公开(公告)号：DE69706725D1

公开(公告)日：2001-10-25

申请号：DE69706725

申请日：1997-02-07

Applicant: FRAMATOME SA

Inventor： MICHAUT BERNARD

IPC: G01M3/02 ,  G01M3/32

公开(公告)号：FR2765324B1

公开(公告)日：1999-09-17

申请号：FR9707948

申请日：1997-06-25

Applicant: FRAMATOME SA

Inventor： MICHAUT BERNARD ,  TRUMPFF BERNARD ,  THOMAS ANDRE

IPC: G01B17/04 ,  G01B17/06 ,  G21C17/007 ,  G21D5/12

公开(公告)号：DE69317315T2

公开(公告)日：1998-10-15

申请号：DE69317315

申请日：1993-01-13

Applicant: FRAMATOME SA ,  I R S I D S N C

Inventor： SALA BEATRICE ,  GUERIN LAURENT ,  MICHAUT BERNARD

IPC: C25D3/12 ,  C25D5/00

公开(公告)号：FR2761803A1

公开(公告)日：1998-10-09

申请号：FR9704161

申请日：1997-04-04

Applicant: FRAMATOME SA

Inventor： DAVIOT JEAN ,  FAUQUE JEAN MARIE ,  SALA BEATRICE ,  BOBIN VASTRA ISABELLE ,  PAGES ANNIE ,  GUERIN LAURENT ,  MICHAUT BERNARD

IPC: F22B37/48 ,  F28G9/00 ,  G21C17/01 ,  F28G3/04 ,  F28G3/16 ,  G21C17/017 ,  G21D1/02

Abstract: Method for removing material deposits, in form of layer, from surface of circuit or nuclear reactor component comprises submitting layer to mechanical or hydraulic action so as to separate particles from the layer and take them off with a cleaning liquid; said method involving preparation of cleaning liquid dispersion containing demineralised water, at least one basic substance, and at least one dispersing agent in proportions which can regulate pH; circulation of dispersion in contact with said layer; removal of dispersion and material deposits; and filtration of dispersion to remove deposits. Also claimed is use of said method in cleaning insides of pipes in nuclear reactors.

公开(公告)号：FR2745380B1

公开(公告)日：1998-05-15

申请号：FR9602500

申请日：1996-02-28

Applicant: FRAMATOME SA

Inventor： MICHAUT BERNARD

IPC: G01M3/02 ,  G01M3/32 ,  G01M3/28 ,  F28F1/00

公开(公告)号：FR2765324A1

公开(公告)日：1998-12-31

申请号：FR9707948

申请日：1997-06-25

Applicant: FRAMATOME SA

Inventor： MICHAUT BERNARD ,  TRUMPFF BERNARD ,  THOMAS ANDRE

IPC: G01B17/04 ,  G01B17/06 ,  G21C17/007 ,  G21D5/12

Abstract: The procedure, for use especially on a heat exchanger of a pressurised water nuclear reactor steam generator, consists of emitting bundles of ultrasound waves from a series of measuring points (10) outside the heat exchanger's outer housing (2) to the tube bank casing (4). The reflected waves are collected and their measured propagation times are used to calculate the radial distances between the outer housing and inner casing and from them the degree of casing deformation. The ultrasound waves are emitted in pulses at intervals sufficient to collect the reflected waves and obtain a sufficient number of measuring points to determine precisely a deformation curve for each zone of the casing opposite a measuring point.

公开(公告)号：FR2748038B1

公开(公告)日：1998-07-24

申请号：FR9605169

申请日：1996-04-24

Applicant: FRAMATOME SA

Inventor： CARTRY JEAN PIERRE ,  MICHAUT BERNARD ,  HERTZ DOMINIQUE

IPC: C23C18/36 ,  C23C18/32 ,  F22B37/10 ,  G21C17/017