FIELD: computer engineering.
SUBSTANCE: invention relates to automatic digital control and is intended to control systems for filling containers with liquid. According to disclosed solution level in reservoir-collector is adjusted by changing liquid flow rate of asynchronous motor rotation frequency of pumping unit by means of frequency converter. Frequency converter maintains required flow rate value set by control device. Value of flow rate is determined according to law of proportional-integral-differential (PID) control depending on level of liquid in container-collector. Method allows to protect open pipeline against freezing in winter time by adding to process of consumption of additional PID-channel by liquid temperature indicator in final part of pipeline. Method is implemented in digital control system of liquid level in container-collector.
EFFECT: high efficiency of liquid level control in container-collector with protection of open pipeline against freezing in winter time.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LIQUID LEVEL CONTROL SYSTEM IN A STORAGE TANK | 2017 |
|
RU2656113C1 |
| DIGITAL REGULATING SYSTEM OF FLUID FLUX RATE WITH CORRECTION ON LEVEL IN CAPACITY-COLLECTION | 2007 |
|
RU2348960C1 |
| DEVICE FOR PRESSURE CONTROL | 1992 |
|
RU2072548C1 |
| SINGLE-CIRCUIT DEPENDENT HEATING SYSTEM CONTROL DEVICE | 2023 |
|
RU2825177C1 |
| AUTOMATIC CONTROL SYSTEM FOR DRYING OF PELLETIZED CARBON BLACK | 0 |
|
SU1661552A1 |
| METHOD AND DEVICE FOR REGULATION OF AUTOMATIC PRESSURE CONTROL SYSTEM (APCS) IN THE MAIN PIPELINE FOR TRANSFERRING OIL PRODUCTS | 2014 |
|
RU2578297C1 |
| PRESSURE REGULATOR | 0 |
|
SU1674075A1 |
| METHOD FOR AUTOMATIC CONTROL OF TECHNOLOGICAL PROCESS FOR SUPPLY OF GAS CONDENSATE INTO MAIN CONDENSATE LINE | 2017 |
|
RU2647288C1 |
| METHOD AND SYSTEM FOR INCREASING ENERGY EFFICIENCY AND LOW-CARBON OPERATION OF INDUSTRIAL TECHNOLOGICAL UNITS USING GAS, LIQUID AND SOLID FUEL | 2022 |
|
RU2783168C1 |
| METHOD FOR OPTIMIZING PROCESS OF WASHING INHIBITOR FROM UNSTABLE GAS CONDENSATE AT LOW-TEMPERATURE GAS SEPARATION PLANTS OF OIL AND GAS CONDENSATE FIELDS IN THE NORTH OF RUSSIAN FEDERATION | 2020 |
|
RU2768436C1 |
