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1.发明公开
公开(公告)号：EP1216380A1
公开(公告)日：2002-06-26
申请号：EP00964378.4
申请日：2000-09-27
申请人： Metravib R.D.S.
IPC分类号： F17D3/01
CPC分类号： G01B21/085 , F17D3/01
摘要： The invention concerns an installation for implementing a method for detecting deposit (D) likely to be formed inside a piping system (2) transporting a fluid. The invention is characterised in that the installation comprises at least a source generating (3) a thermal gradient designed to be mounted on a so-called active zone (Za) of the outer surface of the pipe, at least a sensor (7) measuring the heat flux designed to be mounted on a zone (Zm) of the outer surface of the pipe located, relative to the active zone, at a distance predetermined according to the length of the pipe, and control and monitoring means (5), connected to the generating source (3) and the measuring sensor (7) for detecting when the heat flux corresponding at least partly to the thermal gradient applied and transmitted by the pipe exceeds a predetermined threshold indicating the presence of deposit inside the pipe.
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2.发明公开
公开(公告)号：EP1254359A1
公开(公告)日：2002-11-06
申请号：EP01907731.2
申请日：2001-02-08
申请人： Metravib R.D.S.
CPC分类号： G01N9/36 , G01N11/167
摘要： The invention concerns a non-intrusive method for characterising flow perturbations of a fluid inside a cylindrical pipe (2), which consists in: using as first indicator for determining the flow perturbations the variation of the fluid pressure: by providing around the pipe, at least a clamping ring, provided with a deformation sensor sensitive to deformations to which the pipe is subjected following fluid pressure variations, by measuring the deformation variations detected by the deformation sensor, and determining the pressure variations inside the pipe on the basis of the measurements of deformation variations detected by said sensor.
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