發(fā)布時間：2018-07-28 19:54

【摘要】：針對柴油機潤滑油被燃油稀釋的狀態(tài)監(jiān)測的問題,研究了基于紫外熒光技術的柴油機潤滑油被燃油稀釋的檢測方法,設計搭建了檢測實驗裝置。利用峰值發(fā)射波長為365nm的紫外LED作為發(fā)射光源,發(fā)射的紫外光通過400nm低通濾光片過濾后進入石英比色皿中的油樣,并激發(fā)油樣產生熒光,產生的熒光通過400nm高通濾光片過濾后,利用探測波長范圍為400~800nm的光電傳感器采集油樣的熒光信號,利用萬用表讀取油樣的熒光強度。設計開發(fā)了信號的放大和測量系統(tǒng)。高、低通濾光片的組合使用,減少了紫外光源所發(fā)射的紫外光對油樣的熒光強度測量的干擾。利用該實驗裝置,測量了潤滑油中柴油含量分別為20.3 Wt.%,10.0 Wt.%,5.0 Wt.%,2.5 Wt.%,1.5 Wt.%和0.7 Wt.%以及不含柴油的空白油樣的熒光強度,經(jīng)擬合得到柴油含量與熒光強度的方程。最后,為了檢驗該方法測量潤滑油中柴油含量的準確性,采用柴油含量為7.5 Wt.%油樣進行驗證,利用該實驗裝置,測量了驗證油樣的熒光強度,代入擬合方程,計算得到油樣中的柴油含量,結果表明通過該方法測量的油樣中柴油含量與油樣的實際柴油含量的相對誤差為0.5%,實現(xiàn)了實驗室條件下潤滑油被燃油稀釋的精確測量。
[Abstract]:Aiming at the condition monitoring of diesel oil diluted by fuel, the detection method of diesel oil diluted by fuel oil based on ultraviolet fluorescence technology is studied, and the testing experimental device is designed and built. Ultraviolet LED with a peak emission wavelength of 365nm is used as the emitting light source. The ultraviolet light emitted by the ultraviolet light is filtered through the 400nm low-pass filter and then filtered into the quartz colorimetric dish. The oil sample is stimulated to produce fluorescence, and the generated fluorescence is filtered by the 400nm high-pass filter. The fluorescence signal of oil sample is collected by photoelectric sensor with 400~800nm wavelength range, and the fluorescence intensity of oil sample is read by multimeter. A signal amplification and measurement system is designed and developed. The combination of high and low pass filters reduces the interference of ultraviolet light emitted by ultraviolet light on the fluorescence intensity measurement of oil samples. The fluorescence intensity of diesel oil in lubricating oil was measured with 20.3 Wt.10. 0 Wt.Ki 5.0 Wt. and 2.5 Wt.% and 0.7 Wt.%, as well as blank oil samples without diesel oil, respectively. The equation of diesel oil content and fluorescence intensity was obtained by fitting. Finally, in order to test the accuracy of the method for measuring diesel oil content in lubricating oil, a 7.5 Wt.% diesel oil sample was used to verify the accuracy of the method. The fluorescence intensity of the oil sample was measured and the fitting equation was used to test the fluorescence intensity of the oil sample. The results show that the relative error between the diesel content measured by this method and the actual diesel content of the oil sample is 0.5, which realizes the accurate measurement of the oil diluted by fuel under the laboratory conditions.
【作者單位】： 海軍工程大學動力工程學院;武漢理工大學能源與動力工程學院;
【基金】：國家自然科學基金項目(51309185)資助
【分類號】：O657.3;TE626.3

【相似文獻】

相關期刊論文 前4條

1 周南;;第9屆熒光方法和應用國際會議(Ⅰ)[J];分析試驗室;2006年10期

2 呂鳳婷;鄭海榮;房喻;;表面增強熒光研究進展[J];化學進展;2007年Z1期

3 張劍;李國華;彭捍東;郝殿中;;電壓調諧多級液晶濾光片的理論研究[J];光學學報;2006年12期

4 宋立濤;何杰;王華磊;韓毅昂;;液晶利奧濾光片光學特性的數(shù)值分析[J];科學技術與工程;2009年01期

相關會議論文 前2條

1 曹焱鑫;周吉;徐抒平;徐蔚青;;銀納米粒子自組裝膜的表面增強熒光[A];第十五屆全國光散射學術會議論文摘要集[C];2009年

2 劉靜;陳鈿;房喻;;環(huán)糊精修飾聚丙烯酰胺稀水溶液構象行為的熒光研究[A];中國化學會第九屆全國應用化學年會論文集[C];2005年

，

本文編號：2151409