The structure composition of the intake and exhaust device and the molding process of filled foam are introduced briefly.The heat-shielding performance of the filling foam of intake and exhaust device is simulated by using the thermodynamic module in ANSYS Workbench.The thermal insulation and water-absorbed rate of foam filled samples are carried out.The simulation and actual measurement results show that the Heat-insula-tion characteristic of filled foam is remarkable,and it can insulate the exhaust pipe from 180℃to the intake pipe not more than 61℃.Under the 0.05 MPa pressure for 24 h,the maximum water absorption rate is 0.72%,meeting the requirements for the heat-insulation characteristic and water-absorbed rate,releasing risks,and laying a certain theoretical support for its application.
关键词
进排气装置/填充泡沫/隔热性能/吸水率/试验验证
Key words
intake and exhaust device/filling foam/heat-insulation characteristic/water-absorbed rate/test verification
维普
万方数据