机房气体灭火系统设计.doc

机房气体灭火系统设计
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline现场人员已经无法控制，灭***剂最终肯定会喷掉，但火灾对机房设备的损失要大的多。
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist4
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
 
　　 
　　2、灭火系统的选择 
　　 
　　机房灭火目前采用的灭火剂大多数还是选用七***丙烷或混合气体，二氧化碳肯定是不适宜，因为温降会对发热机器造成损坏。七***丙烷在机房灭火中可以采用有管网全淹没灭火形式和无管网全淹没灭火形式，两种形式可在具体工程种进行投资比拟后定出一种方式，问题不是很大；混合气体灭火系统在机房灭火中应用也非常多，大多数采用有管网灭火形式，因为同样大小的机房所用高压瓶数量七***丙烷要比混合气体少一半左右，机房面积一般都很小，混合气体做无管网形式时无管网箱体数量比拟多，再者，启动电流就是个问题。 
　　 
　　3、灭火剂储藏存装置数量计算 
　　
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist6
of accountability, redress of orders and prohibitions. Strengthening the honesty and self-discipline of leading cadres honesty in politics and education work, enhance leaders ability to resist
 
　　七***丙烷灭火系统的标准中有明确规定，防护区内的灭火浓度应校核设计最高环境温度下的最大灭火浓度，并应符合以下规定：对于经常有人工作的防护区，；对于经常无人工作的防护区，或平时虽有人工作但能保证在系统报警后最长30s延时结束前撤离的防护区，%。 
　　 
　　但通常好多工程设计中都将此问题忽略不计，原因有二：一，设计者不了解此问题；二，有意避开此问题，以求降低本钱。然而此问题从平安角度考虑是非常重要的，本来设置灭火设施是为保证人们的生命平安和减少财产损失，假设不考虑此问题相当于用钱引进了一个危险因素，对生命平安却有了威胁。 
　　 
　　通常有关网系统存在生理毒性指标核算，而无管网灭火系统可以不进行生理毒性指标核算