Flow Field Analysis And Structure Optimization Design For Strainer Pipe Of Carding Machine

High production carding machine is equipped with strainer pipe device.If impurity cannot be cleared by strainer pipe in time,it will influence the quality of sliver and reduce the market competitiveness of carding machine,then bring unnecessary consumption cost.Strainer pipe of carding machine is negative pressure suction device.Pipeline's structure has a decisive role on dust collection efficiency,fan energy consumption and work reliability.The grope carried out the research and analysis on strainer pipe of carding machine with Qingdao textile machinery co.,LTD.Taking strainer pipe of FB1235 carding machine as the research object,its flow field characteristics is analyzed with computational fluid dynamics simulation and experimental methods.A new structure design of strainer pipe is putted forward by analyzing the problems existing in the structure.Firstly,based on the analysis of strainer pipe structure and dust removal principle,the strainer pipe's 3d parametric model is formed by Solidworks software.Then,in this paper,the fluid mechanics theory is introduced,and the three-dimensional model is imported into Fluent software.The analysis condition is incomprehensible with K-epsilon turbulent model.By using commercial CFD software,the flow field characteristic of carding dust pipe is analyzed.The simulation results are analyzed,such as wind pressure,wind speed and turbulence clouds of strainer pipe.Air flow field experiment for the original structure is carried out at the same time,and the relevant air flow field characteristic of the original structure data is measured.The analysis results of Fluent simulation results and the experimental measurement results show that there are vortex present in the dust,which resulted in pressure losses and lower collection efficiency.To resolve this issue,the dust shape is optimized and analyzed.The comparisons of before and after optimized dust shows that the flow field distribution optimized is more reasonable.And the feasibility of the optimized model design is verified.