Patent ID: 7504961
Filing Date: 2009-03-17
Classification: F16K,G05B,Y10T

Abstract:
1. A system for the field monitoring of an hydraulically, pneumatically, or electrically operated emergency isolation valve (EIV) device, the system comprising: a local smart valve controller for controlling, testing, and monitoring operation of the emergency isolation valve device; a local logic solver substantially adjacent to the emergency isolation valve device operatively connected to the local smart valve controller to perform the testing and monitoring of the operational characteristics of the emergency isolation valve device on a continuous basis during a valve stroke test; and a local control panel including a trouble indicator light activated when a failure of the emergency isolation valve device is automatically detected by the local logic solver, the local control panel being positioned substantially adjacent to the emergency isolation valve device and operably connected to the local logic solver for responding to the testing and monitoring of the emergency isolation valve device to control the activation of the trouble indicator light viewable by personnel in the vicinity of the local control panel, wherein the local logic solver is programmed to test for a plurality of predetermined fault conditions, which include: a valve stuck condition; a shaft broken condition; and an actuator damage condition.