喷气织机辅助喷嘴结构参数对流场特性的影响

doi:10.13475/j.fzxb.20181103007

Abstract

Abstract:

In order to reduce the energy consumption of the auxiliary nozzle, enhance the bundling of the air jet and improve the production efficiency and fabric quality, the influences of structural parameters of the auxiliary nozzle and the supply pressure on the characteristics of flow field were studied. The numerical simulation of three-dimensional flow field model were carried by fluid dynamics software Fluent. Three typical auxiliary nozzle structures under different gas supply pressures were investigated, such as the single circular hole, regular triangular hole and star hole. The velocity contours of the symmetry planes, the central axis speed, the air consumption and the weft insertion stability were acquired under the air supply pressure of 0.2 MPa to 0.4 MPa. The numerical results of the central line velocity and the radial velocity of the single circular hole were verified by experiment. Comparisons between these two results indicate that the overall trend of speed change is consistent with the experimental results. On this basis, the influence of different orifice type auxiliary nozzles on the flow field was explored. The results showed that when the air supply pressure is same, the star-hole auxiliary nozzle has better airflow bundling, better weft insertion stability and less air consumption.

Key words: air jet loom, auxiliary nozzle, profiled reed, numerical simulation, star hole

CLC Number:

TS103.3

LI Sihu, SHEN Min, BAI Cong, CHEN Liang. Influence of structure parameter of auxiliary nozzle in air-jet loom on characteristics of flow field[J].Journal of Textile Research, 2019, 40(11): 161-167.

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References 15

[1]	徐浩贻. 喷气织机能耗及降低辅助喷嘴气耗的探讨[J]. 纺织学报, 2010,31(5):126-130.
	XU Haoyi. Research on energy-consumption of air-jet loom and decrease in air-consumption of relay nozzle[J]. Journal of Textile Research, 2010,31(5):126-130.
[2]	刘承文, 金玉珍, 胡旭东, 等. 喷气织机辅喷嘴气流场数值模拟及特性分析[J]. 现代纺织技术, 2011,19(4):1-5.
	LIU Chengwen, JIN Yuzhen, HU Xudong, et al. Numerical simulation and analysis on gas flow field of the auxiliary nozzle in air-jet looms[J]. Advanced Textile Technology, 2011,19(4):1-5.
[3]	MEULEMEESTER S D, PUISSANT P, LANGENHOVE L V. 3D Simulation of the dynamic yarn behavior on air-jet looms[J]. Textile Research Journal, 2009,79(18):1705-1714.
[4]	BELFORTE G, MATTIAZZO G, TESTORE F, et al. Experimental investigation on air-jet loom sub-nozzles for weft yarn insertion[J]. Textile Research Journal, 2010,81(8):791-797.
[5]	KHIANI R K, PEERZADA M H, ABBASI S A, Air consumption analysis of air-jet weaving[J]. Mehran University Research Journal of Engineering & Technology, 2016,35(3):453-458.
[6]	陈革, 吴重敏, 沈军, 等. 基于Fluent的辅助喷嘴气流流场数值模拟[J]. 纺织学报, 2010,31(8):122-124,129.
	CHEN Ge, WU Chongmin, SHEN Jun, et al. Numerical simulation of flow field of auxiliary nozzle as affected by orifice forms of air-jet loom based on Fluent[J]. Journal of Textile Research, 2010,31(8):122-124,129.
[7]	汪旺. 喷气织机辅助喷嘴及合成气流场的数值仿真[D]. 杭州:浙江理工大学, 2012:3-26.
	WANG Wang. Numerical simulation of auxiliary nozzle and synthetic airflow field of air-jet loom [D]. Hangzhou: Zhejiang Sci-Tech University, 2012:3-26.
[8]	谭保辉, 冯志华, 刘丁丁, 等. 基于CFD的喷气织机辅助喷嘴流场分析[J]. 纺织学报, 2012,33(7):125-130.
	TAN Baohui, FENG Zhihua, LIU Dingding, et al. Flow flied anslysis of auxiliary nozzle of air-jet loom based on CFD[J]. Journal of Textile Research, 2012,33(7):125-130.
[9]	王卫华, 冯志华, 谭保辉, 等. 喷气织机辅助喷嘴引纬特性分析及纬纱牵引实验研究[J]. 纺织学报, 2014,35(10):121-128.
	WANG Weihua, FENG Zhihua, TAN Baohui, et al. Characteristic analysis of flow field and experimental investigation on traction force of weft yarns of auxiliary nozzle in air-jet loom[J]. Journal of Textile Research, 2014,35(10):121-128.
[10]	张亮, 冯志华, 刘帅, 等. 喷气织机辅助喷嘴喷孔结构优化设计[J]. 纺织学报, 2016,37(6):112-117,123.
	ZHANG Liang, FENG Zhihua, LIU Shuai, et al. Structure optimization design of auxiliary nozzle for air-jet loom[J]. Journal of Textile Research, 2016,37(6):112-117,123.
[11]	陈巧兰, 王鸿博, 高卫东, 等. 喷气织机单圆孔辅助喷嘴结构优化[J]. 纺织学报, 2016,37(1):142-146.
	CHEN Qiaolan, WANG Hongbo, GAO Weidong, et al. Structure optimization of single circular hole auxiliary nozzle in air-jet loom[J]. Journal of Textile Research, 2016,37(1):142-146.
[12]	孔双祥, 胥光申, 巨孔亮. 基于Fluent喷气织机不同单孔辅助喷嘴的结构优化[J]. 西安工程大学学报, 2017,31(1):82-87.
	KONG Shuangxiang, XU Guangshen, JU Kongliang. Structure optimization of different single hole auxiliary nozzle in air-jet loom based on Fluent[J]. Journal of Xi'an Polytechnic University, 2017,31(1):82-87.
[13]	胥光申, 孔双祥, 刘洋, 等. 基于Fluent的喷气织机辅助喷嘴综合性能[J]. 纺织学报, 2018,39(8):124-129.
	XU Guangshen, KONG Shuangxiang, LIU Yang, et al. Comprehensive performance of auxiliary nozzle in air-jet loom based on Fluent[J]. Journal of Textile Research, 2018,39(8):124-129.
[14]	ADANUR S, MOHAMED M H. Weft insertion on air- jet looms: velocity measurement and influence of yarn structure: part I: experimental system and computer interface[J]. Journal of The Textile Institute, 1988,79(2):297-315.
[15]	ADANUR S, MOHAMED M H. Analysis of yarn motion in single-nozzle air-jet filling insertion: part II: experimental validation of the theoretical models and statistical analysis[J]. Journal of The Textile Institute, 1992,83(1):56-68.

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压力P/ MPa	总压P₁/ MPa	静压P₂/ Pa	湍动能κ/ (m²·s^-2)	湍动能耗散率 ε/(m²·s^-2)
0.2	0.2	198 366	5.7	9 942.8
0.3	0.3	297 554	5.1	8 480.5
0.4	0.4	396 703	4.8	7 724.4

速度/(m·s^-1)	等效圆直径/mm
速度/(m·s^-1)	数值模拟	文献[4]实验值
100	3.1	3.5
80	4.6	4.5
60	6.5	6.7
40	8.5	9.5
20	10.0	12.5

孔形	最大速度/(m·s^-1)	耗气量/(m³·h^-1)
单圆孔	432	1.357
正三角形孔	457	1.380
星形孔	497	1.215

孔形	不同压力下等效圆半径
孔形	0.3 MPa	0.4 MPa
单圆孔	1.45	1.82
正三角形孔	1.54	1.96
星形孔	1.92	2.12

Influence of structure parameter of auxiliary nozzle in air-jet loom on characteristics of flow field

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