摘要
为针对导流式消防炮炮头内部压损较大以及出口速度难以通过除了采用提高流量外的其他方式来进行提升的问题,本文以导流式消防炮的炮头以及炮身部分作为研究对象,采用数值计算方法,利用CFD商业软件对导流式消防水炮在不同流量以及加导流结构后的内部流动特性进行分析,结果发现:管道内的流速以及压力损失随着流量的增大而增大;加导流装置后可以大幅降低管道压力损失以及能量损耗,此外还能使出口动压得到有效提升,这会在一定程度上提升消防喷水射程,为以后类似消防炮的设计提供了一定的指导。
In order to solve the problem that the internal pressure loss of the diverter fire gun head is large and the exit velocity is difficult to be improved by other means other than increasing the flow rate, this paper takes the gun head and body part of the diverter fire gun as the research object and adopts the numerical calculation method. CFD software was used to analyze the internal flow characteristics of the diverting fire cannon at different flow rates and with the diverting structure. The results showed that the flow rate and pressure loss in the pipeline increased with the increase of the flow rate. After adding the diversion device, the pressure loss and energy loss of the pipeline can be greatly reduced. In addition, the dynamic pressure of the outlet can be effectively improved, which will improve the fire spray range to a certain extent, and provide certain guidance for the design of similar fire cannons in the future.
出处
《自然科学》
2023年第2期209-220,共12页
Open Journal of Nature Science
