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Research on Test Method about the Flux in Laboratory Distillation of Petroleum Analyzer

Author: LvFengJie
Tutor: ChenLiangCai；RuGengSheng
School: Huazhong University of Science and Technology
Course: Chemical Process Equipment
Keywords: Contact Image Sensor Signal processing Small flow Real-time measurement
CLC: TE622
Type: Master's thesis
Year: 2005
Downloads: 75
Quote: 0
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Abstract


The experimental instrument of the distillation of petroleum products is an important instrument to detect oil performance, widely used in the petroleum, chemical industry, railway industry. The prevalence of existing petroleum products distillation experimental instrument manual measurement accuracy is not high measurement reliability by human factors shortcomings. With the continuous progress of science and technology, and improve the level of automation of the testing instruments has become necessary. In petroleum the product distillation experiments instrument automation transformation process, the the distillation flow of detection is a thorny issue. Because of the particularity of the measured fluid flow when the distillation experiment, traffic detection method is not applicable in this. For petroleum products distillation the experimental instrument tiny flow, differential pressure, is not filled with pipes, intermittent flow characteristics, proposed several possible minor traffic detection methods, and experimental analysis. On this basis, the design of a new real-time traffic detection system. The system uses CIS (Contact Image Sensor - contact image sensor) as an image acquisition device using the PIC16F877 MCU as the core of the control processing, high precision control is simple and low cost, to overcome the existing detection methods commonly used micro flow the deficiency of some special minute flow rate, real-time detection. In-depth understanding of the structure and working principle of the CIS and CIS detecting the transmitted light new method to obtain images of objects based on experimental analysis. Line-shaped light source lighting conditions, using the principle of optical imaging and light tracing method combined Trcepro simulation software the Guangping the light intensity distribution model and light intensity distribution curve, to obtain a transparent glass tube imaging characteristics. On this basis, the completion of the design and commissioning of a small flow of real-time detection system based on CIS, including the CIS driver module, CIS video signal processing module, single-chip control digital signal processing module, single-chip display and control module hardware circuit design and data acquisition module and data processing module, such as the preparation of the system software. Overall debugging and measurement results show that all software, hardware design basically reached the intended target, and has laid a good foundation for the transformation of petroleum products distillation experimental instrument automation. Distillation of petroleum products based on CIS flow detection system can accurately and quickly identify the small flow changes its stable performance, simple structure, strong anti-jamming capability, low power consumption, small size, low cost, and highly cost-effective. This novel method of traffic detection can be applied to other occasions detection of minimal traffic.

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CLC: > Industrial Technology > Oil and gas industry > Oil, natural gas processing industry > Petroleum refining > The composition, properties and analysis of oil
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