中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2012年
7期
154-160
,共7页
王巨丰%黄志都%王嬿蕾%陈智勇%潘坤年
王巨豐%黃誌都%王嬿蕾%陳智勇%潘坤年
왕거봉%황지도%왕연뢰%진지용%반곤년
电弧%电弧薄层%爆炸气流%链式模型%温度分布
電弧%電弧薄層%爆炸氣流%鏈式模型%溫度分佈
전호%전호박층%폭작기류%련식모형%온도분포
arc%arc layer%airflow of explosion%arc chainmodel%temperature distribution
为研究大电场条件下有效熄灭电弧的优良方法,在开放空间下,考虑爆炸产生的冲击波及强烈气流耦合电磁场等因素的影响,基于电弧链式思想和经典激波理论分析电弧在爆炸气流影响下的受力情况,推导出电弧运动速度控制方程。在此基础上,结合能量平衡方程及热交换原理,建立耦合场的电弧模型。通过有限差分法求解模型,分析气流耦合电磁场下电弧熄灭的运动过程和物理特性变化,并得出电弧状态相关参数(温度、电导率等)和熄灭时间的特性。试验结果表明电弧熄灭效果具有工程应用价值。
為研究大電場條件下有效熄滅電弧的優良方法,在開放空間下,攷慮爆炸產生的遲擊波及彊烈氣流耦閤電磁場等因素的影響,基于電弧鏈式思想和經典激波理論分析電弧在爆炸氣流影響下的受力情況,推導齣電弧運動速度控製方程。在此基礎上,結閤能量平衡方程及熱交換原理,建立耦閤場的電弧模型。通過有限差分法求解模型,分析氣流耦閤電磁場下電弧熄滅的運動過程和物理特性變化,併得齣電弧狀態相關參數(溫度、電導率等)和熄滅時間的特性。試驗結果錶明電弧熄滅效果具有工程應用價值。
위연구대전장조건하유효식멸전호적우량방법,재개방공간하,고필폭작산생적충격파급강렬기류우합전자장등인소적영향,기우전호련식사상화경전격파이론분석전호재폭작기류영향하적수력정황,추도출전호운동속도공제방정。재차기출상,결합능량평형방정급열교환원리,건립우합장적전호모형。통과유한차분법구해모형,분석기류우합전자장하전호식멸적운동과정화물리특성변화,병득출전호상태상관삼수(온도、전도솔등)화식멸시간적특성。시험결과표명전호식멸효과구유공정응용개치。
In order to study the excellent method to extinguish the arc effectively under the strong electric field, movement governing equation of the electric arc was inferred in the open space by considering the effects of the shock-wave produced by detonation and the electromagnetic field coupling air current. Meanwhile, the force situation of electric are was analyzed based on the electric arc chain idea and the classical shock-wave theory. Energy balance equation and heat change principle were also combined to establish the coupled field electric arc model. The model was solved with the finite differential method to simulate the state of arc under the electromagnetic field coupling air current and then acquire the relevant parameters (temperature, conductivity, etc.) of arc states and electric arc extinguishment time response. Finally, the experimental results indicated that the electric arc extinguishment effect has values of engineering application.