FIELD: instrument making.
SUBSTANCE: flow metre includes the following: velocity measurement unit of gas-liquid two-phase three-component flow, density measurement unit of this flow and velocity computing unit of flow of each phase; at that, density measurement unit includes mixed fluid extraction unit; at that, the latter includes pressure difference generator installed in pipeline through which three-component flow passes, pair of connecting pipes connected to upstream and downstream the sides of pressure difference generator. Gas-liquid extraction tank serves as the place using the pressure change between inlet and outlet sides of pressure difference generator for forced mixing of some portion of three-component flow; gas-liquid unloading pipe is connected to gas-liquid extraction tank and intended to unload the gas containing the liquid phase.
EFFECT: higher measurement accuracy of density.
3 cl, 11 dwg
