Methods for monitoring wear in seat materials of valves

F - Mech Eng,Light,Heat,Weapons – 16 – K

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Details

F16K 37/00 (2006.01) G01M 3/00 (2006.01)

Patent

CA 2375520

Systems and methods are discussed that monitor wear in seat materials of a valve. One aspect of the present invention includes a system. The system includes sensors to sense the open/closed status of the valve within a desired range. The system also includes a set of counters to count each time the desired range is adjusted to characterize the valve as having the open/closed status if the valve was not within the desired range. The count of each counter is indicative of wear in seat materials of the valve. Another aspect of the present invention includes a method. The method includes determining an open/closed status of the valve within a desired range, and adjusting adaptively the desired range so as to characterize the valve as having the open/closed status if the valve was not within the desired range. Each iteration of adjusting is indicative of wear in seat materials of the valve.

L'invention concerne des systèmes et des procédés permettant de contrôler l'usure de matériaux constituant le siège d'une vanne. Selon un aspect de l'invention, un système comprend des capteurs servant à capter l'état d'ouverture ou de fermeture de la vanne à l'intérieur d'une plage souhaitée. Ce système comporte également un ensemble de compteurs servant à compter le moment de chaque réglage à la plage souhaitée, afin de déterminer que la vanne est dans un état d'ouverture ou de fermeture si elle ne se trouve pas à l'intérieur de la plage souhaitée. Le comptage de chaque compteur indique l'usure des matériaux composant le siège de la vanne. Selon un autre aspect de l'invention, un procédé consiste à déterminer un état d'ouverture ou de fermeture de la vanne à l'intérieur d'une plage souhaitée et à régler de façon adaptative cette plage souhaitée, de manière à définir que la vanne présente cet état d'ouverture ou de fermeture si elle ne se trouve pas à l'intérieur de la plage souhaitée. Chaque répétition du réglage indique l'usure des matériaux composant le siège de la vanne.

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