摘要
为提高ZL28滤棒成型机组捕丝器的工作效率和输送效果，分析了捕丝器的工作原理和气动特性，建立了捕丝器的数学模型。在保持输入的压缩空气压力稳定状态下，通过试验检测了输入的压缩空气流量和出口截面面积对捕丝器负压和滤棒品质的影响。结果表明：①当出口截面面积一定时，输入的压缩空气流量与捕丝器负压成正比；②当输入的压缩空气流量一定时，随出口截面面积的增大，捕丝器负压先迅速增大，再逐渐减小；③当捕丝器负压过小时，滤棒出现填充不足和缩头现象；当输入的压缩空气流量过大时，滤棒吸阻不稳定。因此，将控制输入压缩空气流量的比例阀打开60％～90％，并将控制出口截面面积的刻度调整在3～6范围内，可以发挥捕丝器的最大效能。
To run the transport jet in ZL28 filter maker more efficiently, the mathematic model of the jet was developed by analyzing its working principle and aerodynamic characteristics. Keeping the pressure of input compressed air unchanged, the effects of input air volume and cross-sectional area at outlet on the negative pressure formed in the jet and the quality of filter rod were experimented. The results showed that： 1） With a constant cross-sectional area at outlet, input air volume positively proportioned to the negative pressure in the jet. 2） At constant input air volume, the negative pressure in the jet rapidly increased first then decreased gradually with the increase of cross-sectional area at outlet. 3） Filter rods with inadequate filling or recessed-end would occur when the negative pressure in the jet was too weak; the draw resistance of filter rod varied wider when too much air was introduced. Transport jet would reach its optimal efficiency when the opening of proportional valve of input air was controlled in the range of 60%-90% and the graduation of cross-sectional area at outlet set in the range of 3-6.
出处
《烟草科技》
EI
CAS
北大核心
2014年第7期21-23,共3页
Tobacco Science & Technology
基金
中国烟草机械集团有限责任公司项目"1000米/分钟滤棒成型机组引进技术消化吸收"(110201202020)
关键词
滤棒成型机组
捕丝器
压缩空气
截面面积
比例阀
Filter maker
Transport jet
Compressed air
Cross-sectional area
Proportional valve
