METHOD OF CONTROLLING FLUID MEDIUM FLOW THROUGH A VALVE Russian patent published in 2019 - IPC G05D7/06 G01F1/00 G01F25/00 

FIELD: control or regulation of flow rate in fluid medium flow.

SUBSTANCE: method of controlling flow of fluid medium through valve (100), located in system (400) for fluid medium, which has flow sensor (103) located in it. Flow rate sensor (103) is used to measure flow rate Q_m fluid and compared with a predetermined threshold value Q_t of fluid medium flow rate. In case Q_m<Q_t, calibrating sensor (103), which includes the following actions: varying the opening degree of valve (100) and measuring flow rate of fluid medium using flow sensor (103), setting ratio between actual flow rate of fluid medium and degree of opening of valve (100), based on measurement results of fluid flow rate during change of opening degree of valve, and determining correction C based on set ratio. Further, valve (100) opening degree is controlled based on the fluid flow rate measurement results obtained using flow sensor (103) and corrected taking into account the above correction.

EFFECT: providing accurate control of fluid medium flow.

13 cl, 8 dwg