JPH0534087A - Heat exchanging element - Google Patents

Abstract

PURPOSE:To facilitate the handling of a heat exchanging element even when only one kind of unit member is used and a liner is formed of paper material by a method wherein both rim members are extended on both surfaces of liners constituting the unit member of a heat exchanging element in directions intersecting with each other while the total sum of respective heights of both rim members is specified. CONSTITUTION:A heat exchanging element E is formed of a multitude of unit members U built up in a multilevel while two kinds of fluid, between which heat exchange is effected, are conducted in directions intersecting with each other. In this case, respective unit members U are constituted of a square liner 10, made of paper material, and the group of ribs 11 consisting of a multitude of ribs 11a fixed in parallel at predetermined intervals so as to difine the flow passages of the fluid. First rim members 12, extending in parallel to respective ribs 11a, are arranged on both sides of the group 11 of the ribs. Further, second rim members 13, extending in a direction intersecting with the first rim members 13, extending in a direction intersecting with the first rim members 12, are arranged on the other side of the square liner 10. The total sum of respective heights h1, h2 of the first and second rim members 12, 13 is so set as to become equal to the height of respective ribs 11a.

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 having a laminated structure.

[0002]

2. Description of the Related Art As a heat exchange element, a countercurrent type, a counterflow type or an orthogonal type (oblique type) is known because of the difference in flow type of two fluids to be heat-exchanged. As a heat exchange element used in the apparatus, a counterflow type or an orthogonal type is usually adopted. The basic structure is that a liner made of thin paper or the like for partitioning two fluids to be heat-exchanged is laminated with corrugated plate-like spacers made of pressure paper or the like forming a plurality of parallel flow paths sandwiched therebetween, and the whole is corrugated cardboard paper. It has a shape of structure.

This heat exchange element is manufactured by adhering a spacer obtained by cutting a long corrugated plate to a liner obtained by cutting a long corrugated plate. When cutting in a direction that is not parallel to the peaks and valleys, the corrugation of the end face is likely to be crushed, and in the air-to-air heat exchanger, the pressure loss is large due to the deformation of the end face during cutting. In addition, there is a problem in that the yield of the material is poor because a predetermined size and shape are obtained by cutting.

In order to solve such a problem, for example, as shown in Japanese Unexamined Patent Publication No. 61-186795, a linear plate has a row of linear ribs on one heat transfer surface at predetermined intervals. There is provided a heat exchange element constituted by stacking a plurality of unit members arranged in the above.

[0005]

It is preferable to use a paper material such as thin paper as the material of the liner which constitutes the unit member of the heat exchange element because of its excellent heat conductivity and moisture permeability and low cost. However, when the liner is made of a paper material, the unit member of the heat exchange element has ribs only in one direction, and therefore is easily deformed by bending in the direction intersecting with the ribs. Such a unit member, which is easily deformed, is difficult to carry and handle, and it takes more time to manufacture.

The present invention has been made in view of the above problems, and an object thereof is to provide a heat exchange element which is easy to handle even when the liner is made of a paper material.

[0007]

In order to achieve the above-mentioned object, a heat exchange element according to the present invention is formed by stacking unit members in multiple stages, and a direction in which two fluids to be heat-exchanged intersect each other. In the heat exchange element to be flowed to, the unit member is a rectangular liner made of a paper material, and is fixed to one surface of the liner substantially in parallel at a predetermined interval to define a plurality of fluid flow passages. A rib group composed of ribs, a first edge member fixed to both sides of the rib group on one surface of the liner, and extending substantially parallel to each rib, and a first edge member fixed to the other surface of the liner. A second edge member extending in a direction intersecting with the edge member, so that the sum of the height of the first edge member and the height of the second edge member is equal to the height of the rib. The feature is that it is set.

[0008]

According to the heat exchange element having the above construction, the first edge member is fixed to one surface of the liner which constitutes the unit member of the heat exchange element, and the first edge member is attached to the other surface of the liner.
Since the second edge member extending in the direction intersecting with the edge member is fixed, it is hard to be deformed by bending in all directions and is excellent in strength. Therefore, the unit members can be easily handled when the unit members are stacked to manufacture the heat exchange element, and the manufacturing operation can be easily performed.

Further, since the sum of the heights of both edge members is set to be equal to the height of the ribs, heat exchange is performed by alternately laminating one kind of unit member in 90 ° directions. Elements can be constructed.

[0010]

Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments. FIG. 1 is an overall perspective view of a heat exchange element E as one embodiment of the present invention, and FIG. 2 is a unit member U thereof.
It is a schematic perspective view showing. With reference to these drawings, the heat exchange element E is a cross-flow type in which fluids to be heat-exchanged flow in directions orthogonal to each other. The unit member U includes a liner 10 formed in a square shape.

The liner 10 has both heat conductivity and moisture permeability, and is based on, for example, Japanese paper.
It is a paper material such as thin paper of about 2 mm impregnated with calcium chloride or lithium chloride to impart water absorption, and it partitions two fluids to be heat-exchanged. Liner 10
As for the shape of, a square shape such as a rhombus or a rectangle can be adopted in addition to the square shape as in the present embodiment.

A plurality of ribs 11a are provided on the upper surface of the liner 10.
Are bonded, and a rib group 11 is formed by these ribs 11a. The ribs 11a are made of a non-metallic material having a good bonding property with the liner 10, and are arranged substantially parallel to one side of the liner 10 with a certain distance therebetween. Examples of the material of each rib 11a include a polymer material (plastic), ceramics, a fiber material, wood, paper material and the like.

When the unit members U are stacked, the liner 10,
As the height H of the rib 11a that defines the interval between 10,
The pitch between the ribs 11a and 11a is preferably about 10 to 50 mm. If the double-row parallel flow passage defined by these elements is too large, the rectification effect in the flow passage is small, and if it is too small, the pressure loss in the flow passage becomes large. ,
It is set within the above range.

A first edge member 12 which is substantially parallel to the rib 11a is adhered to both side portions of the upper surface of the liner 10 extending along both sides of the rib group 11, and the liner 1
A second edge member 13 is bonded to both side portions of the lower surface of 0 extending along the direction intersecting the rib 11a. Each of the edge members 12 and 13 is formed of the same material as that of the rib 11a, and the width W at both ends thereof is set wider than that of the rib 11a. Here, the heights h1 and h2 of the edge members 12 and 13 are respectively set to half the height H of the ribs 11a, and when the unit members U are stacked, the first unit member U of the lower unit The edge material 12 and the second edge material 13 of the upper unit member U are laminated in a state of being in close contact with each other.
In this embodiment, notches g are provided at the portions of the edge members 12 and 13 that form the four corners of the heat exchange element E, and bolts (not shown) are provided at the side portions of the heat exchange element E in the notches g. The heat exchange element E can be assembled easily and quickly.

According to the above construction, the heights h1 and h2 of the edge members 12 and 13 are set to be half the height H of the ribs 11a, so that one unit member U shown in FIG. By stacking the other unit members U by alternately changing the direction by 90 °, the heat exchange element E as shown in FIG. 1 can be configured with one type of unit member U. As described above, in this embodiment, the first edge member 12 is adhered to the upper surface of the liner 10, and the first edge member 12 is adhered to the lower surface of the liner 10.
Since the second edge member 13 extending in the direction intersecting with the unit member U is adhered, the unit member U is less likely to be deformed by bending in any direction, and thus the unit member U can be conveniently handled such as carried. , Simplifies manufacturing work.

Further, in this embodiment, each edge member 12,
In the part of 13 which constitutes the four corners of the heat exchange element E,
Since the notch g is provided so that the bolt can be attached to the notch g from the side of the heat exchange element E, the positioning at the time of assembly is facilitated and the number of stacking steps is reduced.
Therefore, the heat exchange element E can be easily and quickly assembled, and the manufacturing cost is significantly reduced.

The above-described embodiment is merely a preferred embodiment of the present invention. For example, the height h1 of the first edge member 12 and the second
In setting the sum of the height h2 of the edging material 13 and the height H of the rib 11a to be equal, the height h2 of the second edging material 13 is set higher than the height h1 of the first edging material 12. Needless to say, various modifications can be made without departing from the scope of the invention.

[0018]

As described above, according to the heat exchange element of the present invention, the first edge member is fixed to one surface of the liner forming the unit member of the heat exchange element, and the other surface of the liner is fixed. In addition, since the second edge member extending in the direction intersecting with the first edge member is fixed, the second edge member is not easily deformed by bending in all directions and is excellent in strength. Therefore, the unit members can be easily handled when the unit members are stacked to manufacture the heat exchange element, and the manufacturing operation can be easily performed.

Further, since the sum of the heights of both edge members is set to be equal to the height of the rib, the first edge member of one unit member and the second edge member of the other unit member. By stacking the unit members in a state where they are in close contact with each other, it is possible to configure the heat exchange element with one type of unit member. Therefore, according to the present invention, it is possible to provide a heat exchange element that is easy to handle even when the liner is made of a paper material.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat exchange element according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a unit member constituting the heat exchange element.

[Explanation of symbols]

 U unit member 10 Liner 11 Rib group 11a Rib 12 First edge material 13 Second edge material h1 Height of first edge material h2 Height of second edge material H Rib height

Claims (1)

Claim: What is claimed is: 1. A heat exchange element which is formed by stacking unit members (U) in multiple stages and flows two fluids to be heat-exchanged in a direction intersecting with each other. Is a rectangular liner (10) made of paper material and a plurality of ribs (11a) fixed to one surface of the liner (10) substantially parallel to each other at predetermined intervals to partition the fluid flow path. And a first edge member (12) fixed to both sides of the rib group (11) on one surface of the liner (10) and extending substantially parallel to the ribs (11a).
And the first edge member fixed to the other surface of the liner (10).
A second edge member (13) extending in a direction intersecting with (12), the height (h1) of the first edge member (12) and the height of the second edge member (13).
A heat exchange element, wherein the sum of (h2) and the height (H) of the rib (11a) is set to be equal.