FR2187102A5 - High temperature electrical furnace - with phase displaced heating circuits for middle and end zones - Google Patents

High temperature electrical furnace - with phase displaced heating circuits for middle and end zones

Info

Publication number
FR2187102A5
FR2187102A5 FR7319268A FR7319268A FR2187102A5 FR 2187102 A5 FR2187102 A5 FR 2187102A5 FR 7319268 A FR7319268 A FR 7319268A FR 7319268 A FR7319268 A FR 7319268A FR 2187102 A5 FR2187102 A5 FR 2187102A5
Authority
FR
France
Prior art keywords
end zones
zone
zones
high temperature
resistors
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
FR7319268A
Other languages
French (fr)
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.)
Metallwerk Plansee GmbH
Original Assignee
Metallwerk Plansee 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 Metallwerk Plansee GmbH filed Critical Metallwerk Plansee GmbH
Application granted granted Critical
Publication of FR2187102A5 publication Critical patent/FR2187102A5/en
Expired 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
    • 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
    • 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
    • H05B3/0019—Circuit arrangements

Landscapes

  • Furnace Details (AREA)

Abstract

A circuit arrangement for the resistance heating of high temperature furnaces, which comprise a temperature regulated central zone and two end zones, is as followed: two approximately equal resistors are provided for each of the end zones, each being connected in series to its respective voltage source. The supply for heating the principal zone is introduced through the centre of the voltage sources for the end zones, the resistance heater for the principal zone being connected to the centre of each resistance system, i.e., between each pair of resistors, of the other two zones; the phase of the voltage sources for the end zones is approx. 90 degrees displaced from the phase of the voltage source for the principal zone. In a preferred furnace arrangement, the heating unit is a graphite tube; the end portions are slotted axially to divide this tube into the two resistors in each end zone. Advantages achieved are reduced losses from heavy conductors and improved temperature distribution and control.
FR7319268A 1972-06-02 1973-05-28 High temperature electrical furnace - with phase displaced heating circuits for middle and end zones Expired FR2187102A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT474372A AT311071B (en) 1972-06-02 1972-06-02 Switching arrangement for heating high-temperature furnaces

Publications (1)

Publication Number Publication Date
FR2187102A5 true FR2187102A5 (en) 1974-01-11

Family

ID=3567797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319268A Expired FR2187102A5 (en) 1972-06-02 1973-05-28 High temperature electrical furnace - with phase displaced heating circuits for middle and end zones

Country Status (3)

Country Link
AT (1) AT311071B (en)
DE (1) DE2321688A1 (en)
FR (1) FR2187102A5 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124684B (en) * 2021-04-15 2022-09-16 内蒙古恒科新材料科技有限公司 Graphite furnace power transmission system for producing graphite cathode material

Also Published As

Publication number Publication date
DE2321688A1 (en) 1973-12-13
AT311071B (en) 1973-10-25

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Legal Events

Date Code Title Description
ST Notification of lapse