紧密纺与落棉组合系统的设计及分析
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摘要
为了减少能量损耗且同时满足紧密纺和落棉系统的除尘要求,将单节48锭紧密纺风系统和小型化落棉风系统组合设计为一个风系统.通过试验对组合系统进行验证,并采用三维建模软件PROE与CFD软件FLUENT对系统进行三维数值模拟,分析了组合系统内部流场的风速、压力和流量的变化情况.结果表明:紧密纺系统测点平均风速为9 m/s,达到了紧密纺系统孔口风速要求;落棉系统测点平均风速为7.8 m/s,与落棉系统孔口风速要求相差了0.2 m/s,误差仅为2.5%,在误差允许范围内,说明该组合系统设计合理;风道内部风速和压力分布相对稳定,说明该组合系统稳定性较强,符合流体力学节点压力相等的设计理论.
In order to reduce energy loss and meet their own cleaning requirements of the compact spinning and noil system,the single section 48 spindle compact spinning wind system and miniature noil wind system are combined to design as a wind system. The combinatorial system is verified by the test and simulated by using 3 D modeling software PROE and CFD software FLUENT, the changes of internal flow field of velocity, pressure and flow for the combinatorial system are analyzed. The results show that the average wind speed at the test points of the compact spinning system is 9 m/s, which meets the orifice wind speed requirements of the compact spinning system. The average wind speed at the test points of the noil system is 7.8 m/s, which has a difference of 0.2 m/s from the orifice wind speed requirements of the noil system, the error is only 2.5%,within the error range, it shows that the design of the combinatorial system is reasonable. The distribution of wind velocity and pressure in the interior of wind duct is relatively stable, which indicates that the combinatorial system has strong working stability and accords with the design theory of equal pressure of node in fluid mechanics.
In order to reduce energy loss and meet their own cleaning requirements of the compact spinning and noil system,the single section 48 spindle compact spinning wind system and miniature noil wind system are combined to design as a wind system. The combinatorial system is verified by the test and simulated by using 3 D modeling software PROE and CFD software FLUENT, the changes of internal flow field of velocity, pressure and flow for the combinatorial system are analyzed. The results show that the average wind speed at the test points of the compact spinning system is 9 m/s, which meets the orifice wind speed requirements of the compact spinning system. The average wind speed at the test points of the noil system is 7.8 m/s, which has a difference of 0.2 m/s from the orifice wind speed requirements of the noil system, the error is only 2.5%,within the error range, it shows that the design of the combinatorial system is reasonable. The distribution of wind velocity and pressure in the interior of wind duct is relatively stable, which indicates that the combinatorial system has strong working stability and accords with the design theory of equal pressure of node in fluid mechanics.
引文
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[19]张法云,刘允光.提高FA261型精梳机吸风系统效能的措施[J].棉纺织技术,2001,29(9):569.ZHANG F Y,LIU Y G.Measures to improve the efficiency of FA261 comber suction system[J].Cotton Textile Technology,2001,29(9):569(in Chinese).
[20]THUM R.Suessen:Elite spinning system for long and short staple fibers[J].Textile World,2000(4):38-39.
[2]吴敏,谢小平.紧密纺纱线结构和织物性能的研究[J].上海纺织科技,2007,35(4):20-21.WU M,XIE X P.Study on compact yarn structure and fabric properties[J].Shanghai Textile Technology,2007,35(4):20-21(in Chinese).
[3]谢春萍,潘鹍鹏,苏旭中,等.基于FLUENT的紧密纺大风机系统流场模拟与分析[J].纺织学报,2009,30(10):130-133.XIE C P,PAN K P,SU X Z,et al.Flow simulation and analysis on FDF of compact spinning based on FLUENT[J].Journal of Textile Research,2009,30(10):130-133(in Chinese).
[4]孙一坚,沈恒根.工业通风[M].4版.北京:中国建筑工业出版社,2010.SUN Y J,SHEN H G.Industrial Ventilation[M].4th ed.Beijing:China Construction Industry Press,2010(in Chinese).
[5]蔡增基,龙天渝.流体力学泵与风机[M].5版.北京:中国建筑工业出版社,2009.CAI Z J,LONG T Y.Fluid Mechanics Pump and Fan[M].5th ed.Beijing:China Construction Industry Press,2009(in Chinese).
[6]OZDIL N,OZDOGAN E,DEMIREL A,et al.A comparative study of the characteristics of compact yarn based knitted fabrics[J].Fibres&Textiles in Eastern Europe,2005,13(2):39-43.
[7]王海彦,刘永刚.ANSYS Fluent流体数值计算方法与实例[M].北京:中国铁道出版社,2015.WANG H Y,LIU Y G.ANSYS Fluent Fluid Numerical Calculation Methods and Examples[M].Beijing:China Railway Press,2015(in Chinese).
[8]MANKODI H,CHAUDHARI S B.A new advance in spinning technology[J].Textile Asia,2003(4):33-37.
[9]李文华,苏明军.常用湍流模型及其在FLUENT软件中的应用[J].水泵技术,2006(4):39-40.LI W H,SU M J.Commonly used turbulence model and its application in FLUENT software[J].Water Pump Technology,2006(4):39-40(in Chinese).
[10]栾春华,王晓静.基于FLUENT的混流式风机整机流场数值模拟[J].机械设计与制造,2008(2):178-179.LUAN C H,WANG X J.Numerical simulation of mixed flow fan whole flow field based on FLUENT[J].Mechanical Design and Manufacturing,2008(2):178-179(in Chinese).
[11]HERBERT S,ALBERT R.Successful compact spinning process[J].International Textile Bulletin,2002(2):42-43.
[12]陆世麟,马洪才,程隆棣.苎麻气流槽聚型紧密纺纱工艺探讨[J].上海纺织科技,2012,40(3):28-30.LU S L,MA H C,CHENG L D.Ramie inspiratory groove type compact spinning technology[J].Shanghai Textile Technology,2012,40(3):28-30(in Chinese).
[13]王福军.计算流体动力学分析:CFD软件原理与应用[M].北京:清华大学出版社,2004.WANG F J.Computational Fluid Dynamics Analysis:The Principle and Application of CFD Software[M].Beijing:Tsinghua University Press,2004(in Chinese).
[14]TAYLOR A,WHITELAW J H,YIANNESKI S M.Curved ducts with strong secondary motion:Velocity measurements of developing laminar and turbulent flow[J].Journal of Fluids Engineering,1982,104(3):350-359.
[15]张喜昌,邹文林.气流槽聚型紧密纺纱系统集聚区长度设计[J].东华大学学报,2010,36(6):624-627.ZHANG X C,ZOU W L.Length design of compact spinning system of air flow channel[J].Journal of Donghua University,2010,36(6):624-627(in Chinese).
[16]ROSEN G,BARAM J.Multilayered compact ribbons obtained by centrifuge melt spinning[J].Journal of Materials Science Letters,1985(4):1258-1260.
[17]李济群,瞿彩莲.紧密纺技术[M].北京:中国纺织出版社,2006.LI J Q,QU C L.Compact Spinning Technology[M].Beijing:China Textile Press,2006(in Chinese).
[18]周道哲,庄玮,HY51型条并卷机小卷棉层粘连的原因和预防[J].纺织机械,2005(1):19-22.ZHOU D Z,ZHUANG W.The cause and prevention of cotton linkages in HY51 rolls and coiler[J].Textile Machinery,2005(1):19-22(in Chinese).
[19]张法云,刘允光.提高FA261型精梳机吸风系统效能的措施[J].棉纺织技术,2001,29(9):569.ZHANG F Y,LIU Y G.Measures to improve the efficiency of FA261 comber suction system[J].Cotton Textile Technology,2001,29(9):569(in Chinese).
[20]THUM R.Suessen:Elite spinning system for long and short staple fibers[J].Textile World,2000(4):38-39.