JPH0425839Y2 - - Google Patents
Info
- Publication number
- JPH0425839Y2 JPH0425839Y2 JP1985063021U JP6302185U JPH0425839Y2 JP H0425839 Y2 JPH0425839 Y2 JP H0425839Y2 JP 1985063021 U JP1985063021 U JP 1985063021U JP 6302185 U JP6302185 U JP 6302185U JP H0425839 Y2 JPH0425839 Y2 JP H0425839Y2
- Authority
- JP
- Japan
- Prior art keywords
- rectangular
- heating coil
- induction heating
- sheet
- coil
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000000137 annealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Landscapes
- Surface Heating Bodies (AREA)
- General Induction Heating (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は長方形シート状高周波誘導加熱コイル
に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rectangular sheet-like high frequency induction heating coil.
例えば、ボイラー用鋼管などは、溶接終了後応
力除去のために焼鈍を行うものが多く、焼鈍作業
は、従来、プロパン，エチレン又はその他の可燃
ガスによる加熱，ニクロム線による抵抗加熱，高
周波誘導加熱などによつている。
For example, steel pipes for boilers are often annealed to relieve stress after welding, and conventional annealing processes include heating with propane, ethylene or other flammable gas, resistance heating with nichrome wire, and high-frequency induction heating. It is based on
しかしながら、可燃ガスによる加熱は温度制御
が容易でなく、電力による抵抗線加熱では、温度
制御は精度よく行うことができるが、抵抗線によ
る間接加熱であるから、効率が悪く、ニクロム線
などを加熱物へ装着する作業は煩雑である。 However, temperature control is not easy when heating with combustible gas, and while resistance wire heating using electricity allows temperature control to be performed accurately, it is indirect heating using resistance wire, which is inefficient and does not heat nichrome wire, etc. The work of attaching it to an object is complicated.
一方、高周波誘導加熱は、温度制御が容易に行
なわれ、直接に被加熱物が内部から発熱するので
効率が非常に良いのであるが、例えば第３図斜視
図に示すように、突合せ溶接を適用した長尺鋼管
０１に耐熱絶縁性套管０３を外挿し、この上に誘
導加熱コイル０２を巻かなければならず、例えば
50p×12tの低合金ボイラー用鋼管の焼鈍に必要な
コイル巻数は使用する高周波の周波数及び出力に
よつて若干異なるが、約30回となるから、長尺鋼
管に加熱コイルを巻回するための作業が大変で実
用的でない。 On the other hand, high-frequency induction heating is very efficient because the temperature can be easily controlled and heat is generated directly from inside the heated object, but for example, as shown in the perspective view of Figure 3, butt welding is A heat-resistant insulating sleeve 03 must be extrapolated onto the long steel pipe 01, and an induction heating coil 02 must be wound on top of this, for example.
The number of coil turns required for annealing a 50p x 12t low-alloy boiler steel tube varies slightly depending on the frequency and output of the high frequency used, but it is approximately 30 turns, so the number of coil turns required for annealing a 50p x 12t low-alloy boiler steel tube is approximately 30. The work is difficult and impractical.
本考案はこのような事情に鑑みて提案されたも
ので、付設作業が簡単で運搬容易かつ保管に大き
なスペースを要せず、数十回のコイルの巻回と同
様の効果を奏する経済的な長方形シート状高周波
誘導加熱コイルを提供することを目的とする。
This invention was proposed in view of these circumstances, and is an economical method that is easy to install, easy to transport, does not require a large space for storage, and has the same effect as winding a coil several dozen times. The object of the present invention is to provide a rectangular sheet-shaped high-frequency induction heating coil.
そのために本考案は、長方形可撓性耐熱絶縁シ
ート上に可撓性電線を長方形うずまき状に布設し
たことを特徴とする。
To this end, the present invention is characterized in that flexible electric wires are laid in a rectangular spiral shape on a rectangular flexible heat-resistant insulating sheet.
このような構成により、付設作業が簡単で、数
十回のコイルの巻回と同様の効果を奏する経済的
なシート状高周波誘導加熱コイルを得ることがで
きる。
With this configuration, it is possible to obtain an economical sheet-like high-frequency induction heating coil that is easy to install and has the same effect as winding a coil several dozen times.
本考案を長尺鋼管の焼鈍に適用した一実施例を
図面について説明すると、第１図はその斜視図、
第２図は第１図の加熱コイルの展開斜視図であ
る。
An embodiment in which the present invention is applied to annealing long steel pipes will be explained with reference to the drawings. Fig. 1 is a perspective view thereof;
FIG. 2 is an exploded perspective view of the heating coil of FIG. 1.
上図において、１は長尺鋼管、２は渦巻状に巻
かれた可撓性加熱コイル、３は例えばガラス繊
維，石綿，セラミツク製等の可撓性耐熱絶縁シー
トで、加熱コイル２は適宜間隔で長方形うずまき
状にこの上に沿つて布設される。４，５は加熱コ
イル２のそれぞれ外部引出線である。 In the above figure, 1 is a long steel pipe, 2 is a spirally wound flexible heating coil, and 3 is a flexible heat-resistant insulating sheet made of glass fiber, asbestos, ceramic, etc., and the heating coils 2 are spaced at appropriate intervals. A rectangular spiral is laid along this top. 4 and 5 are external lead wires of the heating coil 2, respectively.
このように構成された本考案の誘導加熱コイル
シートは、第１図に示すように、長尺鋼管１の焼
鈍を要する部分に耐熱絶縁シート３を下にして円
筒状に湾曲して巻付けられたのち、外部引出線
４，５を経て高周波電源６により通電される。 As shown in FIG. 1, the induction heating coil sheet of the present invention constructed in this manner is wound around a portion of a long steel pipe 1 that requires annealing in a curved cylindrical shape with the heat-resistant insulating sheet 3 facing down. Thereafter, it is energized by the high frequency power source 6 via the external lead wires 4 and 5.
そうすると、長尺鋼管に数十回巻回されたらせ
ん状加熱コイルと同様の高周波誘導加熱を行うこ
とができる。 In this way, it is possible to perform high-frequency induction heating similar to that of a spiral heating coil wound several tens of times around a long steel pipe.
このような構造によれば、極めて簡単な取付作
業により長尺鋼管に付設することができ、またそ
の保管もほとんどスペースを要しないので、非常
に便利である。 According to such a structure, it can be attached to a long steel pipe with extremely simple installation work, and storage thereof requires almost no space, so it is very convenient.
要するに本考案によれば、長方形可撓性耐熱絶
縁シート上に可撓性電線を長方形うずまき状に布
設したことにより、付設作業が簡単で運搬容易か
つ保管に大きなスペースを要せず、数十回のコイ
ルの巻回と同様の効果を奏する経済的な長方形シ
ート状高周波誘導加熱コイルを得るから、本考案
は産業上極めて有益なものである。
In short, according to the present invention, by laying flexible electric wires in a rectangular spiral shape on a rectangular flexible heat-resistant insulating sheet, the installation work is simple, easy to transport, does not require a large space for storage, and can be used several dozen times. The present invention is industrially extremely useful because it provides an economical rectangular sheet-like high-frequency induction heating coil that exhibits the same effect as the winding of a coil.
第１図は本考案を長尺鋼管の加熱に適用した一
実施例を示す斜視図、第２図は第１図の加熱コイ
ルの展開斜視図である。第３図は公知の長尺鋼管
の高周波誘導加熱の要領を示す斜視図である。
１……長尺鋼管、２……加熱コイル、３……可
撓性耐熱絶縁シート、４，５……外部引出線、６
……高周波電源。
FIG. 1 is a perspective view showing an embodiment in which the present invention is applied to heating a long steel pipe, and FIG. 2 is an exploded perspective view of the heating coil shown in FIG. 1. FIG. 3 is a perspective view showing a known procedure for high-frequency induction heating of a long steel pipe. 1... Long steel pipe, 2... Heating coil, 3... Flexible heat-resistant insulation sheet, 4, 5... External leader wire, 6
...High frequency power supply.
Claims (1)
長方形うずまき状に布設したことを特徴とする長
方形シート状高周波誘導加熱コイル。 A rectangular sheet-shaped high-frequency induction heating coil characterized by having flexible electric wires laid in a rectangular spiral shape on a rectangular flexible heat-resistant insulating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985063021U JPH0425839Y2 (en) | 1985-04-26 | 1985-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985063021U JPH0425839Y2 (en) | 1985-04-26 | 1985-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61179693U JPS61179693U (en) | 1986-11-10 |
| JPH0425839Y2 true JPH0425839Y2 (en) | 1992-06-22 |
Family
ID=30592780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985063021U Expired JPH0425839Y2 (en) | 1985-04-26 | 1985-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425839Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117912A (en) * | 1975-04-09 | 1976-10-16 | Hitachi Ltd | Lining for induction heating coil |
-
1985
- 1985-04-26 JP JP1985063021U patent/JPH0425839Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51117912A (en) * | 1975-04-09 | 1976-10-16 | Hitachi Ltd | Lining for induction heating coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61179693U (en) | 1986-11-10 |
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