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EP0341441B1 - Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel - Google Patents

Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel Download PDF

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Publication number
EP0341441B1
EP0341441B1 EP89106479A EP89106479A EP0341441B1 EP 0341441 B1 EP0341441 B1 EP 0341441B1 EP 89106479 A EP89106479 A EP 89106479A EP 89106479 A EP89106479 A EP 89106479A EP 0341441 B1 EP0341441 B1 EP 0341441B1
Authority
EP
European Patent Office
Prior art keywords
anchor
anchor shaft
limb
anchors
insulating body
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.)
Expired - Lifetime
Application number
EP89106479A
Other languages
German (de)
English (en)
Other versions
EP0341441A2 (fr
EP0341441A3 (fr
Inventor
Roland Ing. Grad. Abicht
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.)
ABICHT, ROLAND, ING. GRAD.
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0341441A2 publication Critical patent/EP0341441A2/fr
Publication of EP0341441A3 publication Critical patent/EP0341441A3/fr
Application granted granted Critical
Publication of EP0341441B1 publication Critical patent/EP0341441B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 device for holding electrical, meandering heating conductors at a distance from the hot side of the side walls of an insulating body made of ceramic fibers in industrial furnaces, the heating elements in the areas of their upper and lower deflections of metallic anchors arranged on the insulating body, in particular made of wire sections. are held, the anchors also having console-like supports, which strut laterally from the anchor shafts and can be placed on the hot side of the insulating body, and the supports of the respective upper anchors are each formed by a downward-directed bend adjoining the anchor shaft.
  • each of the two legs of the load hook-like bends has a relatively large length in order to be able to hold the heating conductor even if the latter heats up to operating temperature, e.g. to 1000 ° C more.
  • the metallic anchors When the heating conductor is heated, the metallic anchors also heat up accordingly. It has been shown, however, that the e.g. Deformed to 1000 ° C and possibly more heated anchors already by their own weight that afterwards a correct and positionally secure mounting of the heating conductors is no longer possible, although the anchors consist of high-alloy, high-temperature-resistant metal.
  • the invention is based on the object of improving a device of the type specified in the preamble of claim 1 in such a way that at least while maintaining the advantages given in the prior art, a substantial simplification and reduction in price of the device itself and its manufacture and its assembly can be achieved.
  • the supports of the lower anchors are each designed as a straight rod running parallel from the anchor shaft to the leg, and furthermore the support designed as a rod is welded to the anchor shaft.
  • bracket-like support by a laterally striving folding of the anchor shaft.
  • a further advantageous embodiment in the sense of the object of the present invention is characterized in that an angle piece forming the support is fastened to the anchor shaft, one leg of the angle piece abutting the anchor shaft, the other angle piece leg, however, being aligned with the bent armature leg and arranged at a parallel distance.
  • the angle piece can advantageously be attached to the anchor shaft by welding.
  • the anchor on the anchor shaft Leg of the elbow has the anchor shaft encompassing brackets that can be integrally formed on the elbow.
  • Another one-piece design of the prescribed anchor is that a bend forming the support is arranged on the anchor shaft, which is followed by a section running approximately parallel to the anchor shaft towards the free end of the armature, from which the aforementioned bend opposes the one holding the heating conductor Leg is bent.
  • FIG. 1 two successive anchors 3, 3 'made of heat-resistant metal for holding the heating conductor are shown in an insulating body 1 made of ceramic fibers in the longitudinal extension of a meandering heating conductor 2.
  • the anchors each attack the bends of the heating conductor 2.
  • the shafts 4, 4 'of the anchors 3, 3' are directed at right angles to the hot side 5 of the insulating body 1 and are embedded in the insulating body 1 in a manner which is virtually non-detachable.
  • the legs 6, 6 ', on which the bends of the heat conductor 2 are supported or which overlap the bend of the heat conductor 2, are directed in opposite directions.
  • the leg 6 of the armature arranged at the top in FIG.
  • the leg 6 'of the armature 3' lying in the drawing figure 1 is so long that the heating conductor 2 heated to the operating temperature, the length of which increases in the process, can move along the leg 6 'and is still held securely.
  • the anchors 3,3 ' are made in one piece from wire sections of circular profile. Their shaft parts engaging in the insulating body 1 have protrusions, not shown, which project laterally and which secure the anchors 3, 3 'both against rotation about their longitudinal axis and in the direction of the longitudinal extent in the insulating body 1.
  • the anchors 3, 3 'each have a bracket-like support 8, 8' resting on the hot side 5.
  • the support 8 'of the lower armature 3' is designed as a straight rod which extends in the same direction as the leg 6 'of the armature 3' and is oriented in the same direction and welded to the armature shaft 4 '.
  • the shaft of the upper armature 3 has a bend which is directed downwards at right angles and which bears on the hot side 5 of the insulating body 1 and forms a bracket-like support 8, to which a section 9 running parallel to the armature shaft 4 adjoins the free end of the armature 3 , from which the leg 6 is bent.
  • the support 8' is formed by a right-angled angle piece 10 'welded to the anchor shaft 4'.
  • the elbow leg welded to the armature shaft 4 ' runs parallel to the armature shaft 4', while the other elbow leg is arranged in the same direction as the leg 6 'of the armature 3'.
  • a U-shaped angle piece 10 ' is welded to the armature 3' to form a support 8 ', both angle piece legs being oriented in the same direction as the leg 6' of the armature 3 '.
  • the support 8' is formed by folding the armature shaft 4 'in the same direction as the leg 6' of the armature 3 '.

Landscapes

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

Claims (8)

  1. Dispositif pour fixer des conducteurs chauffants (2) électriques en forme de méandres à distance de la face chaude (5) des parois latérales d'un isolant (1) en fibres céramiques dans des fours industriels, les conducteurs chauffants (2) étant fixés dans les zones de leurs déviations supérieures et inférieures par des griffes de fixation métalliques (3,3'), notamment en fils métalliques, disposées sur l'isolant (1), sachant en outre que les griffes de fixation (3,3') présentent des supports (8,8') semblables à des consoles qui partent latéralement des tiges (4,4') des griffes de fixation et qui peuvent être appliqués contre la face chaude de l'isolant (1) et que les supports (8) des griffes de fixation supérieures (3) sont chaque fois formés par une courbure pointant vers le bas et se raccordant à la tige (4) de la griffe de fixation, caractérisé par la combinaison des caractéristiques suivantes :
    a) la courbure de la griffe de fixation supérieure (3) est réalisée paraIlèlement à la face chaude de l'isolant (1) et est disposée contre ce dernier, et à cette courbure se raccorde, en direction de l'extrémité libre de la griffe de fixation (3), une partie (9) s'étendant approximativement parallèlement à la tige (4) de la griffe de fixation, partie de laquelle part une branche (6) pointant vers le haut qui est courbée dans le sens inverse par rapport à la courbure mentionnée précédemment, et
    b) les griffes de fixation inférieures (3') présentent chacune une branche (6') pointant vers le bas et disposée à l'extrémité libre de la tige (4') de la griffe de fixation avec un écart parallèle par rapport à la face chaude (5) de l'isolant (1), et un support (8') partant transversalement de la tige (4') de la griffe de fixation et dirigé dans le même sens que la branche (6').
  2. Dispositif selon la revendication 1, caractérisé en ce que les supports (8') des griffes de fixation inférieures (3') sont chaque fois réalisés en tant que bâtonnet droit s'étendant à partir de la tige (4') de la griffe de fixation parallèlement à la branche (6').
  3. Dispositif selon la revendication 2, caractérisé en ce que le support (8') réalisé en tant que bâtonnet est soudé à la tige (4') de la griffe de fixation.
  4. Dispositif selon la revendication 2, caractérisé en ce que le support (8') de la griffe de fixation inférieure (3') est chaque fois réalisé par une pliure de la tige (4') de la griffe de fixation.
  5. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une comière (10') formant le support (8') est fixée à la tige (4') de la griffe de fixation, sachant que l'une des ailes de la cornière (10') est appliquée contre la tige (4') de la griffe de fixation, mais que l'autre aile de la cornière est disposée parallèlement à la branche (6') de la griffe de fixation avec un écart.
  6. Dispositif selon la revendication 5, caractérisé en ce que la cornière (10') est soudée à la griffe de fixation (3').
  7. Dispositif selon la revendication 5, caractérisé en ce que l'aile de la cornière (10') qui est appliquée contre la tige (4') de la griffe de fixation présente des agrafes entourant la tige (4') de la griffe de fixation.
  8. Dispositif selon la revendication 7, caractérisé par des agrafes réalisées sur la cornière(10').
EP89106479A 1988-05-13 1989-04-12 Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel Expired - Lifetime EP0341441B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3816420 1988-05-13
DE3816420A DE3816420A1 (de) 1988-05-13 1988-05-13 Vorrichtung zur halterung elektrischer heizleiter in einem industrieofen

Publications (3)

Publication Number Publication Date
EP0341441A2 EP0341441A2 (fr) 1989-11-15
EP0341441A3 EP0341441A3 (fr) 1991-07-03
EP0341441B1 true EP0341441B1 (fr) 1994-06-22

Family

ID=6354348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106479A Expired - Lifetime EP0341441B1 (fr) 1988-05-13 1989-04-12 Dispositif de maintien pour conducteurs chauffants électriques dans un four industriel

Country Status (3)

Country Link
EP (1) EP0341441B1 (fr)
AT (1) ATE107830T1 (fr)
DE (1) DE3816420A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4109022A4 (fr) * 2020-02-18 2024-02-21 Chugai Ro Co., Ltd. Dispositif à élément chauffant électrique et fourneau de traitement thermique muni de celui-ci

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1638822A (en) * 1923-06-30 1927-08-16 Westinghouse Electric & Mfg Co Electric resistance furnace
US1767172A (en) * 1923-09-17 1930-06-24 Electric Furnace Co Resistor grid and method of supporting same
US4154975A (en) * 1977-03-04 1979-05-15 Sauder Industries, Inc. Method and apparatus for supporting electric heating elements in a furnace insulated with ceramic fiber
US4341916A (en) * 1980-10-30 1982-07-27 Manville Service Corporation Electric furnace insulation module
BR8007655A (pt) * 1980-11-24 1982-07-27 Carborundum Sa Dispositivo de suporte ou sustentacao de elementos de aquecimento eletrico em fornos e em equipamentos,isolados com fibra ceramica
US4443881A (en) * 1982-06-01 1984-04-17 Northcutt Donald R Suspension system for electric heating elements
DE3807721A1 (de) * 1988-03-09 1989-09-28 Abicht Roland Vorrichtung zur halterung von elektrischen heizleitern in industrieoefen
DE8803184U1 (de) * 1988-03-09 1988-05-05 Abicht, Roland, Ing.(grad.), 5828 Ennepetal Vorrichtung zur Halterung von elektrischen Heizleitern in Industrieöfen
DE8806344U1 (de) * 1988-05-13 1988-10-13 Abicht, Roland, Ing.(grad.), 5828 Ennepetal Vorrichtung zur Halterung elektrischer Heizleiter in einem Industrieofen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4109022A4 (fr) * 2020-02-18 2024-02-21 Chugai Ro Co., Ltd. Dispositif à élément chauffant électrique et fourneau de traitement thermique muni de celui-ci

Also Published As

Publication number Publication date
EP0341441A2 (fr) 1989-11-15
DE3816420A1 (de) 1989-11-23
ATE107830T1 (de) 1994-07-15
DE3816420C2 (fr) 1990-05-17
EP0341441A3 (fr) 1991-07-03

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