HE COMPOSITION OF E/R WATER MIST FIRE EXTINGUISHING SYSTEM

机舱水雾灭火系统由细水雾泵组、细水雾分区阀组、火灾自动报警联动控制系统、船用细水雾喷头等组成。当发生火灾时，火焰、感烟探测器将探测到的火灾信号通过火灾报警控制器进行逻辑分析后，启动水泵、开启分区阀对保护区进行喷放灭火，同时声光报警器动作。

E/R WATER MIST FIRE EXTINGUISHING SYSTEM CONSIST OF WATER MIST PUMP GROUP, WATER MIST PARTITION MANIFOLDS, FIRE AUTOMATIC ALARM CONTROL SYSTEM AND MARINE MIST NOZZLES。WHEN FIRE BREAKS OUT, SMOKE DETECTORS FEEDS THE FIRE SIGNAL INTO THE FIRE ALARM CONTROLLER AND THEN ANALYZED IT, AFTER THAT, OPEN THE PARTITION VALVE AND EXTINGUISH FIRE IN THE PROTECTED AREA, IN THE MEANTIME,SOUND AND LIGHT ALARM ACTION.

                                              机舱水雾灭火系统原理图

THE SYSTEM SCHEMATIC DIAGRAM OF ENGINE WATER MIST FIRE EXTINGUISHING

1．供水阀WATER SUPPLY VALVE                     2．泵组PUMPING SET

3．调压阀 PRESSURE REGULATING VALVE         4．试验阀TESTING VALVE

5．安全阀 SAFETY VALVE                             6．分区阀PARTITION VALVE

7．声光报警器SOUND AND LIGHT ALARM          8．细水雾喷头WATER MIST NOZZLE

9．手动报警按钮MANUAL ALARM BUTTON        10．火灾探测器FIRE DETECTOR

11．火灾报警控制柜FIRE ALARM CONTROL CABINET

12．水泵控制柜PUMP CONTROL CABINET

三、系统主要部件THE MAIN COMPONENTS OF SYSTEM

1、细水雾泵组 WATER MIST PUMP GROUP

2、细水雾分区阀    THE PARTITION VALVE OF WATER MIST

本细水雾分区阀为单相流细水雾系统分区控制专用设备。发生火情时，可以自动、机械就地应急启动本分区阀，对相应保护区进行细水雾喷放灭火。

1)      平时常闭；火警时，控制中心启动对应的分区阀，使水顺利通向保护区，向该保护区喷洒细水雾。分区阀的额定工作压力1.6MPa，

2)      紧急情况时，可以转动手柄开启分区阀。分区阀动作后，应由人工调整复位才可再投入使用。

THE WATER MIST PARTITION VALVE IS A SPECIAL  EQUIPMENT FOR SIGNLE-PHASE FLOW WATER MIST SYSTEM PARTITION CONTROL。WHEN THE FIRE OCCURRED，IT CAN BE AUTOMATICALLY， MECHANICALLY ON-SITE EMERGENCY STARTS THIS PARTITION VALVE，THEN PUTTING OUT A FIRE WITH WATER MIST.

1)                  NORMALLY CLOSED：CONTROL CENTER TO START CORRESPONDING PARTITIONS VALVE，THEN WATER FLOW TO THE PROTECTED AREA，PUTTING OUT A FIRE WITH WATER MIST. THE RATED WOKRING PRESSURE OF PARTITION VALVE IS 1.6MPA。