The invention belongs to the technical field of two-phase flow measurement and relates to a double-throttling three-differential-pressure wet-gas two-phase flow measurement
system, which comprises a first throttling device and a second throttling device which are mutually connected. The first throttling device comprises a cone which is fixedly arranged in a measuring
pipe. The second throttling device is a Venturi throttling device. Pressure sampling positions are respectively arranged at the upstream and the
throat of the first throttling device. Pressure sampling positions are respectively arranged at the upstream, the
throat and the downstream of the second throttling device. The pressure sampling positions at the upstream and the
throat of the first throttling device are connected to a first
differential pressure transmitter through
external pressure guide pipes. The pressure sampling positions at the upstream and the throat of the second throttling device are connected to a second
differential pressure transmitter through
external pressure guide pipes. The pressure sampling positions at the throat and the downstream of the second throttling device are connected to a third
differential pressure transmitter through
external pressure guide pipes. The double-throttling three-differential-pressure wet-gas two-phase flow measurement
system has the characteristics of simple structure, no movable part, convenience in implementation, wide measurement range, high accuracy, high safety and reliability and the like.