7.The paper aims at the error action of outfire's protection,gives accident analysis,and puts forward improving project.So it can improve the reliability of outfire's protection.
8.According to action principle, extinguishing process and efficiency of the sprinkler systems, it is put forward that the ringed arrangements replace the ramiform arrangements.
9.In large space building,several environment actors disadapt current fire detectors in early-stage fire detecting,such as width and scope of space,velocity of airflow,dust,temperature and humidity.
10.Comparison experiments of water mist with polycomponent water mist,and the test on polycomponent water mist's extinguishing efficiency against ethanol and ethanol motor spirit fire were done.