JP3125449U - Counterflow type heat exchange element - Google Patents

Abstract

Heat exchange that can increase rigidity and reduce static pressure loss in a counter-flow heat exchange element in which heat exchange members composed of a heat exchange partition membrane and a flow path forming member fixed to the partition membrane are laminated. An element is provided.
A laminated body 10 in which a heat exchange member 1 composed of a heat exchange partition membrane 7 and a flow path forming member 8 fixed to the partition membrane 7 is laminated is provided. Further, a reinforcing substrate 12 having the same shape as the heat exchange member 1 is provided on one surface and the other surface in the stacking direction of the stacked body 10 when viewed from the stacking direction. Further, the substrate 12 on the one surface side and the substrate 12 on the other surface side were connected by a reinforcing rod 13 with each heat exchange member 1 of the laminated body 10 being penetrating.
[Selection] Figure 2

Description

  The present invention relates to a counterflow type heat exchange element, and more particularly to a counterflow type heat exchange element that is incorporated in an air conditioner or an industrial device and exchanges heat between two airflows on an air supply side and an exhaust side.

Conventionally, there are many cross flow type heat exchange elements that are incorporated in air conditioning equipment and industrial equipment and exchange heat between two airflows on the air supply side and exhaust side. There are few because there is no. As shown in FIG. 7, the cross flow type heat exchange element includes a heat exchange member 40 including a heat exchange plate 41 and a corrugated plate-like flow passage forming member 42 bonded to the heat exchange plate 41. Are laminated so that their directions are alternately perpendicular to each other, it is extremely strong and a flow path is easily secured. As a result, the static pressure loss of the cross flow type heat exchange element is relatively low. A cross-flow type heat exchange element having such a configuration is described in Patent Document 1, for example.
On the other hand, the present applicant has already proposed, in Japanese Patent Application No. 2005-63648, a counterflow type heat exchange element in which a heat exchange member composed of a heat exchange partition membrane and a flow path forming member fixed to the partition membrane is laminated. .
Japanese Patent Publication No. 50-2950

As shown in FIG. 8 (a), the counter flow type heat exchange element of the present applicant has a plurality of flow path forming members 47 arranged independently in parallel. When a plurality of types of heat exchanging members 45a and 45b which are composed of the member 47 and have different flow paths 48 and 49 are simply laminated and bonded, it is not easy to maintain the shape. Further, as shown in FIG. 8B, the external force F is applied, or the partition film 46 is waved or distorted or deformed by the pressure of the air flow, and the flow channels 48 and 49 are hardly secured (the flow channel). 48 and 49 were crushed). As a result, the static pressure loss of the conventional counter flow type heat exchange element was large.
Therefore, the present invention increases the rigidity and reduces the static pressure loss in the counter flow type heat exchange element in which the heat exchange member composed of the heat exchange partition membrane and the flow path forming member fixed to the partition membrane is laminated. An object is to provide a heat exchange element to be obtained.

In order to achieve the above object, a counterflow heat exchange element according to the present invention includes a laminate in which heat exchange members each including a heat exchange partition film and a flow path forming member fixed to the partition film are stacked. In the counterflow type heat exchange element, a reinforcing substrate having the same shape as the heat exchange member as viewed from the lamination direction is provided on one side and the other side in the lamination direction of the laminate, and further, one side The substrate on the side and the substrate on the other surface side are connected by a reinforcing rod, with each heat exchange member of the laminate being in a penetrating shape.
Alternatively, in a counter flow type heat exchange element including a laminate in which a heat exchange member composed of a heat exchange partition membrane and a flow path forming member fixed to the partition membrane is laminated, A reinforcing substrate having the same shape as that of the heat exchange member when viewed from the stacking direction is provided on the side surface, the other surface, and the intermediate layer, and further, the substrate on the one surface side, the substrate on the other surface side, and the intermediate layer. The substrate is connected to each of the heat exchange members of the laminate by a reinforcing rod in a penetrating manner.

Moreover, the said reinforcement rod makes the said flow-path formation member of the said laminated body penetrated.
Further, when viewed from the stacking direction, the heat exchange member and the substrate have a hexagonal shape, and the reinforcing rod is disposed at the apex portion of the heat exchange member and the substrate.
Further, when viewed from the stacking direction, the heat exchange member and the substrate have an elongated hexagonal shape having parallel long sides, and the reinforcing rod is a vertex portion and a portion of the long side of the heat exchange member and the substrate. Are disposed.

The present invention has the following remarkable effects.
The counterflow type heat exchange element according to the present invention can increase the rigidity of the heat exchange element by the reinforcing rod and the substrate and prevent distortion. Thereby, even if pressure is applied to the partition film by the airflow in the air supply channel or the exhaust channel, the state in which the partition film is tight can be maintained. As a result, the air supply passage and the exhaust passage can always be secured, and the static pressure loss can be reduced.
Further, it is possible to effectively prevent displacement and peeling of the heat exchange member and the substrate.
Moreover, even if the length of the reinforcing bar is long, the deformation of the reinforcing bar can be restricted by increasing the number of stacked heat exchange members. Thereby, the state which the partition film of all the heat exchange members of the laminated body was stretched can be maintained.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments.
1 to 5, the counterflow type heat exchange element according to the first embodiment of the present invention is a heat exchange member comprising a heat exchange partition film 7 and a flow path forming member 8 fixed to the partition film 7. 1 is provided. Further, a reinforcing substrate 12 having the same shape as the hexagonal heat exchange member 1 when viewed from the stacking direction is provided on one surface and the other surface of the stack 10 in the stacking direction.

The heat exchange member 1 will be described in detail. As shown in FIG. 3, the partition film 7 is formed in a hexagonal shape by a right-angled square part 15 and triangular parts 14 and 14 connected to both ends of the right-angled square part 15. ing. The partition film 7 is formed of paper, plastic film, metal foil or the like having a thickness of 10 to 100 μm.
If a material having both moisture permeability and gas shielding properties is used as the material of the partition film 7, a countercurrent heat exchange element of a total heat exchange system can be obtained. The provision of gas shielding means that the dirty gas on the exhaust side and the clean gas on the supply side do not mix when performing heat exchange between the gas on the exhaust side and the gas on the supply side. As the partition film 7 having both moisture permeability and gas shielding properties, a cellophane film, a composite material obtained by laminating a cellophane film on reinforcing paper, or the like is used.

Further, the flow path forming member 8 is formed of cardboard, a resin plate, or a metal plate having a thickness of 1 to 10 mm. The flow path forming member 8 has two elongated frame members 8a and 8b and an elongated reinforcing member 8c. The frame members 8a and 8b are disposed along the edge of the partition film 7, and are provided so as to be inclined and opened left and right at both ends in the longitudinal direction of the partition film 7. In the frame members 8a and 8b, holes 17 penetrating the frame members 8a and 8b are formed at positions corresponding to the apexes of the partition film 7.
The frame members 8a and 8b are continuously fixed (adhered) to the outer peripheral side of the right-angled rectangular portion 15 and the outer peripheral side of the triangular portion 14 of the partition film 7, and are disposed at point-symmetrical positions. The reinforcing member 8c is fixed (adhered) to the partition film 7, and is disposed in parallel between the frame members 8a and 8b.
Thus, the frame members 8a and 8b and the reinforcing member 8c are separately and independently fixed to the partition film 7, and the substantially (side-down) Z-shaped air supply flow path 2 is formed by the frame members 8a and 8b and the reinforcing member 8c. (Or the exhaust flow path 3) is formed.

  The heat exchange member 1 having the above-described configuration includes two types of a first heat exchange member 1a and a second heat exchange member 1b. The first heat exchange member 1a and the second heat exchange member 1b are combined. The laminated body 10 is formed by alternately laminating. The difference between the first heat exchange member 1a and the second heat exchange member 1b is as follows. That is, the frame members 8a and 8b fixed to the partition film 7 of the first heat exchange member 1a and the reinforcing member 8c are arranged so as to be in a line symmetrical position with respect to the second heat exchange member 1b.

  In FIG. 4, A indicates the flow of air (supply air) flowing through the supply air flow path 2, and B indicates the flow of air (exhaust air) flowing through the exhaust flow path 3. The counter flow portion 4 and the cross flow portions 5 and 5 are formed by alternately laminating the heat exchange member 1a and the second heat exchange member 1b. That is, the counterflow portion 4 is a region in which air passing through the air supply passage 2 (supply air) and air passing through the exhaust passage 3 (exhaust air) flow in parallel and opposite directions to each other. This is a rectangular area. Further, the crossflow portions 5 and 5 are regions in which the supply air and the exhaust air cross and flow when viewed from the stacking direction of the heat exchange member 1 (in a plan view). It is an area.

Next, as shown in FIG. 2, the hexagonal reinforcing substrate 12 as viewed from the stacking direction is made of a plastic plate, metal plate, or wood plate having a thickness of 2 to 20 mm. A hole 6 is provided in each apex portion C of the substrate 12.
Here, in 1st Embodiment, the board | substrate 12 of the one surface side of the lamination direction and the board | substrate 12 of the other surface side are connected with the reinforcement rod 13 by making each heat exchange member 1 of the laminated body 10 into penetration shape. Yes. More specifically, the reinforcing rod 13 is made of a metal such as aluminum, iron, stainless steel, or resin, and is disposed at the apex portion C of the heat exchange member 1 and the substrate 12. At each apex portion C, both ends of the reinforcing bar 13 are fitted into the hole 6 of the substrate 12 on one side and the hole 6 of the substrate 12 on the other side, respectively, and the reinforcing bar 13 is The flow path forming member 8 (frame members 8a and 8b) has a through hole 17 formed therein.
The reinforcing bar 13 is fixed to the substrate 12 by screwing, bonding with an adhesive, fusion bonding, or the like.

Next, FIG. 5 shows a counter flow type heat exchange element according to a second embodiment of the present invention. When the number of stacked layers of the heat exchange member 1 is large, the length of the reinforcing bar 13 becomes very long, and the reinforcing bar 13 is easily bent. In 2nd Embodiment, the structure used in such a case is illustrated.
Specifically, in the second embodiment, the reinforcing substrate 12 having the same shape as the heat exchange member 1 when viewed from the stacking direction is provided on one surface, the other surface, and the intermediate layer of the stack 10 in the stacking direction. . In the second embodiment, the substrate 12a on the one side, the substrate 12b on the other side, and the substrate 12c on the intermediate layer are connected by the reinforcing rods 13 with the heat exchange members 1 of the laminated body 10 penetrating. It is the composition to do. When the number of stacked layers of the heat exchange member 1 slightly exceeds 100, it is preferable to stack the substrates 12c with the substrate 50c in the middle 50th.
Other structures are the same as those of the first embodiment.

Next, FIG. 6 shows a counter flow type heat exchange element according to a third embodiment of the present invention. In the third embodiment, the case where the hexagonal heat exchange member 1 and the substrate 12 are longer than that of the first embodiment, that is, the case where the hexagonal heat exchange member 1 and the substrate 12 are elongated hexagonal shapes having parallel long sides 11 and 11 is illustrated.
In the case of an elongated hexagonal shape, if the reinforcing rod 13 is only disposed at the apex portion C of the heat exchange member 1 and the substrate 12, the heat exchanging member 1 and the substrate 12 are not displaced or separated at the central portion of the long side 11. Prone to occur.
Therefore, in the third embodiment, the reinforcing rods 13 are disposed at the apex portion C and the long side 11 portions of the heat exchange member 1 and the substrate 12. That is, at the portion of the long side 11, the reinforcing bar 13 penetrates each heat exchange member 1, and the substrate 12 on one side and the substrate 12 on the other side are connected by the reinforcing bar 13.
Other structures are the same as those of the first embodiment.

  The present invention is not limited to the above-described embodiments, and the design can be changed without departing from the gist of the present invention. For example, in this embodiment, the heat exchange member 1 is composed of two types of a first heat exchange member 1a and a second heat exchange member 1b that are line-symmetric with each other. 10 was formed. Instead of such a laminated body 10, it is also preferable that a heat exchange member having a substantially (side-down) C-shaped flow path is inverted 180 ° and laminated alternately to constitute a laminated body.

  As described above, the counterflow type heat exchange element according to the present invention includes the laminate 10 in which the heat exchange members 1 including the heat exchange partition membrane 7 and the flow path forming member 8 fixed to the partition membrane 7 are laminated. In the counter flow type heat exchange element, a reinforcing substrate 12 having the same shape as the heat exchange member 1 as viewed from the lamination direction is provided on one surface and the other surface of the laminate 10 in the lamination direction. Since the substrate 12 on the front side and the substrate 12 on the other side are connected by the reinforcing rods 13 with the heat exchange members 1 of the laminated body 10 penetrating, the rigidity of the heat exchange element is increased by the reinforcing rods 13 and the substrates 12. And can prevent distortion. Thereby, even if pressure is applied to the partition film 7 by the airflow in the air supply flow path 2 and the exhaust flow path 3, the state in which the partition film 7 is taut can be maintained. As a result, the air supply channel 2 and the exhaust channel 3 can always be secured, and the static pressure loss can be reduced.

Further, in the counter flow type heat exchange element provided with the laminated body 10 in which the heat exchange member 1 composed of the heat exchange partition film 7 and the flow path forming member 8 fixed to the partition film 7 is laminated, A reinforcing substrate 12 having the same shape as that of the heat exchange member 1 when viewed from the laminating direction is provided on one side and the other side of the laminating direction and the intermediate layer. Further, the substrate 12 (12a) on the one side and the other side The substrate 12 (12b) and the intermediate layer substrate 12 (12c) are connected by the reinforcing rod 13 with each heat exchange member 1 of the laminated body 10 penetrating. The rigidity of the element can be increased and distortion can be prevented. Thereby, even if pressure is applied to the partition film 7 by the airflow in the air supply flow path 2 and the exhaust flow path 3, the state in which the partition film 7 is taut can be maintained. As a result, the air supply channel 2 and the exhaust channel 3 can always be secured, and the static pressure loss can be reduced.
Further, by increasing the number of stacked layers of the heat exchange member 1, the length of the reinforcing bar 13 becomes longer, and even when the reinforcing bar 13 is easily bent, the substrate 12 (12c) provided in the intermediate layer The deformation of the reinforcing bar 13 can be restricted. Thereby, the partition film 7 of all the heat exchange members 1 of the laminated body 10 can be kept taut.

  Further, since the reinforcing rod 13 penetrates the flow path forming member 8 of the laminate 10, a force for deforming the heat exchange element by the flow path forming member 8 having high rigidity in the heat exchange member 1 is used. Can be received with certainty. Further, the reinforcing rod 13 is positioned on the air supply passage 2 and the exhaust passage 3 and does not obstruct the flow.

  Moreover, since the heat exchange member 1 and the substrate 12 are hexagonal when viewed from the stacking direction, and the reinforcing rod 13 is disposed at the apex portion C of the heat exchange member 1 and the substrate 12, the heat exchange member 1 and the substrate 12 can be effectively prevented from being displaced or separated. Further, the reinforcing rod 13 is positioned on the air supply passage 2 and the exhaust passage 3 and does not obstruct the flow.

  Further, when viewed from the stacking direction, the heat exchange member 1 and the substrate 12 have an elongated hexagonal shape having parallel long sides 11, 11, and the reinforcing rod 13 has a vertex portion C and a length of the heat exchange member 1 and the substrate 12. Since it is disposed at the site of the side 11, it is possible to effectively prevent the displacement and peeling of the heat exchange member 1 and the substrate 12 in the elongated hexagonal heat exchange element when viewed from the stacking direction. Further, the reinforcing rod 13 is positioned on the air supply passage 2 and the exhaust passage 3 and does not obstruct the flow.

It is a perspective view which shows the counterflow type heat exchange element which concerns on the 1st Embodiment of this invention. It is a disassembled perspective view. It is a top view of a partition film. It is a cross-sectional top view of a heat exchange element. It is a disassembled perspective view which shows the counterflow type heat exchange element which concerns on the 2nd Embodiment of this invention. It is a top view which shows the counterflow type heat exchange element which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the conventional crossflow type heat exchange element. It is sectional drawing for description which shows the counterflow type heat exchange element which this applicant proposed previously, Comprising: (a) is sectional drawing for description which shows the state before gas flows through a flow path, (b) is gas sectional view. It is sectional drawing for description which shows a state when it is flowing through the flow path.

Explanation of symbols

1 Heat exchange member 7 Partition membrane 8 Flow path forming member
10 Laminate
11 Long side
12 Reinforcing board
13 Reinforcing bar C

Claims (5)

Counterflow type heat exchange comprising a laminate (10) in which a heat exchange member (1) comprising a heat exchange partition membrane (7) and a flow path forming member (8) fixed to the partition membrane (7) is laminated. In the element,
A reinforcing substrate (12) having the same shape as that of the heat exchange member (1) when viewed from the stacking direction is provided on one surface and the other surface of the stack (10) in the stacking direction,
Further, the substrate (12) on the one surface side and the substrate (12) on the other surface side are connected to the reinforcing rod (13) with the heat exchange members (1) of the laminate (10) being penetrating. The counterflow type heat exchange element characterized by being connected. Counterflow type heat exchange comprising a laminate (10) in which a heat exchange member (1) comprising a heat exchange partition membrane (7) and a flow path forming member (8) fixed to the partition membrane (7) is laminated. In the element,
A reinforcing substrate (12) having the same shape as that of the heat exchange member (1) as viewed from the stacking direction is provided on one surface, the other surface, and the intermediate layer in the stacking direction of the stacked body (10).
Further, the substrate (12) on the one surface side, the substrate (12) on the other surface side, and the substrate (12) on the intermediate layer penetrate each heat exchange member (1) of the laminate (10). A counter flow type heat exchange element characterized by being connected by a reinforcing rod (13) as a shape.   The counterflow type heat exchange element according to claim 1 or 2, wherein the reinforcing rod (13) has a shape that penetrates the flow path forming member (8) of the laminate (10).   When viewed from the stacking direction, the heat exchange member (1) and the substrate (12) are hexagonal, and the reinforcing rod (13) is the apex portion of the heat exchange member (1) and the substrate (12). The counterflow type heat exchange element according to claim 1, 2 or 3, which is disposed in (C).   When viewed from the stacking direction, the heat exchange member (1) and the substrate (12) are elongated hexagonal shapes having parallel long sides (11) (11), and the reinforcing rod (13) The counterflow type heat exchange element according to claim 1, 2 or 3, wherein the counter flow type heat exchange element is disposed at the apex portion (C) and the long side (11) of the member (1) and the substrate (12).

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