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首页> 外文期刊>The Journal of the Textile Institute >Effect of the distance between jet orifice and nozzle Alex on properties of vortex spun yarn
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Effect of the distance between jet orifice and nozzle Alex on properties of vortex spun yarn

机译：喷嘴与喷嘴之间的距离对涡流纺纱性能的影响

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This study focuses on the effect of various distances between the jet orifice and the nozzle Alex on the properties of the vortex spun yarn. Four levels of the distance are designed within certain range. Building three-dimensional computational fluid dynamics models, we use the method of numerical simulation to calculate the inner fluid field of nozzle. The results showed that the distance typically affected the airflow movements, particularly in tangential velocity, and the smaller d is beneficial to diffuse the airflow uniformly and to improve the quality of vortex spun yarn. The corresponding experiments have been carried out. In this paper, 100% viscose drawing slivers are spun into vortex spun yarn, and their physical properties are tested. Spinning experiment results prove that when the distance is minimum under the condition of avoiding the high-speed airflow shooting out from the jet orifices colliding with the cone body, the yarn strength reaches the maximum value, while the unevenness of breaking strength meets the minimum, and the other yarn properties are superior, which shows a good agreement with the simulation results.
机译：这项研究的重点是射流孔和喷嘴Alex之间的不同距离对涡流纺纱性能的影响。在一定范围内设计了四个级别的距离。建立三维计算流体动力学模型，采用数值模拟的方法计算喷嘴的内部流场。结果表明，该距离通常会影响气流运动，特别是切线速度，并且较小的d有助于均匀地分散气流并提高涡流纺纱的质量。已经进行了相应的实验。在本文中，将100％粘胶拉伸条纺成涡流纺纱，并测试其物理性能。纺丝实验结果表明，在避免高速气流从射流口与锥体碰撞的情况下，当距离最小时，纱线强度达到最大值，而断裂强度的不均匀性达到最小，其他纱线性能优越，与仿真结果吻合良好。

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