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为了改善消防水炮的水射流性能,提高其消防灭火效率,设计了一种新型固定式消防水炮,并对其流道能量损失及炮头水流出口速度进行了水力学理论计算。采用Fluent流场仿真软件对炮身内部流体流态进行了仿真分析,得到较好的炮身形状及结构;对消防水炮炮头喷嘴射流性能进行了仿真分析,比较了直流射流和喷雾射流这两种射流方式的效果;最后进行了初步的现场射流实验。仿真结果和实验测试表明:所设计的新型固定式消防水炮能满足实际消防作战使用要求,相关结论可为其它规格和类型的消防水炮设计提供参考依据。
In order to improve the water jet performance of the fire hydrant and improve its fire extinguishing efficiency, a new type of fixed fire hydrant was designed. The theoretical calculation of the energy loss of the runner and the outlet velocity of the nozzle was carried out. Fluent flow field simulation software was used to simulate the fluid flow inside the gun body to get a better shape and structure of the gun body. The jet nozzle performance of fire-resistant gun was simulated and compared. The direct jet and the jet jet were compared Two kinds of jet effect; Finally, a preliminary field jet experiment. The simulation results and experimental tests show that the new fixed fire-fighting water cannons can meet the requirements of actual fire fighting operations, and the relevant conclusions can provide references for other specifications and types of fire-fighting water cannons.