SYSTEM FOR CONTROLLING AN LNGC VRC SOLENOID VALVE BOX CAPABLE OF REDUCING A TIME TO CONNECT/DISCONNECT A CABLE AND A MATERIAL COST

摘要

PURPOSE: A system for controlling an LNGC VRC solenoid valve box is provided to reduce the length of a cable between remote I/O and a solenoid valve box by omitting an I.S barrier panel from an EER.;CONSTITUTION: A system for controlling an LNGC VRC solenoid valve box comprises a plurality of solenoid valve boxes(20), a plurality of valve positions(10), an RIO box(Remote I/O, 30'), and an AS(Integrated Automation System)(40). The solenoid valve box controls the solenoid valves. The valve position receives signals from the solenoid valve boxes, operates or stops them and receives feedback on whether the solenoid valves has been really opened or closed. The RIO box has communications and explosion preventing functions. The IAS is an integrated automated system responsible for the control of the solenoid valve.;COPYRIGHT KIPO 2012