【摘要】：導(dǎo)向浮閥塔板具有較好的水力學(xué)和傳質(zhì)特性,廣泛應(yīng)用于各種工業(yè)塔設(shè)備中。本研究課題在矩形導(dǎo)向浮閥塔板的基礎(chǔ)上,通過在浮閥間增開篩孔,得到復(fù)合塔板CDV；在塔板CDV的液流進口處增加導(dǎo)向孔,得到復(fù)合塔板CDV-GH。在1500 mm×450mm矩形塔內(nèi),采用空氣-水體系測定了復(fù)合塔板CDV與復(fù)合塔板CDV-GH水力學(xué)相關(guān)數(shù)據(jù),采用空氣-水-二氧化碳體系測定了它們的板效率。通過對實驗數(shù)據(jù)比較發(fā)現(xiàn),在相同的液流強度和相同的閥孔動能因子條件下,復(fù)合塔板CDV-GH比復(fù)合塔板CDV具有更好的水力學(xué)特性和傳質(zhì)效率。本文測定了復(fù)合塔板CDV-GH的水力學(xué)性能,包括液面梯度、霧沫夾帶率、板壓降及漏液點孔速；測定了復(fù)合塔板CDV-GH的板效率；利用MATLAB進行擬合得到對應(yīng)的數(shù)學(xué)關(guān)聯(lián)式,為工業(yè)設(shè)計提供了依據(jù)。在某汽柴油加氫精制分餾塔的改造中應(yīng)用復(fù)合塔板CDV-GH,板壓降降低約10%,產(chǎn)品精制柴油中硫含量由原來的110μg/g減少到10 μg/g,氮含量由原來的97μg/g減少到10μg/g,節(jié)能減排效果明顯。
[Abstract]:The guide valve tray has good hydraulic and mass transfer characteristics and is widely used in various industrial tower equipment. On the basis of rectangular guide valve tray, the composite tray CDV was obtained by adding sieve holes between the floating valves, and the composite tray CDV-GH was obtained by adding a guide hole at the inlet of the tray CDV liquid flow. In a 1500 mm 脳 450mm rectangular tower, the hydraulics data of CDV and CDV-GH were measured by air-water system, and their plate efficiency was measured by air-water-carbon dioxide system. By comparing the experimental data, it is found that under the condition of the same liquid flow intensity and the same kinetic energy factor of the valve hole, the composite tray CDV-GH has better hydraulic characteristics and mass transfer efficiency than the composite tray CDV. In this paper, the hydraulic properties of composite tray CDV-GH are measured, including liquid level gradient, entrainment rate, plate pressure drop and leakage point pore velocity, plate efficiency of composite tray CDV-GH is measured, and the corresponding mathematical correlation is obtained by MATLAB fitting. It provides the basis for industrial design. In the revamping of a gasoline and diesel hydrofining fractionator, the plate pressure drop is reduced by about 10%, the sulfur content in refined diesel oil is reduced from 110 渭 g / g to 10 渭 g / g, the nitrogen content is reduced from 97 渭 g / g to 10 渭 g / g, and the effect of energy saving and emission reduction is obvious.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TQ053.5

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