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WO1987003079A1 - Corps chauffant autoporteur pour fours electriques et four electrique avec ce corps chauffant - Google Patents

Corps chauffant autoporteur pour fours electriques et four electrique avec ce corps chauffant Download PDF

Info

Publication number
WO1987003079A1
WO1987003079A1 PCT/HU1986/000058 HU8600058W WO8703079A1 WO 1987003079 A1 WO1987003079 A1 WO 1987003079A1 HU 8600058 W HU8600058 W HU 8600058W WO 8703079 A1 WO8703079 A1 WO 8703079A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
spacers
furnace
turns
profile
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.)
Ceased
Application number
PCT/HU1986/000058
Other languages
German (de)
English (en)
Inventor
Lajos LUDÁNYI
Jutka HÁRSY
István BIRÓ
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.)
Mikron Ipari Es Szolgaltato Kisszovetkezet
Original Assignee
Mikron Ipari Es Szolgaltato Kisszovetkezet
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 Mikron Ipari Es Szolgaltato Kisszovetkezet filed Critical Mikron Ipari Es Szolgaltato Kisszovetkezet
Publication of WO1987003079A1 publication Critical patent/WO1987003079A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/66—Supports or mountings for heaters on or in the wall or roof

Definitions

  • the invention relates to a self-supporting radiator for electric ovens, which is made of a resistance wire or profile, or tape or an induction coil, this radiator being designed in a known manner spiral or folded and according to the invention spacers made of heat-resistant and electrical between the turns of the radiator insulating material are arranged.
  • the heat distribution of the furnace can be dimensioned differently along its longitudinal or vertical axis.
  • the individual radiator sections with different winding increases can also be provided with an electrical supply line.
  • spacers are arranged at the end of the heating coil or the folded radiator, each of which only one side rests on the heating resistor, the projecting ends of the fastening pins of these spacers being provided with a stop. Since the heating elements are self-supporting, their assembly and replacement is easier and cheaper than with conventional furnace designs.
  • Fig.6A-C radiator with circular shape in I'ups looks.
  • the inventive, designed with resistance or inductive radiator 2 consists of a resistance wire 5 or profile or a band 6 or an inductive winding, whereby spacers 8 made of heat-resistant and electrically insulating material are arranged between the turns. These are preferably made of aluminum oxide or porcelain, but can also be made of insulating stone or quartz. Two, preferably three spacers 8 are preferably arranged symmetrically per turn. Each spacer 8 is provided with a bore 1, these bores being arranged parallel to the longitudinal axis of the radiator 2.
  • Fastening pins 7 are arranged in the bores and consist of a heat-resistant material or, in the case of resistance heating systems, preferably of a material identical to the material of the radiator.
  • the fastening pin 8 is arranged continuously between the spacers 8 located in a row.
  • the fastening pin consists of an electrically insulating material, for example a ceramic material.
  • On the two opposite sides of the spacers 8 grooves h 1 , h p are formed, in which the heating wire, the profile or the band rests, and which are the shape and curvature r 1 , r 2 , r 3 of the resistance wire 5 or Adapt induction winding wire, profile or ribbon 6.
  • the distance h 1 , h 2 between the mutually opposite grooves corresponds to the increase in the number of turns of the radiator.
  • the fastening pins 7 protrude beyond the radiator, fasten it in the longitudinal direction and make it self-supporting.
  • At the end of the last turn of the heating coil or the folded radiator spacers 10 are also arranged, so only one rest on one side of the radiator with the other side exposed.
  • a stop 4 is formed at the end of the fastening pins projecting beyond these spacers.
  • the end of the spacers 8 projecting beyond the level of the radiator lies on the ceramic casing 9 of the furnace 3. This ensures a gap between the radiator and the external heat insulation.
  • the dimensions of this intermediate space can be adjusted by means of the spacers formed with a suitably selected height and at the same time the centering of the radiator is also released.
  • a row of spacers arranged at an angle of 60 ° has proven to be extremely advantageous.
  • Spacers with different thicknesses v 1 , v 2 can also be used along the longitudinal axis of the radiator.
  • the spacers with different thickness By using the spacers with different thickness, the winding increase of the radiator changes and along the longitudinal or vertical axis of the furnace, sections with different heat profiles are formed. Such sections with different heat profiles were formed in the previous solutions by separate electrical leads. These separate feed lines are not required in the solution according to the invention, which simplifies the construction.
  • the spacers fix them and keep them centered.
  • the spacers according to the invention can also be used for heating plates, radiant heaters and ovens with a square profile. In this case, the dimensions determine the distribution and number of spacers.
  • the material used for the fastening elements is preferably an oxide ceramic of appropriate purity formed by extrusion. However, if only a small number of items are to be produced, it is expedient and more economical to manufacture the molded pieces from insulating stone by means of chip removal and to subject them to a thermal treatment at a temperature of 1100-1200 ° C.

Landscapes

  • Resistance Heating (AREA)
  • Furnace Details (AREA)

Abstract

Un corps chauffant électrique comprend des spires entre lesquelles sont agencées des pièces d'écartement en un matériau résistant à la chaleur et électriquement isolant, par exemple de la céramique oxydée. Des chevilles de fixation traversent des alésages formés dans les pièces d'écartement et s'étendent de manière continue dans les pièces d'écartement agencées en rangées, en fixant celles-ci. En utilisant des pièces d'écartement d'épaisseurs diverses, on peut modifier l'écart entre les spires du corps chauffant. Le four électrique pourvu d'un corps chauffant comprend des pièces d'écartement fixées dans l'enveloppe en céramique du four, le long de son axe longitudinal, et des corps chauffants agencés entre les pièces d'écartement.
PCT/HU1986/000058 1985-11-11 1986-11-11 Corps chauffant autoporteur pour fours electriques et four electrique avec ce corps chauffant Ceased WO1987003079A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU4289/85 1985-11-11
HU428985 1985-11-11

Publications (1)

Publication Number Publication Date
WO1987003079A1 true WO1987003079A1 (fr) 1987-05-21

Family

ID=10967559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1986/000058 Ceased WO1987003079A1 (fr) 1985-11-11 1986-11-11 Corps chauffant autoporteur pour fours electriques et four electrique avec ce corps chauffant

Country Status (1)

Country Link
WO (1) WO1987003079A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632110A4 (fr) * 2003-05-23 2009-04-08 Mrl Ind Inc Mecanisme de retenue pour une bobine de chauffage de dispositif de chauffage par diffusion a haute temperature

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU246721A1 (ru) * Н. М. Мытарев, В. И. Иванов , Г. А. Фомин Нагревательный элемент для электропечей сопротивления
SU11421A1 (ru) * 1928-01-04 1929-09-30 С.Д. Гефтер Электрический нагревательный прибор
DE545403C (de) * 1932-02-29 Siemens Elektrowaerme Ges M B Isolierstein zum Tragen von schraubenfoermig ausgebildeten Heizwiderstaenden von elektrischen Gluehoefen
US2139201A (en) * 1936-04-08 1938-12-06 Kanthal Ab Electrically heated shaft furnace
US2162030A (en) * 1930-04-21 1939-06-13 Capstan Glass Co Heating device for glass lehrs and the like
GB1248574A (en) * 1967-12-22 1971-10-06 Dimo Ltd Improvements in or relating to furnace linings
US3984615A (en) * 1975-10-14 1976-10-05 Btu Engineering Corporation Electrical resistance furnace heater
US4011395A (en) * 1975-09-15 1977-03-08 Btu Engineering Company Electric furnace heater
US4392052A (en) * 1981-04-03 1983-07-05 Bulten-Kanthal Ab Device for carrying electrical resistance elements

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU246721A1 (ru) * Н. М. Мытарев, В. И. Иванов , Г. А. Фомин Нагревательный элемент для электропечей сопротивления
DE545403C (de) * 1932-02-29 Siemens Elektrowaerme Ges M B Isolierstein zum Tragen von schraubenfoermig ausgebildeten Heizwiderstaenden von elektrischen Gluehoefen
SU11421A1 (ru) * 1928-01-04 1929-09-30 С.Д. Гефтер Электрический нагревательный прибор
US2162030A (en) * 1930-04-21 1939-06-13 Capstan Glass Co Heating device for glass lehrs and the like
US2139201A (en) * 1936-04-08 1938-12-06 Kanthal Ab Electrically heated shaft furnace
GB1248574A (en) * 1967-12-22 1971-10-06 Dimo Ltd Improvements in or relating to furnace linings
US4011395A (en) * 1975-09-15 1977-03-08 Btu Engineering Company Electric furnace heater
US3984615A (en) * 1975-10-14 1976-10-05 Btu Engineering Corporation Electrical resistance furnace heater
US4392052A (en) * 1981-04-03 1983-07-05 Bulten-Kanthal Ab Device for carrying electrical resistance elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632110A4 (fr) * 2003-05-23 2009-04-08 Mrl Ind Inc Mecanisme de retenue pour une bobine de chauffage de dispositif de chauffage par diffusion a haute temperature

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