网孔罗拉集聚纺纤维集聚区内气流流动状态分析  

Analysis of Air Flow Pattern in Fiber Condensing Zone of Drilled-roller Compact Spinning

作　　者：王彩华[1] 于斌[1] WANG Caihua;YU Bin(College of Materials and Textiles,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学材料与纺织学院,杭州310018

出　　处：《现代纺织技术》2021年第1期103-107,共5页Advanced Textile Technology

摘　　要：网孔罗拉集聚纺纤维集聚区构建了三维模型,采用流体计算软件Fluent模拟了气流在该三维模型内的流动状态,并基于数值模拟结果分析了气流吸聚槽始端位置对纤维集聚区内气流流动状态的影响。经分析认为当气流吸聚槽始端与牵伸钳口线对应时,在纤维集聚区内的气流流动速度较高,但气流逆纤维须丛输运方向流动;当气流吸聚槽始端设置在牵伸钳口前时,在纤维集聚区内的气流流动速度较低,但在自牵伸钳口至气流吸聚槽始端之间的纤维集聚区内,气流顺纤维须丛输运方向流动,而在自气流吸聚槽始端向前的纤维集聚区内,气流逆纤维须丛输运方向流动。A three-dimensional model of fiber condensing zone of drilled-roller compact spinning is built,Fluent(a CFD software)is employed to simulate air flow pattern of the three-dimensional model,and the effect of beginning end of air suction slot on air flow pattern in fiber condensing zone is analyzed based on the simulation results.The analysis indicates that air flows opposite to the transport direction of fiber strand at high speed in the fiber condensing zone if the beginning end of air suction slot coincides with draft nip.Air flows along the transport direction of fiber strand in the fiber condensing zone between draft nip and the beginning end of air suction slot,while opposite to the transport direction of fiber strand in the fiber condensing zone in front of the beginning end of air suction slot at low speed if the beginning end of air suction slot is set in front of draft nip.

关 键 词：集聚纺纱 纤维集聚区 气流吸聚槽 气流流动状态 

分 类 号：TS101.8[轻工技术与工程—纺织工程]