METHOD FOR PERMANENT MONITORING OF PIPELINE VALVE CONTROL CIRCUIT INTEGRITY AND SCHEME FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC F16K31/12 

FIELD: machine building.

SUBSTANCE: method for permanent monitoring of pipeline valve control circuit integrity involves monitoring mode, control mode, selection of a control circuit, generation of a signal on circuit integrity and electric control command and carrying out of valve control. Monitoring is performed by measuring the voltage at the ends of the normally open contact of a control relay for a solenoid valve by means of the telemetering module of a teleautomatic controller. Circuit integrity signal is generated by the comparison of the above voltage with the voltage value for the controller pickup threshold stored in the controller memory. Description is also given to a permanent monitoring scheme for the pipeline valve control circuit integrity.

EFFECT: carrying out of permanent monitoring of valve control circuit integrity and simultaneous control of the valve along with improved reliability of the control scheme.

2 cl, 3 dwg