Published October 10, 1980 | Version v1
Patent

Process and device for regulating an electromagnetic filter

Description

Process for regulating the operation of an electromagnetic filter and, in particular, for keeping the efficiency of the filter at a sufficiently high level irrespective of the degree of filter clogging, fluid flow rate and temperature of the fluid. The filter includes an envelope containing a filling that can be magnetized by a coil activated by a d.c. supply arranged around the envelope. The regulating process includes the following stages: - activating the coil by a current of lower intensity than that of the saturation current of the filling, - determining the pressure drop of the filter, fluid flow rate and fluid temperature, - increasing the intensity of the current activating the coil when the efficiency of the filter corresponding to the measured values drops below a given level

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Procede permettant de reguler le fonctionnement d'un filtre electromagnetique et notamment de maintenir l'efficacite du filtre a un niveau suffisant quels que soient l'etat de colmatage du filtre, la vitesse d'ecoulement du fluide et la temperature de ce fluide, le filtre comprenant une enveloppe qui contient un garnissage magnetisable sous l'effet d'un bobinage alimente par un courant continu dispose autour de l'enveloppe, le procede de regulation comprend les etapes successives suivantes: - alimentation du bobinage par un courant d'intensite inferieure a l'intensite du courant de saturation du garnissage, - mesure de la perte de charge du filtre, de la vitesse d'ecoulement du fluide et de la temperature de ce fluide, - augmentation de l'intensite du courant alimentant le bobinage lorsque l'efficacite du filtre correspondant aux valeurs mesurees est inferieure a un niveau donne

Additional details

Additional titles

Original title (French)
Procede et dispositif de regulation du fonctionnement d'un filtre electromagnetique

Publishing Information

Imprint Pagination
16 p.
IPC:
Int. Cl. B01d35/06.
IPC
Int. Cl. B01d35/06.
Patent number
FR patent document 2451212/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
12605342
Subject category
S42: ENGINEERING;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CONTROL; ELECTROMAGNETIC FILTERS
Descriptors DEC
FILTERS