EP0383202B1 - Stromdurchführung für Rezipienten mit heisser Wandung - Google Patents

Stromdurchführung für Rezipienten mit heisser Wandung Download PDF

Info

Publication number
EP0383202B1
EP0383202B1 EP90102542A EP90102542A EP0383202B1 EP 0383202 B1 EP0383202 B1 EP 0383202B1 EP 90102542 A EP90102542 A EP 90102542A EP 90102542 A EP90102542 A EP 90102542A EP 0383202 B1 EP0383202 B1 EP 0383202B1
Authority
EP
European Patent Office
Prior art keywords
wall
electrode
sleeve
current
sealing liquid
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 - Lifetime
Application number
EP90102542A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0383202A2 (de
EP0383202A3 (en
Inventor
Lothar Britz
Wolfgang Krug
Johann Seferiadis
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Forschungszentrum Juelich 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 Forschungszentrum Juelich GmbH filed Critical Forschungszentrum Juelich GmbH
Publication of EP0383202A2 publication Critical patent/EP0383202A2/de
Publication of EP0383202A3 publication Critical patent/EP0383202A3/de
Application granted granted Critical
Publication of EP0383202B1 publication Critical patent/EP0383202B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing

Definitions

  • the invention relates to a feedthrough for a recipient with a hot wall with the features according to the preamble of claim 1.
  • An electrical current feedthrough can be found in GB-A-206 510.
  • the disadvantage is the use of relatively many parts such as metal rings, packings, insulator and sealing liquid to seal the bushing.
  • the current feedthrough according to the invention has an extremely low leakage rate when using a suitable sealing liquid, so that the microgaps between the components used for the current feedthrough do not have a negative effect either.
  • liquid boron oxide B2O3 as a sealing liquid which, apart from being electrically insulating, is also largely chemically and thermally stable and has a low vapor pressure.
  • B2O3 seals the micro-gaps due to its high viscosity without penetrating directly into these gaps.
  • liquid hafnium fluoride (HfF4) or zirconium fluoride (ZrF4) can be used as a sealing liquid.
  • the electrode protrudes not only from the top but also from the bottom of the bushing and that an upwardly open pot which surrounds the lower end of the wall of the current lead-through is firmly connected to the electrode.
  • the pot contains so much sealing liquid that the lower boundary of the wall is completely in the sealing liquid.
  • the electrode, the bushing and the wall of the current feedthrough are dimensioned such that the lower end of the current feedthrough (ie the lower end of the bushing and wall) is in a temperature range are below 100 ° C.
  • the lower end of the wall is sealed using a suitable seal (e.g. a commercially available lead-through) or a sealing material (e.g. an adhesive that is suitable for operating temperatures up to 100 ° C) gas-tight and electrically insulating connected to the electrode.
  • FIG. 1 shows the current feedthrough for a recipient with a hot wall 1, the electrode 2 penetrating the wall 1.
  • the electrode 2 is partially closely fitted in a cylindrical insulator sleeve 3 made of Al2O3.
  • the upper end of the electrode made of graphite protrudes from the sleeve 3.
  • the sleeve 3 is closely fitted into a wall 4 which is tightly connected to the hot wall 1 of the recipient, the wall 4 above the sleeve 3 forming a space between itself and the electrode 2, which is partly filled with a suitable sealing liquid 5.
  • a pot 6 is provided, which is open at the top and firmly connected to the electrode 2.
  • the pot 6 also partially contains sealing liquid 5, to the extent that the lower end of the wall 4 is in the sealing liquid 5.
  • the wall 4 is over a flange 7 tightly connected to the wall 1 of the recipient.
  • this current feedthrough works perfectly in the temperature range between 500 and 700 ° C. Even pressure differences between the upper and lower ends of the current feedthrough up to 2 bar resulted in leak rates that were below 10 ⁇ 7 mbar x 1 / sec.
  • FIG. 2 shows an exemplary embodiment in which the sealing of the current leadthrough, according to feature d of claim 4, is achieved by using a commercially available current leadthrough.
  • the electrode 2 is closely fitted into the cylindrical insulator sleeve 3.
  • the upper end of the electrode 2 forms, together with the wall 4 surrounding the sleeve 3, a space above the sleeve which is partially filled with sealing liquid 5.
  • the commercially available leadthrough consists of an electrode 8, a wall 9 and an insulator ring 10.
  • the electrode 8 is electrically connected to the electrode 2 by means of a thread.
  • the wall 4 is soldered or welded to the wall 9 via the metallic connecting piece 12.

Landscapes

  • Insulators (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Cookers (AREA)
EP90102542A 1989-02-13 1990-02-09 Stromdurchführung für Rezipienten mit heisser Wandung Expired - Lifetime EP0383202B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904195A DE3904195A1 (de) 1989-02-13 1989-02-13 Stromdurchfuehrung fuer rezipienten mit heisser wandung
DE3904195 1989-02-13

Publications (3)

Publication Number Publication Date
EP0383202A2 EP0383202A2 (de) 1990-08-22
EP0383202A3 EP0383202A3 (en) 1990-11-14
EP0383202B1 true EP0383202B1 (de) 1994-07-20

Family

ID=6373933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102542A Expired - Lifetime EP0383202B1 (de) 1989-02-13 1990-02-09 Stromdurchführung für Rezipienten mit heisser Wandung

Country Status (4)

Country Link
US (1) US5068492A (enrdf_load_stackoverflow)
EP (1) EP0383202B1 (enrdf_load_stackoverflow)
JP (1) JPH02246718A (enrdf_load_stackoverflow)
DE (2) DE3904195A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002270125A (ja) * 2001-03-07 2002-09-20 Hitachi Ltd 高電圧電気機器
AU2014258003A1 (en) * 2013-04-10 2015-11-05 Euler Ceramic Systems As High voltage electric power feed-through apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206510A (en) * 1922-11-03 1924-05-29 Bbc Brown Boveri & Cie Improvements in vacuum-tight sleeve-insulators for leading electrodes through the walls of metal vessels
GB520207A (en) * 1938-10-21 1940-04-17 Siemens Lurgi Cottrell Elektro Improvements in or relating to leading-in insulators for high tension current
US2942615A (en) * 1957-11-25 1960-06-28 Cons Vacuum Corp Liquid seals
DE1640012A1 (de) * 1968-03-12 1970-07-09 Steinzeug Und Kunststoffwarenf Elektrische Stromdurchfuehrung
DE2133190A1 (de) * 1971-07-03 1973-01-11 Sachsenwerk Licht & Kraft Ag Hochspannungs-leistungsschalter
DE7512782U (de) * 1975-04-22 1975-09-04 Kellner E Elektrische Vakuum-Durchführung
US4512791A (en) * 1981-11-16 1985-04-23 Kyle James C Hermetically sealed insulating assembly

Also Published As

Publication number Publication date
EP0383202A2 (de) 1990-08-22
US5068492A (en) 1991-11-26
DE59006460D1 (de) 1994-08-25
EP0383202A3 (en) 1990-11-14
JPH02246718A (ja) 1990-10-02
DE3904195C2 (enrdf_load_stackoverflow) 1991-03-28
DE3904195A1 (de) 1990-08-23

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