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在一些大型工业厂房、大型库房、中央大厅、体育馆等高大建筑的消防设计过程中,选择何种形式的火灾探测器成为一个困扰我们的问题。传统的点型探测器在这种高大空间很难提供有效地保护,因为探测器通常安装在指定的位置,由于烟雾具有分层现象,烟雾都很难到达顶部的探测位置,以致于无法准确报警。而能够检测到烟雾浓度的光束型感烟探测器系统则相对不够灵敏,而且需要有固定的安装位置。钢结构建筑在日照和风力作用下都会稍有位移,导致光束不能对准。再者,对探测器的日常维护和试验在此类高大建筑中通常很难且需要昂贵的设备。因此,需要选择一种更加适合高大空间建筑内的探测器,使其既要弥补传统探测器的不足,又要达到灵敏度高、安装可靠、适应性强、维护简便等要求,而空气采样式极早期烟雾探测系统则正是能够实现上述全部要求的火灾报警系统。
In some large-scale industrial plants, large warehouses, the central hall, stadiums and other tall buildings in the fire design process, the choice of what form of fire detectors become a problem that bothers us. Conventional point-type detectors find it hard to provide effective protection in such large spaces because the detectors are usually installed in designated locations and smoke can hardly reach the top of the probe due to the stratification of the smoke, making it impossible to accurately alarm . A beam-type smoke detector system capable of detecting smoke concentration is relatively insensitive and requires a fixed installation location. Steel structures are slightly displaced under sunshine and wind, resulting in a beam that can not be aligned. Furthermore, the routine maintenance and testing of detectors is often difficult and requires expensive equipment in such tall buildings. Therefore, it is necessary to choose a more suitable detector in a tall space building so that it not only needs to make up for the deficiencies of traditional detectors, but also achieves the requirements of high sensitivity, reliable installation, strong adaptability and easy maintenance, while the air sampling pole Early smoke detection systems were exactly the kind of fire alarm system that fulfilled all of the above requirements.