冷却净化水箱对防爆柴油机的影响研究  

Influence research of cooling and purified water tank on explosion-proof diesel

作　　者：李强强[1] 张翠平[1] 张瑞亮[1] 孙秀全[1] 张钰栋[1] 孙丹丹[1] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024

出　　处：《工矿自动化》2017年第3期35-39,共5页Journal Of Mine Automation

基　　金：山西省煤基重点科技攻关项目(MJ2014-14)

摘　　要：对加装冷却净化水箱前后的井下防爆柴油机进行了十一工况和外特性试验,分别测得不同工况下防爆柴油机排气口温度、排放废气及颗粒物含量、输出转矩、输出功率及油耗率,进而得到冷却净化水箱对防爆柴油机排放特性、动力性及经济性的影响。结果表明:防爆柴油机加装冷却净化水箱后,排气降温效果明显,废气温度不高于50°C;NOx排放有很大的改善,最大排放降幅为39.3%;CO排放量在高负荷工况下有所增加,最大增幅为22.2%;HC排放量变化不大;颗粒物排放量在高负荷工况下稍有增加;动力性有所降低,在最大转矩处,输出转矩和输出功率均下降2.5%;经济性有所下降,油耗率最多增加了3.2%。Eleven working points test and external characteristics test were taken for underground explosion-proof diesel before and after installing cooling and purified water tank.Some indexes of explosion-proof diesel were obtained under different conditions,including temperature of exhaust port,contents of waste gas and particulate matter,output torque,output power and fuel consumption rate.Influence of cooling and purified water tank on discharge,power and economy performance of explosionproof diesel was summarized.The test results show that cooling effect for exhausting gas is obviously improved after installing cooling and purified water tank,and temperature of waste gas is lower than50℃.NOx exhaustion is greatly improved with the largest decreasing amplitude of 39.3%.CO exhaustion increases under the heavy load condition with the largest increasing amplitude of 22.2%.HC exhaustion has little variety.Particulate matter exhaustion increases a little under the heavy load condition.Power performance of the explosion-proof diesel decreases,and output torque and output power decreases 2.5% separately under the maximum torque condition.Economical performance decreases,and fuel consumption rate increases 3.2% at most.

关 键 词：防爆柴油机 冷却净化水箱 排放特性 动力性 经济性 

分 类 号：TD524[矿业工程—矿山机电]