【摘要】 天然气计量目前仍以差压式流量计中的孔板流量计为主。影响差压式流量计测量误差的原因非常复杂,文章从计量仪表误差、使用条件变化误差和其他因素引起误差3方面,分析了引起计量误差的主要因素,并提出了改进措施,最后提出了建议和展望了未来孔板流量计的发展方向。更多还原

【Abstract】 The measure of natural gas is still in the state of using orifice-plate flow meter of pressure difference.The causes effecting its measure error are comprehensive.The analysis through three aspects,meter error,operation condition,others Has been done.The measure of improvement is introduced.The paper also presents author’s recommendation and the development trend of orifice-plate flow meter.更多还原