爆破器材
爆破器材
폭파기재
2014年
3期
14-20
,共7页
马宁%苏杨%秦能%陈松%张亮%陈基
馬寧%囌楊%秦能%陳鬆%張亮%陳基
마저%소양%진능%진송%장량%진기
含能材料%慢烤燃%风扇%隔板%温场分布
含能材料%慢烤燃%風扇%隔闆%溫場分佈
함능재료%만고연%풍선%격판%온장분포
energetic materials%slow cook-off%fan%partition%temperature field distribution
建立了一种1L慢烤燃装置模型,通过数值模拟分析其内部温场分布的影响因素和机理,通过改变模型中隔板尺寸、导流板形状、风扇数量和风扇转速等条件,研究了各种工况下烤燃装置内烧瓶周围温场分布。模拟结果表明,风扇数量与转速、隔板尺寸、导流板形状均会影响烧瓶周围温场分布的位置,但仅有风扇转速会影响温场响应的灵敏度、温场达到稳定所需时间和温场分布均匀性。理想的慢烤燃装置可实现的温场分布性能为:响应时间低于1 s,达到稳定时间低于30 s,均匀度在0.2℃左右。建立试验装置,在烧瓶外侧布置温度传感器,所得温场分布和温场均匀度与模拟结果一致。
建立瞭一種1L慢烤燃裝置模型,通過數值模擬分析其內部溫場分佈的影響因素和機理,通過改變模型中隔闆呎吋、導流闆形狀、風扇數量和風扇轉速等條件,研究瞭各種工況下烤燃裝置內燒瓶週圍溫場分佈。模擬結果錶明,風扇數量與轉速、隔闆呎吋、導流闆形狀均會影響燒瓶週圍溫場分佈的位置,但僅有風扇轉速會影響溫場響應的靈敏度、溫場達到穩定所需時間和溫場分佈均勻性。理想的慢烤燃裝置可實現的溫場分佈性能為:響應時間低于1 s,達到穩定時間低于30 s,均勻度在0.2℃左右。建立試驗裝置,在燒瓶外側佈置溫度傳感器,所得溫場分佈和溫場均勻度與模擬結果一緻。
건립료일충1L만고연장치모형,통과수치모의분석기내부온장분포적영향인소화궤리,통과개변모형중격판척촌、도류판형상、풍선수량화풍선전속등조건,연구료각충공황하고연장치내소병주위온장분포。모의결과표명,풍선수량여전속、격판척촌、도류판형상균회영향소병주위온장분포적위치,단부유풍선전속회영향온장향응적령민도、온장체도은정소수시간화온장분포균균성。이상적만고연장치가실현적온장분포성능위:향응시간저우1 s,체도은정시간저우30 s,균균도재0.2℃좌우。건립시험장치,재소병외측포치온도전감기,소득온장분포화온장균균도여모의결과일치。
A 1L slow cook-off device model was established .The influence factors and mechanisms of temperature field distribution in the slow cook-off device were simulated .Temperature field distribution around the flask was studied under diverse operating conditions by changing partition size , guide plate shape , number of fans and rotation speed of fans used in the model .The simulation results show that the number and rotation speed of the fans , partition size and guide plate shape will affect the position of temperature field distribution around the flask , but only the fan rotation speed affects the sensitivity of temperature field response , the time required to reach a steady temperature field and temperature uniformity . An ideal slow cook-off device can realize some performances as follows: response time is less than 1 s, the time to reach stable temperature is no more than 30 s and temperature field uniformity is about 0.2℃. When the testing device is estab-lished and temperature sensors are equipped outside the flask , temperature filed distribution and temperature uniformity tested are consistent with the simulation results .