FIELD: machine building.
SUBSTANCE: control system consists of control valve, of valve controller, of control line, of supporting component, of two pressure gauges, of logic, of processor, and of storage for recording threshold rate of change. The valve controller consists of two pressure gauges and is connected to a pneumatic actuator of the valve and to a solenoid valve for testing the valve actuator and solenoid valve under the on-line mode. To test the solenoid valve the valve controller measures pressure at various ports of the solenoid valve by actuating the solenoid valve for a very short period of time. The valve controller determines complete operability of the solenoid valve by derivative of difference between measured pressure signals, i.e. basing on rate of change of difference of measured pressure signals in time.
EFFECT: raised reliability of system functionality.
15 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| EMERGENCY SHUTDOWN SYSTEM | 2006 |
|
RU2406102C2 |
| APPARATUS, METHOD AND PROGRAMME FOR TEST OF SOLENOIDS OF AUTOMATIC SAFETY SYSTEMS | 2010 |
|
RU2543366C2 |
| DOUBLE-ACTION WHEEL BRAKE SYSTEM | 0 |
|
SU1822393A3 |
| METHOD AND DEVICE FOR SERVICEABILITY CHECK OF PROTECTIVE DEVICES | 1998 |
|
RU2223532C2 |
| PNEUMATIC BRAKING SYSTEM FOR RAILWAY TRANSPORT WITH BRAKE RELEASE SOLENOID VALVE | 2016 |
|
RU2729871C2 |
| ENSURING DIAGNOSTIC AND/OR PROGNOSTIC OPPORTUNITIES IN PROCESS CONTROL SYSTEM | 2014 |
|
RU2675168C2 |
| FLUID-PRESSURE ACTUATED BRAKE SYSTEM FOR VEHICLES | 0 |
|
SU1505437A3 |
| DOWNHOLE SOLENOID ACTUATOR SYSTEM | 2015 |
|
RU2667890C1 |
| CONTROL DEVICE FOR LINEAR SOLENOID | 2019 |
|
RU2719336C1 |
| METHOD AND APPARATUS FOR CONTROLLING OPERATING FIELD DEVICES THROUGH PORTABLE COMMUNICATOR | 2009 |
|
RU2530256C2 |
