FIELD: oil and gas industry.
SUBSTANCE: computerized control system of batch sequencing is configured for the automated operation of service valves in a delayed coking unit to perform a cycle of the coke drum. A double check of the service valve travel is used to confirm the transition to the next stage. Initial verification is provided by the use of position sensors of the valves. Secondary verification is provided by using controlled process conditions and confirming the measured conditions, consistent with the intended process conditions, to set the valve positions in a predetermined sequence in the cycle of the coke drum. The safety lock system can be integrated with the control system.
EFFECT: invention makes it possible to automate the coking process.
12 cl, 4 dwg
