CORIOLIS FLOW METER - VISCOSIMETER Russian patent published in 2020 - IPC G01F1/84 

FIELD: instrument engineering.

SUBSTANCE: invention relates to instrument-making in the field of measuring parameters of flowing liquids and can be used for continuous measurement of flow rate and viscosity of liquids with variable temperature, at high pressures, for example, for pumping of drilling, cement mortar at pressure up to 700 atmospheres. Coriolis flowmeter comprises two U-like pipes joined at the ends. On rectilinear sections of U-shaped tubes an oscillatory system is installed, which is made with possibility of excitation of oscillations of U-shaped tubes in the plane formed by longitudinal axes of rectilinear sections, and torsional oscillations around longitudinal axes of rectilinear sections of U-shaped pipes. Oscillating system and sensors are located between cutoff plates enveloping U-shaped tubes. Oscillatory system includes swinging electromagnet and eccentrics made in the form of weights removed on brackets. Coriolis flow meter is equipped with viscometer oscillation sensors, namely two pairs of electromagnetic vibration sensors are installed: first pair of vibration sensors located on rectilinear sections of U-shaped tubes, on opposite sides relative to oscillatory system; second pair of oscillation sensors located on eccentrics at different distance from longitudinal axes of straight sections of U-shaped tubes.

EFFECT: high accuracy of simultaneous measurement of flow rate and viscosity in wide ranges of working pressures and fluid temperature.

4 cl, 5 dwg