L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Christophe Charrier

Dominique Jouvaud

Patrice Ollivier

Xavier Vigor

Antoine Willemot

Patrick Dilly

Nicolas Duflot

V&eacute;ronique Dulphy Vigor

Process and device for controlling at least two production units

The invention relates to a device for measuring the fluid consumption of a user over a given measurement time, including a volumetric meter ( ) connected to a central information processing unit ( ). This unit is designed to take a series of readings at successive intervals in said measurement time, so as to compare each reading with a reference value that corresponds to a predetermined nominal consumption threshold and thus from this deduce the quantity consumed over said measurement time corresponding to consumption with a flow rate higher than the nominal consumption threshold.

Device for measuring the fluid consumption of a user over a given time

The plant for producing a product stream includes, mounted in series, several modules adapted to perform successive and distinct elementary treatments. At least two elementary treatment modules each include at least two treatment apparatuses mounted in parallel. The plant furthermore includes a device for controlling the various treatment apparatuses as a function of the product stream desired at the outlet of the plant. The control device includes sensors for measuring at least two variables representative of the product stream, and a fuzzy logic regulator adapted for controlling, in at least two distinct treatment modules, at least two treatment apparatuses of the same module, on the basis of the same measured representative variable.

Production plant and process comprising several treatment steps

Growing community of inventors

Asnieres sur Seine, France

Christophe Charrier