EP0413121A1 - Bauteilesatz für ein Heizelement-Modul - Google Patents

Bauteilesatz für ein Heizelement-Modul Download PDF

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Publication number
EP0413121A1
EP0413121A1 EP90112729A EP90112729A EP0413121A1 EP 0413121 A1 EP0413121 A1 EP 0413121A1 EP 90112729 A EP90112729 A EP 90112729A EP 90112729 A EP90112729 A EP 90112729A EP 0413121 A1 EP0413121 A1 EP 0413121A1
Authority
EP
European Patent Office
Prior art keywords
frame
frame parts
parts
section
side walls
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Withdrawn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
EP90112729A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans-Joachim Balke
Elimar Adolph
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.)
Krupp VDM GmbH
Original Assignee
VDM Nickel Technologie AG
Krupp VDM 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 VDM Nickel Technologie AG, Krupp VDM GmbH filed Critical VDM Nickel Technologie AG
Publication of EP0413121A1 publication Critical patent/EP0413121A1/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Withdrawn legal-status Critical Current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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/64—Heating elements specially adapted for furnaces using ribbon, rod, or wire heater
    • 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 set of components for the production of a rectangular heating element module, consisting essentially of a four-part frame made of ceramic material, a heat-insulating rear wall, a plurality of tubular, in the frame in one plane and parallel to each other by means of inserted heating conductor carrier for receiving Wendein made of wire or ribbon-shaped heating conductor material with connections.
  • Such a heating element module is known from DE-OS 33 26 463.
  • Such modules are used as prefabricated components in the construction of industrial furnaces. They are intended to reduce the assembly time and be easily replaceable for repairs.
  • the frame consists of refractory stone cuts which are glued to the corners with a corresponding refractory mortar. Tubes are provided as heating conductor carriers, which are held in the frame by means of ceramic pins.
  • the back wall consists of a ceramic fibreboard, which is covered on the outside with a ceramic fiber mat. The electrical connections can be made on the side or on the back.
  • the known heating element module still has various disadvantages.
  • the refractory stone cuts are relatively heavy and only partially meet the desired lightweight construction.
  • the corner connection is not detachable, so that if one frame part is damaged, the entire frame must be replaced.
  • the adhesive connection can only be made with the required accuracy in the workshop, which limits the availability and handling of the heating element modules on the construction site.
  • tubular heating conductor supports can be replaced individually, but only if the pins inserted at the side have been removed, which is not possible when the module is installed because the side walls are then not accessible.
  • the rear wall can consist of a correspondingly cut section of a flat heat insulating material which is glued to the frame or is clamped between the frame and the fireproof backing of the furnace.
  • the heating element module can also be used if a separate rear wall is not required because the refractory furnace lining is constructed accordingly.
  • one of the wider side walls of the frame parts is designed to be widened over its entire length and in which a widened profile part adjoins this widening at an angle.
  • the rear wall consists of rigid ceramic fiber material and has an edge on all sides of a step-wise reduced material thickness, which in the assembled state is bordered by the shorter side walls, the extensions and the adjoining profile parts of the frame parts.
  • the frame part 1 of Figure 1 consists of a section of a hollow section of rectangular cross-section made of ceramic material and has at both ends a bore 3 parallel to the longer side walls 4, the axes of which lie in the main plane of symmetry 2 of the hollow section.
  • the frame part 5 of Figure 2 differs from the frame part 1 of Figure 1 only in that in one of the two longer side walls 4 a number of bores 6 are provided perpendicular to the main plane of symmetry 2.
  • two frame parts 1 and 5 each form the opposite sides of a rectangular frame, the bores 6 for receiving the support tubes 12 being arranged on the inside.
  • the cross-sectionally rectangular hollow profile made of ceramic material is supplemented by a hook-shaped extension which is extended by an extension 15 of one of the longer side walls 4 and an extension 15 which is parallel to the shorter side wall 16 extending profile part 17 is formed.
  • the parts 15 to 17 are used in the assembled state as a border for a heat-insulating rear wall.
  • connection corner piece 7 made of ceramic material in side view and top view. It consists of a base body 8 of square cross section and two projections 9 arranged at right angles to one another and matched to the clear cross section of the frame parts 1.5.
  • the projections 9 have bores 10 which are matched to the end bores 3 of the frame parts 1.5.
  • the connecting corner pieces 7 also have a central bore 20 in the base body 8 and, parallel thereto, a quarter-circular recess 21 on the corner facing away from the projections 9.
  • the bore 20 is used to fasten individual heating element modules on a supporting structure and the recess 21 enables four corner points to be fastened when a large number of heating element modules are arranged next to and above one another.
  • the mounting pin 11 shown in Figure 6 is made of ceramic material.
  • pins made of heat-resistant, metallic materials can also be used, for example with a head molded on one side and a pin lock at the other end.
  • the end faces 13 are of stepped design, that is to say that the support tubes 12 each have a greater or lesser length over approximately half the circumference, as a result of which recesses 14 are formed. This ensures that the support tubes 12 are offset in the assembled state axially parallel to the bores 6 and are thus secured against unintentional displacement in the axial direction. On the other hand, they can easily be displaced axially by the distance required for assembly and disassembly if they are first moved out of the fixed position and the axes of the support tubes 12 are brought into line with the center of the bore 6.
  • FIG. 8 shows a heating element module which is assembled from the component set according to the invention in a view and in section. Deviating from the representations of the other figures, the components are shown here with the rounded edges etc. according to the material. In this regard, the person skilled in the art is familiar with constructive features which do not require any special explanation.
  • the heating coil 22 and the rear wall 18 made of rigid ceramic fiber material, the latter having an edge 19 on all sides of a step-wise reduced material thickness, which extends into the hook-shaped extension of the hollow profile cross section of the frame parts formed from the parts 15 and 17 1.5 intervenes.
  • the heating element module shown is composed of two frame parts 1, two frame parts 5, four connecting corner pieces 7, eight fastening pins 11, four support tubes 12 with heating coil 22 and a rear wall 18.
  • the arrangement of the heating element modules is expediently such that the Support tubes 12 "fall” from the position concentric with the holes 6 into an axially offset position in order to be able to use the "self-locking" of the support tubes 12 mentioned.
  • the right side of Fig. 8 is to be seen as the bottom and the left side as the top. After lifting the support tubes 12, they can be moved axially and then taken out of the frame together with the heating coil 22.
  • a continuous heating coil 22 is shown, the connections (not shown) being able to be led out either to the side or to the rear.
  • the frame parts 1, 5 and the support tubes 12 can be made in different, coordinated lengths, so that heating element modules of different sizes can be built with the component set.
  • the size of the rear wall 18 and the length of the heating coil 12 must of course also be varied.
  • the fasteners 8, 12, however, can be retained and used for a whole series of module sizes.
  • the component system according to the invention can also be realized with differently sized hollow profiles and adapted fastening parts, with which a very wide range of applications can then be covered.

Landscapes

  • Resistance Heating (AREA)
EP90112729A 1989-08-16 1990-07-04 Bauteilesatz für ein Heizelement-Modul Withdrawn EP0413121A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893927006 DE3927006C1 (enrdf_load_stackoverflow) 1989-08-16 1989-08-16
DE3927006 1989-08-16

Publications (1)

Publication Number Publication Date
EP0413121A1 true EP0413121A1 (de) 1991-02-20

Family

ID=6387206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112729A Withdrawn EP0413121A1 (de) 1989-08-16 1990-07-04 Bauteilesatz für ein Heizelement-Modul

Country Status (2)

Country Link
EP (1) EP0413121A1 (enrdf_load_stackoverflow)
DE (1) DE3927006C1 (enrdf_load_stackoverflow)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650229A1 (de) * 1976-02-16 1977-08-18 Independenta Sibiu Intreprinde Heizbatterie fuer oefen mit der hoechsttemperatur von 700 grad c
FR2375789A1 (fr) * 1976-12-22 1978-07-21 Heurtey Belge Four electrique
EP0042602A1 (de) * 1980-06-21 1981-12-30 FAG Feuerungsbau AG Anordnung der Heizelemente in einem elektrisch beheizten Ofen
EP0060714A1 (en) * 1981-03-18 1982-09-22 A.W. Plume Limited Electrical resistance furnaces
US4620086A (en) * 1985-09-30 1986-10-28 General Electric Company Dual coated radiant electrical heating element
DE3520615A1 (de) * 1985-06-08 1986-12-11 Karl-Heinz Dipl.-Ing.(FH) 8501 Schwanstetten Munzert Brennofen mit elektrischer beheizung
EP0208241A1 (en) * 1985-07-09 1987-01-14 Svend a Nielsen Ingenior- og handelsaktieselskab A heating unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326463A1 (de) * 1983-07-22 1985-01-31 Egon 6834 Ketsch Könn Elektrische heizplattenmodule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650229A1 (de) * 1976-02-16 1977-08-18 Independenta Sibiu Intreprinde Heizbatterie fuer oefen mit der hoechsttemperatur von 700 grad c
FR2375789A1 (fr) * 1976-12-22 1978-07-21 Heurtey Belge Four electrique
EP0042602A1 (de) * 1980-06-21 1981-12-30 FAG Feuerungsbau AG Anordnung der Heizelemente in einem elektrisch beheizten Ofen
EP0060714A1 (en) * 1981-03-18 1982-09-22 A.W. Plume Limited Electrical resistance furnaces
DE3520615A1 (de) * 1985-06-08 1986-12-11 Karl-Heinz Dipl.-Ing.(FH) 8501 Schwanstetten Munzert Brennofen mit elektrischer beheizung
EP0208241A1 (en) * 1985-07-09 1987-01-14 Svend a Nielsen Ingenior- og handelsaktieselskab A heating unit
US4620086A (en) * 1985-09-30 1986-10-28 General Electric Company Dual coated radiant electrical heating element

Also Published As

Publication number Publication date
DE3927006C1 (enrdf_load_stackoverflow) 1991-03-07

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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