某公司办公楼空调及冷热源工程设计.docx

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1、某公司办公楼空调及冷热源工程设计设计说明书一.空调设计1 .办公楼空调负荷计算(以三楼15号房为例)(1)热负荷已知参数：外表面h=23.26wC(夏)，h=18.56wm2oc(冬)内表面h=8.72w/IH20C冬季：室内18,40%室外2,82%夏季：室内26,60%室外36.5C(干)27.3(湿)北外墙Fb=3.93.3-1.51.5=10.62m2Kb=I/(1/18.56+0.02/0.93+0.04/0.04+0.02/0.93+0.2/0.69+0.02/0.93+1/8.72)=0.657wm20CQb=KF(tn-tw)a=112.15W北外窗Fbc=1.5XI.5=2.

2、25m2KbC=3.5wm2C故QbC=KbcFbc(tn-tw)a=126W冷风渗透耗热量(使用换气次数法)Vn=(3.9-0.125)3.14.6=53.8m3,nk=l4,Pw=L34,CP=IQbc=0.2781453.811.34(18-2)=80.2W南内墙Fn=3.33.9-0.9X2.1=10.98m2Kn=I/(1/8.92+0.02/0.93+0.2/0.54+0.02/0.93+1/8.72)=1.56取a=0.7Qn=I.56-10.9816-0.7=191.8W屋面Fm=16.17m2,K=O.649Qw=O.64916.1716=167.94W冬季总热负荷Ql=Qb

3、+Qbc+Qbc+Qn=678.09W（2）冷负荷己知屋面逐时温差0:301:302:303:304:305:306:307:3010101010111214158:309:3010:3011:3012:3013:3014:3015:30161819191919191816:3017:3018:3019:3020:3021:3022:3023:301817161514131211外墙逐时温差0:301:302:303:304:305:306:307:30555566678:309:3010:3011:3012:3013:3014:3015:3088991010101016:3017:3018:

4、3019:3020:3021:3022:3023:30109987766外窗逐时温差0:301:302:303:304:305:306:307:30544433448:309:3010:3011:3012:3013:3014:3015:305678899916:3017:3018:3019:3020:3021:3022:3023:3096877655屋面K=l(l23.26+0.02/0.93+0.05/0.04+0.02/0.93+0.1/1.94+0.02/0.93+1/8.72)=0.654F=16.17m2屋面逐时冷负荷Qwl0:301:302:303:304:305:306:307:

5、30190.35190.35179.78169.2158.63148.05137.48126.98:309:3010:3011:3012:3013:3014:3015:30116.33105.75105.75105.75105.75116.33126.9148.0516:3017:3018:3019:3020:3021:3022:3023:30158.63169.2190.35200.93200.93200.93200.93200.93外墙K=I/(1/23.26+0.02/0.93+0.04/0.04+0.02/0.93+0.2/0.69+0.02/0.93+1/8.92)=0.661F=I

6、O.62m2外墙逐时冷负荷Qql0:301:302:303:304:305:306:307:3063.1856.1856.1649.1449.1442.1242.1235.18:309:3010:3011:3012:3013:3014:3015:3035.135.142.1242.1242.1249.1456.1656.1616:3017:3018:3019:3020:3021:3022:3023:3063.1863.1870.270.270.270.270.263.18外窗K=3.5,F=2.25m2外窗逐时传热冷负荷QCC0:301:302:303:304:305:306:307:3039

7、.3831.531.531.523.6324.427.5633.088:309:3010:3011:3012:3013:3014:3015:3039.3842.2653.5659.8664.5868.5270.8871.6716:3017:3018:3019:3020:3021:3022:3023:3070.145.6862.2256.7151.1946.4741.7437.8窗户有效面积系数Xg=O.75,遮挡系数Cs=O.74,遮阳系数Cn=O.6冷负荷强度Jz0:301:302:303:304:305:306:307:30171412109651718:309:3010:3011:301

8、2:3013:3014:3015:30759110511512112412311716:3017:3018:3019:3020:3021:3022:3023:30107106964736302420外窗逐时日射冷负荷QCS0:301:302:303:304:305:306:307:3010.498.997.496.744.4938.2153.256.198:309:3010:3011:3012:3013:3014:3015:3068.1878.6786.1690.6692.9192.1687.6680.1716:3017:3018:3019:3020:3021:3022:3023:3079.4

9、271.9335.2126.9722.4817.9814.9612.74南内墙F=IO.98m2m2,K=I.56,twp=32.5,tls=l,tn=26Q=L5610.98(32.5+1-26)=128.47W照明散热(取一盏36W荧光灯，镇流器4W)Qd=1OOn1n2p=1.20.640=28.8W人体散热n=2,n,=0.93,q=134W人Qr=nn,q=249.24W人体冷负荷系数18:3019:3020:3021:3022:3023:300.510.70.760.80.80.830:301:302:303:304:305:306:300.860.880.90.910.930.9

10、40.48人体与照明冷负荷0:301:302:303:304:305:306:307:30150.04153.53158.77162.2616483.7450.5940.138:309:3010:3011:3012:3013:3014:3015:30124.62124.62124.62124.62124.62124.62124.62124.6216:3017:3018:3019:3020:3021:3022:3023:30124.62124.62117.78150.93161.39168.37168.37144.81夏季总冷负荷0:301:302:303:304:305:306:307:305

11、81.91569555.15547.31521.34464.34464.99432.48:309:3010:3011:3012:3013:3014:3015:30419.87500.09504.38533.19551.48558.45579.24594.6916:3017:3018:3019:3020:3021:3022:3023:30609.14614.45635.26624.68648.23652.91646.4624.94（3）人体湿负荷按照室内人数2人，n=0.93,查表w=109W人W=nn,w=202.74W人员在室内的可能性0:30-7:308:30-17:3018:30-23:

12、3070%50%70%湿负荷0:30-7:308:30-17:3018:30-23:30141.918101.37141.918可总结该房间选型所需最大计算值如下冷负荷热负荷湿负荷653678142本建筑各房间的冷热湿负荷汇总如下房间号冷负荷湿负荷热负荷一层1124922990527921012649292961二层36576109250041272264413512722644136134829216247614519582036895315637191470423881三层10950100858111171101191612104868447136531427901481563716156

13、5314267816113563567171578405600181388638421910924368982012026365621106310188022120263656231289101795(4)风量及冷量计算利用焰湿图可计算各房间的风量及冷量举比如下图所示1,2号房间4号房间10号房间根据如下公式：一次回风：送风量G=Q/(in-io)回风量Gh=G-Gw新风比m=GwG100%需冷量Qo=G(ic-il)新风负荷Qw=GwX(iw-in)风机盘管加独立新风：送风量G=Q/(in-io)风机盘管风量Gf=G-Gw新风机组需冷量Qw=GwX(iw-il)风机盘管需冷量Qf=GfX(i

14、n-im)各房间的风量及冷量可计算汇总如下表房间号热湿比kj/kg送风量kg/s新风量m3h一次回风系统制冷量W一层1150481.256792.21994227396.640.8504.415960新风比m送风量m3h回风量m3h0.200082363959.3695273167.1695270.2000086112521.8914192017.491419房间号热湿比kj/kg送风量kg/s新风量m3h新风机组制冷量W风机盘管制冷量WN点L点二层3217187.40.7866033003564.9435856.46558.8550.38417345.460.1314051201060.91

15、81299.26958.8544.93517345.40.131401201060.911299.2658.8544.936589616619.170.13811560747.62931252.73758.8548.3374368.540.5764549608487.3446515.2258.8534.89821992.30.1020341201060.918983.821658.8543.47912510.640.1417551201060.9181497.2658.8544.41房间号W点L点0点新风比m送风量m3h回风量m3h二层386.7249.2650.490.1209842479.

16、6592179.659486.7258.8549.170.28969414.2363294.2363586.7258.8549.170.28969414.2363294.2363686.7247.4449.090.137808435.388375.388786.7258.8548.190.5282871817.193857.1931886.7258.8549.510.373077321.6492201.6492986.7258.8548.480.268538446.8636326.8636房间号热湿比kj/kg送风量kg/s新风量m3h新风机组制冷量W风机盘管制冷量WN点L点三层1034199

17、.960.10638350610.0183892.545658.8548.991141738.680.13306860727.64431085.61258.8549.331255429.260.12101660795.5933963.737858.8549.41316554.920.06690630265.2295658.826558.8547.371446571.440.09324930358.3977819.743758.8549.061546571.440.06690630265.2295658.826558.8547.371664857.130.13197760723.4571051.

18、50358.8549.541714106.670.15639260750.2941477.98458.8548.091879314.240.16252960715.84371305.81358.8549.75199016.5140.09495730265.22951098.75758.8545.992068685.580.14009360721.1731118.59458.8549.612137889.130.11997750442.04921006.80558.8549.182268685.580.14009360698.52331118.59458.8549.612345944.640.1

19、4731460723.26671204.55858.8549.46房间号W点L点O点新风比m送风量m3h回风量m3h三层1086.7248.2649.920.149094335.3579285.35791186.7248.4950.050.143034419.4794359.47941286.7244.9250.190.157279381.487321.4871386.7258.8549.090.14224210.9113180.91131486.7249.0650.110.102056293.9562263.95621586.7258.8549.090.14224210.9113180.91

20、131686.7248.7150.250.144217416.0388356.03881786.7247.348.760.121702493.006433.0061886.7249.1150.310.117107512.3515452.35151986.7258.8547.350.100221299.3375269.33752086.7248.8350.270.135862441.6249381.62492186.7258.8549.990.132201378.2126328.21262286.7250.0250.270.135862441.6249381.62492386.7248.7250

21、.10.129202464.3883404.38832 .系统划分与形式选择结合冷湿负荷量及该建筑的结构形式，从能源节约与适合操纵方面考虑，可知该建筑一层应选择集中供冷与通风的形式，即集中式空调系统与全面通风系统；而二楼应使用半集中式空调系统与各房间分别全面通风；三楼与二楼相同。3 .空调处理方案的确定与设备选择空调处理方案一楼两个房间使用一次回风集中式供冷系统，处理过程如图所示处理过程W+N-CLON二三楼的房间分别安装风机盘管及集中安装新风系统，构成半集中式空调系统，处理过程如图所示处理过程如下WfLN-I/OfN设备选择i-d图工况分析如上所示。利用各房间冷量及风量可选择各房间空调设备如

22、下一楼吊装式空调机选型生产厂商产品名称产品型号冷量(kw)热量(kw)青岛同与空调设备股份有限公司卧式吊顶循环风机组BFP-7WD41.5361.39风量（m3h）设备安装尺寸（长）（mm）设备安装尺寸（宽）（mm）设备安装尺寸（高）（mm）700020501000600设备种类机组安装方式风机安装方式机组外形机组工况噪音W(dB（八）)吊装式空气处理机暗装抽吸式卧式回风61二三楼生产厂商设备种类产品型号制冷量（高速、总冷）（w）制冷量（高速、显冷）（w）制冷量（中速、全冷）（W）3号上海开乐暖通（集团）公司立式暗装FP-25LA1395004号上海通惠一开利空调设备有限公司卧式暗装42CMX

23、002192005号上海通惠一开利空调设备有限公司卧式暗装42CMX002192006号上海通惠一开利空调设备有限公司卧式暗装42CMX002192007号江苏省宜兴市空调设备厂立式暗装FP-16ML720008上海新晃空调设立式明装SL-200B150011500号备有限公司9号上海新晃空调设备有限公司卡式吸顶式CP-300B23501735010号北京弘电英宸制冷设备有限责任公司卧式明装FP2.5WM1500127511号上海新晃空调设备有限公司卡式吸顶式CP-200B17501240012号上海新晃空调设备有限公司卡式吸顶式CP-200B17501240013号北京弘电英宸制冷设备有限责

24、任公司立式明装FP2.5LM1500127514号北京弘电英宸制冷设备有限责任公司立式明装FP2.5LM1500127515号清华同方人工环境有限公司卧式暗装FP2.5WABH1G1440128916号北京振兴华龙制冷设备工程集团卧式暗装FP3.5GWA22201609188717号北京振兴华龙制冷设备工程集团卧式暗装FP3.5GWA22201609188718号北京振兴华龙制冷设备工程集团卧式暗装FP3.5GWA22201609188719号北京弘电英宸制冷设备有限责任公司卧式明装FP2.5WM1500127520号北京振兴华龙制冷设备工程集团卧式暗装FP3.5GWA222016091887

25、21号北京振兴华龙制冷设备工程集团卡式吸顶式FP3.5BKM19451385165322号北京振兴华龙制冷设备工程集团卧式暗装FP3.5GWA22201609188723号北京振兴华龙冷设备工程集,制团卧式暗装FP3.5GWA222016091887制冷量(中速、显冷)(w)制冷量(低速、总冷)(w)制冷量(低速、显冷)(W)送风量(高速)(m3/h)送风量(低速)(m3/h)送风量(中速)(m3/h)制热量(低速)(W)制热量(高速)(W)制热量(中速)(W)0260918012108205210410250320326004102503203260041025032032600160096

26、012801080003101700273005102650375011253001952401912255021680360180027700360180027701125300195240191225502168112530019524019122550216811532501602051784244020761335159811264402303002691376831401335159811264402303002691376831401335159811264402303002691376831401125300195240191225502168133515981126440230

27、30026913768314011631362928372200270206434402786133515981126440230300269137683140133515981126440230300269137683140电机输入功率(w)设备安装尺寸(宽)(mm)安寸备尺长mm)设装噪声(高速)(dB（八）)245217179555274696903727469690372746969037160235253042326101033.549011203730578324909203349092033302353230235323751853834394558544239455854423

28、945585442305783239455854423059062636394558544239455854424.空调、通风系统布置如图一楼通风系统设置如图二楼通风系统设置如图三楼通风系统设置如图5 .空调、通风房间的气流组织设计依照本建筑使用的是全面送风的形式，为使气流分布均匀，可知一楼使用散流器从上往下送风较为合适，可使工作区处于送风的回流区，能够满足区域温差的要求；而二三楼送风空间都属于小区域，无需使用散流器，侧送风的形式更为合适。而气流组织形式，一楼使用上送上回式，二三楼使用的是上送风的形式，利用房间的缝隙与出口作为回风的途径。送风口布置如上图所示。根据各层新风量及安装要求可选定新风

29、机组如下：根据新风量及新风制冷量:楼层新风量新风制冷量218001704437008062新风机组选择如下:一楼新风机组新风机组选型生产厂商产地产品名称产品型号产品商标冷量(kw)热量(kw)北京市舒特建筑科技有限责任公司北京吊顶式暗装空调机组ZKDl.5-D-415.619风量(m3/h)水量(m3/h)设备安装尺寸（长）（mm）设备安装尺寸（宽）（mm）设备安装尺寸（高）（mm）经销商设备种类15002.688001040620新风空气处理机组机组安装方式风机安装方式机组外形机组工况供冷进风干球温度（）供冷进风湿球温度（eC）供热进风干球温度（）暗装抽吸式新风3428-4余压（Pa）噪音W

30、(dB（八）)水阻力（mH20）机组电功率（kw）配套风机型号配套风机台数（台）配套风机功率（kw）1603.90.2510.25问风机组生产厂商产地产品名称产品型号产品商标冷量(kw)热量(kw)青岛同与空调设备股份有限公司山东卧式吊顶循环风机组BFPX-2BD15.2624.96风量（m3/h）水量（m3/h）设备安装尺寸（长）（mm）设备安装尺寸（宽）（mm）设备安装尺寸（高）（mm）200012001000400二楼生产厂商产地产品名称产品型号产品商标冷量(kw)热量(kw)青岛同与空调设备股份有限公司山东卧式吊顶新风机组BFP-2WD19.12风量(m3h)水量(m3/h)设备安装尺

31、寸（长）（mm）设备安装尺寸设备安装尺寸（高）经销商设备种类(宽)(mm)(mm)20003.310001000500新风空气处理机组机组安装方式风机安装方式机组外形机组工况供冷进风干球温度()供冷进风湿球温度()供热进风干球温度()暗装抽吸式卧式新风2926余压(Pa)噪音(dB（八）)水阻力(mH20)机组电功率(kw)配套风机型号配套风机台数(台)配套风机功率(kw)285550.32DWF2.5S210.32三楼生产厂商产地产品名称产品型号产品商标冷量(kw)热量(kw)北京市舒特建筑科技有限责任公司北京超薄型吊顶式暗装空调机组ZKDXl-D410.912.9风量(m3h)水量(m3h

32、)设备安装尺寸(长)(mm)设备安装尺寸(宽)(mm)设备安装尺寸(高)(mm)销经商设备种类10001.871000970490新风空气处理机组机组安装方式风机安装方式机组外形机组工况供冷进风干球温度(qC)冷风球度0C)供进湿温1热风球度C供进干温1暗装抽吸式新风3428-4冷水进口温度(C)水口度pC)热进温(余压(Pa)噪音W(dB（八）)水阻力(mH2O)S率(kw)配套风机型号1503.90.18散流器选型一楼生产厂商产地产品名产品型规格尺规格尺称号寸(长)(mm)寸(宽)(mm)北京青云航空仪表公司北京防火风口FFH-15500400二三楼生产厂商产地产品名称产品型号规格尺寸(长

33、)(mm)规格尺寸(宽)(mm)北京市舒特建筑科技有限责任公司北京条缝形风口GZ1345446 .风管水力计算参考下表：低速风管内风速参考(ms)室内同意噪声级dB（八）主管风速支管风速253534235504-72350656925658581258由各楼层风管布置图可得最不利环路的各管段水力计算如下一楼一楼风管水力计算编-7I11J号风量m3h管宽mm管高mm管长mV(m/s)R(Pam)Py(Pa)Pj(Pa)Py+Pj(Pa)160100801.5862.0830.84915621201601002.1052.0830.53415633002501504.7232.2220.3492101244203001502.9842.5930.396156554035()1503.6222.8570.41415666003501503.0773.1750.499210127660