Honeycomb structure

Abstract

We provide a large honeycomb structure using a material with low heat capacity. [Solution] The honeycomb combination 103 is formed by combining multiple honeycomb polygonal prisms 101, which are formed in a polygonal prism shape by laminating a material in which a corrugated metal foil material is layered on top of a flat metal foil material.

Description

Technical Field

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[0006]

[0001] This invention relates to a honeycomb structure suitable for a rotary concentrator that removes harmful components from air containing harmful components such as carbon dioxide and organic solvent components.

Background Art

[0002] A rotary concentrator that removes harmful components from air containing harmful components such as carbon dioxide and organic solvent components is disclosed in Patent Document 1. In a rotary concentrator, a honeycomb structure called a large rotor with a diameter exceeding 1 meter is rotationally driven. The honeycomb structure carries an adsorbent that adsorbs harmful components at room temperature and releases the adsorbed harmful components at high temperature, and a catalyst that purifies harmful components.

[0003] A zone partitioning member is fixedly installed in front of the honeycomb structure. The honeycomb structure is partitioned into an adsorption zone, a regeneration zone, and a cooling zone by this zone partitioning member. As the honeycomb structure rotates, a certain part moves as adsorption zone → regeneration zone → cooling zone → adsorption zone → ···.

[0004] In the adsorption zone of the honeycomb structure, the adsorbent adsorbs harmful components in the air. Then, in the regeneration zone, by being heated, the adsorbent releases the harmful components it has adsorbed. And in the cooling zone, by being cooled, the adsorbent can adsorb harmful components again.

Prior Art Documents

Patent Documents

[0005] [[ID=一次]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Traditionally, honeycomb structures have been made from nonwoven fabrics based on inorganic fibers or ceramics. The adsorbent material supported on the honeycomb structure adsorbs harmful components at room temperature and releases the adsorbed harmful components at high temperatures. Therefore, it is preferable to construct the honeycomb structure using a material with low heat capacity, as this allows the temperature of the honeycomb structure to be raised with less energy and reduces the amount of energy wasted. However, materials with low heat capacity are weak, making it difficult to manufacture large items from them.

[0007] This invention was made in view of these conventional problems. The object of this invention is to provide a large honeycomb structure that uses a material with low heat capacity. [Means for solving the problem]

[0008] The present invention solves the above-mentioned problems by the following means. For ease of understanding, reference numerals corresponding to embodiments of the present invention are enclosed in parentheses, but the invention is not limited thereto. Furthermore, the configurations described with reference numerals may be replaced or improved as appropriate.

[0009] The first aspect is, The honeycomb structure (10) has a honeycomb combination (103) which is formed by combining multiple honeycomb polygonal prisms (101) that are formed in a polygonal prism shape by laminating a material in which a corrugated metal foil material is layered on top of a flat metal foil material.

[0010] The second aspect is the honeycomb structure (10) of the first aspect, The aforementioned honeycomb polygonal prism (101) is in the shape of a regular hexagonal prism, The honeycomb structure (10) has a plurality of honeycomb shaped bodies (102) arranged around the honeycomb combination (103) so that the honeycomb structure (10) is polygonal prism-shaped, This is a honeycomb structure (10).

[0011] The third aspect is the honeycomb structure (10) of the second aspect, The honeycomb shaped body (102) is hexagonal or heptagonal, and is arranged around the honeycomb combination body (103) such that the honeycomb structure (10) is a regular 24-sided prism. This is a honeycomb structure (10).

[0012] The fourth aspect is the honeycomb structure (10) of the first aspect, The aforementioned honeycomb polygonal prism (101) is in the shape of a regular hexagonal prism, The honeycomb structure (10) has a plurality of honeycomb shaped bodies (102) arranged around the honeycomb combination (103) so that the honeycomb structure (10) becomes cylindrical. This is a honeycomb structure (10).

[0013] The fifth aspect is the honeycomb structure (10) of the first aspect, The aforementioned honeycomb polygonal prism (101) is in the shape of a regular square prism, The honeycomb structure (10) has a plurality of honeycomb shaped bodies (102) arranged around the honeycomb combination (103) so that the honeycomb structure (10) is polygonal prism-shaped, This is a honeycomb structure (10).

[0014] The sixth aspect is the honeycomb structure (10) of the fifth aspect, The honeycomb shaped body (102) is hexagonal or heptagonal, and is arranged around the honeycomb combination body (103) such that the honeycomb structure (10) is a regular 24-sided prism. This is a honeycomb structure (10).

[0015] The seventh aspect is the honeycomb structure (10) of the first aspect, The aforementioned honeycomb polygonal prism (101) is in the shape of a regular square prism, The honeycomb structure (10) has a plurality of honeycomb shaped bodies (102) arranged around the honeycomb combination (103) so that the honeycomb structure (10) becomes cylindrical. This is a honeycomb structure (10).

[0016] The eighth aspect is the honeycomb structure (10) according to any one of the first to seventh aspects, having a plurality of the honeycomb combinations (103), and the plurality of honeycomb combinations (103) are arranged in the axial direction, is a honeycomb structure (10).

[0017] The ninth aspect is the honeycomb structure (10) according to any one of the first to seventh aspects, wherein a metal foil material is provided around the honeycomb prism (101), is a honeycomb structure (10).

[0018] The tenth aspect is the honeycomb structure (10) according to any one of the first to seventh aspects, wherein a metal foil material is provided around the honeycomb structure (10), is a honeycomb structure (10).

[0019] The eleventh aspect is the honeycomb structure (10) according to any one of the first to seventh aspects, wherein the honeycomb prism (101) and the honeycomb shaped body (102) constituting the honeycomb structure (10) are bonded to each other with an adhesive or a filler, is a honeycomb structure (10).

[0020] The twelfth aspect is the honeycomb structure (10) according to any one of the first to seventh aspects, wherein a catalyst or a gas adsorbent is supported on the honeycomb prism (101) and the honeycomb shaped body (102) constituting the honeycomb structure (10), is a honeycomb structure (10).

Advantages of the Invention

[0021] According to this aspect, it is possible to provide a large honeycomb structure using a material having a smaller heat capacity than those generally used conventionally. [Brief explanation of the drawing]

[0022] [Figure 1] Figure 1 is a model diagram of a rotary concentration apparatus. [Figure 2] Figure 2 shows the honeycomb polygonal prism formation process #101. [Figure 3] Figure 3 is a plan view of the honeycomb cylindrical body formed in honeycomb polygonal prism formation process #101. [Figure 4] Figure 4 is a perspective view of a honeycomb polygonal prism. [Figure 5] Figure 5 is a plan view of the first honeycomb structure formed in honeycomb structure formation process #102. [Figure 6] Figure 6 is a plan view of the second honeycomb structure formed in honeycomb structure formation process #102. [Figure 7] Figure 7 is a plan view of the honeycomb assembly formed in honeycomb polygonal prism assembly process #103. [Figure 8] Figure 8 is a plan view of the honeycomb assembly formed in honeycomb polygonal prism assembly process #103, combined with the first honeycomb molded body. [Figure 9] Figure 9 is a plan view of a structure in which a second honeycomb structure is added to a honeycomb assembly that has been combined with a first honeycomb structure. [Figure 10] Figure 10 shows the honeycomb polygonal prism formation process #101 of the second embodiment. [Figure 11] Figure 11 is a plan view of the honeycomb cylindrical body formed in honeycomb polygonal prism formation step #101 of the second embodiment. [Modes for carrying out the invention]

[0023] Embodiments of the present invention will be described below with reference to the attached drawings.

[0024] (First Embodiment) Figure 1 is a model diagram of a rotary concentration apparatus. First, to facilitate understanding of the invention, a rotary concentration apparatus using a honeycomb structure will be described with reference to Figure 1.

[0025] The rotary concentration device 1 includes a honeycomb structure 10, a zone partitioning member 20, a main flow path 31, an air flow path 32, a first fan 41, a second fan 42, and a heater 50.

[0026] The honeycomb structure 10 is a rotor that is driven to rotate and has countless micropores. The honeycomb structure 10 has a diameter of, for example, more than 1 meter. The honeycomb structure 10 is supported with an adsorbent that adsorbs harmful components at room temperature and releases the adsorbed harmful components at high temperatures, for example, around 200°C, as well as a catalyst that purifies the harmful components. Examples of such adsorbents include amine-based absorbents and hydrophobic zeolites.

[0027] The zone partitioning member 20 is provided on the front portion of the honeycomb structure 10. The zone partitioning member 20 has a shape such as two V-shapes placed side by side, and divides the honeycomb structure 10 into three zones.

[0028] The first zone partitioned by the zone partitioning member 20 is the adsorption zone 201. In this adsorption zone 201, the adsorbent supported on the honeycomb structure adsorbs harmful components from the air.

[0029] The second zone is the regeneration zone 202. In this regeneration zone 202, the honeycomb structure is heated, causing the adsorbent to release the harmful components it adsorbed in the adsorption zone 201. This regenerates the adsorption performance of the adsorbent.

[0030] The third zone is the cooling zone 203. In this cooling zone 203, the honeycomb structure is cooled, allowing the adsorbent to adsorb harmful components again.

[0031] The main flow path 31 is a conduit through which air flows and includes a main upper flow path 311 on the front side of the honeycomb structure 10 and a main lower flow path 312 on the back side of the honeycomb structure 10. The tip of the main upper flow path 311 opens toward the adsorption zone 201 of the honeycomb structure 10. The base end of the main lower flow path 312 also opens toward the adsorption zone 201 of the honeycomb structure 10.

[0032] The air passage 32 is a conduit through which air flows and includes an upper air passage 321 on the front side of the honeycomb structure 10, a middle air passage 322 on the back side of the honeycomb structure 10, and a lower air passage 323 on the front side of the honeycomb structure 10. The base end of the upper air passage 321 is open and takes in air. The tip of the upper air passage 321 opens toward the cooling zone 203 of the honeycomb structure 10. The base end of the middle air passage 322 also opens toward the cooling zone 203 of the honeycomb structure 10. The tip of the middle air passage 322 opens toward the regeneration zone 202 of the honeycomb structure 10. The base end of the lower air passage 323 also opens toward the regeneration zone 202 of the honeycomb structure 10.

[0033] The first fan 41 is positioned in the main lower passage 312, and is configured to allow air to flow through the main passage 31 (main upper passage 311 and main lower passage 312).

[0034] The second fan 42 is positioned in the lower air passage 323, and is configured to allow air to flow through the air passage 32 (upper air passage 321, middle air passage 322, and lower air passage 323).

[0035] The heater 50 is positioned in the air passage 322 and heats the air flowing through the air passage 322.

[0036] With the structure described above, when the first fan 41, the second fan 42, and the heater 50 are activated, the air drawn in from the main upper flow path 311 passes through the adsorption zone 201 of the honeycomb structure 10. At this time, harmful components contained in the air are adsorbed by the adsorbent material of the honeycomb structure. Then, the air from which the harmful components have been removed flows through the main lower flow path 312 and is discharged.

[0037] Furthermore, the air flowing through the upper air channel 321 passes through the cooling zone 203 of the honeycomb structure 10. At this time, the air cools the honeycomb structure 10, that is, it exchanges heat with the honeycomb structure 10. The air, heated by the heat exchange, flows through the air channel 322, is further heated by the heater 50 to a high temperature, and passes through the regeneration zone 202 of the honeycomb structure 10, where the high-temperature air heats the honeycomb structure 10 (the adsorbent material of the honeycomb structure). The adsorbent material of the honeycomb structure has the characteristic of releasing the harmful components it has adsorbed at high temperatures. Therefore, air containing harmful components is released from the adsorbent material of the honeycomb structure. This released air flows through the lower air channel 323 and is discharged.

[0038] The honeycomb structure 10 is driven to rotate, so a certain part moves from the adsorption zone → regeneration zone → cooling zone → adsorption zone → ... In the adsorption zone 201, the adsorbent material adsorbs harmful components from the air. In the subsequent regeneration zone 202, heating causes the adsorbent material to release the harmful components adsorbed in the adsorption zone 201. Next, in the cooling zone 203, cooling restores the harmful component adsorption performance of the adsorbent material.

[0039] As described above, the rotary concentration device 1 operates. The adsorbent supported on the honeycomb structure 10 has the characteristic of adsorbing harmful components at room temperature and releasing the adsorbed harmful components at high temperatures, so it is preferable that the temperature rises and falls rapidly. Conventionally, nonwoven fabrics based on inorganic fibers or ceramics have been used as honeycomb structures.

[0040] In response to this, the inventors conceived of using a metal foil material with a thickness of about 30 microns. This is because such materials have a small heat capacity, allowing their temperature to rise and fall more quickly than conventional products. For example, automotive exhaust gas purification catalysts are manufactured by winding a material in which a corrugated metal foil material is layered on top of a flat metal foil material. However, it was difficult to manufacture large cylindrical honeycomb structures using this manufacturing method. Because the material in which a corrugated metal foil material is layered on top of a flat metal foil material is soft, as the radius increases when the material is wound, the force acting in the tangential direction (tangential force) increases, causing it to tighten as the radius increases. As a result, the corrugated metal foil material becomes easily crushed.

[0041] Therefore, through diligent research, the inventors conceived the idea of ​​forming a polygonal prism-shaped honeycomb structure by laminating a material in which a corrugated metal foil is layered on top of a flat metal foil, and then combining multiple of these honeycomb prisms to form a honeycomb combination, and arranging multiple honeycomb-shaped bodies around it to construct a roughly cylindrical or cylindrical honeycomb structure.

[0042] Specifically, it will be manufactured as follows:

[0043] (Honeycomb polygonal column formation process #101) Figure 2 shows the honeycomb polygonal prism formation process #101. Figure 3 is a plan view of the honeycomb cylinder formed in honeycomb polygonal prism formation process #101. Furthermore, Figure 4 is a perspective view of the honeycomb polygonal prism. A honeycomb polygonal prism is formed by sequentially stacking materials in which corrugated metal foil is layered on top of flat metal foil. As shown in Figure 2, the material in which corrugated metal foil is layered on top of flat metal foil becomes wider towards the top layer. The length (depth) is the same. It is preferable to braze the flat metal foil and the corrugated metal foil by placing multiple rows of linear nickel solder, for example, about 1 mm wide, at predetermined intervals between them.

[0044] After the honeycomb polygonal prism formation process #101 described above, a honeycomb polygonal prism 101 is formed as shown in Figure 3. Figure 4 shows a perspective view of the honeycomb polygonal prism 101.

[0045] (Honeycomb structure formation process #102) Figure 5 is a plan view of the first honeycomb molded body formed in honeycomb molded body formation process #102. Figure 6 is a plan view of the second honeycomb molded body formed in honeycomb molded body formation process #102. In the following drawings, the honeycomb holes will be omitted to avoid complexity.

[0046] Next, similar to the honeycomb polygonal prism 101 formed in honeycomb polygonal prism formation process #101, a honeycomb shaped body is formed by sequentially laminating a material in which a corrugated metal foil is layered on a flat metal foil, or by cutting the honeycomb polygonal prism 101 formed in honeycomb polygonal prism formation process #101 using, for example, a cutting wheel. The shape of the honeycomb shaped body is such that, when placed around the honeycomb combination in the honeycomb structure formation process #103 described later, the honeycomb structure becomes approximately cylindrical or cylindrical.

[0047] In this embodiment, a honeycomb structure with a regular 24-sided prism shape is manufactured as a substantially cylindrical honeycomb structure. Therefore, the honeycomb molded body has a shape such that when placed around the honeycomb assembly, the honeycomb structure becomes a regular 24-sided prism.

[0048] Specifically, the shape of the first honeycomb-shaped body 102-1 is shown in Figure 5. Note that Figure 5 shows six of the first honeycomb-shaped bodies 102-1. In particular, the explanation will refer to the first honeycomb structure 102-1 shown in the lower left. The first honeycomb structure 102-1 is bilaterally symmetrical, with the left side b1 and the right side b2 extending from vertex a. The angle between the left side b1 and the right side b2 is 120 degrees. The lengths of the left side b1 and the right side b2 are the same as the side lengths of the regular hexagonal prism honeycomb polygonal prism 101. Vertex a lies on the perpendicular bisector of the base c. The left side d1, which is continuous with the base c, has an angle of 165 degrees with the base c. Similarly, the right side d2, which is continuous with the base c, also has an angle of 165 degrees with the base c. The side e1, which is continuous with side d1, is parallel to the perpendicular bisector of the base c. The angle between side e1 and side d1 is 105 degrees. Side e1 is continuous with side b1, and the angle between them is 120 degrees. Side e2, which is continuous with side d2, is also parallel to the perpendicular bisector of base c. Side e2 has an angle of 105 degrees with side d2. Side e2 is continuous with side b2, and the angle between them is 120 degrees. The shape of the first honeycomb structure 102-1 is as described above.

[0049] The shape of the second honeycomb structure 102-2 is shown in Figure 6. Figure 6 shows six of the second honeycomb structures 102-2. In particular, the explanation will refer to the second honeycomb structure 102-2 shown at the very bottom. The second honeycomb structure 102-2 is bilaterally symmetrical. The upper side a has the same length as the side length of the regular hexagonal prism honeycomb polygonal prism 101. The left side b1, which is continuous with the upper side a, has an angle of 120 degrees with the upper side a. Similarly, the right side b2, which is continuous with the upper side a, also has an angle of 120 degrees with the upper side a. The lower side c is parallel to the upper side a. The side d1, which is continuous with the lower side c, has an angle of 165 degrees with the lower side c. Side d1 is continuous with the left side b1, and the angle is 75 degrees. Similarly, side d2, which is continuous with the lower side c, also has an angle of 165 degrees with the lower side c. Side d2 is continuous with the right side b2, and the angle is 75 degrees. The shape of the second honeycomb-shaped body 102-2 is as described above.

[0050] (Honeycomb polygonal prism assembly process #103) Figure 7 is a plan view of the honeycomb assembly formed in honeycomb polygonal prism assembly process #103. The honeycomb polygonal prisms 101 formed in honeycomb polygonal prism formation step #101 are combined to form a honeycomb combination 103. Specifically, six hexagonal prism-shaped honeycomb polygonal prisms 101 are arranged so as to touch each side of the central hexagonal prism-shaped honeycomb polygonal prism 101. At this time, it is preferable to bond the honeycomb polygonal prisms together with adhesive. In this way, the honeycomb combination 103 shown in Figure 7 is formed.

[0051] (First honeycomb molded assembly process #104) Figure 8 is a plan view of the honeycomb assembly formed in honeycomb polygonal prism assembly process #103, combined with the first honeycomb molded body. Next, the first honeycomb molded body 102-1 is assembled so that it touches both adjacent honeycomb polygonal prisms 101 included in the honeycomb assembly 103. At this time, it is preferable to bond the honeycomb polygonal prisms 101 and the first honeycomb molded body 102-1 with adhesive. This state is shown in Figure 8.

[0052] (Second honeycomb molded assembly process #105) Figure 9 is a plan view of a structure in which a second honeycomb structure is added to a honeycomb assembly that has been combined with a first honeycomb structure. Next, the second honeycomb structure 102-2 is combined between the adjacent first honeycomb structures 102-1 so as to be in contact with the honeycomb polygonal prism 101 and the first honeycomb structure 102-1. At this time, it is advisable to bond the honeycomb polygonal prism 101, the first honeycomb structure 102-1, and the second honeycomb structure 102-2 with adhesive. This state is shown in Figure 9. This is the honeycomb structure 10, which is a regular 24-sided prism (approximately cylindrical).

[0053] To manufacture a long honeycomb structure, the honeycomb structures 10 manufactured as described above can be arranged and connected in the axial direction.

[0054] Furthermore, although the honeycomb polygonal prism 101 described above has edges on its sides, it may also be wrapped in metal foil. This would increase safety when transporting the honeycomb polygonal prism 101.

[0055] Furthermore, although the honeycomb structure 10 described above has sharp edges on its periphery, its periphery may also be wrapped in metal foil. This would increase safety when transporting the honeycomb structure 10.

[0056] Furthermore, although the honeycomb structure 10 described above was a regular 24-sided prism, it may also be cylindrical. In this case, the outer surfaces of the first honeycomb structure 102-1 and the second honeycomb structure 102-2 should be made into arc shapes.

[0057] Furthermore, the honeycomb structure 10 may be in the shape of a regular dodecagonal prism or a regular 36-sided prism. In this case, the outer surfaces of the first honeycomb molded body 102-1 and the second honeycomb molded body 102-2 should be shaped to suit the configuration.

[0058] According to this embodiment, since a honeycomb structure is constructed using metal foil material, when used in a rotary concentrator, the temperature can be raised and lowered rapidly, and energy efficiency is improved, such as by reducing the heater output compared to conventional methods.

[0059] Furthermore, by combining multiple polygonal prism-shaped honeycomb polygonal prisms to form a honeycomb combination and arranging multiple honeycomb-shaped bodies around it, a roughly cylindrical or cylindrical honeycomb structure is constructed, making it possible to manufacture large honeycomb structures even when using soft materials.

[0060] (Second Embodiment) (Honeycomb polygonal column formation process #101) Figure 10 shows the honeycomb polygonal prism formation process #101 of the second embodiment. Figure 11 is a plan view of the honeycomb cylinder formed in the honeycomb polygonal prism formation process #101 of the second embodiment. A honeycomb polygonal prism is formed by sequentially stacking materials in which a corrugated metal foil is layered on top of a flat metal foil. As shown in Figure 10, all materials in which a corrugated metal foil is layered on top of a flat metal foil are of the same size. The flat metal foil and the corrugated metal foil can be brazed together by placing multiple rows of linear nickel solder, for example, about 1 mm wide, at predetermined intervals between them.

[0061] After the honeycomb polygonal prism formation process #101 described above, a honeycomb polygonal prism 101 as shown in Figure 11 is formed.

[0062] In this way, a honeycomb polygonal prism 101 of a regular square prism can be formed.

[0063] Although embodiments of the present invention have been described above, these embodiments only represent a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0064] For example, the honeycomb combination was constructed by arranging six hexagonal prism-shaped honeycomb polygonal prisms 101 so as to be in contact with each side of a central hexagonal prism-shaped honeycomb polygonal prism 101, but it is not limited to this. The honeycomb combination may also be constructed by arranging more hexagonal prism-shaped honeycomb polygonal prisms 101 around the six hexagonal prism-shaped honeycomb polygonal prisms 101.

[0065] Furthermore, honeycomb polygonal prisms are not limited to regular hexagonal or square prisms. For example, they may also be regular triangular prisms. In such cases, a honeycomb polygonal prism of regular triangular prisms can be formed by sequentially laminating materials in which corrugated metal foil is layered on top of flat metal foil.

[0066] Furthermore, in the above embodiment, the honeycomb structure 10 was constructed in the following order: first, honeycomb polygonal prisms 101 were combined to form a honeycomb combination 103; then, the first honeycomb molded body 102-1 was combined; and subsequently, the second honeycomb molded body 102-2 was combined. However, this order is merely one example. The first honeycomb molded body 102-1 and the second honeycomb molded body 102-2 may be assembled alternately, or several honeycomb polygonal prisms 101 may be combined before assembling the first honeycomb molded body 102-1 and the second honeycomb molded body 102-2.

[0067] Furthermore, the first honeycomb molded body 102-1 and the second honeycomb molded body 102-2 may be formed into a desired shape using, for example, resin.

[0068] Furthermore, although the above embodiment described an example in which each honeycomb polygonal prism and each honeycomb molded body are bonded together with an adhesive, this is merely one example. For example, gaps may be prevented by bonding them together with a filler such as putty. As for the putty, a heat-resistant material is preferable, and for example, a silicone-based putty may be used.

[0069] The above embodiments can be combined as appropriate. [Explanation of Symbols]

[0070] 1. Rotary Concentrator 10 Honeycomb structure 101 Honeycomb Polygonal Prism 102 Honeycomb Plastic Body 103 Honeycomb Combination

Claims

1. A honeycomb structure having a honeycomb combination body formed by combining multiple honeycomb polygonal prisms, which are created by laminating a material in which a corrugated metal foil is layered on top of a flat metal foil material, to form a polygonal prism shape.

2. In the honeycomb structure described in claim 1, The aforementioned honeycomb polygonal prism is in the shape of a regular hexagonal prism, The honeycomb structure has a plurality of honeycomb-shaped bodies arranged around the honeycomb combination so that the honeycomb structure is polygonal prism-shaped. Honeycomb structure.

3. In the honeycomb structure described in claim 2, The honeycomb structure is hexagonal or heptagonal, and is arranged around the honeycomb assembly such that the honeycomb structure forms a regular 24-sided prism. Honeycomb structure.

4. In the honeycomb structure described in claim 1, The aforementioned honeycomb polygonal prism is in the shape of a regular hexagonal prism, The honeycomb structure has a plurality of honeycomb-shaped bodies arranged around the honeycomb combination so that the honeycomb structure is cylindrical. Honeycomb structure.

5. In the honeycomb structure described in claim 1, The aforementioned honeycomb polygonal prism is in the shape of a regular square prism, The honeycomb structure has a plurality of honeycomb-shaped bodies arranged around the honeycomb combination so that the honeycomb structure is polygonal prism-shaped. Honeycomb structure.

6. In the honeycomb structure described in claim 5, The honeycomb structure is hexagonal or heptagonal, and is arranged around the honeycomb assembly such that the honeycomb structure forms a regular 24-sided prism. Honeycomb structure.

7. In the honeycomb structure described in claim 1, The aforementioned honeycomb polygonal prism is in the shape of a regular square prism, The honeycomb structure has a plurality of honeycomb-shaped bodies arranged around the honeycomb combination so that the honeycomb structure is cylindrical. Honeycomb structure.

8. In the honeycomb structure according to any one of claims 1 to 7, The present invention has multiple honeycomb combinations, and these multiple honeycomb combinations are arranged in the axial direction. Honeycomb structure.

9. In the honeycomb structure according to any one of claims 1 to 7, The aforementioned honeycomb polygonal prism is surrounded by a metal foil material. Honeycomb structure.

10. In the honeycomb structure according to any one of claims 1 to 7, The aforementioned honeycomb structure is provided with a metal foil material around it. Honeycomb structure.

11. In the honeycomb structure according to any one of claims 1 to 7, The honeycomb polygonal prisms and honeycomb molded bodies constituting the aforementioned honeycomb structure are joined to each other with adhesive or filler. Honeycomb structure.

12. In the honeycomb structure according to any one of claims 1 to 7, A catalyst or gas adsorbent is supported on the honeycomb polygonal prisms and honeycomb molded bodies that constitute the aforementioned honeycomb structure. Honeycomb structure.

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