对于饱和蒸汽的流量测量,目前大多采用标准节流件(孔板)来进行测量。这种测量方法,在保证一定的压力温度下测量的精度很高。从流量公式G=-0.01252αεd~2(△P)~(1/2)·γ_0可知:当设计参数的压力为P_0、温度为t_0时,其重度γ为一定值γ_0。怛是,当压力温度偏离了设计值时,γ就要随着变化,这时流量测量 For the flow measurement of saturated steam, most of the current standard throttle (orifice) to be measured. This measurement method, to ensure a certain pressure and temperature measurement accuracy is high. From the flow rate equation G = -0.01252αεd ~ 2 (ΔP) ~ (1/2) · γ_0, it can be seen that when the pressure of the design parameter is P_0 and the temperature is t_0, the heavy γ has a certain value γ_0.怛 is, when the pressure temperature deviates from the design value, γ will change with the flow measurement