EP0383202A2 - Traversée de courant pour récipients à paroi chaude - Google Patents
Traversée de courant pour récipients à paroi chaude Download PDFInfo
- Publication number
- EP0383202A2 EP0383202A2 EP90102542A EP90102542A EP0383202A2 EP 0383202 A2 EP0383202 A2 EP 0383202A2 EP 90102542 A EP90102542 A EP 90102542A EP 90102542 A EP90102542 A EP 90102542A EP 0383202 A2 EP0383202 A2 EP 0383202A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- electrode
- sleeve
- sealing liquid
- recipient
- 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.)
- Granted
Links
Images
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 current feedthrough for a recipient with a hot wall, a rod-shaped, vertically or quasi-vertically arranged electrode penetrating the wall.
- the current leadthrough 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 leadthrough 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 sleeve and an upwardly open pot, which surrounds the lower end of the wall of the current leadthrough, 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 power feedthrough) 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 sleeve 3 is closely fitted in 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 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 xl / 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 feedthrough 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)
- Cookers (AREA)
- Installation Of Indoor Wiring (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3904195 | 1989-02-13 | ||
| DE3904195A DE3904195A1 (de) | 1989-02-13 | 1989-02-13 | Stromdurchfuehrung fuer rezipienten mit heisser wandung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0383202A2 true EP0383202A2 (fr) | 1990-08-22 |
| EP0383202A3 EP0383202A3 (en) | 1990-11-14 |
| EP0383202B1 EP0383202B1 (fr) | 1994-07-20 |
Family
ID=6373933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90102542A Expired - Lifetime EP0383202B1 (fr) | 1989-02-13 | 1990-02-09 | Traversée de courant pour récipients à paroi chaude |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5068492A (fr) |
| EP (1) | EP0383202B1 (fr) |
| JP (1) | JPH02246718A (fr) |
| DE (2) | DE3904195A1 (fr) |
Families Citing this family (2)
| 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 |
| EP2984657B1 (fr) * | 2013-04-10 | 2021-05-26 | Sentech AS | Appareil de traversée de puissance électrique haute tension |
Family Cites Families (7)
| 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 |
-
1989
- 1989-02-13 DE DE3904195A patent/DE3904195A1/de active Granted
-
1990
- 1990-02-09 EP EP90102542A patent/EP0383202B1/fr not_active Expired - Lifetime
- 1990-02-09 DE DE59006460T patent/DE59006460D1/de not_active Expired - Fee Related
- 1990-02-09 JP JP2028638A patent/JPH02246718A/ja active Pending
- 1990-02-12 US US07/479,085 patent/US5068492A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0383202A3 (en) | 1990-11-14 |
| US5068492A (en) | 1991-11-26 |
| EP0383202B1 (fr) | 1994-07-20 |
| DE3904195A1 (de) | 1990-08-23 |
| JPH02246718A (ja) | 1990-10-02 |
| DE59006460D1 (de) | 1994-08-25 |
| DE3904195C2 (fr) | 1991-03-28 |
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