摘要
针对某型矿用防爆柴油机存在动力性差、排放高等问题,用流体仿真分析软件对该防爆柴油机进气歧管的进气流道和水套结构建立了仿真模型,并按模型进行计算仿真得出其压力场和流线,对进气歧管进行了优化改进;最后对进气歧管优化前的防爆柴油机进行了台架试验,试验结果表明:优化改进后的防爆柴油机功率增加0.17%,扭矩最高增加0.23%,燃油消耗率最高减少0.58%,CO最高下降23.46%,NOx下降0.15%,烟度下降17.26%。由此,不仅防爆柴油机的性能和排放得到了显著的改善,又为解决同类问题提供了借鉴意义。
For a certain type of mining explosion-proof diesel engine existing power difference, high emissions, with a fluid simulation analysis software of the explosion proof diesel engine intake manifold inlet channel and a water jacket structure simulation model is established, and according to the model simulation we calculate the pressure field and flow, on an air inlet manifold is optimized and improved. Finally on the intake manifold optimization of explosion proof diesel engine test bench. The test results show that ： improved explosion proof diesel engine power was increased by 0. 17%, 0. 23% increase in top torque, fuel consumption rate highest reduce O. 58%, decrease in the highest Co 23.46%, NOx decreased 0.15%, the smoke decreased 17.26%. As a result, not only the performance and emissions of explosion proof diesel engine has been significantly improved, but also provide a reference for solving similar problems.
出处
《煤矿机电》
2016年第5期33-36,40,共5页
Colliery Mechanical & Electrical Technology
关键词
防爆柴油机
进气歧管
排放
explosion proof diesel engine
intake manifold
emission
