【摘要】：本論文設(shè)計了一種儀器用于實現(xiàn)基于近紅外透光度掃描的重油穩(wěn)定性檢測,并借助儀器深入研究了檢測過程,構(gòu)建了檢測過程透光度變化的數(shù)學(xué)模型。首先對重油穩(wěn)定性問題產(chǎn)生的原因、瀝青質(zhì)分離的過程進行了深入研究,在此基礎(chǔ)上分析了檢測方法的理論基礎(chǔ),論證了檢測方法的可行性。之后根據(jù)檢測方法要求進行了重油穩(wěn)定性檢測儀的研發(fā),包括單片機控制系統(tǒng)設(shè)計、近紅外透光度檢測系統(tǒng)設(shè)計、檢測平臺平穩(wěn)運行和精確定位解決方案、步進電機運動控制算法等。并拓展了儀器的人機交互、數(shù)據(jù)讀寫、通信等功能。完成檢測設(shè)備的研制后,本文根據(jù)檢測原理,對檢測設(shè)備進行了誤差分析和功能驗證,驗證了儀器功能的實現(xiàn),并為設(shè)備檢測精度的提高提供了改進方案。最后使用該儀器對檢測過程的透光度變化情況和粒子沉降情況進行了詳細(xì)研究。根據(jù)透光度數(shù)據(jù)估算出檢測過程的粒子沉降速度和粒子直徑分布,并將檢測過程劃分為瀝青質(zhì)分離、顆�？焖俪两怠㈩w粒干擾沉降、基本沉降完成四個階段,針對四個階段分別提出了透光度均值變化的數(shù)學(xué)模型。最后根據(jù)四個階段的數(shù)學(xué)模型,對透光度均值變化數(shù)據(jù)進行了曲線擬合,根據(jù)擬合效果驗證模型可用。并為沉降過程中瀝青質(zhì)分離過程、粒子濃度、粒子直徑的進一步研究提供了方法。
[Abstract]:In this paper, an instrument is designed to detect the stability of heavy oil based on near infrared transmittance scanning. Firstly, the cause of the problem of heavy oil stability and the process of asphaltene separation are studied in depth. On this basis, the theoretical basis of the detection method is analyzed, and the feasibility of the detection method is demonstrated. Then according to the requirements of the detection method, the research and development of the heavy oil stability detector is carried out, including the design of the single-chip microcomputer control system, the design of the near-infrared transmittance detection system, the smooth operation of the detection platform and the solution of accurate positioning. Step motor motion control algorithm and so on. And expand the instrument's man-machine interaction, data reading and writing, communication and other functions. After the development of the testing equipment, the error analysis and function verification of the testing equipment are carried out according to the detection principle, the realization of the instrument function is verified, and an improved scheme is provided for the improvement of the detection precision of the equipment. At last, the change of transmittance and particle sedimentation are studied in detail by using this instrument. According to the transmittance data, the particle settling velocity and particle diameter distribution are estimated, and the detection process is divided into four stages: asphaltene separation, particle rapid settlement, particle interference settlement, and basic settlement completion. According to the four stages, the mathematical model of the change of the mean value of transmittance is put forward. Finally, according to the mathematical model of four stages, the curve fitting of the data of the change of the mean value of transmittance is carried out, and the model is proved to be available according to the fitting effect. It also provides a method for the further study of asphaltene separation process, particle concentration and particle diameter.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE622

【參考文獻】

相關(guān)期刊論文 前10條

1 王耀寧;;淺析燃料油市場發(fā)展現(xiàn)狀[J];化工管理;2016年30期

2 高建宇;程銳涵;晁暉;王莎莎;;基于Cortex-M3的液溫檢測系統(tǒng)設(shè)計[J];數(shù)字技術(shù)與應(yīng)用;2015年08期

3 劉永梅;劉志剛;;光纖定位單元的微型步進電機速度控制優(yōu)化[J];機械與電子;2015年06期

4 王海波;;國內(nèi)燃料油供需現(xiàn)狀分析與思考[J];當(dāng)代石油石化;2015年05期

5 劉新亮;張菅;尹海亮;;瀝青質(zhì)分散劑對重質(zhì)燃料油瀝青質(zhì)分散穩(wěn)定作用研究[J];當(dāng)代化工;2014年03期

6 張志華;;均質(zhì)機在船用重質(zhì)燃油系統(tǒng)中的應(yīng)用[J];中國高新技術(shù)企業(yè);2013年34期

7 黃金珠;;中國燃料油市場現(xiàn)狀與展望[J];中外能源;2013年09期

8 吳運吾;;我國船用燃料油市場分析[J];當(dāng)代石油石化;2011年10期

9 張龍力;楊國華;闕國和;楊朝合;山紅紅;;大港常壓渣油臨氮與臨氫熱反應(yīng)過程中膠體穩(wěn)定性變化研究[J];燃料化學(xué)學(xué)報;2011年09期

10 楊超;張冬泉;;基于S曲線的步進電機加減速的控制[J];機電工程;2011年07期

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