ig-凯发k8555

ig-55惰化消防灭火设计

工程概况

本方案针对萨帕管业新增p27-2收尘器进行ig-55惰化消防灭火设计，也可以直接按此方案对p35-1、p35-2和b300/b400的锌粉收尘器灭火系统进行更换。

（this program for the new p27-2 collector ig-55 inerting design of fire tube industry sapa，the fire extinguishing system of p35-1, p35-2 and b300/b400 can also be replaced directly by this scheme.）

2·设计依据（design basis）

3.1 业主提供的基础图纸（the basic drawings provided by the owner）

3.2相关规范和国家标准（relevant codes and national standards）

•《建筑设计防火规范》（code for fire protection design）（gb50016-2006）

•《气体灭火系统施工及验收规范》（code for construction and acceptance of gas fire extinguishing systems）(gb50263-2007)

•《火灾自动报警系统设计规范》（code for design of automatic fire alarm system）(gb50116-2013)

•《火灾自动报警系统施工及验收规范》（code for construction and acceptance of automatic fire alarm system）(gb50166-2007)

•《钢铁冶金企业设计防火规范》（code for design of fire protection for iron and steel metallurgical enterprises）(gb50414-2007)

• nfpa2001

• nfpa12

3.3现场勘查记录（site investigation record）

3·ig55惰化灭火设计说明

3.1设计范围

本方案主要为萨帕管业p27-2锌粉收尘器设计ig-55自动灭火惰化系统。（this scheme mainly designs the ig - 55 automatic fire extinguishing system for p27-2 zinc dust collector.）报警控制系统使用海湾jb-qb-gst100消防报警系统。（the alarm control system uses the bay jb-qb-gst100 fire alarm system）

 3.2 ig-55灭火系统保护的优势

3.3设计方案

3.3.1防护区要求：（protection zone requirements）

（1）采用全淹没灭火系统的防护区，应符合下列规定：（the protective zone for a fully flooded fire extinguishing system shall comply with the following provisions）

●对固体深位火灾，除泄压口以外的开口，在喷放氮气氩气前应能自动关闭。（to a deep solid fire, in addition to opening pressure relief opening outside, should be able to automatically shut down in nitrogen argon before discharge）

●防护区的围护结构及门、窗的耐火极限不应低于0.5小时，吊顶的耐火极限不应低于0.25小时；维护结构及门窗的允许压强不宜小于1200pa。（fire resistance of retaining structure, and door window area should not be less than 0.5 hours, the fire resistance limit ceiling should not be less than 0.25 hours; the pressure should not be allowed to maintain the structure and the doors and windows of less than 1200pa）

●防护区用的通风机和通风管道中的防火阀，在喷放氮气氩气前应能自动关闭。（fire protection valve for ventilation and ventilation in the pipeline, should be able to automatically shut down in nitrogen argon before discharge）

（2）启动释放氮气氩气之前或同时，切断可燃、助燃气体的气源。（before starting the release of nitrogen and argon, the gas source of flammable and combustion supporting gas is cut off at the same time）

（3）启动释放氮气氩气之前或同时，切断非消防电源。  （cut off non fire power before or after starting release of nitrogen and argon） 

3.3.2设计参数：

根据nfpa2001规定......

最终我们确定的设计参数为：

（1）设计温度： 20℃；

 （2）灭火浓度： 62%；

 （3）初次灭火时间： 1min；持续灭火时间：6min；

finally, the design parameters we determined are:

(1) the design temperature 20 ℃;

(2) fire-fighting concentration: 62%;

(3) initial fire-fighting time: 1min; duration of fire-fighting: 6min;

本项目各保护区参数如下表：

3.3.3用量计算volume calculation

3.3.3.1初放计算the first gas discharge calculation

初放可根据规范规定的公式进行计算：

3.3.3.2续放计算the follow-up system calculation

3.3.4系统组成及工作原理（system composition and working principle）

3.3.4.1系统组成结构（system composition structure）

系统由报警控制主机，联动模块、声光报警、启动按钮、灭火剂存储装置、启动气体储瓶、电磁瓶头阀、选择阀、单向阀、安全阀组、压力开关、框架、喷嘴、管道等组成。见下图：（the system comprises an alarm control host, linkage module, sound and light alarm, start button, fire extinguishing agent storage device, gas storage bottle, start the bottle head valve, electromagnetic selector valve, one-way valve and a safety valve group, pressure switch, frame, nozzle, pipeline etc.. see below） 

3.3.4.2系统主要参数如下表所示：（the main parameters of the system are shown in the following table）

使用环境温度 ℃（use ambient temperature）0～50

工作压力（working pressure）公称工作压力（nominal working pressure）(20℃时) （mpa）15.0

最大工作压力（maximum operating pressure）(50℃时) （mpa）17.2

灭火剂储瓶公称容积（nominal volume of extinguishing bottle）（l）70 90

灭火剂储瓶公称充装量（nominal number of bottle for extinguishing agent）(1atm,20℃)  （kg）14.819.0

灭火系统电磁瓶头阀工作电压（extinguishing system; electromagnetic bottle head valve; working voltage）  (v)dc24±3

系统启动方式（system startup mode）自动控制、手动控制、机械应急操作（automatic control, manual control, mechanical emergency operation）

启动气体充装压力（starting gas filling pressure）（20℃时）(mpa)6.0

3.3.4.3系统启动方式：（system startup mode）

系统具备自动、电气手动、机械应急手动控制方式。有声、光报警、火警及联动接点输出等功能。（the system has automatic, electrical, manual and mechanical emergency manual control mode. sound, light alarm, fire alarm and linkage contact output function.）

3.3.4.4系统工作原理图

3.4 系统主要部件（main components of the system）

3.4.1 容器阀hrf12/17.2（container valve）

3.4.2驱动气体瓶组容器阀hrf5/6.6（container valve for driving gas bottle set）

3.4.3选择阀hxz（25～125）/17.2

3.4.4单向阀qd6/6.6

3.4.5信号反馈装置xf0.8/17.2

3.4.6安全阀hax24.5

3.4.7 减压装置（decompressor）

3.4.8 容器hr4/6.6

3.4.9容器hr

3.4.10喷嘴hpt

4·火灾自动报警和灭火控制系统（automatic fire alarm and fire extinguishing control system）

4.1 设计思想（design idea）

利用原火灾报警控制系统。（use the original fire alarm control system）

4.2设计方案（design scheme）

根据用户提供的设计说明，制定如下设计方案：（according to the user's design instructions, the following design scheme is formulated）

1、参考p35-2系统的脉冲收尘器和旋风收尘器的火灾探测，均采用管状差定温探测器，报警温度为华氏194度（摄氏90度），该探测器兼有定温报警和温升速率报警的功能，对爆燃式火灾具有快速响应的能力。（pulse dust collector and a cyclone dust collector fire detection reference p35-2 system, using tubular temperature difference detector, alarm temperature is 194 degrees fahrenheit (90 degrees celsius), the detector with fixed temperature alarm and temperature rise rate alarm function, has the ability of rapid response to the explosion of fire.）

每个灭火区域设置两组独立的火灾探测报警回路，探测信号分别引入jb-qb-gst100报警灭火控制系统。当系统探测到一路火警信号时，控制器发出声、光报警信号，显示火警部位及时间，但不运行灭火程序，不释放灭火剂。（each fire extinguishing area is provided with two independent fire detection and alarm circuits, and the detection signals are respectively introduced into the jb-qb-gst100 alarm fire extinguishing control system. when the system detects a fire signal, the controller sends out the sound and light alarm signal to display the fire location and time, but does not run the fire extinguishing program and does not release the extinguishing agent）

当系统探测到两路火警信号时，控制器发出声、光报警信号，显示火警部位及时间，同时启动失火区域的声光报警器，通知现场人员撤离，输出联动信号，切断非消防电源，驱动电磁阀，释放灭火剂。（when the system detects two fire alarm signal, the controller sends out sound and light alarm signal display, fire location and time, and start sound and light alarm fire area, notify the evacuation site, output linkage signal, fire power cut, the solenoid valve, the release of fire extinguishing agent.）

操作人员也可以直接通过安装在保护区内的启动按钮，直接启动声光报警器，驱动电磁阀，实施灭火。（the operator can also directly start the sound and light alarm through the starting button installed in the protective zone, drive the electromagnetic valve and implement fire extinguishing）

2、充分考虑现场的环境，所有管线均按防爆区标准敷设。不同电压等级线路需分管敷设，如在阻燃金属线槽内敷设需加金属隔板。所有明配线路的金属线槽、钢管表面需涂刷防火涂料。（full consideration of the site environment, all pipelines are installed according to the explosion-proof area standard. different voltage level lines should be in charge of laying, such as in the flame retardant metal slot laying, need to add metal clapboard. all the metal wires and steel pipe surfaces of the circuit shall be painted with fire retardant coating）

3、系统采用消防专用电源，以ac220v作为主电源，dc24v蓄电池作为备电源。当主电电压过低不能保证系统正常工作时，自动切换到备电供电，并报主电源故障，当主电恢复正常时，控制柜自动切换到主电供电；当备电电压不能保证系统正常工作时，控制柜报备电欠压故障；当控制柜由备电单独供电、且备电继续供电可能引起备电永久失效时，控制柜会自动切断备电供电电路，以保护备用电源。（the system uses fire special power supply, ac220v as the main power supply, and dc24v battery as the standby power supply. when the main power voltage is too low can not guarantee the normal work of the system, automatically switched to standby power supply, and report to the main power failure, when the main power is restored, the control cabinet is automatically switched to the main power supply; when the power voltage can not guarantee the normal work of the system, the electric control cabinet reported undervoltage fault when the control; prepared by a separate power supply, electric cabinet and power to supply power may cause permanent power failure, the control cabinet will automatically cut off the power supply circuit, in order to protect the standby power）

4、系统采用专用接地装置，工作接地电阻应小于4ω，联合接地时的接地电阻小于1ω。采用交流供电的设备金属外壳、配管、金属支架等作保护接地时，接地线与电气保护接地干线（pe线）相连接。（the system adopts a special grounding device, the grounding resistance shall be less than 4, and the grounding resistance when combined with ground shall be less than 1 ohms. when using ac power supply equipment, metal casing, piping, metal support and so on to protect the ground, the ground wire is connected with the electrical protection grounding line (pe line).）

4.3 系统组成（system composition）

火灾自动报警和灭火控制系统由以下几个子系统组成：（the automatic fire alarm and fire fighting control system consists of the following subsystems）

序号名  称备  注

1.主控系统（ master control system）

2.i/o检测系统（ i/o detection system）gat-ld-8300输入模块、gst-ld-8301输出模块（ gat-ld-8300 input module, gst-ld-8301 output module）

3.紧急操控系统（ emergency handling system）紧急启停按钮（ emergency start stop button）

4.机箱及面板（ cabinet and panel）壁挂式机柜（ wall hanging cabinet）

5.消防专用电源（ special power supply for fire fighting）双路隔离输出（ dual isolated output）

4.4重要部件说明（description of important parts）

4.4.1 jb-qb-gst100型火灾报警控制器（jb-qb-gst100 type fire alarm controller）

4.4.2 gst-ld-8300型输入模块（gst-ld-8300 input module）

4.4.3 gst-ld-8301型输入/输出模块（type gst-ld-8301 input / output module）

4.4.4 hx-100b型火灾声光警报器（model hx-100b fire alarm）

4.4.5 gst-ld-8317型气体释放警报器（model gst-ld-8317 gas release alarm）

5·主要设备清单（list of main equipment）

详见报价清单。（see quotation sheet for details）

6·系统设备布置（system equipment layout）

详见cad图纸。（see cad drawings for details）