Ecolab USA Inc.

Ecolab Inc.

Karl Helminger

Ralf Krack

Claudia Caussin De Schneck

Rudolf Albrecht

Albert Haberlander

Ludger Grunwald

Hartmut Forster

Robert Najman

Joachim Sauter

Ralf Schuster

Anna Burczek

Hubert De Roquefeuil

Ralph Holzner

The invention refers to a fouling detection setup (I) and method for determining the amount of fouling () of surfaces () of fluid () treating devices () and/or internal functional components () of such devices, which are exposed to said fluid and are subjected to fouling. Fouling detection setups and methods are useful for monitoring the amount of fouling of surfaces, e.g. heat-transfer surfaces and also for monitoring the cleaning procedure of such fluid treating devices and/or internal functional components of such devices. According to the invention the detection setup (I) comprises at least one first sensor (), with means () for measuring the optical transparency T and/or electrical conductive conductivity Q of said fluid (). The Sensor includes at least one sensitive area () that is located nearby and/or within said surfaces () and wherein said area is at least temporarily exposed to said fluid ().

Fouling detection setup and method to detect fouling

The invention relates on an oval gear meter for volume flow measurement comprising a housing with an oval gear chamber with a fluid inlet and a fluid outlet, a pair of oval gear wheels positioned in the chamber and together forming an intermeshing or non-intermeshing involute toothing, and a contactless magneto-reactive sensor means positioned outside of the chamber. At least one of the oval gear wheels is provided with at least one permanent magnet to form a trigger wheel. The sensor means is positioned in an appropriate position relative to the trigger wheel so that the sensor means is adapted to measure the rotation of the oval gear wheels by measuring the rotation of the trigger wheel. The trigger wheel is provided with a permanent magnet that generates a generally homogeneous magnetic field along one axis of symmetry of the trigger wheel so that the magnetic field is generally symmetrical relative to the rotational axis of the trigger wheel. The sensor means is designed as a GMR-spin valve sensor means and is positioned generally concentrically relative to the rotational axis of the trigger wheel.

Oval gear meter

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Ainring, Germany

Karl Helminger