目前我国蒸汽流量测量大多使用标准节流孔板。用孔板测量蒸汽流量会造成巨大的压力损失,从而产生很大的能耗,且长期运行中测量精度越来越低。标准喷嘴因制造成本高、安装困难等原因不能广泛用来代替孔板。威力巴是美国VERIS公司最近几年推出的用于流体流量测量的新产品。用威力巴代替节流孔板测量蒸汽流量,可降低能耗,提高测量精度,且安装方便、费用较低,因而具有广阔的推广前景。 At present, most of our steam flow measurement using standard orifice plate. Measuring the steam flow with orifice plates can result in significant pressure losses, resulting in significant energy consumption and lower and lower accuracy in long-term operation. Standard nozzle due to high manufacturing costs, installation difficulties and other reasons can not be widely used instead of orifice. Powerbar is VERIS company in the United States in recent years introduced for fluid flow measurement of new products. Using the power bar to replace the orifice plate to measure the steam flow rate can reduce the energy consumption and improve the measurement accuracy. Moreover, the utility model has the advantages of convenient installation and lower cost, and thus has broad promotion prospect.