渦街流量計與孔板流量計壓力損失的比較研究

賈云飛
張濤
張清鵬

天津大學電氣與自動化工程學院,天津300072

摘　要:通過試驗對渦街流量計的壓力損失進行了研究,并與孔板流量計的壓力損失進行了比較。渦街流量計與孔板流量計使用廣泛,因此有些研究人員對兩種流量計的壓力損失進行過比較,但比較時沒有在保證兩種流量計有效流通面積相等的情況下進行,這就使最后的結果沒有說服力。在保證兩種流量計流通面積相等的條件下,對它們的壓力損失進行了比較。結果表明,孔板流量計的壓力損失與渦街流量計的壓力損失的比值并沒有一些文獻中給出的那么大。[著者文摘]


A Comparative Study about Pressure Loss of Vortex Flowmeter and Orifice Plate FlowmeterJIA Yun-fei, ZHANG Tao, ZHANG Qing-peng School of Electrical Engineering ＆ Automation, Tianjin University, Tianjin 300072, ChinaAbstract:Pressure loss of vortex flowmeter is investigated and the result of experiment is compared with that of orifice plate flowmeter. Some researchers have studied pressure losses of vortex flowmeter and orifice plate flowmeter, because they are widely used. But the results of study are not appropriate because of without an equal effective flow area about these two different flowmeters. Pressure losses of them are compared at a same flow area. As a result, their pressure loss ratio is not so much as given in some papers.[著者文摘]

Key words:Metrology; Vortex flowmeter; Orifice plate flowmeter; Pressure loss; Drag coefficient; Gas device

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