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本科毕业论文目录本科毕业论文（20届）温州某五层教学楼半集中式中央空调设计专业：建筑环境与设备工程 本科毕业论文目录目录摘要11前言32工程概况42.1土建资料42.2室外设计参数42.3室内设计参数42.4人员和新风标准43空调负荷计算53.1外墙和屋面冷负荷计算53.2内墙、楼板的冷负荷计算53.3外窗瞬变传热形成的冷负荷计算63.4外窗日射得热形成的冷负荷计算63.5室内热源散热形成的冷负荷计算63.5.1设备散热形成的冷负荷63.5.2照明散热形成的冷负荷73.5.3人体散热形成的冷负荷73.6冷负荷计算表73.7人体湿负荷的计算253.8新风冷负荷的计算274风机盘管和新风机组选型设计305气流组织计算346新风管的设计计算377空调水系统设计457.1供回水管设计457.2冷凝水管的设计508机房布置和选择528.1冷水机组的选择528.2冷却水系统设计528.3冷却水泵型号的选择528.4冷冻水泵型号的选择539消声和防震的设计5410管道保温及防腐的设计55小结56【参考文献】57外文翻译58 本科毕业论文摘要摘要本设计为温州市某五层教学楼中央空调系统，为之设计合理的中央空调系统,为室内学习和工作人员提供舒适的环境。建筑共五层，总面积为4236m²，层高3.5m，总高17.5m。设计的空调系统采用风机盘管加独立新风系统,选用水冷机组制冷冻水供冷。设计的内容包括：根据土建和气象等资料，利用负荷计算公式进行房间冷负荷和湿负荷的计算。根据房间用途确定新风量，并确定新风供给方式和处理方案，绘制焓湿图。接下来通过计算，根据冷量和风量进行风机盘管和新风机组的选型。选定送风方式，进行气流组织的计算，确定散流器的个数和型号。初步绘制图纸，进行风系统和水系统的设计、布置与水力计算，确定风管尺寸和水管的直径，并进行校验。按标准进行冷凝水管的设计。进行冷冻机房的部分设备的计算与选型。机组的消声隔振的设计。风管系统与水管系统保温和防腐的设计。绘制风系统与水系统的平面图和系统图，绘制机房的平面布置图。[关键词]教学楼；中央空调；风机盘管；独立新风系统；负荷；水力计算0 本科毕业论文AbstractSemi-centralAir-conditioningDesignoftheFive-storyClassroomBuildinginWenzhou[Abstract]Thisdesignforbuildingisafivelayersofwenzhou,thecentralairconditioningsystemforreasonabledesignofcentralairconditionersystems,studyandworkforindoorprovidecomfortableenvironment.Building,atotaloffivelayersfor4236squaremeters,storeyheight3.5meters,totalhigh17.5meters.Designoftheairconditioningsystemadoptfan-coilunitplusfreshairsystem,andchooseindependentlyofchilledwatercoolingwatercoolingunits.Thedesigncontentincludes:accordingtocivilandmeteorologicaldata,usingloadcalculationformulaforcoolingloadandroommoistureloadcalculation.AccordingtoroomUSESvolume,anddeterminedtosetnewfreshairsupplymodeandtreatmentscheme,drawingenthalpywetfigure.Next,throughcalculationaccordingtothecoldquantityandwindandfreshairfan-coilunitselection.Selectthewayofventilation,undertakeairfloworganizationcalculation,determinethenumberandisscatteredflowmodels.Preliminaryrenderingdrawings,undertakeairsystemandwatersystemdesign,layoutandhydrauliccalculationanddeterminethediameteroftheductsizesandconduit,andcalibration.Accordingtothestandardonthedesignofcondensatepipes.Partoftheequipmentoncoolingroomcalculationandselection.Unitsofsilencingthedesignofvibrationisolation.Ductsystemandwaterpipesystemofheatpreservationandtheanticorrosiondesign.Drawairsystemandwatersystemplanandsystemgraph,thelayoutdrawingroom.[KeyWords]Classroombuilding;Thecentralairconditioning;Fancoil;Independentfreshairsystem;Load;Hydrauliccalculation57本科毕业论文正文57 本科毕业论文正文1前言空气调节的意义在于使空气达到所要求的状态，一般指在某一特定空间内，对空气温度、湿度、流动速度及清洁度进行人工调节，以满足人们工作、生活和工艺生产过程的要求。空气调节技术是当今发展很快的一门技术，它与人们的生活水平息息相关。按负担室内负荷所用的介质可将空气调节系统划分为全空气系统，全水系统，空气—水系统，制冷剂系统。由于空调装置的广泛应用，需要设置空调系统的大型建筑物越来越多，如果仅靠空气来负担热湿负荷，将占用较大的空间，并造成初投资的增加，但如果仅靠水来负担室内热湿负荷，又会造成空气质量无法保障，因此可以同时使用水和空气来负担空调室内的热湿负荷。本设计就是风机盘管加新风系统，用盘管处理室内回风，而室内卫生则依靠新风机组集中处理后由新风管网统一供给。57 本科毕业论文正文2工程概况本工程是温州某五层教学楼中央空调系统设计，该建筑共有5层，层高3.5m，总建筑高度17.5m，采用半集中式风机盘管加独立新风系统。2.1土建资料1、外墙为普通砖墙内外粉刷厚240mm，传热系数K=1.95，2、屋顶为水泥膨胀珍珠岩保温厚70mm，传热系数K=1.10，3、内墙为普通砖墙内外粉刷厚120mm，传热系数K=2.37，4、楼板为钢筋混凝土加粉刷和面层，传热系数K=3.13，5、窗为6mm单层玻璃，传热系数K=5.94，2.2室外设计参数夏季：空调室外计算干球温度32.8℃，湿球温度28.7℃，空调日平均温度29.6℃冬季：空调室外计算干球温度1℃，空调室外计算相对湿度75%2.3室内设计参数夏季：温度26℃，湿度60%，冬季：温度18℃，湿度60%，2.4人员和新风标准单位面积人数：教室0.8人/，老师办公室0.2人/，大礼堂1人/，会议室0.5人/，校长办公室1人，实验室0.6人/。新风量：所有房间类型都取20人，走廊和大厅取557 本科毕业论文正文3空调负荷计算本设计采用谐波法的工程简化计算方法。3.1外墙和屋面冷负荷计算在日射和室外气温综合作用下，外墙和屋面瞬变传热引起的逐时冷负荷可按下式计算：（3—1）式中——计算时间，h；——围护结构表面受到周期为24h谐性温度波作用，温度波传到内表面的时间延迟，h；——温度波的作用时间，即温度波作用于围护结构外表面的时间，h；K——围护结构传热系数，；F——围护结构计算面积，；——地点修正系数，℃；——作用时刻下，围护结构的冷负荷计算温差，即负荷温差。3.2内墙、楼板的冷负荷计算内墙的冷负荷是通过温差传热而产生的，这部分可以视为稳定的传热不随时间的变化。负荷可按下式计算：（3—2）式中——内墙或楼板的冷负荷，w；K——内墙或楼板的传热系数，℃；F——内墙或楼板的计算面积，；——夏季空调室外计算日平均温度，℃；——附加温升，取邻室平均温度与室外计算日平均温度的差值，℃；——室内设计温度，℃。57 本科毕业论文正文3.3外窗瞬变传热形成的冷负荷计算在室内外温差的作用下，外窗瞬变传导得热形成的冷负荷可按下式计算：（3—3）式中——地点修正系数，℃；K——外窗传热系数，；F——外窗计算面积，；——计算时刻的负荷温差，℃；3.4外窗日射得热形成的冷负荷计算负荷可按下式计算：（3—4）式中——窗的有效面积系数，这里为单层钢窗，取0.85；——地点修正系数；——窗内遮阳设施的遮阳系数；——窗玻璃的遮挡系数；——计算时刻日射负荷强度，；3.5室内热源散热形成的冷负荷计算3.5.1设备散热形成的冷负荷设办公室1人配备1台电脑，每个教室配备1台电脑，电脑功率250w左右。负荷可按下式计算：（3—5）式中——设备显热形成的冷负荷，w；——电子设备的安装功率，w；57 本科毕业论文正文——电子设备效率，取76%；——利用系数，取0.8；——同时使用系数，取0.8；——负荷系数，取1.0；——设备负荷强度系数。3.5.2照明散热形成的冷负荷设所有房间照明取15，走廊取5。负荷可按下式计算：（3—6）式中——照明灯具所需的功率，w；——镇流器消耗功率系数，这里取1.2；——灯罩隔热系数，这里取0.6；——照明负荷强度系数3.5.3人体散热形成的冷负荷人体散热有显热和潜热两部分，学校群集系数取0.89。负荷可按下式计算：（3—7）式中——不同室温和劳动性质的成年男子显热散热量，w；——室内全部人数；——群集系数；——人体负荷强度系数；——不同室温和劳动性质的成年男子潜热散热量，w；57 本科毕业论文正文3.6冷负荷计算表第一层房间类型1负荷表3.1西外墙冷负荷时刻w/(m2.k)(m2)（k）（℃）（w）7:001.9522.30101478.348:0091434.859:0091434.8510:0081391.3711:0071347.8812:0071347.8813:0071347.8814:0071347.8815:0071347.8816:0071347.8817:0071347.88表3.2南外墙冷负荷时刻w/(m2.k)(m2)（k）（℃）（w）7:001.9522.1561302.358:0061302.359:0061302.3510:0051259.1611:0051259.1612:0051259.1613:0051259.1614:0051259.1615:0051259.1616:0051259.1617:0061302.35表3.3南外窗瞬时传热冷负荷57 本科毕业论文正文时刻w/(m2.k)(m2)（k）（℃）（w）7:005.947.51.2198.018:002.01133.659:002.91173.75续表10:003.91218.3011:004.91262.8512:005.81302.9413:006.41329.6714:007.01356.4015:007.41374.2216:007.41374.2217:007.21365.31表3.4南外窗日射得热冷负荷时刻(m2)（w/m2）（w）7:007.50.850.80.890.652367.868:0038112.119:0052153.4210:0076224.2311:0099292.0812:00114336.3413:00114336.3414:00100295.0415:0081238.9816:0069203.5717:0053156.37表3.5设备冷负荷时刻（w）（w）7:000.80.81.00.76250008:000.5829.3157 本科毕业论文正文9:000.7738.9110:000.8140.9311:000.8442.4412:000.8743.9613:000.8944.97续表14:000.9045.4715:000.9246.4816:000.3718.6917:000.199.60表3.6照明冷负荷时刻（w）（w）7:001.20.6809.3008:000.43250.569:000.63367.1010:000.7407.8911:000.75437.0212:000.79460.3313:000.83483.6414:000.85495.2915:000.88512.7716:000.49285.5217:000.30174.81表3.7人体形成冷负荷时刻（w）（w）（w）7:000430.8963451722.158:000.532999.999:000.713433.9710:000.773578.6311:000.813675.0712:000.843747.4057 本科毕业论文正文13:000.863795.6214:000.893867.9515:000.903892.0616:000.412710.6617:000.232276.68对以上的表格进行汇总得表3.8，其它房间计算方法同上。表3.8第一层的类型1房间冷负荷汇总时刻西外墙冷负荷南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00478.34302.3598.0167.860.000.001722.152668.718:00434.85302.35133.65112.1129.31250.562999.994262.829:00434.85302.35173.75153.4238.91367.103433.974904.3510:00391.37259.16218.30224.2340.93407.893578.635120.5111:00347.88259.16262.85292.0842.44437.023675.075316.512:00347.88259.16302.94336.3443.96460.333747.405498.0113:00347.88259.16329.67336.3444.97483.643795.625597.2814:00347.88259.16356.40295.0445.47495.293867.955667.1915:00347.88259.16374.22238.9846.48512.773892.065671.5516:00347.88259.16374.22203.5718.69285.522710.664199.717:00347.88302.35365.31156.379.60174.812276.683633表3.9第一层的类型2房间冷负荷汇总时刻南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00279.8398.0167.860.000.001642.052087.758:00279.83133.65112.1129.31236.662860.453652.019:00279.83173.75153.4238.91346.733274.254266.8910:00239.85218.30224.2340.93385.263412.184520.7511:00239.85262.85292.0842.44412.783504.134754.1312:00239.85302.94336.3443.96434.793573.104930.9813:00239.85329.67336.3444.97456.813619.085026.7214:00239.85356.40295.0445.47467.813688.045092.6157 本科毕业论文正文15:00239.85374.22238.9846.48484.323711.035094.8816:00279.83374.22203.5718.69269.682584.593730.5817:00279.83365.31156.379.60165.112170.793147.01表3.10第一层的类型3房间冷负荷汇总时刻南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00173.3649.0133.930.000.00961.201217.58:00173.3666.8356.0629.31139.041674.412139.019:00173.3686.8776.7138.91203.711916.632496.1910:00148.59109.15112.1140.93226.351997.372634.511:00148.59131.42146.0442.44242.512051.202762.212:00148.59151.47168.1743.96255.452091.572859.2113:00148.59164.84168.1744.97268.382118.482913.4314:00148.59178.20147.5245.47274.852158.862953.4915:00148.59187.11119.4946.48284.552172.312958.5316:00173.36187.11101.7918.69158.441512.932152.3217:00173.36182.6678.189.6097.011270.711811.52表3.11第一层的类型4房间冷负荷汇总时刻南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00106.4749.0133.930.000.00259.88449.298:00106.4766.8356.06117.2297.62374.97819.179:00106.4786.8776.71155.62143.02414.06982.7510:0091.26109.15112.11163.71158.91427.091062.2311:0091.26131.42146.04169.77170.26435.781144.5312:0091.26151.47168.17175.83179.34442.291208.3613:0091.26164.84168.17179.87188.42446.641239.2014:0091.26178.20147.52181.89192.96453.151244.9815:0091.26187.11119.49185.94199.77455.321238.8916:00106.47187.11101.7974.78111.24348.92930.3117:00106.47182.6678.1838.4068.10309.83783.6457 本科毕业论文正文表3.12第一层的类型5房间冷负荷汇总时刻西内墙冷负荷北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00266.77197.2449.0198.490.000.00961.201572.71续表8:00266.77197.2466.8396.4829.31138.361674.412469.409:00266.77169.0786.87112.5638.91202.711916.632793.5210:00266.77169.07109.15132.6640.93225.241997.372941.1911:00266.77169.07131.42146.7242.44241.332051.203048.9512:00266.77169.07151.47156.7743.96254.202091.573133.8113:00266.77169.07164.84158.7844.97267.072118.483189.9814:00266.77169.07178.20154.7645.47273.502158.863246.6315:00266.77169.07187.11142.7046.48283.162172.313267.6016:00266.77197.24187.11128.6418.69157.671512.932469.0517:00266.77197.24182.66134.679.6096.531270.712158.18表3.13第一层的类型6房间冷负荷汇总时刻北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00279.8398.01196.970.000.001481.852056.668:00279.83133.65192.9529.31212.882581.383430.009:00239.85173.75225.1138.91311.902954.813944.3310:00239.85218.30265.3140.93346.553079.284190.2211:00239.85262.85293.4542.44371.303162.274372.1612:00239.85302.94313.5543.96391.113224.514515.9213:00239.85329.67317.5744.97410.913266.004608.9714:00239.85356.40309.5345.47420.813328.244700.3015:00239.85374.22285.4146.48435.663348.984730.6016:00279.83374.22257.2718.69242.592332.433505.0317:00279.83365.31269.339.60148.521959.013031.6057 本科毕业论文正文57 本科毕业论文正文表3.14第一层的类型14房间冷负荷汇总时刻东外墙冷负荷南外墙冷负荷东窗瞬变得热东窗日射得热南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00227.10345.3559.59564.7435.2824.430.000.001281.602538.098:00201.86345.3581.26694.3848.1140.3629.31185.762232.553858.949:00201.86345.35105.64720.7562.5555.2338.91272.162555.514357.9610:00201.86296.01132.72630.6578.5980.7240.93302.402663.164427.0411:00201.86296.01159.81459.2694.62105.1542.44324.002734.934418.0812:00201.86296.01184.19329.61109.06121.0843.96341.282788.764415.8113:00227.10296.01200.44298.85118.68121.0844.97358.562824.654490.3414:00252.33296.01216.69270.28128.30106.2145.47367.202878.474560.9615:00277.56296.01227.53237.32134.7286.0346.48380.162896.424582.2316:00302.80345.35227.53204.35134.7273.2918.69211.682017.243535.6517:00302.80345.35222.11162.61131.5156.299.60129.601694.283054.1557 本科毕业论文正文表3.15第一层的类型15房间冷负荷汇总时刻东外墙冷负荷东窗瞬变得热东窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00105.3058.81557.300.000.00259.88981.298:0093.6080.19685.25117.2296.13374.971447.369:0093.60104.25711.27155.62140.84414.061619.6410:0093.60130.98622.36163.71156.49427.091594.2311:0093.60157.71453.21169.77167.67435.781477.7412:0093.60181.76325.27175.83176.61442.291395.3613:00105.30197.80294.92179.87185.55446.641410.0814:00117.00213.84266.73181.89190.03453.151422.6415:00128.70224.53234.20185.94196.73455.321425.4216:00140.40224.53201.6774.78109.54348.921099.8417:00140.40219.19160.4838.4067.07309.83935.37表3.16第一层的类型16房间冷负荷汇总时刻东外墙冷负荷东窗瞬变得热东窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00280.80156.821486.150.000.004159.866083.638:00249.60213.841827.3329.31297.225199.497816.799:00249.60277.991896.7238.91435.465552.578451.2510:00249.60349.271659.6340.93483.845670.268453.5311:00249.60420.551208.5942.44518.405748.728188.3012:00249.60484.70867.4043.96546.055807.577999.2813:00280.80527.47786.4544.97573.705846.808060.1914:00312.00570.24711.2745.47587.525905.658132.1515:00343.20598.75624.5346.48608.265925.268146.4816:00374.40598.75537.7918.69338.694964.106832.4217:00374.40584.50427.929.60207.364611.026214.80表3.17第一层的类型17房间冷负荷汇总时刻东外墙冷负荷北外墙冷负荷东窗瞬变得热东窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00335.82382.20115.851097.890.000.004159.866091.6257 本科毕业论文正文续表8:00298.51382.20157.971349.9429.31297.225199.497714.649:00298.51327.60205.371401.2038.91435.465552.578259.6210:00298.51327.60258.021226.0540.93483.845670.268305.2111:00298.51327.60310.68892.8442.44518.405748.728139.1912:00298.51327.60358.08640.8043.96546.055807.578022.5713:00335.82327.60389.67580.9844.97573.705846.808099.5414:00373.13327.60421.26525.4545.47587.525905.658186.0815:00410.45327.60442.33461.3746.48608.265925.268221.7516:00447.76382.20442.33397.2918.69338.694964.106991.0617:00447.76382.20431.80316.129.60207.364611.026405.86表3.18第一层的类型18房间冷负荷汇总时刻西外墙冷负荷南内墙冷负荷西窗瞬变得热西窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00484.77171.8770.5783.270.000.001321.652132.138:00440.70171.8796.23117.1029.31190.592302.313348.119:00440.70171.87125.10148.3338.91279.242635.373839.5210:00396.63171.87157.17174.3540.93310.262746.393997.6011:00352.56171.87189.25192.5642.44332.422820.404101.5012:00352.56171.87218.12205.5743.96350.152875.914218.1413:00352.56171.87237.36335.6844.97367.882912.924423.2414:00352.56171.87256.61580.2945.47376.752968.434751.9815:00352.56171.87269.44785.8746.48390.042986.935003.1916:00352.56171.87269.44892.5618.69217.182080.284002.5817:00352.56171.87263.02861.339.60132.971747.223538.57表3.19第一层的类型19房间冷负荷汇总时刻西外墙冷负荷北外墙冷负荷西窗瞬变得热西窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00484.77244.7070.5783.270.000.001321.652204.968:00440.70244.7096.23117.1029.31190.592302.313420.949:00440.70209.75125.10148.3338.91279.242635.373877.4010:00396.63209.75157.17174.3540.93310.262746.394035.4857 本科毕业论文正文续表11:00352.56209.75189.25192.5642.44332.422820.404139.3812:00352.56209.75218.12205.5743.96350.152875.914256.0213:00352.56209.75237.36335.6844.97367.882912.924461.1214:00352.56209.75256.61580.2945.47376.752968.434789.8615:00352.56209.75269.44785.8746.48390.042986.935041.0716:00352.56244.70269.44892.5618.69217.182080.284075.4117:00352.56244.70263.02861.339.60132.971747.223611.40表3.20第二层的类型7房间冷负荷汇总时刻南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00139.9149.0133.930.000.00816.381039.238:00139.9166.8356.0629.31118.331422.131832.579:00139.9186.8776.7138.91173.371627.862143.6310:00119.93109.15112.1140.93192.631696.442271.1911:00119.93131.42146.0442.44206.391742.152388.3712:00119.93151.47168.1743.96217.401776.442477.3713:00119.93164.84168.1744.97228.401799.302525.6114:00119.93178.20147.5245.47233.911833.592558.6215:00119.93187.11119.4946.48242.161845.022560.1916:00139.91187.11101.7918.69134.841284.981867.3217:00139.91182.6678.189.6082.561079.251572.16表3.21第二层的类型20房间冷负荷汇总时刻西内墙冷负荷东外墙冷负荷南外墙冷负荷东窗瞬变得热东窗日射得热南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00295.90308.35383.5061.75585.1798.0167.860.000.00844.612645.158:00295.90274.09383.5084.20719.51133.65112.11380.97300.851218.673903.459:00295.90274.09383.50109.46746.83173.75153.42505.77440.781345.714429.2110:00295.90274.09328.71137.53653.48218.30224.23532.04489.761388.054542.0911:00295.90274.09328.71165.59475.88262.85292.08551.75524.741416.284587.8712:00295.90274.09328.71190.85341.54302.94336.34571.45552.731437.464632.0157 本科毕业论文正文续表13:00295.90308.35328.71207.69309.66329.67336.34584.59580.711451.574733.1914:00295.90342.62328.71224.53280.06356.40295.04591.16594.711472.754781.8815:00295.90376.88328.71235.76245.91374.22238.98604.29615.701479.804796.1516:00295.90411.14383.50235.76211.75374.22203.57243.03342.831133.983835.6817:00295.90411.14383.50230.15168.49365.31156.37124.80209.901006.943352.50表3.22第二层的类型21房间冷负荷汇总时刻屋顶冷负荷西外墙冷负荷北外墙冷负荷东内墙冷负荷设备散热量照明散热量人体散热量总冷负荷7:002252.802649.501686.051639.360.000.005126.4013354.118:001971.202408.641686.051639.3629.311188.868930.1917853.619:001689.602408.641445.181639.3638.911741.8210222.0419185.5510:001971.202167.781445.181639.3640.931935.3610652.6619852.4711:002252.801926.911445.181639.3642.442073.6010939.7420320.0312:002816.001926.911445.181639.3643.962184.1911155.0521210.6513:003379.201926.911445.181639.3644.972294.7811298.5922028.9914:004224.001926.911445.181639.3645.472350.0811513.8923144.8915:004787.201926.911445.181639.3646.482433.0211585.6623863.8116:005632.001926.911686.051639.3618.691354.758068.9520326.7117:006195.201926.911686.051639.369.60829.446777.1019063.66表3.23第三层的类型8房间冷负荷汇总时刻东内墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00222.97384.20266.000.000.00941.981815.158:00222.97523.91439.4829.31136.531640.922993.129:00222.97681.08601.4038.91200.041878.303622.7010:00222.97855.72878.9740.93222.261957.434178.2811:00222.971030.351144.9742.44238.142010.184689.0512:00222.971187.521318.4543.96250.842049.745073.4813:00222.971292.311318.4544.97263.542076.125218.3614:00222.971397.091156.5445.47269.892115.685207.6415:00222.971466.94936.8046.48279.422128.875081.4857 本科毕业论文正文续表16:00222.971466.94798.0118.69155.581482.674144.8617:00222.971432.02612.969.6095.261245.293618.10表3.24第三层的类型9房间冷负荷汇总时刻北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00222.06446.270.000.00891.331559.668:00302.81437.1729.31129.191552.692451.179:00393.65510.0338.91189.281777.302909.1710:00494.58601.1040.93210.311852.173199.0911:00595.52664.8642.44225.341902.093430.2512:00686.36710.4043.96237.351939.523617.5913:00746.92719.5044.97249.371964.483725.2414:00807.48701.2945.47255.382001.923811.5415:00847.86646.6446.48264.392014.403819.7716:00847.86582.8918.69147.221402.952999.6117:00827.67610.219.6090.131178.332715.94表3.25第三层的类型22房间冷负荷汇总时刻北内墙冷负荷南外墙冷负荷西内墙冷负荷东窗瞬变得热东窗日射得热照明散热量人体散热量总冷负荷7:00675.88468.20260.13365.903467.680.002330.917568.708:00675.88468.20260.13498.964263.77540.564060.4510767.959:00675.88468.20260.13648.654425.68791.994647.8311918.3610:00675.88401.31260.13814.973872.47879.984843.6311748.3711:00675.88401.31260.13981.292820.02942.844974.1611055.6312:00675.88401.31260.131130.982023.94993.125072.0610557.4213:00675.88401.31260.131230.771835.041043.415137.3310583.8714:00675.88401.31260.131330.561659.631068.555235.2210631.2815:00675.88401.31260.131397.091457.241106.275267.8610565.7816:00675.88468.20260.131397.091254.84615.993668.858340.9817:00675.88468.20260.131363.82998.48377.143081.467225.1157 本科毕业论文正文表3.26第四层的类型8房间冷负荷汇总时刻屋顶东内墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00230.74222.97384.20266.000.000.00941.982045.898:00201.89222.97523.91439.4829.31136.531640.923195.019:00173.05222.97681.08601.4038.91200.041878.303795.7510:00201.89222.97855.72878.9740.93222.261957.434380.1711:00230.74222.971030.351144.9742.44238.142010.184919.7912:00288.42222.971187.521318.4543.96250.842049.745361.9013:00346.10222.971292.311318.4544.97263.542076.125564.4614:00432.63222.971397.091156.5445.47269.892115.685640.2715:00490.31222.971466.94936.8046.48279.422128.875571.7916:00576.84222.971466.94798.0118.69155.581482.674721.7017:00634.52222.971432.02612.969.6095.261245.294252.62表3.27第四层的类型10房间冷负荷汇总时刻南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00139.9149.0133.930.000.00259.88482.738:00139.9166.8356.06117.2295.67374.97850.669:00139.9186.8776.71155.62140.16414.061013.3310:00119.93109.15112.11163.71155.74427.091087.7311:00119.93131.42146.04169.77166.86435.781169.8012:00119.93151.47168.17175.83175.76442.291233.4513:00119.93164.84168.17179.87184.66446.641264.1114:00119.93178.20147.52181.89189.11453.151269.8015:00119.93187.11119.49185.94195.78455.321263.5716:00139.91187.11101.7974.78109.02348.92961.5317:00139.91182.6678.1838.4066.74309.83815.72表3.28第四层的类型11房间冷负荷汇总时刻北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00139.9149.0198.490.000.00259.88547.298:00139.9166.8396.48117.2295.67374.97891.0857 本科毕业论文正文续表9:00119.9386.87112.56155.62140.16414.061029.210:00119.93109.15132.66163.71155.74427.091108.2811:00119.93131.42146.72169.77166.86435.781170.4812:00119.93151.47156.77175.83175.76442.291222.0513:00119.93164.84158.78179.87184.66446.641254.7214:00119.93178.20154.76181.89189.11453.151277.0415:00119.93187.11142.70185.94195.78455.321286.7816:00139.91187.11128.6474.78109.02348.92988.3817:00139.91182.66134.6738.4066.74309.83872.21表3.29第四层的类型20房间冷负荷汇总时刻西内墙冷负荷东外墙冷负荷南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00295.90391.28383.5098.0167.860.000.00844.612081.168:00295.90347.80383.50133.65112.11380.97300.851218.673173.459:00295.90347.80383.50173.75153.42505.77440.781345.713646.6310:00295.90347.80328.71218.30224.23532.04489.761388.053824.7911:00295.90347.80328.71262.85292.08551.75524.741416.284020.1112:00295.90347.80328.71302.94336.34571.45552.731437.464173.3313:00295.90391.28328.71329.67336.34584.59580.711451.574298.7714:00295.90434.75328.71356.40295.04591.16594.711472.754369.4215:00295.90478.23328.71374.22238.98604.29615.701479.804415.8316:00295.90521.70383.50374.22203.57243.03342.831133.983498.7317:00295.90521.70383.50365.31156.37124.80209.901006.943064.42表3.30第四层的类型23房间冷负荷汇总时刻北外墙冷负荷东外墙冷负荷西内墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00195.81491.40371.6249.0198.490.000.0064.971271.308:00195.81436.80371.6266.8396.4829.31185.7693.741476.359:00167.84436.80371.6286.87112.5638.91272.16103.521590.2810:00167.84436.80371.62109.15132.6640.93302.40106.771668.1757 本科毕业论文正文续表11:00167.84436.80371.62131.42146.7242.44324.00108.941729.7812:00167.84436.80371.62151.47156.7743.96341.28110.571780.3113:00167.84491.40371.62164.84158.7844.97358.56111.661869.6714:00167.84546.00371.62178.20154.7645.47367.20113.291944.3815:00167.84600.60371.62187.11142.7046.48380.16113.832010.3416:00195.81655.20371.62187.11128.6418.69211.6887.231855.9817:00195.81655.20371.62182.66134.679.60129.6077.461756.62表3.31第五层的类型1房间冷负荷汇总时刻屋顶冷负荷西外墙冷负荷南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00474.79478.34302.3598.0167.860.000.001722.153143.508:00415.45434.85302.35133.65112.1129.31250.562999.994678.279:00356.10434.85302.35173.75153.4238.91367.103433.975260.4510:00415.45391.37259.16218.30224.2340.93407.893578.635535.9611:00474.79347.88259.16262.85292.0842.44437.023675.075791.2912:00593.49347.88259.16302.94336.3443.96460.333747.406091.5013:00712.19347.88259.16329.67336.3444.97483.643795.626309.4714:00890.24347.88259.16356.40295.0445.47495.293867.956557.4315:001008.94347.88259.16374.22238.9846.48512.773892.066680.4916:001186.99347.88259.16374.22203.5718.69285.522710.665386.6917:001305.68347.88302.35365.31156.379.60174.812276.684938.68表3.32第五层的类型10房间冷负荷汇总时刻屋顶冷负荷南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00193.60139.9149.0133.930.000.00259.88676.338:00169.40139.9166.8356.06117.2295.67374.971020.069:00145.20139.9186.8776.71155.62140.16414.061158.5310:00169.40119.93109.15112.11163.71155.74427.091257.1311:00193.60119.93131.42146.04169.77166.86435.781363.4012:00242.00119.93151.47168.17175.83175.76442.291475.4513:00290.40119.93164.84168.17179.87184.66446.641554.5157 本科毕业论文正文续表14:00363.00119.93178.20147.52181.89189.11453.151632.8015:00411.40119.93187.11119.49185.94195.78455.321674.9716:00484.00139.91187.11101.7974.78109.02348.921445.5317:00532.40139.91182.6678.1838.4066.74309.831348.12表3.33第五层的类型2房间冷负荷汇总时刻屋顶冷负荷东外墙冷负荷南外墙冷负荷南窗瞬变得热南窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00448.45299.14279.8398.0167.860.000.001642.052835.348:00392.39265.90279.83133.65112.1129.31236.662860.454310.309:00336.34265.90279.83173.75153.4238.91346.733274.254869.1310:00392.39265.90239.85218.30224.2340.93385.263412.185179.0411:00448.45265.90239.85262.85292.0842.44412.783504.135468.4812:00560.56265.90239.85302.94336.3443.96434.793573.105757.4413:00672.67299.14239.85329.67336.3444.97456.813619.085998.5314:00840.84332.38239.85356.40295.0445.47467.813688.046265.8315:00952.95365.62239.85374.22238.9846.48484.323711.036413.4516:001121.12398.85279.83374.22203.5718.69269.682584.595250.5517:001233.23398.85279.83365.31156.379.60165.112170.794779.09表3.34第五层的类型12房间冷负荷汇总时刻屋顶冷负荷西内墙冷负荷北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00463.90266.17337.1698.01196.970.000.001682.103044.318:00405.91266.17337.16133.65192.9529.31244.812930.224540.189:00347.93266.17288.99173.75225.1138.91358.683354.115053.6510:00405.91266.17288.99218.30265.3140.93398.533495.405379.5411:00463.90266.17288.99262.85293.4542.44427.003589.605634.4012:00579.88266.17288.99302.94313.5543.96449.773660.255905.5113:00695.85266.17288.99329.67317.5744.97472.553707.356123.1214:00869.81266.17288.99356.40309.5345.47483.933778.006398.3015:00985.79266.17288.99374.22285.4146.48501.013801.556549.6216:001159.75266.17337.16374.22257.2718.69278.972647.635339.8617:001275.73266.17337.16365.31269.339.60170.802223.744917.8457 本科毕业论文正文表3.35第五层的类型6房间冷负荷汇总时刻屋顶冷负荷北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00403.39279.8398.01196.970.000.001481.852460.058:00352.97279.83133.65192.9529.31212.882581.383782.979:00302.54239.85173.75225.1138.91311.902954.814246.8710:00352.97239.85218.30265.3140.93346.553079.284543.1911:00403.39239.85262.85293.4542.44371.303162.274775.5512:00504.24239.85302.94313.5543.96391.113224.515020.1613:00605.09239.85329.67317.5744.97410.913266.005214.0614:00756.36239.85356.40309.5345.47420.813328.245456.6615:00857.21239.85374.22285.4146.48435.663348.985587.8116:001008.48279.83374.22257.2718.69242.592332.434513.5117:001109.33279.83365.31269.339.60148.521959.014140.93表3.36第五层的类型13房间冷负荷汇总时刻屋顶冷负荷北外墙冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00201.70139.9149.0198.490.000.00720.901210.018:00176.48139.9166.8396.4829.31106.441255.811871.269:00151.27119.9386.87112.5638.91155.951437.472102.9610:00176.48119.93109.15132.6640.93173.281498.032250.4611:00201.70119.93131.42146.7242.44185.651538.402366.2612:00252.12119.93151.47156.7743.96195.551568.682488.4813:00302.54119.93164.84158.7844.97205.451588.862585.3714:00378.18119.93178.20154.7645.47210.411619.142706.0915:00428.60119.93187.11142.7046.48217.831629.232771.8816:00504.24139.91187.11128.6418.69121.291134.702234.5817:00554.66139.91182.66134.679.6074.26953.032048.79表3.37第五层的类型9房间冷负荷汇总时刻屋顶冷负荷北窗瞬变得热北窗日射得热设备散热量照明散热量人体散热量总冷负荷7:00245.61222.06446.270.000.00891.331805.278:00214.91302.81437.1729.31129.191552.692666.0857 本科毕业论文正文续表9:00184.21393.65510.0338.91189.281777.303093.3810:00214.91494.58601.1040.93210.311852.173414.0011:00245.61595.52664.8642.44225.341902.093675.8612:00307.01686.36710.4043.96237.351939.523924.6013:00368.41746.92719.5044.97249.371964.484093.6514:00460.52807.48701.2945.47255.382001.924272.0615:00521.92847.86646.6446.48264.392014.404341.6916:00614.02847.86582.8918.69147.221402.953613.6317:00675.42827.67610.219.6090.131178.333391.363.7人体湿负荷的计算可按下式计算：（3—8）式中——人体散湿量，kg/h；——室内全部人数；——群集系数；——成年男子小时散湿量，kg/h。教室、大会堂、会议室的人员活动性质为静坐，g=68g/h；办公室为极轻劳动，g=109g/h；实验室为轻度劳动，g=184g/h。以一层类型1教室为例：=0.001×43×0.89×68=2.6kg/h=0.00072kg/s表3.38所有房间冷负荷及湿负荷汇总房间类型相同类型数最大冷负荷kw人数湿负荷kg/s一层115.7430.00072一层215.1410.00069一层313.0240.00042一层411.240.00011一层513.3240.00042一层624.7370.00061一层1414.6320.0005357 本科毕业论文正文续表一层1511.640.00011一层1618.5380.00172一层1718.3380.00172一层1815.0330.00056一层1915.0330.00056二层115.7430.00072二层513.3240.00042二层624.7370.00061二层742.6200.00033二层2014.8130.00036二层21123.91280.00214三层115.7430.00072三层225.1410.00069三层513.3240.00042三层624.7370.00061三层815.2240.00042三层913.8220.00036三层2014.8130.00036三层22111.9580.00097四层115.7430.00072四层215.1410.00069四层513.3240.00042四层614.7370.00061四层815.6240.00042四层913.8220.00036四层1021.340.00011四层1121.340.00011四层2014.4130.00036四层2312.010.00003五层116.7430.00072五层216.4410.00069五层615.6370.0006157 本科毕业论文正文续表五层914.3220.00036五层1021.740.00011五层1216.6420.00069五层1312.8180.000313.8新风冷负荷的计算按下式计算：（3—9）式中——新风冷负荷，kw；——新风量，kg/s；——室外空气的焓值，kJ/kg；——室内空气的焓值，kJ/kg。第一层类型1房间的新风负荷计算举例：室外参数：=32.8℃，=28.7℃；可查得=93.2kJ/kg；室内参数：=26℃，=60%；可查得=58.4kJ/kg；kw表3.39所有房间新风冷负荷计算结果房间类型相同类型数人数新风量kg/s新风负荷kw一层11430.28679.98一层21410.27339.51一层31240.165.57一层4140.02670.93一层51240.165.57一层62370.24678.58一层141320.21337.42一层15140.02670.9357 本科毕业论文正文一层161380.25338.82续表一层171380.25338.82一层181330.227.66一层191330.227.66二层11430.28679.98二层51240.165.57二层62370.24678.58二层74200.13334.64二层201130.08673.02二层2111280.853329.70三层11430.28679.98三层22410.27339.51三层51240.165.57三层62370.24678.58三层81240.165.57三层91220.14675.10三层201130.86673.02三层221580.386713.46四层11430.28679.98四层21410.27339.51四层51240.165.57四层61370.24678.58四层81240.165.57四层91220.14675.10四层10240.02670.93四层11240.02670.93四层201130.86673.02四层23110.00670.23五层11430.28679.98五层21410.27339.51五层61370.24678.5857 本科毕业论文正文五层91220.14675.10续表五层10240.02670.93五层121420.289.74五层131180.124.18走廊和大厅由于大部分时间处于无人状态，只有下课的10分钟有人员。为了节能考虑，故只供送经过处理后的新风，不另外安装风机盘管。表3.40走廊和大厅新风负荷计算结果楼层区域面积标准新风量新风冷负荷kw一层左走廊4852402.8左大厅10755356.2右大厅10855406.3右走廊6253103.6二层走廊5552753.2左厅6753353.9过道185901.0右厅9054505.2三层走廊6753353.9电梯厅2751351.6过道185901.0四层走廊6753353.9电梯厅2751351.6过道185901.0五层走廊5552753.2电梯厅195951.1小厅4352152.557 本科毕业论文正文4风机盘管和新风机组选型设计采用新风不承担室内负荷的方案，即送入室内新风的焓处理到与室内空气焓相等。根据室内空气线、新风处理后的机器露点相对湿度即可定出新风处理后的机器露点L点。焓湿图如下：图4.1第一层类型1房间计算举例室内热湿比及房间送风量：过N点作线按最大送风温差与=95%线相交，即得送风点O，则总送风量为：=1290，风机盘管风量：=，由得：，可算出=18.8，风机盘管供冷量：57 本科毕业论文正文风机盘管选型时所需冷量乘以1.2的修正系数：kW选用奥克斯空调设备有限公司的FP-68WA/B型号风机盘管2台，每台风量680，冷量3.6kW，能满足要求。表4.1风机盘管选型表房间风机盘管所需风量风机盘管修正后所需冷量KW型号单台风量单台制冷量KW水量kg/h水阻力kPa台数一层14376.80FP-68WA/B6803.6800202一层22526.01FP-68WA/B6803.6800202一层31263.52FP-68WA/B6803.6800201一层42701.76FP-34WA/B3401.8350101一层52673.95FP-85WA/B8504.5950371一层63005.60FP-68WA/B6803.6800202一层145095.76FP-68WA/B6803.6800202一层154582.70FP-51WA/B5102.7610121一层16129710.61FP-102WA/B10205.41080392一层1710989.87FP-102WA/B10205.41080392一层186196.36FP-68WA/B6803.6800202一层196196.36FP-68WA/B6803.6800202二层14446.86FP-68WA/B6803.6800202二层52693.96FP-85WA/B8504.5950371二层63005.60FP-68WA/B6803.6800202二层71923.12FP-68WA/B6803.6800201二层2012987.82FP-85WA/B8504.5950372二层21455334.36FP-136WA/B13607.21390286三层14446.86FP-68WA/B6803.680020257 本科毕业论文正文三层22606.02FP-68WA/B6803.6800202三层52693.96FP-85WA/B8504.5950371续表三层63005.60FP-68WA/B6803.6800202三层811527.92FP-85WA/B8504.5950372三层96955.40FP-102WA/B10205.41080391三层2012987.82FP-85WA/B8504.5950372三层22255917.97FP-85WA/B8504.5950374四层14446.86FP-68WA/B6803.6800202四层22606.02FP-68WA/B6803.6800202四层52693.96FP-85WA/B8504.5950371四层63005.60FP-68WA/B6803.6800202四层813388.84FP-85WA/B8504.5950372四层96955.40FP-102WA/B10205.41080391四层103192.00FP-51WA/B5102.7610121四层113192.00FP-51WA/B5102.7610121四层2011136.87FP-68WA/B6803.6800202四层238494.54FP-102WA/B10205.41080391五层19108.71FP-85WA/B8504.5950372五层28678.31FP-85WA/B8504.5950372五层67247.22FP-68WA/B6803.6800202五层98866.39FP-136WA/B13607.21390281五层105042.94FP-68WA/B6803.6800201五层129408.70FP-85WA/B8504.5950372五层133633.59FP-68WA/B6803.680020157 本科毕业论文正文选用开利的吊顶式新风机，每层一个，选新风机组时所需新风负荷乘以1.2的修正系数。表4.2新风机组选型表楼层修正后所需新风负荷kW修正后所需新风量新风机组型号冷量kW风量水阻力kPa水量t/h外形尺寸一130.009385DBFP10130.01000071.513.981970×1413×595二116.758390DBFP10130.01000071.513.981970×1413×595三102.467360DBFP8105.3800056.712.581710×1413×595四69.344981DBFP677.1600064.1011.042044×986×500五66.904805DBFP677.1600064.1011.042044×986×50057 本科毕业论文正文5气流组织计算散流器送风的计算：工作区平均风速与房间大小、射流的射程有关，可按下式计算：（5—1）式中—工作区平均风速，m/s；当送冷风时，应增加20%；—射程，m；—散流器服务区边长，m；H—房间净高，m。以一层的类型1房间为例：房间尺寸为8.29m×6.26m，净高3m，送风量为437，布置四个散流器，每个散流器送风量为。查表时初选方形散流器尺寸120mm120mm，颈部风速2m/s，可查得当风量为104时，射程1.78m。散流器中心到区域边缘距离为1.5m，根据要求，散流器的射程应为散流器中心到房间或区域边缘的距离的75%，所需最小的射程为：1.5m75%=1.125m。1.78m>1.125m，因此射程满足要求。57 本科毕业论文正文校核工作区的平均风速：=m/s夏季送冷风，室内平均风速为0.191.2=0.23m/s，满足舒适性空调夏季室内风速不大于0.3m/s的要求。所以所选散流器符合要求。表5.1方形散流器选型表房间类型规格尺寸mmmm个数一层1120*1204一层2120*1204一层3120*1202续表一层4120*1202一层5120*1202一层6120*1204一层14120*1204一层15150*1502一层16150*1504一层17150*1504一层18150*1502一层19150*1503二层1120*1204二层5120*1202二层6120*1204二层7150*1502二层20150*1504二层21180*18012三层1120*1204三层2120*1204三层5120*1202三层6120*120457 本科毕业论文正文三层8200*2002三层9120*1202三层20150*1504三层22150*1508四层1120*1204四层2120*1204四层5120*1202四层6120*1204四层8200*2002四层9120*1202四层10150*1501四层11150*1502续表四层20150*1504四层23180*1802五层1150*1504五层2150*1504五层6150*1504五层9180*1802五层10200*2001五层12150*1504五层13150*1502表5.2方形散流器选型表楼层区域新风量规格尺寸mmmm个数一层左走廊240120*1202左大厅535150*1502右大厅540150*1502右走廊310120*1202二层走廊275120*1202左厅335120*120257 本科毕业论文正文过道90120*1201右厅450150*1502三层走廊335120*1203电梯厅135120*1201过道90120*1201四层走廊335120*1203电梯厅135120*1201过道90120*1201五层走廊275120*1202电梯厅95120*1201小厅215150*15016新风管的设计计算目前空调工程中常用假定流速法，初选管段的流速，再根据管段的风量确定其断面尺寸，并计算风道的流速与阻力，进行不平衡率的检验。风管的压力损失：（6—1）式中—风管的沿程压力损失，Pa；—风管的局部压力损失，Pa。沿程阻力计算公式：（6—2）式中—每米管长的沿程损失,Pa/m；L—管段长度,m。局部阻力计算公式：（6—3）式中—局部阻力系数；57 本科毕业论文正文—流体密度kg/m3；—流速m/s。教室室内允许噪声级为35~45dB，查得风管的主管风速为4~7m/s，支管风速为2~3m/s。本设计风管选用矩形钢板,第一层的风管计算如下：确定最不利管路,管段1-2-3-4-5-6-7-8-9-10-11图6.1管段1-2：风量660,初选风速5。查表选取断面尺寸为250mm×160mm,所以实际流速，根据流速查得：=1.51Pa/m，所以沿程阻力=1.51×1.56=2.36Pa。局部阻力：一个45°的固定金属百叶窗，=0.8，ξ=0.9；一个风量调节阀，ξ=0.25；一个矩形三通，=0.5,ξ=0.304,算出=18.46Pa。管段2-3：风量1420,初选风速5。查表选取断面尺寸为320mm×250mm,所以实际流速，根据流速查得：=0.96Pa/m，所以沿程阻力=0.96×2.5=2.4Pa。局部阻力：一个矩形三通，=0.5,ξ=0.304,算出=7.98Pa。管段3-4：风量1575,初选风速5.5。查表选取断面尺寸为320mm×250mm,所以实际流速，根据流速查得：=1.3Pa/m，所以沿程阻力=1.3×5.1=6.63Pa。57 本科毕业论文正文局部阻力：一个渐缩管ξ=0.1,=1.75Pa。管段4-5：风量2995,初选风速5.5。查表选取断面尺寸为630mm×250mm,所以实际流速，根据流速查得：=0.93Pa/m，所以沿程阻力=0.93×1.6=1.5Pa。局部阻力：两个90°矩形断面送出三通，=0.5,=0.5，ξ=0.052；一个矩形送出三通，ξ=0.21，算出=5.2Pa。管段5-6：风量3150,初选风速5.5。查表选取断面尺寸为630mm×250mm,所以实际流速，根据流速查得：=1.03Pa/m，所以沿程阻力=1.03×4.6=4.7Pa。局部阻力：一个90°矩形断面送出三通，=0.5,=0.2，ξ=0.03；算出=0.6Pa。管段6-7：风量3230,初选风速5.5。查表选取断面尺寸为630mm×250mm,所以实际流速，根据流速查得：=1.08Pa/m，所以沿程阻力=1.08×4.5=4.9Pa。局部阻力：一个90°矩形断面送出三通，=1,=0.1，ξ=0.68；算出=13.7Pa。管段7-8：风量3870,初选风速5.5。查表选取断面尺寸为630mm×320mm,所以实际流速，根据流速查得：=0.76Pa/m，所以沿程阻力=0.76×1.8=1.4Pa。局部阻力：一个90°矩形断面送出三通，=1,=0.1，ξ=0.68；算出=11.9Pa。57 本科毕业论文正文管段8-9：风量4140,初选风速6。查表选取断面尺寸为630mm×320mm,所以实际流速，根据流速查得：=0.88Pa/m，所以沿程阻力=0.88×3.2=2.8Pa。局部阻力：一个90°矩形断面送出三通，=1,=0.1，ξ=0.68；算出=13.7Pa。管段9-10：风量4410,初选风速6。查表选取断面尺寸为630mm×320mm,所以实际流速，根据流速查得：=0.88Pa/m，所以沿程阻力=0.88×7.9=6.9Pa。局部阻力：一个90°矩形断面送出三通，=0.5,=0.5，ξ=0.5；算出=10.1Pa。管段10-11：风量9385,初选风速6.5。查表选取断面尺寸为1000mm×400mm,所以实际流速，根据流速查得：=0.78Pa/m，所以沿程阻力=0.78×4.3=3.4Pa。局部阻力：消声器阻力50Pa，所以=50Pa。支管管段12-2：风量760,初选风速5。查表选取断面尺寸为250mm×200mm,所以实际流速，根据流速查得：=1.13Pa/m，所以沿程阻力=1.13×1.56=1.77Pa。局部阻力：一个45°的固定金属百叶窗，=0.8，ξ=0.9；一个风量调节阀，ξ=0.25；一个矩形三通，=0.5,ξ=0.304；算出=15.4Pa。阻力平衡的计算：管段1-2的总阻力为=2.36+18.46=20.82Pa管段12-2的总阻力为=1.77+15.4=17.17Pa57 本科毕业论文正文由于阻力不平衡，所以通过加风量调节阀进行调节。其他楼层支管的计算和阻力平衡的校核同上例，这里不再详细列出。表6.1一层新风管水力计算表管段编号流量长度m流速m/s风管尺寸mm局部阻力系数局部阻力Pa比摩阻Pa/m沿程阻力Pa总阻力Pa1-26601.64.6250×1601.4518.461.512.3620.822-314202.54.9320×2500.3047.980.962.4010.383-415755.15.4320×2500.11.751.36.638.384-529951.65.3630×2500.315.200.931.496.695-631504.65.6630×2500.030.601.034.745.346-732304.55.8630×2500.6813.701.084.8618.567-838701.85.4630×2500.6811.900.761.3713.278-941403.25.8630×2500.6813.700.882.8216.52续表9-1044107.95.8630×2500.510.100.886.9517.0510-1193854.36.61000×4000.550.000.783.3553.3512-27601.64.2250×2001.4515.401.131.7617.1613-31550.23.1120×1200.683.921.340.274.1914-46601.64.6250×1601.4518.461.512.3620.8215-47601.64.2250×2001.4515.401.131.7617.1616-51550.23.1120×1200.683.921.340.274.1917-6802.71.6120×1201.452.230.41.083.3118-76401.42.3320×2500.682.160.270.382.5419-82702.31.9250×1600.91.950.310.712.6620-92702.31.9250×1600.91.950.310.712.6623-1049702.55.9630×3200.510.100.882.2012.3021-232683.51.8250×1600.91.750.311.092.8322-232681.11.8250×1600.91.750.310.342.0924-2344306.55.8630×3200.510.100.885.7215.8225-24801.31.6120×1201.452.230.40.522.7526-2443501.85.5630×2500.510.100.881.5811.6827-264801.32.7250×2001.456.340.50.656.9929-2631303.85.6630×2500.030.601.033.914.5128-267401.32.7250×2001.456.340.50.656.9930-291200.23.1120×1200.683.921.340.274.1931-2930104.05.3630×2500.315.200.933.728.9232-318201.32.6250×2001.455.880.60.786.6633-317401.32.6250×2001.455.880.50.656.5334-3114504.05.3320×2500.11.751.35.206.9557 本科毕业论文正文35-341200.23.0120×1200.683.671.320.263.9436-3413303.74.9320×2500.3044.380.953.527.8937-368601.34.7250×1601.4519.221.511.9621.1838-364801.34.2250×1601.4515.351.121.4616.80表6.2二层新风管水力计算表管段编号流量长度m流速m/s风管尺寸mm局部阻力系数局部阻力Pa比摩阻Pa/m沿程阻力Pa总阻力Pa1-28601.34.6250×2001.4518.461.512.3620.822-313403.74.9320×2500.3047.980.963.5511.533-414781.75.4320×2500.11.751.32.213.964-518782.35.3320×2500.315.200.932.147.345-626182.35.6630×2500.030.601.032.372.976-730181.75.8630×2500.6813.701.081.8415.547-831551.75.4630×2500.6811.900.761.2913.198-935552.35.8630×2500.6813.700.882.0215.729-1042952.35.8630×2500.510.100.882.0212.12续表10-1146955.55.8630×3200.510.100.884.8414.9411-1250302.55.8630×3200.510.100.882.2012.3012-1383904.46.61000×4000.550.000.783.4353.4314-24801.34.2250×1601.4515.401.131.4716.8715-31380.23.1120×1200.683.921.340.274.1916-44001.34.6250×1601.4518.461.512.3620.8217-57401.34.2250×1601.4515.401.131.4716.8718-64001.34.6250×1601.4518.461.512.3620.8219-71380.21.6120×1201.452.230.40.082.3120-84001.32.3250×1600.682.160.270.352.5121-97401.32.3250×1600.682.160.270.352.5122-104001.32.3250×1600.682.160.270.352.5123-241683.01.9250×1600.91.950.310.932.8824-251680.21.9250×1600.91.950.310.062.0124-113351.41.9250×1600.91.950.310.432.3826-1233606.55.8630×2500.510.100.885.7215.8227-26900.23.1120×1200.683.921.340.274.1936-3732703.15.8630×2500.510.100.882.7312.8337-282601.32.3320×2500.682.160.270.352.5128-2930102.95.8630×2500.6813.700.882.5516.2529-3025606.05.4500×2500.6811.900.764.5616.4629-3112807.55.6320×2500.030.601.037.738.3328-3212800.85.6320×2500.030.601.030.821.4233-324502.21.9250×2000.91.950.310.682.6335-322250.21.9250×1600.91.950.310.062.0157 本科毕业论文正文表6.3三层新风管水力计算表管段编号流量长度m流速m/s风管尺寸mm局部阻力系数局部阻力Pa比摩阻Pa/m沿程阻力Pa总阻力Pa1-28601.34.6250×2001.4518.461.512.3620.822-313404.04.9320×2500.3047.980.963.8411.823-414524.05.4320×2500.11.751.35.206.954-530124.05.4320×2500.3047.980.963.8411.825-631234.05.4320×2500.11.751.35.206.956-746834.05.8630×3200.6813.700.883.5217.227-847954.25.8630×3200.6813.700.883.7017.408-957152.56.6800×3200.6850.000.781.9551.959-1072252.26.6800×4000.6850.000.781.7251.7210-1173602.26.6800×4000.150.000.781.7251.7212-24801.34.2250×1601.4515.401.131.4716.8713-31120.23.1120×1200.683.921.340.274.1914-47401.34.6250×1601.4518.461.512.3620.82续表15-48201.34.2250×1601.4515.401.131.4716.8716-51120.23.1120×1200.683.921.340.274.1917-67401.31.9250×1600.91.950.310.402.3518-68201.31.9250×1600.91.950.310.402.3519-71120.23.1120×1200.683.921.340.274.1920-84401.34.2250×1601.4515.351.121.4616.8021-84801.31.9250×1600.91.950.310.402.3521-101350.23.1120×1200.683.921.340.274.1922-232601.35.4250×1600.11.751.31.693.4424-2311601.45.4250×2000.11.751.31.823.5723-2514203.05.8320×2000.6813.700.882.6416.3426-25900.23.1120×1200.683.921.340.274.1925-915105.15.8320×2000.6813.700.884.4918.19表6.4四层新风管水力计算表管段编号流量长度m流速m/s风管尺寸mm局部阻力系数局部阻力Pa比摩阻Pa/m沿程阻力Pa总阻力Pa1-28601.34.6250×2001.4518.461.512.3620.822-313404.04.9320×2500.3047.980.963.8411.823-414522.55.4320×2500.11.751.33.255.004-530123.05.3320×2500.315.200.932.797.995-631232.55.6320×2500.030.601.032.583.186-732304.55.8320×2500.6813.701.084.8618.5657 本科毕业论文正文7-838701.85.4630×2500.6811.900.761.3713.278-941403.25.8630×3200.6813.700.882.8216.529-1048367.95.8630×3200.510.100.886.9517.0510-1149814.36.6630×4000.550.000.783.3553.3512-27601.64.2250×1601.4515.401.131.7617.1613-31550.23.1120×1200.683.921.340.274.1914-46601.64.6250×1601.4518.461.512.3620.8215-47601.64.2250×2001.4515.401.131.7617.1616-51550.23.1120×1200.683.921.340.274.1917-6802.71.6120×1201.452.230.41.083.3118-66401.42.3320×2500.682.160.270.382.5419-72702.31.9320×2500.91.950.310.712.6620-82702.31.9250×1600.91.950.310.712.6621-86002.55.9250×2500.510.100.882.2012.3021-102683.51.8250×1600.91.750.311.092.8322-232681.11.8250×1600.91.750.310.342.0924-233206.55.8630×2500.510.100.885.7215.8223-253600.21.6120×1201.452.230.40.082.3126-253501.85.5250×1600.510.100.881.5811.68续表25-94801.32.7250×2001.456.340.50.656.9927-265603.85.6250×1600.030.601.033.914.5128-277403.62.7250×2001.456.340.51.808.14表6.5五层新风管水力计算表管段编号流量长度m流速m/s风管尺寸mm局部阻力系数局部阻力Pa比摩阻Pa/m沿程阻力Pa总阻力Pa1-28602.34.6250×2001.4518.461.512.3620.822-313404.04.9320×2500.3047.980.963.8411.823-414523.55.4320×2500.11.751.34.556.304-523204.05.4320×2500.3047.980.963.8411.825-631055.55.4320×2500.11.751.37.158.906-734304.05.8630×2500.6813.700.883.5217.227-841104.25.8630×2500.6813.700.883.7017.408-945152.56.4630×2500.6850.000.781.9551.959-1046602.26.6630×3200.6850.000.781.7251.7210-1148052.26.6630×4000.150.000.781.7251.7212-24801.34.2250×2001.4515.401.131.4716.8713-31120.23.1120×1200.683.921.340.274.1914-47401.34.6250×1601.4518.461.532.3621.5215-48203.74.2250×2001.4515.401.134.1819.5816-51120.23.1120×1200.683.921.340.274.1917-67402.31.9250×1600.91.950.310.712.6657 本科毕业论文正文18-68201.31.9250×1600.91.950.310.402.3519-71120.23.1120×1200.683.921.340.274.1920-84401.34.2250×1601.4515.351.121.4616.8021-84803.41.9250×1600.91.950.311.053.0021-101350.23.1120×1200.683.921.340.274.1922-232605.55.4320×2500.11.751.37.158.907空调水系统设计7.1供回水管设计本设计水系统采用同程式，水管的阻力计算公式同于风管系统，水管管径d由下式确定：（7—1）式中d—水管管径，mm；L—管段流量，；v—管段水流速度，m/s。管径与流速的关系：，，，，，，，。将第一层水管进行管段编号，选取最不利管路1-2-3-4-5-6-7-8-1657 本科毕业论文正文图7.1管段1-2：流量L=0.8,假定流速v=1.0m/s，则算的=17mm,选用DN20mm的水管，算的实际流速V=0.71m/s，查得比摩阻R=0.471。局部阻力：两个90°弯头ξ=1.5×2，一个渐缩管ξ=0.1，=0.78。沿程阻力5.8×0.471=2.73。管段2-3：流量L=2.55,假定流速v=1.0m/s，则算的=30mm,选用DN32mm的水管，算的实际流速V=0.88m/s，查得比摩阻R=0.303。局部阻力：一个四通ξ=0.4，一个渐缩管ξ=0.1，=0.16。沿程阻力4.7×0.303=1.42。管段3-4：流量L=4.15,假定流速v=1.0m/s，则算的=38mm,选用DN40mm的水管，算的实际流速V=0.92m/s，查得比摩阻R=0.313。局部阻力：一个四通ξ=0.4，=0.17。沿程阻力3.1×0.313=0.97。管段4-5：流量L=5.75,假定流速v=1.5m/s，则算的=36mm,选用DN40mm的水管，算的实际流速V=1.27m/s，查得比摩阻R=0.695。局部阻力：一个四通ξ=0.4，=0.32。沿程阻力4.8×0.695=3.34。57 本科毕业论文正文管段5-6：流量L=7.35,假定流速v=2m/s，则算的=36mm,选用DN40mm的水管，算的实际流速V=1.62m/s，查得比摩阻R=0.996。局部阻力：一个四通ξ=0.4，=0.53。沿程阻力4.1×0.996=4.08。管段6-7：流量L=8.5,假定流速v=2m/s，则算的=37mm,选用DN40mm的水管，算的实际流速V=1.88m/s，查得比摩阻R=1.238。局部阻力：一个三通ξ=1.5，=2.65。沿程阻力8.9×1.238=11.02。管段9-10：流量L=0.8,假定流速v=1.0m/s，则算的=17mm,选用DN20mm的水管，算的实际流速V=0.71m/s，查得比摩阻R=0.471。局部阻力：一个三通ξ=1.5，=0.38。沿程阻力3.6×0.471=1.70。管段10-11：流量L=1.88,假定流速v=1.0m/s，则算的=17mm,选用DN32mm的水管，算的实际流速V=0.65m/s，查得比摩阻R=0.329。局部阻力：一个三通ξ=1.5，渐缩管ξ=0.1，=0.32。沿程阻力3.7×0.329=1.22。管段11-12：流量L=3.76,假定流速v=1.0m/s，则算的=36mm,选用DN40mm的水管，算的实际流速V=0.83m/s，查得比摩阻R=0.412。局部阻力：一个四通ξ=0.4，=0.14。沿程阻力3.9×0.412=1.61。管段12-13：流量L=5.64,假定流速v=1.5m/s，则算的=37mm,选用DN40mm的水管，算的实际流速V=1.25m/s，查得比摩阻R=0.325。局部阻力：一个四通ξ=0.4，=0.31。沿程阻力3.4×0.325=1.11。57 本科毕业论文正文管段13-14：流量L=7.52,假定流速v=2.0m/s，则算的=38mm,选用DN40mm的水管，算的实际流速V=1.66m/s，查得比摩阻R=0.867。局部阻力：一个四通ξ=0.4，=0.55。沿程阻力1.8×0.867=1.56。管段14-15：流量L=8.13,假定流速v=2.0m/s，则算的=38mm,选用DN40mm的水管，算的实际流速V=1.80m/s，查得比摩阻R=1.103。局部阻力：一个三通ξ=1.5，=2.42。沿程阻力4×1.103=4.41。管段15-7：流量L=8.93,假定流速v=2.0m/s，则算的=39mm,选用DN40mm的水管，算的实际流速V=1.97m/s，查得比摩阻R=1.417。局部阻力：一个三通ξ=1.5，一个90°弯头ξ=1.5，=5.85。沿程阻力14.8×1.417=20.97。管段7-8：流量L=18.23,假定流速v=2.0m/s，则算的=39mm,选用DN65mm的水管，算的实际流速V=1.53m/s，查得比摩阻R=0.582。局部阻力：一个三通ξ=1.5，=1.75。沿程阻力5.5×0.582=3.2。管段8-16：流量L=32.18,假定流速v=2.0m/s，则算的=39mm,选用DN80mm的水管，算的实际流速V=1.53m/s，查得比摩阻R=0.596。局部阻力：一个三通ξ=1.5，=2.37。沿程阻力1.1×0.596=0.66。一层管段1-7的总阻力为48.21KPa，管段9-7的总阻力为62.55KPa。阻力不平衡，通过加水量调节阀进行调节。57 本科毕业论文正文其他楼层支管的计算和阻力平衡的校核同上例，这里不再详细列出。表7.1一层水管水力计算管段编号流量长度m流速m/s管径mm局部阻力系数局部阻力kPa比摩阻kPa/m沿程阻力kPa总阻力kPa1-20.85.80.71203.10.780.4712.733.512-32.554.70.88320.50.190.3031.421.623-44.153.10.92400.40.170.3130.971.144-55.754.81.27400.40.320.6953.343.665-67.354.11.62400.40.530.9964.084.616-78.58.91.88401.52.651.23811.0213.679-100.83.60.71201.50.380.4711.702.0710-111.883.70.65321.60.340.3291.221.5511-123.763.90.83400.40.140.4121.611.7412-135.643.41.25400.40.310.3251.111.4213-147.521.81.66400.40.550.8671.562.1114-158.1341.80401.52.421.1034.416.837-158.9314.81.974035.851.41720.9726.82续表7-818.235.51.53651.51.750.5823.204.958-1632.181.11.78801.52.370.5960.663.03表7.2二层水管水力计算管段编号流量长度m流速m/s管径mm局部阻力系数局部阻力kPa比摩阻kPa/m沿程阻力kPa总阻力kPa1-20.85.80.71203.10.780.4712.733.512-32.554.70.88320.50.190.3031.421.623-44.153.10.92400.40.170.3130.971.144-55.754.81.27400.40.320.6953.343.665-67.354.11.62400.40.530.9964.084.616-78.58.91.88401.52.651.23811.0213.679-101.394.81.23201.51.131.3346.407.5410-112.784.50.96321.50.690.5572.513.2011-124.17141.443233.111.11615.6218.7412-138.348.41.84401.52.551.32611.1413.6913-149.291.91.31501.51.300.8971.703.0014-710.246.91.45501.51.571.2058.319.897-818.745.51.57651.51.850.7844.316.168-1532.721.11.81801.52.450.8450.933.38表7.3三层水管水力计算57 本科毕业论文正文管段编号流量长度m流速m/s管径mm局部阻力系数局部阻力kPa比摩阻kPa/m沿程阻力kPa总阻力kPa1-20.85.80.71203.10.780.4712.733.512-32.554.70.88320.50.190.3031.421.623-44.153.10.92400.40.170.3130.971.144-55.754.81.27400.40.320.6953.343.665-67.354.11.62400.40.530.9964.084.616-78.58.91.88401.52.651.23811.0213.677-89.453.21.34501.51.340.8752.804.148-910.533.11.49501.51.660.6792.103.779-1011.483.61.62501.51.981.2754.596.5713-140.953.40.84201.50.530.3741.271.8014-151.913.71.082531.730.4966.808.5315-162.852.10.98321.50.730.5321.121.8416-174.751.81.05401.50.830.5380.971.8017-105.771.26401.51.190.6744.725.9111-1017.185.51.44651.51.551.3757.569.1111-1229.761.11.64801.52.031.4621.613.64表7.4四层水管水力计算管段编号流量长度m流速m/s管径mm局部阻力系数局部阻力kPa比摩阻kPa/m沿程阻力kPa总阻力kPa1-20.85.80.71203.10.780.4712.733.512-32.553.90.88320.50.190.3031.181.383-43.775.40.83400.40.140.3131.691.834-553.91.11400.40.240.6952.712.955-66.594.11.46400.40.420.9964.084.516-77.748.91.71401.52.201.23811.0213.217-88.693.21.23501.51.130.8752.803.938-99.773.11.38501.51.430.6792.103.549-1010.723.61.52501.51.731.2754.596.3213-140.82.30.71201.50.380.3430.791.1614-151.882.50.65321.50.320.6571.641.9615-102.688.40.93321.50.640.9538.018.6510-1113.45.51.12651.50.941.2646.957.9011-1224.441.11.35801.51.371.351.492.86表7.5五层水管水力计算管段编号流量长度m流速m/s管径mm局部阻力系数局部阻力kPa比摩阻kPa/m沿程阻力kPa总阻力kPa1-20.9540.84203.11.090.4711.882.982-31.93.20.66321.50.320.3030.971.293-42.853.30.98321.50.730.3131.031.764-53.651.40.81401.50.490.6950.971.4657 本科毕业论文正文5-64.64.11.02401.50.780.9964.084.866-75.42.41.19401.51.071.2382.974.047-86.23.21.37401.51.411.1093.554.968-973.10.99501.50.741.0043.113.859-107.953.61.12501.50.951.0253.694.6410-119.74.31.37500.40.381.1124.785.1611-1211.099.91.57501.51.851.21612.0413.8812-1322.131.11.85651.52.571.3251.464.03因为本设计中水系统采用同程式，且供水管和回水管的管线布置基本一致，所以省略回水管的水力计算。7.2冷凝水管的设计风机盘管机组在运行时产生的冷凝水，必须及时排走。排放冷凝水管道的设计，应注意以下事项：（1）沿水流方向，水平管道应保持不小于百分之一的坡度，且不允许有积水部位。（2）在新风机组末端应设置冷凝水回水弯，防止当机组内产生负压时，发生冷凝水倒流溢出的问题。（3）冷凝水管道宜采用聚氯乙烯塑料管，不宜采用焊接钢管。冷凝水管的公称直径D（mm）,一般情况下可以按照机组的冷负荷Q（kW），按照下列数据近似选定冷凝水管的公称直径：Q≤7kW，DN=20mm；Q=7.1-17.6kW，DN=25mm；Q=17.7-100kW，DN=32mm；Q=101-176kW，DN=40mm；Q=177-598kW，DN=50mm；Q=599-1055kW，DN=80mm；Q=1056-1512kW，DN=100mm；Q=1513-12462kW，DN=125mm；Q≥12462kW，DN=150mm。57 本科毕业论文正文8机房布置和选择8.1冷水机组的选择冷水机组的制冷量要满足新风机组制冷量和风机盘管制冷量的和，算出Q=894.8kw，选用螺杆式冷水机组，型号为W-LSLGF1100IV，名义工况制冷量为1140KW。冷冻水：（1）进出水管径：DN200mm；（2）标准水流量：200m³/h；（3）阻力损失：60KPa。冷却水：（1）进出水管径：DN200mm；（2）标准水流量：200m³/h；（3）阻力损失：60KPa。机组尺寸：长×宽×高，3654mm×1900mm×1950mm。57 本科毕业论文正文8.2冷却水系统设计根据机组冷却水量，选择冷却塔型号DBNL3-250，该冷却塔冷却水量为250m³/h，高3835mm，最大直径4342mm，进水压力30.1KPa，喷雾压力50KPa。8.3冷却水泵型号的选择根据制冷机的冷凝负荷可确定冷却水泵的流量。冷却水泵的扬程：（8—1）式中—最不利环路上沿程阻力损失，kPa；—最不利环路上局部阻力损失，kPa；—冷凝器的冷却水侧的阻力，kPa；—冷却塔中水的提升高度（从底部水池到喷淋器的高差）×9.8kPa；—冷却塔喷嘴的喷雾压力，这里取50KPa。所有冷却管段长为50m，冷水机组冷却水流量L=200m3/h，管径DN200mm，算得速度v=1.77m/s。局部阻力：两个截止阀ξ=14，14个90°弯管ξ=14，=43.78kPa。查得比摩阻R=0.151kPa/m，所以沿程阻力=0.151×50=7.55kPa，总阻力=+=43.78+7.55=51.33kPa。水泵扬程=1.1（51.33+60+3×9.8+50）=209.8kPa=21.4mH2O根据水泵扬程和流量选用水泵两台，一用一备，型号SLW200-400A，流量220m3/h，扬程40m。8.4冷冻水泵型号的选择冷冻水管路阻力损失计算方法为：（8—2）式中—最不利环路上沿程阻力损失，kPa；—最不利环路上局部阻力损失，kPa；57 本科毕业论文正文—设备的阻力损失，kPa。机房内冷冻管段长为28m,冷水机组冷冻水流量L=142m3/h，管径为DN200mm，算得速度v=1.26m/s。局部阻力有10个90°弯管ξ=10，两个截止阀ξ=7，=13.4kPa，查得比摩阻R=0.082kPa/m，=0.082×28=2.3kPa。=+=15.7kPa。分集水器至最不利端头的管段长21m，流量L=22.13m3/h，管径为DN65mm，速度v=1.85m/s，局部阻力有3个90°弯管ξ=3，=5.15kPa，查得比摩阻R=1.325kPa/m，=1.325×21=27.83kPa。=+=32.97kPa。=（32.97+52.91）×2+37+60=268.7KPa=27mH2O根据水泵扬程和流量选用水泵两台，一用一备，型号SLW135-160，流量180m3/h，扬程32m。9消声和防震的设计空气在沿程输送的过程中有自然衰减的作用存在，只有自然衰减不能满足消声要求时才考虑装置消声器。噪声与气流速度有密切关系，对于一般要求的建筑，通常限制空气在风管内的流速，就不必计算气流噪声的影响。本设计风管的主管风速为4-7m/s，支管风速2-3m/s。引起人员密度大，新风需求多，为了避免风管尺寸过大，所以每层设置一个新风机组。同时布置管路时尽可能避免管道急剧转弯产生涡流引起再生噪声，风管上的调节阀不仅会增加阻力，也会增加噪声，尽可能少装。57 本科毕业论文正文空调系统的隔振设计包括设备隔振和管道隔振。设备隔振包括冷水机组、空调机组、水泵以及其他可能产生较大振动的设备。管道隔振主要是设备的振动通过管道进行传递。必须对所有的空调、制冷设备都做有效的隔振处理，隔振台座通常采用钢筋混凝土预制件或型钢架，其尺寸应满足设备安装的要求。隔振要求较小的设备吊装时，若有必要，可采用橡胶隔振吊钩。一般管道隔振是通过设备与管道之间的软连接实现的，软管可以起到温度、压力和安装的补偿作用。10管道保温及防腐的设计所有风管均需保温，风管保温采用专用带防潮铝箔贴面超细玻纤毡，也可选用符合防火规范要求的橡塑保温材料。冷冻水和冷凝水管道均需保温，保温采用橡塑保温材料。管道保温施工前,应将其表面污垢、油渍等清除干净，且应彻底除锈，清洗洁净，然后涂防锈漆两遍，再做保温层，非保温管道及管道支（吊）架同样除油、除垢、除锈清洗，涂两遍防锈漆,其外再按规定涂不同颜色面漆两遍。57 本科毕业论文正文57本科毕业论文小结小结经过两个多月的不懈努力，终于完成了本次毕业设计。在此本人巩固了大学四年来所学的知识，对空调系统有了一个更加完整的认识和了解，并系统的掌握了设计的过程和方法。但是因为自身的思维和知识水平有限，导致设计中并没有什么创新之处。虽然成果不是很令人满意，但终究是自己动手一步一步做出来的，这点使我在遗憾之余感到些许欣慰。设计中的每一步，我都做了认真的考虑，在这样点滴考虑与思量过程中，我摸索到空调设计要点，更清晰了解整个设计过程。相信本人在以后的工作过程中，理论结合实践，经过不懈的努力，在本专业方面会有更大的进步。本次毕业设计的完成，其中有自己本身的艰辛付出，也离不开指导老师和同学的帮助。在此感谢老师和同学们对我的帮助和指导。 57 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