七氟丙烷（HFC—227ea）灭火系统

七氟丙烷（又称FM200）是洁净气体灭火剂,ZYJ－100是新研制的七氟丙烷灭火系统,该文介绍了系统的组成、系统使用维护等内容,并附计算实例。     

七氟丙烷灭火剂和灭火系统

哈龙1211和1301灭火剂具有不导电、挥发快、无残留物、灭火效率高、扑灭火灾类型较广等优势，80年代以来在我国的灭火器和固定灭火系统上得到了广泛应用。但自科学家发现哈龙1211和1301灭火剂中含有的溴、氯元素会破坏大气中臭氧层以后，立即引起了国际社会的关注，并采取了相应的行动对其停止生产和逐步淘汰，研究新的替代物质．     

七氟丙烷（HFC—227ea）在灭火应用方面的局限性

本文列出了七氟丙烷灭火浓度、惰化浓度、毒性的试验结果,并指出为了减少火场分解出毒性HF的生成量,适当提高灭火浓度和缩短喷放时间是必要的。七氟丙烷不太适用于局部应用系统。     

七氟丙烷灭火系统试验研究

文章介绍了ISO14520-1气体灭火系统——物理性能和系统设计中对气体灭火系统灭火试验的要求和试验步骤.按照上述标准规定,进行了七氟丙烷灭火系统灭火试验.     

七氟丙烷灭火系统IG-541混合气体灭火系统

昆山宁华阻燃化学材料有限公司生产七氟丙烷灭火系统和 IG- 5 41混合气体灭火系统 ,分别简介如下 :　　一、七氟丙烷 ( HFC-2 2 7ea)灭火系统七氟丙烷 (HFC- 2 2 7ea)是到目前为止研究开发比较成功、各项指标较为合理并可替代卤代烷的一种洁净气体灭火剂 ,七氟丙烷 (HFC- 2 2 7ea)灭火系统目前在我国及世界各国和地区已广泛应用。HFC- 2 2 7ea灭火剂是以化学方式为主的气体灭火剂 ,分子式为 CF3 CHFCF3 ,化学名称为七氟丙烷 ,其特点是无色、无味、不导电、无二次污染、对臭氧层的耗损潜能值 (ODP)为 0 ,具有良好的环保性能。该公…     

七氟丙烷自动灭火系统的安装与调试

结合山西国际贸易中心灭火系统工程实践，就七氟丙烷自动灭火系统的特点进行了介绍，阐述了该系统的主要技术参数，提出了系统的安装和运行调试措施。     

七氟丙烷自动灭火系统综述

介绍了七氟丙烷自动灭火系统的灭火原理、基本组成、主要功能、适用范围以及系统使用、维护等     

七氟丙烷灭火系统应用之优化

分析了减少分解物 HF生成量的方法 ,并阐述如何改进系统设计加以实现 ,以及提高灭火效果 ,改善组合分配系统设计条件。     

氮气在七氟丙烷中的溶解度测定及计算

为研究氮气在七氟丙烷内的溶解度,利用PVT实验装置测定了在不同温度和压力下氮气在七氟丙烷内的溶解度,并系统讨论了温度、压力对溶解度及亨利系数的影响,结合实验数据,建立了氮气在七氟丙烷内的溶解模型。研究表明,温度有利于氮气在七氟丙烷中的溶解;压力不利于氮气在七氟丙烷中的溶解;氮气在七氟丙烷中的溶解模型拟合数据效果较高,最大偏差未超过3%。     

七氟丙烷灭火系统在铁路内燃机车上的应用

从铁路内燃机车的火灾危险性分析着手，根据内燃机车的结构和环境特点，提出了七氟丙烷灭火系统应用的可行性，并分析研究了应用中的难点和解决方案．通过模拟试验验证了七氟丙烷系统在气流交换量较大的列车上使用的可行性并基本适宜在机车上采用。     

浅谈火灾自动报警及灭火系统在大型装卸机械上的应用

作者分析了集装箱桥吊电气房的火灾因素,提出了适宜桥吊电气房的火 灾报警及灭火系统类别并对具体的设置位置进行了分析。     

七氟丙烷灭火系统管路阻力损失试验研究与计算方法

为分析及计算七氟丙烷在管道中的流动阻力损失，在试验研究的基础上，采用计算流体力学软件FLUENT进行模拟计算，并与试验数据相比较，得出在七氟丙烷灭火系统管路流动特性研究中，采用计算机模拟计算替代昂贵的试验是可行的。     

细水雾灭火系统技术经济性分析

以某银行消防系统改造工程项目为例,比较了细水雾灭火系统和七氟丙烷气体灭火系统的材料设备造价和施工维护费用。从经济造价的角度,探讨细水雾灭火系统在实际工程应用中替代气体灭火系统的可能。并给出了细水雾灭火系统应用于实际工程的一些建议。     

三氟甲烷灭火系统设计计算

介绍了三氟甲烷灭火系统设计计算流程,灭火剂设计用量、流体计算等设计参数的确定方法.     

Clean Agent System Utilizing FM-200® and Automatic Sprinkler System

Data processing and telecommunication (telco) facilities are commonly protected against fire with a clean agent system, an automatic sprinkler system, or with both a clean agent and an automatic sprinkler system. The degree of protection provided by these systems is vastly different, as is the cost incurred in employing these systems.Comparison testing of a clean agent system utilizing FM-200® (HFC-227ea) and an automatic sprinkler system was performed in order to illustrate the differences in the protection provided by gaseous clean agent systems and automatic sprinkler systems. The tests were performed in a simulated data processing/telecommunications facility, and examined the performance of the suppression systems on a plastics fire located inside a metal electronic equipment cabinet.In the clean agent system test, the fire was detected while it was small in size and was extinguished 17 sec after system actuation. Damage to the simulated facility and its contents was limited solely to the dislodging of several ceiling tiles near the clean agent nozzle, and a slight scorching of the cabinet containing the fuel array. The facility could be re-occupied and all systems within the facility, other than those damaged inside the cabinet involved in the fire, would be functional immediately following the extinguishment of the fire. Cleanup of the facility would not be required prior to its use following the fire event, as no residues were produced during extinguishment.Under the identical fire scenario, the automatic sprinkler system actuated approximately three minutes later than the clean agent system, and the fire was not extinguished by sprinkler system. The sprinkler system did achieve its primary objective of containing the fire to the room of origin and managing the temperatures at the ceiling to prevent structural damage and/or collapse, as the suspended ceiling remained intact, and the fire did not spread beyond the cabinet that contained the fuel array. Damage to the simulated facility was much more extensive than that resulting from the clean agent system test. All ceiling tiles were discolored and the tiles around the sprinkler heads that activated were warped and sagging. The walls were discolored throughout the entire simulated facility and a dark ring of varying intensity and width was observed just below the level of the suspended ceiling. Paper items located within the simulated facility suffered extensive water damage, and the simulated facility floor was covered in water containing large amounts of soot. Immediate reoccupation of the facility and resumption of business would be impossible under these circumstances, as the fire and smoke damage experienced by the facility and its contents would require the replacement of the facility walls, ceiling, and floor, and would likely require the replacement of water-damaged electronic equipment.The test results are discussed in detail as are the implications of the results in the design of fire protection systems for data processing and telecommunication type facilities.     

SP合成型泡沫喷淋灭火系统的应用探讨

本文简要介绍了SP合成型泡沫喷淋灭火系统的原理和特性,并且与其它灭火系统进行了比较,论述了系统的设计计算,阐明了该系统具有高效、安全、经济的特点,具有广泛的应用前景。     

七氟丙烷（HFC—227ea）灭火剂管路流动特性

为进行七氟丙烷灭火剂管路流动特性的研究,作者设计了实际系统装置并进行测量和记录,图2－图5记述了测量结果。其结果能满足工程应用的需要。     

论干粉灭火系统的应用

本文概述了干粉灭火系统的组成、生产厂家应提供的必要图表、工程应用设计计算方法。