摘要
电磁流量计是根据法拉第电磁感应定律测量导电性液体体积流量的仪表,励磁铁芯的结构是影响流量测量的关键之一。利用ANSYS有限元仿真软件,在改变铁芯结构参数的情况下,对井下集流式电磁流量计内部磁场进行仿真;把得到的仿真数据用MATLAB数学计算工具进行处理,分析流量计流道内部的磁场,对磁场的各个评价指标进行综合的权衡,进而从理论上得到最优的铁芯结构参数。仿真结果以及数据分析结果表明,在铁芯的中心角为55°~56°左右时,磁场的各个评价指标都有较好的取值。
Electromagnetic flowmeter is an apparatus which is used to measure the flowrate of conductive liquid based on Faraday′s law of induction.The structure of the excite iron corn is one of the key factors which influence the result.Inside magnetic field of the downhole basket electromagnetic flowmeter has been simulated by means of ANSYS finite element simulation software on the situation of changing the structure parameters of iron core.The optimized structural parameters of iron core in theory can be produced with sufficient analyses on inside magnetic field of flowmeter which is acquired by simulating data on MATLAB mathematics computation tool.The simulation result and data analyses show that all the indexes of magnate field will be much better when the central angle of iron core reaches about 55°～56°.
出处
《石油仪器》
2011年第1期18-20,23,共4页
Petroleum Instruments
基金
国家重大专项"复杂油气藏测井综合评价技术
配套装备与处理解释软件"中的子课题"多相流测井配套技术及成像测井技术研究"(2008ZX05020)
关键词
电磁流量计
铁芯结构参数优化
ANSYS仿真
MATLAB数据处理
electromagnetic flowmeter,the structure parameter optimize of the iron core,ANSYS simulation,MATLAB data processing
