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作 者:杨春梅[1] 赵鑫[1] 丁禹程 谭少林 闫杰 YANG Chun-mei;ZHAO Xin;DING Yu-cheng;TAN Shao-lin;YAN Jie(Center for Forestry and Woodworking Mechanical Engineering,Northeast Forestry University,Harbin Heilongjiang 150040,China)
机构地区:[1]东北林业大学林业与木工机械工程技术中心,黑龙江哈尔滨150040
出 处:《林业机械与木工设备》2024年第9期54-60,共7页Forestry Machinery & Woodworking Equipment
基 金:中央财政林业科技推广示范项目“森林草原地表火灾地空一体化监测技术推广与示范”(黑[2023]TG25)。
摘 要:风力灭火遥控机作为地面灭火装备的一种创新形式,具备机动性强、远程操作、快速响应等特点,能够在复杂的火情环境中灵活作业,大大提高了灭火效率和安全性。为探讨风力灭火遥控机在应对森林和草原地表火灾地空一体化监测系统中的角色与作用,对风力灭火遥控机进行结构设计,分析旋转开合结构的安装位置和开口大小对出口风速的影响。利用Fluent软件对风力灭火筒进行流体仿真,结合Design Expert软件对仿真数据进行处理,建立了位置S和开口大小d对出口平均风速和出口最大风速的响应曲面和二次模型。结果表明,安装位置和开口大小均为出口风速的重要影响因素,当风筒入口风速设定为70 m/s、旋转开合结构开口大小为30 mm且安装在位置5处时,出口平均风速和出口最大风速达到最大,分别为97.7551 m/s和290.001 m/s。相较于开口大小,安装位置对出口平均风速和出口最大风速的影响更大,且安装位置越靠近风筒出口处风力灭火机的灭火性能越好。As an innovative form of ground fire extinguishing equipment,the wind-powered fire extinguishing remote control machine has the characteristics of strong mobility,remote operation and rapid response,which can operate flexibly in complex fire environments,which greatly improves the efficiency and safety of fire extinguishing.In order to explore the role and function of the wind-powered fire extinguishing remote control in dealing with forest and grassland surface fires,the structural design of the wind-powered fire extinguishing remote control was carried out,and the influence of the installation position and opening size of the rotary opening and closing structure on the outlet wind speed was analyzed.The fluid simulation of the wind fire extinguisher was carried out by Fluent software,and the simulation data was processed by the Design Expert software,and the response surface and quadratic model of position S and opening size d to the average wind speed and the maximum wind speed at the outlet were established.The results show that the installation position and opening size are important influencing factors of outlet wind speed,when the wind speed at the inlet of the duct is set to 70m/s,the opening size of the rotary opening and closing structure is 30mm,and the installation position is 5,the average outlet wind speed and the maximum outlet wind speed reach the maximum,which are 97.7551m/s and 290.001m/s,respectively.Compared with the size of the opening,the installation position has a greater impact on the average wind speed of the outlet and the maximum wind speed of the outlet,and the closer the installation position is to the outlet of the wind turbine,the better the fire extinguishing performance of the wind extinguisher.
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