上海某科技大厦消防系统设计+CAD图纸(2)
毕业论文关键词： 高层建筑；综合办公楼；消防设计；消火栓系统；自动喷水灭火系统
Fire protection system design of Technology Building in XX District，Shanghai
General Design Description：The objective of this design is a Technology Building in XX District. The height of the building is 81.1 meters and the total construction area is 25203 square meters.The design-working-life is 100 years.
The main contents of this design are:analysis of situation of high-rise building’s fire safety at home and abroad;Design focus;general layout Fire protection design for office building;smoke control design for office building;Safe evacuation design for office building;Fire extinguisher configuration design for office building;design of fire hydrant system for office building;Automatic sprinkler system for office building;Design of automatic fire alarm system for office building.
This design object is a first class public building, and its fire resistance level is level 1.The fireproof distance between this building and other high-rise buildings should be 9m, while between the building and other residence and podium should be 13m. Set ring fire road around the building.
In accordance with structure and use of this building and national regulations and rules, the general layout of fire control of this building mainly designs the fire-proof part and smoke-proof part of functional pision inside each other floor.
The safe evacuation route is from room to hallway to antechamber to stairwell. Each fire district located two evacuation exits and walkway’s width is 2.2m, two security exit distances greater than 5m, the safe evacuation distance is 12.7m, which is compliance. Each tower set two stairwells, a fire elevator in design.
The design object is serious risk hazard level, it is mainly made for fire emergency of A class, and few for E class. Fire extinguishers are equipped with Ammonium phosphate dry powder portable fire extinguishers（MF/ABC5）. Fire minimum configuration level is 3A, and maximum protection distance of hands holder is 15 meters. According to the result of computing protected area square and fire protection levels,
Design objects is serious risk hazard level, it is mainly made for fire emergency of A class, and few for E class. Fire extinguishers are equipped with ammonium phosphate powders (MF/ABC5) and hands holder. Fire minimum configuration level is 3A, and maximum protection distance of hands holder is 15 meters. According to the result of computing protected area square and fire protection levels, fire extinguishers set 3 point in the empty place, 4 point in the first floor to the 18th floor, 7 point in the basement, 6 fire extinguishers in the empty place, 8 fire extinguishers in the first floor to the 18th floor, 14 fire extinguishers in the basement.
The design and calculation of Fire Hydrant Water Supply System includes outdoor and indoor fire hydrant systems. The water consumption of outdoor fire hydrant is 30L / s, set three outdoor low voltage ground fire hydrant. The water consumption of indoor fire hydrant is 40L / s.The protection radius of fire hydrant is 28m,the layout space of fire hydrant is26,7m,setting up 5 risers in building. The total loss is 0.12932MPa, the elevation difference between most negative point hydrant and lowest level of fire pond is 0.7535MPa, working pressure of the fire fighting equipment at the most negative point is 0.20309MPa, so the fire pump lift is 125m and flow is 45.22L/s, chooseXBD12.5/45-125-315model of fire pump, with a preparation, set 4 fire pump adapters.
The auto-spray system adopts the design of wet-type auto-spray fire extinguishing system. In accordance with regulations and rule, this building is regarded as I class of danger categories. This design chooses the layout of nozzle in the form of square. Determine the location and shape of the most disadvantaged areas of role in the area, the most negative point of the active area has 14 nozzles, the active area is 161.84m2, the most negative point of the nozzle,. System design flow is 29.97L/s. Pipelines total loss 0.51708MPa, the elevation difference between most negative point hydrant and lowest level of fire pond is 0.7735MPa, working pressure of the fire fighting equipment at the most negative point is 0.08MPa, so the sprinkler pump’s lift is 137m, flow 29.97L / s, selected one XBD13.0/30-125-315L Model fire sprinkler
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