气体灭火系统的防护区要求是什么?
来源:http://www.cx-fire.com/ 日期:2022-04-26
气体灭火系统一般由灭火剂储存装置、启动分配装置、输送释放装置、监控装置等组成。那么你知道气体灭火系统的防护区要求是什么吗?
Gas fire extinguishing system generally consists of extinguishing agent storage device, starting and distributing device, conveying and releasing device, monitoring device and so on. Do you know what the containment requirements are for a gas fire extinguishing system?
防护区宜以单个封闭空间划分;同一区间的吊和地板下需同时保护时,可合为一个防护区;采用管网灭火系统时,一个防护区的面积不宜大于800㎡,且容积不宜大于3600m;采用预制灭火系统时,一个防护区的面积不宜大于500㎡,且容积不宜大于1600m。
The protected area should be divided into a single enclosed space. When the suspended ceiling layer and the floor under the same zone need to be protected at the same time, it can be combined into a protection zone; When using pipe network fire extinguishing system, the area of a protection area should not be more than 800 square meters, and the volume should not be more than 3600m; When using prefabricated fire extinguishing system, the area of a protection area should not be more than 500 square meters, and the volume should not be more than 1600m.
防护区围护结构及门窗的耐火极限均不宜低于0.5h;吊顶的耐火极限不宜低于0.25h。防护区围护结构承受内压的允许压强,不宜低于1200Pa。防护区应设置泄压口,宜设在外墙上。七氟丙烷灭火系统和二氧化碳气体灭火系统的泄压口应位于防护区净高的2/3以上。
The fire resistance limit of the enclosure structure and doors and Windows in the protection area should not be less than 0.5h; The fire resistance limit of the ceiling should not be less than 0.25h. The allowable pressure of the enclosure structure of the protection area under internal pressure should not be less than 1200Pa. The protection area should be equipped with a pressure relief port, which should be located on the outer wall. The pressure relief port of HFc-227ea fire extinguishing system and CARBON dioxide gas fire extinguishing system should be located at least 2/3 of the net height of the protected area.

喷放灭火剂前,防护区内除泄压口外的开口应能自行关闭。防护区的环境温度不应低于-10℃。防护区用的通风机和通风管道中的防火阀,在喷放二氧化碳前应自动关闭。
Before spraying the extinguishing agent, all openings in the protected area, except the pressure relief outlet, should be closed by themselves. The ambient temperature in the zone should not be lower than -10 ° C. The fire valve in the ventilator and ventilation pipe used in the protection area should be closed automatically before spraying carbon dioxide.
采用全淹没二氧化碳
川消灭火系统的防护区,应符合下列规定:对气体、液体、电气火灾和固体表面火灾,在喷放二氧化碳前不能自动关闭的开口,其面积不应大于防护区总内表面积的3%,且开口不应设在底面。对固体深位火灾,除泄压口以外的开口,在喷放二氧化碳前应自动关闭。等等。
For gas, liquid, electrical and solid surface fires, openings that cannot be closed automatically before carbon dioxide is discharged shall not exceed 3% of the total internal surface area of the protected area, and openings shall not be located on the underside. For solid deep fire, except for the pressure relief mouth, the opening should be automatically closed before spraying carbon dioxide. And so on.
What are the protection zone requirements for gas fire extinguishing systems? The above is the sichuan xiaobian for you to explain the content of the problem, if you have other problems unresolved, welcome to this www.cx-fire.com for consultation.