 2nd unit member of 1st Embodiment. It is a top view which shows the 1st unit member of 2nd Embodiment. It is a top view which shows the 2nd unit member of 2nd Embodiment. It is a top view which shows the 1st unit member of 3rd Embodiment. It is a top view which shows the 2nd unit member of 3rd Embodiment. It is an exploded perspective view for explanation showing a 4th embodiment. It is a principal part expanded sectional view. It is explanatory drawing which shows a velocity vector. It is a principal part expanded sectional view which shows 5th Embodiment. It is a principal part expanded sectional view which shows 6th Embodiment. It is a principal part expanded sectional view which shows 7th Embodiment. It is a cross-sectional top view which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Partition membrane 2 Air supply flow path 3 Exhaust flow path 4 Opposite flow part 5 Cross flow part 6 Rectangular 7 Short side 8 Frame member 9 Reinforcement member
12 Bottom
13 isosceles triangle
14 Elongated hexagon
15 Top
16 Cut edge
17 Elongated octagon
18 Long side
19 hypotenuse
26 rectangle
27 Long side
28 Short side
29 rectangle
31 (4) Corner
32 Corner cut edge
33 Elongated octagon
34 Long side
35 Short side
37 Baffle member C 1st unit member D 2nd unit member L Length dimension V ₁ Speed component W Width dimension

Claims (6)

Comprising a partition film (1) having heat conductivity and moisture permeability;
The counter flow portion (4) in which the air passing through the air supply passage (2) and the air passing through the exhaust passage (3) flow in parallel and in opposite directions, and the air passing through the air supply passage (2). And an airflow passing through the exhaust flow path (3) and a cross flow portion (5) flowing crossing each other when viewed from a direction orthogonal to the partition membrane (1),
A total heat exchanger characterized in that a width dimension (W) and a length dimension (L) of the counterflow portion (4) are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. Each of the two short sides (7) of the rectangle (6) has an elongated hexagon (14) in which an isosceles triangle (13) having the short side (7) as a base (12) is integrally connected. A partition film (1) having heat conductivity and moisture permeability formed by cutting the top part (15) of the isosceles triangle (13) and cutting it with a side (16) into an elongated octagon (17), and the partition The membrane (1) is continuously fixed to the long side (18) of the rectangle (6), the oblique side (19) of the isosceles triangle (13), and the cut-off side (16) and is point-symmetric with each other. An air supply flow path having a pair of frame members (8) disposed and a reinforcing member (9) fixed to the partition film (1) and disposed between the pair of frame members (8). A first unit member (C) that forms part of (2);
The pair of frame members (8) and the reinforcing member (9) are formed by being fixed to the partition film (1) so as to be in a line-symmetrical position with respect to the first unit member (C). 3) comprising a second unit member (D) forming a part of
The first unit member (C) and the second unit member (D) are alternately stacked on top and bottom to form the air supply channel (2) and the exhaust channel (3). Total heat exchanger. The above-mentioned isosceles of the elongated hexagon (14) in which two isosceles triangles (13) having the short side (7) as a base (12) are integrally connected to each of two rectangular short sides (7). A partition film (1) having heat conductivity and moisture permeability formed by cutting the top part (15) of the triangle (13) and cutting the edge (16) into an elongated octagon (17), and the partition film (1 ) Are continuously fixed to the long side (18) of the rectangle (6), the oblique side (19) of the isosceles triangle (13), and the cut-off side (16) and arranged in point-symmetrical positions. A pair of frame members (8) and a reinforcing member (9) fixed to the partition membrane (1) and disposed between the pair of frame members (8). A first unit member (C) that forms a part of
The pair of frame members (8) and the reinforcing member (9) are formed by being fixed to the partition film (1) so as to be in a line-symmetrical position with respect to the first unit member (C). 3) comprising a second unit member (D) forming a part of
The first unit member (C) and the second unit member (D) are alternately stacked vertically to form the air supply channel (2) and the exhaust channel (3),
Furthermore, the counter flow part (4) through which the air which passes the said air supply flow path (2) and the air which passes the said exhaust flow path (3) mutually flow in parallel and opposite direction, and the said air supply flow path (2) A cross flow section (5) in which the air passing through the exhaust passage (3) and the air passing through the exhaust flow path (3) cross and flow when seen from a direction orthogonal to the partition membrane (1),
A total heat exchanger characterized in that a width dimension (W) and a length dimension (L) of the counterflow portion (4) are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. A rectangular (26) partition film (1) having heat conductivity and moisture permeability, and a continuous part of the long side (27) and short side (28) of the rectangle (26) of the partition film (1) A pair of frame members (8) that are fixed and arranged at point-symmetric positions with each other, and a reinforcing member that is fixed to the partition film (1) and disposed between the pair of frame members (8) ( 9) and a first unit member (C) that forms a part of the air supply flow path (2).
The pair of frame members (8) and the reinforcing member (9) are formed by being fixed to the partition film (1) so as to be in a line-symmetrical position with respect to the first unit member (C). 3) comprising a second unit member (D) forming a part of
The first unit member (C) and the second unit member (D) are alternately stacked vertically to form the air supply channel (2) and the exhaust channel (3),
Furthermore, the counter flow part (4) through which the air which passes the said air supply flow path (2) and the air which passes the said exhaust flow path (3) mutually flow in parallel and opposite direction, and the said air supply flow path (2) A cross flow section (5) in which the air passing through the exhaust passage (3) and the air passing through the exhaust flow path (3) cross and flow when seen from a direction orthogonal to the partition membrane (1),
A total heat exchanger, wherein a width dimension (W) and a length dimension (L) of the counter flow portion are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. A partition film (1) having heat conductivity and moisture permeability formed by cutting four corners (31) of a rectangle (29) with a corner cut edge (32) to form an elongated octagon (33), and the partition film ( 1) The long side (34) of the rectangle (29), the corner-cut side (32), and the short side (35) of the rectangle (29) are fixed in a continuous manner and arranged at point-symmetric positions. A pair of frame members (8) and a reinforcing member (9) that is fixed to the partition film (1) and disposed between the pair of frame members (8) have a supply channel (2). A first unit member (C) that forms a part,
The pair of frame members (8) and the reinforcing member (9) are formed by being fixed to the partition film (1) so as to be in a line-symmetrical position with respect to the first unit member (C). 3) comprising a second unit member (D) forming a part of
The first unit member (C) and the second unit member (D) are alternately stacked vertically to form the air supply channel (2) and the exhaust channel (3),
Furthermore, the counter flow part (4) through which the air which passes the said air supply flow path (2) and the air which passes the said exhaust flow path (3) mutually flow in parallel and opposite direction, and the said air supply flow path (2) A cross flow section (5) in which the air passing through the exhaust passage (3) and the air passing through the exhaust flow path (3) cross and flow when seen from a direction orthogonal to the partition membrane (1),
A total heat exchanger characterized in that a width dimension (W) and a length dimension (L) of the counterflow portion (4) are set so as to satisfy 2.0 × W ≦ L ≦ 4.5 × W. A plurality of baffle members (37) for generating a flow having a velocity component (V ₁ ) in the direction of approaching or leaving the partition film (1) in the counter flow part (4) in a direction orthogonal to the flow The total heat exchanger according to claim 1, 3, 4, or 5 disposed.

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