摘要
随着全球资源的日益紧缺,大型中空吹塑制品已经走进人们生活的各个领域,而其使用上的多样性给生产厂家提出了越来越多的难题:如何让气针在旋转的情况下完成通水、通电、通气,如何设计气针的水路循环系统使其达到冷却要求,如何完成结构复杂的气针的加工等等。针对大型中空吹塑设备中的主要部件气针进行设计。为了便于加工,气针采用分体式结构,并解决了气针的运动、冷却水循环等问题。采用ANSYS FLOTRAN软件进行数值模拟,通过对气针的冷却问题进行流场及温度场的耦合分析,确定了冷却水流道的通流截面面积、入水口压力等参数。最后通过在流道换向处增加圆角来改善流体的流动状态。气针的结构得到了优化。
As global resource is more and more shortage,the large hollow blow molding products have entered people＇s life in various fields.And for the diversity of using,the enterprises are facing more and more problems： how to make the gas needle to rotate under the condition of water,electricity,ventilation.How to design the gas needle to the requirement of cooling water circulation system,how to perform the process for the complicated gas needle and so on.Here,the main component gasneedle in the large-scale hollow blow molding equipment is designed.To facilitate the processing,the gas-needle adopts fission style structure,solves the problem of gas-needle movement and cooling water circulation.It uses ANSYS FLOTRAN software to carry out the numerical simulation,according to coupling analysis in flow field and temperature field about the cooling problems of gas-needle,to confirm some parameters such as the flow section area of cooling water runner and the water entry pressure.Conclusively,to add rounds in the runner reversing place to improve fluid flow condition.The structure of gas-needle is optimized.
出处
《机械设计与制造》
北大核心
2013年第8期233-236,共4页
Machinery Design & Manufacture
基金
辽宁省重点科技攻关项目(2011216012)
关键词
大型中空吹塑
气针
换热器
ANSYS
Large-Scale Hollow Blow Molding
Gas-Needle
Heat-Exchange Facility
ANSYS
