摘要
绳索救援中提升系统实际增益小于其理论增益,导致在救援提升作业时不能进行精准操作。通过实验,测试多种型号和类型滑轮的效率;测试抓绳器(PCD)对提升系统效率的影响;测试安全钩、I'D系列下降器代替滑轮使用时的效率。利用“T”型分析法,代入实测滑轮效率,计算提升系统实际增益。为绳索救援提供理论依据,避免作业的盲目性,提高救援效率。
In rope rescue,the actual mechanical advantage of hauling system is less than the theoretical mechanical advantage,resulting in an overestimation of the rescue capability.Experiments are designed to test the efficiency of various types of pulleys,the effect of progress capture device(PCD)on pulley efficiency,and the efficiency of carabiner and I'D instead of pulley.Through the T-Method,calculated mechanical advantage of the hauling system by substituting the test result of pulley efficiency.To provide data support for accurately evaluating the actual mechanical advantage of hauling system in rope rescue,and improving rescue effciency.
作者
苏煜
刘立文
SU Yu;LIU Li-wen(Tianjin Hongqiao Fire and Rescue Detachment,Tianjin 300131,China;China People's Police University,Hebei Langfang 065000,China)
出处
《消防科学与技术》
CAS
北大核心
2020年第5期700-703,共4页
Fire Science and Technology
基金
中国人民警察大学优秀硕士论文培育项目(JDYP201906)
作者简介
苏煜(1989-),男,天津人,天津市红桥区消防救援支队丁字沽中队中队长,硕士,主要从事消防灭火与应急救援指挥工作,天津市红桥区丁字沽,300131;通信作者:刘立文,中国人民警察大学救援指挥学院教授,硕士生导师,河北省廊坊市西昌路220号,065000。
