JPH0216274B2 - - Google Patents
Info
- Publication number
- JPH0216274B2 JPH0216274B2 JP58033469A JP3346983A JPH0216274B2 JP H0216274 B2 JPH0216274 B2 JP H0216274B2 JP 58033469 A JP58033469 A JP 58033469A JP 3346983 A JP3346983 A JP 3346983A JP H0216274 B2 JPH0216274 B2 JP H0216274B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tubular
- blanket
- inorganic
- mainly composed
- 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
- 239000000463 material Substances 0.000 claims description 40
- 239000000919 ceramic Substances 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 239000011230 binding agent Substances 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 239000011256 inorganic filler Substances 0.000 claims 1
- 229910003475 inorganic filler Inorganic materials 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Pipeline Systems (AREA)
- Laminated Bodies (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Description
【発明の詳細な説明】
本発明は、管状断熱壁の構造物及びその形成方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tubular insulating wall structure and method of forming the same.
近年エネルギーコスト上昇のため、熱の有効利
用方法が開発され、特にセラミツクフアイバーを
利用した断熱強化が図られている。 In recent years, due to rising energy costs, methods for effectively utilizing heat have been developed, and in particular, efforts are being made to strengthen insulation using ceramic fibers.
しかし、管状壁内に形成される構造物及びその
形成方法は、未だその研究開発などが遅れてお
り、その施工例はきわめて少ない。従来、管状断
熱壁の構造物並びに一般的に行なわれるその形成
方法としては、たとえば「耐火物」（1982年３月
号34−152〜158）に記載されているように、セラ
ミツクフアイバーを主成分した柔軟なブロツク状
物をアンカーで固定して壁内に構造物を形成する
方法である。一方、管内で形成（施工）できない
場合、又は管内の風速が大きい場合には、管内の
高温側にセラミツクフアイバーを主成分とする管
状硬質成形体を配設し、また管内の低温側にセラ
ミツクフアイバーを主成分とする毛布状物を配設
して断熱構造物が形成され、その形成方法として
は前記断熱構造物の外周面にひも等の帯状物を巻
き付けて固定し、このように形成されたものを管
の内側に挿入する同構造物の形成方法である。 However, research and development of structures formed within tubular walls and their formation methods are still lagging behind, and there are very few examples of their construction. Conventionally, tubular insulating wall structures and commonly used methods of forming them have been made using ceramic fiber as the main component, as described in "Refractories" (March 1982 issue 34-152-158). This is a method of forming a structure within a wall by fixing flexible block-like objects with anchors. On the other hand, if formation (construction) cannot be performed inside the pipe, or if the wind speed inside the pipe is high, a tubular hard molded body mainly composed of ceramic fibers is placed on the high temperature side of the pipe, and ceramic fibers are placed on the low temperature side of the pipe. A heat insulating structure is formed by arranging a blanket-like material mainly composed of This is a method of forming the same structure by inserting something inside the tube.
そして、この場合、挿入を容易にするため帯状
物で固定した後、ポリエチレン等の気密性のある
袋で覆い、空気吸引により前記毛布状物を圧縮し
て管内へ挿入する同構造物の形成方法も提案され
ている。 In this case, the method for forming the same structure involves fixing it with a band-like material to facilitate insertion, covering it with an airtight bag such as polyethylene, compressing the blanket-like material by air suction, and inserting it into the pipe. has also been proposed.
しかし、これら従来方法の何れの場合も、前記
管状硬質成形体を用いた断熱構造としては、管と
の固定は毛布状物の復元力だけに頼るものであ
り、復元力が低下した場合には管の径方向で空隙
が発生する欠点があつた。又、前記断熱構造体を
複数接続させる場合、断熱構造体が管の長さ方向
にずれて、接続個所で空隙が発生する場合もあり
得るなどの欠点があつた。 However, in any of these conventional methods, the heat insulating structure using the tubular rigid molded body relies only on the restoring force of the blanket-like material to secure it to the tube, and if the restoring force decreases, There was a drawback that voids were generated in the radial direction of the tube. In addition, when a plurality of the heat insulating structures are connected, there is a drawback that the heat insulating structures may shift in the length direction of the pipe, creating a gap at the connection location.
本発明は以上のような従来の断面構造物及びの
形成方法の欠点を除去改善することを目的とし、
特許請求範囲に記載した管状断熱壁の構造物及び
その形成方法を提供することにより前記目的を達
成するものである。 The purpose of the present invention is to eliminate and improve the drawbacks of the conventional cross-sectional structures and methods of forming them, as described above.
The above object is achieved by providing a tubular insulating wall structure and a method for forming the same as described in the claims.
以下、本発明を図面に基づいて説明する。 Hereinafter, the present invention will be explained based on the drawings.
第１図は、本発明の管状断熱壁の構造物の縦断
面図である。この図面において、１は管壁、２は
無機質発泡性不定形材の充填層、３はセラミツク
フアイバーを主成分とする毛布状物、４はセラミ
ツクフアイバーを主成分とする管状硬質成形体で
ある。この構成において、前記不定形材２は常温
発泡によつて1.5〜３倍に膨張し、前記毛布状物
３及び前記成形体４を圧縮しつつ固定する。 FIG. 1 is a longitudinal cross-sectional view of a tubular insulating wall structure of the present invention. In this drawing, 1 is a tube wall, 2 is a packed layer of an inorganic foamable irregularly shaped material, 3 is a blanket-like article whose main component is ceramic fiber, and 4 is a tubular hard molded article whose main component is ceramic fiber. In this configuration, the irregular shaped material 2 expands 1.5 to 3 times by foaming at room temperature, compressing and fixing the blanket-like material 3 and the molded body 4.
一方、前記成形体４は前記毛布状物３を介して
前記不定形物２を管の内壁へ圧着させるものであ
る。そして、このような作用を起すために必要な
条件として、まず第一には、前記成形体が一定の
強度を持つことであり、水ガラス、シリカゾル、
アルミナゾル、燐酸塩等のいずれか一種又は二種
以上の無機結合剤を３重量％以上添加することに
より、その目的は達せられる。しかし前記無機結
合剤が20重量％以上であるか、又はセラミツクフ
アイバーが50重量％以下になると断熱性が大きく
低下するため、前記成形体の構成比率としては、
セラミツクフアイバーが50〜97重量％であり、残
部無機結合剤が３〜20重量％から成るものが好適
である。そして第二の必要条件としては、前記発
泡性不定形材の硬化後の圧縮強度が前記毛布状物
の復元力以上、即ち1.0Kg／cm2以上であり、かつ
前記不定形材の膨張率がもとの体積の1.5倍から
3.0倍になる性質を有することが最適である。 On the other hand, the molded body 4 presses the irregularly shaped object 2 onto the inner wall of the tube via the blanket-like object 3. First of all, the necessary conditions for this effect to occur are that the molded body has a certain strength, and that it is made of water glass, silica sol,
This objective can be achieved by adding 3% by weight or more of one or more inorganic binders such as alumina sol and phosphates. However, if the inorganic binder is more than 20% by weight or the ceramic fiber is less than 50% by weight, the heat insulation properties will be greatly reduced, so the composition ratio of the molded body is as follows:
Preferably, the ceramic fiber is 50 to 97% by weight, and the balance is 3 to 20% by weight of the inorganic binder. The second necessary condition is that the compressive strength of the foamable irregularly shaped material after curing is greater than or equal to the restoring force of the blanket, that is, 1.0 Kg/cm 2 or more, and that the expansion rate of the irregularly shaped material is From 1.5 times the original volume
It is optimal to have the property of increasing the amount by 3.0 times.
その理由は、該膨張率が1.5倍以下の場合には、
前記不定形材の膨張による前記毛布状物の圧縮が
十分でないため管壁と不定形材又は不定形材と毛
布状物との間で空隙が発生する事があり得るため
である。また空隙が発生しない場合でも管壁への
圧着強度が弱いため、前記断熱構造体の管壁への
固定が不十分となる。一方、膨張率３倍以上であ
ると、膨張及び硬化後の強度は著く低下して1.0
Kg／cm2以下の圧縮強度となるために適当でない。
この条件を満足させる無機質発泡性不定形材とし
て、たとえば商品名「フオームセラボン」又は
「ムキフオーム」などが市販されており、その使
用方法としては、粉末及び液体を混合した後に10
分乃至５時間の間に1.5倍から3.0倍の範囲で発泡
膨張及び硬化をするものである。このような特性
によつて、管内低温側が前記毛布状物であり、高
温側が特許請求範囲第２項に規定される前記成形
体から成り、前記毛布状物と管壁との間に特許請
求範囲第３項で規定される前記不定形材を介在さ
せる事により、前記断熱構造体を管壁に圧着させ
て形成させる事が可能であり、しかも有用なもの
となる。 The reason is that if the expansion rate is 1.5 times or less,
This is because the compression of the blanket-like material due to the expansion of the irregular-shaped material may not be sufficient, so that a gap may occur between the tube wall and the irregular-shaped material or between the irregular-shaped material and the blanket-like material. Further, even when no voids are generated, the strength of the pressure bonding to the pipe wall is weak, so that the heat insulating structure is not sufficiently fixed to the pipe wall. On the other hand, if the expansion rate is 3 times or more, the strength after expansion and curing will decrease significantly to 1.0
It is not suitable as it has a compressive strength of less than Kg/ cm2 .
As an inorganic foamable irregularly shaped material that satisfies this condition, products such as "Forme Cerabone" or "Mukiform" are commercially available.
The foam expands and hardens within a range of 1.5 to 3.0 times within minutes to 5 hours. Due to these characteristics, the low-temperature side of the tube is the blanket-like material, the high-temperature side is the molded article defined in claim 2, and the material as claimed in claim 2 is provided between the blanket-like material and the tube wall. By interposing the irregular shaped member defined in Section 3, it is possible to form the heat insulating structure by press-fitting it to the pipe wall, and it becomes useful.
上記管状断熱壁の構造体の形成方法として、前
記毛布状物と管壁間の全面に前記不定形材を充填
すれば、断熱構造体を強く管壁に圧着できるが、
不定形材による断熱性の低下が起り、これに要す
る労力も大きい。それゆえ特許請求範囲第１項記
載の管状断熱壁の構造と同じ効果を付与し、かつ
断熱性を低下させずに簡便にできる形成方法とし
案出されたのが特許請求範囲第４項に記載の管状
断熱壁の構造物の形成方法である。以下、第３図
〜第６図に示した実施例により説明する。 As a method for forming the structure of the tubular heat insulating wall, if the irregular shaped material is filled in the entire surface between the blanket-like material and the pipe wall, the heat insulating structure can be strongly crimped to the pipe wall.
The irregular shaped material causes a decrease in insulation properties, and the labor required for this is also large. Therefore, a forming method has been devised that provides the same effect as the structure of the tubular heat insulating wall described in claim 1 and can be easily performed without reducing the heat insulation properties, as described in claim 4. is a method of forming a tubular insulating wall structure. The embodiments shown in FIGS. 3 to 6 will be explained below.
第３図及び第４図は従来の形成方法によつて得
られる管状断熱壁構造体の側面図及び断面図であ
る。これらの図面で、管状成形体イの外周面に毛
布状物ロを配設し、ひもなどの帯状物ハで締着し
たまま管内へ挿入することを特徴とする同構造体
の形成方法である。これに対して第５図及び第６
図は特許請求範囲第４項記載の本発明の形成方法
によつて得られる管状断熱壁構造体の側面図及び
断面図である。これらの図面で、管状成形体イの
外周面に毛布状物ロを配設し、ひも等の帯状物ハ
で締着することにより毛布状物ロに凹状部を形成
させ、この凹状部へ発泡性不定形材ニを充填させ
て管内へ挿入する。そして、10分〜５時間の間に
前記不定形材は1.5倍から3.0倍位の体積に発泡膨
張及び硬化し、管壁を圧着することにより管状断
熱壁の構造体は形成される。 3 and 4 are side and cross-sectional views of a tubular insulating wall structure obtained by conventional forming methods. In these drawings, the method for forming the structure is characterized by placing a blanket-like material on the outer peripheral surface of the tubular molded product A, and inserting it into the tube while tightening it with a band-like material such as a string. . In contrast, Figures 5 and 6
The figures are a side view and a sectional view of a tubular heat insulating wall structure obtained by the forming method of the present invention as set forth in claim 4. In these drawings, a blanket-like material is placed on the outer peripheral surface of a tubular molded body A, and a concave portion is formed in the blanket-like material by tightening it with a belt-like material such as a string, and foam is injected into this concave portion. Fill the amorphous material 2 and insert it into the pipe. Then, during a period of 10 minutes to 5 hours, the irregular shaped material expands and hardens to about 1.5 to 3.0 times its volume, and the tube wall is crimped to form a tubular heat insulating wall structure.
以上のように、本発明によれば管内風速が早い
場合や管内でセラミツクフアイバーの断熱材を装
着することがきわめて困難な管の内壁に簡易かつ
迅速に優れた断熱壁の構造体を形成することがで
きる。 As described above, according to the present invention, an excellent insulating wall structure can be easily and quickly formed on the inner wall of a pipe when the wind speed inside the pipe is high or when it is extremely difficult to install ceramic fiber insulation inside the pipe. Can be done.
第１図は、本発明の管状断熱壁の構造物の膨張
前の縦断面図、第２図は本発明の管状断熱壁の構
造物の膨張後の縦断面図、第３図は従来の管状断
熱壁の構造物の側面斜視図、第４図は従来の管状
断熱壁の構造物の横断面図、第５図は本発明の管
状断熱壁の構造物の側面斜視図、第６図は本発明
の管状断熱壁の構造物の横断面図である。
１……管壁、２……無機質発泡性不定形材充填
層、３……セラミツクフアイバーを主成分とする
毛布状物、４……セラミツクフアイバーを主成分
とする管状硬質成形体。
FIG. 1 is a longitudinal sectional view of the tubular insulation wall structure of the present invention before expansion, FIG. 2 is a longitudinal sectional view of the tubular insulation wall structure of the invention after expansion, and FIG. 3 is a conventional tubular insulation wall structure. FIG. 4 is a cross-sectional view of a conventional tubular insulating wall structure, FIG. 5 is a side perspective view of a tubular insulating wall structure of the present invention, and FIG. 1 is a cross-sectional view of an inventive tubular insulating wall structure; FIG. DESCRIPTION OF SYMBOLS 1... Pipe wall, 2... Filled layer of inorganic foamable irregularly shaped material, 3... Blanket-like material containing ceramic fiber as a main component, 4... Tubular hard molded product containing ceramic fiber as a main component.
Claims (1)
分とする毛布状物であり、管内の高温側はセラミ
ツクフアイバーを主成分とする管状硬質成形体で
ある断熱構造体であつて、前記毛布状物と管の内
壁との間に常温で膨張硬化する無機質発泡性不定
形材を介在させ、かつ前記断熱構造体を管の内壁
に圧着し、形成させて成る管状断熱壁の構造物。 ２ 前記セラミツクフアイバーを主成分とする管
状硬質成形体は、セラミツクフアイバーが50〜97
重量％であり、残部実質的に無機質結合剤３〜20
重量％から成り、必要に応じて有機質結合剤、無
機質充填材を添加して成ることを特徴とする特許
請求範囲第１項記載の構造物。 ３ 前記無機質発泡性不定形材は、常温下の膨張
率が1.5〜3.0倍であり、かつ硬化後の圧縮強度が
１Kg／cm2以上であることを特徴とする特許請求範
囲第１項記載の構造物。 ４ セラミツクフアイバーを主成分とする管状硬
質成形体の外周部にセラミツクフアイバーを主成
分とする毛布状物を配設し、前記毛布状物の外周
に帯状物を巻き付けて凹部を形成させ、該凹部に
常温で膨張硬化する無機質発泡性不定形材を充填
し、このように形成されたものを管の内側に挿入
することを特徴とする管状断熱壁の構造物のの形
成方法。 ５ セラミツクフアイバーを主成分とする管状の
硬質成形体は、セラミツクフアイバーが50〜95重
量％であり、残部実質的に無機質結合剤３〜20重
量％から成り、必要に応じて有機質結合剤、無機
質充填材を添加して成ることを特徴とする特許請
求範囲第４項記載の形成方法。 ６ 前記無機質発泡性不定形材は、常温下の膨張
率が1.5〜3.0倍であり、かつ硬化後の圧縮強度が
１Kg／cm2以上であることを特徴とする特許請求範
囲第４項記載の形成方法。[Scope of Claims] 1. The low-temperature side of the pipe is a blanket-like material mainly composed of ceramic fibers, and the high-temperature side of the pipe is a heat-insulating structure that is a tubular hard molded body mainly composed of ceramic fibers, A tubular heat insulating wall structure formed by interposing an inorganic foamable amorphous material that expands and hardens at room temperature between the blanket-like material and the inner wall of the pipe, and press-bonding the heat insulating structure to the inner wall of the pipe. . 2 The tubular hard molded body mainly composed of ceramic fiber has a ceramic fiber content of 50 to 97
% by weight, the remainder being substantially inorganic binder 3-20
% by weight, and an organic binder and an inorganic filler are added as necessary. 3. The inorganic foamable irregular shaped material has an expansion coefficient of 1.5 to 3.0 times at room temperature and a compressive strength of 1 Kg/cm 2 or more after curing, as set forth in claim 1. Structure. 4. A blanket-like material mainly composed of ceramic fibers is disposed on the outer periphery of a tubular hard molded body mainly composed of ceramic fibers, a belt-like material is wrapped around the outer periphery of the blanket-like material to form a recess, and the recess is 1. A method for forming a tubular heat insulating wall structure, characterized by filling a structure with an inorganic foamable irregular shape material that expands and hardens at room temperature, and inserting the thus formed material inside a pipe. 5. A tubular hard molded body mainly composed of ceramic fibers contains 50 to 95% by weight of ceramic fibers, and the remainder substantially consists of 3 to 20% by weight of an inorganic binder, and if necessary, an organic binder and an inorganic binder. 5. The forming method according to claim 4, which comprises adding a filler. 6. The inorganic foamable irregular shaped material has an expansion coefficient of 1.5 to 3.0 times at room temperature and a compressive strength of 1 Kg/cm 2 or more after curing, as set forth in claim 4. Formation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58033469A JPS59162187A (en) | 1983-02-28 | 1983-02-28 | Structure of tubular heat insulative wall and formation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58033469A JPS59162187A (en) | 1983-02-28 | 1983-02-28 | Structure of tubular heat insulative wall and formation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59162187A JPS59162187A (en) | 1984-09-13 |
| JPH0216274B2 true JPH0216274B2 (en) | 1990-04-16 |
Family
ID=12387401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58033469A Granted JPS59162187A (en) | 1983-02-28 | 1983-02-28 | Structure of tubular heat insulative wall and formation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59162187A (en) |
-
1983
- 1983-02-28 JP JP58033469A patent/JPS59162187A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59162187A (en) | 1984-09-13 |
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