精餾段 的英文怎麼說
中文拼音 [jīngliùduàn]
精餾段
英文
enriching section-
Simplified model for distillation tower of air separation unit in igcc plant by comparting method
電站空分系統精餾塔的分段簡化模型The results indicate that the position of sensitive plates is located at the section of middle or upper in tower but not near by feeding plate, and the smaller reflux ratio, the closer overhead of distillation tower. accurate calculation for flash is solved using matlab, and the result is correct and reasonable. complicated multi - components distillation and crude distillation are simulated using chemcad, and results are reasonable about profiles of flow for vapor and liquid as well as temperature in the tower
數值分析的結果表明精餾塔靈敏板位置並不在進料板附近，而是位於精餾段的中上部，且迴流比愈小，愈靠近塔頂;利用matlab實現了蒸餾過程的嚴格計算，與參考值比較，結果正確、合理;藉助于chemcad進行常減壓塔的穩態模擬計算，得出了流量和溫度在塔內的分佈，經過理論分析，結果合理，可為實際生產提供參考。In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction
在研究過程中，採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷，具體結果包括如下： （ 1 ）完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試，結果發現：鉛塔燃燒室內水平方向的煙氣溫度並非均勻，而且其溫差比上下方向的溫差更大，以及鉛塔燃燒室尾部存在co未燃燼問題； （ 2 ）為了保證鉛塔煙氣系統的正常工作，對煙道系統的阻力進行了理論計算及測試分析，結果發現：鋅精餾鉛塔煙氣系統中煙囪抽力不夠，這主要是煙道結構不合理所造成的。A typical continuous fractionating column equipped with the necessary auxiliaries and containing rectifying and stripping sections is shown in fig. 21. 7
圖21 . 7所示的是一個典型的連續操作精餾塔。它配備有必要的輔助設施，包括精餾段與提餾段兩部分。Without the reflux, no rectification would occur in the rectifying section, and the concentration of the overhead product would be no greater than that of the vapor rising from the feed plate
假如沒有迴流，精餾段就無精餾作用，塔頂產品的濃度就不可能高於來自加料板的上升蒸汽的濃度。More packing section divisions in three - phase distillation are needed compared to two - phase distillation
. .兩相填料塔精餾過程需要更多的填料分段數目。Experimental results showed that the mixed solvents at the bottom and the product at the top of the column can be removed simultaneously for a long period of time in the middle - vessel batch distillation, and thus it requires a much smaller reboiler compared with a regular column
實驗結果表明，帶有中間貯罐的間歇萃取精餾過程在很長一段時間內具有塔頂采出產品，同時具有在塔底采出混和溶劑的特點，因而與常規間歇萃取精餾過程相比，帶有中間貯罐塔時間精餾技術需要的再沸器體積大大減小。3. based on the nonequilibrium model, the determination of packing section division for packed column is investigated. it is concluded that the size of packing division can be set the same as ntsm with deviation of less than 1 % for two - phase distillation. however, two times the value of packing ntsm is required for three - phase distillation under the same accuracy
研究結果表明：對于兩相填料塔精餾過程，填料分段數目可以設為與填料理論板數目相等，其誤差不超過1 ；而對於三相填料塔精餾過程，填料分段數目需設為兩倍填料理論板數目，其誤差才不超過1 。One experimental clean - energy car runs on natural gas. another uses ethanol distilled from corn. a third has a zero - emissions electric motor powered by a hydrogen fuel cell
一輛尚處于實驗階段的清潔能源汽車依靠天然氣行駛。另一輛使用從穀物蒸餾而來的酒精。第三輛則裝有由氫燃料電池提供能量的零排放發動機。分享友人