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The automatic sprinkler system choose wet automatic sprinkler system. Determine its belong to the dangerous level of Ⅱ level risk level. This design USES the square nozzle arrangement, the most unfavorable point area of nozzle number is 15, the number of branch pipe work area for four. Indoor spraying water consumption of 45.18 L/s, the lift of pump is 76 m, flow rate Q = 45.18 L/s. Reason to choose the pump type for XBD10 / dl x5, 40-150 head 90 m and speed 1480 r/min, the efficiency of 76%, 55 kw power, NPSH 3.5 m. Choose two groups of the model pump, in one case, three water pump adapter.
Centralized automatic fire alarm system alarm system, determine its level of protection for object, selects the ionization smoke detector. Number of underground detector for 44, underground detector on the second floor of 51 number. The installation of the detector spacing for a = 10 m, b = 6 m.
This design will be underground layer and underground layer respectively as two levels fire zone. Each layer has two rooms and stairwells before smoke, as two smoke partitions separately, and the rest is pided into two smoke partitions, underground layer is pided into: 57.4 m2, 56 m2, 1490 m2, 1493.4 m2, underground layer is pided into: 53.3 m2, 22.1 m2, 1780 m2, 1784 m2. Choose HTFC smoke partitions - I - NO40 fire ventilation cabinet low noise centrifugal fan, a flow: after 82290 m/h, 890 pa, total pressure speed 580 r/min, motor: Y280S - 6, 55 kw power.
Key words: underground building；fire protection design；fire hydrant system；automatic sprinkler system； automatic fire alarm system
目录
1 绪论 1
1.1 设计项目概况 1
1.2 主要设计规范 1
1.3 国内外地下建筑火灾特点现状与安全措施 1
1.3.1 国内地下建筑火灾特点 1
1.3.2 国外地下建筑现状 2
1.3.3 地下建筑消防安全防控措施 3
1.4 设计任务和主要内容 4
1.4.1 设计任务 4
1.4.2 设计主要内容 4
2 建筑总平面设计 5
2.1 建筑分类与耐火等级 5
2.1.1 建筑分类 5
2.1.2 建筑耐火等级的确定 6
2.2 防火间距 6
2.3 消防车道 7
3 建筑平面防火设计 8
3.1 防火分区 8
3.2 防烟分区 8
4 安全疏散设计 9
4.1 设置安全疏散路线 9
4.2 安全出口的布置 9
4.3 防烟楼梯间的设计 9
5 灭火器配置设计 10
5.1 灭火器的类型与选择 10
5.2 灭火器的设置要求 10
5.3 灭火器配置场所危险等级划分和最低配置基准 10
5.4 灭火器的配置 11
6 消防给水系统设计 14
6.1 室外消火栓系统的设置要求 14
6.2 室外消火栓设计方案 15
6.3 室内消火栓设计计算 16
6.3.1 消火栓的选用和布置间距设计 16
6.3.2 消火栓给水管网的水力计算 19
6.3.3 消防水箱有效容积 23
6.3.4 消防水池有效容积 24
6.3.5 消防水泵扬程及流量 25
7 自动喷水灭火系统设计 26
7.1 设置场所火灾危险等级的划分 26
7.2 系统选型及喷头设计 27
7.2.1 系统选型 27
7.2.2 确定喷头布置 30
7.3 计算水泵扬程及选型 35