METHOD AND DEVICE FOR THE REMOTE MONITORING OF MANUAL VALVES FOR FLUID SYSTEMS SUCH AS, FOR EXAMPLE, THE NUCLEAR ISLAND OF A NUCLEAR POWER PLANT

The invention relates to a method for the remote monitoring of manual valves (15) for fluid systems in the nuclear island of a nuclear power plant, a method wherein: the manual valves (15) are provided with a means (31) for detecting the open and closed positions thereof and with a first means (32)...

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Bibliographische Detailangaben
Hauptverfasser: LE RAT, GUY, GARZENNE, DANIEL, VANDER LINDEN, JEAN-JACQUES
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:The invention relates to a method for the remote monitoring of manual valves (15) for fluid systems in the nuclear island of a nuclear power plant, a method wherein: the manual valves (15) are provided with a means (31) for detecting the open and closed positions thereof and with a first means (32) for the wireless communication of signals related to the position of each valve (15); a second signal communication means (35) is provided in the vicinity of the valve; local cable networks (36, 38) are provided, enabling received signals to pass through thick walls; and a means (40) for receiving and processing the signals after passing through said walls is provided in a monitoring room. The device according to the invention can obviously apply to all fluid systems comprising manual valves, the positions of which must be remotely monitored. L'invention concerne un procédé de surveillance à distance de vannes manuelles (15) de circuits fluides dans l'îlot nucléaire d'une centrale, procédé dans lequel on équipe les vannes (15) manuelles de moyens (31) de détection de leurs positions ouverte ou fermée et de premiers moyens (32) de communication sans fil des signaux relatifs à la position de chaque vanne (15), on dispose dans les locaux des vannes des seconds moyens (35) de communication des signaux, on dispose des réseaux câblés locaux (36,38) locaux permettant aux signaux reçus de franchir des parois épaisses et on dispose dans un local de surveillance des moyens (40) de réception et de traitement des signaux après le franchissement desdites parois. Le dispositif selon l'invention peut bien évidemment s'appliquer à tous les circuits fluides comportant des vannes manuelles dont les positions doivent être surveillées à distance.