DESIGN OF A NEW ULTRASONIC HORN FOR VISCOSITY REDUCTION OF HEAVY OIL
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- 英文论文题名：DESIGN OF A NEW ULTRASONIC HORN FOR VISCOSITY REDUCTION OF HEAVY OIL
- 论文作者：Yan YANG ; De-long XU ; Xiu-ming WANG
- 英文论文作者：Yan YANG ; De-long XU ; Xiu-ming WANG ; Institute of Acoustics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：Institute of Acoustics, Chinese Academy of Sciences;
- 英文论文关键词：Ultrasonic horn ; Industrial prototype ; Simulation ; Viscosity reduction ; Engineering prototype
- 会议召开时间：2016-10-21
- 会议录名称：2016年全国压电和声波理论及器件应用研讨会论文摘要集
- 英文会议录名称：Abstract Book of 2016 Symposium on Piezoelectricity, Acoustic Waves and Device Applications
- 语种：英文
- 分类号：TE35
- 学会代码：AGLU
- 会议名称：2016年全国压电和声波理论及器件应用研讨会
- 会议地点：中国陕西西安
- 主办单位：中国力学学会、中国声学学会、IEEE UFFC分会
- 学会名称：中国力学学会
- 页数：2
- 文件大小：116k
- 原文格式：D
- 会议级别：全国
摘要
Background, Motivation and Objective With the development of economy, the demand for oil and other energy sources is growing. Especially over the past decade, the demand for oil and natural gas is increasing with the rate of 1.8% per year. Due to the reduction of oil resources in the world, the exploitation of heavy oil, extra-heavy oil and the high pour point oil is becoming more and more important. However, the high-density, high pour point, and poor mobility characteristics of the extra-heavy oil and the high pour point oil make the exploration difficult. Therefore, how to reduce the viscosity of the extra-heavy oil and reduce the pour point of high pour point oil, so that improving their liquidity at room temperature, is of great important for exploration and transportation. Ultrasonic viscosity reduction is a physical viscosity reduction technique, using the physical effect, such as high temperature, high pressure and vibration generated by acoustic cavitation to accelerate or change the chemical reactions. Using the high-power ultrasonic horn to generate acoustic energy(mainly the ultrasonic cavitation, thermal effect and mechanical effect) to reduce the viscosity of heavy oil is a effective method. The feasibility of this technique in experimental has been already verified, but the researches are mostly limited in the laboratory. The transducer engineers have done a lot of research work and develop a number of design theory about theoretical calculation and engineering design on the high-power sandwich piezoelectric ultrasonic horn. But until now, the high-power ultrasonic horn used in the production line is still immature. Low temperature resistance, small-scale of batch processing and low working intensity are the main restrictions. Statement of Contribution/Methods Based on the basic principle of the sandwich piezoelectric transducer, a high-power ultrasonic horn which can be used for viscosity reduction of heavy oil and pour point reduction of crude oil with high pour point was proposed and designed. The basic frequency of the horn is 16.8 KHz, and the input electrical power is 1KW. It can be work continuously at 100℃ environment on the industrial scale. Firstly, according to the working environment, the author designed the modal of the ultrasonic horn. And based on the equivalent circuit method and the transfer matrix method, the parameters of the horn to meet the resonant frequency was calculated. Secondly, the best work mode and work frequency is determined by modal analysis and harmonic response analysis using the finite element simulation software ANSYS. And According to the simulation, a prototype was made and measured by an impedance analyzer. Results By modal analysis and harmonic response analysis, the stress distribution and radiation amplitude is calculated. According to the principle of working for a long time at a high temperature, the best work mode and work frequency is determined. The theory analysis is good agreement with the simulation calculation. Discussion and Conclusions The result shows that this high-power ultrasonic horn is expected to be applied on the industrial scale in viscosity reduction of heavy oil and ultrasonic sludge disintegration. The horn can be work continuously for a long time at high temperature.
Background, Motivation and Objective With the development of economy, the demand for oil and other energy sources is growing. Especially over the past decade, the demand for oil and natural gas is increasing with the rate of 1.8% per year. Due to the reduction of oil resources in the world, the exploitation of heavy oil, extra-heavy oil and the high pour point oil is becoming more and more important. However, the high-density, high pour point, and poor mobility characteristics of the extra-heavy oil and the high pour point oil make the exploration difficult. Therefore, how to reduce the viscosity of the extra-heavy oil and reduce the pour point of high pour point oil, so that improving their liquidity at room temperature, is of great important for exploration and transportation. Ultrasonic viscosity reduction is a physical viscosity reduction technique, using the physical effect, such as high temperature, high pressure and vibration generated by acoustic cavitation to accelerate or change the chemical reactions. Using the high-power ultrasonic horn to generate acoustic energy(mainly the ultrasonic cavitation, thermal effect and mechanical effect) to reduce the viscosity of heavy oil is a effective method. The feasibility of this technique in experimental has been already verified, but the researches are mostly limited in the laboratory. The transducer engineers have done a lot of research work and develop a number of design theory about theoretical calculation and engineering design on the high-power sandwich piezoelectric ultrasonic horn. But until now, the high-power ultrasonic horn used in the production line is still immature. Low temperature resistance, small-scale of batch processing and low working intensity are the main restrictions. Statement of Contribution/Methods Based on the basic principle of the sandwich piezoelectric transducer, a high-power ultrasonic horn which can be used for viscosity reduction of heavy oil and pour point reduction of crude oil with high pour point was proposed and designed. The basic frequency of the horn is 16.8 KHz, and the input electrical power is 1KW. It can be work continuously at 100℃ environment on the industrial scale. Firstly, according to the working environment, the author designed the modal of the ultrasonic horn. And based on the equivalent circuit method and the transfer matrix method, the parameters of the horn to meet the resonant frequency was calculated. Secondly, the best work mode and work frequency is determined by modal analysis and harmonic response analysis using the finite element simulation software ANSYS. And According to the simulation, a prototype was made and measured by an impedance analyzer. Results By modal analysis and harmonic response analysis, the stress distribution and radiation amplitude is calculated. According to the principle of working for a long time at a high temperature, the best work mode and work frequency is determined. The theory analysis is good agreement with the simulation calculation. Discussion and Conclusions The result shows that this high-power ultrasonic horn is expected to be applied on the industrial scale in viscosity reduction of heavy oil and ultrasonic sludge disintegration. The horn can be work continuously for a long time at high temperature.
Background, Motivation and Objective With the development of economy, the demand for oil and other energy sources is growing. Especially over the past decade, the demand for oil and natural gas is increasing with the rate of 1.8% per year. Due to the reduction of oil resources in the world, the exploitation of heavy oil, extra-heavy oil and the high pour point oil is becoming more and more important. However, the high-density, high pour point, and poor mobility characteristics of the extra-heavy oil and the high pour point oil make the exploration difficult. Therefore, how to reduce the viscosity of the extra-heavy oil and reduce the pour point of high pour point oil, so that improving their liquidity at room temperature, is of great important for exploration and transportation. Ultrasonic viscosity reduction is a physical viscosity reduction technique, using the physical effect, such as high temperature, high pressure and vibration generated by acoustic cavitation to accelerate or change the chemical reactions. Using the high-power ultrasonic horn to generate acoustic energy(mainly the ultrasonic cavitation, thermal effect and mechanical effect) to reduce the viscosity of heavy oil is a effective method. The feasibility of this technique in experimental has been already verified, but the researches are mostly limited in the laboratory. The transducer engineers have done a lot of research work and develop a number of design theory about theoretical calculation and engineering design on the high-power sandwich piezoelectric ultrasonic horn. But until now, the high-power ultrasonic horn used in the production line is still immature. Low temperature resistance, small-scale of batch processing and low working intensity are the main restrictions. Statement of Contribution/Methods Based on the basic principle of the sandwich piezoelectric transducer, a high-power ultrasonic horn which can be used for viscosity reduction of heavy oil and pour point reduction of crude oil with high pour point was proposed and designed. The basic frequency of the horn is 16.8 KHz, and the input electrical power is 1KW. It can be work continuously at 100℃ environment on the industrial scale. Firstly, according to the working environment, the author designed the modal of the ultrasonic horn. And based on the equivalent circuit method and the transfer matrix method, the parameters of the horn to meet the resonant frequency was calculated. Secondly, the best work mode and work frequency is determined by modal analysis and harmonic response analysis using the finite element simulation software ANSYS. And According to the simulation, a prototype was made and measured by an impedance analyzer. Results By modal analysis and harmonic response analysis, the stress distribution and radiation amplitude is calculated. According to the principle of working for a long time at a high temperature, the best work mode and work frequency is determined. The theory analysis is good agreement with the simulation calculation. Discussion and Conclusions The result shows that this high-power ultrasonic horn is expected to be applied on the industrial scale in viscosity reduction of heavy oil and ultrasonic sludge disintegration. The horn can be work continuously for a long time at high temperature.
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