主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (8): 1130-1134.

• • 上一篇    下一篇

固定式压缩空气泡沫系统单喷头喷洒特性及灭火效能

赵森林1，熊慕文1，文沛1，王管建1，韩焦1，石祥建1，高旭辉2，林语1   

  1. 1. 南京南瑞继保电气有限公司，江苏南京211102；2. 九江中船长安消防设备有限公司，江西九江332000
  • 出版日期:2020-08-15 发布日期:2020-08-15
  • 作者简介:赵森林(1981-),男,安徽桐城人，南京南瑞继保电气有限公司高级工程师,主要从事特高压直流控制保护及特高压换流变压器消防研究，江苏省南京市江宁开发区苏源大道69 号，211102。
  • 基金资助:
    国网安徽省电力有限公司电力科学研究院科学技术项目“特高压换流站大型换流变压器重大消防器材关键技术研究与应用”

Spraying characteristics of single nozzle and fire extinguishing test of fixed compressed air foam system

ZHAO Sen-lin1，XIONG Mu-wen1，WEN Pei1，WANG Guan-jian1，HAN Jiao1，SHI Xiang-jian1，GAO Xu-hui2，LIN Yu1   

  1. 1. Nanjing NR Electric Co., Ltd., Jiangsu Nanjing 211102,China; 2. CSSC Jiujiang Changan Fire Fighting Equipment Co.,Ltd., Jiangxi Jiujiang 332000, China
  • Online:2020-08-15 Published:2020-08-15

摘要： 对5 种典型结构喷头进行了单喷头喷洒压缩空气泡沫和纯水试验，对喷洒介质在底面上的密度分布以及喷洒的泡沫25%析液时间进行比较分析。研究发现，喷头结构类型和流动参数都会影响泡沫析液特性，喷头内部旋芯会使泡沫稳定性降低；下垂式水喷头的底面分布均匀性较好，而扰流喷头和两种七孔喷头的底面分布均匀性相对较差，且下垂式水喷头和扰流喷头在更高的压力和流量条件下的底面分布均匀性降低；同时，压缩空气泡沫系统的喷头选型可以在一定程度上参考相应喷头的喷水特性。选用最优性能参数喷头，建立火灾模型，开展固定式压缩空气泡沫系统全尺寸变压器热油火灾试验，验证喷头与固定式系统的适配性。

关键词: 压缩空气泡沫, 喷头, 分布密度, 25%析液时间

Abstract: A single nozzle spray of compressed air foam and pure water experiments have been conducted with of five typical types of nozzles. The density distribution of the spray medium at the bottom surface and the 25% liquid separation time of the sprayed foam are compared and analyzed. It is found that the structural type and flow parameters of the nozzles will affect the foaming characteristics of the foam. The internal core of the nozzles will reduce the foam stability; the uniformity of the bottom surface of the suspended nozzles is relatively good, while the turbulent nozzle and two types of seven- hole nozzles are relatively uniform, besides, the uniformity of the bottom surface distribution of the suspended nozzle and the gas nozzle under higher pressure and flow conditions is reduced; Meanwhile, nozzles selection of the compressed air foam system can refer to the corresponding nozzle's water spray characteristics. Based on the research, optimal performance nozzle was selected, the fire model was established, and full- scale transformer hot oil fire test of the fixed compressed air foam system was carried out to verify the adaptability of the nozzle and the system.

Key words: compressed air foam, nozzle, distribution density;25% liquid separation time