EP1818638A3 - Method for monitoring an induction oven and induction oven - Google Patents

Method for monitoring an induction oven and induction oven Download PDF

Info

Publication number
EP1818638A3
EP1818638A3 EP07002872A EP07002872A EP1818638A3 EP 1818638 A3 EP1818638 A3 EP 1818638A3 EP 07002872 A EP07002872 A EP 07002872A EP 07002872 A EP07002872 A EP 07002872A EP 1818638 A3 EP1818638 A3 EP 1818638A3
Authority
EP
European Patent Office
Prior art keywords
yoke
coil
insulation
induction oven
monitoring
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
Application number
EP07002872A
Other languages
German (de)
French (fr)
Other versions
EP1818638B1 (en
EP1818638A2 (en
Inventor
Manfred Dr.-Ing. Hopf
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.)
Saveway & Co KG GmbH
Original Assignee
Saveway & Co KG GmbH
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 Saveway & Co KG GmbH filed Critical Saveway & Co KG GmbH
Priority to PL07002872T priority Critical patent/PL1818638T3/en
Publication of EP1818638A2 publication Critical patent/EP1818638A2/en
Publication of EP1818638A3 publication Critical patent/EP1818638A3/en
Application granted granted Critical
Publication of EP1818638B1 publication Critical patent/EP1818638B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H05B6/22—Furnaces without an endless core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • 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
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces
    • H05B6/28—Protective systems

Abstract

Monitoring an induction furnace, comprising an induction coil (4) surrounded by spring-loaded yokes, with insulation between the coil and yokes, comprises independently determining the insulation status of each yoke in relation to the coil and/or earth and locating any existing or incipient defects in the insulation. An independent claim is also included for an induction furnace as above where each yoke (5) is equipped with a sensor (10) for detecting a change in the resistance of the coil-yoke insulation (9) in the vicinity of each individual yoke and/or the leakage current between each individual yoke and earth.
EP07002872A 2006-02-10 2007-02-10 Method for monitoring an induction oven and induction oven Active EP1818638B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07002872T PL1818638T3 (en) 2006-02-10 2007-02-10 Method for monitoring an induction oven and induction oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006006524A DE102006006524B4 (en) 2006-02-10 2006-02-10 Method for monitoring an induction furnace and induction furnace

Publications (3)

Publication Number Publication Date
EP1818638A2 EP1818638A2 (en) 2007-08-15
EP1818638A3 true EP1818638A3 (en) 2008-01-23
EP1818638B1 EP1818638B1 (en) 2009-01-14

Family

ID=38093296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07002872A Active EP1818638B1 (en) 2006-02-10 2007-02-10 Method for monitoring an induction oven and induction oven

Country Status (4)

Country Link
EP (1) EP1818638B1 (en)
AT (1) ATE421074T1 (en)
DE (2) DE102006006524B4 (en)
PL (1) PL1818638T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080931B (en) * 2010-12-21 2012-12-05 黄喜锤 High frequency induction aluminum melting furnace for die casting of aluminum
CN102628649A (en) * 2012-05-04 2012-08-08 苏州罗卡节能科技有限公司 Medium frequency induction furnace
DE102013002797B4 (en) 2012-11-09 2015-06-25 Abp Induction Systems Gmbh Method and device for automatically detecting the integrity of earthing electrodes in the bath of an induction furnace and induction furnace
DE102013002796B4 (en) * 2012-11-09 2015-05-07 Abp Induction Systems Gmbh Method for detecting earth faults in multi-furnace installations and a multi-furnace installation for carrying out such a method
EP2811248B1 (en) 2013-06-06 2019-05-08 Siemens Aktiengesellschaft Insulation monitoring of an electrical heating circuit for a melting furnace and method for monitoring
RU2019104712A (en) * 2016-07-25 2020-08-25 Индактотерм Корп. ELECTRIC INDUCTION OVEN WITH LINING WEAR DETECTION
DE102017221848A1 (en) * 2017-12-04 2019-06-06 Sms Group Gmbh Monitoring method and monitoring device for electrical insulation of an industrial electric furnace, as well as industrial electric furnace
DE102019006960A1 (en) * 2019-10-07 2021-04-08 ABP lnduction Systems GmbH Method for monitoring the functional status of an induction crucible furnace and induction crucible furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185887A2 (en) * 1982-08-06 1986-07-02 Daniel Scott Smalley A method and device for locating a ground fault on a coil-shaped electrical conductor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
EP0519231A2 (en) * 1991-06-19 1992-12-23 FEUERFEST ÜBERWACHUNGSTECHNOLOGIE SAVEWAY GmbH Warning installation for induction smelt furnace
US6148018A (en) * 1997-10-29 2000-11-14 Ajax Magnethermic Corporation Heat flow sensing system for an induction furnace
WO2004015349A2 (en) * 2002-08-06 2004-02-19 Lios Technology Gmbh Furnace, method and monitoring system for monitoring its condition

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199930B (en) * 1962-10-11 1965-09-02 Bbc Brown Boveri & Cie Device for signaling emerging crucible breakthroughs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0185887A2 (en) * 1982-08-06 1986-07-02 Daniel Scott Smalley A method and device for locating a ground fault on a coil-shaped electrical conductor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
EP0519231A2 (en) * 1991-06-19 1992-12-23 FEUERFEST ÜBERWACHUNGSTECHNOLOGIE SAVEWAY GmbH Warning installation for induction smelt furnace
US6148018A (en) * 1997-10-29 2000-11-14 Ajax Magnethermic Corporation Heat flow sensing system for an induction furnace
WO2004015349A2 (en) * 2002-08-06 2004-02-19 Lios Technology Gmbh Furnace, method and monitoring system for monitoring its condition

Also Published As

Publication number Publication date
ATE421074T1 (en) 2009-01-15
DE502007000370D1 (en) 2009-03-05
PL1818638T3 (en) 2009-06-30
EP1818638B1 (en) 2009-01-14
EP1818638A2 (en) 2007-08-15
DE102006006524B4 (en) 2008-11-27
DE102006006524A1 (en) 2007-08-23

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