JOURNAL OF TEXTILE RESEARCH ›› 2018, Vol. 39 ›› Issue (08): 124-129.doi: 10.13475/j.fzxb.20170905606

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Comprehensive performance of auxiliary nozzle of air-jet loom based on Fluent

  

  • Received:2017-09-25 Revised:2018-05-10 Online:2018-08-15 Published:2018-08-13

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Abstract:

In order to improve the weft insertion performance of the air-jet loom and reducing the energy consumption, the structures and parameters of the auxiliary nozzle were optimized. By numerical simulatio analysis, using Fouent software, the influence of different sructures and parameters of the auxiliary nozzle on airflow velocity, velocity attenuation and air consumption at the outlet of the auxiliary nozzle were investigated. A method for evaluating the comprehensive comparison of the auxiliary nozzle was proposed to obtain an auxiliary nozzle with good injection performance and low air consumption. The results show that the injection performance of the auxiliary nozzle with the center annular distribution mode is better than that with the annular distribution. The auxiliary nozzle of same orifice number with the center annular distribution has the outlet airflow velocity decreasing with the decrease of the center orifice diameter. Under the same orifice area, air consumption of the auxiliary nozzle decreases gradually with the increase of nozzle oridice number, and the air consumption of 8 K04 auxiliary nozzle is minimum. It is found that the comprehensive performance of 7 K04 auxiliary nozzle is the best with high airflow velocity and low air consumption. The comprehensive performance of 5 K03, 6 K05,7 K04 and 8 K04 auxiliary nozzles are better than that of single circular orifice auxiliary nozzle.

Key words: air-jet loom, auxiliary nozzle, numerical simulation, Fluent software

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