感温自启动灭火管系统应用于密闭空间的试验研究

为了对比Novec 1230（全氟己酮）感温自启动灭火管系统与R236fa（六氟丙烷）感温自启动灭火管系统的灭火效率，采用火灾实体试验的方法，分析了不充压,0.88，1.81 MPa下2系统的灭火时间、破裂动作温度及降温冷却效果。研究结果表明:2种灭火管系统都成功灭火，且 R236fa灭火管系统灭火时间更短；2种灭火管系统的破裂动作温度均在80 ℃以上；不充压和0.88 MPa时，2种灭火管系统降温冷却效果相差不大，但充压1.81 MPa时Novec 1230灭火管系统对环境温度的降温冷却作用更强。

Experimental study on application of temperature sensing self starting fire extinguishing pipe system in confined space

In order to compare the fire extinguishing efficiency of the Novec 1230 (perfluorohexanone) temperature sensing self starting fire extinguishing pipe system with the R236fa (hexafluoropropane) temperature sensing self starting fire extinguishing pipe system,the fire extinguishing time,rupture action temperature and cooling effect of the two systems under 1.81 MPa,0.88 MPa and no pressure were analyzed by using the method of fire physical experiment.The results showed that both the two fire extinguishing pipe systems could extinguish the fire successfully,and the R236fa fire extinguishing pipe system had a shorter fire extinguishing time.The rupture temperatures of the two fire extinguishing pipe systems were both above 80 ℃.When the pressure was 0.88 MPa and no pressure,the cooling effect of the two fire extinguishing pipe systems had little difference,but the Novec 1230 fire extinguishing pipe system had better cooling effect on the ambient temperature when the pressure was 1.81 MPa.