摘要
基于夹心式压电换能器基本原理,设计了一种可用于井口重油降粘和高凝油降凝的工业规模应用的大功率压电超声换能器,其工作频率为16.86kHz,输入电功率为500W,可在100℃高温环境下长时间连续工作。首先根据工作环境需要设计了换能器模型,结合等效电路法和传输矩阵法,计算了换能器满足谐振频率条件的各部分参数;通过有限元仿真软件ANSYS对换能器进行了模态分析和谐响应分析,确定了换能器的最佳工作模态和工作频率。根据仿真模型,制作了工程样机,通过阻抗分析仪测得其实际的工作频率与仿真结果的误差为0.5%。这种大功率压电超声换能器有望在重油降粘以及超声处理工业中得到规模化应用。
Based on the basic principle of the sandwich piezoelectric transducer, a high-power ultrasonic horn, which can be used for the viscosity reduction of heavy oil and the pour-point reduction of high pour-point oil, is proposed and designed. The basic frequency of the horn is 16.8 kHz, and the input electrical power is 1 kW. It can work continuously in an environment of 100℃ on the industrial scale. Firstly, according to the working environment, the model of the ultrasonic horn is designed, and based on the equivalent circuit method and the transfer matrix method, the parameters of the horn meeting the resonant frequency condition are calculated. Secondly, the best working mode and frequency are determined by modal analysis and harmonic response analysis of the finite element simulation software ANSYS. According to the simulation, a prototype is made and measured by an impedance analyzer. Its basic frequency is in good agreement with the simulation calculation. The result shows that this high-power ultrasonic horn is expected to be applied in heavy oil viscosity reduction and ultrasonic sludge disintegration on an industrial scale.
作者
刘磊
徐德龙
杨岩
任波
曹畅
程仲富
LIU Lei;XU De-long;YANG Yan;REN Bo;CAO Chang;CHENG Zhong-fu(Engineering Technology Research Institute, Northwest Branch Company, SINOPEC, Urumuqi 830011, Xinjiang, China;Research Center for Ultrasonics and Technologies, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China;Beijing Deep Sea Drilling Measurement Engineering Technology Research Center, Beijing 100190, China)
出处
《声学技术》
CSCD
北大核心
2019年第4期470-475,共6页
Technical Acoustics
基金
国家自然科学基金项目(11474305)
中石化重大科技项目(ZDP17005)
国家科技重大专项课题(2011ZX05032-003)
国家重大科研装备研制项目(ZDYZ2012-1-07-01)资助
关键词
重油降粘
夹心式压电换能器
大功率换能器
工业规模
工程样机
viscosity reduction of heavy oil
sandwich piezoelectric transducer
high power transducer
on the industrial scale
engineering prototype
