共查询到19条相似文献,搜索用时 93 毫秒
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<正> 1 实验装置与方法 为研究表面张力梯度对不同类型塔板传质性能的影响及塔板材质的影响,本实验选择了以下四种塔板: (1)不锈钢筛孔板 相似文献
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板式塔及分离技术最新进展 总被引:2,自引:0,他引:2
本文介绍了近年来涌现出来的国内外新型精馏板式塔及其性能,阐述了板式塔技术的最新进展,同时也对提高板式塔传质效率的方法进行了分析与讨论;另外也简单地介绍了新开发的分离技术。 相似文献
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介绍一种新型小直径板式塔的结构及设计原理,与一般小直径板式塔作了相应比较,并对其实际应用情况举例说明。 相似文献
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在石油炼制工业中,各种塔设备占有重要的地位。结合塔河石化装置,对板式塔的分类及其特性进行了简单介绍,以单溢流和双溢流两种板式塔做了对比说明。其次对板式塔的裙座高度计算需要考虑的问题进行了简单阐述。同时对塔上常见工艺介质开口、人孔、仪表开口以及塔吊柱方位的设置作了相关说明。最后对敷塔管道(塔顶管道、塔体侧面管道和塔底管道)的布置以及敷塔管道支架位置设计的合理性进行了简单分析。 相似文献
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本文介绍了板式塔(筛板式)的基本结构,并分析了其流体力学性能及产生原因,为解决板式塔在丙烯酰胺生产中遇到的问题,提高塔的使用效率提供了思路. 相似文献
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本文根据E.F..MEGYESY提供的地脚螺栓和基础环的近似法,较精确法两种设计方法,结合国内实情编写,以供设计参考。 相似文献
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《溶剂提取与离子交换》2013,31(3):307-317
Abstract The hydrodynamic and mass‐transfer performance of a 75 mm diameter pulsed disc and doughnut column (PDD) and a pulsed sieve‐plate column (PSP) are presented and compared for a toluene–acetone–water system under similar operating conditions. It was found that the pulsed disc and doughnut column flooded earlier than the pulsed sieve‐plate column, indicating that the total throughput per unit cross‐sectional area through the pulsed disc and doughnut column was less. At similar operating conditions (i.e., flowrates, pulse frequency, and amplitude), the mass‐transfer performance of the pulsed disc and doughnut column was higher, and its holdup higher. The mass‐transfer performance of the PSP column, when compared at similar holdup to the PDD, was found to be higher, and so it is concluded that it is a more efficient column for this system. 相似文献
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提供了一种简单而有效的利用计算机辅助进行塔板布置的方法。给出了相应的计算内容和程序。有较好的通用性。适用于浮阀塔板和筛孔塔板。 相似文献
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针对山东华鲁恒升化工有限公司水煤浆气化炉托砖板内径尺寸变大、径向产生大量裂纹、水平变形等问题,分析了托砖板损坏的原因:①氢致裂纹;②高温腐蚀;③高温冲蚀。采取了打止裂孔、涂抹高温密封胶和高铬浇注料的应急措施,并实施了更换新托砖板,扩大托砖板内径等结构性技改方案。结果表明:开车至今,多次检查托砖板均未发现裂纹、腐蚀和变形。 相似文献
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对原有Φ14 0 0甲醇回收泡罩塔进行改造 ,利用计算机进行塔的模拟与优化 ,采用新型高效组合导向浮阀塔替代了原有塔型 ,取得了理想的效果 相似文献
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The extraction of hydrogen peroxide by means of deionized water from anthraquinone working solution via anthraquinone process was carried out in a gas‐agitated sieve plate extraction column. The effects of the superficial velocity of air, dispersed phase and continuous phase on the overall plate extraction efficiency have been investigated. The corrections for the prediction of the overall plate extraction efficiency were presented. The correction proposed to predict the overall plate extraction efficiency in the air, water, anthraquinone working solution three‐phase system agreed satisfactory with experimental data with a maximum absolute deviation of 5.6 %. A new design method for gas‐liquid‐liquid three‐phase extractors is developed based on the multistage countercurrent extraction model. The calculated data by the model agreed well with experimental data and the average relative deviation was less than 10 %. Moreover, the model was used to predict a gas‐agitated sieve plate extraction column for industrial production of hydrogen peroxide. The results show that the plate numbers of gas‐agitated sieve plate extraction column are 30–40 % less than that of liquid‐liquid sieve plate column. 相似文献
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