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This design basis mainly are: “the civil building heating ventilation and air conditioning design standard ”(GB50736-2012), “the code for fire protection design of buildings ”(GB50016-2014),“public building energy efficiency design standard “(GB50189-2015), etc.
The building a layer underground, three layers, each layer is 4.5 m high, a total height of 18 m.A total construction area of 14991.2 m2, including air conditioning area is 12039.4 m2.Room types such as shops, the monitoring center.Project total cooling load of 874.7 kW, including fresh air cooling load is 497.5 kW.Maximum cooling load in 7 p.m.The building adopts the central air conditioning, end of the mall air conditioning use ultra-thin ceiling air-conditioning and fan coil units, each layer of air room alone setting processing fresh air.Considering the purchase of convenient, fan coil units and ceiling air conditioning box are far at Shanghai environmental production technology co., LTD.Choose KCR series fan coil units, the KCR 11-600, KCR - 800 type 3, KCR - 1000 type four;Ceiling air conditioning box choose KADL - F series, including KADL - D type 13, KADL - F type 47 units.Fresh air unit selection satisfies the requirement of air volume, as well as the pressure cooling capacity, selection of KAHDV series ceiling type fresh air units, including KAHDV - type 2 1, 7 KAHDV - 3 type.Duct galvanized metal duct, material selection in the unit and nipple and suck FengKouChu use hose, fire damper duct installation.Square diffuser, air supply outlet with 200 mm x 200 mm43, 240 mm x 240 mm65, 300 mm x 300 mm137;Return air mouth in the form of single louvers, 250 mm x 120 mm7, 250 mm x 160 mm24, 320 mm x 200 mm47.Chiller setting in the basement, choose joint carrier (Shanghai) air conditioning co., LTD. Production of 30 hxc165a type two water cooled screw chiller, single refrigerating capacity is 580 kw, cold water flow rate of 100 m3 / h, the pressure drop 68 kpa, working condition of refrigeration water in 12 ℃, out 7 ℃.Frozen water pump selection of shandong hoses Wang Zhi pump co., LTD., production DFG150-32/4 frozen water pump, and a case.Due to the system of effective volume of 0.42 cubic meters of expansion tank, selection of shenzhen technology co., LTD., a subsidiary of sin products, RP series expansion tank, models for RP350CE / 18, design pressure is 1.5 ~ 3 mpa, and the water tank to heat preservation measures.System is running the condensate emissions through a floor drain.In addition, I also for the design of the cooling water system has carried on the simple, cooling tower with FRP co., LTD. Hebei can knight DBNL3-100 low noise circular counterflow FRP cooling tower 2 sets, single water is 100 m3/h, air volume of 56000 m3/h.Cooling water pump selection of shandong hoses DFBS200 Wang Zhi pump co., LTD. - 42/2 detachable type centrifugal pump, the water is 125 m3/h, 42 m head, and a case.
目录
0 绪论 1
1 工程概述及设计依据 2
1.1 工程概况 2
1.2 设计依据 2
1.2.1 空调室外设计参数 2
1.2.2 空调室内设计条件 2
1.2.3 围护结构及热工特性 2
1.2.4 空调运行时间段 3
2 负荷计算 4
2.1 夏季冷负荷的组成 4
2.2 负荷计算过程和结果汇总 4
2.2.1 负荷计算步骤 4
2.2.2各层房间冷负荷计算及汇总 6
3 空调方案的确定 11
3.1 空调系统的确定