Simulation analysis of thermal characteristics of shredder tool with jet cooling
GU Zhen-ye1, GU Shu-hao1, XIA Peng1, QIAN Peng-fei1, LIN Meng2, XIE Fang-wei1
(1.School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China;
2.Xinbei Machinery Co., Ltd., Zhangjiagang 215600, China)
Abstract: Aiming at the problem that the service life of the shredder tool decreased due to the high temperature after working for a long time, the jet cooling technology was applied to the shredder tool, the shredder tool was impacted with cooling medium and its temperature was reduced by forced convection heat transfer. A threedimensional cooling model under two different jet media, air and water, were established based on a new shredder tool structure, the influence of different cooling methods on the thermal characteristics of the shredder tool was analyzed by selecting the reasonable calculation area, boundary conditions and the standard kε turbulence model with Fluent software. The results show that the cooling system can control the temperature rise of the tool effectively and improve the nonuniformity of the tool temperature, with water jet cooling. The simulation of the thermal characteristics of the tool under different pressure can guide the selection of the parameters of the actual shredder tool cooling system.
Key words: shredder tool; jet cooling; numerical simulation; thermal characteristics