JPH0820035B2 - Heat insulation method with metal foil and heat insulation material with metal foil - Google Patents
Heat insulation method with metal foil and heat insulation material with metal foilInfo
- Publication number
- JPH0820035B2 JPH0820035B2 JP60139510A JP13951085A JPH0820035B2 JP H0820035 B2 JPH0820035 B2 JP H0820035B2 JP 60139510 A JP60139510 A JP 60139510A JP 13951085 A JP13951085 A JP 13951085A JP H0820035 B2 JPH0820035 B2 JP H0820035B2
- Authority
- JP
- Japan
- Prior art keywords
- metal foil
- heat insulating
- insulating material
- metal
- heat insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は比較的高温に対する断熱方法、及び金属箔付
断熱材に関するものである。TECHNICAL FIELD The present invention relates to a heat insulating method against a relatively high temperature and a heat insulating material with a metal foil.
［従来の技術］ 従来の断熱材は、熱伝導を抑える目的で出来ている製
品が夛く、ロックウール，ケイソウ土，グラスウール，
パーライト等を材料としたブランケット状のものか板状
のものが用いられていた。[Prior Art] Conventional heat insulating materials are often made with the purpose of suppressing heat conduction, such as rock wool, diatomaceous earth, glass wool,
Blankets or plates made of perlite or the like were used.
「発明が外決しようとする問題点］ しかるに、これらは比較的高温で使用する場合、断熱
材のある部分が輻射熱等の影響を受け部分的に劣化し、
断熱効果が損なわれる等の問題があった。"Problems that the invention intends to make a decision" However, when these are used at a relatively high temperature, the part with the heat insulating material is partially deteriorated due to the influence of radiant heat,
There was a problem that the heat insulation effect was impaired.
本発明の目的は、従来技術の欠点を解消し、断熱材の
劣化を防ぐのみならず、断熱効果を向上させる金属箔に
よる断熱方法及び金属箔付断熱材を提供することにあ
る。An object of the present invention is to provide a heat insulating method using a metal foil and a heat insulating material with a metal foil, which solves the drawbacks of the prior art, prevents deterioration of the heat insulating material, and improves the heat insulating effect.
［問題点を解決するための手段］ 第１の発明は、第１図に示す如く、比較的高温に対す
る断熱を施工するに当り、板状断熱材の片面に金属箔を
貼り付け、該金属箔の表面を金属面とし且つ該金属箔の
裏面を黒色面とした金属箔付断熱材を、金属面を高温側
に向けて施工することを特徴とする金属箔（２）による
断熱方法であり、第２の発明は、この断熱方法を実現す
る断熱材である。即ち、第１図に示す如く、比較的高温
に於いて用いる断熱材（１）において、板状断熱材の高
温側に向く面に金属箔を貼り付け、該金属箔の表面を金
属面とし且つ該金属箔の裏面を黒色面としたことを特徴
とする金属箔断付熱材である。[Means for Solving the Problems] As shown in FIG. 1, the first aspect of the present invention is to apply a metal foil to one surface of a plate-shaped heat insulating material in applying heat insulation to a relatively high temperature. Is a heat-insulating material with a metal foil (2), characterized in that the heat-insulating material with a metal foil, the front surface of which is a metal surface and the back surface of the metal foil is a black surface, is applied with the metal surface facing the high temperature side, A second invention is a heat insulating material that realizes this heat insulating method. That is, as shown in FIG. 1, in a heat insulating material (1) used at a relatively high temperature, a metal foil is attached to the surface of the plate-shaped heat insulating material facing the high temperature side, and the surface of the metal foil is a metal surface. The metal foil cutting and heating material is characterized in that the back surface of the metal foil is a black surface.
［作用］ 金属箔の金属面は、高温の輻射熱をよく反射する性能
をもっている。従って金属箔は高温側より受けた輻射熱
による加熱を防ぐので、金属表面の温度上昇は対流によ
る加熱が主となる。又金属箔は熱伝導がよいので、部分
的な面に受けた輻射熱は金属箔全面に均一化させるよう
熱が広がり、温度が均一化しやすい。そして更に金属箔
裏面側に黒色面を設けることにより裏面側の熱の吸収効
率が高くなるので、裏面側が金属面の時よりも金属箔よ
り裏面側物質への熱移動が緩和されることになる。高温
側に金属面を露出させた金属箔を面し、該金属箔の裏面
側に黒色面を設けたことを特徴とする金属箔に依る断熱
は、裏面側の物質の温度上昇を低く、しかも該物質の局
部的加熱を防止することになるのである。従って断熱材
に金属を貼った第二の発明においては、第一の発明の原
理により輻射熱は金属箔により遮られるので断熱材は輻
射熱の影響がなくなり、表面温度が下がり、局部加熱も
なくなり、金属箔裏面に黒色面が設けられてあることに
よって結果として断熱効果の著しい良化を示すのであ
る。[Operation] The metal surface of the metal foil has a property of well reflecting high-temperature radiant heat. Therefore, since the metal foil prevents heating due to radiant heat received from the high temperature side, the temperature rise of the metal surface is mainly due to convection heating. Further, since the metal foil has good heat conduction, the radiant heat received on a partial surface is spread so as to make it uniform over the entire surface of the metal foil, and the temperature tends to be uniform. Further, by providing a black surface on the back surface side of the metal foil, the heat absorption efficiency of the back surface side becomes higher, so that the heat transfer from the metal foil to the back surface side substance is relaxed as compared with the case where the back surface side is a metal surface. . The heat insulation by the metal foil, which is characterized in that the metal foil with the metal surface exposed to the high temperature side is faced, and the black surface is provided on the back surface side of the metal foil, the temperature rise of the substance on the back surface side is low, and It will prevent localized heating of the material. Therefore, in the second invention in which a metal is attached to the heat insulating material, the radiant heat is blocked by the metal foil according to the principle of the first invention, so that the heat insulating material is not affected by the radiant heat, the surface temperature is lowered, and the local heating is also eliminated. The black surface provided on the back surface of the foil results in significantly improved heat insulation effect.
［実施例］ 実施例−１ 第２図は本発明の一実施例、第３図は従来方法の一実
施例を示す何れも横断面図である。[Embodiment] Embodiment-1 FIG. 2 is a cross-sectional view showing an embodiment of the present invention and FIG. 3 is an embodiment of a conventional method.
第２図において、壁（８）をケーブル（７）が貫通す
る部分に、断熱材（１）としてロックボードを４層積重
ねて充填した。この場合断熱材（１）の表面には高温側
に向って金属面を露出させた金属箔（２）が貼られ、金
属箔の裏面側には黒色塗料を塗布したものである。第３
図は従来技術によるもので、断熱材（１）には金属貼ら
れていない。この両者を同じ高温側の温度条件において
比較試験を行なった結果、本発明に依る金属箔付断熱材
は従来の断熱材を使用したものに比し低温側ケーブル表
面温度で38℃の差があった。In Fig. 2, four layers of rock board as heat insulating material (1) were stacked and filled in the portion where the cable (7) penetrates the wall (8). In this case, a metal foil (2) having a metal surface exposed toward the high temperature side is attached to the surface of the heat insulating material (1), and a black paint is applied to the back surface side of the metal foil. Third
The figure is according to the prior art, the heat insulating material (1) is not metallized. As a result of conducting a comparative test on both of them under the same temperature condition on the high temperature side, the heat insulating material with metal foil according to the present invention has a difference of 38 ° C. in the cable surface temperature on the low temperature side as compared with the one using the conventional heat insulating material. It was
実施例−２ 第４図は第２図と同じ金属箔付断熱材がケーブル表面
と接触する部分に両面とも金属光沢面の金属箔（５）を
挿入した横断面を示す。そして第５図は第４図の両面金
属光沢面をもった金属箔の代りに、断熱材側（即ち高温
側）は金属光沢面で、その裏面のケーブル側は黒色塗料
を施した金属箔を挿入したものを示す。何れも同じ高温
側温度条件で、両者の低温側ケーブル表面温度を比較し
たところ、第５図における低温側ケーブル温度が第４図
における低温側ケーブル表面温度より16℃低かった。即
ち、金属箔裏面に黒色を施したものと金属面のものと大
きな断熱効果の差が認められた。尚、本発明の金属箔の
裏面側を黒色を塗布することのみでなく、その他表面の
処理により黒色にしても、他の黒色物質を貼りつけるこ
とでも良い。Example-2 FIG. 4 shows a cross section in which the same metal foil heat insulating material as in FIG. 2 is inserted into a portion where the heat insulating material with a metal foil comes into contact with the cable surface, and a metal foil (5) having a metallic glossy surface on both sides is inserted. And in FIG. 5, in place of the metal foil having the double-sided metallic glossy surface of FIG. 4, the heat insulating material side (that is, the high temperature side) is a metallic glossy surface, and the cable side on the back side is a metallic foil coated with black paint. The inserted one is shown. When the low temperature side cable surface temperature of both was compared under the same high temperature side temperature condition, the low temperature side cable temperature in FIG. 5 was 16 ° C. lower than the low temperature side cable surface temperature in FIG. That is, a large difference in the heat insulating effect was recognized between the metal foil having a black surface and the metal surface having a black surface. Incidentally, not only the back side of the metal foil of the present invention may be coated with black, but the surface of the metal foil may be treated with black or other black substance may be attached.
［発明の効果］ 本発明により、比較的高温に対して用いる断熱材の輻
射熱による局部劣化がなくなり断熱材の寿命が延びると
共に、高温側金属面，温度側黒色面により輻射熱が減少
し、断熱効果が良化し、ケーブル貫通部に使用した場合
ケーブルの温度上昇を抑え、電流を更に夛く流すことが
出来る等、その経済的効果は大である。EFFECTS OF THE INVENTION According to the present invention, local deterioration due to radiant heat of a heat insulating material used at a relatively high temperature is eliminated and the life of the heat insulating material is extended, and radiant heat is reduced by the high temperature side metal surface and the temperature side black surface, and the heat insulating effect is obtained. Is improved, and when it is used in the cable penetration part, the temperature rise of the cable can be suppressed, and the current can flow more rapidly.
第１図は本発明の一実施例を示す横断面図、第２図は本
発明をケーブルの壁貫通部に実施した横断面図、第３図
は第２図との比較として従来の断熱材使用の横断面図で
ある。又第４図は第２図において断熱材とケーブルの接
触面に両面金属面の金属箔を挿入した横断面図、第５図
は第４図との比較において、高温側（断熱材側）に金属
面、低温側（ケーブル側）に黒色面を配した金属箔を挿
入した横断面図である。 1:断熱材、2:金属箔、3:金属面、 4:黒色面、5:両面金属面の金属箔、 6:片面金属面，その裏面が黒色面の金属箔、 7:ケーブル、8:壁。1 is a cross sectional view showing an embodiment of the present invention, FIG. 2 is a cross sectional view in which the present invention is applied to a wall penetrating portion of a cable, and FIG. 3 is a conventional heat insulating material as a comparison with FIG. Figure 7 is a cross-sectional view of use. Further, FIG. 4 is a cross-sectional view in which a metal foil having a double-sided metal surface is inserted into the contact surface between the heat insulating material and the cable in FIG. 2, and FIG. 5 is a comparison with FIG. It is a cross-sectional view which inserted the metal foil which arranged the black surface on the metal surface and the low temperature side (cable side). 1: Insulation, 2: Metal foil, 3: Metal surface, 4: Black surface, 5: Metal foil with double-sided metal surface, 6: One-sided metal surface, metal foil with black surface on the back side, 7: Cable, 8: wall.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安田 光吉 茨城県日立市日高町５丁目１番１号 日立 電線株式会社日高工場内 (56)参考文献 特開 昭58−110483（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuyoshi Yasuda 5-1-1 Hidaka-cho, Hitachi City, Ibaraki Prefecture Hitachi Cable Co., Ltd. Hidaka Plant (56) References JP-A-58-110483 (JP, A) )
Claims (2)
り、板状断熱材の片面に金属箔を貼り付け、該金属箔の
表面を金属面とし且つ該金属箔の裏面を黒色面とした金
属箔付断熱材を、金属面を高温側に向けて施工すること
を特徴とする金属箔による断熱方法。1. A metal in which a metal foil is attached to one surface of a plate-shaped heat insulating material to make heat insulation against a relatively high temperature, the surface of the metal foil is a metal surface, and the back surface of the metal foil is a black surface. A heat insulating method using a metal foil, characterized in that the heat insulating material with foil is applied with the metal surface facing the high temperature side.
て、板状断熱材の高温側に向く面に金属箔を貼り付け、
該金属箔の表面を金属面とし且つ該金属箔の裏面を黒色
面としたことを特徴とする金属箔付断熱材。2. A heat insulating material used at a relatively high temperature, wherein a metal foil is attached to a surface of the plate-shaped heat insulating material facing the high temperature side,
A heat insulating material with a metal foil, wherein the front surface of the metal foil is a metal surface and the back surface of the metal foil is a black surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60139510A JPH0820035B2 (en) | 1985-06-26 | 1985-06-26 | Heat insulation method with metal foil and heat insulation material with metal foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60139510A JPH0820035B2 (en) | 1985-06-26 | 1985-06-26 | Heat insulation method with metal foil and heat insulation material with metal foil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS622094A JPS622094A (en) | 1987-01-08 |
| JPH0820035B2 true JPH0820035B2 (en) | 1996-03-04 |
Family
ID=15246977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60139510A Expired - Lifetime JPH0820035B2 (en) | 1985-06-26 | 1985-06-26 | Heat insulation method with metal foil and heat insulation material with metal foil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820035B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015025548A (en) * | 2013-07-29 | 2015-02-05 | Ｄｏｗａサーモテック株式会社 | Reflective insulation and heat treat furnace |
| JP5913652B1 (en) * | 2015-02-02 | 2016-04-27 | 克巳 戸上 | Thermal insulation structure, thermal insulation sheet including the same, architectural material, and construction material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110483A (en) * | 1981-12-18 | 1983-07-01 | 松下電器産業株式会社 | Heat insulating material |
-
1985
- 1985-06-26 JP JP60139510A patent/JPH0820035B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015025548A (en) * | 2013-07-29 | 2015-02-05 | Ｄｏｗａサーモテック株式会社 | Reflective insulation and heat treat furnace |
| JP5913652B1 (en) * | 2015-02-02 | 2016-04-27 | 克巳 戸上 | Thermal insulation structure, thermal insulation sheet including the same, architectural material, and construction material |
| JP2016142327A (en) * | 2015-02-02 | 2016-08-08 | 克巳 戸上 | Heat insulation structure, heat insulation sheet and building material including the same, and building material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS622094A (en) | 1987-01-08 |
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