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可恢复式缆式线型感温火灾探测器由可恢复式感温电缆、微机控制器和终端处理器构成,其与火灾自动报警联动控制器、感烟火灾探测器、手动火灾报警按钮、火灾声光报警器、消防设备构成的火灾自动报警与消防联动控制系统,对保护对象的消防安全起到了至关重要的作用。现结合工作实际,阐述了可恢复式缆式线型感温火灾探测器的特点、工作原理及工程应用。 相似文献
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任明 《仪器仪表与分析监测》2000,(3):18-21
本文从组成,分类,应用范围,选择方法及发展趋势等几个方面,对火灾报警探测器进行了简要的介绍,其中着重对点型离子感烟探测器,点型光电式感烟探测器,点型吸气式感烟探测器以及感温,火焰探测器常见火灾探测器的原理,性能,使用环境,响应特点等技术参数进行了概要论述,进而提供了几种常用火灾探测器的简单选择方法,并在此基础上,对这类产品在应用中的发展趋势进行了初步展望。 相似文献
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多层感知器火灾控制器研究 总被引:1,自引:0,他引:1
本文提出了一种新的火灾探测的方法,即一种基于多层感知器(MLP)火灾探测器方案。这使得在火灾探测中的信号处理在方法上做了彻底改进,提高了早期发现火灾的能力。实验结果也表明这在火灾自动探测中是一种十分有效的方法。 相似文献
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针对核电厂的环境特点,为了保障火灾报警系统能够正常、稳定运行,对火灾报警系统的基本要求进行了论述.对核电厂特殊环境进行了分析,提出了火灾报警系统加装抗电涌保护器,以达到抗雷击的目的,对抗电涌保护器在系统中的设置方式进行了论述.针对电缆沟类感温电缆易被强电磁干扰的情况,通过设置接口模块,提高系统的可靠性,对接口模块的工作... 相似文献
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CO气体传感器在火灾探测中的应用 总被引:2,自引:3,他引:2
阐述了火灾燃烧过程CO的释放特性,证明利用CO传感器在火灾早期探测中可以实现比传统探测器提早报警,并降低误报率。同时介绍了现在常见的CO传感器的原理,应用和研究现状,以及目前CO传感器的研究方向:基于光声原理和基于红外光谱法的CO探测方法。 相似文献
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I. A. Levko 《Optoelectronics, Instrumentation and Data Processing》2009,45(2):140-145
Relations between the accuracy of hotspot determination and the monitoring area of remote forest fire detection systems are considered. The indicated characteristics have a significant effect on the efficiency of the systems considered. The efficiency can be increased by simultaneously using visual monitoring means and automated mapping of forest compartments in the monitored area. Procedures for searching the forest compartment number and determining compartment boundaries are discussed. 相似文献
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多年来我们一直想将多种应用嵌入到互联网中,而这些应用(如网络电话、多媒体等等)常常具有实时要求。本文则基于一个具体的火显系统方案,分析了相关的实时特性,给出了相关的网络连接和交换机设计. 相似文献
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介绍了消防应急疏散指示标志的行业现状,提出了一种以激光为光源的消防应急激光导向器.利用激光在任何情况下仍具有的良好的穿透性能,采用激光全息衍射技术,在事故现场为逃生的人员导引出口或安全的方向,起到帮助被困人员自救的作用.是一种新型的消防应急疏散指示标志,适用于公共场所、建筑大楼、机场、地铁、隧道、船舶等各类场所中固定安装或临时架设,其中便携型的消防应急激光导向器特别适合消防部门在地铁、隧道等地下空间发生灾害时快速安装使用. 相似文献
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笔者介绍了某工程火灾自动报警系统方案配置、系统运作模式、消防联动系统的设计、火灾自动报警系统图,供相关设计、施工人员参考使用。 相似文献
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基于多传感器的智能火灾报警器的设计 总被引:1,自引:0,他引:1
同时采用烟雾传感器,温度传感器和火焰传感器来探测火灾现场。使用神经网络对多个传感器探测到的数据进行处理和识别。仿真结果表明。该多传感器的智能火灾报警器能够比较准确的识别火灾信号。准确性较高。误报率较低。 相似文献
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新材料在消防领域的应用 总被引:1,自引:0,他引:1
简介了形状记忆合金、纳米材料、复合材料在消防领域的应用开发现状,着重讨论了三种新型材料的特点、研究现状、应用现状和发展前景,以及存在的问题. 相似文献
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Jintaek Kim Byungjoon Baek Jeekeun Lee 《Journal of Mechanical Science and Technology》2009,23(7):1877-1884
If fire breaks out on an airplane, a large amount of fire extinguishing agents should be discharged within a very short time.
For effective fire extinguishing, increased discharge velocity of the fire extinguishing agents is required. This can be achieved
by using a large-sized vessel in which the fire extinguishing agents are highly pressurized by noncombustible gases. It is
important to understand the flow characteristics of a fire extinguishing system for optimal system design. This study reports
a numerical analysis of the flow characteristics of an airplane fire extinguishing system using halon-1301 as a fire extinguishing
agent. The unsteady flow model was simulated with the general-purpose software package “FLUENT”, to study the flow characteristics
of the fire extinguishing agents in the system. The effects of the rupture surface area and tube diameter on the flow characteristics
were investigated for optimal system design. From the analysis results, it was clarified that the characteristics of the halon
discharge from the end of tube are very sensitive to the rupture surface area and significantly affected by the tube diameter.
This paper was presented at the 7th JSME-KSME Thermal and Fluids Engineering Conference, Sapporo, Japan, October 2008.
Byung-Joon Baek received his B.S. degree in Mechanical Engineering from Seoul National University, KOREA, in 1979. He then received his M.S.
and Ph.D. degrees from Seoul National University, KOREA, in 1981 and University of Missouri-Rolla USA, in 1989, respectively.
Dr. Baek is currently a Professor at Division of Mechanical System Engineering at Chonbuk National University in Jeonju, Korea.
Dr. Baek’s research interests include the thermal control of micro-fluidics.
Jee-Keun Lee received his B.S. degree in Precision Mechanical Engineering from Chonbuk National University, KOREA, in 1986. He then received
his M.S. and Ph.D. degrees from Chonbuk National University, KOREA, in 1992 and in 1998, respectively. Dr. Lee is currently
an associate Professor at Division of Mechanical System Engineering at Chonbuk National University in Jeonju, Korea. Dr. Lee’s
research interests include the measurement of a turbulent flow and sprays using the laser diagnostics. 相似文献