Intra-tube phase-separated-type two-phase fluid electromagnetic flow meter measuring device and method

The invention discloses an intra-tube phase-separated-type two-phase fluid electromagnetic flow meter measuring device and method. The measuring device and method are used for determining each phase flow of a two-phase fluid composed of a conductive phase such as surface water and industrial water and a non-conductive phase such as air, natural gas and oil; the device is mainly composed of a measuring pipeline, a mixer, a total flow metering device, a phase separation device, a section phase volume fraction measuring device, an electromagnetic flow meter and a signal processor; the method comprises the steps that a separation state with a clear phase boundary is formed by the adoption of an intra-tube phase separation technology, wherein the intra-tube central core is the non-conductive phase and the outer ring is the conductive phase, and the flow measuring is conducted. By the adoption of the intra-tube phase-separated-type two-phase fluid electromagnetic flow meter measuring device and method, the signal output of the electromagnetic flow meter is more stable without being influenced by the two-phase fluid types and the change of the non-conductive phase positions, and an electrode part cannot be polluted by the non-conductive phase; the phase volume fraction is easier to measure under the separation state, the errors are smaller, and the widespread application to projects is facilitated.