摘要
矿用电缆卷放车作为匹配电铲作业的供电辅助设备,其内部的电缆卷筒卷绕着多层大电流的电缆,在长期运行下不仅浪费电能,其内部损耗造成的线损和温升等问题都将是矿区安全运行的隐患。文章建立容缆量为1000m的电缆卷筒电磁-流体-温度多物理场耦合模型。利用电磁场的计算获得电缆内芯电磁损耗,在自然对流状态下将其作为体积热源计算电缆卷筒的温度场分布。通过与实际运行温度的对比可验证电缆卷筒温升计算方法的合理性,该研究也为煤矿开采的供电状况判断提供了新的思路。
Mine cable winder is used as auxiliary power supply equipment for matching shovel operation,and its internal cable drum is wrapped around multi-layer high-current cables.In long-term operation,let alone the energy waste,line loss caused by internal loss,temperature rise and other problems will be hidden dangers for mine safety operation.In this paper,the electromagnetic-fluid-temperature multi-physical coupling model of cable drum with cable capacity of 1000 meters is established.The electromagnetic loss of the cable core is obtained by calculating the electromagnetic field,and the temperature field distribution of the cable drum is calculated by using the electromagnetic field as the volume heat source under natural convection.By comparing with the actual operating temperature,the rationality of the calculation method for cable drum temperature rise can be verified.This study also provides a new way to judge the power supply status of coal mining.
作者
周永利
彭继慎
ZHOU Yong-li;PENG Ji-shen(School of Mechanical Engineering,Liaoning University of Engineering and Technology,Fuxin 123000,China;Shenhua Zhungeer Energy Co.,Ltd.,Ordos 010300,China;School of Electrical and Control Engineering,Liaoning University of Technology,Huludao 125000,China)
出处
《煤炭工程》
北大核心
2020年第S02期110-115,共6页
Coal Engineering
基金
辽宁省教育厅服务地方项目(L2019F1003)
2019年辽宁省教育厅科学技术研究创新团队项目(LT2019007)
关键词
千米电缆卷筒
多物理场耦合
电磁场
温度-流体场
温升
kilometer cable drum
multi-physical field coupling
electromagnetic field
temperature-fluid field
temperature rise
