JP2022077699A - Heat insulation body and manufacturing method of heat insulation body - Google Patents

Heat insulation body and manufacturing method of heat insulation body Download PDF

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JP2022077699A
JP2022077699A JP2020188652A JP2020188652A JP2022077699A JP 2022077699 A JP2022077699 A JP 2022077699A JP 2020188652 A JP2020188652 A JP 2020188652A JP 2020188652 A JP2020188652 A JP 2020188652A JP 2022077699 A JP2022077699 A JP 2022077699A
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heat insulating
main surface
heat
surface portion
core material
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雅則 西本
Masanori Nishimoto
直人 森田
Naoto Morita
幸雄 北川
Yukio Kitagawa
聖皓 薮内
Masaaki Yabuuchi
光司 備後
Koji Bingo
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JTEKT Thermo Systems Corp
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Koyo Thermo Systems Co Ltd
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Priority to JP2020188652A priority Critical patent/JP2022077699A/en
Priority to KR1020210046660A priority patent/KR102444572B1/en
Priority to CN202110423216.9A priority patent/CN114485181A/en
Publication of JP2022077699A publication Critical patent/JP2022077699A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0033—Linings or walls comprising heat shields, e.g. heat shieldsd
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Thermal Insulation (AREA)
  • Insulators (AREA)
  • Inorganic Insulating Materials (AREA)
  • Insulating Bodies (AREA)

Abstract

To further effectively suppress the damage of a heat insulation body.SOLUTION: A heat insulation body comprises: a heat resistance heat insulation skin material having a first main face part including a first main face being a part of an outer face of a furnace, a second main face part including a second main face being a part of an inner face of the furnace, and a bridge part for connecting the first main face part and the second main face part; and a first high-heat insulation core material arranged between the first main face part and the second main face part, and composed of a material having heat insulation performance which is higher than that of the heat resistance heat insulation skin material. A direction progressing toward the first main face from the second main face is defined as an inside/outside direction. A direction orthogonal to the inside/outside direction is defined as a first orthogonal direction. The first main face part, the second main face part and the bridge part form one member. The bridge part is overlapped on at least a part of a center line which is obtained by connecting centers of the heat resistance heat insulation skin material in the first orthogonal direction when viewed in the inside/outside direction.SELECTED DRAWING: Figure 3

Description

本発明は、炉に用いられる断熱体及び断熱体の製造方法に関する。 The present invention relates to a heat insulating body used in a furnace and a method for manufacturing the heat insulating body.

従来の断熱体に関連する発明としては、例えば、特許文献１に記載の炉壁構成材が知られている。この炉壁構成材は、２つの外側ブロック、内側ブロック及び高断熱性芯材を備えている。内側ブロック及び高断熱性芯材は、上下方向に見て、左右方向に延びる長辺を有する長方形状を有する板である。高断熱性芯材は、内側ブロックの上主面の上に配置されている。２つの外側ブロックは、上下方向に見て、長方形状を有している。２つの外側ブロックは、高断熱性芯材の上に配置されている。２つの外側ブロックは、左右方向に並んでいる。２つの外側ブロックの間には隙間が設けられている。これにより、２つの外側ブロックの間にスリットが形成されている。 As an invention related to a conventional heat insulating body, for example, the furnace wall constituent material described in Patent Document 1 is known. This furnace wall component comprises two outer blocks, an inner block and a highly insulating glulam. The inner block and the highly heat-insulating core material are plates having a rectangular shape having long sides extending in the horizontal direction when viewed in the vertical direction. The highly insulating core material is placed on the upper main surface of the inner block. The two outer blocks have a rectangular shape when viewed in the vertical direction. The two outer blocks are placed on top of a highly insulating core. The two outer blocks are lined up in the left-right direction. There is a gap between the two outer blocks. As a result, a slit is formed between the two outer blocks.

この炉壁構成材によれば、以下に説明するように、熱変形による炉壁構成材の破損を防止することができる。より詳細には、この炉壁構成材では、炉の使用時に、内側ブロックが相対的に高温となり、外側ブロックが相対的に低温となる。そのため、内側ブロックが相対的に大きく収縮し、外側ブロックが相対的に小さく収縮する。すなわち、内側ブロックの収縮量と外側ブロックの収縮量とに差が生じる。このような収縮量の差は、炉壁構成材に変形を生じさせるので、炉壁構成材の破損の原因となる。 According to this furnace wall constituent material, as described below, it is possible to prevent the furnace wall constituent material from being damaged due to thermal deformation. More specifically, in this furnace wall constituent material, the inner block becomes relatively hot and the outer block becomes relatively cold when the furnace is used. Therefore, the inner block contracts relatively large, and the outer block contracts relatively small. That is, there is a difference between the amount of shrinkage of the inner block and the amount of shrinkage of the outer block. Such a difference in the amount of shrinkage causes deformation of the furnace wall constituent material, which causes damage to the furnace wall constituent material.

そこで、この炉壁構成材では、２つの外側ブロックの間にスリットが形成されている。これにより、炉壁構成材の変形が抑制され、炉壁構成材の破損が抑制される。 Therefore, in this furnace wall constituent material, a slit is formed between the two outer blocks. As a result, deformation of the furnace wall constituent material is suppressed, and damage to the furnace wall constituent material is suppressed.

特許第５１５０２６０号Patent No. 5150260

ところで、特許文献１に記載の炉壁構成材では、内側ブロックが相対的に高温となるので、内側ブロックが左右方向に大きく収縮する。そのため、内側ブロックの左右方向の中心近傍において大きな圧縮応力が発生する。このような大きな圧縮応力は、内側ブロックの破損の原因となる場合がある。 By the way, in the furnace wall constituent material described in Patent Document 1, since the inner block has a relatively high temperature, the inner block contracts significantly in the left-right direction. Therefore, a large compressive stress is generated near the center of the inner block in the left-right direction. Such a large compressive stress may cause breakage of the inner block.

そこで、本発明の目的は、断熱体の破損をより効果的に抑制できる断熱体及び断熱体の製造方法を提供することである。 Therefore, an object of the present invention is to provide a heat insulating body and a method for manufacturing the heat insulating body, which can more effectively suppress damage to the heat insulating body.

本発明の一形態に係る断熱体は、
炉に用いられる断熱体であって、
前記炉の外面の一部となる第１主面を含んでいる第１主面部、前記炉の内面の一部となる第２主面を含んでいる第２主面部、及び、前記第１主面部と前記第２主面部とを接続しているブリッジ部とを有している耐熱性断熱皮材と、
前記第１主面部と前記第２主面部との間に設けられおり、かつ、前記耐熱性断熱皮材の材料より高い断熱性能を有する材料により作製されている第１高断熱性芯材と、
を備えており、
前記第２主面から前記第１主面に向かう方向を内外方向と定義し、
前記内外方向に直交する方向を第１直交方向と定義し、
前記第１主面部、前記第２主面部及び前記ブリッジ部は、一つの部材を形成しており、
前記ブリッジ部は、前記内外方向に見て、前記耐熱性断熱皮材の前記第１直交方向における中心を繋いで得られる中心線の少なくとも一部と重なっている。 The heat insulating body according to one embodiment of the present invention is
It is a heat insulating material used in a furnace.
A first main surface portion including a first main surface that becomes a part of the outer surface of the furnace, a second main surface portion including a second main surface that becomes a part of the inner surface of the furnace, and the first main surface portion. A heat-resistant heat insulating skin material having a surface portion and a bridge portion connecting the second main surface portion, and
A first highly heat-insulating core material provided between the first main surface portion and the second main surface portion and made of a material having higher heat insulating performance than the material of the heat-resistant heat insulating skin material.
Equipped with
The direction from the second main surface to the first main surface is defined as an inward / outward direction.
The direction orthogonal to the inside and outside directions is defined as the first orthogonal direction, and is defined as the first orthogonal direction.
The first main surface portion, the second main surface portion, and the bridge portion form one member.
The bridge portion overlaps with at least a part of the center line obtained by connecting the centers of the heat-resistant heat insulating skin material in the first orthogonal direction when viewed in the inward and outward directions.

本発明の一形態に係る断熱体の製造方法は、
前記耐熱性断熱皮材の前記第１主面と前記第２主面との間にスリットを形成するスリット形成工程と、
前記スリットに前記第１高断熱性芯材を挿入する挿入工程と、
前記スリットを塞ぐ封止工程と、
を備える。 The method for manufacturing a heat insulating body according to one embodiment of the present invention is as follows.
A slit forming step of forming a slit between the first main surface and the second main surface of the heat-resistant heat insulating skin material, and
An insertion step of inserting the first highly heat-insulating core material into the slit, and
The sealing process that closes the slit and
To prepare for.

本発明によれば、断熱体の破損をより効果的に抑制できる。 According to the present invention, damage to the heat insulating body can be suppressed more effectively.

図１は、断熱体１０の外観斜視図である。FIG. 1 is an external perspective view of the heat insulating body 10. 図２は、断熱体１０の分解斜視図である。FIG. 2 is an exploded perspective view of the heat insulating body 10. 図３は、図１のＡ－Ａにおける断熱体１０の断面図である。FIG. 3 is a cross-sectional view of the heat insulating body 10 in AA of FIG. 図４は、断熱体１０の上面図である。FIG. 4 is a top view of the heat insulating body 10. 図５は、断熱体１０の製造方法を示したフローチャートである。FIG. 5 is a flowchart showing a method of manufacturing the heat insulating body 10. 図６は、断熱体１０ａの分解斜視図である。FIG. 6 is an exploded perspective view of the heat insulating body 10a. 図７は、断熱体１０ｂの分解斜視図である。FIG. 7 is an exploded perspective view of the heat insulating body 10b. 図８は、断熱体１０ｂの上面図である。FIG. 8 is a top view of the heat insulating body 10b.

（実施形態）
［断熱体１０の構造］
以下に、本発明の一実施形態に係る断熱体１０の構造について図面を参照しながら説明する。図１は、断熱体１０の外観斜視図である。図２は、断熱体１０の分解斜視図である。図３は、図１のＡ－Ａにおける断熱体１０の断面図である。図４は、断熱体１０の上面図である。 (Embodiment)
[Structure of heat insulating body 10]
Hereinafter, the structure of the heat insulating body 10 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the heat insulating body 10. FIG. 2 is an exploded perspective view of the heat insulating body 10. FIG. 3 is a cross-sectional view of the heat insulating body 10 in AA of FIG. FIG. 4 is a top view of the heat insulating body 10.

断熱体１０は、図１に示すように、半円筒形状を有している。より詳細には、断熱体１０は、円筒の中心軸Ａｘを含む平面により円筒を半分に分割して得られる形状を有している。以下では、円筒の中心軸Ａｘが延びる方向を前後方向と定義する。また、左右方向は、前後方向に直交し、かつ、円筒を半分に分割する平面と平行である。上下方向は、前後方向及び左右方向に直交する。なお、本明細書における方向の定義は、一例である。従って、断熱体１０の実使用時における方向と本明細書における方向とが一致している必要はない。また、各図面において上下方向が反転してもよい。同様に、各図面において左右方向が反転してもよい。各図面において前後方向が反転してもよい。 As shown in FIG. 1, the heat insulating body 10 has a semi-cylindrical shape. More specifically, the heat insulating body 10 has a shape obtained by dividing the cylinder in half by a plane including the central axis Ax of the cylinder. In the following, the direction in which the central axis Ax of the cylinder extends is defined as the front-back direction. Further, the left-right direction is orthogonal to the front-back direction and is parallel to the plane that divides the cylinder in half. The vertical direction is orthogonal to the front-back direction and the left-right direction. The definition of direction in this specification is an example. Therefore, it is not necessary that the direction of the heat insulating body 10 in actual use and the direction in the present specification coincide with each other. Further, the vertical direction may be reversed in each drawing. Similarly, the left-right direction may be reversed in each drawing. The front-back direction may be reversed in each drawing.

以下に、本明細書における用語の定義について説明する。まず、本明細書における部材の位置関係について定義する。ＸないしＺは、断熱体１０を構成する部材又は部品である。本明細書において、ＸがＹの前に配置されるとは、以下の状態を指す。Ｘの少なくとも一部は、Ｙが前方向に平行移動するときに通過する領域内に配置されている。よって、Ｘは、Ｙが前方向に平行移動するときに通過する領域内に収まっていてもよいし、Ｙが前方向に平行移動するときに通過する領域から突出していてもよい。この場合、Ｘ及びＹは、前後方向に並んでいる。この定義は、前後方向以外の方向にも適用される。 The definitions of terms in the present specification will be described below. First, the positional relationship of the members in the present specification is defined. Reference numerals X to Z are members or parts constituting the heat insulating body 10. In the present specification, the fact that X is placed before Y means the following states. At least a portion of X is located within the region through which Y translates forward. Therefore, X may be contained in the region through which Y is translated in the forward direction, or may protrude from the region through which Y is translated in the forward direction. In this case, X and Y are arranged in the front-rear direction. This definition applies to directions other than the front-back direction.

本明細書において、ＸがＹより前に配置されるとは、以下の状態を指す。Ｘは、Ｙの前端を通り前後方向に直交する平面の前に配置される。この場合、Ｘ及びＹは、前後方向に並んでいてもよく、並んでいなくてもよい。この定義は、前後方向以外の方向にも適用される。 In the present specification, the fact that X is arranged before Y means the following states. X is placed in front of a plane that passes through the front end of Y and is orthogonal to the front-back direction. In this case, X and Y may or may not be aligned in the front-rear direction. This definition applies to directions other than the front-back direction.

本明細書において、特に断りのない場合には、Ｘの各部について以下のように定義する。Ｘの前部とは、Ｘの前半分を意味する。Ｘの後部とは、Ｘの後半分を意味する。Ｘの左部とは、Ｘの左半分を意味する。Ｘの右部とは、Ｘの右半分を意味する。Ｘの上部とは、Ｘの上半分を意味する。Ｘの下部とは、Ｘの下半分を意味する。Ｘの前端とは、Ｘの前方向の端を意味する。Ｘの後端とは、Ｘの後方向の端を意味する。Ｘの左端とは、Ｘの左方向の端を意味する。Ｘの右端とは、Ｘの右方向の端を意味する。Ｘの上端とは、Ｘの上方向の端を意味する。Ｘの下端とは、Ｘの下方向の端を意味する。Ｘの前端部とは、Ｘの前端及びその近傍を意味する。Ｘの後端部とは、Ｘの後端及びその近傍を意味する。Ｘの左端部とは、Ｘの左端及びその近傍を意味する。Ｘの右端部とは、Ｘの右端及びその近傍を意味する。Ｘの上端部とは、Ｘの上端及びその近傍を意味する。Ｘの下端部とは、Ｘの下端及びその近傍を意味する。 Unless otherwise specified, each part of X is defined as follows in the present specification. The front part of X means the front half of X. The rear part of X means the rear half of X. The left part of X means the left half of X. The right part of X means the right half of X. The upper part of X means the upper half of X. The lower part of X means the lower half of X. The front end of X means the front end of X. The rear end of X means the rear end of X. The left end of X means the left end of X. The right end of X means the right end of X. The upper end of X means the upper end of X. The lower end of X means the lower end of X. The front end portion of X means the front end portion of X and its vicinity. The rear end portion of X means the rear end portion of X and its vicinity. The left end portion of X means the left end portion of X and its vicinity. The right end portion of X means the right end portion of X and its vicinity. The upper end portion of X means the upper end portion of X and its vicinity. The lower end portion of X means the lower end portion of X and its vicinity.

断熱体１０は、炉に用いられる。より詳細には、複数の断熱体１０が組み合わされることにより、炉の壁が形成される。炉は、例えば、加熱炉である。断熱体１０は、図１及び図２に示すように、耐熱性断熱皮材１２、第１蓋１４ａ、第２蓋１４ｂ、第１高断熱性芯材１６ａ、第２高断熱性芯材１６ｂ及び発熱体２０を備えている。 The heat insulating body 10 is used in a furnace. More specifically, the combination of the plurality of heat insulating bodies 10 forms the wall of the furnace. The furnace is, for example, a heating furnace. As shown in FIGS. 1 and 2, the heat insulating body 10 includes a heat-resistant heat-insulating skin material 12, a first lid 14a, a second lid 14b, a first highly heat-insulating core material 16a, a second highly heat-insulating core material 16b, and the like. It includes a heating element 20.

耐熱性断熱皮材１２は、前後方向に延びる中心軸Ａｘを有する半円筒形状を有している。耐熱性断熱皮材１２は、第１主面ＯＳ及び第２主面ＩＳを有している。第１主面ＯＳは、耐熱性断熱皮材１２の外面である。従って、第１主面ＯＳは、前後方向に平行な中心軸Ａｘを有する円筒面の一部である。本実施形態では、第１主面ＯＳは、半円筒面である。第１主面ＯＳは、炉の外面の一部となる。第２主面ＩＳは、耐熱性断熱皮材１２の内面である。従って、第２主面ＩＳは、前後方向に平行な中心軸Ａｘを有する円筒面の一部である。本実施形態では、第２主面ＩＳは、半円筒面である。第２主面ＩＳは、炉の内面の一部となる。 The heat-resistant heat insulating skin material 12 has a semi-cylindrical shape having a central axis Ax extending in the front-rear direction. The heat-resistant heat insulating skin material 12 has a first main surface OS and a second main surface IS. The first main surface OS is the outer surface of the heat-resistant heat insulating skin material 12. Therefore, the first main surface OS is a part of a cylindrical surface having a central axis Ax parallel to the front-rear direction. In this embodiment, the first main surface OS is a semi-cylindrical surface. The first main surface OS becomes a part of the outer surface of the furnace. The second main surface IS is the inner surface of the heat-resistant heat insulating skin material 12. Therefore, the second main surface IS is a part of a cylindrical surface having a central axis Ax parallel to the front-rear direction. In this embodiment, the second main surface IS is a semi-cylindrical surface. The second main surface IS becomes a part of the inner surface of the furnace.

以下では、第２主面ＩＳから第１主面ＯＳに向かう方向を内外方向と定義する。内外方向は、耐熱性断熱皮材１２の径方向である。また、内外方向の反対方向を外内方向と定義する。また、内外方向に直交する方向を第１直交方向と定義する。本実施形態では、第１直交方向は、前後方向と一致する。 In the following, the direction from the second main surface IS to the first main surface OS is defined as the inner / outer direction. The inside / outside direction is the radial direction of the heat-resistant heat insulating skin material 12. In addition, the direction opposite to the inside / outside direction is defined as the outside / inside direction. Further, the direction orthogonal to the inside / outside direction is defined as the first orthogonal direction. In this embodiment, the first orthogonal direction coincides with the front-back direction.

図２に示すように、耐熱性断熱皮材１２の第１主面ＯＳと第２主面ＩＳとの間には、スリットＳＬ１，ＳＬ２が設けられている。スリットＳＬ１は、耐熱性断熱皮材１２の後面から前方向に延びている。従って、スリットＳＬ１は、耐熱性断熱皮材１２の後面において開口している。スリットＳＬ１は、半円筒形状を有している。スリットＳＬ１の前端は、図３及び図４に示すように、耐熱性断熱皮材１２の中心線ＣＬより後に位置している。中心線ＣＬは、図４に示すように、内外方向（上下方向）に見て、耐熱性断熱皮材１２の第１直交方向（前後方向）における中心を繋いで得られる線である。スリットＳＬ２は、耐熱性断熱皮材１２の前面から後方向に延びている。従って、スリットＳＬ２は、耐熱性断熱皮材１２の前面において開口している。スリットＳＬ２は、半円筒形状を有している。スリットＳＬ２の後端は、図３及び図４に示すように、耐熱性断熱皮材１２の中心線ＣＬより前に位置している。 As shown in FIG. 2, slits SL1 and SL2 are provided between the first main surface OS and the second main surface IS of the heat-resistant heat insulating skin material 12. The slit SL1 extends forward from the rear surface of the heat-resistant heat insulating skin material 12. Therefore, the slit SL1 is open on the rear surface of the heat-resistant heat insulating skin material 12. The slit SL1 has a semi-cylindrical shape. As shown in FIGS. 3 and 4, the front end of the slit SL1 is located behind the center line CL of the heat-resistant heat insulating skin material 12. As shown in FIG. 4, the center line CL is a line obtained by connecting the centers of the heat-resistant heat insulating skin material 12 in the first orthogonal direction (front-back direction) when viewed in the inside-out direction (vertical direction). The slit SL2 extends rearward from the front surface of the heat-resistant heat insulating skin material 12. Therefore, the slit SL2 is open on the front surface of the heat-resistant heat insulating skin material 12. The slit SL2 has a semi-cylindrical shape. As shown in FIGS. 3 and 4, the rear end of the slit SL2 is located in front of the center line CL of the heat-resistant heat insulating skin material 12.

耐熱性断熱皮材１２は、図３に示すように、第１主面部１２２、第２主面部１２４及びブリッジ部１２６を含んでいる。第１主面部１２２は、第１主面ＯＳを含んでいる。本実施形態では、第１主面部１２２は、耐熱性断熱皮材１２においてスリットＳＬ１及びスリットＳＬ２より内外方向（外側）に位置する部分である。第２主面部１２４は、第２主面ＩＳを含んでいる。本実施形態では、第２主面部１２４は、耐熱性断熱皮材１２においてスリットＳＬ１及びスリットＳＬ２より外内方向（内側）に位置する部分である。 As shown in FIG. 3, the heat-resistant heat insulating skin material 12 includes a first main surface portion 122, a second main surface portion 124, and a bridge portion 126. The first main surface portion 122 includes the first main surface OS. In the present embodiment, the first main surface portion 122 is a portion of the heat-resistant heat insulating leather material 12 located in the inside / outside direction (outside) from the slit SL1 and the slit SL2. The second main surface portion 124 includes the second main surface IS. In the present embodiment, the second main surface portion 124 is a portion of the heat-resistant heat insulating leather material 12 located in the outer-inward direction (inside) of the slit SL1 and the slit SL2.

ブリッジ部１２６は、図３に示すように、第１主面部１２２と第２主面部１２４とを接続している。ブリッジ部１２６は、内外方向において、第１主面部１２２と第２主面部１２４との間に位置する部分である。また、ブリッジ部１２６は、前後方向において、スリットＳＬ１の前、かつ、スリットＳＬ２の後に位置している。これにより、ブリッジ部１２６は、図４に示すように、内外方向（上下方向）に見て、耐熱性断熱皮材１２の第１直交方向（前後方向）における中心を繋いで得られる中心線ＣＬの全体と重なっている。従って、ブリッジ部１２６は、図４に示すように、上下方向に見て、耐熱性断熱皮材１２の左辺と右辺とを繋ぐように左右方向に延びている。このような第１主面部１２２、第２主面部１２４及びブリッジ部１２６は、一つの部材を形成している。「第１主面部１２２、第２主面部１２４及びブリッジ部１２６は、一つの部材を形成している。」とは、耐熱性断熱皮材１２を破損させることなく、第１主面部１２２、第２主面部１２４及びブリッジ部１２６を分離できないことを意味する。「第１主面部１２２、第２主面部１２４及びブリッジ部１２６は、一つの部材を形成している。」とは、第１主面部１２２、第２主面部１２４及びブリッジ部１２６が同一の材料により作製されていることを意味する。従って、「第１主面部１２２、第２主面部１２４及びブリッジ部１２６は、一つの部材を形成している。」とは、第１主面部１２２、第２主面部１２４及びブリッジ部１２６が一体成型されていることを意味する。従って、「第１主面部１２２、第２主面部１２４及びブリッジ部１２６は、一つの部材を形成している。」とは、第１主面部１２２と第２主面部１２４とブリッジ部１２６とが接着剤により固定されていることを含まない。 As shown in FIG. 3, the bridge portion 126 connects the first main surface portion 122 and the second main surface portion 124. The bridge portion 126 is a portion located between the first main surface portion 122 and the second main surface portion 124 in the inward and outward directions. Further, the bridge portion 126 is located in front of the slit SL1 and after the slit SL2 in the front-rear direction. As a result, as shown in FIG. 4, the bridge portion 126 is obtained by connecting the centers of the heat-resistant heat insulating skin material 12 in the first orthogonal direction (front-back direction) when viewed in the inside-out direction (vertical direction). It overlaps with the whole of. Therefore, as shown in FIG. 4, the bridge portion 126 extends in the left-right direction so as to connect the left side and the right side of the heat-resistant heat insulating skin material 12 when viewed in the vertical direction. Such a first main surface portion 122, a second main surface portion 124, and a bridge portion 126 form one member. "The first main surface portion 122, the second main surface portion 124, and the bridge portion 126 form one member." Means that the first main surface portion 122, the first main surface portion 122, without damaging the heat-resistant heat insulating skin material 12. 2 It means that the main surface portion 124 and the bridge portion 126 cannot be separated. "The first main surface portion 122, the second main surface portion 124, and the bridge portion 126 form one member." Means that the first main surface portion 122, the second main surface portion 124, and the bridge portion 126 are made of the same material. It means that it is made by. Therefore, "the first main surface portion 122, the second main surface portion 124, and the bridge portion 126 form one member" means that the first main surface portion 122, the second main surface portion 124, and the bridge portion 126 are integrated. It means that it is molded. Therefore, "the first main surface portion 122, the second main surface portion 124, and the bridge portion 126 form one member" means that the first main surface portion 122, the second main surface portion 124, and the bridge portion 126 form one member. Does not include being fixed with adhesive.

以上のような耐熱性断熱皮材１２は、耐火性無機繊維を主成分としている。具体的には、耐熱性断熱皮材１２は、セラミックファイバーを真空成型した断熱材である。 The heat-resistant heat insulating leather material 12 as described above contains a fire-resistant inorganic fiber as a main component. Specifically, the heat-resistant heat insulating skin material 12 is a heat insulating material obtained by vacuum forming a ceramic fiber.

第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂは、第１主面部１２２と第２主面部１２４との間に設けられている。より詳細には、第１高断熱性芯材１６ａは、スリットＳＬ１内に設けられている。第２高断熱性芯材１６ｂは、スリットＳＬ２内に設けられている。これにより、第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂは、内外方向（上下方向）に見て、第１直交方向（前後方向）に並んでいる。本実施形態では、第１高断熱性芯材１６ａは、第２高断熱性芯材１６ｂの後に位置している。そして、中心線ＣＬは、図４に示すように、内外方向（上下方向）に見て、第１高断熱性芯材１６ａと第２高断熱性芯材１６ｂとの間に位置している。 The first highly heat-insulating core material 16a and the second highly heat-insulating core material 16b are provided between the first main surface portion 122 and the second main surface portion 124. More specifically, the first highly heat insulating core material 16a is provided in the slit SL1. The second highly heat insulating core material 16b is provided in the slit SL2. As a result, the first highly heat-insulating core material 16a and the second highly heat-insulating core material 16b are arranged in the first orthogonal direction (front-back direction) when viewed in the inside-out direction (vertical direction). In the present embodiment, the first highly heat insulating core material 16a is located after the second highly heat insulating core material 16b. Then, as shown in FIG. 4, the center line CL is located between the first highly heat-insulating core material 16a and the second highly heat-insulating core material 16b when viewed in the inside-out direction (vertical direction).

以上のような第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂは、耐熱性断熱皮材１２の材料より高い断熱性能を有する。例えば、第１高断熱性芯材１６ａの材料の熱伝導率及び第２高断熱性芯材１６ｂの材料の熱伝導率は、耐熱性断熱皮材１２の材料の熱伝導率より小さい。第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂには、例えば、マイクロサーム（マイクロポアインターナショナルリミテッド社製造）を用いることができる。マイクロサームは、可撓性耐熱布袋詰めタイプのシリカエアロゲル断熱材である。なお、第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂの材料は、耐熱性断熱皮材１２の材料と同じであってよい。この場合、耐熱性断熱皮材１２の密度に比して第１高断熱性芯材１６ａの密度及び第２高断熱性芯材１６ｂの密度が高ければよい。これにより、第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂは、耐熱性断熱皮材１２より高い断熱性能を有する。 The first high heat insulating core material 16a and the second high heat insulating core material 16b as described above have higher heat insulating performance than the material of the heat resistant heat insulating skin material 12. For example, the thermal conductivity of the material of the first highly heat-insulating core material 16a and the thermal conductivity of the material of the second highly heat-insulating core material 16b are smaller than the thermal conductivity of the material of the heat-resistant heat insulating skin material 12. For the first high heat insulating core material 16a and the second high heat insulating core material 16b, for example, Microtherm (manufactured by Micropore International Limited) can be used. Microtherm is a flexible heat-resistant cloth bag-type silica airgel heat insulating material. The material of the first high heat insulating core material 16a and the second high heat insulating core material 16b may be the same as the material of the heat resistant heat insulating skin material 12. In this case, it is sufficient that the density of the first high heat insulating core material 16a and the density of the second high heat insulating core material 16b are higher than the density of the heat resistant heat insulating skin material 12. As a result, the first high heat insulating core material 16a and the second high heat insulating core material 16b have higher heat insulating performance than the heat resistant heat insulating skin material 12.

第１蓋１４ａは、耐熱性断熱皮材１２の後面に設けられている。第１蓋１４ａは、耐熱性断熱皮材１２の前面と同じ外形を有している。従って、第１蓋１４ａは、中心角が１８０度である扇形形状を有している。第１蓋１４ａは、スリットＳＬ１を塞いでいる。 The first lid 14a is provided on the rear surface of the heat-resistant heat insulating skin material 12. The first lid 14a has the same outer shape as the front surface of the heat-resistant heat insulating skin material 12. Therefore, the first lid 14a has a fan shape having a central angle of 180 degrees. The first lid 14a closes the slit SL1.

第２蓋１４ｂは、耐熱性断熱皮材１２の前面に設けられている。第２蓋１４ｂは、耐熱性断熱皮材１２の後面と同じ外形を有している。従って、第２蓋１４ｂは、中心角が１８０度である扇形形状を有している。第２蓋１４ｂは、スリットＳＬ２を塞いでいる。 The second lid 14b is provided on the front surface of the heat-resistant heat insulating skin material 12. The second lid 14b has the same outer shape as the rear surface of the heat-resistant heat insulating skin material 12. Therefore, the second lid 14b has a fan shape having a central angle of 180 degrees. The second lid 14b closes the slit SL2.

以上のような第１蓋１４ａ及び第２蓋１４ｂは、耐熱性断熱皮材１２の材料と同じ材料により作製されている。また、第１蓋１４ａ及び第２蓋１４ｂは、コーティングセメントにより耐熱性断熱皮材１２に固定されている。 The first lid 14a and the second lid 14b as described above are made of the same material as the heat-resistant heat insulating skin material 12. Further, the first lid 14a and the second lid 14b are fixed to the heat-resistant heat insulating skin material 12 by the coating cement.

発熱体２０は、第２主面ＩＳに設けられている。発熱体２０は、電力の供給を受けて発熱する。発熱体２０は、前後方向に延びる複数本の電熱線である。複数本の電熱線は、蛇行している。複数本の電熱線は、第２主面ＩＳに埋め込まれている。複数本の電熱線の材料は、例えば、カンタルである。 The heating element 20 is provided on the second main surface IS. The heating element 20 receives power and generates heat. The heating element 20 is a plurality of heating wires extending in the front-rear direction. Multiple heating wires meander. A plurality of heating wires are embedded in the second main surface IS. The material for the plurality of heating wires is, for example, cantal.

［断熱体の製造方法］
以下に、断熱体１０の製造方法について図面を参照しながら説明する。図５は、断熱体１０の製造方法を示したフローチャートである。 [Manufacturing method of heat insulating body]
Hereinafter, a method for manufacturing the heat insulating body 10 will be described with reference to the drawings. FIG. 5 is a flowchart showing a method of manufacturing the heat insulating body 10.

まず、未乾燥のマザー耐火性断熱皮材、未乾燥の第１蓋１４ａ及び未乾燥の第２蓋１４ｂを準備する。マザー耐火性断熱皮材は、複数の耐熱性断熱皮材１２が前後方向に連なった構造体である。具体的には、アルミノシリケート系のバルク・セラミックファイバーを水中に分散し、これにコロイダルシリカ系バインダーを加えてスラリーを作成する。発熱体２０を金型にセットする。スラリーを周知の真空成型法により発熱体２０上に堆積させることにより未乾燥のマザー耐火性断熱皮材する。更に、未乾燥のマザー耐火性断熱皮材の工程と同じ工程により、未乾燥の第１蓋１４ａ及び未乾燥の第２蓋１４ｂを作製する。 First, an undried mother refractory heat insulating skin material, an undried first lid 14a and an undried second lid 14b are prepared. The mother fire-resistant heat insulating skin material is a structure in which a plurality of heat-resistant heat insulating skin materials 12 are connected in the front-rear direction. Specifically, an aluminosilicate-based bulk ceramic fiber is dispersed in water, and a colloidal silica-based binder is added thereto to prepare a slurry. Set the heating element 20 in the mold. By depositing the slurry on the heating element 20 by a well-known vacuum forming method, an undried mother refractory heat insulating skin material is obtained. Further, the undried first lid 14a and the undried second lid 14b are produced by the same step as the step of the undried mother refractory heat insulating skin material.

次に、未乾燥のマザー耐火性断熱皮材、未乾燥の第１蓋１４ａ及び未乾燥の第２蓋１４ｂをオーブンにより乾燥させる。その後、マザー耐火性断熱皮材を複数の耐熱性断熱皮材１２に分割する。これにより、スリットＳＬ１，ＳＬ２が形成されていない耐熱性断熱皮材１２、第１蓋１４ａ及び第２蓋１４ｂを得る。 Next, the undried mother refractory heat insulating skin material, the undried first lid 14a and the undried second lid 14b are dried by an oven. After that, the mother fire-resistant heat insulating skin material is divided into a plurality of heat-resistant heat insulating skin materials 12. As a result, the heat-resistant heat insulating skin material 12, the first lid 14a, and the second lid 14b, in which the slits SL1 and SL2 are not formed, are obtained.

次に、耐熱性断熱皮材１２の第１主面ＯＳと第２主面ＩＳとの間にスリットＳＬ１，ＳＬ２を形成する（スリット形成工程）。具体的には、耐熱性断熱皮材１２の前面及び後面のそれぞれに切削刃により複数の穴を形成することにより、スリットＳＬ１，ＳＬ２を形成する。 Next, slits SL1 and SL2 are formed between the first main surface OS and the second main surface IS of the heat-resistant heat insulating skin material 12 (slit forming step). Specifically, the slits SL1 and SL2 are formed by forming a plurality of holes on the front surface and the rear surface of the heat-resistant heat insulating skin material 12 with a cutting blade.

次に、スリットＳＬ１，ＳＬ２のそれぞれに第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂを挿入する（挿入工程）。 Next, the first highly heat-insulating core material 16a and the second highly heat-insulating core material 16b are inserted into each of the slits SL1 and SL2 (insertion step).

最後に、スリットＳＬ１，ＳＬ２を塞ぐ（封止工程）。具体的には、耐熱性断熱皮材１２の前面及び後面にコーティングセメントを塗布する。そして、第１蓋１４ａ及び第２蓋１４ｂのそれぞれを耐熱性断熱皮材１２の前面及び後面に貼り付ける。この後、コーティングセメントが固化すると、第１蓋１４ａ及び第２蓋１４ｂが耐熱性断熱皮材１２に固定される。以上の工程を経て、断熱体１０が完成する。 Finally, the slits SL1 and SL2 are closed (sealing step). Specifically, the coating cement is applied to the front surface and the rear surface of the heat-resistant heat insulating skin material 12. Then, each of the first lid 14a and the second lid 14b is attached to the front surface and the rear surface of the heat-resistant heat insulating skin material 12. After that, when the coating cement is solidified, the first lid 14a and the second lid 14b are fixed to the heat-resistant heat insulating skin material 12. Through the above steps, the heat insulating body 10 is completed.

［効果］
断熱体１０によれば、断熱体１０の破損をより効果的に抑制できる。より詳細には、断熱体１０では、炉の使用時に、第２主面部１２４が相対的に高温となるので、第２主面部１２４が前後方向に大きく収縮する。そのため、第２主面部１２４の第１直交方向（前後方向）の中心近傍において大きな圧縮応力が発生する。このような大きな圧縮応力は、耐熱性断熱皮材１２の破損の原因となる場合がある。 [effect]
According to the heat insulating body 10, damage to the heat insulating body 10 can be suppressed more effectively. More specifically, in the heat insulating body 10, when the furnace is used, the second main surface portion 124 becomes relatively hot, so that the second main surface portion 124 contracts significantly in the front-rear direction. Therefore, a large compressive stress is generated near the center of the second main surface portion 124 in the first orthogonal direction (front-back direction). Such a large compressive stress may cause damage to the heat-resistant heat insulating skin material 12.

そこで、断熱体１０では、ブリッジ部１２６は、第１主面部１２２と第２主面部１２４とを接続している。そして、ブリッジ部１２６は、内外方向に見て、耐熱性断熱皮材１２の第１直交方向（前後方向）における中心を繋いで得られる中心線ＣＬの全体と重なっている。これにより、第２主面部１２４の第１直交方向（前後方向）の中心近傍に大きな圧縮応力が発生した場合に、圧縮応力は、第２主面部１２４からブリッジ部１２６及び第１主面部１２２に分散される。その結果、第２主面部１２４の第１直交方向の中心近傍に破損が生じることが抑制される。以上より、断熱体１０によれば、断熱体１０の破損をより効果的に抑制できる。 Therefore, in the heat insulating body 10, the bridge portion 126 connects the first main surface portion 122 and the second main surface portion 124. The bridge portion 126 overlaps with the entire center line CL obtained by connecting the centers of the heat-resistant heat insulating skin material 12 in the first orthogonal direction (front-back direction) when viewed from the inside and outside. As a result, when a large compressive stress is generated near the center of the second main surface portion 124 in the first orthogonal direction (front-back direction), the compressive stress is applied from the second main surface portion 124 to the bridge portion 126 and the first main surface portion 122. Be distributed. As a result, it is possible to prevent damage from occurring near the center of the second main surface portion 124 in the first orthogonal direction. From the above, according to the heat insulating body 10, damage to the heat insulating body 10 can be suppressed more effectively.

また、断熱体１０の製造方法によれば、断熱体１０を簡単に作製することができる。より詳細には、特許文献１に記載の炉壁構成材では、スリットを形成するために、複雑な形状を有する外側ブロックを作製する必要がある。そのため、特許文献１に記載の炉壁構成材では、製造工程が複雑になる傾向があった。 Further, according to the method for manufacturing the heat insulating body 10, the heat insulating body 10 can be easily manufactured. More specifically, in the furnace wall constituent material described in Patent Document 1, it is necessary to prepare an outer block having a complicated shape in order to form a slit. Therefore, in the furnace wall constituent material described in Patent Document 1, the manufacturing process tends to be complicated.

一方、断熱体１０の製造方法では、スリット形成工程、挿入工程及び封止工程により、断熱体１０を作製できる。特に、スリット形成工程は、切削刃による穴あけ加工により行われる。従って、スリット形成工程は、特許文献１に記載の外側ブロックを作製する工程に比べて簡単である。よって、断熱体１０の製造方法によれば、断熱体１０を簡単に作製することができる。 On the other hand, in the method for manufacturing the heat insulating body 10, the heat insulating body 10 can be manufactured by a slit forming step, an insertion step, and a sealing step. In particular, the slit forming step is performed by drilling with a cutting blade. Therefore, the slit forming step is simpler than the step of manufacturing the outer block described in Patent Document 1. Therefore, according to the method for manufacturing the heat insulating body 10, the heat insulating body 10 can be easily manufactured.

（第１変形例）
以下に、第１変形例に係る断熱体１０ａについて図面を参照しながら説明する。図６は、断熱体１０ａの分解斜視図である。 (First modification)
Hereinafter, the heat insulating body 10a according to the first modification will be described with reference to the drawings. FIG. 6 is an exploded perspective view of the heat insulating body 10a.

断熱体１０ａは、耐熱性断熱皮材１２の形状において断熱体１０と相違する。より詳細には、図６に示すように、耐熱性断熱皮材１２は、平板形状を有している。そのため、第１主面ＯＳ及び第２主面ＩＳは、平面である。このように、耐熱性断熱皮材１２の形状は、半円筒形状以外の形状であってもよい。 The heat insulating body 10a is different from the heat insulating body 10 in the shape of the heat-resistant heat insulating skin material 12. More specifically, as shown in FIG. 6, the heat-resistant heat insulating skin material 12 has a flat plate shape. Therefore, the first main surface OS and the second main surface IS are flat surfaces. As described above, the shape of the heat-resistant heat insulating skin material 12 may be a shape other than the semi-cylindrical shape.

（第２変形例）
以下に、第２変形例に係る断熱体１０ｂについて図面を参照しながら説明する。図７は、断熱体１０ｂの分解斜視図である。図８は、断熱体１０ｂの上面図である。 (Second modification)
Hereinafter, the heat insulating body 10b according to the second modification will be described with reference to the drawings. FIG. 7 is an exploded perspective view of the heat insulating body 10b. FIG. 8 is a top view of the heat insulating body 10b.

断熱体１０ｂは、第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂの形状において断熱体１０ａと相違する。より詳細には、第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂを左右方向に３等分する。第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂの左の１／３の領域を左部と呼ぶ。第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂの右の１／３の領域を右部と呼ぶ。第１高断熱性芯材１６ａ及び第２高断熱性芯材１６ｂの左部と右部との間を中間部と呼ぶ。 The heat insulating body 10b is different from the heat insulating body 10a in the shapes of the first highly heat insulating core material 16a and the second highly heat insulating core material 16b. More specifically, the first highly heat insulating core material 16a and the second highly heat insulating core material 16b are divided into three equal parts in the left-right direction. The left 1/3 region of the first highly heat insulating core material 16a and the second highly heat insulating core material 16b is referred to as a left portion. The right 1/3 region of the first highly heat insulating core material 16a and the second highly heat insulating core material 16b is referred to as a right portion. The portion between the left portion and the right portion of the first highly heat insulating core material 16a and the second highly heat insulating core material 16b is referred to as an intermediate portion.

図７に示すように、第１高断熱性芯材１６ａの左部の前端は、上下方向に見て、中心線ＣＬより後に位置している。第１高断熱性芯材１６ａの右部の前端は、上下方向に見て、中心線ＣＬより前に位置している。第１高断熱性芯材１６ａの中間部の前端は、上下方向に見て、中心線ＣＬの僅かに後に位置している。スリットＳＬ１の形状は、第１高断熱性芯材１６ａの形状と一致している。 As shown in FIG. 7, the front end of the left portion of the first highly heat insulating core material 16a is located behind the center line CL when viewed in the vertical direction. The front end of the right portion of the first highly heat insulating core material 16a is located in front of the center line CL when viewed in the vertical direction. The front end of the intermediate portion of the first highly heat insulating core material 16a is located slightly behind the center line CL when viewed in the vertical direction. The shape of the slit SL1 matches the shape of the first highly heat insulating core material 16a.

図７に示すように、第２高断熱性芯材１６ｂの左部の後端は、上下方向に見て、中心線ＣＬより後に位置している。第２高断熱性芯材１６ｂの右部の後端は、上下方向に見て、中心線ＣＬより前に位置している。第２高断熱性芯材１６ｂの中間部の後端は、上下方向に見て、中心線ＣＬの僅かに前に位置している。スリットＳＬ２の形状は、第２高断熱性芯材１６ｂの形状と一致している。 As shown in FIG. 7, the rear end of the left portion of the second highly heat insulating core material 16b is located behind the center line CL when viewed in the vertical direction. The rear end of the right portion of the second highly heat insulating core material 16b is located in front of the center line CL when viewed in the vertical direction. The rear end of the middle portion of the second highly heat insulating core material 16b is located slightly in front of the center line CL when viewed in the vertical direction. The shape of the slit SL2 matches the shape of the second highly heat insulating core material 16b.

ブリッジ部１２６は、図８に示すように、上下方向（内外方向）に見て、中心線ＣＬの一部と重なっている。具体的には、ブリッジ部１２６において第１高断熱性芯材１６ａの中間部と第２高断熱性芯材１６ｂの中間部との間に位置する部分は、上下方向（内外方向）に見て、中心線ＣＬと重なっている。 As shown in FIG. 8, the bridge portion 126 overlaps a part of the center line CL when viewed in the vertical direction (inward / outward direction). Specifically, the portion of the bridge portion 126 located between the intermediate portion of the first highly heat insulating core material 16a and the intermediate portion of the second highly heat insulating core material 16b is viewed in the vertical direction (inward and outward directions). , It overlaps with the center line CL.

（その他の実施形態）
本発明に係る断熱体は、その要旨の範囲において変更可能である。 (Other embodiments)
The heat insulating body according to the present invention can be changed within the scope of the gist thereof.

なお、耐熱性断熱皮材１２は、円筒形状であってもよい。また、耐熱性断熱皮材１２は、図１の耐熱性断熱皮材１２を左右に２分割した形状を有していてもよい。すなわち、耐熱性断熱皮材１２は、前後方向に見て、９０度の中心角を有する扇形形状を有していてもよい。 The heat-resistant heat insulating skin material 12 may have a cylindrical shape. Further, the heat-resistant heat-insulating skin material 12 may have a shape obtained by dividing the heat-resistant heat-insulating skin material 12 of FIG. 1 into left and right. That is, the heat-resistant heat insulating skin material 12 may have a fan shape having a central angle of 90 degrees when viewed in the front-rear direction.

なお、断熱体１０，１０ａ，１０ｂは、第２高断熱性芯材１６ｂを備えていなくてもよい。この場合、スリットＳＬ２は不要である。耐熱性断熱皮材１２にスリットＳＬ２が設けられていない場合、耐熱性断熱皮材１２においてスリットＳＬ２に対応する部分は、ブリッジ部１２６の一部である。 The heat insulating bodies 10, 10a and 10b may not be provided with the second highly heat insulating core material 16b. In this case, the slit SL2 is unnecessary. When the heat-resistant heat insulating skin material 12 is not provided with the slit SL2, the portion of the heat-resistant heat insulating skin material 12 corresponding to the slit SL2 is a part of the bridge portion 126.

なお、ブリッジ部１２６は、内外方向に見て、中心線ＣＬの少なくとも一部と重なっていれば、図３、図４、図６及び図８に示した形状以外の形状を有していてもよい。 The bridge portion 126 may have a shape other than the shapes shown in FIGS. 3, 4, 6 and 8 as long as it overlaps with at least a part of the center line CL when viewed in the inward and outward directions. good.

なお、断熱体１０は、前記断熱体１０の製造方法以外の製造方法により作製されてもよい。前記断熱体１０の製造方法は、断熱体１０を簡単に製造するための製造方法である。従って、前記断熱体１０の製造方法より複雑な製造方法により断熱体１０が製造されてもよい。 The heat insulating body 10 may be manufactured by a manufacturing method other than the manufacturing method of the heat insulating body 10. The method for manufacturing the heat insulating body 10 is a manufacturing method for easily manufacturing the heat insulating body 10. Therefore, the heat insulating body 10 may be manufactured by a manufacturing method more complicated than the manufacturing method of the heat insulating body 10.

なお、断熱体１０，１０ａは、炉の壁以外の部分に用いられてもよい。炉の壁以外の部分は、例えば、炉の扉である。 The heat insulating bodies 10 and 10a may be used for a portion other than the wall of the furnace. The part other than the wall of the furnace is, for example, the door of the furnace.

１０，１０ａ，１０ｂ：断熱体
１２：耐熱性断熱皮材
１４ａ：第１蓋
１４ｂ：第２蓋
１６ａ：第１高断熱性芯材
１６ｂ：第２高断熱性芯材
２０：発熱体
１２２：第１主面部
１２４：第２主面部
１２６：ブリッジ部
ＣＬ：中心線
ＩＳ：第２主面
ＯＳ：第１主面
ＳＬ１，ＳＬ２：スリット 10, 10a, 10b: Insulation body 12: Heat-resistant heat-insulating skin material 14a: First lid 14b: Second lid 16a: First high-insulation core material 16b: Second high-insulation core material 20: Heating element 122: First 1 main surface portion 124: second main surface portion 126: bridge portion CL: center line IS: second main surface OS: first main surface SL1, SL2: slit

Claims (6)

炉に用いられる断熱体であって、
前記炉の外面の一部となる第１主面を含んでいる第１主面部、前記炉の内面の一部となる第２主面を含んでいる第２主面部、及び、前記第１主面部と前記第２主面部とを接続しているブリッジ部とを有している耐熱性断熱皮材と、
前記第１主面部と前記第２主面部との間に設けられおり、かつ、前記耐熱性断熱皮材の材料より高い断熱性能を有する材料により作製されている第１高断熱性芯材と、
を備えており、
前記第２主面から前記第１主面に向かう方向を内外方向と定義し、
前記内外方向に直交する方向を第１直交方向と定義し、
前記第１主面部、前記第２主面部及び前記ブリッジ部は、一つの部材を形成しており、
前記ブリッジ部は、前記内外方向に見て、前記耐熱性断熱皮材の前記第１直交方向における中心を繋いで得られる中心線の少なくとも一部と重なっている、
断熱体。 It is a heat insulating material used in a furnace.
A first main surface portion including a first main surface that becomes a part of the outer surface of the furnace, a second main surface portion including a second main surface that becomes a part of the inner surface of the furnace, and the first main surface portion. A heat-resistant heat insulating skin material having a surface portion and a bridge portion connecting the second main surface portion, and
A first highly heat-insulating core material provided between the first main surface portion and the second main surface portion and made of a material having higher heat insulating performance than the material of the heat-resistant heat insulating skin material.
Equipped with
The direction from the second main surface to the first main surface is defined as an inward / outward direction.
The direction orthogonal to the inside and outside directions is defined as the first orthogonal direction, and is defined as the first orthogonal direction.
The first main surface portion, the second main surface portion, and the bridge portion form one member.
The bridge portion overlaps with at least a part of the center line obtained by connecting the centers of the heat-resistant heat insulating skin material in the first orthogonal direction when viewed in the inward and outward directions.
Insulation body. 前記断熱体は、
前記第１主面部と前記第２主面部との間に設けられおり、かつ、前記耐熱性断熱皮材より高い断熱性能を有する第２高断熱性芯材を、
更に備えており、
前記第１高断熱性芯材及び前記第２高断熱性芯材は、前記内外方向に見て、前記第１直交方向に並んでおり、
前記中心線は、前記内外方向に見て、前記第１高断熱性芯材と前記第２高断熱性芯材との間に位置している、
請求項１に記載の断熱体。 The heat insulating body is
A second highly heat-insulating core material provided between the first main surface portion and the second main surface portion and having higher heat insulating performance than the heat-resistant heat insulating skin material.
Further prepared,
The first highly heat-insulating core material and the second highly heat-insulating core material are arranged in the first orthogonal direction when viewed from the inside and outside directions.
The center line is located between the first highly heat-insulating core material and the second highly heat-insulating core material when viewed in the inward and outward directions.
The heat insulating body according to claim 1. 前記第１主面及び前記第２主面は、平面である、
請求項２に記載の断熱体。 The first main surface and the second main surface are flat surfaces.
The heat insulating body according to claim 2. 前記第１主面及び前記第２主面は、前記第１直交方向に平行な中心軸を有する円筒面の一部である、
請求項２に記載の断熱体。 The first main surface and the second main surface are part of a cylindrical surface having a central axis parallel to the first orthogonal direction.
The heat insulating body according to claim 2. 前記断熱体は、
前記第２主面に設けられている発熱体を、
更に備えている、
請求項１ないし請求項４のいずれかに記載の断熱体。 The heat insulating body is
The heating element provided on the second main surface is
Further prepared,
The heat insulating body according to any one of claims 1 to 4. 請求項１ないし請求項５のいずれかに記載の断熱体の製造方法であって、
前記耐熱性断熱皮材の前記第１主面と前記第２主面との間にスリットを形成するスリット形成工程と、
前記スリットに前記第１高断熱性芯材を挿入する挿入工程と、
前記スリットを塞ぐ封止工程と、
を備える、
断熱体の製造方法。 The method for manufacturing a heat insulating body according to any one of claims 1 to 5.
A slit forming step of forming a slit between the first main surface and the second main surface of the heat-resistant heat insulating skin material, and
An insertion step of inserting the first highly heat-insulating core material into the slit, and
The sealing process that closes the slit and
To prepare
How to make a heat insulator.
JP2020188652A 2020-11-12 2020-11-12 Heat insulation body and manufacturing method of heat insulation body Pending JP2022077699A (en)

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