EP 2342554 A1 20110713 - IMPROVEMENTS IN THE DETECTION OF DEPOSITS COMPRISING AT LEAST ONE FERROMAGNETIC MATERIAL ON OR CLOSE TO THE EXTERNAL WALL OF A TUBE
Title (en)
IMPROVEMENTS IN THE DETECTION OF DEPOSITS COMPRISING AT LEAST ONE FERROMAGNETIC MATERIAL ON OR CLOSE TO THE EXTERNAL WALL OF A TUBE
Title (de)
VERBESSERUNGEN BEIM NACHWEIS VON WENIGSTENS EIN FERROMAGNETISCHES MATERIAL ENTHALTENDEN ABLAGERUNGEN AUF ODER IN DER NÄHE DER AUSSENWAND EINES ROHRS
Title (fr)
PERFECTIONNEMENTS À LA DÉTECTION DE DÉPÔTS COMPORTANT AU MOINS UN MATÉRIAU FERROMAGNÉTIQUE SUR OU À PROXIMITÉ DE LA PAROI EXTERNE D'UN TUBE
Publication
Application
Priority
- EP 2009062907 W 20091005
- FR 0856708 A 20081003
Abstract (en)
[origin: WO2010037869A1] The present invention relates to a method for the detection of fouling or clogging deposits comprising at least one ferromagnetic material, such as nickel, magnetite or similar material, on or close to the external wall of a tube, characterized in that it comprises at least the following steps: a magnetized source is positioned inside the tube and immobilized heightwise therein; the source is rotated about itself by being driven by means of an electric motor; and the intensity of the current drawn by said electric motor during this rotational movement is measured and the curve obtained is analysed in order to detect, and where appropriate evaluate, the clogging.
IPC 8 full level
G01N 27/72 (2006.01); G01N 27/90 (2006.01)
CPC (source: EP KR US)
G01N 27/72 (2013.01 - EP KR US); G01N 27/90 (2013.01 - KR); G01N 27/902 (2013.01 - EP US)
Citation (search report)
See references of WO 2010037869A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010037869 A1 20100408; CN 102171558 A 20110831; EP 2342554 A1 20110713; FR 2936875 A1 20100409; FR 2936875 B1 20101126; JP 2012504756 A 20120223; KR 20110083639 A 20110720; US 2011241660 A1 20111006; ZA 201102438 B 20111228
DOCDB simple family (application)
EP 2009062907 W 20091005; CN 200980139359 A 20091005; EP 09783746 A 20091005; FR 0856708 A 20081003; JP 2011529577 A 20091005; KR 20117009987 A 20091005; US 200913122133 A 20091005; ZA 201102438 A 20110401