EP0873045A1 - Dispositif de chauffage par induction electromagnetique et son fonctionnement - Google Patents

Dispositif de chauffage par induction electromagnetique et son fonctionnement Download PDF

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Publication number
EP0873045A1
EP0873045A1 EP96925966A EP96925966A EP0873045A1 EP 0873045 A1 EP0873045 A1 EP 0873045A1 EP 96925966 A EP96925966 A EP 96925966A EP 96925966 A EP96925966 A EP 96925966A EP 0873045 A1 EP0873045 A1 EP 0873045A1
Authority
EP
European Patent Office
Prior art keywords
pipe
silicon nitride
electromagnetic induction
heating element
fluid
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.)
Withdrawn
Application number
EP96925966A
Other languages
German (de)
English (en)
Other versions
EP0873045A4 (fr
Inventor
Yasuzo Kabushiki Kaisha Seta Giken KAWAMURA
Yoshitaka Kabushiki Kaisha Seta Giken UCHIHORI
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.)
Omron Corp
Seta Giken KK
Original Assignee
Omron Corp
Seta Giken KK
Omron Tateisi Electronics Co
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 Omron Corp, Seta Giken KK, Omron Tateisi Electronics Co filed Critical Omron Corp
Publication of EP0873045A1 publication Critical patent/EP0873045A1/fr
Publication of EP0873045A4 publication Critical patent/EP0873045A4/fr
Withdrawn legal-status Critical Current

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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
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • 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

Definitions

  • the electromagnetic induction heater proposed by Japanese Laid-open Patent Publication No. Hei 3(1991)-98286 and others is so small in size as to cause a localized heating, and as such can allow a partial thermal stress to be easily generated in a pipe accommodating the heating element therein.
  • the pipe accommodating the heating element therein is required to be formed of a non-magnetic material, for the reason of which a ceramic pipe is used for it, to allow for heat resistance and chemical resistance.
  • the ceramic pipe is liable to crack in comparison with a metal pipe and thus is disadvantageously subject to limitations on operation conditions for high temperature heating and instantaneous heating.
  • silicon nitride Si 3 N 4
  • metal pipe and the like it is hard for silicon nitride to be joined to a metal pipe and the like by means of heat fusion. Further, it is difficult for silicon nitride to be formed into a desired shape. So, if flange portions are integrally formed with the silicon nitride pipe at the opposite ends or if a supporting portion for supporting the heating element is integrally formed in the silicon nitride pipe, that entails high costs.
  • the expandable portion disposed on at least one of the metal pipes can allow thermal expansion of the silicon nitride pipe to adequately escape in the axial direction, to prevent breakage of the silicon nitride pipe due to the thermal expansion.
  • the body 6a is so manufactured as to have a required inner diameter and a required wall thickness.
  • the flanges 6b, 6c at both ends of the body are formed by expanding the periphery of the body at the ends to a necessary and minimum extent, to form thereon working surfaces 6d, 6e to packing 4, 5 and catching portions 6f, 6g to the flange members 2, 3.
  • the flange members 2, 3 With holding the flanges 6b, 6c of the silicon nitride pipe 6, the flange members 2, 3 are fastened to flanges 103, 104 at the ends of the metal pipe lines 101, 102 via fastening means such as bolts 9 and nuts 10. The working surfaces 6d, 6e of the flanges 6b, 6c are then brought into intimate contact with related working surfaces of the flanges 103, 104 through the packing 4, 5, to accomplish both the seal and the joint. It is difficult for silicon nitride (Si 3 N 4 )to be joined to the metal pipe or equivalent by means of heat fusion.
  • the flange members 2, 3 engageable with the ends of the silicon nitride pipe can facilitate the connection between the metal pipes and the silicon nitride pipe.
  • the heating element 8 is accommodated in the silicon nitride pipe 6, around which the coil 7 is wound at a position opposite to the heating element 8.
  • the coil 7 used is made of lowest possible copper loss and is formed by a twined litz wire or a copper tube of round, half-round or oval.
  • the heating element 8 has permeability with a degree that permits a supply of power without difficulty; capability of facilitating the heat exchange from and to the fluid 14; and corrosion resistance to the fluid 14. Martensitic stainless steels, such as SUS 447J1, are used as a material of the heating element. Further, the detailed structure of the heating element 8 is described with reference to FIG. 2.
  • FIG. 2(a) is a top view showing the structure of the heating element 8 and
  • FIG. 2(b) is a perspective view showing the structure of the heating element 8.
  • the expandable portion may be arranged at least somewhere on an extension of the axis of the silicon nitride pipe to allow the thermal expansion of the silicon nitride pipe to escape in the axial direction properly.
  • the expandable portion even if arranged at a position about 1 meter away from the silicon nitride pipe, can prevent breakage of the silicon nitride pipe caused by the thermal expansion.
  • the expandable portion 40 which is arranged only in the metal pipe 102 at the discharge side of the gas in this embodiment, may be arranged in both of the metal pipe 101 at the inflow side of the gas and the metal pipe 102 at the discharge side of the gas, if desirable. Alternatively, the expandable portion 40 may be arranged only in the metal pipe 101 at the inflow side of the gas.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
EP96925966A 1995-08-03 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement Withdrawn EP0873045A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP219745/95 1995-08-03
JP21974595 1995-08-03
PCT/JP1996/002166 WO1997006652A1 (fr) 1995-08-03 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement

Publications (2)

Publication Number Publication Date
EP0873045A1 true EP0873045A1 (fr) 1998-10-21
EP0873045A4 EP0873045A4 (fr) 1998-12-30

Family

ID=16740335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96925966A Withdrawn EP0873045A4 (fr) 1995-08-03 1996-07-31 Dispositif de chauffage par induction electromagnetique et son fonctionnement

Country Status (6)

Country Link
EP (1) EP0873045A4 (fr)
JP (1) JP3628705B2 (fr)
KR (1) KR19990036094A (fr)
CN (1) CN1192318A (fr)
AU (1) AU6629696A (fr)
WO (1) WO1997006652A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2171551C1 (ru) * 2000-12-15 2001-07-27 ООО "КД-Электро" Установка индукционного нагрева станины электрической машины и индуктор установки индукционного нагрева станины электрической машины
AU2010201462A1 (en) * 2009-11-10 2011-05-26 Kukel International Group Limited Magnetic hygienical water tap

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3873802B2 (ja) * 2001-06-12 2007-01-31 株式会社村田製作所 弾性表面波フィルタ
US6781100B2 (en) * 2001-06-26 2004-08-24 Husky Injection Molding Systems, Ltd. Method for inductive and resistive heating of an object
KR100762010B1 (ko) * 2006-07-07 2007-09-28 윤국선 유도가열 방식의 온열매트
CN104505799B (zh) * 2014-12-30 2017-09-05 赵钦基 导线端部带低阻插接连接界面的旁站电力线
CN105576317B (zh) * 2016-01-27 2018-06-15 广州宝狮无线供电技术有限公司 程控式电磁感应加热装置及利用此装置处理废电池的方法
CN109595789B (zh) * 2019-02-13 2024-02-06 深圳热鑫能源科技有限公司 一种卧式热水机
CN113242623B (zh) * 2021-05-13 2024-04-30 烟台大学 一种金属电磁感应加热-相变储热的管道式流体升温装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146343A (en) * 1977-05-25 1978-12-20 Hitachi Ltd Electromagnetic induction heating device
JPS616207A (ja) * 1983-12-07 1986-01-11 Toshiba Ceramics Co Ltd 誘導加熱炉の炉心管
JPS63190280A (ja) * 1987-01-30 1988-08-05 株式会社東芝 高周波誘導加熱用ロ−ラ
GB8823182D0 (en) * 1988-10-03 1988-11-09 Ici Plc Reactor elements reactors containing them & processes performed therein
FR2645941A1 (fr) * 1989-04-14 1990-10-19 Procedes Petroliers Petrochim Dispositif de liaison entre un support metallique et un element tubulaire en materiau refractaire du type ceramique, et installation de pyrolyse d'hydrocarbures comprenant de tels elements et leurs dispositifs de liaison
JPH0644071Y2 (ja) * 1989-05-16 1994-11-14 帝人製機株式会社 加熱ローラの加熱装置
JP2889607B2 (ja) * 1989-09-09 1999-05-10 株式会社瀬田技研 電磁誘導加熱装置および電磁誘導加熱方法
DZ1444A1 (fr) * 1989-09-12 2004-09-13 Inst Francais Du Petrole Procédé et réacteur d'oxydation à differentiel de perte de charge et son utilisation.
JP3553627B2 (ja) * 1993-06-30 2004-08-11 株式会社瀬田技研 電磁誘導熱変換器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2171551C1 (ru) * 2000-12-15 2001-07-27 ООО "КД-Электро" Установка индукционного нагрева станины электрической машины и индуктор установки индукционного нагрева станины электрической машины
AU2010201462A1 (en) * 2009-11-10 2011-05-26 Kukel International Group Limited Magnetic hygienical water tap
EP2336089A3 (fr) * 2009-11-10 2011-12-07 Kukel Technology Company Limited Robinet d'eau hygiénique magnétique
AU2010201462B2 (en) * 2009-11-10 2012-01-12 Kukel International Group Limited Magnetic hygienical water tap

Also Published As

Publication number Publication date
JP3628705B2 (ja) 2005-03-16
EP0873045A4 (fr) 1998-12-30
KR19990036094A (ko) 1999-05-25
CN1192318A (zh) 1998-09-02
WO1997006652A1 (fr) 1997-02-20
AU6629696A (en) 1997-03-05

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