JP2743371B2 - Flame retardant duct - Google Patents
Flame retardant ductInfo
- Publication number
- JP2743371B2 JP2743371B2 JP63088553A JP8855388A JP2743371B2 JP 2743371 B2 JP2743371 B2 JP 2743371B2 JP 63088553 A JP63088553 A JP 63088553A JP 8855388 A JP8855388 A JP 8855388A JP 2743371 B2 JP2743371 B2 JP 2743371B2
- Authority
- JP
- Japan
- Prior art keywords
- inorganic
- duct
- composition
- silicate
- insulating layer
- 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
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Duct Arrangements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、屋内配管ダクト，煙突，パイプライン等と
して利用される難燃性ダクト類に関する。Description: TECHNICAL FIELD The present invention relates to flame-retardant ducts used as indoor piping ducts, chimneys, pipelines and the like.
従来、屋内配管ダクトなどのダクト類は、金属筒より
なるダクト本体を所要の設置箇所に配管した後、保温及
び耐火，断熱を目的としてその外周面にロックウール，
ガラスウール等の断熱材を断熱施工することが行なわれ
ていた。Conventionally, ducts such as indoor piping ducts are constructed by piping a duct body made of a metal tube to a required installation location, and then installing rock wool on the outer peripheral surface for the purpose of heat insulation, fire resistance, and heat insulation.
Insulating materials such as glass wool have been used.
しかし、かかる従来のダクト類への断熱施工は、現場
で行なわなければならず、またダクト本体に断熱材を捲
回被覆したり、予め成形された断熱材を当接被覆するた
めに作業が複雑化し、非常な手間を要するものであっ
た。However, such conventional heat insulation work for ducts must be performed on site, and the work is complicated because the heat insulation material is wound and covered on the duct body or the heat insulation material formed in advance is abutted. And it took a lot of trouble.
本発明は上記事情に鑑みなされたもので、耐熱性，耐
火性と断熱性とを兼備し、しかも軽量で、所要の設置箇
所に容易に配設することができる難燃性ダクトを提供す
ることを目的とする。The present invention has been made in view of the above circumstances, and provides a flame-retardant duct which has both heat resistance, fire resistance, and heat insulation, is lightweight, and can be easily disposed at a required installation location. With the goal.
〔課題を解決するための手段〕 本発明は、上記目的を達成するため、金属筒体の外周
面に、珪酸塩を主成分とすると共に、カオリン及び界面
活性剤が配合された無機自硬性組成物に無機もしくは有
機充填材を分散混合した配合物に空気を吹き込んで上記
無機自硬性組成物を発泡させた無機質珪酸塩発泡配合物
を硬化させてなり、上記組成物よりなる無機質珪酸塩発
泡ポリマー中に上記充填材が分散された断熱層を一体に
固着成形したものである。Means for Solving the Problems In order to achieve the above object, the present invention provides an inorganic self-hardening composition in which silicate is the main component and kaolin and a surfactant are blended on the outer peripheral surface of a metal cylindrical body. An inorganic silicate foamed polymer comprising the above composition, wherein an inorganic silicate foamed composition obtained by foaming the inorganic self-hardening composition by blowing air into a composition obtained by dispersing and mixing an inorganic or organic filler in the product is cured. The heat insulating layer in which the filler is dispersed is integrally fixed and formed.
本発明のダクトは、上述したように珪酸塩を主成分と
すると共に、カオリン及び界面活性剤が配合された無機
自硬性組成物に無機もしくは有機充填材を分散混合した
配合物に空気を吹き込んで上記無機自硬性組成物を発泡
させた無機質珪酸塩発泡配合物を硬化させることによっ
て、上記組成物よりなる無機質珪酸塩発泡ポリマー中に
上記充填材が分散された断熱層が金属筒体に一体成形さ
れてなるもので、この無機質珪酸塩ポリマーはその自己
接着力で金属筒体に非常によく接着し、接着力が大きい
ので剥離するおそれはない。このため、接着剤を使用し
なくても断熱層を金属筒体の外周面に一体化できるの
で、その製造が容易かつ安価に行なわれる。また、この
ように金属筒体に予め断熱層が形成され、これを現場で
施工すればよく、この場合単に配管するだけで、その後
に断熱施工をすることがないので、工事が簡単化され
る。The duct of the present invention contains silicate as a main component as described above, and air is blown into a composition obtained by dispersing and mixing an inorganic or organic filler into an inorganic self-hardening composition containing kaolin and a surfactant. By curing the inorganic silicate foaming compound obtained by foaming the inorganic self-hardening composition, the heat insulating layer in which the filler is dispersed in the inorganic silicate foaming polymer made of the composition is integrally formed with the metal cylinder. The inorganic silicate polymer adheres very well to the metal cylinder by its self-adhesive force, and has a large adhesive force, so that there is no possibility of peeling. For this reason, since the heat insulating layer can be integrated with the outer peripheral surface of the metal cylinder without using an adhesive, the production can be performed easily and inexpensively. In addition, the heat insulation layer is formed in advance on the metal cylindrical body in this way, and this may be applied on site. In this case, the piping is simply performed, and the heat insulation is not performed thereafter, so the work is simplified. .
更に、上記断熱層は、通常密度が0.2〜0.9g/cm3で、
軽量であり、このため工事などでの取扱性に問題がな
く、その耐熱温度が通常800〜1000℃で、耐熱，耐火性
に優れたものであるから、防災上からも非常に優れた特
性を示すものである。Further, the heat insulating layer is usually density of 0.2 to 0.9 g / cm 3,
It is lightweight, so it has no problem in handling in construction etc., its heat resistance temperature is usually 800 ~ 1000 ℃, it is excellent in heat resistance and fire resistance, so it has very excellent characteristics from disaster prevention It is shown.
以下、本発明の一実施例につき図面を参照して説明す
る。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第1,2図は、本発明のダクトの実施例を示すもので、
第１図の実施例は金属筒体１の外周面全面に断熱層２が
一体成形されてなるものであり、第２図は第１図の実施
例において断熱層２上に更に外層３が一体に積層されて
いるものである。1 and 2 show an embodiment of the duct of the present invention.
FIG. 1 shows an embodiment in which a heat insulating layer 2 is integrally formed on the entire outer peripheral surface of a metal cylindrical body 1. FIG. 2 shows an embodiment in which an outer layer 3 is further integrated on the heat insulating layer 2 in the embodiment of FIG. Are laminated.
ここで、金属筒体１は、亜鉛鉄板、ステンレススチー
ル板、アルミニウム板等の金属板を円筒状、角筒状等の
筒状に形成したり、螺旋状に巻回して筒状に形成するな
ど、適宜手段で形成できる。その厚さ、長さ、直径（内
径）はその目的等に応じて選定され、限定されるもので
はないが、一例を挙げると金属板の厚さは0.05〜2mm程
度、また金属筒体の長さは50〜400cm、直径は50〜2000m
m程度である。Here, the metal cylindrical body 1 is formed by forming a metal plate such as a zinc iron plate, a stainless steel plate, or an aluminum plate into a cylindrical shape such as a cylindrical shape or a rectangular cylindrical shape, or by spirally winding the metal plate into a cylindrical shape. Can be formed by appropriate means. The thickness, length, and diameter (inner diameter) are selected according to the purpose and the like, and are not limited. For example, the thickness of the metal plate is about 0.05 to 2 mm, and the length of the metal cylinder is, for example. Height is 50-400cm, diameter is 50-2000m
m.
また、断熱層２は、珪酸塩を主体とした無機質珪酸塩
発泡ポリマー中に無機もしくは有機充填材が分散されて
なるもので、これは珪酸塩を主成分とし、カオリン及び
界面活性剤が配合されてなる無機自硬性組成物に無機も
しくは有機充填材を分散混合した配合物に空気を吹き込
んで上記無機自硬性組成物を発泡させた無機質珪酸塩発
泡配合配合物を硬化することによって得ることができ
る。The heat insulating layer 2 is formed by dispersing an inorganic or organic filler in an inorganic silicate foamed polymer mainly composed of silicate, which is mainly composed of silicate, and contains kaolin and a surfactant. By blowing air into a composition obtained by dispersing and mixing an inorganic or organic filler in the inorganic self-hardening composition, thereby curing the inorganic silicate foaming composition obtained by foaming the inorganic self-hardening composition. .
上記無機自硬性組成物につき更に詳述すると、その組
成としては下記の通りである（なお、％は重量％を示
す）。The inorganic self-hardening composition will be described in more detail below. The composition is as follows (% indicates weight%).
この場合、珪酸塩としては珪酸ソーダ、水溶性マグネ
シウム塩としては塩化マグネシウム、珪弗化塩としては
珪弗化ソーダ、メタ珪酸塩としてはメタ珪酸ソーダ、界
面活性剤としてはラウリル硫酸ソーダ等のアニオン系界
面活性剤が好適に用いられる。 In this case, an anion such as sodium silicate as a silicate, magnesium chloride as a water-soluble magnesium salt, sodium silicate fluoride as a silicosilicate, sodium metasilicate as a metasilicate, and sodium lauryl sulfate as a surfactant. A surfactant is preferably used.
また、無機もしくは有機充填剤としては、ロックウー
ル，ガラスウール等の無機繊維、ポリエステル，ポリア
ミド，ポリプロピレン，ビニロン等の有機繊維、ひる
石，シラスバルーン，ガラスバルーン，パーライト等の
軽量発泡骨材、その他砂、岩石やガラス細片など、適宜
な材料が使用できる。なお、上記充填材はその１種を単
独で用いてもよく、２種以上を併用するようにしてもよ
い。Examples of the inorganic or organic filler include inorganic fibers such as rock wool and glass wool, organic fibers such as polyester, polyamide, polypropylene, and vinylon; lightweight aggregates such as vermiculite, shirasu balloon, glass balloon, and pearlite; and others. Appropriate materials such as sand, rocks and glass fragments can be used. In addition, the said filler may be used individually by 1 type, and may be made to use 2 or more types together.
上記無機自硬性組成物に対する充填材の混合割合は種
々選択することができるが、耐火性，難燃性を確保する
点から前者：後者＝99〜50:1〜50、より好ましくは98〜
60:2〜40（重量比）が好適である。The mixing ratio of the filler to the inorganic self-hardening composition can be variously selected, but from the viewpoint of securing fire resistance and flame retardancy, the former: the latter = 99 to 50: 1 to 50, more preferably 98 to 50
A ratio of 60: 2 to 40 (weight ratio) is preferred.
上記の無機自硬性組成物に充填材を分散混合した配合
物を発泡硬化することにより得られた断熱層２は軽量
で、その密度は通常0.2〜0.9g/cm3であり、かつ耐熱温
度は通常800〜1000℃で、耐熱，耐火性に非常に優れて
いるものであると共に、金属に対して接着性が非常に良
好で、その自己接着力で上記金属筒体１に接着剤を使用
することなしに固着一体化されるものである。The heat-insulating layer 2 obtained by foam-hardening a composition obtained by dispersing and mixing a filler in the inorganic self-hardening composition is lightweight, has a density of usually 0.2 to 0.9 g / cm 3 , and has a heat-resistant temperature. It is usually 800-1000 ° C., has excellent heat and fire resistance, and has very good adhesiveness to metal, and uses an adhesive for the metal cylinder 1 due to its self-adhesive strength. It is fixed and integrated without any problem.
なお、上記断熱層２の厚さは特に制限されるものでは
ないが、５〜200mm程度が通常である。The thickness of the heat insulating layer 2 is not particularly limited, but is usually about 5 to 200 mm.
本発明のダクトは、第２図に示したように、必要によ
り外層３を積層することができるが、外層３としてはそ
の目的により適宜選択することができ、例えば金属板な
どを装飾、耐火などの目的で使用することができる。In the duct of the present invention, as shown in FIG. 2, an outer layer 3 can be laminated as necessary. The outer layer 3 can be appropriately selected depending on the purpose. For example, a metal plate or the like is decorated, fireproof, etc. Can be used for the purpose.
上記した如き第１図のダクトを製造する場合は、第３
図に示すように、金属筒体１の外側に所定の間隔を置い
て型枠４を同心円状に配設すると共に、これら金属筒体
１と型枠４との間の空隙５に上述した配合物を注入する
ものであるが、この場合配合物は十分撹拌して配合物中
に空気を巻き込んで発泡させた状態で注入するものであ
る。なお、この撹拌時間や撹拌速度は配合物中への空気
巻き込み量により相違するが、通常50〜1000rpmで５〜3
0分程度の撹拌が採用される。ここで、空気巻き込み量
は最終硬化物の密度が0.2〜0.9g/cm3になるように選定
することが好ましい（なお、上記配合物にこのように空
気を巻き込まないで硬化させた場合の密度は通常0.9〜
1.4g/cm3である）。空気を巻き込んだ配合物を空隙５に
注入した後、静置すると、この配合物（上記組成物）は
自硬性であり、巻き込まれた空気によりエアボイドを形
成した発泡状態で硬化すると共に、その自己接着力によ
り金属筒体１に接着一体化される。その後、型枠４を取
り外すことにより第１図の如きダクトが得られるもので
ある。When manufacturing the duct of FIG. 1 as described above,
As shown in the drawing, the molds 4 are concentrically arranged at predetermined intervals on the outside of the metal cylinder 1, and the above-described mixture is formed in the gap 5 between the metal cylinder 1 and the mold 4. In this case, the compound is injected in a state where the mixture is sufficiently stirred and air is entrapped in the compound to form a foam. The stirring time and the stirring speed vary depending on the amount of air entrained in the composition, but usually 5 to 3 rpm at 50 to 1000 rpm.
Stirring for about 0 minutes is employed. Here, it is preferable to select the amount of air entrapment so that the density of the final cured product is 0.2 to 0.9 g / cm 3 (the density when the composition is cured without entraining air in this way). Is usually 0.9 ~
1.4 g / cm 3 ). When the composition containing air is injected into the cavity 5 and then allowed to stand, the composition (the above-described composition) is self-hardening, and is cured in a foamed state in which air is formed by the entrained air. The adhesive is integrated with the metal cylinder 1 by the adhesive force. Thereafter, the mold 4 is removed to obtain a duct as shown in FIG.
また、第２図の如きダクトは、上記型枠４の代わりに
外層とする部材を配設し、該外層部材と金属筒体との間
に上記配合物を空気を巻き込んだ状態で注入すればよ
い。In addition, the duct as shown in FIG. 2 is provided with a member as an outer layer instead of the above-mentioned formwork 4, and the above-mentioned compound is injected between the outer layer member and the metal cylinder in a state where air is involved. Good.
本発明に係るダクトは、金属筒体１に予め断熱層２が
形成されているので、その配設に際しては単に所要設置
箇所に配管するだけでよく、配管後の断熱施工が必要で
なく、また配管する場合に上記断熱層は軽量であるた
め、工事が非常に簡単に行なわれる。しかも、本発明の
ダクトは、耐熱，耐火性に優れており、このため屋内配
管ダクト，煙突，パイプラインなど、各種用途に有効に
使用される。In the duct according to the present invention, since the heat insulating layer 2 is previously formed on the metal cylindrical body 1, it is only necessary to lay the pipe at a required installation place at the time of disposing the heat insulating layer 2. When the piping is used, the heat insulating layer is lightweight, so that the construction is very easy. Moreover, the duct of the present invention is excellent in heat resistance and fire resistance, and is therefore effectively used for various applications such as indoor piping ducts, chimneys, and pipelines.
本発明によれば、接着剤を使用することなく簡単かつ
安価に断熱層を有するダクトを得ることができると共
に、これを配設する場合は単に配管するだけでよいので
施工が簡略化され、かつ本発明ダクトの断熱層は軽量で
ある上、優れた耐熱，耐火性と断熱性を有しており、従
って実用性に優れたものである。According to the present invention, it is possible to obtain a duct having a heat insulating layer simply and inexpensively without using an adhesive, and when arranging the duct, it is only necessary to simply pipe, so that the construction is simplified, and The heat insulating layer of the duct of the present invention is lightweight and has excellent heat resistance, fire resistance and heat insulating properties, and is therefore excellent in practicality.
第１図及び第２図はそれぞれ本発明ダクトの一実施例を
示す縦断面図、第３図は同ダクトの製造法を説明する横
断面図である。 １……金属筒体、２……断熱層、３……外層。1 and 2 are longitudinal sectional views showing one embodiment of the duct of the present invention, and FIG. 3 is a transverse sectional view for explaining a method of manufacturing the duct. 1 ... metal cylinder, 2 ... heat insulation layer, 3 ... outer layer.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−44678（ＪＰ，Ａ) 特開 昭57−88057（ＪＰ，Ａ) 特開 昭59−36142（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-44678 (JP, A) JP-A-57-88057 (JP, A) JP-A-59-36142 (JP, A)
Claims (1)
ると共に、カオリン及び界面活性剤が配合された無機自
硬性組成物に無機もしくは有機充填材を分散混合した配
合物中に空気を吹き込んで発泡させた無機質珪酸塩発泡
配合物を硬化させてなり、上記配合物よりなる無機質珪
酸塩発泡ポリマー中に上記充填材が分散された断熱層を
一体に固着成形してなることを特徴とする難燃性ダク
ト。An inorganic or organic filler is dispersed and mixed in an inorganic self-hardening composition containing silicate as a main component, kaolin and a surfactant, on the outer peripheral surface of a metal cylindrical body. An inorganic silicate foaming composition foamed by blowing air is cured, and a heat insulating layer in which the filler is dispersed in an inorganic silicate foaming polymer made of the above composition is integrally fixed and molded. Features a flame-retardant duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088553A JP2743371B2 (en) | 1988-04-11 | 1988-04-11 | Flame retardant duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088553A JP2743371B2 (en) | 1988-04-11 | 1988-04-11 | Flame retardant duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01261588A JPH01261588A (en) | 1989-10-18 |
| JP2743371B2 true JP2743371B2 (en) | 1998-04-22 |
Family
ID=13946056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63088553A Expired - Lifetime JP2743371B2 (en) | 1988-04-11 | 1988-04-11 | Flame retardant duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2743371B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325893A (en) * | 1991-10-04 | 1994-07-05 | Tokushu Paper Mfg. Co., Ltd. | Air duct and paper therefor |
| JPH07180899A (en) * | 1993-12-22 | 1995-07-18 | Kurimoto Ltd | Method and device for composite spiral duct |
| JPH07198195A (en) * | 1993-12-28 | 1995-08-01 | Kurimoto Ltd | Silencing heat insulation duct |
| DE59703354D1 (en) * | 1997-01-09 | 2001-05-17 | Juergen Eidmann | Device for suspending air ducts or the like |
| KR100888216B1 (en) * | 2002-06-28 | 2009-03-12 | 주식회사 프라코 | Distributing pipe with heat resisting and high strength and producing method thereof |
| EP2345538B8 (en) | 2010-01-13 | 2014-07-23 | Armacell Enterprise GmbH & Co. KG | Method for fire protection and modification of properties of expanded polyesters |
| PT2345535T (en) | 2010-01-18 | 2016-11-07 | Armacell Entpr Gmbh & Co Kg | Fire protection system for expanded polymers |
| ES2561601T3 (en) | 2010-08-18 | 2016-02-29 | Armacell Enterprise Gmbh & Co. Kg | Protected expanded polyalkylidene terephthalates |
| CN103075581A (en) * | 2013-01-29 | 2013-05-01 | 四川辉利达塑胶科技有限公司 | Three-layer pipe and manufacture method thereof |
| CN103353026A (en) * | 2013-07-18 | 2013-10-16 | 天津市建工集团（控股）有限公司 | Water supply pipe for interior architecture |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788057A (en) * | 1980-11-12 | 1982-06-01 | Shikoku Kaken Kogyo Kk | Composition for lightweight material |
| JPS5936142A (en) * | 1982-08-23 | 1984-02-28 | Mitsui Toatsu Chem Inc | Manufacture of urea resin foam |
| JPS6044678A (en) * | 1983-08-19 | 1985-03-09 | 新日本製鐵株式会社 | Manufacture of heat-insulating pipe |
-
1988
- 1988-04-11 JP JP63088553A patent/JP2743371B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01261588A (en) | 1989-10-18 |
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