In order to improve the efficiency of fire extinguishing in the early stage of forest fires,a novel forest wind extinguisher with self-guided flow is designed.Firstly,the overall structure type and specific implementation mode of the extinguisher are analyzed and described,and the structure design and calculation of the key components such as air ducts are carried out.Secondly,the structure of the extinguisher is designed using UG,and the statics analysis and modal analysis modules in ANSYS software are used for simulation analysis of the machine frame to verify the rationality of the design of the machine frame.Finally,the prototype is trial-produced.Compared with the hand-held 6MF-32 extinguisher commonly used in China,the distance between the pneumatic extinguisher and the 6MF-32 extinguisher is 5 m and 2.5 m,respectively.The experimental results show that in seven comparative trials,when the combustible weight is greater than 2.5 kg,the 6MF-32 extinguisher not only takes a long time to extinguish the fire,but also appears reignition after extinguishing.When the combustible weight reaches 3.5 kg,the wind extinguisher appears reignition after extinguishing.But in all comparison tests,the fire extinguishing time designed in this paper is less than that of the hand-held 6MF-32 fire extinguisher,so it can be seen that the designed wind extinguisher has advantages in extinguishing distance and efficiency.
维普
万方数据