JPH0478464B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a honeycomb structure. That is, the present invention relates to a honeycomb structure formed by alternately joining corrugated plate base materials and flat plate base materials and used, for example, in fluid treatment.

``Prior art'' This type of honeycomb structure is made by alternately bonding corrugated base materials in which corrugated irregularities are continuously bent and flat plate base materials to form a corrugated tube shape or a laminated block shape. Molded. Conventionally, both the corrugated base material and the flat base material constituting such a honeycomb structure have been made of plate-like thin plates such as metal foils.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out with such conventional honeycomb structures.

First, when used for fluid treatment, there was a problem of poor treatment efficiency. That is, since both the corrugated plate base material and the flat plate base material were made of plate-shaped thin plates, each cell mural formed by them was smooth and had a relatively small surface area, and there was no fluid flow between each cell. It was blocked off so that it was impossible to pass through. Therefore, when processing a fluid while passing through such a honeycomb structure, there is a problem in that the processing efficiency is poor because no turbulent flow occurs in the fluid and the contact area with the fluid is small.

Secondly, it has been pointed out that, for example, when such a honeycomb structure is used as a support base on which a catalyst is applied in a catalytic reaction device that purifies the exhaust gas of an automobile engine, the exhaust gas purification efficiency is poor. Ta.

Thirdly, since both the corrugated plate base material and the flat plate base material are made of plate-shaped thin plates, thermal distortion etc. are likely to occur as a whole when the environmental temperature rises, and the overall weight is heavy. There were also problems.

This point was pointed out in the conventional example.

In view of these circumstances, the present invention has been made to solve the problems of the conventional methods described above. The purpose of the present invention is to propose a honeycomb structure that is highly efficient, has little thermal distortion, is light in weight, and can be easily obtained in various sizes at a low cost.

"Means for Solving the Problem" The technical means of the present invention to achieve this object are as follows.

This honeycomb structure is made by alternately joining corrugated base materials in which corrugated irregularities are continuously bent and flat plate base materials. At least one of the corrugated plate base material and the flat plate base material is made of a metal wire mesh.

Further, in the honeycomb structure according to claim 2, the following is described.

That is, between the corrugated plate base material and the flat plate base material of the above-mentioned claim 1, a large number of pores are bored in the other one which is made of a thin plate instead of the wire mesh.

"Function" Since the present invention is comprised of such means, it functions as follows.

In this honeycomb structure, corrugated plate base materials and flat plate base materials are alternately joined to form a planar assembly of hollow columnar cells. At least one of the corrugated base material and the flat base material is made of wire mesh.

First, fluid processing efficiency is improved. That is, the cell wall has irregularities formed by the wire mesh, and the surface area is increased by the wire mesh. Additionally, a wire mesh allows fluid to pass between each cell. Therefore, when processing is performed while passing a fluid through such a honeycomb structure, turbulence occurs in the fluid and the contact area with the fluid is wide, so that the processing efficiency is significantly improved.

Second, even if the environmental temperature rises, thermal strain is absorbed by the wire mesh, and thermal strain is less likely to occur as a whole. The wire mesh also reduces the overall weight.

Thirdly, since these are achieved using wire mesh, it is not only cost-effective, but also allows for various sizes to be easily obtained by combining them.

Next, in the honeycomb structure of claim 2, a large number of pores are bored in a thin corrugated plate base material or a flat plate base material.

Therefore, compared to a structure using a wire mesh and a simple thin plate, the presence of pores increases the amount of fluid passing between cells and increases the turbulence, thereby further improving fluid processing efficiency. In addition, compared to a structure using a wire mesh, since a thin plate is used, the overall rigidity and strength are superior, and molding is easier.

"Example" The present invention will be described in detail below based on the example shown in the drawings.

First, its configuration etc. will be explained.

1, 2, and 3 respectively show the first and second embodiments of the present invention.
A few examples will be shown. This honeycomb structure consists of a corrugated plate base material 1 in which corrugated irregularities are continuously bent.
and a flat plate-like base material 2 are alternately joined. The corrugated plate base material 1 is corrugated using a corrugating device (not shown) or the like,
It is then bent and formed in a predetermined manner. At least one of the corrugated plate base material 1 and the flat plate base material 2 is made of a metal wire mesh.

First, as the corrugated plate base material 1 and the flat plate base material 2, those made of wire mesh shown in the following Fig. 4, and those made of wire mesh shown in Fig.
The thin plate shown in the figure is used. In other words, Figure 1 in Figure 4 is a perspective view of the wire mesh corrugated base material ₃₁ ,
FIG. 2 is a perspective view of a flat plate base material 3 ₂ made of wire mesh. Fifth
Figure 1 is a perspective view of a corrugated base material 4 ₁ made of a thin plate such as metal foil, and Figure 2 is a perspective view of a corrugated base material 4 1 made of a thin plate such as metal foil.
₂ is a perspective view of FIG. The honeycomb structure is made by appropriately selecting and combining such corrugated metal mesh base material 3 ₁ , flat wire mesh base material 3 ₂ , thin corrugated sheet base material 4 ₁ , thin flat plate base material 4 ₂ , etc. This allows three types of implementations:

First, a first example will be described. FIG. 1 shows a first embodiment of the present invention, in which a corrugated plate base material 1 is made of a thin corrugated plate base material 4 ₁ (see Figure 1 in FIG. 5), and a flat plate base material 2 is a flat plate base material made of wire mesh. It consists of 3 ₂ (see Figure 2 in Figure 4). FIG. 1 is a perspective view of a honeycomb structure formed into a corrugated tube shape, and FIG. 2 is a front view of a honeycomb structure formed into a laminated block shape.

Next, a second embodiment will be described. FIG. 2 shows a second embodiment of the present invention, in which, contrary to the first embodiment described above, the corrugated plate base material 1 is made of wire mesh corrugated plate base material 3 ₁ (fourth
The flat base material 2 is made of a thin flat base material 4 ₂ (see FIG. 5, FIG. 2).
Although this figure is a perspective view of a honeycomb structure formed in the form of corrugated tubes, it is of course possible to form the honeycomb structure in the form of laminated blocks.

Next, a third embodiment will be described. FIG. 3 shows a third embodiment of the present invention, in which a corrugated plate base material 1 and a flat plate base material 2
Both are made of wire mesh. In other words, a wire mesh corrugated base material 3 ₁ (see Figure 4, 1) is used as the corrugated base material 1, and a wire mesh flat plate base material 3 ₂ (see Figure 4, 2) is used as the flat plate base material 2. It is being Although this figure is a front view of a honeycomb structure formed in the form of a laminated block, it is of course possible to form a honeycomb structure in the form of corrugated tubes.

Three types of embodiments of the honeycomb structure are possible. Note that as the corrugated plate base material 1, a thin corrugated plate base material 4 ₁ (see Fig. 5) is used, and as the flat plate base material 2, a thin plate plate base material 4 ₂ (see Fig. 5) is used.
2), that is, a structure in which both thin plates are used corresponds to this type of conventional honeycomb structure.

By the way, the laminated block-like honeycomb structure is
It is formed by using a plurality of the above-mentioned corrugated base materials 1 and flat base materials 2 and stacking them alternately. Further, the corrugated tube-shaped honeycomb structure is formed by using the above-mentioned corrugated base material 1 and flat base material 2, each of which has a band shape, and by winding them alternately and overlapping each other. In any case of molding, the outside of the top and trough portions of the above-mentioned corrugated plate base material 1 are joined to the above-mentioned flat plate base material 2 using a bonding material such as a brazing material or an adhesive.

The above is the explanation of the configuration, etc.

The operation etc. will be explained below.

In this honeycomb structure, corrugated plate base materials 1 and flat plate base materials 2 are alternately joined to form a planar assembly of hollow columnar cells A. At least one of the corrugated plate base material 1 and the flat plate base material 2 forming the cell wall is made of wire mesh. That is, the first
In the first embodiment shown in the figure, the flat base material 2 is made of a flat base material ₃₂ made of wire mesh. In the second embodiment shown in FIG. 2, on the contrary, the corrugated plate base material 1 is made of a corrugated plate base material ₃₁ made of wire mesh. In the third embodiment shown in FIG. 3, both the corrugated plate base material 1 and the flat plate base material 2 are respectively made of a wire mesh corrugated sheet base material 3 ₁ and a wire mesh flat plate base material 3 ₂ .

Therefore, this honeycomb structure has the following first, second, and third structures.

First, fluid processing efficiency is improved. That is, the cell wall of each cell A is made of corrugated metal mesh base material 3 ₁ ,
It has irregularities due to the wire mesh flat plate base material 3 ₂ and has a wide surface area. Further, between each cell A, fluid can pass through a corrugated wire mesh base material 3 ₁ and a wire mesh flat base material 3 ₂ . Therefore, when a fluid is passed through such a honeycomb structure and treated with, for example, a catalyst applied to each cell wall, turbulence occurs in the fluid due to the above-mentioned unevenness and passage.
Moreover, since the above-mentioned surface area provides a large contact area with the fluid, processing efficiency is significantly improved.

Second, even if the environmental temperature rises, thermal strain is absorbed by the wire mesh corrugated plate base material 3 ₁ and the wire mesh flat plate base material 3 ₂ .
Thermal strain is less likely to occur in the honeycomb structure as a whole. Furthermore, the overall weight of the honeycomb structure is reduced by the wire mesh corrugated plate base material 3 ₁ and the wire mesh flat plate base material 3 ₂ .

Thirdly, since these are achieved by using the wire mesh corrugated plate base material 3 ₁ and the wire mesh flat plate base material 3 ₂ which are simply wire meshes, it is excellent in terms of cost. Furthermore, honeycomb structures of various sizes can be easily obtained by combining the wire mesh corrugated plate base material 3 ₁ , the wire mesh flat plate base material 3 ₂ , the thin plate corrugated plate base material 4 ₁ , the thin plate flat plate base material 4 ₂ , etc. .

The above is the explanation of the operation, etc.

"Others" In addition, in the first embodiment shown in FIG. 1 and the second embodiment shown in FIG.
It is conceivable that a large number of pores be formed in the flat base material ₁ or the thin plate base material ₄₂ . In this way, among the corrugated plate base material 1 and the flat plate base material 2 of the honeycomb structure of the present invention,
If a large number of pores are drilled in the corrugated metal mesh base material 3 ₁ and the flat metal mesh base material 3 ₂ , that is, the corrugated thin metal base material 4 ₁ or the flat thin metal base material 4 ₂ . ,
It becomes as follows.

First of all, compared to the first and second embodiments in which a simple corrugated thin plate base material 4 ₁ or a flat thin plate base material 4 ₂ is used without providing such pores, As more pores exist in the honeycomb structure, the amount of fluid passing between each cell A and the turbulent flow increase, and the fluid processing efficiency is further improved.

Second _, as in _{the third} embodiment shown in FIG. The presence of the flat plate base material ₄₂ , that is, the presence of the thin plate, makes the entire honeycomb structure superior in rigidity and strength, and is easier to form.

"Effects of the Invention" As explained above, the honeycomb structure according to the present invention exhibits the following effects by using a wire mesh for at least one of the corrugated base material and the flat base material.

First, when used for fluid treatment, treatment efficiency is significantly improved. In other words, since turbulent flow occurs in the fluid and the contact area with the fluid is wide, when used as a support base for coating a catalyst in, for example, a catalytic reaction device that purifies the exhaust gas of an automobile engine,
Exhaust gas purification efficiency is significantly improved.

Second, thermal distortion is less likely to occur even if the environmental temperature rises, and the overall weight is light. Thirdly, it is excellent in terms of cost and can be easily obtained in various sizes.

In addition to the above, the honeycomb structure of claim 2 is superior in fluid processing efficiency compared to a structure using a wire mesh and a simple thin plate, and has higher rigidity and strength than a structure using a wire mesh. It is better and easier to mold.

In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.

[Brief explanation of drawings]

FIG. 1 shows a first example of a honeycomb structure according to the present invention.
An example is shown in which the flat base material is made of wire mesh.
FIG. 1 is a perspective view of the same honeycomb structure in the form of a corrugated tube, and FIG. 2 is a front view of the same honeycomb structure in the form of a laminated block. FIG. 2 shows the second embodiment, and is a perspective view of a corrugated tube-shaped honeycomb structure in which the corrugated plate base material is made of wire mesh. FIG. 3 shows the third embodiment, and is a front view of a laminated block-shaped honeycomb structure in which both the corrugated plate base material and the flat plate base material are made of wire mesh. Figure 4 1
The figure is a perspective view of a corrugated wire mesh base material, and FIG. 2 is a perspective view of a wire mesh flat plate base material. Figure 1 in Figure 5 is
FIG. 2 is a perspective view of a corrugated thin plate base material, and FIG. 2 is a perspective view of a thin flat plate base material. 1... Corrugated plate base material, 2... Flat plate base material, 3 ₁ ... Wire mesh corrugated plate base material, 3 ₂ ... Wire mesh flat plate base material, 4 ₁ ...
Thin corrugated plate base material, 4 ₂ ... Thin plate flat plate base material, A...
…cell.

Claims (1)

[Scope of Claims] 1. A honeycomb structure formed by alternately joining a corrugated plate base material in which corrugated irregularities are continuously bent and a flat plate base material, the corrugated plate base material A honeycomb structure characterized in that at least one of the material and the flat base material is made of metal wire mesh. 2. The honeycomb structure according to claim 1, wherein the other of the corrugated plate base material and the flat plate base material is made of a thin plate instead of the wire mesh, and a large number of pores are bored therein.