石化设备牺牲阳极设计计算方法

Calculation Method for Sacrificial Anode Design of Petrochemical Equipment

石化设备牺牲阳极设计计算过程中,因介质电阻率较低,最终计算重量多由设计使用寿命公式推算得出。计算公式中各参数取值受介质温度、内涂层厚度等影响,且参数取值对牺牲阳极计算重量影响较大。通过研究,总结得出了牺牲阳平均发生电流、计算电容量、阳极利用系数等参数的确定方法,并对比分析得出设计使用寿命、温度、涂层厚度等参数对最终计算结果的影响效果,提出了牺牲阳极计算结果较大时的优化调整方案。

During the calculation of sacrificial anode for petrochemical equipment,due to the low dielectric resistivity,the final weight is calculated by the design life formula.The value of parameter in the calculation formula is affected by the medium temperature and the thickness of the internal coating.The value of parameter has a great influence on the calculated weight of sacrificial anode.Through research,this paper summarizes the determination methods of parameters such as average generating current,calculated capacitance,and anode utilization factor.This paper also compares and analyzes the effects of design life,temperature,coating thickness and other parameters on the final calculation results.At the same time,this paper puts forward the optimization adjustment scheme when the calculation result of sacrificial anode is large.