煤矿用防爆水冷进排气歧管的仿真分析  

Simulation Analysis of Explosion Proof Water-Cooled Intake and Exhaust Manifold for Coal Mine

作　　者：王晓 WANG Xiao(CCTEG Taiyuan Research Institute Co., Ltd., Taiyuan 030006, China)

机构地区：[1]中煤科工集团太原研究院有限公司

出　　处：《煤矿机电》2019年第4期72-75,共4页Colliery Mechanical & Electrical Technology

摘　　要：根据某型煤矿用防爆柴油机的进排气布置在缸体一侧的结构特点,通过理论分析,应用流体仿真分析软件,对符合煤矿安全要求的一体式防爆进排气歧管进行了仿真分析,得出其压力场和温度场,然后对进排气歧管进行了优化改进。优化后,进排气由歧管到气道之间的过渡更顺畅,速度和压力分布更加均匀,局部低速区域得到缓解,进排气凸台处流动分布比优化前顺畅很多,速度和压力的分布也比优化前均匀,为解决同类问题提供了参考。According to the structural characteristics that the intake and exhaust gas of the explosion-proof diesel engine gather on one side of the cylinder block in a coal mine, through theoretical analysis and applying fluid simulation analysis software, the integrated explosion-proof intake and exhaust manifold which met the safety requirements of coal mine has been simulated and analyzed. The pressure field and temperature field have been obtained, and the intake and exhaust manifold has been optimized and improved. After optimization, the excess between manifold and airway is smoother, the distribution of velocity and pressure is more uniform, the local low-speed area is alleviated, the flow distribution at intake and exhaust manifold is much smoother than before optimization, and the distribution of velocity and pressure is more uniform than before optimization, which can provide a reference for solving similar problems.

关 键 词：防爆柴油机 进排气歧管 尾气排放 

分 类 号：TD525[矿业工程—矿山机电] TK421.44[动力工程及工程热物理—动力机械及工程]