JPH05288488A - Heat exchanging element and manufacture thereof - Google Patents

Abstract

PURPOSE:To permit reduction of pressure loss of a fluid, which flows through a flow passage, facilitate the manufacture of an element and restrain increase of the cost of the same. CONSTITUTION:A heat exchanging element 11 is constituted of a heat exchanging sheet 12 containing synthetic resin and a plurality of spacer members 13, continuous and rollable such as a straw, for example, and adhered to one side of the sheet 12 with a perdetermined space. A multitude of such heat exchanging elements 11 are laminated so that the direction of the spacer members 13 is different from each other alternately by 90 degrees whereby a heat exchanger is constituted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange element used in a heat exchanger such as an air conditioning ventilation fan and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a heat exchanger used for an air-conditioning ventilation fan or the like generally has a so-called corrugated board system. As shown in FIGS. 21 and 22, the sheet 1 for heat exchange having a rectangular shape and the corrugated partition plate 2 made of a special kraft paper containing, for example, calcium chloride are alternately arranged. A plurality of flow paths 3 and 3 orthogonal to each other are formed by stacking a large number of the partition plates 2 and alternately changing the directions of the partition plates 2 by 90 degrees.
It is arranged to carry out heat exchange between the air streams passing through 3.

However, in such a structure, the partition plate 2 is provided at the entrance of the flow path 3 between the sheets 1 and 1.
Exists over the entire width, and moreover, since a large number of narrow passages are formed between the partition plate 2 and the sheet 1, there is a problem that the passage resistance is large and the pressure loss of the air flow is large. there were.

To cope with this, as shown in FIGS. 23 and 24, for example, a heat exchange element 7 is constructed by vertically arranging a plurality of synthetic resin partitions 6 on one surface of a paper sheet 5. Then, the heat exchange element 7 is replaced by 9 with the orientation of the partition 6 alternating.
A structure in which a large number of layers are stacked with a difference of 0 degree is considered. According to this, since the flow path 8 has a rectangular shape, the pressure loss of the air flow can be reduced as compared with the above-mentioned one.

[0005]

However, in order to manufacture the heat exchange element 7 having the above-mentioned structure, a special molding is performed in which the synthetic resin (partition 6) is integrally molded with the paper (sheet 5). Since it is necessary to carry out the process, there is a problem that a large amount of equipment and a mold for manufacturing are required, and the cost is significantly increased.

Therefore, an object of the present invention is to provide a heat exchange element and its manufacturing method which can reduce the pressure loss of the fluid flowing through the flow path, can be manufactured easily and can suppress the cost increase.

[0007]

The heat exchange element of the present invention comprises:
A plurality of long and rollable spacer members are bonded and fixed to one surface of a heat exchange sheet containing a synthetic resin at predetermined intervals.

In such a heat exchange element, a step of rolling a long spacer member on a base having a plurality of grooves formed at a predetermined interval on the upper surface and setting the spacer members in the grooves. And a step of pulling out a sheet containing a synthetic resin, which is wound in a roll shape, and arranging the sheet on the base, and heating the sheet from the upper surface side with a heater to one side of the sheet. It is preferable to manufacture by a step of adhering each of the spacer members and a step of cutting the sheet into a predetermined size.

In the above heat exchange element, a positioning spacer member having the same shape as the spacer member is provided at both ends of the surface of the sheet opposite to the surface to which the spacer member is adhered, in a state orthogonal to the spacer member. When adhesively fixed and a plurality of sheets are alternately stacked so that the spacer members are orthogonal to each other, the positioning spacer members are located outside or inside the spacer member located outside the mating sheet. It is preferable that they are arranged in close proximity to each other.

Further, a plurality of spacer members each having a long and rollable shape are adhered and fixed at predetermined intervals to one surface of a heat exchange sheet containing a synthetic resin at a predetermined interval. In the element, when a plurality of sheets are alternately stacked at the end portion of the sheet so that the spacer members are orthogonal to each other, the sheet is bent to the sheet side of the adjacent partner and hits the sheet of the partner. It is advisable to provide a guide part that contacts.

Further, in a heat exchange element in which a plurality of long and rollable spacer members are adhered and fixed at a predetermined interval on one surface of a heat exchange sheet containing a synthetic resin, The sheet is formed into a rectangular shape in which the length dimension in the direction corresponding to the longitudinal direction of the spacer member is larger than the length dimension in the direction orthogonal thereto, and such a plurality of sheets are formed by the spacer member. It is advisable to adopt a configuration in which they are alternately stacked so as to be orthogonal to each other.

[0012]

According to the heat exchange element having the above structure, since a plurality of spacer members are intermittently provided on one surface of the sheet to form the flow path, compared with the conventional one using the corrugated partition plate. As a result, the pressure loss of the fluid flowing through the flow path can be reduced.

Further, since the heat exchange element has a structure in which a plurality of spacer members are bonded and fixed to one surface of the sheet, it is relatively inexpensive by the above manufacturing method unlike the one in which synthetic resin is molded on paper. It can be easily manufactured with equipment.

Further, according to the heat exchange element in which the positioning spacer member is provided on the surface opposite to the surface of the sheet on which the spacer member is provided, the plurality of heat exchange elements are arranged such that the spacer members are orthogonal to each other. When they are stacked alternately, the positioning spacer members at both ends are positioned close to the outside or the inside of the spacer member outside the mating heat exchange element. Since the spacer member and the spacer member interfere with each other, the heat exchange elements are positioned with respect to each other.

According to the heat exchange element in which the guide portion is provided at the end portion of the sheet, a plurality of heat exchange elements are alternately stacked so that the spacer members are orthogonal to each other to form a heat exchanger. When using, by arranging the guide part so as to be on the inlet side of the flow path, the fluid hitting the guide part is guided to the flow path side along the guide part, so that the flow of the fluid is further improved. Smooth and pressure loss can be further reduced.

Further, according to the heat exchange element in which the sheet is formed in a rectangular shape in which the length dimension corresponding to the longitudinal direction of the spacer member is larger than the length dimension in the direction orthogonal thereto, a plurality of heat exchange elements can be exchanged. When the elements are stacked alternately so that the spacer members are orthogonal to each other, even if there is a slight misalignment between the heat exchange elements that are vertically stacked, the outermost spacer in one heat exchange element. It is possible to prevent the member from protruding from the sheet of the heat exchange element on the other side, and thus to prevent the occurrence of air leakage when used as a heat exchanger.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 shows a heat exchange element 11 formed according to the present invention.

In this heat exchange element 11, a plurality of, in this case, six long cylindrical spacer members 13 are bonded and fixed on one surface of a rectangular heat exchange sheet 12 at predetermined intervals. It is a configuration.

The sheet 12 is made of paper containing 65 to 70% of fibers made of synthetic resin, polypropylene in this case. In addition, in recent years, this paper
It is a popular material that is also used as shoji paper. On the other hand, as the spacer member 13, a straw made of polypropylene, which is commercially available in large quantities, is used.

And, a large number of heat exchange elements 1 having such a configuration.
As shown in FIG. 2, the spacers 1 are laminated so that the directions of the spacer members 13 are alternately changed by 90 degrees so that two
It is possible to form a cross-flow type heat exchanger having one flow path 14, 14.

Next, an apparatus and method for manufacturing the heat exchange element 11 will be described with reference to FIGS. 3 and 4.

The base 15 has a base end which is attached to a fixed portion 16 by a shaft 17.
It is rotatably supported via a vertical axis, and its tip is moved up and down by an elevating device 18 composed of a hydraulic cylinder or the like. The spacer member 13 is formed on the upper surface of the base 15.
6 grooves 19 each having a V shape for setting are formed at predetermined intervals.

A hopper 20 for storing a large number of spacer members 13 is installed above the fixed portion 16, and a solenoid 21 and a guide passage 22 are provided below the hopper 20.
Is provided with a feeding device 23.
Thus, the spacer members 13 stored in the hopper 20 are sent to the base 15 side by a predetermined number.

Further, the heat exchange sheet 12 is installed on the left side of the base 15 in FIG. 3 in a state of being wound into a roll, and a chuck 24 for grasping the leading end of the sheet 12 and the chuck 24. A pulling-out device 26 including a cylinder 25 for moving the is pulled out by a constant amount. In this case, the drawing direction of the sheet 12 (the direction of arrow A) and the extending direction of the groove 19 in the base 15 (and thus the extending direction of the spacer member 13) are aligned.

A plurality of plate-shaped heaters 27 are arranged above the base 15 so as to be vertically movable. In this case, the longitudinal direction of the heater 27 is orthogonal to the extending direction of the groove 19 (extending direction of the spacer member 13). A cutting device 28 for cutting the sheet 12 into a predetermined size is provided on the right side of the base 15 in FIG.

Then, the heat exchange element 1 is manufactured by using such a device.
In order to manufacture 1, the sheet 12 is first drawn out by the drawing device 26 and placed on the base 15. Further, when the elevating device 18 lowers the tip of the base 15 to incline the base 15 and the spacer 23 is fed to the base 15 side by the feeding device 23 in this state, each spacer member 1
3 is set in each groove 19 while rolling on the base 15. When the setting of the spacer member 13 is completed in this way, the tip of the base 15 is raised by the elevating device 18 to return the base 15 to the horizontal state.

In this state, the heater 2 heated to several hundred degrees
7 is lowered and pressed from the upper surface side of the sheet 12 for several seconds. Then, the polypropylene contained in the sheet 12 is melted by the heat, and each spacer member 13 is bonded to the lower surface of the sheet 12 via the heat-melted layer. At this time, since the spacer members 13 and the heaters 27 intersect, the spacer members 13 are so-called dotted at the intersections with the heaters 27.

Thereafter, the heat exchanging element 11 shown in FIG. 1 can be manufactured by cutting the sheet 12 having the spacer member 13 adhered thereto into a predetermined size by the cutting device 28.

According to such a first embodiment, the heat exchange element 1
1 has a configuration in which a plurality of spacer members 13 are intermittently provided on one surface of the sheet 12, so that the flow path resistance can be made smaller than that of the conventional one using a corrugated partition plate, and thus the flow path 14 The pressure loss of the flowing air stream can be reduced.

In this case, since the straw is used as the spacer member 13, the inner portion 13a also acts as a flow path, and the pressure loss can be further reduced. Moreover, since the spacer member 13 can be made smaller in weight than the corrugated partition plate, the weight of the heat exchange element 11 and thus the heat exchanger can be reduced.

Further, since the spacer member 13 has elasticity, when the heat exchange elements 11 are stacked, the spacer member 13 comes into good contact with the sheet 12,
Air leakage between the spacer member 13 and the sheet 12 can be reliably prevented.

Since the heat exchange element 11 has a structure in which a plurality of spacer members 13 are adhesively fixed to one surface of the sheet 12, it is expensive to form, unlike the one in which synthetic resin is integrally formed on paper. It does not require a machine or mold and can be easily manufactured with relatively inexpensive equipment.

In this case, since the synthetic resin contained in the sheet 12 and the spacer member 13 adhered to the sheet 12 are made of polypropylene which is the same kind of material, when the sheet 12 and the spacer member 13 are adhered to each other. It has the advantage of good adhesion.

Further, even if the spacer member 13 has a circular cross-section capable of rolling, since it has elasticity, a large bonding area for the sheet 12 can be secured, and there is an advantage that more reliable bonding can be achieved. ..

Further, since the drawing direction of the sheet 12 in the roll shape (the direction of arrow A) and the extending direction of the spacer member 13 adhered thereto are the same direction, the sheet 1
There is an advantage that the bending of 2 can be corrected by the spacer member 13.

Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 shows a heat exchange element 31 formed according to this embodiment. This heat exchange element 31 differs from the heat exchange element 11 of the first embodiment in the following points.

That is, seven spacer members 13 made of straw are adhesively fixed to one surface (upper surface in FIG. 5) of the heat exchange sheet 12 as in the first embodiment. Of these, the distance L1 between the two spacer members 13a and 13b on the left end side, and the two spacer members 13 on the right end side
The distance L2 between c and 13d is the same (L1 = L2
), Substantially the same as the diameter dimension L3 of the spacer member 13 (L1
, L2 = L3) and smaller than the spacing dimension L4 between the other spacer members 13, 13 (L1, L2 <L4).

The spacer member 13 of the sheet 12 is also used.
Two spacers 32 for positioning made of straws and having the same shape as the spacer member 13 are formed at predetermined portions on both ends of the surface (lower surface in FIG. 5) opposite to the surface on which the adhesive is fixed. Adhesive fixing in a state of being orthogonal.

Here, the two positioning spacer members 32 are adhered to the sheet 12 by heating the sheet 12 with a heater in the same manner as when the spacer members 13 are adhered to each other through the heat melting layer of the synthetic resin component in the sheet 12. May be adhered together, or may be adhered using an adhesive.

Then, the above-mentioned both positioning spacer members 3
2 and 32, as shown in FIGS. 7 and 8, when the two heat exchange elements 31, 31 are stacked so that the spacer members 13 are orthogonal to each other, the upper heat exchange element 3
The two positioning spacer members 32, 32 of 1 are the two spacer members 1 on the left end side of the lower heat exchange element 31.
Two spacer members 1 between 3a and 13b and on the right end side
The position is set so as to fit between 3c and 13d.

Therefore, in this case, the positioning spacer members 32, 32 are the outermost spacer members 13a and 13d of the mating heat exchange element 31 and the outermost but not outer spacer member 13b. It is arranged so as to be close (fitted in this embodiment) to the outside of 13c.

Thus, a large number of heat exchange elements 3 having such a configuration.
As shown in FIG. 6, the spacer members 13 are alternately stacked at 90 degrees, and the spacer members 13 are stacked alternately so that the spacer members 13 are orthogonal to each other. A cross-flow heat exchanger with 14 can be formed.

According to the second embodiment, when the plurality of heat exchange elements 31 are stacked, the spacer members for positioning 32, 32 are positioned on the outer side of the heat exchange element 31 on the other side. By being configured to fit between 13b and between 13c and 13d, the following effects can be obtained.

That is, the positioning spacer member 32,
32 is between the spacer members 13a and 13b, and 13c and 1
By fitting between 3d, movement of each other is regulated and each heat exchange element 31 is positioned relative to each other, which facilitates assembly.

Further, with the heat exchange elements 31 stacked, the positioning spacer member 32 and the spacer member 13 are arranged.
Since the a, 13b, 13c, and 13d interfere with each other and their movement is restricted, the heat exchange elements 31 in the stacked state can be prevented from being displaced, and there is a binding force between the heat exchange elements 31. The advantage is that the strength in the twisting direction is great. In addition, there is also an advantage that a frame for holding the heat exchange element 31 is not necessarily required.

Furthermore, since the displacement of each heat exchange element 31 is prevented, it is possible to prevent air leakage due to the displacement of the heat exchange element 31 when used as a heat exchanger.

In the second embodiment described above, the positioning spacer members 32, 32 are connected to the heat exchange element 31 on the mating side.
The two spacer members 13a and 13b that form a pair are fitted into the spacer members 13a and 13b and the spacer members 13c and 13d that form a pair, but the present invention is not limited to this.
b, and 13c and 13d, the outermost spacer members 13a and 13d are eliminated (as a result, the remaining spacer members 13b and 13c are located on the outermost side), and the positioning spacer member 32, The configuration may be such that 32 is located close to the outer sides of the spacer members 13b and 13c located on the outermost side thereof. In addition, the spacer member 1
Positioning spacer member 3 without 3b and 13c
Spacer members 13a and 1 in which 2, 32 are located on the outermost side
It is also possible to have a configuration in which it is located close to the inside of 3d. In short, the positioning spacer members 32, 32 may be located close to the outside or inside of the spacer members on both outsides of the mating heat exchange element 31.

Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 9 shows a heat exchange element 33 formed by this embodiment. This heat exchange element 33 differs from the heat exchange element 11 of the first embodiment in the following points.

That is, a spacer member 13 made of straw is formed on one surface (upper surface in FIG. 9) of the heat exchange sheet 12.
Book glued and fixed. Then, both ends of the sheet 12 are bent in a state of being bonded so as to be wound around two spacer members 13, 13 located at both ends of the seven spacer members 13, and the sheet 12 is bent. The part thus formed is used as a guide portion 34. Note that, in FIG. 11, the adhesion points 35 and 36 are indicated by crosses for convenience.

Of the above-mentioned bonding points 35 and 36, the bonding point 36 for forming the guide portion 34 is the same as when the spacer member 13 is bonded to the sheet 12 in the first embodiment. It may be heated by a heater to be bonded via a heat-melted layer of the synthetic resin component in the sheet 12, or may be bonded using an adhesive. In this case, an adhesive may be applied between the adhesive points 35 and 36.

The guide portion 34 has a tip portion 34.
The length a is set to be the same as the upper end of the spacer member 13 or slightly upward.

Thus, a large number of heat exchange elements 3 having such a configuration.
As shown in FIG. 10, the spacer members 13 are alternately stacked at 90 degrees so that the spacer members 13 are alternately stacked so as to be orthogonal to each other.
It is possible to form a cross-flow type heat exchanger having two channels 14 that are orthogonal to each other.

At this time, the tip end portion 34a of each guide portion 34
However, it is in a state of contacting or press-contacting the lower surface of the adjacent mating seat 12, that is, the upper seat 12.

Now, when the heat exchange element 33 is used as a heat exchanger, the air is supplied to one of the flow passages 14 as shown in FIG.
1, there is a guide portion 34 at the upper portion of the inlet 14a of each flow path 14, and the air hitting the guide portion 34 flows along the guide portion 34 in the curved state. Since it is guided to the side of the passage 14, there is almost no component that backflows, and the airflow that flows through the passage 14 can smoothly flow. Therefore, the pressure loss of the airflow can be further reduced. it can.

Although the guide portions 34 are formed at both ends of the seat 12 in the above-described third embodiment, the guide portions 34 are formed only at one end of the seat 12 and the guides are formed. The part 34 may be arranged on the inlet 14 a side of the flow path 14.

12 and 13 show a fourth embodiment of the present invention, which differs from the third embodiment in the following points.

That is, in the guide portion 38 formed at the end portion of the sheet 12 in the heat exchange element 37, the tip end portion 38a thereof is located above the upper end portion of the spacer member 13 in a state before being stacked as shown in FIG. The length is set so that it projects significantly.

When a large number of heat exchange elements 37 are stacked to form a heat exchanger by the heat exchange element 37 having such a structure, the tip end portion 38a of the guide portion 38 is, as shown in FIG. The lower surface of the upper sheet 12 is strongly pressed. In this case, the region of the pressure contact portion 38b of the guide portion 38 which is in pressure contact with the seat 12 is defined as the guide portion 3 of the third embodiment.
There is an advantage that it can be made larger than the case of 4.

Also in such a fourth embodiment, it is possible to obtain the same effects as those of the above-mentioned third embodiment.

Further, FIGS. 14 and 15 show a fifth embodiment of the present invention, which is different from the third embodiment in the following points.

That is, the end portion 12a of the sheet 12 in the heat exchange element 39 is not bent in the state before being stacked as shown in FIG. 14, and is in a state of protruding laterally from the spacer member 13 existing at the end portion. Is becoming Then, as shown in FIG. 15, in a state where a large number of heat exchange elements 39 are stacked to form a heat exchanger, the end 12a of the sheet 12 is bent upward, and an adhesive is applied to the lower surface of the sheet 12 existing on the upper side. By being fixed by adhesion with 40, the guide portion 4
1 is formed.

Also in such a fifth embodiment, it is possible to obtain the same effects as those of the above-mentioned third embodiment.

16 to 19 show a sixth embodiment of the present invention.
It shows an embodiment and is different from the first embodiment in the following points.

That is, seven spacer members 13 made of straw are adhesively fixed to one surface (the upper surface in FIG. 16) of the sheet 12 in the heat exchange element 42. The sheet 12 has a length dimension La in a direction corresponding to the longitudinal direction of the spacer member 13 and a length dimension Lb in a direction orthogonal to the length dimension La.
Than the diameter of the spacer member 13 (about 2 mm)
It is formed in a rectangular shape that is larger by an amount (La> Lb).

Here, in the sheet 12, the side along the longitudinal direction of the spacer member 13 is referred to as a long side portion 12a, and the side along the direction orthogonal to the longitudinal direction of the spacer member 13 is referred to as a short side portion 12b. ..

Thus, a large number of heat exchange elements 4 having such a configuration.
As shown in FIG. 17, the spacer members 13 are alternately stacked so that the spacer members 13 are orthogonal to each other by 90 degrees, as shown in FIG.
A cross-flow heat exchanger can be formed.

At this time, a slight misalignment may occur between the heat exchange elements 42, which are vertically overlapped with each other. For example, as shown in FIGS. 18 and 19, even if one heat exchange element 42 is displaced leftward in the figure with respect to the heat exchange element 42 on the other side, the long side portion of the seat 12 on the other side Within the range of 12a (the length of the spacer member 13), in other words, the short side portions 12b, 12b of the mating sheet 12.
In the interval, the spacer member 13 on the leftmost side of the heat exchange element 42 on one side is the heat exchange element 42 on the other side.
The sheet 12 can be prevented from protruding.

By the way, in the case where the sheet 12 of each heat exchange element has a square shape, if a position shift occurs between the heat exchange elements which are vertically overlapped with each other, as shown in FIG. The spacer member 13 existing in the above is easily protruded from the sheet 12 of the heat exchange element on the other side,
If the spacer member 13 is used as a heat exchanger with the spacer member 13 protruding, an air leak (arrow C) occurs there.

In this respect, in the present embodiment, as described above, the sheet 12 of the heat exchange element 42 is replaced with the spacer member 1.
Since the length dimension La corresponding to the longitudinal direction of 3 is larger than the length dimension Lb in the direction orthogonal thereto, it is formed in a rectangular shape. Even if there is a deviation, one heat exchange element 4
It is possible to prevent the outermost spacer member 13 in 2 from protruding from the sheet 12 of the heat exchange element 42 on the other side, and thus to prevent air leakage when used as a heat exchanger.

In each of the above-mentioned embodiments, the straw was illustrated as the spacer member 13, but the spacer member is not limited to this, and for example, bamboo material in the form of a thin rod having a substantially circular cross section, so-called a large amount is commercially available. Bamboo skewers may be used. When the bamboo skewers are used as described above, there is an advantage that the bamboo skewers do not generate a toxic gas when the heat exchanger is discarded and can be treated as a combustible material.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings. For example, the spacer member 13 may have a polygonal cross section as long as it can be rolled, and the gist thereof is not deviated. It can be appropriately modified within the range.

[0072]

According to the heat exchange element of the first aspect of the present invention, a plurality of long and rollable spacer members are provided on one surface of a heat exchange sheet containing a synthetic resin. Since the adhesives are fixed at intervals, the pressure loss of the fluid flowing through the flow path can be reduced, and it can be easily manufactured with relatively inexpensive equipment, which can suppress the increase in cost. ..

According to the manufacturing method of the heat exchange element of the second aspect, the heat exchange element can be easily and satisfactorily manufactured.

According to the heat exchange element of the third aspect, when the plurality of heat exchange elements are alternately stacked so that the spacer members are orthogonal to each other, the positioning spacer members are opposed to each other. The heat exchange elements will interfere with the outer spacer members, and the heat exchange elements will be positioned relative to each other, making it easier to assemble and shifting the position of each heat exchange element in the stacked state. There is an advantage in that it is possible to prevent the above, and to increase the strength in the twisting direction.

Further, according to the heat exchange element of the fourth aspect, when a plurality of heat exchange elements are alternately stacked so that the spacer members are orthogonal to each other and used as a heat exchanger, a sheet is used. By arranging the guide portion provided at the end of the flow path so as to be on the inlet side of the flow path, the fluid hitting the guide portion is guided to the flow path side along the guide portion, so that the fluid flow is further improved. There is an advantage that it can be made smooth and the pressure loss can be further reduced.

Further, according to the heat exchange element of the fifth aspect, when a plurality of heat exchange elements are alternately stacked so that the spacer members are orthogonal to each other, the heat exchange elements are vertically stacked. Even if there is a slight misalignment between the two heat exchange elements, it is possible to prevent the outermost spacer member of one heat exchange element from protruding from the sheet of the other heat exchange element, and thus the air when used as a heat exchanger. There is an advantage that leakage can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat exchange element showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a large number of heat exchange elements are stacked.

FIG. 3 is a perspective view showing a manufacturing method.

[Figure 4] Side view of the same section

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a view corresponding to FIG.

FIG. 7 is a front view of a state before stacking two heat exchange elements.

FIG. 8 is a front view showing a state in which two heat exchange elements are stacked.

FIG. 9 is a diagram corresponding to FIG. 1 showing a third embodiment of the present invention.

FIG. 10 is a view corresponding to FIG.

FIG. 11 is an enlarged vertical cross-sectional view of a main part in a state where a plurality of heat exchange elements are stacked.

FIG. 12 shows a fourth embodiment of the present invention and is an enlarged vertical cross-sectional view of a main part before a plurality of heat exchange elements are stacked.

FIG. 13 is a view corresponding to FIG. 11.

FIG. 14 is a view corresponding to FIG. 12 showing a fifth embodiment of the present invention.

FIG. 15 is a view corresponding to FIG. 11.

FIG. 16 is a view corresponding to FIG. 1 showing a sixth embodiment of the present invention.

FIG. 17 is a plan view showing a state in which a plurality of heat exchange elements are stacked.

FIG. 18 is a diagram in which the position of one heat exchange element is displaced.
7 equivalent figure

FIG. 19 is a vertical cross-sectional view of the state of FIG.

FIG. 20 is a view showing a state in which one heat exchange element is displaced when stacking square sheets.
Corresponding figure

FIG. 21 is a diagram corresponding to FIG. 1 showing a conventional configuration.

FIG. 22 is a view corresponding to FIG.

FIG. 23 is a view corresponding to FIG. 1 showing a different conventional configuration.

FIG. 24 is a view corresponding to FIG.

[Explanation of symbols]

11 is a heat exchange element, 12 is a sheet, 13 is a spacer member, 15 is a base, 19 is a groove, 23 is a feeding device, 26 is a drawing device, 27 is a heater, 28 is a cutting device, 31, 3
3, 37, 39 and 42 are heat exchange elements, 32 is a positioning spacer member, and 34, 38 and 41 are guide portions.

Claims (5)

[Claims] 1. A heat exchange element comprising a plurality of spacer members, which are long and rollable, are adhered and fixed at predetermined intervals to one surface of a heat exchange sheet containing a synthetic resin. .. 2. A step of rolling a long spacer member on a base having a plurality of grooves formed on the upper surface at predetermined intervals and setting the spacer members in the grooves, and winding the spacer members in a roll shape. And a step of pulling out a sheet containing a synthetic resin and disposing it on the base, and a step of adhering the spacer members to one side of the sheet by heating with a heater from the upper surface side of the sheet. The method for manufacturing a heat exchange element according to claim 1, further comprising: and cutting the sheet into a predetermined size. 3. A plurality of spacer members, which are long and rollable, are adhesively fixed to one surface of a heat exchange sheet containing a synthetic resin at predetermined intervals, and at the same time, A spacer member for positioning, which has the same shape as the spacer member, is adhesively fixed to both ends of the surface opposite to the surface to which the spacer member is adhered in a state orthogonal to the spacer member. When the members are stacked alternately so as to be orthogonal to each other, the two positioning spacer members are arranged close to the outside or the inside of the spacer member positioned outside the mating sheet. A heat exchange element characterized by the above. 4. A sheet for heat exchange comprising a synthetic resin, wherein a plurality of spacer members having a long length and a rollable shape are adhered and fixed at predetermined intervals to one surface of the sheet for heat exchange, and the sheet is formed. At the end portion of the guide portion, when a plurality of the sheets are alternately stacked so that the spacer members are orthogonal to each other, the guide portion is bent toward the sheet of the adjacent partner and abuts on the sheet of the partner. A heat exchange element comprising: 5. A plurality of spacer members each having a long and rollable shape are bonded and fixed to one surface of a heat exchange sheet containing a synthetic resin at predetermined intervals, and the sheet is attached to the heat exchange sheet. The spacer member is formed in a rectangular shape whose length dimension in the direction corresponding to the longitudinal direction is larger than the length dimension in the direction orthogonal thereto, and the sheet has a form in which the spacer members are orthogonal to each other. A heat exchange element, characterized in that a plurality of sheets are alternately stacked so as to become.