REAGENT FLOW DOSING AND MONITORING DEVICE Russian patent published in 2018 - IPC G01F11/00 G05D11/13 

FIELD: measuring equipment; monitoring devices.

SUBSTANCE: device for dosing and monitoring the flow of reagents is intended for dispensing liquid reagents at concentrating factories of non-ferrous metal industry, as well as in other industries. Device comprises a pressure vessel equipped with a reagent lower and upper level sensor, inlet and outlet valves, a relay controller, a computing device, and an output valve control module. When the device is operating, the reagent level in the pressure vessel varies within the upper and lower levels set by the level sensor. Device operates automatically with a period T. In this case, the change in the volume of the reagent in the pressure vessel increases or decreases by the volume V_o. With the inlet valve closed, the average flow rate Q_out of reagent, which is determined by the value of the average level of the reagent in the pressure vessel during the inlet valve closed state time t_cl, is determined by the relation Q_out=V_o/t_cl. Average value of the outlet flow rate of the reagent for the inlet valve opened state time t_o, is also equal to V_o/t_cl in view of the fact that the average value of the reagent level in the pressure vessel remains constant throughout the entire operation cycle of the device. Reagent consumption Q_out is set by the control module of the control outlet valve.

EFFECT: ensuring the function of dosing a given flow rate of the reagent and monitoring the established average outlet flow rate of the reagent.

1 cl, 2 dwg