WO2003053103A1 - Heater utilizing heat generated by eddy current - Google Patents

Heater utilizing heat generated by eddy current Download PDF

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Publication number
WO2003053103A1
WO2003053103A1 PCT/JP2002/000862 JP0200862W WO03053103A1 WO 2003053103 A1 WO2003053103 A1 WO 2003053103A1 JP 0200862 W JP0200862 W JP 0200862W WO 03053103 A1 WO03053103 A1 WO 03053103A1
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WO
WIPO (PCT)
Prior art keywords
rotary
eddy current
poles
heat generated
heat
Prior art date
Application number
PCT/JP2002/000862
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroyuki Uemura
Original Assignee
Nippon Magnetics Inc.,
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 Nippon Magnetics Inc., filed Critical Nippon Magnetics Inc.,
Priority to JP2003553874A priority Critical patent/JPWO2003053103A1/en
Priority to AU2002230132A priority patent/AU2002230132A1/en
Publication of WO2003053103A1 publication Critical patent/WO2003053103A1/en

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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/102—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces the metal pieces being rotated while induction heated

Definitions

  • the present invention utilizes the heat generated by the eddy current to generate heat by generating an eddy current in a rotary with a permanent magnet by a permanent magnet, and to heat the melting aluminum powder, mineral sand, water-containing powder and powder. It relates to a heating device. Background art
  • Rotaries that rotate in a certain direction are used to heat and dry raw materials such as powder containing water and powder.
  • the device is a horizontally installed mouth-to-door, and the inside of the rotary is heated by a burner or the like, and the material to be dried is put in from one side, and the dried material is discharged from the other side. I have.
  • roastery requires a device to heat a burner, a blower to blow hot air, and a dust collector to keep cyclones and fines from being released into the atmosphere. Was complicated. In addition, they indirectly heat the mouth, so there was a heat loss.
  • the eddy current is generated by the permanent magnet to generate heat in the rotary itself, thereby improving the thermal efficiency.
  • An object of the present invention is to provide a heating device using heat generated by electric current. Disclosure of the invention
  • the heating device utilizing the heat generated by the eddy current according to the present invention is characterized in that a plurality of permanent magnets are arranged on the outer periphery of a rotor where an eddy current can be generated so that N poles and S poles are alternately located. I do. Further, a rotatable rotating body in which a plurality of permanent magnets are arranged so that N poles and S poles are alternately located may be provided in proximity to a rotary capable of generating an eddy current.
  • FIG. 1 shows an embodiment of the heating device of the present invention
  • (a) is a schematic diagram showing one embodiment used for a dryer
  • (b) is a schematic diagram showing an embodiment in which a permanent magnet is provided on a rotating body. is there.
  • a permanent magnet having a strong magnetic force is arranged around the mouth.
  • the magnetic poles of N and S cross alternately in the row, and the electromagnetic induction phenomenon generates a current inside the rotary, and as a result, the rotary generates heat,
  • the heated object supplied into the rotary from one supply port is heated while moving and is discharged from the other discharge port.
  • the rotary is made of metal such as iron, stainless steel, and aluminum that can generate eddy current and is rotatably provided.
  • the rotary is inclined so that the object to be heated can move in one direction, or a screw blade is provided on the inner surface. .
  • the rotary strong magnets are alternately arranged with N and S poles and fixed.
  • the permanent magnet a neodymium-based or samarium-based permanent magnet having a surface of 300 gauss or more is used.
  • the temperature can be adjusted by changing the thickness of the rotary, the number of rotations, or the distance between the magnet and the mouth. The strength and number of poles of the magnet are determined according to the required heat generation and application. You.
  • the rotary is rotated at about 100 to 600 revolutions per minute. As a result, it can be confirmed that the rotary gradually generates heat.
  • FIG. 1 (a) is a schematic diagram showing an embodiment in which the heating device of the present invention is used in a dryer.
  • Thickness 5 mm Neodymium magnets 2 with a surface of 480 Gauss are arranged at equal intervals around the outer periphery of a metal rotary 1 with an outer diameter of 140 mm so that the N pole and the S pole alternate. Fixed.
  • FIG. 1B is a schematic view showing an embodiment in which a permanent magnet is provided on a rotating body.
  • Rotary 1 is similar to Example 1.
  • This embodiment is an example in which neodymium magnets 2 having a surface of 480 Gauss are arranged at equal intervals around the outer periphery of a rotating body 3 made of iron so that N poles and S poles are alternately arranged.
  • the rotating roller 1 By rotating the rotator 3, the rotating roller 1 is heated and the object to be heated can be heated.
  • the magnet is arranged on the rotating body 3, so that the manufacture is easier than the magnet is arranged around the rotary 1.
  • Temperature can be easily adjusted by changing the thickness of the rotary, the number of rotations, or the distance between the magnet and the mouthpiece.
  • It can be used as a heating device to heat aluminum powder for melting, mineral sand, powder containing water, powder, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Drying Of Solid Materials (AREA)
  • General Induction Heating (AREA)

Abstract

A heater utilizing heat generated from an eddy current and having a low heat loss in which maintenance is facilitated as compared with a conventional one through a simple structure by generating heat from a rotary itself thereby enhancing thermal efficiency. The heater comprises a plurality of permanent magnets arranged on the outer circumference of the rotary generating an eddy current while alternating N poles and S poles.

Description

明 細 書  Specification
渦電流の発熱を利用した加熱装置 技術分野 Heating device using heat generated by eddy current
本発明は、 本発明はロータリーに永久磁石により渦電流を発生させて発 熱させ、 溶解用アルミ粉、 錶物砂、 水分を含んだ粉 ·粉体などを加熱する 渦電流の発熱を利用した加熱装置に関する。 背景技術  The present invention utilizes the heat generated by the eddy current to generate heat by generating an eddy current in a rotary with a permanent magnet by a permanent magnet, and to heat the melting aluminum powder, mineral sand, water-containing powder and powder. It relates to a heating device. Background art
水分を含んだ粉 ·粉体などの原料を加熱して乾燥させる目的として一定 方向で回転するロータリーが使われる。 装置は、 横向きに据え付けられた 口—夕リーであり、 バーナー等でロータリ一内を昇温させ、 乾燥させたい 原料を一方から投入すれば、 他方から乾燥した原料が排出される構造とな つている。  Rotaries that rotate in a certain direction are used to heat and dry raw materials such as powder containing water and powder. The device is a horizontally installed mouth-to-door, and the inside of the rotary is heated by a burner or the like, and the material to be dried is put in from one side, and the dried material is discharged from the other side. I have.
従来のロー夕リーでは、 バーナー等の加熱するための装置や、 熱風を送 り込む送風装置、 さらに、 サイクロン、 微粉を大気中に出さないようにす るための集塵装置などが必要で構造が複雑なものであった。 また、 これら は、 口一タリ一を間接的に加熱するため、 熱の損失があった。  Conventional roastery requires a device to heat a burner, a blower to blow hot air, and a dust collector to keep cyclones and fines from being released into the atmosphere. Was complicated. In addition, they indirectly heat the mouth, so there was a heat loss.
そこで、 本発明では、 永久磁石により渦電流を発生させてロータリ一そ のものを発熱させ、 熱効率を向上させることにより、 シンプルな構造で従 来よりもメンテナンスがし易く、 熱の損失の少ない渦電流の発熱を利用し た加熱装置を提供するものである。 発明の開示  Therefore, in the present invention, the eddy current is generated by the permanent magnet to generate heat in the rotary itself, thereby improving the thermal efficiency. An object of the present invention is to provide a heating device using heat generated by electric current. Disclosure of the invention
本発明の渦電流の発熱を利用した加熱装置は、 渦電流が発生可能なロー 夕リ一の外周に複数の永久磁石を N極と S極が交互に位置するように配置 したことを特徴とする。 また、 渦電流が発生可能なロータリーに近接して、 複数の永久磁石を N極と S極が交互に位置するように配置した回転可能な 回転体を設けて構成してもよい。 図面の簡単な説明 The heating device utilizing the heat generated by the eddy current according to the present invention is characterized in that a plurality of permanent magnets are arranged on the outer periphery of a rotor where an eddy current can be generated so that N poles and S poles are alternately located. I do. Further, a rotatable rotating body in which a plurality of permanent magnets are arranged so that N poles and S poles are alternately located may be provided in proximity to a rotary capable of generating an eddy current. BRIEF DESCRIPTION OF THE FIGURES
図 1は 本発明の加熱装置の実施例を示し、 （a ) は乾燥機に使用した一 実施例を示す概略図、 （b ) は永久磁石を回転体に設けた実施例を示す概略 図である。 発明を実施するための最良の形態  FIG. 1 shows an embodiment of the heating device of the present invention, (a) is a schematic diagram showing one embodiment used for a dryer, and (b) is a schematic diagram showing an embodiment in which a permanent magnet is provided on a rotating body. is there. BEST MODE FOR CARRYING OUT THE INVENTION
本発明は、 口一夕リーの周りに、 強力な磁力の永久磁石を配置した。 口 一夕リーを回転することにより、 ロー夕リーには、 N、 Sの磁極が交互に 横切ることになり、 電磁誘導現象により、 ロータリー内部に淌電流が発生 し、 その結果ロータリーは発熱し、 一方の供給口からロータリー内に供給 された被加熱物が移動しながら加熱されて他方の排出口から排出される。 ロータリーは、 鉄、 ステンレス、 アルミなど渦電流発生可能な金属製で 回転可能に設け、 内部に供給された被加熱物が一方向に移動できるように、 傾斜させたり、 あるいは内面にスクリュー羽根を設ける。  In the present invention, a permanent magnet having a strong magnetic force is arranged around the mouth. By rotating the mouth, the magnetic poles of N and S cross alternately in the row, and the electromagnetic induction phenomenon generates a current inside the rotary, and as a result, the rotary generates heat, The heated object supplied into the rotary from one supply port is heated while moving and is discharged from the other discharge port. The rotary is made of metal such as iron, stainless steel, and aluminum that can generate eddy current and is rotatably provided.The rotary is inclined so that the object to be heated can move in one direction, or a screw blade is provided on the inner surface. .
ロータリーの周りに、 強力な磁石を N極、 S極を交互に配置、 固定する。 永久磁石としては、 ネオジゥム系、 サマリウム系などの表面 3 0 0 0ガウ ス以上のものを使用する。 また、 温度調整は、 ロータリーの厚み、 回転数、 または磁石と口一夕リーの距離を変えることによって行うことができ、 必 要発熱量や用途にあわせて、 磁石の強さや極数は決定される。 ロータリー は、 毎分 1 0 0〜6 0 0回転程度で回す。 その結果、 ロータリーが徐々に 発熱することを確認することができる。  Around the rotary, strong magnets are alternately arranged with N and S poles and fixed. As the permanent magnet, a neodymium-based or samarium-based permanent magnet having a surface of 300 gauss or more is used. The temperature can be adjusted by changing the thickness of the rotary, the number of rotations, or the distance between the magnet and the mouth.The strength and number of poles of the magnet are determined according to the required heat generation and application. You. The rotary is rotated at about 100 to 600 revolutions per minute. As a result, it can be confirmed that the rotary gradually generates heat.
実施例 1 Example 1
図 1 ( a ) は本発明の加熱装置を乾燥機に使用した一実施例を示す概略 図である。  FIG. 1 (a) is a schematic diagram showing an embodiment in which the heating device of the present invention is used in a dryer.
厚さ 5 mm：外径 1 4 0 mmの金属製のロータリー 1の外周に、 表面 4 8 0 0ガウスのネオジゥム磁石 2を、 N極と S極が交互になるように等間 隔に配置し固定した。  Thickness 5 mm: Neodymium magnets 2 with a surface of 480 Gauss are arranged at equal intervals around the outer periphery of a metal rotary 1 with an outer diameter of 140 mm so that the N pole and the S pole alternate. Fixed.
回転数を毎分 1 8 0回転させるとロータリーの表面温度は 1 1 0 °Cとな り、 被加熱物として錶物砂をロータリー内に供給すると、 排出口から充分 に乾燥された铸物砂を排出させることができた。 When the number of rotations is rotated 180 minutes per minute, the surface temperature of the rotary becomes 110 ° C. When dry sand was supplied into the rotary as an object to be heated, sufficiently dried dry sand could be discharged from the outlet.
実施例 2 Example 2
図 1 ( b ) は永久磁石を回転体に設けた実施例を示す概略図である。 ロータリー 1は実施例 1と同様である。 本実施例では鉄製の回転体 3の 外周に、 表面 4 8 0 0ガウスのネオジゥム磁石 2を、 N極と S極が交互に なるように等間隔に配置した例である。  FIG. 1B is a schematic view showing an embodiment in which a permanent magnet is provided on a rotating body. Rotary 1 is similar to Example 1. This embodiment is an example in which neodymium magnets 2 having a surface of 480 Gauss are arranged at equal intervals around the outer periphery of a rotating body 3 made of iron so that N poles and S poles are alternately arranged.
回転体 3を回転させることにより回転するロー夕リー 1が加熱されて被 加熱物を加熱することができる。 本実施例では、 回転体 3に磁石を配置す るので、 ロータリー 1の回りに磁石を配置するのに較べて製作がし易くな る。  By rotating the rotator 3, the rotating roller 1 is heated and the object to be heated can be heated. In the present embodiment, the magnet is arranged on the rotating body 3, so that the manufacture is easier than the magnet is arranged around the rotary 1.
本発明の効果は次のとおりである。  The effects of the present invention are as follows.
( 1 ) ロータリーに永久磁石を取り付ける構造なので、 従来のロータリー に較べて、 構造がシンプルであり、 故障しにくく、 メンテナンスがし易い。 ( 2 ) 永久磁石により発生する渦電流の発熱により、 ロータリー自体が発 熱するので、 加熱効率がよい。  (1) Since a permanent magnet is attached to the rotary, the structure is simpler, less likely to break down, and easier to maintain than the conventional rotary. (2) Heating efficiency is high because the rotary itself generates heat due to the eddy current generated by the permanent magnet.
( 3 ) 電力は、 口一夕リーを回転させるのに使用されるのみであり、 少電 力で済む。  (3) Electric power is only used to rotate the mouth and requires little power.
( 4 ) ロータリーの厚み、 回転数あるいは磁石と口一タリーの距離を変え ることにより、 簡単に温度調整ができる。  (4) Temperature can be easily adjusted by changing the thickness of the rotary, the number of rotations, or the distance between the magnet and the mouthpiece.
産業上の利用可能性 Industrial applicability
溶解用アルミ粉、 錶物砂、 水分を含んだ粉 ·粉体などを加熱する加熱装 置に利用できる。  It can be used as a heating device to heat aluminum powder for melting, mineral sand, powder containing water, powder, etc.

Claims

請 求 の 範 囲 The scope of the claims
1 . 渦電流が発生可能なロータリーの外周に複数の永久磁石を N極と S極 が交互に位置するように配置したことを特徴とする渦電流の発熱を利用し た加熱装置。 1. A heating device that utilizes the heat generated by eddy currents, characterized by arranging a plurality of permanent magnets on the outer periphery of a rotary that can generate eddy currents so that N and S poles are alternately located.
2 . 渦電流が発生可能なロータリーに近接して、 複数の永久磁石を N極と S極が交互に位置するように配置した回転可能な回転体を設けたことを特 徴とする渦電流の発熱を利用した加熱装置。  2. The eddy current is characterized by providing a rotatable rotating body in which a plurality of permanent magnets are arranged so that N poles and S poles are alternately located in close proximity to a rotary that can generate eddy currents. Heating device using heat generation.
PCT/JP2002/000862 2001-12-19 2002-02-01 Heater utilizing heat generated by eddy current WO2003053103A1 (en)

Priority Applications (2)

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JP2003553874A JPWO2003053103A1 (en) 2001-12-19 2002-02-01 Heating device using heat generated by eddy current
AU2002230132A AU2002230132A1 (en) 2001-12-19 2002-02-01 Heater utilizing heat generated by eddy current

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Application Number Priority Date Filing Date Title
JP2001386652 2001-12-19
JP2001-386652 2001-12-19

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007066552A (en) * 2005-08-29 2007-03-15 Denso Corp Pressure control device and fuel cell system equipped with pressure control device
WO2012050799A1 (en) * 2010-10-11 2012-04-19 The Timken Company Hole heating and spot heating via rotational or reciprocating magnetic heating
US20120205364A1 (en) * 2009-08-21 2012-08-16 Hollming Oy Method for heating a workpiece and a corresponding tool
JP2012164621A (en) * 2011-02-07 2012-08-30 Tsugumitsu Matsui Hot air generation device using permanent magnet
US8389911B2 (en) 2007-10-09 2013-03-05 Tsugumitsu Matsui Electromagnetic induction type heating device, hot air generating device and electrical power generating device
WO2015013844A1 (en) * 2013-07-29 2015-02-05 Qin Wei Device capable of realizing gradient heating of solid metal material
US8993942B2 (en) 2010-10-11 2015-03-31 The Timken Company Apparatus for induction hardening
US9169529B2 (en) 2008-04-11 2015-10-27 The Timken Company Inductive heating for hardening of gear teeth and components alike
JP2021040411A (en) * 2019-09-03 2021-03-11 住友電気工業株式会社 Heat generator and energy storage system
WO2024102095A1 (en) * 2022-11-10 2024-05-16 Kibar Ismail Heat generation system using magnet technique

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Publication number Priority date Publication date Assignee Title
JPS6019185U (en) * 1983-07-18 1985-02-08 三菱電機株式会社 pipe heating device
JPH05121157A (en) * 1991-10-30 1993-05-18 Kao Corp Heating roller device
WO1997045686A1 (en) * 1996-05-29 1997-12-04 Railfix N.V. Continuous dryer with permanent magnets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019185U (en) * 1983-07-18 1985-02-08 三菱電機株式会社 pipe heating device
JPH05121157A (en) * 1991-10-30 1993-05-18 Kao Corp Heating roller device
WO1997045686A1 (en) * 1996-05-29 1997-12-04 Railfix N.V. Continuous dryer with permanent magnets

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007066552A (en) * 2005-08-29 2007-03-15 Denso Corp Pressure control device and fuel cell system equipped with pressure control device
US8389911B2 (en) 2007-10-09 2013-03-05 Tsugumitsu Matsui Electromagnetic induction type heating device, hot air generating device and electrical power generating device
US9169529B2 (en) 2008-04-11 2015-10-27 The Timken Company Inductive heating for hardening of gear teeth and components alike
US20120205364A1 (en) * 2009-08-21 2012-08-16 Hollming Oy Method for heating a workpiece and a corresponding tool
WO2012050799A1 (en) * 2010-10-11 2012-04-19 The Timken Company Hole heating and spot heating via rotational or reciprocating magnetic heating
JP2013543235A (en) * 2010-10-11 2013-11-28 ザ・ティムケン・カンパニー Hole and spot heating via rotary or reciprocating magnetic heating
US9920392B2 (en) 2010-10-11 2018-03-20 The Timken Company Apparatus for induction hardening
US8993942B2 (en) 2010-10-11 2015-03-31 The Timken Company Apparatus for induction hardening
JP2012164621A (en) * 2011-02-07 2012-08-30 Tsugumitsu Matsui Hot air generation device using permanent magnet
WO2015013844A1 (en) * 2013-07-29 2015-02-05 Qin Wei Device capable of realizing gradient heating of solid metal material
JP2021040411A (en) * 2019-09-03 2021-03-11 住友電気工業株式会社 Heat generator and energy storage system
JP7258286B2 (en) 2019-09-03 2023-04-17 住友電気工業株式会社 Heat generator and energy storage system
WO2024102095A1 (en) * 2022-11-10 2024-05-16 Kibar Ismail Heat generation system using magnet technique

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