搅拌功率计算程序的开发
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摘要
搅拌设备的设计除应保证工艺要求外,以较小功率消耗达到搅拌目的亦是设计目标之一。搅拌器功率计算一方面解决了需要向搅拌介质提供多少功率问题,以便有效地选择电机;另一方面为搅拌器强度计算提供依据,以保证桨叶、搅拌轴的强度。因而,搅拌器功率计算是搅拌器设计中必不可少的步骤。然而搅拌器功率计算却非常繁琐。将Rushton图算法中算图曲线数据进行人工采集,利用仿射变换对采集的数据进行了修正,最后利用B样条曲线对Rushton算图参数化插值,并利用Rushton图算法与永田进治公式法的互补特性,完成了对常规叶片形状的搅拌器功率计算程序化,以达到减小搅拌器功率计算的工作量的目的。
The design of stirring equipment should not only guarantee the technological requirements,but also achieve a less power consumption to meet the stirring goals. The agitator power calculation has solved the problem of how much power need to provide to the mixing medium,so as to select the motor effectively; on the other hand,the basis is provided for the stirrer strength calculation,to ensure strength of the blade and the stirring shaft. Therefore,stirring power calculation is essential in the design process. However the agitator stirring power calculation is very complicated. The nomogram curve data of Rushton graph algorithm are artificially collected,then the collected data are corrected by affine transformation,and finally are parameterized and interpolated by the B-spline curve. Due to the complementary characteristics of Rushton graph algorithm and Nagata Shinji formula method,the mixing power on conventional vane shape is programmed to lessen the design workload.
The design of stirring equipment should not only guarantee the technological requirements,but also achieve a less power consumption to meet the stirring goals. The agitator power calculation has solved the problem of how much power need to provide to the mixing medium,so as to select the motor effectively; on the other hand,the basis is provided for the stirrer strength calculation,to ensure strength of the blade and the stirring shaft. Therefore,stirring power calculation is essential in the design process. However the agitator stirring power calculation is very complicated. The nomogram curve data of Rushton graph algorithm are artificially collected,then the collected data are corrected by affine transformation,and finally are parameterized and interpolated by the B-spline curve. Due to the complementary characteristics of Rushton graph algorithm and Nagata Shinji formula method,the mixing power on conventional vane shape is programmed to lessen the design workload.
引文
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[3]陈志平,章序文,林兴华.搅拌与混合设备设计选用手册[M].北京:化学工业出版社,2004.
[4]江建卫,冯忠绪,毛兴中.搅拌功率的计算[J].西安公路交通大学学报,2000,20(3):98-100.
[5]陈志希,谢明辉,周国忠,等.24种搅拌器的功率曲线[J].化学工程,2010,38(3):38-43.
[6]梁敬福,黄振峰,李欣欣.大型沼气厌氧池侧进式搅拌流场的数值模拟分析[J].化学反应工程与工艺,2017,33(1):82-89.
[7]方德明,陈涛,杨象岳,等.基于CFD流场分析的反应釜搅拌器结构改进[J].轻工机械,2014,32(2):95-98.
[8]肖伟,王凡宇.基于Fluent的双卧轴搅拌器数值模拟研究[J].机械研究与应用,2016(4):39-41.
[9]丁健华,马腾,陈涛,等.搅拌釜内流场三维数值模拟及功率预测[J].化工装备技术,2015(1):19-22.
[10]党林贵,郭淑雪,王定标,等.不同组合桨搅拌器搅拌特性的数值研究[J].郑州大学学报:工学版,2013,34(3):59-62.
[11]谭妍玮,张众华,刘秋生.基于Fluent的考虑旋转车轮影响的汽车外流场分析[J].四川理工学院学报:自然科学版,2015,28(4):17-21.
[12]唐克伦,张应迁,梁智权.多相流搅拌器流场数值模拟软件[J].计算机辅助工程,2011,20(1):37-41.
[13]白晓莉,唐克伦,李辉,等.基于Fluent的搅拌器三维流场数值模拟及其实验研究[J].机械工程师,2015(4):17-21.
[14]徐建航,杨翊仁.导向管底部泄流孔水力损失计算分析[J].四川理工学院学报:自然科学版,2016,29(6):44-47.
[15]李照广,张全贞,吕建.钢结构焊接的Ansys数值模拟[J].四川理工学院学报:自然科学版,2016,29(5):38-42.
[16]徐伟,杨翊仁,文华斌.高速列车通过隧道时动态数值模拟[J].四川理工学院学报:自然科学版,2015,28(5):16-20.
[17]付磊,付丽娅,唐克伦,等.基于FLUENT的管壳式换热器壳程流场数值模拟研究[J].四川理工学院学报:自然科学版,2012,25(3):17-21.
[18]陈杰.MATLAB宝典[M].3版.北京:电子工业出版社,2011.
[19]潘云鹤.计算机图形学:原理、方法及应用[M].北京:高等教育出版社,2002.
[20]朱心雄.自由曲线曲面造型技术[M].北京:科学出版社,2000.