气体灭火系统一般由瓶组、选择阀、喷头、单向阀、集流管、连接管、泄放装置、驱动装置、检漏装置、信号反馈装置、低泄高封阀、管路管件等部件构成。下面川消小编为您展开解说下。

The gas fire extinguishing system is generally composed of bottle group, selector valve, nozzle, one-way valve, collecting pipe, connecting pipe, safety relief device, driving device, leakage detection device, signal feedback device, low pressure relief and high pressure sealing valve, pipe fittings and other components. Now, let's introduce Chuanxiao.

一、瓶组

1、 Bottle group

瓶组一般由容器、容器阀、泄放装置、虹吸管、取样口、检漏装置和充装介质等组成，用于储存灭火剂和控制灭火剂的释放。

The bottle group is generally composed of containers, container valves, safety relief devices, siphons, sampling ports, leak detection devices and filling media, which are used to store fire extinguishing agents and control the release of fire extinguishing agents.

容器是用来储存灭火剂和启动气体的重要组件，容器分为钢质无缝容器和钢质焊接容器。储存装置的容器与其他组件的公称工作压力，不应小于在高环境温度下所承受的工作压力。

The container is an important component for storing fire extinguishing agent and starting gas. The container is divided into steel seamless container and steel welded container. The nominal working pressure of containers and other components of storage devices shall not be less than the working pressure under high ambient temperature.

二、选择阀

2、 Selector valve

选择阀用于组合分配系统，控制灭火剂经管网释放到预定防护区或保护对象，选择阀设置应与防护区一一对应。选择阀可分为活塞式、球阀式、气动启动型、电磁启动型、电爆启动型和组合启动型等类型。选择阀的位置应靠近储存容器且便于操作。

The selector valve is used for the combined distribution system to control the fire extinguishing agent to be released to the predetermined protection area or object through the pipe network. The setting of the selector valve shall correspond to the protection area one by one. The selector valve can be divided into piston type, ball valve type, pneumatic start type, electromagnetic start type, electric explosion start type and combined start type. The selector valve shall be located close to the storage container and easy to operate.

三、喷头

3、 Sprinkler head

喷头是用来控制灭火剂的流速和喷射方向的组件，是气体灭火系统的一个关键部件，喷头可分为全淹没灭火方式用喷头和局部应用灭火方式用喷头。局部应用灭火方式用喷头又分为架空型喷头和槽边型喷头。喷头的布置应满足喷放后气体灭火剂在防护区内均匀分布的要求。当保护对象属可燃液体时，喷头射流方向不应朝向液体表面。

The sprinkler is a component used to control the flow rate and spraying direction of fire extinguishing agent, and is a key component of the gas fire extinguishing system. The sprinkler can be divided into the sprinkler for total flooding and the sprinkler for local application. Sprinklers for local application of fire extinguishing are divided into overhead sprinkler and slot edge sprinkler. The arrangement of sprinklers shall meet the requirements of uniform distribution of gas extinguishing agent in the protection area after spraying. When the protected object is flammable liquid, the jet direction of the nozzle shall not face the liquid surface.

四、单向阀

4、 Check valve

按安装在管路中的位置可分为灭火剂流通管路单向阀和驱动气体控制管路单向阀；按阀体内活动的密封部件型式可分为滑块型、球型和阀瓣型。灭火剂流通管路单向阀装于连接管与集流管之间，防止灭火剂从集流管向灭火剂瓶组返流。驱动气体控制管路单向阀装于启动管路上，用来控制气体流动方向，启动特定的阀门。

According to the position installed in the pipeline, it can be divided into one-way valve of fire extinguishing agent circulation pipeline and one-way valve of driving gas control pipeline; According to the type of movable sealing parts in the valve body, it can be divided into slider type, ball type and disc type. The one-way valve of the fire extinguishing agent flow pipeline is installed between the connecting pipe and the collecting pipe to prevent the fire extinguishing agent from flowing back from the collecting pipe to the fire extinguishing agent bottle group. The one-way valve of the drive gas control pipeline is installed on the starting pipeline to control the gas flow direction and start specific valves.

五、集流管

5、 Collector pipe

集流管是将多个灭火剂瓶组的灭火剂汇集一起，再分配到各防护区的汇流管路，，组合分配系统的集流管，应设泄压装置，下图13为集流管示意图。

The collecting pipe is used to collect the extinguishant of multiple extinguishant bottle groups and distribute them to the collecting pipe of each protection area. The collecting pipe of the combined distribution system should be equipped with a safety relief device. The following figure 13 is the schematic diagram of the collecting pipe.

六、连接管

6、 Connecting pipe

连接管可分为容器阀与集流管之间连接管和控制管路连接管，如图下所示在灭火剂瓶容器阀与集流管之间的管段为高压连接软管：

The connecting pipe can be divided into the connecting pipe between the container valve and the collecting pipe and the connecting pipe of the control pipeline. As shown in the figure below, the pipe section between the container valve of the fire extinguishing agent bottle and the collecting pipe is a high-pressure connecting hose:

容器阀与集流管之间连接管按材料分为高压不锈钢连接管和高压橡胶连接管。输送气体灭火剂的管道应采用无缝钢管，管内外应进行防腐处理；管道安装在腐蚀性较大的环境里时，宜采用不锈钢管。输送启动气体的管道，宜采用铜管。

The connecting pipe between the vessel valve and the collecting pipe is divided into high-pressure stainless steel connecting pipe and high-pressure rubber connecting pipe according to the material. Seamless steel pipes shall be used to transport gas extinguishing agent, and anti-corrosion treatment shall be carried out inside and outside the pipes; When the pipeline is installed in a highly corrosive environment, stainless steel pipes should be used. Copper pipes should be used for transporting starting gas.

七、泄压装置

7、 Safety relief device

泄压装置可分为灭火剂瓶组泄压装置、驱动气体瓶组泄压装置和集流管泄压装置三种。泄放装置的动作压力应符合气体灭火系统的设计规定。

Safety pressure relief devices can be divided into three types: safety pressure relief device for fire extinguishing agent bottle group, safety pressure relief device for driving gas bottle group and safety pressure relief device for collecting pipe. The operating pressure of the safety relief device shall comply with the design provisions of the gas fire extinguishing system.

八、驱动装置

8、 Drive unit

驱动装置用于驱动容器阀、选择阀使其动作，

The drive device is used to drive the container valve and selector valve to make them act,

它可分为气动型驱动器、引爆型驱动器、电磁型驱动装置、机械型驱动器和燃气型驱动器等类型。

It can be divided into pneumatic driver, explosive driver, electromagnetic driver, mechanical driver and gas driver.

九、检漏装置

9、 Leak detector

检漏装置用于监测瓶组内介质的压力或质量损失。它包括压力显示器、称重装置和液位测量装置等。下图为气体灭火系统称重装置。

The leak detection device is used to monitor the pressure or mass loss of the medium in the bottle group. It includes pressure display, weighing device, liquid level measuring device, etc. The following figure shows the weighing device of the gas fire extinguishing system.

十、信号反馈装置

10、 Signal feedback device

信号反馈装置是安装在灭火剂释放管路或选择阀上，将灭火剂释放的压力或流量信号转换为电信号，并反馈到控制中心的装置，如图下图所示。常见的是把压力信号转换为电信号的信号反馈装置，一般也称为压力开关。

The signal feedback device is a device installed on the extinguishing agent release pipeline or selector valve to convert the pressure or flow signal released by the extinguishing agent into an electrical signal and feed it back to the control center, as shown in the figure below. Common is the signal feedback device that converts pressure signal into electrical signal, which is also called pressure switch.

十一、低泄高封阀

11、 Low discharge and high sealing valve

低泄高封阀是为了防止驱动气体泄漏的累积而引起系统的误动作而在管路中设置的阀门，它安装在系统启动管路上，正常情况下处于开启状态，只有进口压力达到设定压力时才关闭，其主要作用是排除由于气源泄漏积聚在启动管路内的气体。

The low leakage and high sealing valve is a valve set in the pipeline to prevent the misoperation of the system caused by the accumulation of drive gas leakage. It is installed on the startup pipeline of the system and is normally open. It is closed only when the inlet pressure reaches the set pressure. Its main function is to eliminate the gas accumulated in the startup pipeline due to the gas source leakage.

此外要知道，不同的气体灭火系统其结构形式和组成部件的数量也不完全相同，对此您可以来我们网站http://www.cx-fire.com进行详细的了解！

In addition, different gas fire extinguishing systems have different structural forms and components. For this, you can visit our website http://www.cx-fire.com Learn more!