JPH0734425A - Planar heating element - Google Patents

Planar heating element

Info

Publication number
JPH0734425A
JPH0734425A JP20123893A JP20123893A JPH0734425A JP H0734425 A JPH0734425 A JP H0734425A JP 20123893 A JP20123893 A JP 20123893A JP 20123893 A JP20123893 A JP 20123893A JP H0734425 A JPH0734425 A JP H0734425A
Authority
JP
Japan
Prior art keywords
heat
heating element
carbon fiber
fiber
thermoplastic resin
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.)
Pending
Application number
JP20123893A
Other languages
Japanese (ja)
Inventor
Hiroshi Kikuta
宏 菊田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Engineering Corp
Original Assignee
Asahi Engineering Co Ltd Osaka
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Engineering Co Ltd Osaka filed Critical Asahi Engineering Co Ltd Osaka
Priority to JP20123893A priority Critical patent/JPH0734425A/en
Publication of JPH0734425A publication Critical patent/JPH0734425A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Surface Heating Bodies (AREA)

Abstract

PURPOSE:To enhance heat utilization in freeze proofing and building heat retaining by covering highly conductive fiber with thermoplastic resin and then carrying current to it for heat generation. CONSTITUTION:Textile or lattice-formed netting consisting of carbon fiber single yarn or union yarn of carbon fiber and heat-resisting fiber 2, is covered by thermoplastic resin 3. This planar heating element 1 is then cut into pieces of specific dimensions. The piece is laid where required. Power is supplied to it for heat generation. Accordingly, it is usable for freezing prevention, snow melting and heat retention in such as road surface, housing and livestock shed, in high heat use efficiency, easy construction and maintenance.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、例えば道路上の積雪・
凍結を防止するためのロ−ドヒ−テイング用の資材など
に使用し得る面状発熱体に関する。
BACKGROUND OF THE INVENTION The present invention relates to, for example, snowfall on roads.
The present invention relates to a sheet heating element that can be used as a material for road heating to prevent freezing.

【0002】[0002]

【従来技術とその問題点】例えば、冬季における積雪寒
冷地域の道路の凍結および積雪は、道路交通上重大な問
題で地域社会、地域経済に及ぼす影響は甚大であり、ス
リップによる交通事故などでの人的被害も社会的問題と
なっている。かといって、自動車のスリップ防止のため
にスパイクタイヤを自動車に装着することは、粉塵公害
発生の点から各府県では禁止している。従来この道路の
凍結および積雪対策として、塩化カルシウムや塩化ナト
リウムなどの塩化物の路面散布や地下水の路面散水が行
われていた。しかしながら、塩化物の路面散布は極低温
時や多雪時においてはその効果に限界があり、またその
付近の植生に対して悪影響及ぼすなどの問題があり、ま
た地下水の路面散水にしても地下水汲み上げによる地盤
沈下や地下水の枯渇などの懸念が問題視されている。最
近、温風または温水などを循環利用するヒ−トパイプ方
式によるロ−ドヒ−テイングや、高分子樹脂で被覆した
ニクロム線の埋設による電熱方式によるロ−ドヒ−テイ
ングが試験的に試みられている。しかしながら、前者の
ヒ−トパイプ方式においては、施設および施工などが共
に大がかなりなものになり、またダクト・パイプの延長
に伴い温度の低下が著しく、建設費、維持管理費とも膨
大なものとなる。また、後者のニクロム線による電熱方
式においては、ニクロム線が非常に高温となるため絶縁
被覆樹脂が損傷を起こしやすく、また走行車両の荷重に
よる路面変形で該ニクロム線の断絶が起こりやすいため
施設の寿命が短く、維持管理が難しい、といった問題が
ある。一方、特開平1−130488号公報、特開平3
−203185号公報で提案されている面状加熱装置
は、炭化珪素繊維織布をセラミックシ−トでサンドイッ
チ構造に挟んだものとか、炭素質の面状発熱体を石英容
器に内蔵したものであって、いずれもその製作にはかな
りのコストがかかり、また広範囲にわたって加熱する面
状体には不適当である。
2. Description of the Related Art Freezing and snow accumulation on roads in cold and snowy areas in winter are serious problems for road traffic and have a great impact on local communities and economies. Human damage has also become a social problem. However, the installation of spiked tires on automobiles to prevent them from slipping is prohibited in each prefecture due to dust pollution. Conventionally, road surface spraying of chlorides such as calcium chloride and sodium chloride and groundwater sprinkling have been performed as measures to prevent freezing and snow accumulation on this road. However, there is a problem in that the effect of chloride road spraying is limited at extremely low temperatures and during heavy snowfall, and there is a problem that it adversely affects the vegetation in the vicinity. Concerns such as land subsidence and depletion of groundwater have been raised as problems. Recently, a trial of a load heating by a heat pipe system in which hot air or hot water is circulated and an electric heating system by embedding a nichrome wire coated with a polymer resin have been tried. . However, in the former heat pipe method, both facilities and construction are considerably large, and the temperature drops significantly with the extension of the ducts and pipes, resulting in enormous construction costs and maintenance costs. Become. Further, in the latter electric heating method using a nichrome wire, the insulating coating resin is likely to be damaged due to the extremely high temperature of the nichrome wire, and the nichrome wire is likely to be disconnected due to road surface deformation due to the load of the traveling vehicle. There are problems such as short life and difficult maintenance. On the other hand, Japanese Patent Laid-Open Nos. 1-130488 and 3
The planar heating device proposed in Japanese Patent Laid-Open No. 203185 is one in which a woven silicon carbide fiber cloth is sandwiched between ceramic sheets, or a carbonaceous planar heating element is built in a quartz container. All of them are considerably expensive to manufacture, and are not suitable for a wide area heating sheet.

【0003】[0003]

【発明が解決しようとする課題】本発明は、上記した従
来技術の問題点を解決するものであって、熱利用効率が
高く施工性に優れ維持管理が容易な面状発熱体を、例え
ば舗装道路用凍結防止および融雪施設として提供するこ
とを目的としてなされたものである。
SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems of the prior art, and to provide a sheet heating element having high heat utilization efficiency, excellent workability and easy maintenance, for example, pavement. The purpose was to provide it as a road freeze protection and snow melting facility.

【0004】[0004]

【課題を解決するための手段】本発明者は、例えば道路
舗装などにおけるロ−ドヒ−テイングに関して良好な凍
結防止および融雪効果を有する面状発熱体について鋭意
研究を重ねた結果、導電性に富むカ−ボンフアイバ−を
熱可塑性の樹脂で被覆した面状発熱体を用いることによ
り、前記目的を達成することを見出し、この知見に基づ
いて本発明を完成するに至った。すなわち、本発明は導
電性に富むカーボンフアイバーを少なくとも一部に含む
織物体または網状体、即ち、カーボンフアイバー単体糸
で織った織布または網状体、あるいはカーボンフアイバ
ーと耐熱性繊維との混紡糸で織った織布または網状体の
両面を熱可塑性樹脂で被覆し、該熱可塑性樹脂被覆織布
または網状体に通電して発熱せしめ得る面状発熱体とす
るものである。ここで、単体糸とは、長繊維もしくは短
繊維からなるカーボンフアイバーの撚糸、もしくは束状
体を含む無撚糸をいい、また、混紡糸とは、長、短カー
ボンフアイバーと長、短耐熱繊維との混合物からなる
撚、無撚糸をいい、更に、織布または網状態は、経緯糸
にそれぞれ単体糸、混紡糸、耐熱繊維単体糸を用いた混
織布又は網でよいが、少なくとも一部にカーボンフアイ
バーを含み、通電した場合に発熱するものである。以下
の実施例・施工例では主としてロ−ドヒ−テイングとし
て採用した発熱体について説明しているが、もちろん本
発明の面状発熱体をロ−ドヒ−テイング用資材以外に採
用することも可能であり、例えば寒冷地区における住居
の屋根、瓦、壁など、あるいは家畜小屋の屋根や壁など
に本発明に係わる面状の発熱体を埋め込むことにより積
雪・凍結防止はもちろん室内の保温維持にも効果がある
のであり、寒冷地区において本発明の面状発熱体を幅広
く採用することにより該地区の住民の生活環境は著しく
改善されるものである。
Means for Solving the Problems The inventors of the present invention have conducted extensive studies on a planar heating element having good antifreezing and snow melting effects for road heating in road pavement and the like, and as a result, have a high conductivity. It has been found that the above object can be achieved by using a sheet heating element in which a carbon fiber is coated with a thermoplastic resin, and the present invention has been completed based on this finding. That is, the present invention is a woven or reticulated body containing at least part of a carbon fiber rich in conductivity, that is, a woven fabric or reticulated body woven from carbon fiber single yarn, or a blended yarn of carbon fiber and heat resistant fiber. Both sides of a woven woven fabric or a net-like body are coated with a thermoplastic resin to form a sheet-like heating element capable of generating heat by energizing the woven fabric or the net-like body coated with the thermoplastic resin. Here, the single yarn means a twisted yarn of a carbon fiber composed of a long fiber or a short fiber, or a non-twisted yarn including a bundle, and a mixed yarn is a long fiber, a short carbon fiber, a long fiber and a short heat resistant fiber. Twisted or untwisted yarn made of a mixture of the above, and the woven or net state may be a single yarn, a mixed yarn, or a mixed woven fabric or net using a heat-resistant fiber single yarn for the warp and weft yarns, but at least partly It contains carbon fibers and generates heat when energized. In the following examples and construction examples, the heating element mainly used as the road heating is explained, but it is of course possible to use the sheet heating element of the present invention in addition to the material for the road heating. Yes, for example, by embedding a sheet-like heating element according to the present invention in roofs, tiles, walls, etc. of houses in cold districts, roofs and walls of livestock sheds, etc., it is effective not only to prevent snow accumulation and freezing but also to keep indoors warm. Therefore, by widely adopting the sheet heating element of the present invention in cold districts, the living environment of the inhabitants in the districts is remarkably improved.

【0005】[0005]

【実施例】本発明の実施例について以下の詳細に説明す
る。本発明によりなる面状発熱体は、カーボンフアイバ
ー単体糸、あるいはカーボンフアイバーと耐熱性繊維と
の混紡糸を織ってなる織布の両面を熱可塑性樹脂で被覆
したもの(以下略して「織物体」という。)、またはカ
ーボンフアイバー単体糸、あるいはカーボンフアイバー
と耐熱性繊維との混紡糸で格子状に織った網状体を熱可
塑性樹脂で被覆したもの(以下略して「網状体」とい
う。)に所定の電流を通電して該発熱体を発熱せしめる
ことにより、例えば道路上の氷結・積雪を溶かすもので
あって、使用するカーボンフアイバーの比抵抗は10-1
〜10-4Ω・cmの範囲のものが好ましく、特に10-3
Ω・cmオ−ダ−のものが発熱効率の点から特に好まし
い。更に、カーボンフアイバーは、従来のニクロム線方
式に較べて通電時の表面温度が低いので、高温による材
料の断線事故防止などに顕著な効果を有する。上記の耐
熱性繊維材料としては、例えばガラス繊維、アラミド繊
維、ナイロン、ポリエステル、ポリプロピレン、ポリエ
チレン、ポリアセタ−ル、ポリビニ−ルアルコ−ル繊維
などがあげられる。
EXAMPLES Examples of the present invention will be described in detail below. The sheet heating element according to the present invention is a woven fabric formed by weaving a carbon fiber single yarn or a mixed yarn of carbon fiber and heat resistant fiber, and coating both sides with a thermoplastic resin (hereinafter, abbreviated as “woven body”). Or a single fiber of carbon fiber, or a net-woven body woven in a lattice shape with a mixed yarn of carbon fiber and heat-resistant fiber, coated with a thermoplastic resin (hereinafter, abbreviated as “net-shaped body”). Is applied to heat the heating element to melt, for example, freezing and snow on the road, and the carbon fiber used has a specific resistance of 10 -1.
It is preferably in the range of 10 -4 Ω · cm, particularly 10 -3.
Those of Ω · cm order are particularly preferable from the viewpoint of heat generation efficiency. Further, since the carbon fiber has a lower surface temperature when energized as compared with the conventional nichrome wire system, it has a remarkable effect in preventing a wire disconnection accident of a material due to a high temperature. Examples of the heat resistant fiber material include glass fiber, aramid fiber, nylon, polyester, polypropylene, polyethylene, polyacetal, polyvinyl alcohol fiber and the like.

【0006】得られた材料は織物体または網状体なの
で、例えばロ−ドヒ−テイングなどに採用する場合、前
記したヒ−トパイプ方式における配管工事のような特別
な工事を必要とせず容易に舗装面に敷設することができ
る。また、通電することにより熱源となるカーボンフア
イバーは、織物体または網状体内に織り込まれた形態で
形成されているので、位置ずれなどは一切起こらないも
のである。更に、従来のヒートパイプ方式やニクロム線
方式においては、熱源のパイプや配線などの外径が非常
に太く、このため舗装表面へのひび割れなどの悪影響あ
ったのでどうしても深い位置に敷設する必要があり、し
たがって、熱源から舗装表面への距離が大きくなり熱効
率の点で問題があった。これに対して、本発明よりなる
面状発熱体は、薄いシ−ト状となっているので、舗装道
路の表層近くに敷設することができ、熱効率が優れてお
り、本発明は前記の問題点を著しく改善したものであ
る。前記の如く、織物体または網状体の両面は熱可塑性
樹脂で被覆されているが、該被覆はカーボンフアイバー
の電気的絶縁体としての作用と外部からの損傷を防止す
る作用のために必須なものである。
Since the obtained material is a woven material or a net-like material, when it is used for road heating, for example, it does not require any special work such as the above-mentioned heat pipe system piping work and can be easily paved. Can be laid on. Further, since the carbon fiber, which becomes a heat source when energized, is formed in a form woven into a woven body or a net-like body, no positional displacement occurs. Furthermore, in the conventional heat pipe method and nichrome wire method, the outer diameter of the heat source pipe and wiring is very large, which has adverse effects such as cracks on the pavement surface, so it is necessary to lay it in a deep position. Therefore, the distance from the heat source to the pavement surface becomes large and there is a problem in terms of thermal efficiency. On the other hand, since the sheet heating element according to the present invention has a thin sheet shape, it can be laid near the surface layer of a paved road and has excellent thermal efficiency. This is a significant improvement in points. As described above, both sides of the woven body or the mesh body are coated with the thermoplastic resin, and the coating is essential for the action of the carbon fiber as an electrical insulator and the action of preventing external damage. Is.

【0007】熱可塑性樹脂は特に限定するものではな
く、熱的に安定した材料であることが好ましく、例えば
アスフアルト舗装およびコンクリ−ト舗装の凍結防止お
よび融雪材料として通常用いられている、アスフアル
ト、石油樹脂、ゴム、ワックス、軟質ポリ塩化ビニ−
ル、ポリ酢酸ビニ−ル、変成ポリ酢酸ビニ−ル、エチレ
ン一酢酸ビニ−ル共重合体、ポリ塩化ビニリデン、塩化
ビニ−ル一酢酸ビニ−ル共重合体、塩化ビニ−ル塩化ビ
ニリデン共重合体、ポリウレタン、変成ポリウレタン、
ポリビニ−ルアルコ−ル、変成ポリビニ−ルアルコ−ル
および変成ポリアミドなどの内から1種または2種以上
混合したものの中から適宜選択することができる。本発
明よりなる面状発熱体はシ−ト状となっており、その厚
さは施工上通常10mm以下が好ましい。また、カーボ
ンフアイバーは高強度で弾性率も高いので、一体成形さ
れた面状発熱体は,アスファルト舗装あるいはコンクリ
−ト舗装の際、補強効果にも寄与するものである。
The thermoplastic resin is not particularly limited and is preferably a thermally stable material. For example, asphalt and petroleum, which are commonly used as antifreeze and snowmelt materials for asphalt pavement and concrete pavement. Resin, rubber, wax, soft polyvinyl chloride
Polyvinyl acetate, modified poly (vinyl acetate), ethylene-vinyl acetate copolymer, polyvinylidene chloride, vinyl chloride-vinyl acetate mono-copolymer, vinyl chloride vinylidene chloride copolymer Coalesced, polyurethane, modified polyurethane,
Polyvinyl alcohol, modified polyvinyl alcohol, modified polyamide and the like can be appropriately selected from one kind or a mixture of two or more kinds. The sheet heating element according to the present invention has a sheet shape, and its thickness is preferably 10 mm or less in terms of construction. Further, since the carbon fiber has a high strength and a high elastic modulus, the sheet heating element integrally formed also contributes to the reinforcing effect during asphalt pavement or concrete pavement.

【0008】次に本発明よりなる面状発熱体を、ロ−ド
ヒ−テイングに採用した場合の施工例を図面に基づいて
説明する。図1は上記した格子状をなす網状体の面状発
熱体(1)の一部の部分断面図であり、(2)は束状に
なったカーボンフアイバー、あるいはカーボンフアイバ
ーと耐熱繊維との混紡糸であり、これらはそれぞれ格子
状に織られて網状体をなしており、(3)は上記した網
状体を被覆している熱可塑性樹脂である。網状体の成形
は、熱可塑性樹脂で被覆したカーボンフアイバー、ある
いはカーボンフアイバーと耐熱性繊維との混紡糸を格子
状に織り込むか、あるいは格子状に織られた網状体に熱
可塑性樹脂製テ−プなどを巻回して成形してもよく、ま
た格子状の溝を有す上下金型を用いてもよい。そして、
上記網状体は、例えば2m2 毎に切断して敷設し,それ
ぞれに所定の電流を通電して発熱体を発熱せしめるので
ある。
Next, an example of construction in which the sheet heating element according to the present invention is adopted for load heating will be described with reference to the drawings. FIG. 1 is a partial cross-sectional view of a part of the above-mentioned lattice-shaped reticulated sheet heating element (1), and (2) is a bundle of carbon fibers or a blend of carbon fibers and heat-resistant fibers. These are yarns, each of which is woven in a lattice pattern to form a net, and (3) is a thermoplastic resin that coats the above net. The reticulated body is formed by weaving a carbon fiber coated with a thermoplastic resin, or a mixed yarn of carbon fiber and heat resistant fiber in a lattice pattern, or by forming a thermoplastic resin tape on the reticulated body. Etc. may be wound and molded, or upper and lower molds having lattice-shaped grooves may be used. And
The mesh-like body is cut, for example, every 2 m 2 and is laid, and a predetermined current is applied to each to heat the heating element.

【0009】図2は発熱体をロ−ドヒ−テイングとして
採用した場合の施工例の断面概略図であって、図におい
て(1)は面状発熱体、(4)は電線ケ−ブル、(5)
は制御盤、(6)は表層アスフアルト−コンクリ−ト、
(7)は下層アスフアルト−コンクリ−トである。本施
工例において採用した網状体の仕様は、カーボンフアイ
バー(旭化成登録商標名「ハイ・カ−ボロンAM−40
0−EW−1200」)を1m2 当たり160g、ガラ
ス繊維を1m2 当たり300g用いて開口部が15mm
角の網状体を成形し、さらに熱可塑性のスチレン・ブタ
ジエン共重合体(旭化成登録商標名「アサフレック
ス」)で被覆した。被覆物の厚さは5mmであった。
FIG. 2 is a schematic cross-sectional view of a construction example in which a heating element is used as a road heating. In the figure, (1) is a planar heating element, (4) is a wire cable, and ( 5)
Is a control panel, (6) is a surface asphalt-concrete,
(7) is a lower layer asphalt concrete. The specifications of the reticulated body used in this construction example are carbon fiber (trade name “High Carboron AM-40”, registered by Asahi Kasei).
0-EW-1200 ") is used in an amount of 160 g per 1 m 2 , glass fiber is used in an amount of 300 g per 1 m 2, and the opening is 15 mm.
The corner net-like body was molded and further covered with a thermoplastic styrene-butadiene copolymer (Asaflex Co., Ltd. trade name "Asaflex"). The coating thickness was 5 mm.

【0010】敷設条件、実験結果は下記の通りであっ
た。 1 敷設場所 東北地方の実験所内敷地 2 気象条件 施工日当日 最高温度 3度 最低気温 −4度 曇り、既に5cmの積雪があった。 施工日翌日 最高気温 2度 最低気温 −3度 曇り、後小雪、更に2cmの積雪があった。 3 敷設条件 上記網状体を1メ−トル×2メ−トル
に切断し、網状体全面に通電するようにカーボンフアイ
バーをそれぞれ接続した。次に試験用道路アスフアルト
施工時に上記発熱体をアスフアルト舗装内、表面より5
cmのところに敷設セットした。 4 通電条件 敷設が終了した午後3時から100V
の電流を1時間通電、1時間遮断する条件で施工日翌日
午前10時まで継続した。 5 実験結果 施工日翌日午前10時における発熱体
埋設カ所の地表には一切の積雪はみられず、また凍結も
していなかった。発熱体を敷設していないカ所の地表に
は5cmほどの積雪があり、その表面は一部凍結してい
た。
The laying conditions and experimental results were as follows. 1 Laying place Site on the experimental site in the Tohoku region 2 Meteorological conditions Day of construction day Maximum temperature 3 degrees Minimum temperature -4 degrees Cloudy and there was already 5 cm of snow. On the day after the construction day, the maximum temperature was 2 ° C and the minimum temperature was -3 ° C. It was cloudy, followed by light snow and 2 cm of snow. 3 Laying Conditions The above mesh was cut into 1 meter × 2 meters, and carbon fibers were connected so as to energize the entire surface of the mesh. Next, at the time of construction of the test road asphalt, the above-mentioned heating element should be placed inside the asphalt pavement from the surface.
It was laid and set at cm. 4 Energization condition 100V from 3:00 pm when the installation is completed
The current was applied for 1 hour and cut off for 1 hour, and continued until 10 am the day after the construction day. 5 Experimental results No snow was found on the surface of the heating element burial site at 10 am the day after the construction day, and there was no freezing. There was about 5 cm of snow on the surface of the ground where no heating element was laid, and the surface was partially frozen.

【0011】[0011]

【発明の効果】本発明に係わる面状発熱体は、導電性に
富むカーボンフアイバー単体糸、あるいはカーボンフア
イバーと耐熱性繊維とを混紡糸した糸で織った織物体、
あるいは網状体の両面を熱可塑性樹脂で被覆してシ−ト
状としており、発熱体に所定の電流を所定の条件で通電
して該発熱体を発熱せしめて例えば積雪を溶かすといっ
たロ−ドヒ−テイング用資材として有用なものである。
更に、本発明の面状発熱体はロ−ドヒ−テイング以外に
も採用することもでき、例えば寒冷地区における住居の
屋根、瓦、壁など、あるいは家畜小屋の屋根や壁などに
本発明に係わる面状の発熱体を埋め込むことにより積雪
・凍結防止はもちろん室内の保温維持にも効果があるの
であって、寒冷地区において本発熱体を幅広く採用する
ことにより該地区の住民の生活環境は著しく改善される
ものである。
EFFECT OF THE INVENTION The sheet heating element according to the present invention is a woven fabric body woven with carbon fiber single yarn which is rich in conductivity or a yarn in which carbon fiber and heat resistant fiber are mixed-spun.
Alternatively, both sides of the mesh-like body are covered with a thermoplastic resin to form a sheet, and a heating element is energized under a predetermined condition to cause the heating element to generate heat to melt snow, for example. It is a useful material for towing.
Further, the sheet heating element of the present invention can be adopted in addition to the road heating, and is related to the present invention for roofs, tiles, walls, etc. of houses in cold districts, roofs and walls of livestock sheds, etc. By embedding a planar heating element, it is effective not only for preventing snow and freezing, but also for maintaining indoor heat insulation. Widely adopting this heating element in cold areas significantly improves the living environment of the residents in that area. It is what is done.

【図面の簡単な説明】[Brief description of drawings]

【図1】格子状をなす網状の面状発熱体の一部の部分切
欠図。
FIG. 1 is a partial cutaway view of a part of a grid-shaped mesh-shaped planar heating element.

【図2】発熱体をロードヒーテイングとして使用した場
合の施工例の断面概略図。
FIG. 2 is a schematic cross-sectional view of a construction example in which a heating element is used as road heating.

【符号の説明】[Explanation of symbols]

1 面状発熱体 2 カーボンフアイバー含有糸 3 熱可塑性樹脂 4 電線ケーブル 5 制御盤 6 表層アスファルト−コンクリート 7 下層アスファルト−コンクリート 1 Sheet heating element 2 Carbon fiber-containing yarn 3 Thermoplastic resin 4 Electric wire cable 5 Control panel 6 Surface asphalt-concrete 7 Lower layer asphalt-concrete

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 カーボンフアイバー単体糸で織った織布
または網状体、あるいはカーボンフアイバーと耐熱性繊
維との混紡糸で織った織布または網状体の両面を熱可塑
性樹脂で被覆し、該熱可塑性樹脂被覆織布または網状体
に通電して発熱せしめ得ることを特徴とする面状発熱
体。
1. A woven fabric or a net body woven with a single fiber of a carbon fiber, or a woven fabric or a net body woven with a mixed yarn of a carbon fiber and a heat-resistant fiber, both surfaces of which are coated with a thermoplastic resin, and the thermoplastic resin A sheet heating element capable of generating heat by energizing a resin-coated woven cloth or a mesh.
JP20123893A 1993-07-22 1993-07-22 Planar heating element Pending JPH0734425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20123893A JPH0734425A (en) 1993-07-22 1993-07-22 Planar heating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20123893A JPH0734425A (en) 1993-07-22 1993-07-22 Planar heating element

Publications (1)

Publication Number Publication Date
JPH0734425A true JPH0734425A (en) 1995-02-03

Family

ID=16437632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20123893A Pending JPH0734425A (en) 1993-07-22 1993-07-22 Planar heating element

Country Status (1)

Country Link
JP (1) JPH0734425A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2144942A1 (en) * 1998-01-30 2000-06-16 Marmol Benitez Pedro Angel Low-consumption electrical heating system for low- temperature heat foci
JP2019030227A (en) * 2017-08-04 2019-02-28 株式会社Cmc Farm land heating system
JP2023101344A (en) * 2022-01-07 2023-07-20 富士通株式会社 Information recommendation method, information recommendation program and information recommendation device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2144942A1 (en) * 1998-01-30 2000-06-16 Marmol Benitez Pedro Angel Low-consumption electrical heating system for low- temperature heat foci
JP2019030227A (en) * 2017-08-04 2019-02-28 株式会社Cmc Farm land heating system
JP2023101344A (en) * 2022-01-07 2023-07-20 富士通株式会社 Information recommendation method, information recommendation program and information recommendation device

Similar Documents

Publication Publication Date Title
CN106702850B (en) Prevent antifreeze road icy on road and its construction method
US5447389A (en) Insulation system for soil
JP2759312B2 (en) Planar heating element
AU547999B2 (en) Method of directing or holding water
CN111287084B (en) Intelligent anti-freezing bridge deck structure and construction method
US20200305239A1 (en) Puncture-resistant sheet heater and structures made therewith
JPH0734425A (en) Planar heating element
CN102322011B (en) Active pavement thermal insulation anti-skid facility and construction method thereof
CN207373821U (en) A kind of fire resistant water-proof polyurethane coiled material
CN206189268U (en) System for utilize groundwater regulation and control pitch bridge deck pavement temperature
US20160355997A1 (en) Method of retrofitting a ground surface to resist snow and ice
CN105951558A (en) Asphalt pavement preventative maintenance material and intelligent pulverizing device thereof
JP2566537B2 (en) Buried sheet material for reinforcement of asphalt pavement
JP3800365B2 (en) Weed protection sheet for surface slope
KR102356397B1 (en) Heating cable for snow-melting, snowmelting system using the same
JP4129438B2 (en) Buried heating element and asphalt pavement structure
CN112118646A (en) Carbon fiber heating grid and manufacturing method thereof
CN213152395U (en) Carbon fiber heating grid
JP4452649B2 (en) Buried heating element and asphalt pavement structure
KR200363112Y1 (en) Electric Heater Made of Carbon Fiber Textiles which have Edges Connected fully with Metal wires for Good Electric Contact
CN215405385U (en) Novel negative pressure quick drainage structure of mating formation
JP3032188B1 (en) Heat generation mat, road surface construction method using the same, and road surface structure
CN220318814U (en) High-stability modified asphalt waterproof coiled material
WO2004016856A1 (en) Method of heating substrates heating device and use thereof
KR102127680B1 (en) Multi pipe utility conduit and construction method thereof