油井电磁清蜡器中电磁-热耦合场的数值模拟  

Simulation of Electromagnetic-Thermal Coupling Field in Oil Well Electromagnetic Paraffin Cleaner

作　　者：王君莉[1] 常健[2] 王新掌[3] 

机构地区：[1]郑州华信学院机电工程学院,河南郑州451150 [2]南华大学环境保护与安全工程学院,湖南衡阳421001 [3]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《自动化技术与应用》2015年第4期71-75,共5页Techniques of Automation and Applications

基　　金：河南省高等学校重点科研项目(编号:15A470023)

摘　　要：为了减少感应加热对电磁清蜡器腔管的热蚀,提高电磁清蜡器的使用寿命,在分析油井电磁清蜡器感应加热过程的基础上,利用ANSYS的APLD语言建立了电磁清蜡器的电磁-热耦合场有限元模型。重点对油井电磁清蜡器处理腔管中的电磁—热耦合场进行了仿真分析,得出了腔管内外壁的温度分布规律。仿真结果表明:电磁感应加热5s,钢管表面温度升高至175.128℃;加热10s钢管表面温度达到了343.286℃,避免了常规电阻式加热钢管明显的温升滞后现象,体现了电磁感应加热的升温速度快的特点,20s后钢管内的温度分布比较均匀,钢管总体温度在490~569℃的范围内,钢管内壁与钢管表面温差在77.323℃以下。In order to reduce thermal erosion in tube cavity of electromagnetic paraffin cleaner by induction heating and prolong the service life of electromagnetic paraffin cleaner, the electromagnetic induction heating process of oil well electromagnetic paraffin cleaner is analyzed, Using APLD program of ANS^S, the model of electromagnetic paraffin cleaner is established. According to the simulation results of electromagnetic-thermal coupling field in tube cavity of electromagnetic paraffin cleaner, the eddy cun＇ent distribution in tube cavity is obtained. The simulation results can be illustrated as follows： the surface temperature of steel tube rises to 175.128℃ by electromagnetic induction heating for 5s, and it rises to 344.286℃ by electromagnetic induction heating for 10s. The phenomenon of temperature hysteresis by the conventional resis- tance heating can be avoided. It reflects the fast heating characteristic. After 20s, the temperature is evenly distribution in the steel tube, the temperature of steel tube is within the range of 490℃ and 569℃. The range of temperature between steel tube inside and outside is below 77.323℃.

关 键 词：电磁-热耦合 感应加热 ANSYS 数值模拟 

分 类 号：TM154[电气工程—电工理论与新技术]