大功率发电用柴油机满足国四排放标准的技术研究
Technical Research of High-power Genset Diesel Engines To Meet China Ⅳ Regulation
李玉贺 1李成 1张万枝1
作者信息
- 1. 广西玉柴船电动力有限公司,广西玉林 537005
- 折叠
摘要
在某发电用柴油机开发中,遇到排放升级的问题.为满足非道路国四排放标准,本文对燃油系统、增压系统、燃烧室和SCR后处理系统进行优化设计选型.样机升级为国四状态后,跟国三样机进行性能和排放测试对比.试验结果表明:国四样机比油耗比国三样机降低 1%～7%;采用电控高压共轨燃油系统,可以有效的降低碳烟排放;基于可移动式发电机Pmax＞900kW的柴油机,采用高压共轨+高效SCR+燃烧优化的技术路线,排放污染物满足非道路国四排放限值要求.
Abstract
In the development of genset diesel engine,there was a problem where the emission upgrades.To meet the non-road China Ⅳ Regulation,this paper optimizes the design and matching of fuel system,turbochargers system,combustion chamber,and SCR post-treatment system.After upgrading to the China Ⅳ prototype,performance and emis-sion tests will be compared with the China Ⅲ prototype.The experimental results show that the fuel consumption of the China Ⅳ prototype is reduced by 1％to 7％compared to the China Ⅲ prototype;The use of high-pressure common rail system can effectively reduce carbon smoke emissions;Based on a diesel engine with a movable generator Pmax>900kW,adopting a technical roadmap of high-pressure common rail+high-efficiency SCR+combustion optimization,the emis-sions of pollutants meet the non road China Ⅳ emission limit requirements.
关键词
发电用柴油机/SCR/排放/PMKey words
Genset diesel/Selective catalytic reduction system(SCR)/Emission/PM引用本文复制引用
出版年
2024
NETL
NSTL
万方数据