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DE1059583B - Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors - Google Patents

Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors

Info

Publication number
DE1059583B
DE1059583B DEL27826A DEL0027826A DE1059583B DE 1059583 B DE1059583 B DE 1059583B DE L27826 A DEL27826 A DE L27826A DE L0027826 A DEL0027826 A DE L0027826A DE 1059583 B DE1059583 B DE 1059583B
Authority
DE
Germany
Prior art keywords
leaks
fuel elements
detection
damage
nuclear reactors
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.)
Pending
Application number
DEL27826A
Other languages
German (de)
Inventor
Dr Phil Eberhard Steudel
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL27826A priority Critical patent/DE1059583B/en
Publication of DE1059583B publication Critical patent/DE1059583B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/002—Detection of leaks
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Description

Verfahren zum Nachweis von Undichtigkeiten in den Umhüllungen der Brennstoffelemente von Kernreaktoren Beim Betrieb von Kernreaktoren ist es wichtig, Schäden in der Umhüllung der Brennstoffelemente frühzeitig zu erkennen. Für den Nachweis solcher Schäden wird erfindungsgemäß die Änderung der Torsionsspannung der Umhüllungen benutzt. Stabför-Inige Brennstoffelemente werden so in einen Reaktor eingebaut, daß sie während des Betriebes ständig unter Torsionsspannung stehen. Das kann beispielsweise durch eine Verdrehung der unteren oder oberen Einspannung der mit Umhüllungen versehenen Brennstoffelementstäbe bewirkt werden. Durch bekannte Meßmethoden, beispielsweise durch Dehnungsmeßstreifen, wird die Spannung der tordierten Stäbe laufend überwacht. Die Umhüllungen der Brennstoffelemente werden zweckmäßig so bemessen, daß sie den größten Teil der Torsionsspannung aufnehmen. Procedure for the detection of leaks in the casings of the Fuel elements of nuclear reactors In the operation of nuclear reactors it is important: Detect damage in the envelope of the fuel elements at an early stage. For the According to the invention, evidence of such damage is the change in the torsional stress of the servings. Rod-fed fuel elements are put into a reactor built in so that they are constantly under torsional stress during operation. This can be done, for example, by rotating the lower or upper clamping of the jacketed fuel element rods. By acquaintances Measuring methods, for example using strain gauges, the tension of the twisted Staff constantly monitored. The envelopes of the fuel elements are expedient dimensioned so that they absorb most of the torsional stress.

Claims (1)

Tritt während des Betriebes ein Schaden, z. B. eine Undichtigkeit, ein Bruch oder ein Korrosionsschaden, auf, so wird sich dieser durch eine Änderung der Torsionsspannung bemerkbar machen. überwacht man laufend den Spannungszustand aller Brennstoff stäbe, so läßt sich leicht ein Schaden an deren Umhüllung nachweisen. Somit können rechtzeitig, bevor das defekte Brennstoffelement größeren Schaden im Reaktor angerichtet hat, Maßnahmen ergriffen werden PATENTANspRucH: Verfahren zum Nachweis von Undichtigkeiten in den Umhüllungen der Brennstoffelemente von Kernreaktoren, dadurch gekennzeichnet, daß die Änderung der Torsionsspannung der Umhüllung der Brennstoffelemente zum Nachweis von Undichtigkeiten in dieser Umhüllung benutzt wird.If damage occurs during operation, e.g. B. a leak, a breakage or corrosion damage, this will be affected by a change make the torsional stress noticeable. one constantly monitors the state of tension of all fuel rods, it is easy to detect damage to their envelope. Thus, in good time, before the defective fuel element major damage in the Reactor has wreaked havoc, measures are to be taken. PATENT APPLICATION: Process for Detection of leaks in the coverings of the fuel elements of Nuclear reactors, characterized in that the change in torsional stress of the envelope of the Fuel elements used to detect leaks in this envelope will.
DEL27826A 1957-06-08 1957-06-08 Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors Pending DE1059583B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL27826A DE1059583B (en) 1957-06-08 1957-06-08 Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL27826A DE1059583B (en) 1957-06-08 1957-06-08 Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors

Publications (1)

Publication Number Publication Date
DE1059583B true DE1059583B (en) 1959-06-18

Family

ID=7264306

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL27826A Pending DE1059583B (en) 1957-06-08 1957-06-08 Method for the detection of leaks in the envelopes of the fuel elements of nuclear reactors

Country Status (1)

Country Link
DE (1) DE1059583B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176767B (en) * 1959-09-04 1964-08-27 Atomic Energy Authority Uk Device for displaying a change in shape of the shell of a nuclear reactor fuel element
DE1179312B (en) * 1959-12-29 1964-10-08 Atomic Energy Authority Uk Device for detecting leaks in the shell of nuclear reactor fuel assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176767B (en) * 1959-09-04 1964-08-27 Atomic Energy Authority Uk Device for displaying a change in shape of the shell of a nuclear reactor fuel element
DE1179312B (en) * 1959-12-29 1964-10-08 Atomic Energy Authority Uk Device for detecting leaks in the shell of nuclear reactor fuel assemblies

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