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DE683307C - Electric resistance furnace - Google Patents

Electric resistance furnace

Info

Publication number
DE683307C
DE683307C DEJ48624D DEJ0048624D DE683307C DE 683307 C DE683307 C DE 683307C DE J48624 D DEJ48624 D DE J48624D DE J0048624 D DEJ0048624 D DE J0048624D DE 683307 C DE683307 C DE 683307C
Authority
DE
Germany
Prior art keywords
furnace
metal strips
electric resistance
sheet metal
resistance furnace
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
Application number
DEJ48624D
Other languages
German (de)
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.)
JUNKER FA O
Original Assignee
JUNKER FA O
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 JUNKER FA O filed Critical JUNKER FA O
Priority to DEJ48624D priority Critical patent/DE683307C/en
Application granted granted Critical
Publication of DE683307C publication Critical patent/DE683307C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/62Heating elements specially adapted for furnaces
    • H05B3/64Heating elements specially adapted for furnaces using ribbon, rod, or wire heater

Landscapes

  • Furnace Details (AREA)

Description

Elektrischer Widerstandsofen Zusatz zum Patent 641 o69 Das Patent 641 o69 betrifft einen elektrischen Widerstandsofen, bei dem die in Abständen nebeneinander angeordneten streifenförmigen Heizwiderstände sich selbst tragend die innere Ofenwand bilden, wobei die Heizwiderstände in Form von schmalen, bogenförmig profilierten Blechstreifen ausgebildet sind. Der Abstand zwischen ,den Blechstreifen wird dabei zweckmäßig durch keramische Abstandhalter gewahrt.Electric resistance furnace Addition to patent 641 o69 The patent 641 o69 relates to an electric resistance furnace, in which the spaced apart arranged strip-shaped heating resistors are self-supporting the inner furnace wall form, the heating resistors in the form of narrow, arched profiles Sheet metal strips are formed. The distance between the sheet metal strips is thereby appropriately preserved by ceramic spacers.

Bei elektrischen Widerstandsöfen ist es allgemein erwünscht, die Heizelemente ohne Zerlegung des Ofens auswechselbar anzuordnen. Es ist bereits bekannt, bei an Haltesteinen oder Traggestellen befestigten elektrischen Heizelementen diese ohne Entfernung der Isolierung bzw. des Mauerwerks auswechselbar zu machen oder die Isolierung haubenförmig abhebbar auszubilden. Hierbei ist bekannt, die Isolierung durch eine besondere Tragwand von den Heizkörpern zu trennen.In electrical resistance furnaces, it is generally desirable to have the heating elements to be arranged interchangeably without dismantling the furnace. It is already known at Holding stones or support frames attached to these electrical heating elements without Removal of the insulation or the masonry to make replaceable or the insulation to be designed in a hood-like manner so that it can be lifted off. It is known that the isolation by a separate supporting wall from the radiators.

Gemäß der Erfindung wird diese an sich bekannte Trag- oder Trennwand zugleich zur Wahrung des seitlichen Abstandes zwischen den nebeneinander angeordneten, profilierten Blechstreifen verwendet, welche gemäß dem Hauptpatent die Heizwiderstände bilden. Die profilierten Blechstreifen werden rückseitig von einer festen, keramischen Schicht umgaben, die nach dem Ofeninnern zu Vorsprünge, z. B. Rippen, aufweist, welche in die Zwischenräume zwischen den Heizstreifen greifen und deren Abstand wahren. Die Schicht dient gleichzeitig als Trennwand zwischen den Heizwidexständien und der, meist losen, Ofenisolierung.According to the invention, this per se known support or partition wall at the same time to maintain the lateral distance between the side by side, profiled sheet metal strips used, which according to the main patent, the heating resistors form. The profiled sheet metal strips are backed by a solid, ceramic Surrounded layer, which after the furnace interior to projections, z. B. ribs, which reach into the spaces between the heating strips and their spacing true. The layer also serves as a partition between the Heizwidexständien and the, mostly loose, furnace insulation.

Die Trennwand mit den Abstandhaltern kann aus elektrisch isolierendem, hitzebeständigem Zement gestampft und festgebrannt sein, oder es. können. Schamotteformsteine, hierfür verwandt werden. Die Ausbildung der Trennwand erfolgt zweckmäßig so dünn, als dies die Festigkeit der Trennwand, welche die darauf lastende Isolierung trägt, zuläßt.The partition with the spacers can be made of electrically insulating, Refractory cement rammed and seared, or it. can. Fireclay bricks, can be used for this. The partition wall is expediently so thin that than the strength of the partition wall which supports the insulation on it, allows.

Die Heizkörper sind mit der Trennwand selbst nicht verbunden. Das Auswechseln der Heizkörper erfolgt in einfacher Weise durch Herausnehmen aus dem Ofeninnern oder aus den seitlichen Öffnungen des Ofens.The radiators are not connected to the partition itself. That Replacing the radiator is done in a simple manner by removing it from the Inside the oven or from the side openings of the oven.

Claims (1)

PATENTANSPRUCH: Elektrischer Widerstandsofen nach Patent 641 o69, bei dem ,die aus schmalen profilierten, nebeneinander angeordneten Blechstreifen bestehenden Heizwiderstände sich selbst tragend die innere Ofenwand bilden, dadurch gekennzeichnet, daB die profilierten Blechstreifen rückseitig von einer festen keramischen Schicht umgeberra sind, die nach dem Ofeninnern zu V;)A sprünge zur Wahrung des Abstandes zwischen den Blechstreifen aufweist und gleichzeitig als Trennwand zwischen dem Heizwiderstand und der Ofenisolierung dient.PATENT CLAIM: Electric resistance furnace according to patent 641 o69, the one made of narrow profiled sheet metal strips arranged side by side existing heating resistors the inner furnace wall is self-supporting form, characterized in that the profiled sheet metal strips on the back of are surrounded by a solid ceramic layer, which after the furnace interior to V;) A has cracks to maintain the distance between the metal strips and at the same time serves as a partition between the heating resistor and the furnace insulation.
DEJ48624D 1933-06-27 1933-06-27 Electric resistance furnace Expired DE683307C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ48624D DE683307C (en) 1933-06-27 1933-06-27 Electric resistance furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ48624D DE683307C (en) 1933-06-27 1933-06-27 Electric resistance furnace

Publications (1)

Publication Number Publication Date
DE683307C true DE683307C (en) 1939-11-03

Family

ID=7206576

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ48624D Expired DE683307C (en) 1933-06-27 1933-06-27 Electric resistance furnace

Country Status (1)

Country Link
DE (1) DE683307C (en)

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