摘要
为研究转杯纺纱接头过程,应用fluent流体计算软件对纺纱通道内气流场进行数值模拟,结合接头工艺研究了转杯纺纱通道内气流场特征。模拟结果揭示了接头过程纤维和纱线的运动规律:纤维经过纤维输送通道进入转杯内,纤维到达转杯内壁斜面上时一方面向凝聚槽中移动,一方面沿转杯旋转方向移动;纤维在凝聚槽50°位置处进入凝聚槽中且速度达到最大,为231m/s;纤维速度沿着转杯旋转方向逐渐减小,在凝聚槽250°处最小为30m/s;引纱管和转杯内存在负压,引纱管出口处负压最小为7 827Pa,接头纱从引纱管吸入,在转杯内涡流的作用下被抛向转杯凝聚槽中,与纤维环进行搭接。
To study the piecing process of rotor spinning,this paper uses fluent fluid calculation software to conduct numerical simulation on airflow field in spinning channel and studies features of airflow field in rotor spinning channel based on piecing process.The simulation result reveals the law of motion of fiber and yarn in piecing process：fiber enters rotor through fiber transfer passage;it moves to coagulation bath on the one hand and moves along the rotation direction of rotor on the other hand when reaching the inclined plane of internal wall of rotor;fiber enters coagulation bath at 50°position and its speech reaches the maximum,231m/s;the speed of fiber gradually decreases along the rotation direction of rotor and reaches the minimum 30m/s at 250°position;negative pressure exists in doffing tube and rotor.The negative pressure reaches the minimum 7 827Pa at the exit of doffing tube.Beating is inhaled from doffing tube and thrown to rotor coagulation bath under the action of vortex in rotor for overlap joint with fibrous ring.
出处
《现代纺织技术》
2014年第3期1-4,共4页
Advanced Textile Technology
基金
国家自然科学青年基金项目(51205363)
浙江理工大学科研启动基金(1003835\|Y)
浙江省科技厅重点工业项目(2010C11044)
关键词
转杯纺
接头过程
FLUENT
数值模拟
纺纱
rotor spinning
piecing process
FLUENT
numerical simulation
spinning
