JPH0495379A - Induction heating device - Google Patents
Induction heating deviceInfo
- Publication number
- JPH0495379A JPH0495379A JP20242390A JP20242390A JPH0495379A JP H0495379 A JPH0495379 A JP H0495379A JP 20242390 A JP20242390 A JP 20242390A JP 20242390 A JP20242390 A JP 20242390A JP H0495379 A JPH0495379 A JP H0495379A
- Authority
- JP
- Japan
- Prior art keywords
- heating coil
- gas
- heated
- induction heating
- refractory material
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 230000006698 induction Effects 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011819 refractory material Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003112 inhibitor Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- General Induction Heating (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、誘導加熱装置に間し、さらに詳しくいうと
、被加熱物を酸化防止雰囲気ガス中で誘導加熱する誘導
加熱装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an induction heating device, and more specifically, to an induction heating device for inductively heating an object to be heated in an antioxidant atmosphere gas. .
第２図は、例えば実公昭５８−４３１９１号公報に記載
された従来の誘導加熱装置を示し、図において、（１）
は被加熱物、（２）は加熱コイル、矢印（３）は被加熱
物（１）からの蒸発物を示している。また、（４）は換
気扇、（５）は耐火物、（６）は加熱コイル（２）の収
納箱、（７）は絶縁気体（８）の封入口である。FIG. 2 shows a conventional induction heating device described in, for example, Japanese Utility Model Publication No. 58-43191, and in the figure, (1)
indicates the object to be heated, (2) indicates the heating coil, and arrow (3) indicates the evaporated material from the object to be heated (1). Further, (4) is a ventilation fan, (5) is a refractory, (6) is a storage box for the heating coil (2), and (7) is an inlet for insulating gas (8).
以上の構成により、加熱コイル（２）を収納箱（６）に
収納するとともに、この収納箱（６）に絶縁気体（８）
を強制封入するようにしたもので、これにより収納箱（
６）の内圧が高められ、不要個所への灰燗および蒸発物
（３）の侵入が防止され、さらに、合わせ目（収納箱（
６）と耐火物（５）とのすき間、あるいは収納箱（６）
のすき間）から絶縁気体（８）が噴出することによって
加熱コイル（２）内壁周囲が絶縁気体（８）で膜状に覆
われ、耐火物（５）が保護される。With the above configuration, the heating coil (2) is stored in the storage box (6), and the insulating gas (8) is stored in the storage box (6).
The storage box (
The internal pressure of 6) is increased, preventing ash and evaporated matter (3) from entering unnecessary areas, and furthermore, the seam (storage box)
6) and the refractory (5), or the storage box (6)
As the insulating gas (8) is ejected from the gap), the inner wall of the heating coil (2) is covered with a film of insulating gas (8), and the refractory (5) is protected.
従って、耐火物（５）の劣化や加熱コイル（２）の絶縁
劣化を防止することができる。Therefore, deterioration of the refractory (5) and insulation of the heating coil (2) can be prevented.
以上のような従来の誘導加熱装置では、加熱コイルは収
納箱に絶縁気体を強制封入することで、設置場所の雰囲
気と異なった環境を作り出し、加熱コイルの絶縁耐力の
維持向上を図っているが、被加熱物周囲を蒸発物ではな
く酸化防止雰囲気ガス（例えば水素と窒素の混合ガスあ
るいはＣＯガスと窒素の混合ガス）である場合、加熱コ
イル内側を断熱材で保護した加熱コイルを収納箱に収納
するだけでは、収納箱の設置場所にＨ２，ＣＯガスなど
を漏らさないようにするには不充分であった。In conventional induction heating devices such as those described above, the heating coil is forcibly filled with insulating gas in the storage box to create an environment different from the atmosphere at the installation location and to maintain and improve the dielectric strength of the heating coil. If the object to be heated is surrounded by an oxidation-preventing atmosphere gas (for example, a mixture of hydrogen and nitrogen or a mixture of CO gas and nitrogen) rather than evaporated substances, place the heating coil in a storage box with the inside of the heating coil protected with a heat insulating material. Mere storage was insufficient to prevent H2, CO gas, etc. from leaking into the installation location of the storage box.
この発明は上記の課題を解決するためになされたもので
、被加熱物周囲の酸化防止雰囲気ガスを加熱コイル収納
箱の外に漏らさない誘導加熱装置を得ることを目的とす
る。This invention was made to solve the above-mentioned problems, and an object of the invention is to obtain an induction heating device that does not leak anti-oxidation atmospheric gas around an object to be heated to the outside of a heating coil storage box.
この発明に係る誘導加熱装置は、加熱コイルを、内外周
囲をモールド状耐火物で覆い、その外周面を柔軟性のあ
るコーティング材で被覆した。In the induction heating device according to the present invention, the heating coil is covered with a molded refractory on its inner and outer peripheries, and its outer peripheral surface is covered with a flexible coating material.
この発明においては、柔軟性のあるコーティング材は断
熱材または耐火材の通気性能の低下と割れ目からのガス
漏れを防止する。In this invention, the flexible coating material prevents deterioration of the ventilation performance of the insulation or refractory material and prevents gas leakage through cracks.
第１図はこの発明の一実施例を示し、（９）は酸化防止
雰囲気ガス、（１３）は加熱コイル（２）を埋め込んで
ある耐火または断熱モールド材、（１０）はモールド材
（１３）と収納箱（６）との間の耐熱性パツキン材、（
１１）はモールド材（１３）の外周面を覆う柔軟性コー
ティング材である。（１２）は隣接機器との結合用ジャ
バラである。FIG. 1 shows an embodiment of the present invention, in which (9) is an oxidation-preventing atmospheric gas, (13) is a fireproof or heat-insulating molding material in which a heating coil (2) is embedded, and (10) is a molding material (13). Heat-resistant packing material between the and storage box (6), (
11) is a flexible coating material that covers the outer peripheral surface of the mold material (13). (12) is a bellows for coupling with adjacent equipment.
その他、第２図と同一符号は同一ないし相当部分である
。In addition, the same reference numerals as in FIG. 2 indicate the same or corresponding parts.
従来は被加熱物（１）の表面付着物等が誘導加熱によっ
て、蒸発し、耐火物の割れ目、スキ間等から侵入し、加
熱コイル（２）の絶縁劣化防止を目的としていたが、こ
の実施例では、被加熱物（１）の誘導加熱で酸化皮膜が
発生することを防止する目的で、酸化防止雰囲気ガス（
９）中で加熱する。この場合色々の問題が発生する６例
えば雰囲気ガス（９）として、）１２．ＣＯガス等を混
入させることによって、還元性雰囲気を作り出した場合
、Ｈ２では爆発性、火災等、ＣＯガスでは人間に対する
毒性からの安全性確保が重要である。Conventionally, the purpose was to prevent the insulation of the heating coil (2) from deteriorating due to evaporation of matter adhering to the surface of the heated object (1) through induction heating and entering through cracks or gaps in the refractory. In this example, in order to prevent the formation of an oxide film during induction heating of the object to be heated (1), an antioxidant atmosphere gas (
9) Heat it inside. In this case, various problems occur.6 For example, as the atmospheric gas (9))12. When a reducing atmosphere is created by mixing CO gas or the like, it is important to ensure safety from H2's explosiveness and fire, and CO gas's toxicity to humans.
いずれの場合も収納箱（６）の外に上記ガスを漏洩させ
ることは不可につき、収納箱（６）と加熱コイル（２）
との空隙を絶縁気体（例えばＮ、ガス）（８）で封入す
ることで大力は上記のガス漏れを防止できるが、より安
全性および経年劣化等での耐火物（１３）の割れおよび
収納箱（６）との隙間からのガス漏れ防止として、耐火
物（１３）外表面にコーティング材（１１）の塗布と、
さらには、隙間へのバッキング材（１０）の挿入で、よ
りシール性向上を達成することができる。In either case, it is impossible to leak the above gas outside the storage box (6), so the storage box (6) and heating coil (2)
Although it is possible to prevent the above-mentioned gas leakage by filling the gap with an insulating gas (e.g. N, gas) (8), it is more secure and prevents cracking of the refractory material (13) due to deterioration over time, etc. Coating material (11) is applied to the outer surface of the refractory (13) to prevent gas leakage from the gap between the refractory (13) and the
Furthermore, by inserting the backing material (10) into the gap, it is possible to further improve the sealing performance.
以上のように、この発明によれば、加熱コイルのモール
ド外表面に柔軟性コーティングを施したので、被加熱物
を酸化防止雰囲気ガス中で誘導加熱を行っても、加熱コ
イルの設置場所にガス漏洩を防止できる効果がある。As described above, according to the present invention, since a flexible coating is applied to the outer surface of the mold of the heating coil, even if the object to be heated is induction heated in an oxidation-preventing atmospheric gas, the heating coil is installed at a place where the heating coil is installed. It has the effect of preventing leakage.
第１区はこの発明の一実施例の縦断面図、第２図は従来
の誘導加熱装置の縦断面図である。
（１）・・被加熱物、（２）・・誘導加熱コイル、（６
）・・収納箱、（９）・・酸化防止雰囲気ガス、（１０
）・・パツキン、（１１）・・柔軟性のあるコーティン
グ材、（１３）モールド。
なお、各図中、同一符号は同−又は相当部分を示す。The first section is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a conventional induction heating device. (1)...Object to be heated, (2)...Induction heating coil, (6
)...Storage box, (9)...Antioxidizing atmosphere gas, (10
)...Packkin, (11)...Flexible coating material, (13) Mold. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
イルを収納箱に収納し、被加熱物を酸化防止雰囲気ガス
中で前記加熱コイルにより加熱する誘導加熱装置におい
て、前記モールドの外周面を柔軟性コーティング材で被
覆してなることを特徴とする誘導加熱装置。In an induction heating device in which a heating coil molded with either a refractory material or a heat insulating material is stored in a storage box, and an object to be heated is heated by the heating coil in an antioxidant atmosphere gas, the outer peripheral surface of the mold is made flexible. An induction heating device characterized by being covered with a coating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202423A JPH07107872B2 (en) | 1990-08-01 | 1990-08-01 | Induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202423A JPH07107872B2 (en) | 1990-08-01 | 1990-08-01 | Induction heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0495379A true JPH0495379A (en) | 1992-03-27 |
| JPH07107872B2 JPH07107872B2 (en) | 1995-11-15 |
Family
ID=16457267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2202423A Expired - Lifetime JPH07107872B2 (en) | 1990-08-01 | 1990-08-01 | Induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07107872B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843191U (en) * | 1981-09-17 | 1983-03-23 | パイオニア株式会社 | switching power supply circuit |
| JPS6482473A (en) * | 1987-09-25 | 1989-03-28 | Mitsubishi Electric Corp | Heating coil |
-
1990
- 1990-08-01 JP JP2202423A patent/JPH07107872B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843191U (en) * | 1981-09-17 | 1983-03-23 | パイオニア株式会社 | switching power supply circuit |
| JPS6482473A (en) * | 1987-09-25 | 1989-03-28 | Mitsubishi Electric Corp | Heating coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07107872B2 (en) | 1995-11-15 |
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