一、引言蒸汽用量的正确计量,对节约能源和生产成本核算具有突出意义。目前测量蒸汽流量,普遍使用的是节流式差压计,众所周知,孔板是在特定的条件下设计的,此时流量表达式为: G=0.01251αεd~2(ΔPγ_0)~(1/2)=C′(ΔPγ_0)~(1/2)式中:G——重量流量; ΔP——孔板前后的压差; γ_0——设计工况下的饱和蒸汽重度; First, the introduction of the correct measurement of steam consumption, energy conservation and production cost accounting has outstanding significance. Current measurement of steam flow, commonly used is the throttle type differential pressure gauge, as we all know, the orifice plate is designed under specific conditions, the flow rate expression is: G = 0.01251αεd ~ 2 (ΔPγ_0) ~ (1/2 ) = C ’(ΔPγ_0) ~ (1/2) Where: G - weight flow; ΔP - differential pressure before and after the orifice; γ_0-- saturated steam saturation under design conditions;