本文選題：反應(yīng)器 + 葉輪　； 參考：《熱能動力工程》2017年S1期

【摘要】：針對微波反應(yīng)器加熱不均勻性和攪拌系統(tǒng)優(yōu)化問題,設(shè)計具有不同攪拌葉輪的小型微波釜式反應(yīng)器,采用CFD(計算流體力學(xué))方法研究不同葉輪對微波反應(yīng)器內(nèi)流動混合特征的影響規(guī)律。對簡化后的微波反應(yīng)器模型設(shè)計了3種葉輪,并對反應(yīng)器內(nèi)部的三維流場進(jìn)行數(shù)值仿真,對比分析攪拌過程中裝備不同葉輪的攪拌釜宏觀流型、速度和功耗等特點。研究結(jié)果表明:A2、A3葉輪流型發(fā)展得更好,A3在粘度高于0.015 Pa·s的介質(zhì)中更加節(jié)能,粘度達(dá)到0.065 Pa·s時,功率準(zhǔn)數(shù)比A1低50%,在遠(yuǎn)離葉輪區(qū)域的流速更高;A1在轉(zhuǎn)速高于50 r/min時更加節(jié)能,當(dāng)轉(zhuǎn)速為300 r/min時,功率準(zhǔn)數(shù)為0.16。
[Abstract]:Aiming at the problems of heating inhomogeneity of microwave reactor and optimization of mixing system, a small microwave kettle reactor with different impellers was designed.The influence of different impellers on the mixing characteristics of flow in microwave reactor was studied by using CFDs (computational fluid dynamics) method.Three kinds of impellers were designed for the simplified microwave reactor model, and the three-dimensional flow field in the reactor was numerically simulated. The characteristics of macroscopic flow pattern, velocity and power consumption of stirred kettle equipped with different impellers were compared and analyzed.The results show that the flow pattern of the impeller is better developed. When the viscosity reaches 0.065 Pa / s, the power standard number is 50% lower than that of A1, and the flow rate is higher than that of A 1 when the velocity of velocity is higher than 50 r/min. When the viscosity reaches 0.065 Pa / s, A 1 is more energy efficient when the rotational speed is higher than 50 Pa / s.When the rotational speed is 300 r/min, the power standard number is 0.16.
【作者單位】： 江南大學(xué)機(jī)械工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(21606109)
【分類號】：TE667;TQ052

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