火工品INITIATORS&PYROTECHNICS文章编号：1003-1480（2023）01-0011-05B/KNO3激光点火器装药参数与点火性能研究郭伟1，张志新2，王端1，郭晋3，姬宇飞4，郭宇轩1(1.中北大学环境与安全工程学院，山西太原，030051;2.西北机电工程研究所，陕西咸阳，712099；3.西安机电信息技术研究所，陕西西安，710065；4.山西潞安煤炭技术装备有限责任公司，山西长治，046200)摘要：为了探索硼/硝酸钾（B/KNO3）激光点火器的装药参数对其点火性能的影响，设计了光窗式B/KNO3激光点火器并搭建了激光点火系统，试验研究了硝酸钾粒径、硼与硝酸钾配比、添加粘结剂种类与质量分数、B/KNO3装药密度及输入端密封性等因素对其发火功率和点火延迟时间的影响。结果表明：硝酸钾粒径为2～12μm、wB∶wKNO3为3∶7、添加3%的酚醛树脂、装药密度为1.6g·cm-3的B/KNO3激光点火器的点火性能最佳，其发火功率和点火延迟时间分别为4.52W和160ms；对B/KNO3激光点火器进行密封设计可进一步增强其点火性能，其发火功率和点火延迟时间分别为4.24W和120ms。关键词：激光点火；硼/硝酸钾；装药参数；光窗式点火器；点火性能中图分类号：TJ450.3文献标识码：ADOI：10.3969/j.issn.1003-1480.2023.01.003StudyonChargeParametersandIgnitionPerformanceofB/KNO3LaserIgniterGUOWei1,ZHANGZhi-xin2,WANGDuan1,GUOJin3,JIYu-fei4,GUOYu-xuan1(1.SchoolofEnvironmentandSafetyEngineering,TheNorthUniversityofChina,Taiyuan,030051；2.NorthwestInstituteofMechanicalandElectricalEngineering,Xianyang,712099；3.Xi'anInstituteofMechanicalandElectricalInformationTechnology,Xi'an,710065；4.ShanxiLu'anCoalTechnologyandEquipmentCo.Ltd.,Changzhi,046200)Abstract：InordertoexploretheinfluenceofchargeparametersofB/KNO3laserigniteronitsignitionperformance,alightwindowB/KNO3laserigniterwasdesignedandalaserignitionsystemwasbuilt.Theeffectsoftheparticlesizeofpotassiumnitrate,themassratioofborontopotassiumnitrate,thetypeandmassfractionofbinderadded,thedensityofB/KNO3chargeandthesealingpropertyoftheinputendontheignitionpowerandignitiondelaytimewereexperimentallystudied.TheresultsshowthattheB/KNO3laserigniterwiththepotassiumnitrateparticlesizeof2～12μm,themassratioofwBtowKNO3of3∶7,theadditionof3%phenolicresinandthechargedensityof1.6g...
