Composition: fire extinguishing agent storage bottle group, liquid check valve, collecting pipe, selector valve, pressure signal, pipe network, nozzle, valve driving device.

工作原理：发生火灾后，火灾探测器将火警信号输送到报警控制器，鉴定确认后，启动报警装置，声光报警，灭火控制盘动作，启动开口关闭装置，通风机等联动设备，延时启动阀驱动装置，将灭火剂储存装置和选择阀同时打开，将灭火剂施放到防护区进行灭火，灭火剂施放时压力讯号器给出信号发出灭火剂施放的声光报警。

Working principle: after a fire occurs, the fire detector transmits the fire alarm signal to the alarm controller. After identification and confirmation, start the alarm device, audible and visual alarm, fire extinguishing control panel action, start the opening closing device, ventilator and other linkage equipment, delay the start of valve driving device, open the fire extinguishing agent storage device and selector valve at the same time, and apply the fire extinguishing agent to the protection area for fire extinguishing, When the fire extinguishing agent is applied, the pressure annunciator gives a signal and sends out an audible and visual alarm for the application of fire extinguishing agent.

分类：

Classification:

（1）全淹没系统---在规定时间内向防护区喷射一定浓度的灭火剂并使其均匀地充满整个防护区。

(1) Total flooding system --- spray a certain concentration of fire extinguishing agent into the protection area within the specified time and make it evenly fill the whole protection area.

（2）局部应用系统---向保护对象以设计喷射强度直接喷射灭火剂并持续一定时间。

(2) Local application system - direct spraying of fire extinguishing agent to the protected object at the designed spraying intensity for a certain period of time.

适用范围：

Scope of application:

电气火灾；

Electrical fire;

固体表面火灾；

Solid surface fire;

液体火灾；

Liquid fire;

灭火前能切断气源的气体火灾。

Gas fire that can cut off the gas source before extinguishing the fire.

注：除电缆隧道(夹层、井)及自备发电机房外，K型和其它型热气溶胶预制灭火系统不得用于其它电气火灾。

Note: except for cable tunnel (interlayer, well) and self provided generator room, K-type and other hot aerosol prefabricated fire extinguishing systems shall not be used for other electrical fires.

不适用范围：

Not applicable:

硝化纤维、硝酸钠等氧化剂或含氧化剂的化学制品火灾；

Nitrocellulose, sodium nitrate and other oxidants or chemicals containing oxidants fire;

钾、镁、钠、钛、锆、铀等活泼金属火灾；

Potassium, magnesium, sodium, titanium, zirconium, uranium and other active metal fires;

氢化钾、氢化钠等金属氢化物火灾；

Metal hydride fires such as potassium hydride and sodium hydride;

过氧化氢、联胺等能自行分解的化学物质火灾。

Hydrogen peroxide, diamine and other chemical substances that can decompose by themselves.

可燃固体物质的深位火灾。

Deep flammable solid fire.

注意：该系统在有人值班时应处在手动状态！

Note: the system should be in manual state when someone is on duty!

、二氧化碳灭火系统

Carbon dioxide fire extinguishing system

优点：便宜；不污损物品、无水渍、不导电

Advantages: low price; No stain, no water stain, no conductivity

缺点：灭火效果逊于卤代烷灭火剂；二氧化碳对人有窒息作用，低设计浓度高于对人体的致死浓度，只能用于无人区域，有人区域必须采取保护措施。

Disadvantages: the fire extinguishing effect is inferior to that of halogenated alkane fire extinguishing agent; Carbon dioxide can suffocate people. The minimum design concentration is higher than the lethal concentration to human body. It can only be used in uninhabited areas. Protective measures must be taken in inhabited areas.

工作原理：减少空气中氧气含量，使其达不到支持燃烧浓度，从而抑制火情。

Working principle: reduce the oxygen content in the air so that it cannot reach the supporting combustion concentration, so as to suppress the fire.

、蒸汽灭火系统

. steam fire extinguishing system

组成：蒸汽源，输汽干管，支管，配汽管。

Composition: steam source, main steam transmission pipe, branch pipe and steam distribution pipe.

优点：灭火效果好，其中饱和蒸汽优于过热蒸汽；不会引起物品损坏。

Advantages: good fire extinguishing effect, in which saturated steam is better than superheated steam; Will not cause damage to items.

工作原理：水蒸气是热含量高的惰性气体，通过水蒸气冲淡燃烧区的可燃性气体和氧气的含量来实现，并瞬间在火焰周围形成蒸汽层扑灭火灾。

Working principle: water vapor is an inert gas with high heat content, which is realized by diluting the content of combustible gas and oxygen in the combustion area, and instantly forming a steam layer around the flame to extinguish the fire.

、烟烙尽（IG—541）

Burn out the smoke (IG-541)

组成：52％氮、40％氩、8％二氧化碳三种气体。

Composition: 52% nitrogen, 40% argon and 8% carbon dioxide.

特点：比空气略重，属于惰性气体灭火剂，以气态储存，其储存压力为15MPa。

Features: it is slightly heavier than air and belongs to inert gas fire extinguishing agent. It is stored in gaseous state, and its storage pressure is 15MPa.

优点：烟烙尽是一种绿色型灭火剂，在灭火时不会发生任何化学反应，不污染环境，、无腐蚀，具有良好的电绝缘性能，不会对被保护设备构成危害，也无须延迟喷放，这是其它灭火剂所不具备的特点。

Advantages: cigarette soldering is a kind of green and environmental friendly fire extinguishing agent. It will not produce any chemical reaction during fire extinguishing, will not pollute the environment, is non-toxic and non-corrosive, has good electrical insulation performance, will not pose harm to the protected equipment, and there is no need to delay the spraying, which is a feature that other fire extinguishing agents do not have.

缺点：因是被动灭火，其灭火效果略差，其高压气态储存方式带来了储瓶数量大，占地面积大，系统造价高的缺点。

Disadvantages: due to passive fire extinguishing, its fire extinguishing effect is slightly poor, and its high-pressure gaseous storage mode brings the disadvantages of large number of storage bottles, large floor area and high system cost.

工作原理：通过降低防护区中的氧气浓度（由空气正常含氧量的21％降12.5％），使其不能维持燃烧而达到灭火的目的，为物理反应，属被动灭火。

Working principle: by reducing the oxygen concentration in the protection area (from 21% to 12.5% of the normal oxygen content in the air), it can not maintain combustion to achieve the purpose of fire extinguishing. It is a physical reaction and belongs to passive fire extinguishing.

、FM200（七氟丙烷HFC-227ea）

FM200 (heptafluoropropane HFC-227ea)

七氟丙烷（美国商标名称为FM200）灭火剂是一种无色、几乎无味、不导电的气体。化学分子式为CF3CHFCF3，密度大约为空气的6倍，采用高压液化储存。

Heptafluoropropane (US trade name FM200) fire extinguishing agent is a colorless, almost tasteless and non-conductive gas. The molecular density of cf3c liquefied air is about 3 times that of hf6 liquefied air.

优点：FM200是毒性较低、无色、无味、无二次污染的气体，对人体产生不良影响的体积浓度临界值为9％，其小设计灭火浓度为7％，因此，正常情况下对人体不会产生不良影响，可用于经常有人活动的场所，尤其对一些重要保护场所如机电室、文物档案等重要保护对象有很好的防护作用，无二次损害的风险，特别是它不破坏大气臭氧层，符合环境要求。

Advantages: FM200 is a gas with low toxicity, colorless, tasteless and no secondary pollution. The critical volume concentration of adverse impact on human body is 9%, and its minimum design fire extinguishing concentration is 7%. Therefore, it will not have adverse impact on human body under normal circumstances. It can be used in places with frequent human activities, especially for some important protected places, such as electromechanical room, cultural relics archives and other important protected objects, There is no risk of secondary damage, especially it does not damage the atmospheric ozone layer and meets the environmental requirements.

缺点：其灭火系统也有自身的弱点：不能灭固体深位火灾，输送距离短，因为灭火剂的释放必须在十秒钟之内完成，达到灭火浓度，否则产生的酸性分解物对人体有害，对被保护设施也有腐蚀性，用于组合分配系统时，各防护区位置应相对集中。

Disadvantages: its fire extinguishing system also has its own weakness: it can not extinguish solid deep fire, and the transportation distance is short, because the release of fire extinguishing agent must be completed within ten seconds to reach the fire extinguishing concentration, otherwise the acid decomposition products produced are harmful to human body and corrosive to the protected facilities. When used in the combined distribution system, the positions of each protection area should be relatively concentrated.

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Today is the wonderful content that Xiaobian brings to you. More wonderful content focuses on our website: Chuanxiao http://www.cx-fire.com