EP0341441A2 - 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
EP0341441A2
EP0341441A2 EP89106479A EP89106479A EP0341441A2 EP 0341441 A2 EP0341441 A2 EP 0341441A2 EP 89106479 A EP89106479 A EP 89106479A EP 89106479 A EP89106479 A EP 89106479A EP 0341441 A2 EP0341441 A2 EP 0341441A2
Authority
EP
European Patent Office
Prior art keywords
armature
leg
anchor
anchors
shaft
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
EP89106479A
Other languages
German (de)
English (en)
Other versions
EP0341441A3 (fr
EP0341441B1 (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 insulating bodies made of ceramic fibers in industrial furnaces, the heating conductors being held in the regions of their deflections by metallic anchors arranged on the insulating bodies.
  • the two legs of the load hook-like bends each have a relatively large length in order to be able to hold the heating conductors even when the latter have lengthened as a result of heating to operating temperature, for example to 1000 ° C. and more.
  • the metallic anchors also heat up accordingly.
  • the anchors for example heated to 1000 ° C and possibly even more, are deformed by their own weight so that the heating conductors are no longer in the correct position and secure, even though the anchors are made of high-alloy, high-temperature-resistant metal consist.
  • the object of the invention is to improve a device of the type specified in the preamble of claim 1 in such a way that a higher dimensional stability of the anchor than previously can be achieved with simple means and measures.
  • the anchors each have only one leg that struts laterally from the anchor shaft and is arranged at a parallel distance from the hot side of the insulating body and has a heating conductor.
  • the legs of the anchors are each bent at right angles to the anchor shafts.
  • the legs of the anchors have end parts bent toward the hot side of the insulating body.
  • An independent invention which also leads to a further increase in the correct and positionally secure mounting of the heating conductor or heaters with the above-described design of the anchors, consists in the fact that the anchors have bracket-like supports that strive laterally from the anchor shafts and rest on the hot side of the insulating body .
  • the supports are each arranged below the anchor shafts, so that the console-like supports counteract a downward bending of the anchor parts projecting from the insulating bodies by gravity.
  • a material-saving design of the supports is characterized in that it is designed as a straight rod running parallel from the anchor shaft to the anchor leg, the support also preferably being welded to the anchor shaft.
  • bracket-like support by a laterally striving folding of the anchor shaft.
  • a further embodiment which is advantageous in the sense of the object of the present invention is characterized in that a Supporting angle piece is attached, wherein one leg of the angle piece rests on the anchor shaft, but the other angle piece leg is aligned with the bent armature leg and is arranged at a parallel distance.
  • the angle piece is preferably attached to the anchor shaft by welding.
  • the leg of the angle piece which lies against the anchor shaft to have clips which encompass the anchor shaft and which can be integrally formed on the angle piece.
  • Another one-piece design of the anchor described above is that a bend forming the support is arranged on the anchor shaft, 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 heating ladder-holding leg is bent.
  • FIG. 1 two successive anchors 3 made of high-temperature-resistant metal for holding the heating conductor are shown in an insulating body 1 made of ceramic fibers in the longitudinal direction of a meandering heating conductor 2.
  • the anchors each attack the bends of the heating conductor 2.
  • the shafts 4 of the armatures 3 are directed at a right angle 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.
  • a leg 6 which is parallel to the hot side 5 of the insulating body 1 and is arranged at a distance from the hot side 5 is formed.
  • the leg 6 of the armature 3 arranged on the left-hand side has an end part 7 which is bent towards the hot side 5 of the insulating body 1 and which, although it allows the heating conductor 2 to be hooked in, makes it difficult to unintentionally loosen the heating conductor 2 and displaces the heating conductor 2 relative to the left-hand side Anchor 3 prevented.
  • the leg of the right-hand armature 3 is straight and so long that the heating conductor 2, heated to operating temperature, has its length increases along the leg 6 can move and is held securely.
  • the anchors 3 are made in one piece from wire sections of circular profile. Their shaft parts engaging in the insulating body 1 have projections, not shown, which project laterally and which secure the anchors 3 both against rotation about their longitudinal axis and in the direction of the longitudinal extent in the insulating body 1.
  • the anchors 3 of the holder of a meandering electrical heating conductor 2 shown in FIG. 2 at a distance from the hot side 5 of a vertically arranged insulating body 1 each have a console-like support 8 resting on the hot side 5.
  • the support 8 of the lower armature 3 is designed as a straight rod which extends in parallel to 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 right-angled downward curvature 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 armature leg 6.
  • a U-shaped angle piece 10 ' is welded to the armature 3 to form a support 8, both angle piece legs being aligned with the anchor angle piece 6.
  • the support 8 is formed by folding the anchor shaft 4 in the same direction as the anchor leg 6.

Landscapes

  • Resistance Heating (AREA)
  • Furnace Details (AREA)
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
DE3816420A DE3816420A1 (de) 1988-05-13 1988-05-13 Vorrichtung zur halterung elektrischer heizleiter in einem industrieofen
DE3816420 1988-05-13

Publications (3)

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

Citations (8)

* 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
FR2382662A1 (fr) * 1977-03-04 1978-09-29 Sauder Industries Procede et appareil pour soutenir des elements dans une enceinte thermiquement isolee, en particulier dans un four ou un compartiment de refrigeration
US4341916A (en) * 1980-10-30 1982-07-27 Manville Service Corporation Electric furnace insulation module
US4443881A (en) * 1982-06-01 1984-04-17 Northcutt Donald R Suspension system for electric heating elements
DE8803184U1 (fr) * 1988-03-09 1988-05-05 Abicht, Roland, Ing.(Grad.), 5828 Ennepetal, De
DE8806344U1 (fr) * 1988-05-13 1988-10-13 Abicht, Roland, Ing.(Grad.), 5828 Ennepetal, De
EP0331880A1 (fr) * 1988-03-09 1989-09-13 Abicht, Roland, Ing. grad. Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (8)

* 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
FR2382662A1 (fr) * 1977-03-04 1978-09-29 Sauder Industries Procede et appareil pour soutenir des elements dans une enceinte thermiquement isolee, en particulier dans un four ou un compartiment de refrigeration
US4341916A (en) * 1980-10-30 1982-07-27 Manville Service Corporation Electric furnace insulation module
US4443881A (en) * 1982-06-01 1984-04-17 Northcutt Donald R Suspension system for electric heating elements
DE8803184U1 (fr) * 1988-03-09 1988-05-05 Abicht, Roland, Ing.(Grad.), 5828 Ennepetal, De
EP0331880A1 (fr) * 1988-03-09 1989-09-13 Abicht, Roland, Ing. grad. Dispositif pour supporter des conducteurs chauffants électriques dans des fours industriels
DE8806344U1 (fr) * 1988-05-13 1988-10-13 Abicht, Roland, Ing.(Grad.), 5828 Ennepetal, De

Also Published As

Publication number Publication date
DE3816420A1 (de) 1989-11-23
ATE107830T1 (de) 1994-07-15
EP0341441A3 (fr) 1991-07-03
DE3816420C2 (fr) 1990-05-17
EP0341441B1 (fr) 1994-06-22

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