摘要
鉴于目前常见的大、中型喷射火灾施救普遍存在效率低、代价高而且方法、器材的通用性差等问题,针对所提出的先脱后灭的脱火法灭火新思想,用专门制作的原理性实验装置对其进行实验分析。结果表明:随着流量的增大,扰流的脱火效能明显加强;随着入射角度的减小,脱火效能逐渐增大;入射距离对脱火效能的影响则存在"平稳区",该区域随着流量的增大而减小。
In order to overcome the shortcomings of the existing extinguishing technology against big and middle scale jet fire, like low efficiency, high cost and bad commonality, the new technology of which the key is ＂lift-off then put-out＂ was introduced. The experimental sets were made, and the confirming experiments were done. The study results show that the lift-off efficiency of the perturbation flow improves as flux increases; it also improves as the incidence angle decreases; the influence of incidence distance shows a stable-zone, which decreases as the flux rises.
出处
《消防科学与技术》
CAS
北大核心
2011年第2期151-155,共5页
Fire Science and Technology
关键词
消防技术
喷射火
射流
脱火
灭火
fire protection technology
jet fire
jet flow
lift-off fire
fire-extinguishing
