JP2012004028A - Heater of piping - Google Patents
Heater of piping Download PDFInfo
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- JP2012004028A JP2012004028A JP2010139465A JP2010139465A JP2012004028A JP 2012004028 A JP2012004028 A JP 2012004028A JP 2010139465 A JP2010139465 A JP 2010139465A JP 2010139465 A JP2010139465 A JP 2010139465A JP 2012004028 A JP2012004028 A JP 2012004028A
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- piping
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- 239000004642 Polyimide Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
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Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- 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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Pipe Accessories (AREA)
Abstract
Description
本発明は、主に円筒形の配管内を流通する流体を加熱するための電気エネルギーを利用する加熱装置に関するものであり、更に詳細には、長手方向にスリットを有する円筒状の面状ヒータが、円筒状の断熱材の内部に脱着可能に備えられた加熱装置に関するものである。 The present invention relates to a heating device that uses electrical energy for heating a fluid that flows mainly in a cylindrical pipe. More specifically, the present invention relates to a cylindrical planar heater having a slit in the longitudinal direction. Further, the present invention relates to a heating device that is detachably provided inside a cylindrical heat insulating material.
従来から、各種の配管等の外側表面に取付けて、配管内を流通する流体を加熱するための面状ヒータが広く利用されている。このようなヒータの形態としては、例えば、特開平１１−７４０６６号公報、特開２００４−１５８２７１号公報に示すように、配管の外周に螺旋状に巻き付けるテープ状のヒータ、特表２０００−５０５５８２号公報、特開２００２−２９５７８３号公報、特開２００２−３５２９４１号公報に示すように、発熱素子（ヒータ）と断熱材が一体となったジャケットヒータ等が開発されている。 2. Description of the Related Art Conventionally, planar heaters that are attached to the outer surfaces of various pipes and the like and heat fluid flowing through the pipes have been widely used. As a form of such a heater, for example, as shown in JP-A-11-74066 and JP-A-2004-158271, a tape-like heater wound around the outer circumference of a pipe, JP 2000-505582A, is disclosed. As shown in Japanese Patent Laid-Open Nos. 2002-295883 and 2002-352941, jacket heaters in which a heating element (heater) and a heat insulating material are integrated have been developed.
また、前記のような面状ヒータに使用される発熱素子としては、グラフトカーボン、カーボン粉末、金属粉末、あるいは金属酸化物粉末等を含む合成樹脂（導電性樹脂）を用いて、ガラスクロスに含浸させたもの、前記のような導電性樹脂をポリエステル、ポリイミド、マイカ等の絶縁基材シートに塗布または印刷により保持させたもの、金属箔をエッチングして回路としたもの、あるいは金属抵抗線を絶縁基板シートに張り巡らして回路としたもの等が挙げられる。 In addition, as a heating element used in the planar heater as described above, a glass cloth is impregnated using a synthetic resin (conductive resin) containing graft carbon, carbon powder, metal powder, or metal oxide powder. Ingredients, those obtained by applying or printing a conductive resin such as the above to an insulating base sheet such as polyester, polyimide, mica, etc., those obtained by etching a metal foil into a circuit, or insulating metal resistance wires Examples include a circuit formed on a substrate sheet.
ジャケットヒータの中でも、長手方向にスリットを有し、面状ヒータと断熱材が一体に接着された弾力性があるジャケットヒータは、加熱対象の配管に容易に取付けられるという長所がある。しかし、面状ヒータと断熱材が分離できない構成なので、面状ヒータが断線等の不都合を起した場合、断熱材も新規なものと交換しなければならないという短所がある。また、面状ヒータと断熱材が一体に接着されず、面状ヒータが断熱材から脱着可能である加熱装置（ジャケットヒータ）は、前記のような短所はないが、面状ヒータは断熱材と較べて厚みがたいへん薄く、柔軟性があるものを使用すると、折れ曲がった状態で配管に装着されたり、装着後に振動等により配管から脱落することがあった。 Among jacket heaters, an elastic jacket heater having a slit in the longitudinal direction and having a planar heater and a heat insulating material bonded together has an advantage that it can be easily attached to a pipe to be heated. However, since the planar heater and the heat insulating material cannot be separated, there is a disadvantage that when the planar heater has a problem such as disconnection, the heat insulating material must be replaced with a new one. In addition, the heating device (jacket heater) in which the planar heater and the heat insulating material are not integrally bonded and the planar heater is detachable from the heat insulating material does not have the disadvantages described above, but the planar heater is When using a material that is very thin and flexible, it may be attached to the pipe in a bent state, or may fall off the pipe due to vibration or the like after installation.
従って、本発明が解決しようとする課題は、長手方向にスリットを有する円筒状の面状ヒータが、円筒状の断熱材の内部に脱着可能に備えられた配管用の加熱装置であって、面状ヒータの折れ曲がり、振動等による配管からの脱落を防止できる加熱装置を提供することである。 Therefore, the problem to be solved by the present invention is a heating apparatus for pipes in which a cylindrical planar heater having a slit in the longitudinal direction is detachably provided inside a cylindrical heat insulating material. It is providing the heating apparatus which can prevent the drop-off from piping by bending, a vibration, etc. of a cylindrical heater.
本発明者らは、これらの課題を解決すべく鋭意検討した結果、前記のような加熱装置において、円筒状の面状ヒータの外側表面に、円周方向に対して弾力性を有する金属板及び／または耐熱性樹脂板を取付けることにより、面状ヒータを容易に所望の形状に保持することが可能となり、面状ヒータの折れ曲がり、振動による配管からの脱落を防止できることを見出し、本発明の配管の加熱装置に到達した。
すなわち本発明は、長手方向にスリットを有する円筒状の面状ヒータが、円筒状の断熱材の内部に脱着可能に備えられた配管の加熱装置であって、該円筒状の面状ヒータの外側表面に、円周方向に対して弾力性を有する金属板及び／または耐熱性樹脂板が取付けられてなることを特徴とする配管の加熱装置である。
As a result of intensive studies to solve these problems, the present inventors have found that in the heating device as described above, a metal plate having elasticity in the circumferential direction on the outer surface of the cylindrical planar heater, and It has been found that by attaching a heat-resistant resin plate, the planar heater can be easily held in a desired shape, and the planar heater can be bent and prevented from falling off the piping due to vibration. Reached the heating device.
That is, the present invention is a pipe heating apparatus in which a cylindrical planar heater having a slit in the longitudinal direction is detachably provided in a cylindrical heat insulating material, and the outside of the cylindrical planar heater is provided. A pipe heating apparatus, wherein a metal plate and / or a heat-resistant resin plate having elasticity in a circumferential direction is attached to a surface.
本発明の配管の加熱装置は、円周方向に対して弾力性を有する金属板及び／または耐熱性樹脂板を面状ヒータの外側表面に装着した構成なので、厚みが比較的に薄い面状ヒータを所望の形状に保持することができる。その結果、面状ヒータと断熱材が一体に接着されない加熱装置の短所である、面状ヒータの折れ曲がり、振動による配管からの脱落を防止することが可能である。 Since the heating device for piping according to the present invention has a configuration in which a metal plate and / or a heat-resistant resin plate having elasticity in the circumferential direction is mounted on the outer surface of the planar heater, the thickness of the planar heater is relatively thin. Can be held in a desired shape. As a result, it is possible to prevent the planar heater from being bent and coming off from the piping due to vibration, which is a disadvantage of the heating device in which the planar heater and the heat insulating material are not bonded together.
本発明の配管の加熱装置は、長手方向にスリットを有する円筒状の面状ヒータが、円筒状の断熱材の内部に脱着可能に備えられた加熱装置に適用される。
以下、本発明の配管の加熱装置を、図１〜図４に基づいて説明するが、本発明がこれにより限定されるものではない。
尚、図１は、本発明の加熱装置における面状ヒータの一例を示す斜視図である。図２は、本発明の加熱装置における図１以外の面状ヒータの一例を示す斜視図である。図３は、本発明が適用可能な加熱装置の一例を示す斜視図である。図４は、本発明の加熱装置の一例を示す断面図である。
The piping heating device of the present invention is applied to a heating device in which a cylindrical planar heater having a slit in the longitudinal direction is detachably provided inside a cylindrical heat insulating material.
Hereinafter, although the heating apparatus of piping of this invention is demonstrated based on FIGS. 1-4, this invention is not limited by this.
FIG. 1 is a perspective view showing an example of a planar heater in the heating apparatus of the present invention. FIG. 2 is a perspective view showing an example of a planar heater other than FIG. 1 in the heating apparatus of the present invention. FIG. 3 is a perspective view showing an example of a heating apparatus to which the present invention can be applied. FIG. 4 is a cross-sectional view showing an example of the heating device of the present invention.
本発明の配管の加熱装置は、図３に示すように、長手方向にスリット４を有する円筒状の面状ヒータ１が、円筒状の断熱材２の内部に脱着可能に備えられた配管の加熱装置であって、図１、図２に示すように、該円筒状の面状ヒータ１の外側表面に、円周方向に対して弾力性を有する金属板及び／または耐熱性樹脂板３が取付けられてなる配管の加熱装置である。
尚、本発明の配管の加熱装置において、円周方向に対して弾力性を有する金属板及び／または耐熱性樹脂板は、人の手によって加えられる程度の大きさの外力によって、面状ヒータのスリットが容易に開き、前記の外力を取除くとスリットが元の形状に戻るように設定された金属板及び／または耐熱性樹脂板である。
As shown in FIG. 3, the pipe heating apparatus according to the present invention heats a pipe in which a cylindrical
In the pipe heating device of the present invention, the metal plate and / or the heat-resistant resin plate having elasticity in the circumferential direction is not affected by the external force that is large enough to be applied by a human hand. It is a metal plate and / or a heat-resistant resin plate that is set so that the slit can be easily opened and the slit returns to its original shape when the external force is removed.
前記の金属板及び／または耐熱性樹脂板は、通常は、図１に示すように、円筒状の面状ヒータの縁に沿って、あるいは、図２に示すように、円弧形状を形成し円筒状の面状ヒータの円周方向に沿って取付けられる。しかし、前記のような弾力性を有すれば、これらに限定されることはなく、例えば図１と図２を合せたような構成の金属板及び／または耐熱性樹脂板（格子状、網目状）等とすることもできる。尚、図１に示すような面状ヒータにおいて、縁に凹凸がある場合、凹凸の大きさによっては適宜凹凸の形状に合せた形状の金属板及び／または耐熱性樹脂板を用いることが好ましい。また、面状ヒータの縁と金属板及び／または耐熱性樹脂板の距離は、通常は３０ｍｍ以内である。本発明における金属板及び／または耐熱性樹脂板は、前述のような構成なので、面状ヒータの縁の部分の機械的強度を補強する効果のほか、配管への装着、配管からの取外しが容易になる効果がある。 The metal plate and / or heat-resistant resin plate is usually formed along an edge of a cylindrical planar heater as shown in FIG. 1 or in a circular arc shape as shown in FIG. It is attached along the circumferential direction of the planar heater. However, as long as it has elasticity as described above, it is not limited to these. For example, a metal plate and / or a heat-resistant resin plate (lattice-like, mesh-like) configured as shown in FIGS. ) Etc. In addition, in the planar heater as shown in FIG. 1, when the edge is uneven, it is preferable to use a metal plate and / or a heat resistant resin plate having a shape appropriately matched to the uneven shape depending on the size of the unevenness. Further, the distance between the edge of the planar heater and the metal plate and / or the heat-resistant resin plate is usually within 30 mm. Since the metal plate and / or heat-resistant resin plate in the present invention has the above-described configuration, in addition to the effect of reinforcing the mechanical strength of the edge portion of the planar heater, it can be easily attached to the pipe and removed from the pipe. There is an effect to become.
前記の金属板及び／または耐熱性樹脂板の厚さは、通常は０．１〜１．５ｍｍ、好ましくは０．３〜１．０ｍｍである。また、前記の金属板及び／または耐熱性樹脂板の幅については、面状ヒータの円周方向に沿って取付けられる場合の幅（図１におけるａの長さ）は、通常は２〜５０ｍｍ、好ましくは４〜２０ｍｍであり、面状ヒータの長手方向に沿って取付けられる場合の幅（図１におけるｂの長さ）は、通常は面状ヒータの円周の長さの１〜３０％、好ましくは２〜２０％である。本発明においては、通常は金属板または耐熱性樹脂板のどちらか一方が用いられるが、両方を用いることもできる。 The thickness of the metal plate and / or heat-resistant resin plate is usually 0.1 to 1.5 mm, preferably 0.3 to 1.0 mm. Moreover, about the width | variety of the said metal plate and / or a heat resistant resin plate, the width | variety (length of a in FIG. 1) when attaching along the circumferential direction of a planar heater is 2-50 mm normally, Preferably, it is 4 to 20 mm, and the width (the length of b in FIG. 1) when attached along the longitudinal direction of the planar heater is usually 1 to 30% of the circumferential length of the planar heater, Preferably it is 2 to 20%. In the present invention, either a metal plate or a heat-resistant resin plate is usually used, but both can also be used.
本発明に使用される金属板の材質としては、鉄、銅、アルミニウム、合金等を例示することができる。また、耐熱性樹脂板の材質としては、その使用温度に耐える材質で、かつ円弧状等本発明における使用形態の形状に湾曲加工できればよく、ポリエステル、ポリカーボネート、ポリサルホン、ポリエーテルイミド、ポリフェニレンサルファイド、ポリエールエーテルケトン、ポリイミド等を例示することができる。金属板及び／または耐熱性樹脂板を面状ヒータに取付ける方法については特に限定されることはないが、例えば接着剤等により接着することができる。 Examples of the material of the metal plate used in the present invention include iron, copper, aluminum, and an alloy. In addition, the material of the heat-resistant resin plate may be a material that can withstand the use temperature and can be bent into the shape of the use form in the present invention, such as an arc shape, such as polyester, polycarbonate, polysulfone, polyetherimide, polyphenylene sulfide, Examples include ale ether ketone and polyimide. The method for attaching the metal plate and / or the heat-resistant resin plate to the planar heater is not particularly limited, but the metal plate and / or the heat-resistant resin plate can be bonded with, for example, an adhesive.
尚、本発明に使用される面状ヒータは、通常は発熱素子の両面を絶縁樹脂シートで被覆した可撓性の面状ヒータである。発熱素子としては、例えば所望のパターンに成形した金属箔抵抗体、金属線抵抗体、または、グラフトカーボン、カーボン粉末、金属粉末、金属酸化物粉末から選ばれる少なくとも１種をシリコーン樹脂等の耐熱性樹脂に混練させた導電性樹脂を、ガラス繊維、セラミック繊維等の基材に含浸させた抵抗体等を用いることができる。このような発熱素子の厚みは、通常は０．０１〜０．５ｍｍ、好ましくは０．０５〜０．１ｍｍである。厚みが０．０１ｍｍ未満の場合は強度が弱く、０．５ｍｍを超えると可撓性、柔軟性が失われる場合がある。 The planar heater used in the present invention is usually a flexible planar heater in which both sides of a heating element are covered with an insulating resin sheet. As the heating element, for example, a metal foil resistor, a metal wire resistor molded into a desired pattern, or at least one selected from graft carbon, carbon powder, metal powder, and metal oxide powder is heat resistant such as a silicone resin. A resistor or the like obtained by impregnating a base material such as glass fiber or ceramic fiber with a conductive resin kneaded with resin can be used. The thickness of such a heating element is usually 0.01 to 0.5 mm, preferably 0.05 to 0.1 mm. When the thickness is less than 0.01 mm, the strength is weak, and when it exceeds 0.5 mm, flexibility and softness may be lost.
また、面状ヒータの絶縁樹脂シートとしては、所定の厚みで電気絶縁性があれば特に制限されることがなく、例えば、シリコーン樹脂、テフロン（登録商標）樹脂、ポリオレフィン樹脂、ポリエステル樹脂、塩化ビニル樹脂、ポリイミド樹脂等を挙げることができるが、これらの中ではシリコーン樹脂が好ましい。また、絶縁樹脂シートの厚みは、通常は０．５〜１０ｍｍ、好ましくは１〜５ｍｍである。厚みが０．５ｍｍ未満の場合は電気絶縁性が悪化し、厚みが１０ｍｍを超える場合は可撓性が失われる場合がある。 In addition, the insulating resin sheet of the planar heater is not particularly limited as long as it has electrical insulation with a predetermined thickness. For example, silicone resin, Teflon (registered trademark) resin, polyolefin resin, polyester resin, vinyl chloride Resins, polyimide resins and the like can be mentioned, and among these, silicone resins are preferable. The thickness of the insulating resin sheet is usually 0.5 to 10 mm, preferably 1 to 5 mm. When the thickness is less than 0.5 mm, the electrical insulation properties deteriorate, and when the thickness exceeds 10 mm, flexibility may be lost.
本発明の加熱装置における断熱材は、通常は前述の面状ヒータの外径よりも大きな内径を有する円筒状の断熱材であり、図４に示すように、電気配線５と接続する電極６を挿入するための空洞部が適宜設けられる。本発明においては、筒形状を有する１個の成形体からなる断熱材とすることもできるが、図４に示すように長手方向に２分割、あるいは３分割、４分割にして、これらをバンド７及び止め具８等の結合手段で結合させて一体化することもできる。断熱材の構成材料としては、ヒータの加熱温度に耐えられ、断熱性を有するものであれば特に制限されることはなく、例えば、シリコーン樹脂、テフロン（登録商標）樹脂、ポリオレフィン樹脂、ポリエステル樹脂、塩化ビニル樹脂、ポリイミド樹脂等を挙げることができるが、これらの中ではシリコーン樹脂が好ましい。
The heat insulating material in the heating device of the present invention is usually a cylindrical heat insulating material having an inner diameter larger than the outer diameter of the above-mentioned planar heater, and as shown in FIG. A cavity for insertion is appropriately provided. In the present invention, a heat insulating material made of a single molded body having a cylindrical shape can be used. However, as shown in FIG. Further, they can be integrated by connecting means such as a
次に、本発明を実施例により具体的に説明するが、本発明がこれらにより限定されるものではない。 EXAMPLES Next, although an Example demonstrates this invention concretely, this invention is not limited by these.
［実施例１］
（面状ヒータの製作）
シリコーン樹脂とガラスクロスのシート状の複合材（縦９３ｍｍ、横５００ｃｍｍ）の上に、発熱素子として金属抵抗線を蛇行状に配線し、電極端子として銅箔を金属抵抗線の端部に設け、発熱素子側の表面に前記と同様な複合材を重ね合せて発熱素子を挟んだ。これを直径３０ｍｍ円筒状の金属パイプに巻付け、その上からポリエステルテープを巻付けて加熱圧着し、絶縁被覆して長手方向にスリットを有する円筒形の面状ヒータを作製した。
[Example 1]
(Manufacture of planar heaters)
On a sheet-like composite material of silicone resin and glass cloth (length 93 mm, width 500 cmm), a metal resistance wire is laid in a meandering manner as a heating element, and a copper foil is provided at the end of the metal resistance wire as an electrode terminal, A composite material similar to the above was superimposed on the surface of the heating element side to sandwich the heating element. This was wound around a cylindrical metal pipe having a diameter of 30 mm, and a polyester tape was wound thereon, heat-pressed, and a cylindrical planar heater having a slit in the longitudinal direction was produced by insulation coating.
続いて、ステンレス製の枠状金属板（縦８３ｍｍ、横４９０ｍｍ、幅５ｍｍ、厚さ０．５ｍｍ）を、前記の面状ヒータの縁の形状に合うような形態に加工した。この金属板は、外力がないときは外形がスリットを有する円筒形であり、外力を加えるとスリットが開き、外力を取除くと元の形状に戻った。この金属板を前記の面状ヒータの外側表面の縁に沿って接着剤により接着し、図１に示すような形態の面状ヒータ（直径３０ｍｍ、長さ５００ｍｍ）を得た。尚、面状ヒータの縁と金属板の距離は５ｍｍであった。 Subsequently, a stainless steel frame-like metal plate (length: 83 mm, width: 490 mm, width: 5 mm, thickness: 0.5 mm) was processed into a shape matching the shape of the edge of the planar heater. When there was no external force, the metal plate had a cylindrical shape with a slit. When the external force was applied, the slit opened, and when the external force was removed, the metal plate returned to its original shape. This metal plate was bonded with an adhesive along the edge of the outer surface of the planar heater to obtain a planar heater (diameter 30 mm, length 500 mm) as shown in FIG. The distance between the edge of the planar heater and the metal plate was 5 mm.
（配管の加熱装置の製作）
次に、長手方向にスリットを有する円筒状の断熱材（内径３２ｍｍ、長さ５００ｍｍ、厚さ１０ｍｍ）を製作した。この円筒状の断熱材は、図４に示すように、２個の半円筒状の断熱材からなり、これらはバンド及び止め具により結合できるような構成にした。さらに一方の半円筒状の断熱材に空洞部を設け、前記の面状ヒータの電極を挿入して、図３に示すような加熱装置を得た。
(Production of piping heating equipment)
Next, a cylindrical heat insulating material (inner diameter: 32 mm, length: 500 mm, thickness: 10 mm) having a slit in the longitudinal direction was manufactured. As shown in FIG. 4, the cylindrical heat insulating material is composed of two semi-cylindrical heat insulating materials, which are configured to be coupled by a band and a stopper. Further, a hollow portion was provided in one semi-cylindrical heat insulating material, and the electrode of the planar heater was inserted to obtain a heating apparatus as shown in FIG.
（加熱装置の配管への装着）
前記のような加熱装置を外径３０ｍｍの配管に装着した。装着の際、加熱装置のスリットは、人の手によって容易に開き、手をはなすと元の形状に戻り、配管への装着、配管からの取外しが容易であることが確認できた。また、面状ヒータの縁に装着された金属板により、ヒータの縁の機械的強度が向上し、ヒータの角の折れ、円筒の長手方向の折れが防止でき、発熱素子の断線等の虞がなくなったことが確認できた。さらに振動による配管からの脱落も防止できることが確認できた。
(Mounting of heating device to piping)
The heating device as described above was attached to a pipe having an outer diameter of 30 mm. At the time of mounting, the slit of the heating device was easily opened by a human hand and returned to its original shape when the hand was released, and it was confirmed that the mounting to the pipe and the removal from the pipe were easy. In addition, the metal plate attached to the edge of the planar heater improves the mechanical strength of the heater edge, prevents the heater from being bent and the cylinder from being bent in the longitudinal direction, and there is a risk of breakage of the heating element. I confirmed that it was gone. In addition, it was confirmed that the pipe could be prevented from falling off due to vibration.
［実施例２］
実施例１の面状ヒータの製作において、ステンレス製の円弧状金属板（幅１０ｍｍ、厚さ０．５ｍｍ）を３個用いたほかは実施例１と同様にして、図２に示すような形態の面状ヒータ（直径３０ｍｍ、長さ５００ｍｍ）を製作した。次に、実施例１と同様の断熱材を用いて加熱装置を得た。
このような加熱装置を外径３０ｍｍの配管に装着した結果、加熱装置のスリットは、人の手によって容易に開き、手をはなすと元の形状に戻り、配管への装着、配管からの取外しが容易であることが確認できた。また、面状ヒータの縁に装着された金属板により、ヒータの縁の機械的強度が向上し、ヒータの角の折れ、円筒の長手方向の折れが防止でき、発熱素子の断線等の虞がなくなったことが確認できた。さらに振動による配管からの脱落も防止できることが確認できた。
[Example 2]
In the manufacture of the planar heater of Example 1, the configuration as shown in FIG. 2 is the same as Example 1 except that three arcuate metal plates made of stainless steel (width 10 mm, thickness 0.5 mm) are used. The sheet heater (diameter 30 mm, length 500 mm) was manufactured. Next, a heating device was obtained using the same heat insulating material as in Example 1.
As a result of attaching such a heating device to a pipe with an outer diameter of 30 mm, the slit of the heating device can be easily opened by a human hand, and when it is released, it returns to its original shape, and can be attached to the pipe and removed from the pipe. It was confirmed that it was easy. In addition, the metal plate attached to the edge of the planar heater improves the mechanical strength of the heater edge, prevents the heater from being bent and the cylinder from being bent in the longitudinal direction, and there is a risk of breakage of the heating element. I confirmed that it was gone. In addition, it was confirmed that the pipe could be prevented from falling off due to vibration.
［実施例３］
実施例１の面状ヒータの製作において、ポリエーテルイミド製の枠状耐熱性樹脂板（縦８３ｍｍ、横４９０ｍｍ、幅５ｍｍ、厚さ１ｍｍ）を用いたほかは実施例１と同様にして、図１に示すような形態の面状ヒータ（直径３０ｍｍ、長さ５００ｍｍ）を製作した。次に、実施例１と同様の断熱材を用いて加熱装置を得た。
このような加熱装置を外径３０ｍｍの配管に装着した結果、加熱装置のスリットは、人の手によって容易に開き、手をはなすと元の形状に戻り、配管への装着、配管からの取外しが容易であることが確認できた。また、面状ヒータの縁に装着された金属板により、ヒータの縁の機械的強度が向上し、ヒータの角の折れ、円筒の長手方向の折れが防止でき、発熱素子の断線等の虞がなくなったことが確認できた。さらに振動による配管からの脱落も防止できることが確認できた。
[Example 3]
In the manufacture of the planar heater of Example 1, the same figure as in Example 1 was used except that a frame-like heat-resistant resin plate made of polyetherimide (length 83 mm, width 490 mm,
As a result of attaching such a heating device to a pipe with an outer diameter of 30 mm, the slit of the heating device can be easily opened by a human hand, and when it is released, it returns to its original shape, and can be attached to the pipe and removed from the pipe. It was confirmed that it was easy. In addition, the metal plate attached to the edge of the planar heater improves the mechanical strength of the heater edge, prevents the heater from being bent and the cylinder from being bent in the longitudinal direction, and there is a risk of breakage of the heating element. I confirmed that it was gone. In addition, it was confirmed that the pipe could be prevented from falling off due to vibration.
以上の実施例のように、本発明の配管の加熱装置は、面状ヒータが断熱材に脱着可能に備えられた加熱装置の短所である、面状ヒータの折れ曲がり、振動による配管からの脱落を防止することができる。 As in the above embodiments, the heating device for piping according to the present invention is a disadvantage of the heating device in which the planar heater is detachably attached to the heat insulating material. Can be prevented.
１ 面状ヒータ
２ 断熱材
３ 金属板または耐熱性樹脂板
４ スリット
５ 電気配線
６ 電極
７ バンド
８ 止め具
DESCRIPTION OF
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010139465A JP5537279B2 (en) | 2010-06-18 | 2010-06-18 | Piping heating equipment |
| KR1020110052102A KR20110138153A (en) | 2010-06-18 | 2011-05-31 | Pipe heating device |
| TW100119337A TWI458381B (en) | 2010-06-18 | 2011-06-02 | Heating device for pipe |
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| JP2010139465A JP5537279B2 (en) | 2010-06-18 | 2010-06-18 | Piping heating equipment |
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| JP2012004028A true JP2012004028A (en) | 2012-01-05 |
| JP5537279B2 JP5537279B2 (en) | 2014-07-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014135157A (en) * | 2013-01-09 | 2014-07-24 | Japan Pionics Co Ltd | Planar heater |
| CN104976848A (en) * | 2014-04-10 | 2015-10-14 | 日本电产三协株式会社 | Air throttle device and heater |
| JP2017129113A (en) * | 2016-01-19 | 2017-07-27 | 株式会社クボタ | Fluid heating device of engine |
| US10524314B2 (en) | 2016-01-19 | 2019-12-31 | Kubota Corporation | Fluid heating device of engine |
| CN113243141A (en) * | 2019-06-27 | 2021-08-10 | 日本梅克特隆株式会社 | Cylindrical heater |
| JP7486367B2 (en) | 2020-07-20 | 2024-05-17 | 日鉄エンジニアリング株式会社 | Duct inner surface cleaning device and method |
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| JPH0438697U (en) * | 1990-07-27 | 1992-03-31 | ||
| JPH1060958A (en) * | 1996-08-23 | 1998-03-03 | Sekisui Plastics Co Ltd | Heater device and piping with heater |
| JP2002093553A (en) * | 2000-09-11 | 2002-03-29 | Sakaguchi Dennetsu Kk | Heater device |
| JP2010021031A (en) * | 2008-07-11 | 2010-01-28 | Japan Pionics Co Ltd | Planar heater |
-
2010
- 2010-06-18 JP JP2010139465A patent/JP5537279B2/en active Active
-
2011
- 2011-05-31 KR KR1020110052102A patent/KR20110138153A/en not_active Application Discontinuation
- 2011-06-02 TW TW100119337A patent/TWI458381B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0438697U (en) * | 1990-07-27 | 1992-03-31 | ||
| JPH1060958A (en) * | 1996-08-23 | 1998-03-03 | Sekisui Plastics Co Ltd | Heater device and piping with heater |
| JP2002093553A (en) * | 2000-09-11 | 2002-03-29 | Sakaguchi Dennetsu Kk | Heater device |
| JP2010021031A (en) * | 2008-07-11 | 2010-01-28 | Japan Pionics Co Ltd | Planar heater |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014135157A (en) * | 2013-01-09 | 2014-07-24 | Japan Pionics Co Ltd | Planar heater |
| CN104976848A (en) * | 2014-04-10 | 2015-10-14 | 日本电产三协株式会社 | Air throttle device and heater |
| JP2017129113A (en) * | 2016-01-19 | 2017-07-27 | 株式会社クボタ | Fluid heating device of engine |
| US10524314B2 (en) | 2016-01-19 | 2019-12-31 | Kubota Corporation | Fluid heating device of engine |
| CN113243141A (en) * | 2019-06-27 | 2021-08-10 | 日本梅克特隆株式会社 | Cylindrical heater |
| JP7486367B2 (en) | 2020-07-20 | 2024-05-17 | 日鉄エンジニアリング株式会社 | Duct inner surface cleaning device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI458381B (en) | 2014-10-21 |
| JP5537279B2 (en) | 2014-07-02 |
| KR20110138153A (en) | 2011-12-26 |
| TW201208459A (en) | 2012-02-16 |
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