Abstract: Flood-control emergency rescue encounters diverse hazard scenarios, requiring flooddrainage vehicles to combine high-flow and high-lift performances. Due to the rapid iteration of flood drainage vehicles, most vehicles manufactured five to six years ago suffer from insufficient lift capacity and cannot handle deep waterlogging hazards. To address this problem, the layout of onboard cabin equipment is optimized and a high-lift drainage unit is installed without altering the vehicle appearance. This approach overcomes lift-limitation constraints to satisfy deep-waterlogging drainage requirements while taking drainage flow into account, achieving a performance balance between high lift and large flow. It can provide reference ideas for the upgrading and retrofitting of aging flood-drainage equipment as well as the research and development of new-type flood-drainage equipment.

Key words: emergency rescue flood-drainage vehicle; drainage unit; technical retrofitting; high-lift modification

摘要： 防汛应急抢险面临多样险情场景，要求防汛排涝车兼具大流量、高扬程性能。当前排 涝车辆迭代速度较快，五六年前的排涝车普遍存在扬程不足问题，难以处置深积水险情。针 对该问题，在保持车辆外观不变的基础上，优化车舱内部设备布局，加装高扬程排水单元， 破解扬程受限难题，满足深层积水抽排作业需求，同时兼顾排水流量，实现高扬程与大流量的 性能均衡，可为老旧排涝设备升级改造、新型排涝装备研发设计提供参考思路。

关键词: 应急抢险排涝车；排水单元；技术改造；高扬程改造