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1. (WO2018036781) METHOD AND APPARATUS FOR DETECTING DEPOSITS IN A PIPE SYSTEM OF AN APPARATUS

Pub. No.:    WO/2018/036781    International Application No.:    PCT/EP2017/069645
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Fri Aug 04 01:59:59 CEST 2017
IPC: G01N 22/00
G01B 7/13
Applicants: BASF SE
Inventors: WATERS, Gerrit
HENNIG, Ingolf
WAGLOEHNER, Steffen
JENNE, Eric
LAIB, Heinrich
Title: METHOD AND APPARATUS FOR DETECTING DEPOSITS IN A PIPE SYSTEM OF AN APPARATUS
Abstract:
A method for detecting deposits in a pipe system of an apparatus is proposed, wherein a fluid flows through the apparatus. The method provides for at least one microwave probe to be introduced into the pipe system in such a manner that the fluid flows towards a window (102) of the microwave probe which is transparent to microwave radiation and microwaves are coupled into the pipe system via the at least one microwave probe, wherein a reflection measurement is carried out using one or two microwave probe(s), and/or at least two microwave probes are introduced into the pipe system at a distance from one another and a transmission measurement is carried out, wherein a constriction in the pipe system section is inferred from a comparison of measurement data with a reference or with a previous measurement and the free cross section at the constriction is determined, wherein the presence of deposits is inferred from the detection of a constriction. Further aspects of the invention relate to a microwave probe for coupling microwave radiation into the pipe system of an apparatus and a measuring apparatus for carrying out the method, which measuring apparatus comprises at least one microwave probe of this type.