干粉灭火系统主要由两部分组成，即干粉灭火设备部分和火灾自动探测控制部分。

The dry powder fire extinguishing system mainly consists of two parts, namely the dry powder fire extinguishing equipment part and the automatic fire detection and control part.

(1)干粉灭火部分由干粉储罐、动力气瓶、减压阀、输粉管道以及喷嘴等组成。

(1) The dry powder extinguishing section consists of a dry powder storage tank, a power cylinder, a pressure reducing valve, a powder conveying pipeline, and a nozzle.

(2)灾自动探测控制部分有火灾探测器、启动瓶、报警控制器等设备。

(2) The automatic disaster detection and control section includes equipment such as fire detectors, starter bottles, and alarm controllers.

系统分类

System classification

1，按灭火方式分为全淹没干粉灭火系统和局部应用干粉灭火系统。

1. According to fire extinguishing methods, it is divided into fully submerged dry powder fire extinguishing systems and locally applied dry powder fire extinguishing systems.

2，按设计情况分为设计型干粉灭火系统和预制型干粉灭火系统。

2. According to the design situation, it is divided into design type dry powder fire extinguishing systems and prefabricated dry powder fire extinguishing systems.

3，按保护对象分为组合分配系统和单元独立系统。

3. It is divided into a combination allocation system and a unit independent system according to the protected object.

4，按驱动气体储存方式分为储气式干粉灭火系统、储压式干粉灭火系统和燃气式干粉灭火系统。

4. According to the storage method of driving gas, it is divided into gas storage dry powder fire extinguishing system, pressure storage dry powder fire extinguishing system, and gas type dry powder fire extinguishing system.

那么，您知道干粉灭火系统为什么不适用于钠、钾等活泼金属的火灾吗？下面川消为您分析一番：

So, do you know why dry powder fire extinguishing systems are not suitable for fires involving active metals such as sodium and potassium? Below, Chuanxiao will analyze for you:

干粉分为ABCD类,ABC类主要成份碳酸氢钠受热分解出二氧化碳和水蒸气

Dry powder is divided into ABCD types, and the main component of ABC type is sodium bicarbonate, which decomposes into carbon dioxide and water vapor upon heating

活泼金属，如钠、钾等都可以与二氧化碳和水反应，其燃烧生成物过氧化钠、过氧化钾、超氧化钾也可以与二氧化碳和水反应，所以金属着火不能用干粉灭火器，只能用沙子盖灭或专用D类干粉灭火器。

Active metals, such as sodium and potassium, can react with carbon dioxide and water, and their combustion products such as sodium peroxide, potassium peroxide, and potassium peroxide can also react with carbon dioxide and water. Therefore, dry powder fire extinguishers cannot be used for metal fires, and can only be covered with sand or specialized Class D dry powder fire extinguishers.

不是这个意思,主要看你灭火系统里用的是哪类干粉。如果你灭火系统里装的是ABC类干粉,就不能用来灭钠、钾等活泼金属的火灾。还有什么问题或者需求，欢迎来我们网站这里http://www.cx-fire.com咨询！

It doesn't mean that, it mainly depends on what type of dry powder you use in the fire extinguishing system. If your fire extinguishing system contains ABC type dry powder, it cannot be used to extinguish fires of active metals such as sodium and potassium. If you have any further questions or needs, welcome to our website http://www.cx-fire.com consulting service