CONSTANT DIFFERENTIAL PRESSURE FLOWMETER OF ROTAMETER TYPE WITH REMOTE TRANSMISSION OF FLOW RATE Russian patent published in 2023 - IPC G01F1/34 

FIELD: measurement technology.

SUBSTANCE: invention relates to the measurement of gas flow rates produced from gas condensate and oil wells. A constant differential pressure flowmeter of the rotameter type with remote transmission of the flow rate includes a cylindrical microwave resonator filled with a low-loss dielectric and having a hole in the centre for flow passage, a coaxially mounted rotameter including a conical cavity and a float, as well as a set of electronic equipment that allows determining the resonant frequency of the microwave resonator, proportional to the gas flow, characterized in that the float is made in the form of a cylindrical tube made of dielectric with a metal lower part, while the rotameter is installed under the resonator, which is designed to be excited by vibrations of the type E₀₁₀.

EFFECT: expansion of the range of measured flow rates.

1 cl, 4 dwg