DE1640495A1 - Electrical feedthrough - Google Patents
Electrical feedthroughInfo
- Publication number
- DE1640495A1 DE1640495A1 DE19661640495 DE1640495A DE1640495A1 DE 1640495 A1 DE1640495 A1 DE 1640495A1 DE 19661640495 DE19661640495 DE 19661640495 DE 1640495 A DE1640495 A DE 1640495A DE 1640495 A1 DE1640495 A1 DE 1640495A1
- Authority
- DE
- Germany
- Prior art keywords
- tube
- interior
- operating
- pipe
- bushings
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000005405 multipole Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000209504 Poaceae Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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
- H01B17/303—Sealing of leads to lead-through insulators
- H01B17/305—Sealing of leads to lead-through insulators by embedding in glass or ceramic material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/116—Passages or insulators, e.g. for electric cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Measurement Of Radiation (AREA)
Description
Die Erfindung bezieht sich auf eine Elektrodurchführung, geeignet für Energie-, Meß- und Steuerleitungen in das Innere von Großbehältern, z.B. von Atom-Reaktoren, deren Dichtigkeit betriebsmässig laufend oder in Zeitabständen überwachbar ist.The invention relates to an electrical leadthrough, suitable for energy, measuring and control lines in the interior of large containers, e.g. of nuclear reactors, their tightness can be monitored continuously or at regular intervals.
Es ist üblich, Energie-, Meß- und Steuerleitungen unter Benutzung von sogenannten Elektrodurchführungen in das Innere von Behältern, z.B. von Atom-Reaktoren, einzuleiten. Derartige Durchführungen sind im allgemeinen so aufgebaut, daß sich in einem scheibenförmigen Grundkörper aus Stahl, der in die Behälterwandung dicht eingeschweißt oder mit ihr verflanscht ist, eine Reihe von Durchbrüchen befinden, durch welche die leitungen, vom Grundkörper mittels Glas, Keramik oder Kunststoff isoliert, in das Behälterinnere geführt werden. An die Dichtigkeit derartiger Durchführungen werden, auch naoh längerem Betrieb, hohe Ansprüche gestellt.It is common to insert power, measurement and control lines into the interior using so-called electrical feedthroughs from containers, e.g. from nuclear reactors. Such bushings are generally constructed so that in a disc-shaped base body made of steel, which is welded tightly into the container wall or flanged to it is, a number of breakthroughs are through which the lines, from the base body by means of glass, ceramic or plastic insulated, are guided into the interior of the container. The tightness of such bushings will be, even for a longer time Operation, high demands.
Trotz Abnahmeprüfung und äußerster Sorgfalt beim Einbau ist es denkbar, daß derartige Durchführungen durch rauhe Behandlung auf der Baustelle, Erschütterungen oder auch Pabrikationsmängel früher oder später doch in Einzelfällen undicht werden. Dies wäre insofern sehr unangenehm, als es naoh dem EinbauDespite the acceptance test and the utmost care during installation, it is conceivable that such bushings will sooner or later leak in individual cases due to rough handling on the construction site, vibrations or even manufacturing defects. This would be very uncomfortable in that it is after the installation
109852/0259109852/0259
einer oft recht großen Zahl von Durchführungen in große Behälter, z.B. bei Atom-Beaktoren, nicht mehr ohne weiteres möglich ist, Undichtigkeiten festzustellen bzw. zu lokalisieren. Bs bestünde dadurch die Gefahr, daß aue dem Behälterinneren für die Umwelt schädliche Grase bzw. radioaktive !Teile nach außen treten können, ohne daß dies bemerkt wird. Auch könnten Durchführungen, deren Dichtigkeit bei normalem Betrieb unbedeutend, im Katastrophenfall aber entscheidend ist, z.B. bei Schutzbehältern von Atom-Reaktoren, lange Zeit schon vorher undicht geworden sein, ohne daß dies in Ermangelung geeigneter Prüfmöglichkeiten bemerkt wird.an often quite large number of bushings in large containers, e.g. in atomic beactors, is no longer possible without further ado is to determine or localize leaks. There would therefore be the risk that the inside of the container for grasses or radioactive parts harmful to the environment can escape without being noticed. Implementations, whose tightness is insignificant in normal operation, but is crucial in the event of a disaster, e.g. in the case of protective containers of atomic reactors, have already been leaking for a long time without this due to a lack of suitable testing facilities is noticed.
Aufgabe der vorliegendezi Erfindung ist eine Elektrodurchführung der oben beschriebenen Art, die so beschaffen ist, daß sie sowohl unmittdbar naoh dem Einbau, als auch in beliebigen Zeitabständen im laufenden Betrieb auf ihre Dichtigkeit und damit Funktionssicherheit überprüft werden kann.The object of the present invention is an electrical feedthrough of the type described above, which is such that it can be used both immediately after installation and at any time can be checked for leaks and thus functional reliability during operation.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Rohr aus Stahl beidseitig mit je einer ein- odtr mejarpoligen scheibenförmigen Durchführung vakuumdicht verschlossen und ein Stutzen vorgesehen ist, durch welchen das Innere des Rohres evakuierbar ist und an welchem Vorrichtungen zum Messen der Werte des Unterdruckes anschließbar sind.This object is achieved in that a Steel tube on both sides with a single or a triple pole disk-shaped implementation closed vacuum-tight and a connecting piece is provided through which the interior of the tube Can be evacuated and to which devices for measuring the values of the negative pressure can be connected.
Die Erfindung wird an Hand der Zeichnung, in welcher ein Ausführungsbeispiel schematisch dargestellt ist, näher erläutert.The invention is based on the drawing, in which an embodiment is shown schematically, explained in more detail.
Die Durchführung gemäß dieser Erfindung besteht aus einem Rohrstück 1 au» Stahl, das in die Behälterwandung 2 eingeschweißt oder «it ihr verflanscht werden kann, auf dessen beiden EndenThe implementation according to this invention consists of a piece of pipe 1 made of steel, which can be welded into the container wall 2 or flanged to it, on both ends
109852/0269109852/0269
je eine Durchführung 3 der bisher benutzten Art aufgeschweißt oder aufgeflanscht ist. Die Pole 4t 5 der beiden Abschlußstücke sind im Inneren des Rohres, parallel zu dessen Achse, elektrisch miteinander verbunden. Der Aufbau kann natürlich auch so erfolgen, daß die beiden Abschlußdurchführungen aus Vollmaterial so herausgearbeitet werden, daß öle auf beiden Seiten Rohrstutzen aufweisen, die miteinander verschweißt werden können. Das Innere dieses von zwei scheibenförmigen Durchführungen 5 abgeschlossenen Rohres 1 läßt sich mn mittels eines am Rohr 1 oder an einer Durchführungsseite angebrachten Stutzens 6 evakuieren und mit Hilfe Üblicher Vakuummeßmethoden auf Dichtigkeit prüfen. Die Meßvorrichtungen werden an dem Anschlußstück angeschlossen. Dabei ist es auch möglich, durch Verbinden aller am Behälter vorhandenen oder einer Gruppe von Durchführungen mittels eines Rohrsystems eine laufende Betriebsüberwaohung durchzuführen.one implementation 3 of the type previously used is welded or flanged on. The poles 4t 5 of the two terminators are electrically connected to one another inside the pipe, parallel to its axis. The structure can of course also be done in such a way that that the two final bushings are worked out of solid material so that oil on both sides pipe sockets have that can be welded together. The inside of this of two disk-shaped bushings 5 The closed tube 1 can be evacuated by means of a connector 6 attached to the tube 1 or to a bushing side and check for leaks using standard vacuum measuring methods. The measuring devices are attached to the connector connected. It is also possible by connecting all the bushings present on the container or a group of bushings to carry out ongoing operational monitoring by means of a pipe system.
Entweichen z.B. bei Atom-Reaktoren radioaktive Teilchen durch Undichtigkeiten der inneren Durchführung ins evakuierte Innere des Rohrstutzens, so ,lassen sich diese mit einem Geigerzählrohr 7 unmittelbar im Inneren des Stutzens 6 oder an einer anderen Stelle des beschriebenen Rohrsysteme ohne weiteres nachweisen. Die eine Zuleitung 9 zum Geigerzählrohr wird ebenfalls wie die anderen Leiter durchgeführt.In nuclear reactors, for example, radioactive particles escape into the evacuated interior through leaks in the internal duct of the pipe socket, so, these can be measured with a Geiger counter tube 7 directly in the interior of the nozzle 6 or at another point of the pipe systems described without further notice. One feed line 9 to the Geiger counter tube is also passed through like the other conductors.
109852/0259109852/0259
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEJ0032350 | 1966-11-26 | ||
| DEJ0032350 | 1966-11-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1640495A1 true DE1640495A1 (en) | 1971-12-23 |
| DE1640495B2 DE1640495B2 (en) | 1973-04-26 |
| DE1640495C3 DE1640495C3 (en) | 1976-07-22 |
Family
ID=
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237336A (en) * | 1978-01-16 | 1980-12-02 | Kostjukov Nikolai S | Device for passing electrical and power installation conductors through protective shell separating clean zone from contaminated one and method of assembling same |
| EP2073216A1 (en) | 2007-12-17 | 2009-06-24 | Schott AG | Electrical execution module and method for its production |
| US9577416B2 (en) | 2014-08-14 | 2017-02-21 | Schott Ag | Electrical feed-through and the use thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4237336A (en) * | 1978-01-16 | 1980-12-02 | Kostjukov Nikolai S | Device for passing electrical and power installation conductors through protective shell separating clean zone from contaminated one and method of assembling same |
| EP2073216A1 (en) | 2007-12-17 | 2009-06-24 | Schott AG | Electrical execution module and method for its production |
| US7927139B2 (en) | 2007-12-17 | 2011-04-19 | Schott Ag | Electrical leadthrough module and method for production thereof |
| US9577416B2 (en) | 2014-08-14 | 2017-02-21 | Schott Ag | Electrical feed-through and the use thereof |
| DE102015215384B4 (en) | 2014-08-14 | 2023-08-24 | Schott Ag | Electrical bushing and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| AT273317B (en) | 1969-08-11 |
| GB1140637A (en) | 1969-01-22 |
| DE1640495B2 (en) | 1973-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |