GB989988A - Improvements in or relating to electric resistance furnaces - Google Patents

Improvements in or relating to electric resistance furnaces

Info

Publication number
GB989988A
GB989988A GB1889963A GB1889963A GB989988A GB 989988 A GB989988 A GB 989988A GB 1889963 A GB1889963 A GB 1889963A GB 1889963 A GB1889963 A GB 1889963A GB 989988 A GB989988 A GB 989988A
Authority
GB
United Kingdom
Prior art keywords
furnace
insulation
heating elements
vault
lead
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
GB1889963A
Inventor
Anders Enert Molm
Rolf Birger Thorselius
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.)
Kanthal AB
Original Assignee
Kanthal AB
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 Kanthal AB filed Critical Kanthal AB
Priority to GB1889963A priority Critical patent/GB989988A/en
Publication of GB989988A publication Critical patent/GB989988A/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
    • H05B3/66—Supports or mountings for heaters on or in the wall or roof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

989,988. Mounting resistance-heating elements in furnaces. KANTHAL A.B. May 13, 1963, No. 18899/63. Heading H5H. In a furnace comprising hairpin-shaped resistance-heating elements of MoSi 2 , each having a glow zone portion 12, Fig. 4, depending freely in the furnace space and two spaced lead-in ends 13 passing to the exterior through insulation 16 in a vault or wall of the furnace, a middle portion 16B of this insulation is designed for good transfer of heat from the lead-ins to a central layer 14B of the furnace vault or wall of good heat conductivity, there being further electrically-insulating layers of a lower heat conductivity 'material disposed on opposite sides of the middle portion and the central layer. The central layer 14B of the furnace vault may include or be replaced by a cooling channel 19, Fig. 5, for circulation of air or water, having walls 20 of good heat conductivity in contact with the central portion 16B of insulation 16, the cooling channel being common to a plurality of heating elements disposed in a row. Also, as shown in Fig. 5, the central portions of the lead-ins 13 may radiate heat to a ceramic tube 21, the ends of which are secured in brick plugs 22, 23.
GB1889963A 1963-05-13 1963-05-13 Improvements in or relating to electric resistance furnaces Expired GB989988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1889963A GB989988A (en) 1963-05-13 1963-05-13 Improvements in or relating to electric resistance furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1889963A GB989988A (en) 1963-05-13 1963-05-13 Improvements in or relating to electric resistance furnaces

Publications (1)

Publication Number Publication Date
GB989988A true GB989988A (en) 1965-04-22

Family

ID=10120322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1889963A Expired GB989988A (en) 1963-05-13 1963-05-13 Improvements in or relating to electric resistance furnaces

Country Status (1)

Country Link
GB (1) GB989988A (en)

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