2.1 系统结构
1C31189G01依据新建商场的配电情况分布情况,在线监测系统建设采用分层分布式结构,系统包括:站控管理层、网络通讯层、现场设备层。系统网络结构如图2所示:
站控管理层管理人员与计算机进行人机交互的直接窗口,对采集的现场各类数据信息计算、分析与处理,并以图形、数显、声音等方式反映现场的运行状况,是系统的最上层部分。主要由系统软件和必要的硬件设备,如工业级计算机、打印机、UPS电源等组成。
通讯层使用的设备为NPORT5630-8串口服务器。该层是数据信息交换的桥梁,负责对现场设备回送的数据信息进行采集、分类和传送等工作的同时,转达上位机对现场设备的各种控制命令。
1C31189G01 现场设备层主要是连接于网络中用于电参量采集测量的各类型的仪表等,也是构建该配电系统必要的基本组成元素。现场配置长沙威盛的DDSY102、DTSY341预付费式电能表,实现每个回路三相电流、三相电压、频率、功率、四象限电能等电参量监测;并对每个回路断路器分合闸状态进行监测。
2.2 网络设计
电力监控系统中的网络系统能够及时的对数据进行传输,并迅速传递操作指令,是实现电力监控系统各项功能的基础。把现场每个设备就地与总线连接,之后在把各条总线全部接入通讯网关,来实现与主机的传递。
2.3监控系统软件功能设计
系统依据客户实际需求进行设计,并实现了一次主接线图界面显示;电参量遥测及电参量越限报警;事件记录;系统运行异常监测;故障报警及操作记录;报表查询与打印;系统负荷实时、历史曲线,用户权限管理等主要功能。
2.3.1数据的采集与处理
1C31189G01数据采集主要包括模拟量以及开关量的采集。模拟量的采集主要是对线路电压、电流、功率、功率因数、频率等信息进行采集,开关量的采集则主要是对断路器、隔离开关、接地刀闸等设备的工作状态,以及断电保护、运行故障等报警信息进行采集,实现远程数据的本地实时显示。数据处理主要是把按要求采集到的电参量实时准确的显示给用户,达到配电监控的自动化化和智能化要求,同时把采集到的数据存入数据库供用户查询。
3 监控系统主机及监控模块的安装位置
3.1监控系统主机的安装位置
小型系统主机壁挂式安装,应设置在消防控制室内,未设置消防控制室的小型建筑,监控系统应设置在有人值班的场所。大型系统可采用台式或柜式,监控系统主机及图形显示装置应设置在消防控制室内。
3.2监控模块的安装位置
监控模块安装在被监控消防设备供电电源附近的专用箱内,也可以安装在被监控消防设备供电电源箱内;监控模块应设置在末端,系统的电压传感器和电流传感器的设置应保证整个消防系统的供电电源工作状态均能在监控模块或消防控制室内实时显示。
4 消防设备电源监控系统的形式选择和设计要求
消防设备电源监控系统作为一个相对独立的监控系统,其系统构架与火灾自动报警系统相似。小型建筑可采用监控主机系统,如图4所示;
5.jpg
图4 中小型监控系统网络拓扑结构图
大型建筑或建筑群可采用集中监控主机加多个区域监控主机系统,如图5所示。
6.jpg
图5 大型监控系统网络拓扑结构图
1C31189G01主机至监控模块间传输距离大于产品要求是,需加中继器占用1个监控模块地址,中继器AC 220V电源由现场消防电源或消防监控室监控主机提供,每个中继器可带32个监控模块。监控主机电源为AC 220V,备用电源可自带,也可现场提供。设计中应注意监控模块工作电源必须由监控主机或中继器供电,不能直接取市电,监控主机或中继器为连接的所有监控模块供电(DC 24V)。
5 结束语
《火灾自动报警系统设计规范》和《消防设备电源监控系统》等规范标准为设计单位进行消防设备电源监控系统的设计提供了技术规范依据。
消防设备能否正常工作取决于消防设备供电电源的工作状态是否稳定良好运行。为了保证建筑物内的消防电源在任何时候任何情况下不断电,切实消除消防安全隐患、保障消防安全,设置消防设备电源监控系统是必要的。设置消防设备电源监控系统能对整个建筑消防安全实施科学管理,让消防设备做到真正意义上的“预防为主、防消结合”。
关键词: 电气火灾;监控系统;Acrel-6000/B
摘要:本文简述了电气火灾监控系统的组成原理,分析了电气火灾监控系统在应用中的设计依据和相关规范。最后通过安科瑞剩余电流式电气火灾监控系统在西安妇幼保健医院项目的实例介绍,阐述了电气火灾监控系统功能的实现及其重要意义。
0 概述
西安妇幼保健医院位于陕西省西安市曲江新区南绕城公路和雁翔路十字西南角。本次项目为西安妇幼保健医院配电室40只ARCM200L系列仪表,分布在地下二层的配电室内。本项目主要负责监控现场分布于配电室中低压配电柜出线的漏电状况,及时提醒消控室值班人员,以防止电气火灾的发生。
西安妇幼保健医院现场有剩余电流式仪表40只ARCM200L安装于配电室内。现场仪表采用总线方式接至消控中心的Acrel-6000/B壁挂式电气火灾监控系统。
1 参考标准
近年来,国家为了加大电气火灾监控防范的力度,相继制订或修改了一批相关标准规范,加强对电气火灾的预防。主要有:
1.1.GB50045-95(2005版)《高层民用建筑设计防火规范》,其中在条文9.5.1里规定:高层建筑内火灾危险性大、人员密集等场所宜设置漏电火灾报警系统。
1.2.GB50016-2006《建筑设计防火规范》,在条文11.2.7里规定:下列场所宜设置剩余电流动作电气火灾监控系统。这些场所包括各种类型的影剧院、馆所、仓库、住宅小区、医院、商店、学校等等。
1.3.国家标准《建筑电气火灾预防要求和检测方法》有关条文也明确要求“应在电源进线端设置自动切断电源或报警的剩余电流动作保护器”。
1.4.电气火灾监控系统的产品应满足:GB14287.1-2005《电气火灾监控设备》、 GB14287.2-2005《剩余电流式电气火灾监控探测器》、GB14287.3-2005《测温式电气火灾监控探测器》
1.5.电气火灾监控系统的安装和运行应满足GB13955-2005《剩余电流动作保护装置安装和运行》
1.6.电气火灾监控系统的供电应满足GB50052《供配电系统设计规范》的要求
1.7.电气火灾监控系统的设计应满足《电气火灾监控系统的设计方法》的要求(暂行规定)
2、系统组成
1C31189G01西安妇幼保健医院电气火灾项目由电气火灾监测后台,电气火灾探测器以及漏电流互感器组成。
本项目通讯总线共接入二条通讯总线,总线在配电室手拉手串接后,接入壁挂式后台,组成电气火灾系统的大动脉。箱体中漏电流互感器通过电流线接入漏电探测器,漏电探测器实时显示漏电情况。以上所述组成一套信号稳定,精度可靠的电气火灾监测系统。本系统组网共分为三层
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Details about TROMPETER ELECTRONICS LPW-75 NSFP LPW75
Details about SATCO 15T6/F NSFP 15T6F
Details about SIEMENS 3SB3-000-1A USPP 3SB30001A
Details about RELIANCE ELECTRIC 707226-10J USPP 70722610J
Details about Toshiba EX25 MDO-6263 output module NIB
Details about SGS THOMSON IC1675A FNFP IC1675A
Miller A81B2N-03.25-5.000-0100-N11-0 Pneumatic Cylinder
YASNAC YASKAWA MOTOMAN IR110TFD CACR IR SERIES DRIVE TOP BOARD
Details about TRANSCELL FAK-6 NSPP FAK6
Details about FURNAS ELECTRIC CO 3SB1-400-0C NSPP 3SB14000C
WESTINGHOUSE ITAP-361 USPP ITAP361
MITSUBISHI KPN USPP KPN
Details about DONALDSON P535770 NSPP P535770
Details about FURNAS ELECTRIC CO 42EF35AF USPP 42EF35AF
MITSUBISHI FX0N-0MR-001 FXON-0MR-001 free ship
RELIANCE ELECTRIC 0-55325-8 USPP 0553258
Customs services and international tracking provided
Details about Brook Crompton Betts 3 phase flame proof motor AE908 E504519 1.1kW 1.5 HP 415V
Details about Siemens S5 6eS5 460-7LA11 Analogue Input PLC Module
Details about RUSSELL STOLL 601-TB USPP 601TB
Details about NATIONAL SEMICONDUCTOR IC3909N FNFP IC3909N
Details about FURNAS ELECTRIC CO 52NL13 NSFP 52NL13
WESTINGHOUSE PCB-LC600 NSFP PCBLC600
Details about FURNAS ELECTRIC CO 3SB3-420-0B USPP 3SB34200B