WO2016147359A1

WO2016147359A1 - Heat transfer element and method for manufacturing heat transfer element

Info

Publication number: WO2016147359A1
Application number: PCT/JP2015/058127
Authority: WO
Inventors: 杉原　俊英; 一外川; 今井　孝典
Original assignee: 三菱電機株式会社
Priority date: 2015-03-18
Filing date: 2015-03-18
Publication date: 2016-09-22
Also published as: EP3273196A4; EP3273196A1; EP3273196B1; JP6275325B2; JPWO2016147359A1

Abstract

A heat transfer element (1) comprises: a counter flow section (13) formed by alternately layering a plurality of partitioning plates (2) and a plurality of spacing plates (3) having cross sections showing a waveform shape; a first separating channel section (14); and a second separating channel section (15). When viewed in the direction that the partitioning plates (2) and the spacing plates (3) are layered, the counter flow section (13) is formed so that the spacing plates (3) are disposed so that the crests of the waveforms extend parallel to each other, and a first channel and a second channel are formed to alternate with a partitioning plate (2) therebetween. The first separating channel section (14) and the second separating channel section (15) separate the air flowing in the first channel and the air flowing in the second channel to be in different directions. Each partitioning plate (2) in the counter flow section (13) and each partition plate (2) in the first separating channel section (14) are joined by tape (7), and each partitioning plate (2) in the counter flow section (13) and each partition plate (2) in the second separating channel section (15) are joined by tape (7)

Description

HEAT EXCHANGE ELEMENT AND METHOD FOR PRODUCING HEAT EXCHANGE ELEMENT

The present invention relates to a heat exchange element that performs heat exchange between a supply airflow and an exhaust stream, and a method for manufacturing the heat exchange element.

Conventionally, a heat exchange element is used in which a space between a plurality of partition plates stacked at intervals is used as a flow path through which airflow can pass. In the heat exchange element, heat exchange is performed through the partition plate between the airflows passing through the adjacent flow paths with the partition plate interposed therebetween. In such a heat exchange element, for example, the supply airflow is passed through a flow path formed on one surface side of the partition plate, and the exhaust flow of the flow path formed on the other surface side is passed through, thereby supplying the airflow Heat exchange ventilation can be performed to exchange heat between the air and the exhaust stream.

In addition, as the heat exchange element, there is a counter flow type heat exchange element in which adjacent flow paths are formed in parallel with each other with a partition plate in between, and the flow directions of the adjacent flow paths differ by 180 degrees. In Patent Document 1, an opposed flow path portion that has a rectangular parallelepiped shape and that has a flow direction of 180 degrees different between one side and the other side of the partition plate, and an air flow that has a triangular prism shape and passes through the opposed flow path portion. A counter flow type heat exchange element is disclosed which is combined with a separation flow path section for separating the components. The separation flow path unit is configured to join a supply air flow flowing through the supply air flow path outside the heat exchange element and an exhaust flow flowing through the exhaust air flow path toward the opposing flow path part, or a supply air flow passing through the counter flow path part and Separate the exhaust stream.

Japanese Patent Laid-Open No. 11-325780

Although various sizes of heat exchange elements are used, it is necessary to create an opposing channel portion and a separation channel portion according to the size. In the above-mentioned Patent Document 1, the opposed flow path portion is formed using an element configuration frame having an outer periphery formed by a shielding rib and a support frame. For this reason, a mold for molding the element component frame is required in accordance with the size of the opposing flow path portion, and the manufacturing cost tends to increase.

The present invention has been made in view of the above, and an object of the present invention is to obtain a heat exchange element capable of suppressing the manufacturing cost and increasing the size variation.

In order to solve the above-described problems and achieve the object, the present invention provides a counter flow channel portion formed by alternately laminating a plurality of partition plates and a plurality of interval plates having a corrugated cross section. The separation channel portion and the second separation channel portion are provided, and the counter channel portion is seen along the stacking direction of the partition plate and the interval plate, and the interval plates are arranged such that the wave-shaped top portions extend in parallel. Is arranged in a box shape in which one of the corrugated tops in the extending direction is a first surface and the other is a second surface, and air is passed from the first surface toward the second surface. The first flow path and the second flow path for allowing air to pass from the second surface toward the first surface are alternately formed with the partition plate interposed therebetween, and the first separation flow path portion has the first surface and Opposing third surface, fourth surface facing different direction from third surface, and fifth surface facing different direction from third surface and fourth surface In the layer facing the first flow path, the corrugated top of the spacing plate extends from the third surface toward the fourth surface, and in the layer facing the second flow path, from the third surface toward the fifth surface. And the second separation flow path portion includes a sixth surface facing the second surface, a seventh surface facing the direction different from the sixth surface, and the sixth surface and the seventh surface. In a layer having an eighth surface facing a different direction from the surface and facing the first flow path, the top of the corrugated shape of the spacing plate extends from the sixth surface to the seventh surface, and faces the second flow path. In the layer, the corrugated top of the spacing plate extends from the sixth surface to the eighth surface, and each partition plate of the opposed flow channel portion and each partition plate of the first separation flow channel portion are taped. Each partition plate of the opposed flow path portion and each partition plate of the second separation flow path portion are joined with a tape.

The heat exchange element according to the present invention has the effect of suppressing the manufacturing cost and increasing the size variation.

The perspective view of the heat exchange element concerning Embodiment 1 of this invention. The perspective view of the opposing flow-path part of the heat exchange element concerning Embodiment 1. The top view of the opposing flow-path part of the heat exchange element concerning Embodiment 1. The perspective view of the 1st separation channel part of the heat exchange element concerning Embodiment 1. The top view of the 1st separation flow path part of the heat exchange element concerning Embodiment 1. The perspective view which extracted the layer containing a 1st flow path from the heat exchange element concerning Embodiment 1. FIG. The perspective view which extracted the layer containing a 2nd flow path from the heat exchange element concerning Embodiment 1. FIG. It is a figure explaining the manufacturing method of the heat exchange element concerning Embodiment 1, Comprising: The figure shown about cutting out of the square member from a corrugated roll FIG. 5 is a diagram for explaining the method for manufacturing the heat exchange element according to the first embodiment, and is a diagram illustrating the cutting out of the first parallelogram member from the rectangular member. FIG. 5 is a diagram for explaining a method for manufacturing the heat exchange element according to the first embodiment, and is a diagram illustrating the cutting out of the second parallelogram member from the rectangular member. The top view which shows the state which joined the 1st parallelogram member to the rectangular unit member in the manufacturing method of the heat exchange element concerning Embodiment 1. FIG. The top view which shows the state which joined the 2nd parallelogram member to the rectangular unit member in the manufacturing method of the heat exchange element concerning Embodiment 1. FIG. The top view which shows the state which laminated | stacked the 1st joining member and the 2nd joining member in the manufacturing method of the heat exchange element concerning Embodiment 1. FIG. The figure shown about the cutting | disconnection of a laminated member in the manufacturing method of the heat exchange element concerning Embodiment 1. FIG. The perspective view of the heat exchange element concerning Embodiment 2 of this invention. The perspective view which extracted the 1st flow-path part from the heat exchange element concerning Embodiment 2. FIG. The perspective view which extracted the 2nd flow-path part from the heat exchange element concerning Embodiment 2. FIG. The figure shown about the cutting example of a laminated member in the manufacturing method of the heat exchange element concerning Embodiment 2. FIG.

Hereinafter, a heat exchange element and a method for manufacturing the heat exchange element according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a heat exchange element according to the first embodiment of the present invention. The heat exchange element 1 is used in a heat exchange ventilator that exchanges heat between an air supply air that supplies outdoor air into the room and an exhaust air that exhausts indoor air to the outside. The heat exchange element 1 includes an opposing flow path portion 13 having a box-shaped rectangular parallelepiped shape, a first separation flow path portion 14 having a triangular prism shape, and a second separation flow path portion 15 having a triangular prism shape. .

FIG. 2 is a perspective view of the opposed flow path portion 13 of the heat exchange element 1 according to the first embodiment. FIG. 3 is a plan view of the opposed flow path portion 13 of the heat exchange element 1 according to the first embodiment. FIG. 4 is a perspective view of the first separation flow path portion 14 and the second separation flow path portion 15 of the heat exchange element 1 according to the first embodiment. FIG. 5 is a plan view of the first separation flow path portion 14 and the second separation flow path portion 15 of the heat exchange element 1 according to the first embodiment.

The opposed flow path portion 13, the first separation flow path portion 14, and the second separation flow path portion 15 are configured by alternately laminating the partition plates 2 and the spacing plates 3. The partition plate 2 is formed of a material having heat conductivity and moisture permeability or a material having only heat conductivity. Moreover, the partition plate 2 is formed with the material which does not have air permeability. The interval plate 3 has a corrugated cross section. The spacing plate 3 is bonded to the partition plate 2 at the top of the corrugated shape. By providing the interval plate 3 having a corrugated shape between the partition plates 2, the interval between the partition plates 2 is maintained at a constant interval. The space formed between the partition plates 2 is a flow path through which air can pass. In the flow path, air can pass along the direction in which the top of the corrugated shape of the spacing plate 3 extends. In the following description, the space between the two partition plates 2 may be described as one layer. Further, the direction in which the top of the corrugated shape of the spacing plate 3 extends is also referred to as the flow path direction. The stacking direction of the partition plate 2 and the spacing plate 3 is also simply referred to as a stacking direction.

As shown in FIGS. 2 and 3, the opposed flow path portion 13 is arranged so that the top portions of the corrugated shape extend in parallel between the spacing plates 3 of different layers when viewed along the stacking direction. In the drawing, the position of the top of the waveform shape is indicated by a broken line.

The opposing flow path portion 13 has one surface in the flow path direction as the first surface 13a and the other surface as the second surface 13b. The plurality of flow paths formed between the partition plates 2 are a first flow path 21 that allows air to pass from the first surface 13a toward the second surface 13b, and a second surface 13b toward the first surface 13a. It is divided into a second flow path 22 through which air passes. The first flow path 21 and the second flow path 22 are alternately arranged in the stacking direction so that one side of the partition plate 2 is the first flow path 13a and the other side of the partition plate 2 is the second flow path 13b. Set to The direction of the air flow passing through the first flow path 13a and the direction of the air flow passing through the second flow path 13b are opposed to each other and differ by 180 degrees. In the following description, an example is given in which the supply airflow is passed through the first flow path 21 and the exhaust flow is passed through the second flow path 22.

As shown in FIGS. 4 and 5, the first separation channel portion 14 is a third surface 14 a that faces the first surface 13 a of the counter channel portion 13, and a fourth surface that faces a different direction from the third surface 14 a. 14b, and a fifth surface 14c facing in a different direction from the third surface 14a and the fourth surface 14b.

Among the layers of the first separation flow path section 14, the layers facing the first flow path 21 of the counter flow path section 13 are spaced so as to be in the flow path direction from the third surface 14a to the fourth surface 14b. A plate 3 is provided. Further, among the layers of the first separation channel portion 14, the layer facing the second channel 22 of the counter channel unit 13 has a channel direction from the third surface 14 a toward the fifth surface 14 c. A spacing plate 3 is provided. Therefore, in the first separation flow path portion 14, the air flow directions intersect at the flow paths on both sides of the partition plate 2. In addition, air cannot enter the layer connected to the second flow path 22 from the fourth surface 14b, and air cannot enter the layer connected to the first flow path 21 from the fifth surface 14c.

As shown in FIG. 4 and FIG. 5, the second separation channel portion 15 has a sixth surface 15 a that faces the second surface 13 b of the opposed channel portion 13, and a seventh surface that faces a different direction from the sixth surface 15 a. 15b, an eighth surface 15c facing in a different direction from the sixth surface 15a and the seventh surface 15b.

Among the layers of the second separation flow path section 15, the layer facing the first flow path 21 of the counter flow path section 13 is spaced so as to be in the flow path direction from the sixth surface 15a to the seventh surface 15b. A plate 3 is provided. Of the layers of the second separation channel section 15, the layer facing the second channel 22 of the counter channel unit 13 has a channel direction from the sixth surface 15a to the eighth surface 15c. A spacing plate 3 is provided. Therefore, in the second separation flow path portion 15, the air flow directions intersect at the flow paths on both sides of the partition plate 2. In addition, air cannot enter the layer connected to the second flow path 22 from the seventh surface 15b, and air cannot enter the layer connected to the first flow path 21 from the eighth surface 15c. As described above, the first separation channel portion 14 and the second separation channel portion 15 are configured so that the supply airflow in the first channel 21 and the exhaust flow in the second channel that are flowing in parallel in the opposing channel portion. Are separated into flows in different directions.

FIG. 6 is a perspective view of a layer including the first flow path 21 extracted from the heat exchange element 1 according to the first embodiment. FIG. 7 is a perspective view of a layer including the second flow path 22 extracted from the heat exchange element 1 according to the first embodiment.

As shown in FIG. 6, the layer including the first flow path 21 includes a rectangular unit member (rectangular unit member) 31 in which a rectangular partition plate 2 and a rectangular spacing plate 3 are stacked, and a triangular partition plate. 2 and the first triangular unit member 32 obtained by overlapping the triangular spacing plate 3 are joined by a tape 7. The tape 7 joins the partition plate 2 of the rectangular unit member 31 and the partition plate 2 of the first triangular unit member 32. The tape 7 plays a role similar to that of the partition plate 2 and is formed of a material having no air permeability.

Further, as shown in FIG. 7, the layer including the second flow path 22 includes a rectangular unit member 31 in which a rectangular partition plate 2 and a rectangular spacing plate 3 are stacked, a triangular partition plate 2 and a triangular shape. The second triangular unit member 33 on which the interval plate 3 is overlapped is joined with the tape 7. The tape 7 joins the partition plate 2 of the rectangular unit member 31 and the partition plate 2 of the second triangular unit member 33.

A state in which the layer including the first flow path 21 and the layer including the second flow path 22 illustrated in FIGS. 6 and 7 are stacked is the heat exchange element 1 illustrated in FIG. In the heat exchange element 1, the supply airflow that flows from the fourth surface 14 b of the first separation flow path portion 14 toward the layer including the first flow path 21 is the third surface 14 a and the first flow path of the counter flow path portion 13. It passes through the surface 13a, the second surface 13b, and the sixth surface 15a of the second separation channel portion 15 in this order, and flows out from the seventh surface 15b (flow indicated by an arrow X in FIG. 6).

Further, in the heat exchange element 1, the exhaust flow that flows from the eighth surface 15 c of the second separation flow path portion 15 toward the layer including the second flow path 22 flows through the sixth surface 15 a and the opposed flow path portion 13. It passes through the second surface 13b, the first surface 13a, and the third surface 14a of the first separation channel portion 14 in this order, and flows out from the fifth surface 14c (flow indicated by arrow Y in FIG. 7). In the process of passing through the inside of the heat exchange element 1, heat exchange is performed through the partition plate 2 between the supply airflow and the exhaust flow. The heat exchange element 1 is a so-called counter flow type heat exchange element in which the supply air flow and the exhaust flow pass through the counter flow path portion 13 in directions different by 180 degrees.

Next, a method for manufacturing the heat exchange element 1 will be described. FIG. 8 is a diagram for explaining the manufacturing method of the heat exchange element 1 according to the first embodiment and is a diagram illustrating the cutting out of a rectangular member from the corrugated roll. First, as shown in FIG. 8, a rectangular member 42 having a rectangular shape is cut out from a corrugated roll 41 in which a long partition plate 2 and a long interval plate 3 are bonded to form a roll. The corrugated roll 41 is a cardboard-like member formed with an area larger than the completed dimension. In the corrugated roll 41, the direction in which the top of the corrugated shape of the spacing plate 3 extends (flow direction) is the short direction, and the direction perpendicular to the direction in which the top extends (flow direction) is the long direction. The corrugated roll 41 is formed with a length of several tens of meters in the longitudinal direction, for example. The rectangular member 42 is cut out by cutting the corrugated roll 41 in parallel with the flow path direction, that is, cutting in parallel with the short direction. Next, the rectangular member 42 is cut along line A that is perpendicular to the flow path direction to obtain the rectangular unit member 31 shown in FIGS. 6 and 7.

FIG. 9 is a diagram for explaining the manufacturing method of the heat exchange element 1 according to the first embodiment, and is a diagram illustrating the cutting out of the first parallelogram member 34 from the rectangular member 42. FIG. 10 is a diagram for explaining the method for manufacturing the heat exchange element 1 according to the first embodiment, and is a diagram illustrating the cutting of the second parallelogram member 35 from the rectangular member 42.

Separately from the step of obtaining the rectangular unit member 31, the rectangular member 42 is cut obliquely with respect to the flow path direction of the spacing plate 3 to obtain the first parallelogram member 34 and the second parallelogram member 35. . As shown in FIG. 9, the first parallelogram member 34 is obtained by cutting along the B1 line and the B2 line inclined α ° counterclockwise (counterclockwise) with respect to the flow path direction. Here, the angle α is an acute angle. As shown in FIG. 10, the second parallelogram member 35 is obtained by cutting along a C1 line and a C2 line inclined β ° clockwise with respect to the flow path direction (clockwise). Here, the angle β is an obtuse angle.

Next, the rectangular unit member 31 and the first parallelogram member 34 are joined to form the first joining member 36. FIG. 11 is a plan view showing a state in which the first parallelogram member 34 is joined to the rectangular unit member 31 in the method for manufacturing the heat exchange element 1 according to the first embodiment. As shown in FIG. 11, the end face perpendicular to the flow path direction of the rectangular unit member 31 and the end face inclined with respect to the flow path direction of the first parallelogram member 34 are opposed to each other. The plates 2 are joined with the tape 7. At this time, a gap is provided between the rectangular unit member 31 and the first parallelogram member 34.

Next, the rectangular unit member 31 and the second parallelogram member 35 are joined together to create a second joining member 37. FIG. 12 is a plan view showing a state in which the second parallelogram member 35 is joined to the rectangular unit member 31 in the method for manufacturing the heat exchange element 1 according to the first embodiment. As shown in FIG. 12, the end face perpendicular to the flow path direction of the rectangular unit member 31 and the end face inclined with respect to the flow path direction of the second parallelogram member 35 are opposed to each other. The plates 2 are joined with the tape 7. At this time, a gap is provided between the rectangular unit member 31 and the second parallelogram member 35.

Next, a plurality of first joining members 36 and a plurality of second joining members 37 are alternately stacked. FIG. 13 is a plan view showing a state in which the first joining member 36 and the second joining member 37 are stacked in the method for manufacturing the heat exchange element 1 according to the first embodiment. As shown in FIG. 13, by laminating so that the rectangular unit members 31 overlap when viewed along the laminating direction, the directions of the flow paths of the rectangular unit members 31 coincide with each other, and the first parallelogram member 34 and the second parallelogram member 35 have different flow path directions. The first bonding member 36 and the second bonding member 37 are bonded to each other with an adhesive applied to the top of the corrugated portion of the spacing plate 3. This laminated member is cut by a D line parallel to the flow path direction of the rectangular unit member 31. Note that the number of D lines may be plural.

Thereby, the laminated member shown in FIG. 14 is obtained. Next, by cutting along the E1 line, E2 line parallel to the flow path direction of the first parallelogram member 34, and the F1 line, F2 line parallel to the flow path direction of the second parallelogram member 35, The heat exchange element 1 shown in FIG. 1 is obtained. That is, the first parallelogram member 34 and the second parallelogram member 35 are cut along the D line, the E1 line, the E2 line, the F1 line, and the F2 line, so that the first triangular unit member 32 and the second parallelogram member The triangular unit member 33 becomes. In addition, the first separation flow path section 14 and the first separation flow path section 14 in which the first triangular unit member 32 and the second triangular unit member 33 are laminated by cutting along the D line, the E1 line, the E2 line, the F1 line, and the F2 line. Two separation flow path portions 15 are formed. Note that, of the side surfaces of the heat exchange element 1, the joint portion between the opposed flow channel portion 13 and the second separation flow channel portion 15 is blocked by the airtight processing portion 16, thereby suppressing air leakage from the side surfaces. It has been.

As described above, according to the present embodiment, heat exchange including the opposed flow path portion 13 and the separation

flow path portions

14 and 15 by cutting the corrugated roll 41 which is a large corrugated cardboard and joining with the tape 7 is performed. Element 1 can be manufactured. Therefore, it is not necessary to prepare an element configuration frame in which the outer periphery is formed by the shielding rib and the support frame for the formation of the opposed flow path portion. Thereby, the manufacture of the metal mold | die for forming an element structure frame can be made unnecessary, the manufacturing cost can be suppressed, and the variation of the magnitude | size of the heat exchange element 1 can be increased.

Further, in the separation

flow path portions

14 and 15, the fourth surface 14b, the fifth surface 14c, the seventh surface 15b, and the eighth surface 15c are formed in parallel with the flow path direction. , Can form the wall of the air passage. Therefore, the shielding rib and the support frame for closing the air passage are unnecessary, and the labor for manufacturing these components can be saved. Moreover, it is not necessary to manufacture a mold for forming the shielding rib and the support frame, and the manufacturing cost can be reduced.

In addition, since a gap is formed between the opposed flow path portion 13 and the separation

flow path portions

14 and 15, the waveform of the spacing plate 3 is a joint portion between the opposed flow path portion 13 and the separation

flow path portions

14 and 15. Even when the shapes do not match, the gap becomes a chamber, and the air flow can be smoothed.

Further, by cutting one laminated member shown in FIG. 13, a completed product of a plurality of heat exchange elements 1 can be manufactured, so that the production efficiency can be improved. Moreover, the end surface of the heat exchange element 1 can be made into the surface which suppressed the unevenness | corrugation by the cutting | disconnection of a laminated member. On the other hand, when the laminated member is manufactured with the size of the finished product of the heat exchange element in order to eliminate the need for the cutting process, the end face of the heat exchange element is likely to be uneven due to the deviation in the lamination process. Therefore, in the first embodiment, the appearance of the heat exchange element 1 can be improved.

In FIG. 11, an example is shown in which the first parallelogram member 34 is joined to the left and right sides of the rectangular unit member 31, but the first parallelogram member is on the right side of the rectangular unit member 31. 34 may be joined with a tape, and a second parallelogram member 35 may be joined with the tape 7 on the left side of the rectangular unit member 31 to create a first joining member. In this case, in FIG. 11, the air passing through the rectangular unit member 31 is separated obliquely upward in the drawing on the left and right sides of the rectangular unit member 31.

FIG. 12 shows an example in which the second parallelogram member 35 is joined to the left and right of the rectangular unit member 31, but the second parallelogram member is on the right side of the rectangular unit member 31. 35 may be joined with a tape, and a first parallelogram member 34 may be joined with a tape on the left side of the rectangular unit member 31 to create a second joining member. In this case, in FIG. 12, the air passing through the rectangular unit member 31 is separated obliquely downward on the paper surface on both the left and right sides of the rectangular unit member 31.

</ RTI> A heat exchange element may be obtained by cutting a laminated member obtained by alternately laminating joining members created in this way. Even in the heat exchange element created in this way, the flow direction of air intersects the flow paths on both sides of the partition plate 2 in the first separation flow path section and the second separation flow path section. Can do. That is, in the first separation flow path portion and the second separation flow path portion, if the flow direction of the air can be crossed between the flow paths on both sides of the partition plate 2, it is illustrated in FIG. 11 and FIG. In creating the joined member, it is not necessary to join the same parallelogram member on both sides of the rectangular unit member 31. The same applies to the second embodiment described later.

Embodiment 2. FIG.
FIG. 15 is a perspective view of the heat exchange element according to the second embodiment of the present invention. FIG. 16 is a perspective view of a layer including the first flow path extracted from the heat exchange element according to the second embodiment. FIG. 17 is a perspective view of a layer including the second flow path extracted from the heat exchange element according to the second embodiment. In addition, about the structure similar to the said embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. In the second embodiment, the first separation flow path portion 54 and the second separation flow path portion 55 have a rectangular parallelepiped shape.

Further, the surface of the first separation channel portion 54 that faces in the direction opposite to the surface facing the first surface of the opposed channel portion 13 is a leakage of the supply air flow and the exhaust flow (arrow P in FIG. 16, FIG. 17). In order to prevent (see arrow Q of FIG. 4), the packing 12 is closed. In addition, the surface of the first separation channel portion 54 facing in the direction opposite to the surface facing the second surface of the opposed channel portion 13 is blocked by the packing 12 in order to prevent leakage of the supply air flow and the exhaust flow. It is. In FIG. 15, the heat exchange element 51 is shown with the packing 12 removed.

FIG. 18 is a diagram illustrating an example of cutting a laminated member in the method for manufacturing the heat exchange element 51 according to the second embodiment. As shown in FIG. 12, in a portion where the first parallelogram member 34 and the second parallelogram member 35 overlap, the laminated member is cut by a plurality of G lines, and the packing 12 is removed. The heat exchange element 51 can be obtained. Therefore, the heat exchange element 51 can be manufactured with fewer cutting steps than in the first embodiment.

Note that the first separation flow path portion 54 and the second separation flow path portion 55 are parallel to the diagonal direction of the rectangular shape (in plan view) when viewed along the stacking direction. It is preferable. When the diagonal line of the square shape when viewed along the stacking direction is not parallel to the flow path direction, for example, in the first separation flow path portion 54, the fourth surface 54b and the fifth surface 54c communicate with each other. It becomes easy to do. If the fourth surface 54b and the fifth surface 54c communicate with each other, the air supply air flow and the exhaust air flow are mixed. In the second separation channel portion 55, the seventh surface 55b and the eighth surface 55c are easily communicated. If the seventh surface 55b and the eighth surface 55c communicate with each other, the supply air flow and the exhaust flow are mixed. In addition, the channel tends to become narrow at the outlet of the channel. Therefore, it is preferable that the rectangular diagonal line when viewed along the stacking direction is parallel to the flow path direction.

The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 heat exchange element, 2 partition plate, 3 spacing plate, 7 tape, 12 packing, 13 opposing flow path part, 13a first surface, 13b second surface, 14 first separation flow path part, 14a third surface, 14b 4th surface, 14c 5th surface, 15 2nd separation flow path part, 15a 6th surface, 15b 7th surface, 15c 8th surface, 16 airtight processing part, 21 1st flow path, 22 2nd flow path, 31 rectangular unit member (square unit member), 32 first triangular unit member, 33 second triangular unit member, 34 first parallelogram member, 35 second parallelogram member, 36 first joining member 37 second joining member, 41 corrugated roll, 42 rectangular member, 51 heat exchange element, 54 first separation channel, 54b fourth surface, 54c fifth surface, 55 second separation channel.

Claims

A counter channel portion formed by alternately laminating a plurality of partition plates and a plurality of spacing plates having a corrugated cross section, a first separation channel portion and a second separation channel portion;
The counter channel portion is arranged so that the top portions of the corrugated shape extend in parallel with each other when viewed along the stacking direction of the partition plate and the spacing plate, and the top portion of the corrugated shape extends. A first flow path having a box shape in which one side in the direction is a first surface and the other is a second surface, and allows air to pass from the first surface toward the second surface; and the second Second flow paths for allowing air to pass from the surface toward the first surface are alternately formed across the partition plate,
The first separation channel section includes a third surface facing the first surface, a fourth surface facing a direction different from the third surface, and a fifth surface facing a direction different from the third surface and the fourth surface. In the layer that has a surface and faces the first flow path, the wave-shaped top of the spacing plate extends from the third surface toward the fourth surface, and in the layer that faces the second flow path, The top of the corrugated shape of the spacing plate extends from the third surface toward the fifth surface,
The second separation channel section includes a sixth surface facing the second surface, a seventh surface facing a direction different from the sixth surface, and an eighth direction facing a direction different from the sixth surface and the seventh surface. In the layer that has a surface and faces the first flow path, the top of the corrugated shape of the spacing plate extends from the sixth surface toward the seventh surface, and in the layer that faces the second flow path The top of the corrugated shape of the spacing plate extends from the sixth surface toward the eighth surface,
Each partition plate of the counter flow channel portion and each partition plate of the first separation flow channel portion are joined with a tape, and each partition plate of the counter flow channel portion and each partition of the second separation flow channel portion A heat exchange element, wherein the plate is joined with a tape.
A gap is provided between the opposed channel portion and the first separation channel portion,
2. The heat exchange element according to claim 1, wherein a gap is provided between the opposing flow path portion and the second separation flow path portion.
A plurality of rectangular unit members that exhibit a square shape in plan view and a first parallelogram member that exhibits a parallelogram shape in plan view from a corrugated roll in which a partition plate and a spacing plate exhibiting a corrugated shape are bonded together And cutting the second parallelogram member;
Joining the partition plate of the rectangular unit member and the partition plate of the first parallelogram member with a tape to form a first joining member;
A partition plate of a rectangular unit member different from the rectangular unit member joined to the first parallelogram member and a partition plate of the second parallelogram member are joined with a tape to form a second joining member. Forming, and
Laminating the first joining member and the second joining member so that the rectangular unit members overlap, and forming a laminated member;
Cutting the laminated member, and
The rectangular unit member has two sides parallel to a direction in which the corrugated shape of the spacing plate extends and two sides perpendicular to the extending direction.
The first parallelogram member is inclined at two angles parallel to the extending direction of the corrugated shape of the spacing plate and an acute angle clockwise to the extending direction of the corrugated shape of the spacing plate. Two sides,
The second parallelogram member is inclined at two angles parallel to the extending direction of the corrugated shape of the spacing plate and an angle that becomes an obtuse angle clockwise with respect to the extending direction of the corrugated shape of the spacing plate. Two sides,
In the step of forming the first joining member, among the sides of the rectangular unit member, the side perpendicular to the direction in which the top of the corrugated shape of the spacing plate extends, and the side of the first parallelogram member The side inclined at an acute angle clockwise with respect to the extending direction of the corrugated shape of the spacing plate is opposed and joined,
In the step of forming the second joining member, among the sides of the rectangular unit member, the side perpendicular to the direction in which the top of the corrugated shape of the spacing plate extends, and the side of the second parallelogram member The side inclined at an obtuse angle clockwise with respect to the direction in which the corrugated shape of the spacing plate extends is opposed and joined,
In the step of cutting the laminated member, the method of manufacturing a heat exchange element, wherein the rectangular unit member is cut parallel to a direction in which a wave shape of the spacing plate extends.
In the step of forming the first joining member, among the sides of the rectangular unit member, the side perpendicular to the direction in which the top of the corrugated shape of the spacing plate extends, and the side of the first parallelogram member A gap is provided between a side inclined at an acute angle clockwise with respect to the direction in which the corrugated shape of the spacing plate extends,
In the step of forming the second joining member, among the sides of the rectangular unit member, the side perpendicular to the direction in which the top of the corrugated shape of the spacing plate extends, and the side of the second parallelogram member 4. The method for manufacturing a heat exchange element according to claim 3, wherein a gap is provided between the interval plate and a side inclined at an obtuse angle clockwise with respect to a direction in which the corrugated shape extends.
In the step of cutting the laminated member, a portion where the first parallelogram member is laminated and a portion where the second parallelogram member is laminated are formed into a triangular prism shape, and the rectangular shape among the triangular prism shapes. 4. The method of manufacturing a heat exchange element according to claim 3, wherein a surface that does not face the unit member is parallel to a direction in which a top portion of the spacing plate extends in the triangular prism-shaped portion.
In the step of cutting the laminated member, a portion where the first parallelogram members are laminated and a portion where the second parallelogram members are laminated are formed in a rectangular parallelepiped shape, and the spacing plate in the rectangular parallelepiped portion The method of manufacturing a heat exchange element according to claim 3, wherein a direction in which the top portion of the rectangular parallelepiped extends is parallel to a diagonal line of the rectangular parallelepiped portion in plan view.
The method for manufacturing a heat exchange element according to claim 6, further comprising a step of closing a surface of the rectangular parallelepiped portion facing a direction opposite to the surface facing the rectangular unit member with packing.