Method for metering different medium flows through same throttling device

The invention discloses a method for metering different medium flows through the same throttling device, and a calculation correction model established by the method comprises the following steps: 1) measuring the actual energy medium flow Q measurement through the metering throttling device determined by the original design, and simultaneously measuring or giving the energy medium density rho measurement flowing through the metering throttling device; and 2) calculating actual energy medium flow data according to the energy medium density rho design of the original design through the established flow correction model Q correction = Q measurement * (rho design/rho measurement) and the correction result Q correction = Q design. Through field application, the calculation correction model is good in use effect, can be widely applied to accurate measurement of the steel EMS energy medium fluid flow, and can be accurately used for measuring the flow of different energy media by adopting a set of throttling device