JPH02217789A - Heat exchanging element and heat exchanger - Google Patents

Abstract

PURPOSE:To increase a heat exchanging area and improve a heat exchanging efficiency by a method wherein heat exchange between a fluid, lowing through a first passage, and another fluid, flowing through a second passage, is effected through corrugated plates provided with a multitude of recessed and projected grooves. CONSTITUTION:The gap of a first passage 8 is formed between the projected groove 5 of a corrugated plate 6 at one side and the recessed groove 4 of the other corrugated plate 7 at the other side in an unit body 2. Upon laminating a plurality of unit bodies 2, corrugated end spacers 10, 10 are interposed between the unit bodies 2,... at both lengthwise ends of the recessed and projected grooves 4, 5 so as to be opposed to the recessed and projected grooves 4, 5 to keep spaces between the unit bodies 2, 2 while the lengthwise both ends of the recessed and projected grooves 4, 5 are sealed by the end spacers 10, 10 to form a second passage 9, orthogonal to a first passage 8, by the neighboring unit bodies 2, 2 and both spacers 10, 10. Heat exchange is effected between a fluid flowing through the first passage 8 and another fluid flowing through the second passage 9 through the corrugated plates 6, 7.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a heat exchange element and a heat exchange device, and more particularly, to a heat exchange element and a heat exchange device, which perform heat exchange between two fluids having different temperatures, for example.
The present invention relates to a heat exchange element used in a ventilation device or a preheater, and a heat exchange device equipped with the heat exchange element.

(Prior art) Conventionally, as a heat exchanger equipped with this pole heat exchange element and the heat exchanger, the one described in Japanese Patent Publication No. 19990/1983 is known, for example, and the one described in this publication As schematically shown in FIG.
) are placed on both sides of the spacer plate (B), and the corrugated directions of the spacer plate (B) are perpendicular to each other, so that the airflow hole CD) allows the airflow to flow in the direction of the arrow (C), and the airflow hole CD) allows the airflow to flow in the direction of the arrow (E). A vent hole (F) is formed through which the air flows, and heat is exchanged between the air flow flowing in the direction of the arrow (C) and the air flow flowing in the direction of the arrow (E) via the partition plate (A). There is.

(Problems to be Solved by the Invention) By the way, in the heat exchanger of the prior art described above, since heat is exchanged through a plurality of flat partition plates (A), the heat exchange area is small, and therefore the heat exchange efficiency is low. There is a bad problem. still,
In order to increase heat exchange without increasing the size of the heat exchanger, that is, to improve heat exchange efficiency, it is possible to narrow the interval between the partition plates (A) and increase the number of stages. , ) becomes narrower, the flow path resistance of the ventilation holes (D) and the ventilation holes (F) increases and the passages become clogged, and as a result, there is a limit to the improvement of heat exchange efficiency. there were. Furthermore, since the directions of the waveforms of the spacer plates (B) adjacent to each other with the partition plate (A) interposed therebetween are arranged so as to be perpendicular to each other, when a large number of partition plates (A) are stacked, the stacking Since the direction of the spacer plate (B) must be rotated 901 times and the waveform forming directions must be changed by 90° each time, there is a problem that lamination is time-consuming and the dedicated machine for mass production becomes more complicated. Ta.

The present invention was developed in view of the above circumstances, and its purpose is to improve heat exchange between fluids with different temperatures by focusing on the fact that the surface area of a corrugated sheet is larger than that of a flat sheet. The purpose of the present invention is to provide a heat exchange element that allows heat exchange to be carried out through a large corrugated plate and has a high heat exchange efficiency (and is easy to manufacture). The point is that we are trying to provide equipment.

(Means for Solving the Problems) In order to achieve the above object, the heat exchange element of the present invention has a pair of corrugated plates (E3 ) (7), and the uneven stripes (4
) (5) are in the same direction, and a plurality of single elements (2) are joined so as to form gaps between the uneven lines (4) and (5)... in the direction of the uneven lines (4) and (5). are stacked in the same direction to form a plurality of first passages (8) extending in the length direction of the uneven strips (4), (5,), and between each of the single bodies (2)... , and the uneven strip (4
) (5) Wave-shaped end spacers (1
0) (10) is interposed and sealed, and a second passage (
9), and the first passage (8) and the second passage (9)
The fluid flowing through the corrugated plates (6), (7), etc. is heat exchanged through them.

Between the single element (2)... there are uneven stripes (4) (
5) It is preferable to interpose at least one uneven intermediate spacer (11) in the longitudinally intermediate portion.

In addition, each corrugated plate (
It is effective to interpose a flat partition plate (3) between the corrugated plates 6 and 7, which is connected to the groove bottom and the convex top of each of these corrugated plates (6) and (7).

Furthermore, a pair of corrugated plates (6) (7) are formed into uneven strips (4) (5).
Each of the above-mentioned single elements (2
)... is the uneven strip (4) in each of these single units (2)
(5) When stacking layers with the pitch shifted by half a pitch,
It is preferable that the ends of each of the corrugated plates (6) and (7) in the concavo-convex direction end at a position where the bottom of the groove and the top of the convex line join.

In addition, the end surfaces of the end spacer (lO)... at both ends in the length direction are flat surfaces in the same direction as the stacking direction of the element unit (2)... and the corner member (14) is joined. It's convenient.

And the heat exchange element (1) configured as above
This is applied to a heat exchange device that includes an air supply passage (29) and an exhaust passage (30) and exchanges heat between the supply and exhaust air. For example, when used in a ventilation system, the air supply passage (29) and the exhaust passage (30), the heat exchange element (1) is arranged, and the single unit (2).
...The second passageway (9) formed in between is connected to the air supply passageway (
29), and when used as a preheater, the air supply passage (29) and the exhaust passage (30)
The heat exchange element (1) is arranged at the intersection with the
The single body (2)...the second passageway (9) formed between
It is preferable to communicate with the exhaust passage (30).

(Function) Heat exchange between the fluid flowing through the first passage (8) and the fluid flowing through the second passage (9) is achieved through corrugated plates (6) (7) equipped with a large number of uneven stripes (4) (5). , the heat exchange area increases, and the wave-shaped flow of the fluid flowing through the second passage (9) improves the heat transfer coefficient, improving the heat exchange efficiency. 2)... Since the directions of the uneven stripes (4) and (5) are the same, the single body (2)
)... can be easily stacked using a progressive feeding device in the same direction.

In addition, the uneven intermediate spacer (11) can maintain the distance between the stacked elements (2) (2), and the intermediate spacer (11) can also act as a guide in the width direction of the fluid in the second passage (9). This makes it possible to reliably prevent drifting.

Further, when the unit (2) is constructed using a flat partition plate (3), the strength of each element unit (2) is improved, and when the uneven strips (4) and (5) are directly joined. Its production is simpler than that of .

Furthermore, the uneven stripes (4) (5) of the pair of corrugated plates (6) (7)
Each element (2) is joined by facing each other.
. . are laminated with the uneven pitches (4) and (5) shifted by half a pitch, and at both ends of the corrugated plates (6) and (7) in the uneven direction, there is a gap between the adjacent single pieces (2) and (2). Since an opening that expands outward is formed in the second passageway (9), the opening of the second passageway (9) can be widened, and the second passageway (9) ends at a position where the bottom of the concave groove and the top of the convexity join. Since the fluid does not flow between the concave stripes (4) and the protrusive stripes (5) of each unit (2) on the fluid inflow side end face of the fluid inflow side, the fluid tries to flow into the second passage (9). This reduces fluid inflow resistance.

Also, the end spacer (10)... has a corner member (14) whose end surfaces at both ends in the length direction are flat surfaces.
Since the corner member (14) and the end spacer (10) are joined, it becomes easier to join the corner member (14) and the end spacer (10), and the end spacer (10) adjacent to the upper and lower ends is formed at the longitudinal end of the (10). The opening expanding outward is connected to the corner member (1).
4) can be closed from the outside, preventing communication between the first passage (8) and the second passage (9), and improving sealing performance.

The heat exchange element (1) configured as described above is incorporated into a heat exchange device, which is used as a ventilation device, for example, and is equipped with an air supply passage (29) and an exhaust passage (30), and is installed in a second passage (9).
) is communicated with the air supply passage (29), the second passage (9)
Since the fluid flowing through the air flow path (29) flows along the unevenness, the length of the flow path becomes longer and the flow flows in a wave shape, resulting in greater noise attenuation, making it possible to muffle the sound of the air supply passage (29) and improving heat exchange efficiency. This allows quiet ventilation.

Further, the heat exchange element (1) is connected to the air supply passage (29).
) and an exhaust passage (30), for example, in a hot water system consisting of a boiler with a burner, etc. By incorporating it into a heat exchange device used as a four-unit heat exchanger and communicating the second passage (9) with the exhaust passage (30), the exhaust passage (30) can be muffled with high heat exchange efficiency, and combustion noise can be reduced. It is.

(Example) FIG. 1 schematically shows a heat exchange element (1) according to the present invention, which is constructed into a hexahedral shape by laminating a plurality of element units (2).

As shown in an enlarged view in FIG. 2, this element (2) is bonded to a rectangular flat partition plate (3) and to both upper and lower surfaces of the partition plate (3). It is formed from a pair of rectangular corrugated plates (6) and (7) having heat conductive properties and having a large number of concavo-convex strips (4) and (5) arranged in a pinch. Each of the corrugated plates (6) and (7) in diJ has the above-mentioned uneven stripes (4).
(5) are the same direction, and the one shown in Fig. 1.2 is the concave strip (4) of the corrugated plate (6) that is adhered to the negative side of the flat partition plate (3). and the ridges (5) of the corrugated plate (7) to be adhered to the other side correspond to each other.

Therefore, in the single body (2), there is a first passage ( 8) is formed.

On the other hand, a plurality of the individual units (2) are stacked, and during this stacking, between the individual units (2)...
At both lengthwise ends of the uneven strips (4) and (5),
Wave-shaped end spacers (10) (10) corresponding to the uneven stripes (4) (5) are interposed to maintain the spacing between the adjacent units (2) (2) in the lamination direction, and Both lengthwise ends of the uneven strips (4) and (5) are fixed by the end spacers (10) and (10), and the adjacent single pieces (2
) (2) and both spacers (10) (10) form a second passage (9) perpendicular to the first passage (8), and the fluid flowing through the first passage (8), It is configured such that heat exchange is performed with the fluid flowing through the second passage (9) via the corrugated plates (6) and (7).

Therefore, the lamination of the single element (2) includes the protruding strips (5) of the corrugated plate (6) on the single element (2) of the underwear, and the four strips (5) of the corrugated plate (7) on the single element (2) of the upper layer.
4), and each of the above single units (
2) A corrugated second passageway (9) is formed therebetween.

In addition, each unit (2) mentioned above is each unit (2) in contact with the top and bottom.
The spacer (10 ) (10), but as shown in FIG. May be displaced.

The one shown in Figure 1.2 is a residual heat exchange element, and the flat partition plate (3) constituting the element (2) is made of, for example, kraft paper, which is a flame retardant material. For the corrugated plates (6) and (7), paper with hygroscopicity, flame retardancy, and heat conductivity, such as paper impregnated with a hygroscopic agent such as lithium chloride or silica gel, is used. Although it is made in a triangular shape so that it can be exchanged, it is also possible to use a wave shape.

In addition, although a hygroscopic material was used for the corrugated plate 13) (7), a material that is not hygroscopic but has heat conductivity, such as a metal plate such as aluminum, is used to exchange only temperature, that is, sensible heat. It may be used only for collection. In the case of this sensible heat exchange, it can be used for sensible heat exchange between gases and other liquids, or between gases and liquids.

In addition, in FIG. 1, (3a) is a closing plate, which is located at the upper and lower parts of the stack of the unit (3), and which closes one of the pair of corrugated plates (El) (7) constituting the unit (3). It is composed of what has been removed.

In addition, the end spacer (10) (
10) In between, there is an uneven intermediate spacer (
11) to maintain the spacing between the adjacent units (2) and (2) in the middle, and to maintain the distance in the longitudinal direction of the uneven strips (4) and (5) of the fluid flowing into the second passage (9). This is to prevent drifting. Furthermore, the ends of each unit (2) in the direction orthogonal to the uneven strips (4) and (5) are all connected to the grooved strips ( 4) and the convex strip (5) of the corrugated plate (7) to be adhered to the other side are both cut so that they end where they contact the flat partition plate (3), and as shown in FIG. (2) are laminated with the uneven stripes (4) and (5) shifted by half a pitch, and at the end of the unit (2) that is shifted by a half pitch, the unit (2) adjacent to the unit (2) is stacked. ) (2), an opening that expands outward can be formed, and the opening of each of the second passages (9) can be widened.

As a result, when fluid is allowed to flow into each of the second passages (9), the inflow resistance can be reduced. In addition, since the individual units (2) are stacked with a half-pitch shift, they can be made into the same shape with the same dimensions, which improves productivity, and the ends of each unit (2) have a closed shape. Therefore, there is an advantage that end face treatment of the cut end face is not necessary.

Further, when forming the single body (2), the partition plate (3
), but as shown in FIG. 5, the corrugated plates (6) may be adhered to only one side of the partition plate (3), The size of (3) is set to twice the length of the corrugated plate (6) in the direction of the uneven strips, and the central part in the length direction is Without cutting the flat partition plate (3),
It can also be easily produced by cutting (12) only the corrugated plate (6) and folding back the flat partition plate (3) around the cut portion of the corrugated plate (6).

Further, as shown in FIGS. 6(a) and 6(b), flat surfaces (13) parallel to the direction in which the single bodies (2) are stacked are formed at both lengthwise ends of the end spacer (10). An angled corner member (14) is attached thereto. This corner member (14) is used to reinforce the corner portion and improve sealing performance at the corner portion, and can be easily attached to the flat surface (13).

As shown in Figure 1, fluid is supplied to the first passage (8) and second passage (9) of the heat exchange element (1) configured as above in the direction of the dotted arrow, and to the second passage (9). When a fluid having a temperature different from that of the above fluid flows in the direction of the solid line arrow, the uneven lines (
4) Since heat exchange is performed through (5), and the heat exchange surface is corrugated, heat exchange is performed over a larger area than when heat is exchanged through a flat surface. This improves heat exchange efficiency. Moisture exchange is also carried out in the same way.

Furthermore, since the directions of the uneven stripes (4) and (5) are all the same, there is no need to change the directions of the corrugated plates (6) and (7), and the heat exchange element (1) can be manufactured easily. It will become. In addition, an intermediate spacer (process 1) can be added as necessary.
), it is possible to prevent uneven flow of the fluid in the second passageway (9), and the end spacer (1
0) According to (10), each of the above-mentioned single units (2) that are vertically adjacent to each other
Since both lengthwise ends of the uneven stripes (4) and (5) are sealed between them, the second passageway (9) can also be reliably sealed.

In the embodiment shown in FIGS. 1 and 2, the flat partition plate (3) is used to reinforce the heat exchange element (2), but the flat partition plate (3) (Of the pair of corrugated plates (6) and (7), the concave line (4) on one corrugated plate (6) and the convex line (5) on the other corrugated plate (7)
It may also be configured by directly joining them.

Furthermore, when joining the corrugated plates (6) and (7) to both upper and lower surfaces of the flat partition plate (3) constituting the element unit (2), as shown in FIG. 3)
The concave stripes (4) of the corrugated plate (6) to be bonded to the upper surface of the corrugated plate (6) and the protrusive stripes (5) of the corrugated plate (7) to be bonded to the lower surface of the corrugated plate (7) may be shifted by half a pitch from each other.

Next, a heat exchange device using the heat exchange element (1) configured as above will be explained.

Figure 8 shows the configuration of a ventilation system that ventilates an air-conditioned room, with an air supply port (21) and a room air intake port (22) provided on the negative side of the casing (20). On the side, an air port (23) and an outdoor air intake port (24) are provided, and the internal space of the casing (20) is separated by a partition wall (
25) to form four compartments (26). Each compartment (26) has the air supply port (21).
, the indoor air intake port (22), the exhaust port (23), and the outdoor air intake port (24) are individually communicated with each other, and the exhaust port (2
3), an exhaust fan (27) is disposed in the compartment (26) communicating with the outdoor air intake port (24), and an air supply fan (28) is disposed in the compartment (26) communicating with the outdoor air intake port (24);
The heat exchange element (1) having a first passage (8) and a second passage (9) is arranged at the intersection of the partition wall (25), and the first passage (8) is connected to the room air intake. Mouth (2
2) and the exhaust port (23) to form an exhaust passage (30), and the second passage (9) is connected to the air supply port (21).
As shown in FIG. 9, the first passage (8) is connected to the air supply passage (29) from the room.
), as shown in FIG.
) to allow air to flow into the room from outside.

In addition, (31) is the supply air fan (28) and the exhaust fan (
(27) and (32) are filters.

The air supply fan (28) and the exhaust fan (27) are used to ventilate the air conditioned room, and the same motor (31)
Therefore, it is desirable that the air blowing capacity of both fans 7 (27) (28) is the same.
It is necessary to make the pressure loss the same between the first passage (8) and the second passage (9), but since the second passage (9) has a waveform as shown in FIG. Since the pressure loss is different from that of the passage (9), the shape of the single element (2) is rectangular, the first passage (8) is in the long side direction, and the second passage (8) is rectangular in shape.
The passage (9) is arranged in the direction of the short side.

With the above configuration, the air supply and exhaust fan (26) (
27) to ventilate as shown in FIG. 8, wind noise from the air supply fan (28) is generated. Noise is attenuated in the two passages (9), and the noise from the air supply fan (28) leaking into the room is reduced.

Therefore, the air entering the room and the air exiting outdoors exchange heat through the corrugated plates (6t) and (7), and during cooling, the air entering the room has a lower temperature than the outside air, and during heating, the air entering the room has a lower temperature than the outside air. The incoming air is warmer than the outside air, saving energy needed for air conditioning and providing quiet ventilation. Furthermore, if the unit (2) is formed using corrugated paper having heat conductivity and moisture permeability, moisture exchange can be performed simultaneously with heat exchange, and comfortable ventilation can be achieved.

What is shown in FIG. 11 is a hot water system installed in, for example, a machine room (40), and a burner (41) equipped with a fan (41) that forcibly supplies air is installed in the machine room (40).
42) and a boiler (44) connected to the water supply and drainage pipes (43) (43), and one end of the boiler (44) is connected to the fan (42).
The supply air duct (4, 5) communicating with the boiler (44) and the exhaust duct (46) communicating with the boiler (44) at one end are arranged so as to intersect with each other.
) and the other ends of the exhaust duct l-(48) are connected to the outer wall (
An air supply passage (29) and an exhaust passage (30) are formed by connecting to an air supply port (48) and an exhaust port (49) provided in the air supply port (47).

Thus, a preheater (53) incorporating the heat exchange element (1) is formed, and the preheater (53) is connected to the air supply passage (
28) and the exhaust passage (30), so as to communicate the second passage (9) of the heat exchange element (1) with the exhaust passage (30), and connect the first passage (8) with the exhaust passage (30). It communicates with the air supply passage (29). Note that (52) is a fuel pipe.

With the above configuration, when the burner (42) is combusted, the first passage (8) of the heat exchange element (1)
The combustion air flowing through the burner (42) and the high-temperature combustion gas flowing through the second passage (9) exchange heat, and the temperature of the combustion air supplied to the burner (42) becomes higher than that of the outside air.
The combustion efficiency is improved, and the noise of the combustion gas is muffled by the noise damping effect of the corrugated second passage (9), reducing outdoor noise and eliminating noise pollution. Therefore, by heat exchange between the combustion gas and the combustion air, fuel can be saved in proportion to the temperature increase of the combustion air, and the combustion gas can be exhausted quietly.

(Effects of the Invention) As explained above, according to the heat exchange element of the present invention, the heat exchange area is larger than that in the conventional heat exchange through flat plates, and the The heat transfer coefficient improves due to the wave-shaped flow, and the heat exchange efficiency increases accordingly. Also, since the uneven strips (4) and (5) of each heat exchange element (2) can be stacked in the same direction, the heat exchange element The production becomes easier.

Moreover, by interposing the intermediate spacer (11), uneven flow of the fluid in the second passage (9) can be prevented and heat exchange between the individual units (2) can be made uniform. Moreover, when the element unit (2) is formed using the flat partition plate (3), the strength of the element unit (2) is improved.

Furthermore, each corrugated plate (
6) Since the concavo-convex strips (4) and (5) of the single unit (2) are stacked with the concave-convex direction ends closed by a half pitch, the fluid in the second passage (9) An outwardly expanding opening is formed at the inlet end, eliminating resistance to the fluid flowing into the second passageway (9).

In addition, since the corner member (work 4) can be joined using the flat surfaces at both longitudinal ends of the end spacer (10), the corner member (14) and the end spacer (10) can be joined together. The first passage (8) and the second passage (9) can be easily sealed, and the sealing performance can be improved.

The heat exchange element (1) configured in this manner is used as a heat exchange device in, for example, a ventilation system equipped with an air supply passage (29) and an exhaust passage (30), and the second passage (9) is used as a heat exchange device.
is communicated with the air supply passage (29), the second passage (9)
) is guided by the uneven lines (4) and (5) in a direction perpendicular to the length direction of the uneven lines (4) and (5), and flows in a wave shape, so as the length of the flow path increases, , the noise attenuation is large, the air supply passageway (29) can be muffled, and a quiet ventilation system can be provided.

In addition, air supply passages (29) arranged so as to cross each other
By disposing the heat exchange element (1) at the intersection of the exhaust passage and the exhaust passage (30), the heat exchange element (1) can also be used as a preheater, for example, in a hot water system using a burner. When applied, if the second passage (9) is communicated with the exhaust passage (30), combustion noise in the exhaust passage (30) can be muffled, and a heat exchange device for a hot water system with less noise pollution can be provided. .

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a heat exchange element according to the present invention, Fig. 2 is a perspective view of the element alone, Fig. 3 is a side view showing the lamination interval of the element itself, and Fig. 4 is a partial side view of the heat exchange element. Figure 5 is a schematic diagram showing a method of manufacturing a single element, Figure 6 is an explanatory diagram of mounting a corner member, Figure 7 is another configuration diagram of a single element, Figure 8 is an explanatory diagram of a ventilation system, FIG. 9 is a view taken along the line A-A in FIG. 7, FIG. 10 is a schematic vertical cross-sectional view of the second passage, FIG. 11 is an explanatory view of the hot water system, and FIG. 12 is a perspective view showing a conventional example. It is. (1) Heat exchange element (2) Element m body (3) Flat partition plate (4) Concave strip (5)・Convex stripes (6) (7)...Corrugated plate (8)...First passage (9)...Second passage (10)...End spacer (11)...Intermediate spacer (14)...Corner member (29)...Air supply passage (30)...Exhaust passage Fig. 1 6: ff1fA to: Female 1 Suzu -7- 11: Middle Fa"lsuN-su- I4: Corner revision → 1 (Ino 2nd figure 8

Claims (1)

[Scope of Claims] 1) Consisting of a pair of corrugated plates (6) and (7) having heat conductivity and having a large number of uneven stripes (4) and (5), the uneven strips (4)
(5) are in the same direction, and a plurality of single elements (
2) A plurality of first passages (8) are formed by stacking the uneven strips (4) and (5) in the same direction, and extending in the length direction of the uneven strips (4) and (5). At the same time, between each of the single units (2)... and between the uneven stripes (4) (
5) Corrugated end spacers (10) at both lengthwise ends
(10) is interposed and sealed, and a second passageway (9) extends in a direction orthogonal to the first passageway (8) between each of the units (2).
A heat exchanger characterized in that the fluid flowing through the first passage (8) and the second passage (9) is heat exchanged through the corrugated plates (6), (7), etc. element. 2) Single element (2)... Between the uneven stripes (4) (
5. The heat exchange element according to claim 1, wherein at least one uneven intermediate spacer (11) is interposed at the longitudinally intermediate portion of the heat exchange element. 3) Each corrugated plate (6
) (7) A heat exchange element according to claim 1, wherein a flat partition plate (3) is interposed between the corrugated plates (6) and (7) to connect with the concave bottom portion and the convex top portion of each of the corrugated plates (6) and (7). 4) Each corrugated plate (6
) (7) are the uneven stripes (4) of these corrugated plates (6) and (7).
)(5) are joined to face each other, and each element (2)... is laminated with the pitch of the uneven stripes (4) and (5) in each of these elements (2) shifted by half a pitch. The ends of each of the corrugated plates (6) and (7) in the concave and convex direction are
2. The heat exchange element according to claim 1, wherein the concave strip bottom and the convex strip top end at a joining position. 5) The end surfaces of the end spacer (10)...at both ends in the length direction are flat surfaces in the same direction as the stacking direction of the element unit (2)..., and the corner member (14) is joined. A heat exchange element according to claim 1. 6) A heat exchange device comprising an air supply passage (29) and an exhaust passage (30), and configured to exchange heat between the air supply and exhaust air,
At the intersection of the air supply passage (29) and the exhaust passage (30), a pair of corrugated plates (6) and (7) having heat conductivity and having a large number of uneven stripes (4) and (5) are provided. , said uneven strip (4) (
5) are in the same direction, and a plurality of single elements (2
) are laminated with the directions of the uneven strips (4) and (5) in the same direction, and a plurality of first passages (8) extending in the length direction of the uneven strips (4) and (5) are formed. At the same time, between each of the single units (2) and the uneven stripes (4) (5)
) with corrugated end spacers (10) (
10) is interposed and sealed, and a heat exchange element (1) having a second passage (9) extending in a direction orthogonal to the first passage (8) is disposed between each of the units (2). Then, the second
A heat exchange device characterized in that a passage (9) is communicated with the air supply passage (29). 7) A heat exchange device comprising an air supply passage (29) and an exhaust passage (30), in which heat is exchanged between the air supply and exhaust passages,
At the intersection of the air supply passage (29) and the exhaust passage (30), a pair of corrugated plates (6) and (7) having heat conductivity and having a large number of uneven stripes (4) and (5) are provided. , said uneven strip (4) (
5) are in the same direction, and a plurality of single elements (2
) are laminated with the directions of the uneven strips (4) and (5) in the same direction, and a plurality of first passages (8) extending in the length direction of the uneven strips (4) and (5) are formed. At the same time, between each of the single units (2) and the uneven stripes (4) (5)
) with corrugated end spacers (10) (
10) is interposed and sealed, and a heat exchange element (1) having a second passage (9) extending in a direction orthogonal to the first passage (8) is disposed between each of the units (2). Then, the second
A heat exchange device characterized in that a passage (9) is communicated with the exhaust passage (30).