摘要
随着我国社会经济的飞速发展,大空间建筑室内火灾预防和处置问题日益突出,传统消防灭火装备相对滞后,无法满足大空间建筑室内消防灭火的的要求。为此,设计了一种室内大空间自动寻的喷水灭火系统,该系统采用蜗轮蜗杆传动和齿轮传动两级传动方式实现水平和俯仰方向运动,利用火灾探测器进行火灾实时监测,16位单片机SPCE061A作为主控制器,根据火灾探测器信号控制传动机构完成火灾的空间定位。建立了水流轨迹方程并进行了仿真分析,具体分析了工作压力、俯仰角度及安装高度对水流射程及落地速度的影响。仿真和现场测试表明,所设计的喷水灭火系统具有低报错率,火灾监测和定位方法简便可行,运行稳定、及时、准确的特点,能满足大空间火灾的预防和处置要求。
Along with the rapid development of social economy in our society, the fire disaster prevention and treatment problems in interior large space were popped out increasingly, the traditional fire extinguishing equipments were relatively lagged behind, so the demand of putting out fire in interior large space could not be met. Therefor an auto-targeting fire sprinkler system of interior large space was designed. The horizontal and vertical movements of the system were completed by using the method of two steps of worm transmission and gear transmission together. The early fire was real time detected using flame sensor, and a 16 bits microchip computer SPCE061A （MCU） was also used as the controller, with which the transmission mechanism could be controlled to target of the early fire location according to the flame sensor signals. The equation of water trajectory was established and simulation was also carried out, the influences of working pressure, pitch angle and installation height on the water jet range and landing velocity were analyzed in de- tail. The simulation results and field tests show that the designed auto-targeting fire sprinkler system can satisfy the fire extinguishing requirements in prevention and treatment of large space fire disaster with characteristics of low error warning rate, easy ＆ feasible fire detection and locating method, stable operation and accurate in time, and etc.
出处
《机床与液压》
北大核心
2012年第23期17-21,41,共6页
Machine Tool & Hydraulics
基金
国家自然科学基金项目(50865004)
江西省青年科学家(井冈之星)培养对象计划项目(2009DQ01100)
江西省教育厅科学技术研究项目(GJJ11428)
关键词
喷水灭火系统
室内大空间
自动寻的
水流轨迹
Sprinkler system
Interior large space
Auto-targeting
Water trajectory
