EP0576351A1 - Schutz und Kühlvorrichtung für die Pole eines elektromagnetischen Induktors - Google Patents

Schutz und Kühlvorrichtung für die Pole eines elektromagnetischen Induktors Download PDF

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Publication number
EP0576351A1
EP0576351A1 EP93401604A EP93401604A EP0576351A1 EP 0576351 A1 EP0576351 A1 EP 0576351A1 EP 93401604 A EP93401604 A EP 93401604A EP 93401604 A EP93401604 A EP 93401604A EP 0576351 A1 EP0576351 A1 EP 0576351A1
Authority
EP
European Patent Office
Prior art keywords
tubes
pipes
poles
tube
cooling 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Withdrawn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
EP93401604A
Other languages
English (en)
French (fr)
Inventor
Claude Couffet
Jean Hellegouarc'h
Gérard Prost
Jean Camille Uring
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.)
Celes Ste
Celes SA
Original Assignee
Celes Ste
Celes SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9431132&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0576351(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Celes Ste, Celes SA filed Critical Celes Ste
Publication of EP0576351A1 publication Critical patent/EP0576351A1/de
Withdrawn legal-status Critical Current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
    • H05B6/36—Coil arrangements
    • H05B6/42—Cooling of coils

Definitions

  • the present invention relates to a device for protecting and cooling the poles of an electromagnetic inductor.
  • induction furnaces are frequently used, generally comprising a planar inductor which is provided with a thermal protection system comprising in particular an internal circulation of a cooling fluid.
  • this thermal protection system is generally constituted in the form of a thermal screen produced by the assembly of metal tubes placed side by side and supplied with cooling fluid and connected to pipes of coolant inlet and outlet.
  • the invention therefore relates to a device for thermal protection and cooling of the poles of an electromagnetic inductor, in particular for an induction furnace, of the type constituted by a plurality of tubes placed side by side and, substantially coplanar, in which a fluid circulates. cooling characterized in that the connection of said tubes on the incoming and outgoing pipes of the cooling fluid is carried out by means designed so as to ensure both an electrical discontinuity and the seal between each tube and said pipes.
  • the means ensuring the connection of the tubes to the inlet and outlet pipes of the cooling fluid consist of a bushing, welded or brazed on said pipe and in which is engaged the end of the tube opening into said pipe, seals and electrical insulation being interposed between said socket and said tube.
  • the tubes can be made of a magnetic or non-magnetic metal, preferably of non-magnetic stainless steel, or of an electrically insulating material.
  • the device for protecting the poles of the inductor is in the form of a heat shield, generally designated by the reference 10 and which is constituted by a plurality of tubes such as 16 arranged next to each other in a substantially coplanar configuration.
  • These tubes can be made of a magnetic or non-magnetic material or else of insulating materials.
  • the tubes 16 are connected at their ends respectively to a pipe 12 for the arrival of a cooling fluid, for example water and to a pipe 14 through which the fluid is discharged. cooling after circulation through the bundle of tubes 16.
  • a cooling fluid for example water
  • the invention provides the connection or connection between the ends of the tubes 16 and the pipes 12 and 14 so as to ensure both the sealing of the coolant and the electrical insulation between these ends and the said pipes .
  • this connection means consists of a socket 20, open at its two ends and engaged inside one of the pipes such as 14 or 12 , this sleeve being welded or brazed to said pipe.
  • Each socket is made so as to receive the end of a tube 16 opening into the pipe 14 or 12.
  • seals such as 22 are provided, for example, O-rings made of insulating material.
  • the magnetic field is not interrupted by the thermal protection screen according to the invention which is completely transparent to the magnetic flux.
  • the solution provided by the invention is particularly simple and inexpensive to produce, that it is -easy to implement and that, in addition, it allows rapid and uncomplicated replacement of one or more of several of the tubes 16 of the screen 10 which considerably facilitates the maintenance operations of the inductors thus equipped.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
EP93401604A 1992-06-24 1993-06-22 Schutz und Kühlvorrichtung für die Pole eines elektromagnetischen Induktors Withdrawn EP0576351A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9207739A FR2693073A1 (fr) 1992-06-24 1992-06-24 Dispositif de protection et de refroidissement des pôles d'un inducteur électro-magnétique.
FR9307739 1992-06-24

Publications (1)

Publication Number Publication Date
EP0576351A1 true EP0576351A1 (de) 1993-12-29

Family

ID=9431132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401604A Withdrawn EP0576351A1 (de) 1992-06-24 1993-06-22 Schutz und Kühlvorrichtung für die Pole eines elektromagnetischen Induktors

Country Status (4)

Country Link
US (1) US5485483A (de)
EP (1) EP0576351A1 (de)
JP (1) JPH0636870A (de)
FR (1) FR2693073A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782883A1 (fr) * 1998-08-31 2000-03-03 Philec Sa Connexion pour inducteur a circuits paralleles en electrothermie

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781437A (en) * 1953-09-10 1957-02-12 Magnethermic Corp Induction furnaces
EP0020215A1 (de) * 1979-05-23 1980-12-10 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Induktionswiedererwärmungsofen mit Wanderfeld
EP0053070A1 (de) * 1980-11-21 1982-06-02 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Metallurgische Pfanne zum induktiven Behandeln von Metallen
EP0340057A1 (de) * 1988-04-26 1989-11-02 Rotelec Schutzvorrichtung für Induktionspole und Induktor, welcher mit solch einer Vorrichtung versehen ist
WO1991006194A1 (de) * 1989-10-13 1991-05-02 Eduard Küsters Maschinenfabrik GmbH & Co. KG Spulenkörper für die induktive beheizung von walzen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125004A (en) * 1991-01-30 1992-06-23 Consarc Composition Vacuum induction melting assembly having simultaneously activated cooling and power connections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781437A (en) * 1953-09-10 1957-02-12 Magnethermic Corp Induction furnaces
EP0020215A1 (de) * 1979-05-23 1980-12-10 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Induktionswiedererwärmungsofen mit Wanderfeld
EP0053070A1 (de) * 1980-11-21 1982-06-02 INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE (IRSID) France Metallurgische Pfanne zum induktiven Behandeln von Metallen
EP0340057A1 (de) * 1988-04-26 1989-11-02 Rotelec Schutzvorrichtung für Induktionspole und Induktor, welcher mit solch einer Vorrichtung versehen ist
WO1991006194A1 (de) * 1989-10-13 1991-05-02 Eduard Küsters Maschinenfabrik GmbH & Co. KG Spulenkörper für die induktive beheizung von walzen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782883A1 (fr) * 1998-08-31 2000-03-03 Philec Sa Connexion pour inducteur a circuits paralleles en electrothermie

Also Published As

Publication number Publication date
FR2693073A1 (fr) 1993-12-31
JPH0636870A (ja) 1994-02-10
US5485483A (en) 1996-01-16

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