论文部分内容阅读
气压对燃烧过程影响显著,常压环境下的火灾探测器标准不适用于高原环境。以高原环境下的点型感烟火灾探测器为研究对象,根据合肥及拉萨两地的国标探测器正庚烷标准火测试对比试验,研究高原环境对火灾烟气及点型离子、光电感烟探测器响应规律的影响。结果表明,对于相同火源,光电感烟探测器在高原环境下的响应明显弱于常压环境,而离子感烟感测器所受影响相对较小。依据试验结果,提出高原环境下点型感烟探测器的工程参数调整建议。
Air pressure has a significant impact on the combustion process. Normally, the fire detector standard under atmospheric pressure is not suitable for the plateau environment. According to the standard test of n-heptane standard fire test in Hefei and Lhasa, the point-type smoke detector under plateau environment was taken as research object to study the effect of plateau environment on fire flue gas and point-type ions, photoelectric smoke Effect of detector response law. The results show that for the same source of ignition, the response of photoelectric smoke detector is obviously weaker than that under atmospheric pressure, while the effect of ion smoke sensor is relatively small. Based on the test results, the engineering parameters of point smoke detectors in high altitude environment are proposed.