大型船用高倍泡沫发生器参数设计及试验研究  

Parameters and experimental research of high expansion foam generator for large ships

作　　者：汪月勇 乐智斌 邱波 曾忠华 WANG Yue-yong;LE Zhi-bin;QIU Bo;ZENG Zhong-hua(CSSC,China Jiujiang Fire Equipment Co.,Ltd.,Jiangxi Jiujiang 332000,China;Jiangxi Safety Engineering Technology Innovation Center,Jiangxi Jiujiang 332000,China)

机构地区：[1]九江中船消防设备有限公司,江西九江332000 [2]江西省安全工程技术创新中心,江西九江332000

出　　处：《消防科学与技术》2022年第6期767-771,共5页Fire Science and Technology

摘　　要：高倍泡沫发生器作为一种大型舰船使用的消防设备,在扑救LNG和油火方面有着重要作用。发泡倍数作为该设备的重要指标,受风压、风速等参数影响较大,需要开展设计和试验研究。针对导风筒结构的层数、角度和间距等参数开展数值模拟,得到不同工况下发泡网处的风速分布规律,并开展网孔尺寸对发泡倍数的试验研究。结果表明,导风筒层数增加以及角度和间距匹配,能有效提高风速均匀性,网孔尺寸的增大能有效增加风压,但会导致发泡倍数下降。High-expansion foam generator is a kind of fire-fighting equipment used by large ships and plays an important role in fighting LNG and oil fires. The foaming ratio is an important indicator of the equipment, and parameters such as wind pressure and wind speed have a greater impact on it, and design and experimental research are needed. Changing the number of layers, angles and spacing between layers of the air duct, and using numerical simulation analysis, the distribution of wind speed at different working conditions of the foamed mesh is obtained.According to the mesh size parameter, the foaming ratio is tested and researched. The results show that with the increase of the number of air duct layers and the matching of angles and spacings, the uniformity of wind speed can be effectively improved.The increase in mesh size can effectively increase the wind pressure, but it will cause the expansion ratio to decrease.

关 键 词：高倍泡沫发生器 导风筒 发泡倍数 风速 

分 类 号：X937[环境科学与工程—安全科学] U662.2[交通运输工程—船舶及航道工程]