消防水炮射流运动轨迹模型与定位补偿方法

Jet trajectory model and positioning compensation method for fire water cannon

传统的喷洒水和气体灭火系统已不能满足大空间建筑场所的灭火要求,智能消防水炮已逐步成为高大空间和工业场合的灭火新设备.针对当前智能消防水炮射流灭火误差较大的问题,在考虑空气阻力的情况下,构建智能消防水炮射流运动轨迹模型,分析射流轨迹特性,求解初始仰射角,进行定位旋转角补偿.通过仿真实验完善和验证射流运动轨迹模型初始参数,以及它们之间相互约束关系;在实际试验环境下,对通过射流运动轨迹模型计算得到的初始仰射角进行分段修正补偿.实验结果表明,基于考虑空气阻力下的智能消防水炮射流运动轨迹模型的定位时间小于30s,射流落水点和火源中心偏差小于0.3m,射程误差满足国家标准,可为智能消防水炮的控制和研发提供借鉴.

The traditional spraying water and gas fire extinguishing system can not meet the growing fire-fighting requirements of large space buildings,and then intelligent fire water cannons have gradually become the new fire-fighting equipment for large space and industrial applications.For the jet fire of current intelligent fire water cannons had a big error,jet trajectory models for fire water cannons were built in consideration of air resistance.The characteristics of jet trajectory were analyzed based on the model,then initial elevation angle was solved with considering the positioning rotation angle.The initial parameters and mutual restraint between them for the proposed jet trajectory model were verified and improved through simulation experiments.In the actual test environment,the initial elevation angle calculated by the proposed model was corrected and section ally compensated.Experimental results showed that intelligent fire water cannons based on the proposed jet trajectory models considering air resistance would achieve positioning time of less than 30 s.The deviation between the drowning center point and ignition source was less than 0.3m,and the range error met the national standard.This method can provide references for the control and research of the intelligent fire water cannons.