JP5818749B2 - Total heat exchange element and total heat exchange device - Google Patents

Description

  The present invention relates to a total heat exchange element and a total heat exchange device.

  As a ventilation method that suppresses the loss of cooling and heating efficiency of the indoor air conditioning, there is a ventilation method in which heat exchange is performed between the supply air flow and the exhaust flow. In order to improve the efficiency of heat exchange, it is effective to perform total heat exchange that simultaneously exchanges humidity (latent heat) as well as temperature (sensible heat) between the supply airflow and the exhaust airflow.

  In a total heat exchange element that performs total heat exchange, an air supply channel and an exhaust channel are formed as channels independent of each other with a partition plate interposed therebetween. Since total heat exchange is performed between the supply airflow flowing through the supply air flow path and the exhaust flow flowing through the exhaust flow path, the indoor air is ventilated by a total heat exchange device including a total heat exchange element. Loss of energy used at the time of air conditioning cooling and energy used for dehumidification / humidification can be suppressed.

  For example, Patent Document 1 discloses a total heat exchange element having a structure in which ribs are formed on both front and back surfaces of a partition plate, and the ribs on each surface are orthogonal to each other. Further, Patent Document 2 discloses a total heat exchange element provided with spacing ribs shorter than the frame ribs on both the front and back surfaces of the partition plate.

Japanese Patent Laid-Open No. 3-28695 JP-A-8-82495

  However, in the technique disclosed in Patent Document 1, since the spacing rib is continuously connected with the same length as the dimension of the partition plate in the extending direction of the spacing rib, the heat transfer area of the partition plate is increased. There is a problem that the performance of the total heat exchange element is reduced.

  In the technique disclosed in Patent Document 2, a process of attaching a partition plate after molding a rib is necessary, so that the number of manufacturing processes increases and productivity is low. In addition, since the partition plate and the molding resin are bonded in the partition plate attaching step, the partition plate is bent at the time of bonding, and workability is poor, and further, there is a problem that a gap is formed in the bonded portion and airflow leaks.

  The present invention has been made in view of the above, and is intended to obtain a high-quality total heat exchange element with improved total heat exchange performance and less airflow leakage than the conventional one, and a total heat exchange apparatus using the same. Objective.

In order to achieve the above object, the total heat exchange element according to the present invention maintains a distance between the partition plate and another partition plate adjacent to the partition plate in the stacking direction perpendicular to the partition plate. The unit element having resin ribs provided on both surfaces of the partition plate so that the flow paths are orthogonal to each other is rotated by 90 degrees in the in-plane direction of the partition plate with respect to the other unit elements. A total heat exchange element that is laminated in a plurality of directions, wherein the unit element is divided into four sections having the same shape, and the first section, the second section, and the third section are sequentially clockwise from one section. In the case of the fourth section, the shape of the ribs provided in the first section and the second section is respectively set to the third section and the fourth section by rotating 180 degrees in the in-plane direction of the partition plate. matching, rotating of the said second compartment and said first compartment The shape of the rib is different when the stacked without rotating rib form and said third compartment and said fourth compartment when overlapped without the ribs, extending in the flow path of the partition plate Sealing ribs disposed at both ends in a direction perpendicular to the current direction, holding ribs provided in the vicinity of the center of the width of the flow channel along the extending direction of the flow channel, the sealing rib and the holding A plurality of ribs arranged at a predetermined interval along the extending direction of the flow path between the ribs, and a predetermined length of the jumping rib shorter than the length of the partition plate in the extending direction of the flow path , The unit element is rotated and laminated so that the extending direction of the flow path of the first surface of the partition plate matches the direction of the flow path of the second surface of another unit element adjacent to the stacking direction. The first jump rib provided on the first surface of the unit element and the front of the other unit element. One or more rows of flying ribs arranged at predetermined intervals on the same axis with the second flying ribs provided on the second surface are provided between the sealing rib and the holding rib, and the partition surface The first holding rib provided on the first surface and the other when the extending direction of the flow channel on the first surface of the other unit element is stacked so as to be orthogonal to the direction of the flow channel on the second surface of the other unit element. The first holding rib and the second holding rib are arranged so as to interfere with the second holding rib provided on the second surface of the unit element .

  According to the present invention, since the flying rib having a predetermined length is provided in the flow path, the contact area between the partition plate and the rib can be reduced, and the heat transfer area can be increased, so that the total heat exchange performance has been conventionally achieved. It has the effect that it can raise compared with. Further, since the unit element having the partition plate and the resin rib is used, there is an effect that a high-quality total heat exchange element with less airflow leakage can be obtained. Further, the unit element is divided into four sections having the same shape, and the shapes of the ribs provided in the first section and the second section are respectively set to the third section and the fourth section by rotating 180 degrees in the in-plane direction of the partition plate. And the shape of the ribs provided in the first compartment and the third compartment are different from those in the second compartment and the fourth compartment, so that the total heat exchange element can be constituted by one type of unit element. It is also possible to reduce the manufacturing cost of the total heat exchange element.

FIG. 1 is a perspective view showing a schematic configuration in a state where a plurality of total heat exchange elements according to the embodiment are stacked. FIG. 2 is a perspective view schematically showing an example of the configuration of the unit elements constituting the total heat exchange element. 3 is a plan view of the surface side of the unit element of FIG. FIG. 4 is a plan view of the back side of the unit element of FIG. FIG. 5 is a diagram in which the rib formed on the front surface side of the unit element and the rib formed on the back surface side of the total heat exchange element rotated 90 degrees in the plane are displayed in an overlapping manner. FIG. 6 is a diagram showing the positional relationship between the ribs formed on the front surface side and the ribs formed on the back surface side of the unit element. FIG. 7 is a diagram in which the unit elements are divided. FIG. 8 is a diagram illustrating an arrangement interval of the jump ribs and connection jump ribs formed in the flow path between adjacent unit elements when the unit elements are stacked. FIG. 9 is a cross-sectional view schematically showing the connection state of the ribs formed on the front and back surfaces of the unit element. FIG. 10 is a top view showing another configuration example of the unit elements constituting the total heat exchange element according to the embodiment. FIG. 11 is a diagram in which FIG. 10 is partitioned. FIG. 12 is a diagram illustrating a schematic configuration of a total heat exchange device to which the total heat exchange element according to the embodiment is applied.

  Hereinafter, a total heat exchange element and a total heat exchange device according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.

  FIG. 1 is a perspective view showing a schematic configuration in a state where a plurality of total heat exchange elements according to the embodiment are stacked, and FIG. 2 schematically shows an example of a configuration of unit elements constituting the total heat exchange element. 3 is a perspective view, FIG. 3 is a plan view of the front side of the unit element of FIG. 2, and FIG. 4 is a plan view of the back side of the unit element of FIG. FIG. 5 is a diagram in which the ribs formed on the front surface side of the unit element and the ribs formed on the back surface side of the total heat exchange element rotated 90 degrees in the plane are displayed in an overlapping manner. FIG. 6 is a diagram showing the positional relationship between the ribs formed on the front surface side and the ribs formed on the back surface side of the unit element, and FIG. 7 is a diagram in which the unit elements are divided. FIG. 8 is a diagram showing the spacing between the jump ribs and connection jump ribs formed in the flow path between adjacent unit elements when the unit elements are stacked, and FIG. 9 is formed on both the front and back surfaces of the unit elements. It is sectional drawing which shows typically the connection state of the rib made. In this embodiment, as shown in FIG. 2, the extending directions of two sides of the rectangular unit element that are orthogonal to each other are defined as an X direction and a Y direction, respectively, and directions perpendicular to these two directions. Is the Z direction. That is, as will be described later, the extending direction of the Z-direction positive side (front surface side) rib of the unit element is defined as the Y direction, and the extending direction of the Z-direction negative side (back surface side) rib is defined as the X direction.

  The total heat exchange element 1 of this embodiment is orthogonal to the first air flow path (first flow path) 2 in the first direction and the first air flow path (first flow path) 2. A plurality of unit elements 10 are stacked in the Z direction so that second air flow paths (second flow paths) 3 in the second direction are alternately formed in the Z direction.

  The unit element 10 includes a first surface (hereinafter referred to as a front surface) 12 on the positive side in the Z direction of a substantially square plate-shaped partition plate 11, and a second surface (hereinafter referred to as a back surface) 13 facing the front surface 12. The ribs 21 to 23 and 31 to 33 are provided so that the flow paths formed on the front surface 12 and the back surface 13 intersect. When viewed from the unit element 10, ribs 21 to 23 are provided on the front surface 12 side so that airflow flows in the Y direction, and ribs 31 to 33 are provided on the back surface 13 side so that airflow flows in the X direction. It is done.

  As shown in FIG. 2 and FIG. 3, a sealing rib 21, a holding rib 22, and a jumping rib 23 are provided on the surface 12 of the unit element 10 (partition plate 11).

  The sealing rib 21 forms a flow path P1 through which gas flows in the Y direction on the surface 12 of the partition plate 11, and the X direction of the surface 12 of the partition plate 11 so as to block airflow leakage of gas flowing in the Y direction. It is provided with both ends and is constituted by two rows of ribs extending in the Y direction.

  The holding ribs 22 are provided in the vicinity of the center in the X direction on the surface 12 of the partition plate 11 so as to extend in the same Y direction as the sealing ribs 21 and hold the gaps in the stacking direction of the flow paths P1. The holding rib 22 is constituted by two ribs 22a and 22b having a length approximately half of the length of the partition plate 11 in the Y direction. Here, the two ribs 22a and 22b are not arranged in a straight line, but are shifted in the X direction by the thickness of the ribs 22a and 22b, and a gap (fitting portion) is located near the center in the Y direction. 22c.

  The flying ribs 23 extend in the same Y direction as the sealing ribs 21 and the holding ribs 22 and are arranged in a plurality of rows (three rows in this example) between the sealing ribs 21 and the holding ribs 22. In order to suppress the blockage of the flow path P <b> 1 due to the extension of the partition plate 11 and to keep the heat transfer area larger, a plurality of the jump ribs 23 are provided in the flow direction (Y direction). That is, in a plurality of rows of ribs extending in the Y direction provided in the flow path P1 between the sealing rib 21 and the holding rib 22, a gap is provided in each row of ribs at predetermined intervals in the Y direction. It has become.

  As shown in FIG. 4, connection sealing ribs 31, connection holding ribs 32, and connection jumping ribs 33 are provided on the back surface 13 of the unit element 10 (partition plate 11).

  The connection sealing rib 31 forms a flow path P2 through which gas flows in the X direction on the back surface 13 of the partition plate 11, and Y on the back surface 13 of the partition plate 11 so as to block airflow leakage of gas flowing in the X direction. Provided at the direction end. The connection sealing rib 31 is configured by two rows of ribs extending in the X direction orthogonal to the flow path P1 of the surface 12. Further, as shown in FIG. 6 and FIG. 9, the connection sealing rib 31 penetrates the partition plate 11 at the end thereof and is connected to the sealing rib 21 formed on the surface 12.

  The connection holding rib 32 extends in the same X direction as the connection sealing rib 31 in the vicinity of the center in the Y direction of the back surface 13 of the partition plate 11 so as to maintain the interval and the structural strength of the flow path P2 in the stacking direction. Provided. The connection holding rib 32 is configured by a single rib extending in the X direction having a length substantially equal to the length of the partition plate 11 in the X direction. However, in the vicinity of the center in the X direction, the position in the Y direction is shifted by the thickness of one rib. More specifically, the two ribs 32a and 32b having approximately half the length in the X direction of the partition plate 11 are shifted by the thickness of the ribs 32a and 32b in the vicinity of the center in the Y direction. It extends in the X direction and has a structure in which one end of the two ribs 32a and 32b is connected by a connecting portion 32c in the vicinity of the center of the partition plate 11. As shown in FIGS. 6 and 9, the connection holding rib 32 passes through the partition plate 11 in the vicinity of the center of the partition plate 11 and is connected to the holding rib 22. Connected to the retaining rib 21.

  The connection skip ribs 33 extend in the same X direction as the connection sealing ribs 31 and the connection holding ribs 32, and are arranged in a plurality of rows (three rows in this example) between the connection sealing ribs 31 and the connection holding ribs 32. Be placed. In order to suppress the blockage of the flow path P <b> 2 due to the extension of the partition plate 11 and to keep the heat transfer area larger, a plurality of the connecting jump ribs 33 are provided in a small amount in the flow direction (X direction). That is, in the plurality of rows of ribs extending in the X direction provided in the flow path P2 between the connection sealing rib 31 and the connection holding rib 32, gaps are provided in the rows of the ribs at predetermined intervals in the X direction. It has a structure. As shown in FIG. 6 and FIG. 9, both ends of the connecting jump rib 33 in the X direction pass through the partition plate 11 and are arranged on the front surface 12 side with the jump rib 23, the sealing rib 21, or the holding rib 22. Connected.

  As described above, the ribs on the back surface 13 are connected through the ribs on the front surface 12 and the partition plate 11 so that when the ribs are formed as will be described later, all of the resin is injected once. These ribs can be formed integrally.

  Here, the lengths of the flying ribs 23 and the connecting flying ribs 33 are to suppress the air passage blockage due to the extension of the partition plate 11, to secure the heat transfer area, and to the flying ribs 23 and the connecting flying ribs 33 at the time of resin molding. From the viewpoint of ensuring resin fluidity, it is desirable that the length of one side of the unit element 10 is 1/16 or more and 1/6 or less.

  The unit elements 10 having such a configuration are sequentially stacked in the Z direction. At this time, the back surface 13 of another unit element 10 adjacent in the Z direction is opposed to the front surface 12 of a certain unit element 10, and the other unit element 10 is rotated 90 degrees in the XY plane with respect to the unit element 10 with the other unit element 10. The unit elements 10 are stacked so that the total heat exchange element 1 is formed so that the arrangement described above is achieved.

  When stacked in the Z direction in this way, the direction of the flow path P1 on the front surface 12 of a certain unit element 10 matches the direction of the flow path P2 on the back surface 13 of the other unit element 10, and one flow path P is formed. Form. And the rib formed in the flow path P between the unit elements 10 laminated | stacked on the Z direction is arrange | positioned as FIG. 5 shows. In FIG. 5, for convenience, the ribs 31 to 33 formed on the back surface 13 are hatched so that the ribs 21 to 23 formed on the front surface 12 and the ribs 31 to 33 formed on the back surface 13 can be distinguished. Is attached.

  As shown in FIG. 5, the flow path P1 formed on the front surface 12 of a certain unit element 10 and the flow path P2 formed on the back surface 13 of another unit element 10 adjacent in the Z direction overlap. In the flow path P formed by the sealing element 21, the sealing rib 21 extending in the Y direction of a certain unit element 10 and the connecting sealing rib 31 extending in the X direction of another unit element 10 have an extending direction. Arranged to match. When the surface 12 of a certain unit element 10 is used as a reference (and so on), the sealing ribs 21 and the connection sealing ribs 31 are disposed at both ends of the certain unit element 10 in the X direction. At this time, two ribs of the sealing ribs 21 on the front surface 12 of one unit element 10 and the two rows of connection sealing ribs 31 on the back surface 13 of the other unit element 10 have one rib fitted in each recess. The structure is fixed, and the unit elements 10 adjacent in the Z direction are fixed. As a result, the four ribs extending in the Y direction form a lump and support the end portion in the X direction of the partition plate 11 as a sealing rib.

  Further, in the flow path P formed by two unit elements 10 adjacent in the Z direction, the holding rib 22 and the connection holding rib 32 are arranged to extend in the Y direction at the center of the partition plate 11 in the X direction. The Specifically, the holding rib 22 disposed so as to have a gap 22c in the center of the surface 12 of a certain unit element 10 and the connection holding rib 32 on the back surface 13 of the other unit element 10 are integrated, One holding rib extending in the Y direction is formed. At this time, the connection portion 32 c near the central portion in the Y direction of the connection holding rib 32 is fitted into the gap 22 c of the holding rib 22. As a result, the two ribs extending in the Y direction form a lump and support the central portion in the X direction of the partition plate 11 as a holding rib.

  Since the connection holding rib 32 and the holding rib 22 are thus fitted together, for example, when stacking, another unit element 10 is rotated 90 degrees in the XY plane with respect to a certain unit element 10. If not, a part of the connection holding rib 32 and a part of the holding rib 22 interfere with each other, so that it is easy to recognize that the stacking method is wrong. Further, during stacking, positioning is performed by fitting the gap 22c at the center of the front surface 12 of a certain unit element 10 and the connection portion 32c at the center of the back surface 13 of another unit element 10, thereby preventing stacking misalignment between the unit elements 10. be able to.

  A flow path P is formed between the integrated sealing rib and the integrated holding rib, and there is a jump rib 23 on the surface 12 of a certain unit element 10 and the back surface of another unit element 10. 13 connecting jump ribs 33 make up for the gaps on the same axis in the same row, and the jump ribs 23 and the connection jump ribs 33 in the flow path P are regularly and alternately arranged. As a result, three rows of jumping ribs arranged at predetermined intervals in the Y direction are formed between the integrated sealing ribs and the integrated holding ribs. Since the flying ribs 23 and the connecting flying ribs 33 are arranged on the same axis in the flow direction in this way, the air path formed by the flying ribs 23 and the connecting flying ribs 33 is cut into small pieces. Therefore, the frictional resistance of the airflow by the rib can be reduced, and each air passage can be formed in a shape that results in low pressure loss. Further, in this case, the jump ribs 23 of a certain unit element 10 occupy about half of the total of the jump ribs 23 and the connection jump ribs 33 formed in the flow path P.

  The flow path P formed in this way becomes the first flow path 2 or the second flow path 3 shown in FIG.

  Here, the arrangement of the ribs formed on the front surface 12 and the back surface 13 of the unit element 10 will be described with reference to FIGS. 6 and 7. FIG. 6 is a view of an example of the configuration of one unit element 10 as viewed from the front side, and FIG. 7 is a view obtained by dividing FIG. In FIG. 6, the rib provided on the back side is hatched.

  As shown in FIG. 7, the unit element 10 is divided into four sections A to A by a straight line extending in the X direction through the center of the unit element 10 and a straight line extending in the Y direction through the center of the unit element 10. Divide into D. Here, one of the four divided areas is defined as section A, and from there, section B, section C, and section D are clockwise.

  In this embodiment, when the section A is rotated 180 degrees in the XY plane, the same shape as the section C is obtained. Similarly, when the section B is rotated 180 degrees in the XY plane, the same shape as the section D is obtained. That is, the sections A and B have a rotationally symmetric structure with the sections C and D, respectively.

  The section A and the section B (similarly the section C and the section D) have different shapes. For example, when section A is rotated 90 degrees in the XY plane and overlapped with B, as shown in FIG. 5 (a view in which the flow path P formed when stacked is projected from the upper surface), it is parallel to the flow direction. In addition, the flying rib 23 and the connecting flying rib 33 form a flow path P. At this time, as described above, the flying ribs 23 and the connecting flying ribs 33 do not interfere with each other, and the flying ribs 23 and the flying ribs arranged adjacent to each other in the Y direction when the surface 12 of the partition plate 11 is used as a reference. The connecting jump ribs 33 are arranged between the connecting jump ribs 33 or between the connecting jump ribs 33 arranged adjacent to each other in the Y direction. Furthermore, the arranged jump ribs 23 and the connection jump ribs 33 are regularly and alternately arranged in the flow path P between the sealing ribs 21 and 31 and the holding ribs 22 and 32.

  Thus, the total heat exchange element 1 can be obtained simply by rotating the unit elements 10 having the same shape by 90 degrees and stacking them, so that the productivity is high. Further, if the stacking is attempted without rotating by 90 degrees, the ribs interfere as described above, thereby preventing erroneous stacking.

  Further, as shown in FIG. 8, for example, in the flow path P on the surface of the partition plate 11, the partition plate 11 between the ribs is free at a position where the jump rib 23 and the connection jump rib 33 are formed coaxially. The span (interval) in the flow direction is substantially the same α at any position. Further, for example, in the flow path P on the back surface of the partition plate 11, the flow direction span (where the partition plate 11 between the ribs is free) at the position where the jump rib 23 and the connection jump rib 33 are formed coaxially. The interval is approximately the same β at any position. As described above, by uniformly providing the rib interval along the flow direction, the bending of the partition plate 11 can be efficiently suppressed.

  Here, as the partition plate 11, gas-shielding and moisture-permeable, for example, a composite film obtained by laminating a base material such as a moisture-permeable resin and a non-woven fabric, and paper made using pulp fibers with increased beating degree, A sheet-like specially processed paper coated with a deliquescent moisture-absorbing salt (for example, lithium chloride or calcium chloride) can be used.

  Further, the sealing rib 21, the holding rib 22, the jumping rib 23, the connection sealing rib 31, the connection holding rib 32, and the connection jumping rib 33 are made of an integrally molded resin and are provided on the partition plate 11.

  Next, a method for manufacturing such a unit element 10 will be described. A molding die is prepared in which the shapes of the front and back surfaces of the unit element 10 are dug into the cavity and the core, respectively. The shape of the unit element 10 is obtained by sandwiching and molding the partition plate 11 in this molding die. At this time, as shown in FIG. 9, for example, the molding resin is injected at the gate from the position of the gap 22c constituting the positioning mechanism provided on the surface of the partition plate 11. The injected resin flows radially through the holding rib 22 and the connection holding rib 32 toward the outside of the unit element 10. The resin flowing through the holding rib 22 breaks the partition plate 11 and flows into the connecting jump rib 33 existing on the way, and then travels to the jump rib 23 (in some cases, the connection jump rib 33 and the jump rib 23 are repeated several times. And finally flow to the outer connection sealing rib 31.

  Similarly, the resin injected from the gate flows through the connection holding rib 32, breaks the partition plate 11, flows into the flying rib 23 in the middle, and then travels to the connecting flying rib 33 (in some cases, the flying rib 23, It finally flows to the outer sealing rib 21 (repeated several times through the connecting jump rib 33).

  Thereafter, by solidifying the resin, as shown in FIG. 9, the sealing rib 21, the holding rib 22, the jumping rib 23, the connection sealing rib 31, the connection holding rib 32 and the connection jumping rib 33 are integrally partitioned. Unit elements 10 formed on both surfaces of the plate 11 are formed. As described above, the resin flows so as to sew while breaking the partition plate 11, and therefore, particularly at the broken portion, the bonding strength between the resin and the partition plate 11 is very strong, and environmental stress resistance can be obtained.

  Then, the manufactured unit element 10 is arranged in the Z direction so that the extending direction of the rib on the surface rotates 90 degrees with respect to the extending direction of the rib on the surface of the unit element 10 arranged below. . At this time, it is overlapped so that the connection portion 32c of the connection holding rib 32 on the back surface of the unit element 10 disposed above fits in the gap 22c of the holding rib 22 on the surface of the unit element 10 disposed below. By performing this process until a predetermined number of unit elements 10 are stacked, the total heat exchange element 1 is formed.

  Note that the strength of the unit element 10 can be increased by increasing the holding ribs 22 and the connection holding ribs 32. FIG. 10 is a top view showing another configuration example of the unit elements constituting the total heat exchange element according to the embodiment, and FIG. 11 is a diagram in which FIG. 10 is divided. In this example, three holding ribs are arranged between a pair of sealing ribs (sealing ribs in which the sealing ribs 21 and the connection sealing ribs 31 are integrated), and the adjacent sealing ribs and holding ribs are arranged. Three rows of jumping ribs 23 and connecting jumping ribs 33 are arranged between the adjacent holding ribs.

  Even in this case, when section A in FIG. 11 is rotated 180 degrees in the XY plane, it coincides with section C, and when section B is rotated 180 degrees in the XY plane, it coincides with section D, and section A and section B (section C and section C). The holding rib 22, the jump rib 23, the connection holding rib 32 and the connection jump rib 33 are arranged so as not to coincide with the section D). In this example, each of the sections A to D is further divided into small sections A1 to A4, B1 to B4, C1 to C4, and D1 to D4. As a result, the unit element 10 is divided into 16 small sections.

  All of the small sections belonging to the sections A to D have the same rib arrangement. That is, the small sections A1 to A4 constituting the section A all have the same rib arrangement, and the small sections B1 to B4 constituting the section B all have the same rib arrangement, and the section C. All of the small sections C1 to C4 constituting the same section have the same rib arrangement, and all of the small sections D1 to D4 constituting the section D have the same rib arrangement. As a result, region A and region C have a rotationally symmetric shape, and region B and region D have a rotationally symmetric shape.

Thus, even if the number of divisions of the unit element 10 is increased, the same effect as described above can be obtained by arranging the sections A to D obtained by dividing the partition plate 11 into four according to the above-described rules. Generally, if the number of channels between the sealing ribs 21 and 31 and the holding ribs 22 and 32 formed in the unit element 10 or the number of channels between the holding ribs 22 and 32 is m, the number of small sections N is represented by the following formula (1).
N = m ² (1)

  By taking such a shape, the total heat exchange element 1 with high productivity and high performance while suppressing the elongation of the partition plate 11 can be obtained. In the above description, the unit element 10 is configured by the square-shaped partition plate 11. However, the unit element 10 is not limited to this, and any rectangular element can be used as long as it has the characteristics of the above-described embodiment. You may be comprised by the shape partition plate. In the above example, the partition plate 11 is divided into sections by straight lines that pass through the center of the partition plate 11 and are parallel to each side. However, the partition plate 11 can be divided into four equal parts and rotated by 180 degrees to have the same shape. If it becomes, it will not ask | require especially the method of a division | segmentation.

  Below, the total heat exchange apparatus to which the total heat exchange element 1 by embodiment is applied is demonstrated. FIG. 12 is a diagram illustrating a schematic configuration of a total heat exchange device to which the total heat exchange element according to the embodiment is applied.

  The total heat exchange device 1 is accommodated in the total heat exchange device 100. Inside the total heat exchange device 100, an air supply channel 102 for supplying outdoor air into the room is formed including the first air channel 2 of the total heat exchange element 1. In addition, an exhaust flow path 103 for exhausting indoor air to the outside including the second air flow path 3 of the total heat exchange element 1 is configured inside the total heat exchange device 100. The air supply flow path 102 is provided with an air supply blower 110 that generates a flow of air from the outside to the room. In other words, the air supply blower 110 generates an air flow from the outside to the room as the first air flow 106 via the air supply flow path 102 (first flow path 2). The exhaust flow path 103 is provided with an exhaust blower 120 that generates a flow of air from the room toward the outside. That is, the exhaust blower 120 generates an air flow that goes from the room to the outside through the exhaust flow path 103 (second flow path 3) as the second air flow 107.

  When total heat exchanger 100 is operated, supply air blower 110 and exhaust air blower 120 operate. Thus, for example, cold and dry outdoor air is passed as a supply airflow (first airflow 106) through the air supply passage 102, and warm and humid indoor air is exhausted as an exhaust airflow (second airflow 107). It is passed through the flow path 103. Each airflow (two types of airflows) of the supply airflow and the exhaust airflow flows through the partition plate 11 of the total heat exchange element 1. At this time, heat is transmitted between the airflows via the partition plate 11, and water vapor passes through the partition plate 11, whereby sensible heat and latent heat are exchanged between the supply airflow and the exhaust stream. As a result, the supply airflow is warmed and humidified and supplied to the room, and the exhaust stream is cooled and dehumidified and discharged outside the room. Therefore, by performing ventilation with the total heat exchange device 100, it is possible to suppress the loss of the cooling and heating efficiency of the indoor air conditioning and to ventilate the air between the outside and the room.

  In this embodiment, when the rectangular partition plate 11 is divided into four sections having the same shape and two adjacent sections are rotated 180 degrees in the XY plane, the remaining two sections are formed. In addition, ribs were provided on the partition plate 11. And as a rib, the sealing rib 21 and the connection sealing rib 31 which are arrange | positioned at the edge part of the partition plate 11, and the holding rib 22 and the connection which are arrange | positioned along the edge of the partition plate 11 within the surface of the partition plate 11 Between the holding rib 32, the sealing rib 21 (connection sealing rib 31) and the holding rib 22 (connection holding rib 32), the jump rib 23 and the connection jump rib 33 provided along the flow path P in a chopped state. And provided. As a result, the contact area between the partition plate 11 and the rib can be reduced and the heat transfer area can be increased, so that the high-performance total heat exchange element 1 can be obtained. Further, the unit element 10 can be manufactured by integrally forming ribs on the front and back surfaces of the partition plate 11 with a mold, and does not require pasting of the partition plate 11, thereby reducing the step of attaching the partition plate 11. Can do. As a result, there is an effect that productivity can be increased.

  Usually, in order to improve the performance of the total heat exchange element 1, it is necessary to make the unit element 10 thin and spread a large number of stacked layers within the same height. However, by using this shape, the thickness of the flying rib 23 and the connecting flying rib 33 is not reduced, and the contact area between the flying rib 23 and the connecting flying rib 33 and the partition plate 11 is not increased more than necessary. It becomes possible to ensure resin fluidity. As a result, it is possible to reduce manufacturing difficulty such as reduction in the number of gates during molding and ease of selection of molding resin.

  As described above, the total heat exchange element according to the present invention is useful for heat exchange between two kinds of fluids.

  DESCRIPTION OF SYMBOLS 1 Total heat exchange element, 2 1st air flow path (1st flow path), 3nd 2nd air flow path (2nd flow path), 10 unit element, 11 Partition plate, 21 Sealing rib, 22 Holding ribs, 22a, 22b, 32a, 32b ribs, 22c gaps, 23 jump ribs, 31 connection sealing ribs, 32 connection holding ribs, 32c connection parts, 33 connection jump ribs, 100 total heat exchange device, 102 air supply flow path, 103 Exhaust flow path, 106 1st air current, 107 2nd air current, 110 Supply air blower, 120 Exhaust air blower, P, P1, P2 flow path.

Claims (5)

Resin provided on both sides of the partition plate so as to maintain a gap between the partition plate and another partition plate adjacent to the partition plate in the stacking direction perpendicular to the partition plate so that the flow paths on both sides of the partition plate are orthogonal to each other A total heat exchanging element formed by laminating a plurality of unit elements in the laminating direction by rotating a unit element having a rib made of 90 degrees in the in-plane direction of the partition plate with respect to other unit elements,
When the unit element is divided into four sections of the same shape, and the first section, the second section, the third section, and the fourth section are sequentially clockwise from one of the sections, the first section and the section The shapes of the ribs provided in the second compartment coincide with the third compartment and the fourth compartment, respectively, when rotated 180 degrees in the in-plane direction of the partition plate, and the first compartment and the second compartment are the rib shape when overlaid shape of the ribs when the superposed without rotating and with said third compartment and said fourth compartment without rotating is different,
The ribs include sealing ribs disposed at both ends of the partition plate in a direction perpendicular to the direction in which the flow path extends, and in the vicinity of the center of the width of the flow path, along the direction in which the flow path extends. Between the holding rib provided, the sealing rib and the holding rib, a plurality of them are arranged at a predetermined interval along the extending direction of the flow path, and the extending direction of the flow path of the partition plate A flying rib having a predetermined length shorter than the length , and
When the unit element is rotated and laminated so that the extending direction of the flow path on the first surface of the partition plate matches the direction of the flow path on the second surface of another unit element adjacent to the stacking direction. The first jump rib provided on the first surface of the unit element and the second jump rib provided on the second surface of the other unit element are arranged at predetermined intervals on the same axis. One or more rib rows are provided between the sealing rib and the holding rib,
The first holding rib provided on the first surface when the extending direction of the flow path of the first surface of the partition surface is overlapped so as to be orthogonal to the direction of the flow path of the second surface of the other unit element. The total heat exchange element , wherein the first holding rib and the second holding rib are arranged such that the first holding rib and the second holding rib provided on the second surface of the other unit element interfere with each other . The rib is adjacent to the stacking direction, before SL so as not to interfere with each other and the ribs of the other unit elements, the total heat exchange of claim 1, characterized in that disposed on both sides of the partition plate element.   The ribs are arranged on both surfaces of the partition plate so that the extending direction of the ribs is parallel to the flow path formed between the unit elements adjacent in the stacking direction. The total heat exchange element according to claim 1 or 2. The total heat exchange element according to any one of claims 1 to 3, wherein the spacing between the jump ribs in the extending direction of the flow path in the jump rib row is the same. A total heat exchange element according to any one of claims 1 to 4,
An air supply blower for generating a flow of airflow from the outside to the inside of the first flow path extending in the first direction provided in the total heat exchange element;
An exhaust blower for generating a flow of airflow from the room toward the outside in a second flow path extending in a second direction orthogonal to the first direction provided in the total heat exchange element;
A total heat exchange device comprising:

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