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毕业论文关键词：酒店；灭火器配置设计；消火栓系统设计；喷淋系统设计
Fire protection system design of a hotel
This design object is a hotel in Pudong, located in Pudong, Shanghai. Total construction area: 146225m2. The ground floor area (Ji Rong): 96770m2 Hotel:40207m2 ;Hotel main building :30016m2 (19 layer). Building height: 80m (Hotel).
The main contents of the design include: (1) the research status at home and abroad; (2) large commercial complex features and fire characteristics; (3) building fire resistance rating and general layout; (4) pision of fire, smoke control zone; (5) the design of evacuation safety; (6) the allocation of fire extinguishers; (7)fire hydrant system; (8)automatic sprinkler system; (9) the design of smoke control; (10) the automatic fire alarm system.
The object of this fire design is the main building of the hotel. Project building functions: office, hotel, business, etc.. Project service life: 50 years. Project classification for a class of high building fire resistance rating: Hotel, office and basement fire rating are grade one, grade two podium and refractory shops.
The design object and the surrounding construction distance are much more than 13m, the project group to meet the high level spacing between 13m, commercial and skirt room also meet the requirements of 6m. The fire lane is used in fire ring road, the fire lane outside lane height to meet the conditions, is set to 4.5m, and set the fire lane in the north and south of the main building of the hotel entrance. Fire climbing venues in the north and West, the length and width of the site is set to 25m and 10m.
Level fire zone is in the one or two, three layers of each pision of 2 fire zones; more than four pisions of a fire partition; vertical fire zone is pided by floors, each floor is a vertical fire zone. Smoke control zoning according to independent shops, independent office, corridor for the smoke zone alone, the whole restaurant, teahouse as an independent smoke zone. In addition to the wall of the room to meet the conditions of natural smoke, the rest of the area designed for mechanical smoke. According to the calculation, the mechanical air system for 19872m3/h, the outlet area is greater than or equal to - 0.5m2. The air supply outlet is selected as the 600mm * 900mm grille air outlet; the smoke exhaust fan is arranged on the roof to select the fan HTFC (DT) - I No.20. Air flow is 20390m3/h, the power is 7.5kW, the rotational speed is 800rpm.
Set 11 security exits in one layer. The net width of the safe exit is designed as 2.7m, the aisle is set to 2.7m, the net width of the stair is designed as 3.2m, and the evacuation door is set in the East, South and west of the building.
The design object of the type of fire is judged to be: a solid material fire and E electrical equipment fire. The building fire risk level is a serious danger level. According to the type of fire extinguishers and fire danger rating of design object is the selection of portable ammonium phosphate dry powder fire extinguisher (type MF/ABC5), single fire extinguisher is the minimum configuration of fire rating for 3A, the maximum level of unit fire protection area of 50 (M - /A). Take the hotel three layers as an example, according to the calculation, the design of 8 fire extinguisher configuration points, each point two fire extinguishers, a total of 16 sets of fire extinguishers.
Hotel Design for outdoor fire hydrant flow 40L/s, according to the flow set 4 ground outdoor fire hydrant, located in the main building fire lanes, and 4 ground fire pump adapter settings in the vicinity. Indoor fire hydrant design of 4 water supply pipe, water gun nozzle selection of 19mm fire water, according to the hydraulic calculation of the flow rate of 48.73L/s, the water pressure is 1.1592MPa, the safety coefficient of 1.10, the fire pump required lift is 127mH2O. Centrifugal fire pump XBD12.8/50-150 two sets, one with a preparation, flow rate of 50L/s, head of 128mH2O, speed of 2900r/min, the power of 110kW, the efficiency of 73%.