PROCÉDÉ ET DISPOSITIF D'INSPECTION D'UN TRONÇON DE CANALISATION

    公开(公告)号:EP4300092A1

    公开(公告)日:2024-01-03

    申请号:EP23181688.5

    申请日:2023-06-27

    申请人: Luling Tech

    摘要: L'invention concerne un procédé d'inspection d'un tronçon de canalisation (T) s'étendant en dessous d'une surface (S sol ) de sol selon un axe longitudinal (Y). Le procédé comprenant les étapes suivantes :
    - enregistrer, à l'aide de magnétomètres (M 1 , M 2 , M 3 , M 4 ) agencés au-dessus de la surface de sol et du tronçon de canalisation, des premiers signaux (S 1 ), les magnétomètres étant alignés selon un axe orthogonal à l'axe longitudinal du tronçon de canalisation et parallèle à la surface de sol ;
    - générer, à l'aide d'une première bobine (C, C 1 , C 1 ') parcourue par un premier courant (I, I 1 , I 1 ')présentant au moins une première valeur (I min , I v1 ) non nulle et une deuxième valeur (I max , I v2 ) non nulle et différente de la première valeur, un premier champ magnétique additionnel (F c , F c1 , F c1 ') ;
    - enregistrer, à l'aide des magnétomètres, des deuxièmes signaux (S 2 ) ;
    - déduire des premiers et deuxièmes signaux l'existence d'au moins un défaut dans le tronçon de canalisation.

    SYSTEM AND METHOD FOR INSPECTING A SUBSEA PIPELINE
    28.
    发明授权
    SYSTEM AND METHOD FOR INSPECTING A SUBSEA PIPELINE 有权
    用于检查水下管道的系统和方法

    公开(公告)号:EP2737242B1

    公开(公告)日:2017-09-06

    申请号:EP11870499.8

    申请日:2011-07-29

    IPC分类号: F17D5/06 G01N27/85 G01N27/87

    摘要: The present invention is directed to a system and a method for inspecting a subsea pipeline. The method comprises the steps: detecting a defect along the subsea pipeline using a subsea magnetometric tomography method (MTM) module adjacent the subsea pipeline; and determining a position of the subsea MTM module, thereby determining the position of the defect. The method further comprises determining the position of the subsea MTM module relative to a surface vessel; and determining an absolute position of the surface vessel.

    摘要翻译: 本发明涉及用于检查海底管线的系统和方法。 该方法包括以下步骤:使用与海底管线相邻的海底磁测层析成像方法(MTM)模块沿着海底管线检测缺陷; 并确定海底MTM模块的位置,由此确定缺陷的位置。 该方法还包括确定海底MTM模块相对于水面船舶的位置; 并确定水面船舶的绝对位置。

    TRANSVERSE-MAGNETIZATION MAGNETIC SYSTEM FOR INTRA-PIPE DEFECTOSCOPE
    29.
    发明公开
    TRANSVERSE-MAGNETIZATION MAGNETIC SYSTEM FOR INTRA-PIPE DEFECTOSCOPE 有权
    MAGNETSYSTEM MIT TRANSVERSER MAGNETISIERUNGFÜRROHRINTERNES DEFEKTOSKOP

    公开(公告)号:EP3006932A4

    公开(公告)日:2017-04-26

    申请号:EP14893694

    申请日:2014-11-12

    IPC分类号: G01N27/87

    CPC分类号: F17D5/00 G01N27/87

    摘要: This utility model relates to the field of magnetic flaw detection, to devices for non-destructive testing of pipelines, and, in particular, to a magnetic system for an in-pipe flaw detector. The technical effect of the claimed utility model consists in decreasing mutual influence of main belts of magnetic modules and improving uniformity of magnetic field distribution in circumferential and longitudinal directions. The magnetic system for transverse magnetization having fixed magnetic modules and designed for an in-pipe flaw detector consists of two main and four additional belts of magnetic modules, which are arranged on two magnetic conductors connected with a non-magnetic insert. Each magnetic module consists of permanent magnets and wire brushes that transfer a magnetic flux into the pipeline wall. Magnetic modules that are adjacent to each other in a belt have opposite directions of a magnetic field in an interpolar space. The main poles of magnetic modules are angularly offset relative to each other. The additional belts of magnetic modules are arranged at the edges of the main belts of magnetic modules, two additional magnetic modules being arranged between the belts of main magnetic modules and serving for compensating mutual influence of a magnetic field generated by the main magnetic modules and for decreasing non-symmetry of the magnetic field, which is caused by close location of the main poles. Each additional belt of magnetic modules serving for correcting non-symmetry of the field is angularly offset relative to a main magnetic belt.

    摘要翻译: 本实用新型涉及磁性探伤领域,涉及管道无损检测装置,尤其涉及一种管道内探伤仪的磁性系统。 本实用新型的技术效果在于减少磁模块主带的相互影响,提高周向和纵向磁场分布的均匀性。 具有固定磁模块并且设计用于管内探伤仪的用于横向磁化的磁性系统由两个主模块和四个附加的磁模块带组成,这两个模块布置在与非磁性插入件连接的两个磁导体上。 每个磁性模块由永久磁铁和钢丝刷组成,可将磁通量传输到管道壁中。 在带中彼此相邻的磁模块在极间空间中具有相反的磁场方向。 磁性模块的主极相对于彼此成角度偏移。 附加的磁性模块带设置在磁性模块主带的边缘,两个附加的磁性模块设置在主要磁性模块的带之间,用于补偿主要磁性模块产生的磁场的相互影响, 减少了由于主极附近位置引起的磁场不对称性。 用于校正场的非对称性的每个附加的磁性模块带相对于主磁性带成角度地偏移。