RU94037398A - Method for detecting unsealed fuel elements - Google Patents

Method for detecting unsealed fuel elements

Info

Publication number
RU94037398A
RU94037398A RU94037398/25A RU94037398A RU94037398A RU 94037398 A RU94037398 A RU 94037398A RU 94037398/25 A RU94037398/25 A RU 94037398/25A RU 94037398 A RU94037398 A RU 94037398A RU 94037398 A RU94037398 A RU 94037398A
Authority
RU
Russia
Prior art keywords
fuel elements
fuel
pressure
scanning
fuel rods
Prior art date
Application number
RU94037398/25A
Other languages
Russian (ru)
Inventor
И.А. Белов
А.С. Иванов
Original Assignee
Российский научный центр - "Курчатовский институт"
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 Российский научный центр - "Курчатовский институт" filed Critical Российский научный центр - "Курчатовский институт"
Priority to RU94037398/25A priority Critical patent/RU94037398A/en
Publication of RU94037398A publication Critical patent/RU94037398A/en

Links

Classifications

    • 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

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

FIELD: nuclear power engineering. SUBSTANCE: method involves ultrasonic scanning of fuel elements in space under test filled with water and recording of ultrasonic signals reflected from dry and wet boundaries of inner surface of fuel element cladding which are used to determine unsealed fuel elements; prior to scanning, pressure within space under test is raised to value not over maximum pressure within reactor; in addition, scanning is conducted before and after raising the pressure, and difference in recorded signals is used to determine unsealed fuel elements. EFFECT: improved effectiveness of detection of faulty fuel elements due to increasing difference between signals coming from faulty and good fuel elements; reduced time taken for inspection due to facilitated processing of recorded signals.

Claims (1)

Изобретение относится к ядерной энергетике и может быть использовано на АЭС и на других объектах, связанных с эксплуатацией ядерного топлива. Цель - увеличение эффективности обнаружения дефектных твэлов, уменьшение длительности процесса проверки. Это достигается тем, что в способе обнаружения негерметичных твэлов, включающем ультразвуковое сканирование твэлов в испытуемом объеме, заполненном водой, с регистрацией ультразвуковых сигналов, отраженных от сухой и мокрой границ внутренней поверхности оболочки твэла, и определением по ним негерметичности твэлов, перед сканированием увеличивают давление в испытуемом объеме до величины не более максимального давления в реакторе, кроме того, сканирование проводят до и после увеличивания давления и по разности регистрируемых сигналов определяют негерметичность твэлов.The invention relates to nuclear energy and can be used at nuclear power plants and other facilities associated with the operation of nuclear fuel. The goal is to increase the efficiency of detection of defective fuel elements, reducing the duration of the verification process. This is achieved by the fact that in the method for detecting leaking fuel rods, which includes ultrasonic scanning of fuel rods in a test volume filled with water, recording ultrasonic signals reflected from the dry and wet boundaries of the inner surface of the fuel rod cladding, and determining leaking leaks of fuel rods, increase the pressure before scanning the test volume to a value not exceeding the maximum pressure in the reactor, in addition, the scan is carried out before and after increasing the pressure and the difference of the recorded signals determine the leakage of the fuel rods.
RU94037398/25A 1994-09-29 1994-09-29 Method for detecting unsealed fuel elements RU94037398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94037398/25A RU94037398A (en) 1994-09-29 1994-09-29 Method for detecting unsealed fuel elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94037398/25A RU94037398A (en) 1994-09-29 1994-09-29 Method for detecting unsealed fuel elements

Publications (1)

Publication Number Publication Date
RU94037398A true RU94037398A (en) 1996-10-27

Family

ID=48449426

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94037398/25A RU94037398A (en) 1994-09-29 1994-09-29 Method for detecting unsealed fuel elements

Country Status (1)

Country Link
RU (1) RU94037398A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2552526C1 (en) * 2013-11-19 2015-06-10 Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр-Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина" Heat-producing element monitoring method
RU2552839C1 (en) * 2013-12-10 2015-06-10 Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр-Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина" Fuel element test method
RU2634309C1 (en) * 2016-11-15 2017-10-25 Общество с Ограниченной Ответственностью "Инженерное Бюро Воронежского Акционерного Самолетостроительного Общества" Method of measuring helium concentration in fuel element
RU2792982C1 (en) * 2022-12-07 2023-03-28 Общество с Ограниченной Ответственностью "Инженерное Бюро Воронежского Акционерного Самолетостроительного Общества" Method for measuring helium concentration in a fuel element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2552526C1 (en) * 2013-11-19 2015-06-10 Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр-Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина" Heat-producing element monitoring method
RU2552839C1 (en) * 2013-12-10 2015-06-10 Федеральное государственное унитарное предприятие "Российский федеральный ядерный центр-Всероссийский научно-исследовательский институт технической физики имени академика Е.И. Забабахина" Fuel element test method
RU2634309C1 (en) * 2016-11-15 2017-10-25 Общество с Ограниченной Ответственностью "Инженерное Бюро Воронежского Акционерного Самолетостроительного Общества" Method of measuring helium concentration in fuel element
RU2792982C1 (en) * 2022-12-07 2023-03-28 Общество с Ограниченной Ответственностью "Инженерное Бюро Воронежского Акционерного Самолетостроительного Общества" Method for measuring helium concentration in a fuel element

Similar Documents

Publication Publication Date Title
SE7701422L (en) PROCEDURE AND DEVICE FOR DETECTING DEFECTIVE FUEL RODS IN NUCLEAR REACTOR
JPS56143951A (en) Ultrasonic flaw detection for austenite alloy steel welded steel pipe
ES8404096A1 (en) Method and device for detecting defective fuel elements in a nuclear reactor fuel assembly.
US4684493A (en) Method and device for detecting defective nuclear fuel elements
RU94037398A (en) Method for detecting unsealed fuel elements
Galvagni et al. Guided wave permanently installed pipeline monitoring system
JPH11281630A (en) Method and device for ultrasonically inspecting nuclear fuel rod
Mahaut et al. An adaptive system for advanced NDT applications using phased arrays
Amanda Clark et al. Experimental studies on the role of backfill and pipeline characteristics in the application of acoustic leak location to underground pipelines
JPH02248895A (en) Defective part judging method for heat transmission tube in steam generator
EP0131065A3 (en) Method and apparatus for ultrasonic testing of tubular goods
RU94037392A (en) Method for detecting leaky fuel elements
JPS5719652A (en) Inspection device of construction state of structure
JPH07306189A (en) Ultrasonic probe
RU2044293C1 (en) Method of checking pipe-lines
JPH046462A (en) Ultrasonic-wave flaw detecting method
JPH0513465B2 (en)
SU1138732A1 (en) Method of ultrasonic checking of article surface flaws
JP2001074702A (en) Method for inspecting tank
JPH0572188A (en) Detecting device for defect of heat exchanger thin tube and the like
RU2262757C1 (en) Method for detection of failed fuel elements
COLLACOTT Fault diagnosis/on-condition maintenance(static and dynamic nondestructive crack detection techniques)
JPS62110150A (en) Method for ultrasonic flaw detection of bolt
Patel et al. Ultrasonic testing of irradiated fuel sheathing
GROHS et al. Flaw characterization according to type, position and dimension by means of transit time-locus curves from ultrasonic tests- ALOK. II