毕业设计（论文）-扬州某综合建筑空调系统设计.doc

南 京 工 程 学 院毕业设计说明书(论文)作 者： 学 号： 系 部： 康尼学院 专 业： 建筑环境与设备工程 题 目： 扬州某综合建筑空调系统设计 指导者： 工程师 (姓 名) (专业技术职务)评阅者： (姓 名) (专业技术职务) 2015 年5 月 南 京毕业设计说明书（论文）中文摘要本工程设计对象为扬州某综合楼，此综合楼主要有商场、会议室和办公室。该大楼共有七层，从地上一层到地上七层，建筑高度24.2m，总建筑面积为3710m2，总空调面积为3086m2，一层和二层层高5.2米，其余各层层高均4米, 工程位于扬州市，东经11927，北纬3248。本工程空调设计的内容包括本大厦的中央空调系统的设计及通风设计。本中央空调系统设计能够实现夏季供冷和冬季供热，并能满足人体的舒适性要求。整座大楼的一二层商场采用全空气系统；三到七层办公室采用半集中控制的空气-水系统，风系统设计为风机盘管加新风系统，可以保持室内空气舒适新鲜。机房将布置于屋顶。关键词 综合楼 水系统 全空气系统 风机盘管加新风系统全套图纸加扣3012250582 毕业设计说明书（论文）外文摘要Title Design of An Air-Conditioning System of An Comprehensive Building in YangZhou Abstract：The design object of this project is a comprehensive building of Yangzhou, which mainly has shopping malls, conference rooms and offices. The building has a total of seven layers, from the ground floor to the ground seven layer, the height of the building is24.2m high, with a total construction area of 3710m2 and total air conditioning area for 3086m2, layer and the second layer of 5.2 meters high, other layers high are 4 meters, The project is located in Yangzhou City, east longitude 119 degrees 27 minutes north latitude, 32 degrees 48. The air conditioning design of this project includes the design and ventilation of the central air-conditioning system of the building. The central air-conditioning system design can realize the summer cooling and winter heating, and can meet the human comfort requirements. The whole building is a two-story shopping malls adopts all air system; three to seven storeys office by semi centralized control of air - water system, air system design for fan coil unit plus fresh air system can keep the indoor air comfort fresh. Refrigeration room will be arranged on the roof.Keywords Comprehensive building All air system Fan coil unit plus outdoor air system南京工程学院毕业设计说明书（论文）目录第一章 设计任务31-1设计目的31-2主要设计内容31-3设计文件41-4设计参数41-4-1工程概况41-4-2室外设计参数51-4-3室内设计参数51-4-4围护结构参数6第二章 负荷计算62.1冷负荷计算62-1-1围护结构逐时传热形成冷负荷计算72-1-2室内热源散热引起的冷负荷112-1-3新风冷负荷152-1-4各项逐时冷负荷汇总162-1-5冷负荷计算小结172-2热负荷计算182-2-1围护结构的耗热量182-2-2门窗缝隙渗入冷空气的耗热量182-2-3新风热负荷192-2-4各项热负荷汇总202-2-5热负荷计算小结202-3湿负荷计算20第三章 空调方式213-1空调系统的分类213-1-1全空气系统方案的确定213-1-2风机盘管加新风方式的确定213-2空气处理过程设计223-2-1 全空气系统设计计算223-2-2风机盘管加新风系统23第四章 空调风系统设计294-1风道设计294-1-1风管类型294-1-2风管布置294-1-3风管规格确定294-2风口及气流组织设计314-2-1送风口方式314-2-2散流器设计324-3风管阻力计算344-3-1计算方法344-3-2风管水力计算举例34第五章 空调水系统设计385-1空调水系统的选取385-2水系统管径确定385-2-1冷却水供、回水管395-2-2冷凝水管425-3水管水力计算435-3-1沿程阻力计算435-3-2局部阻力计算435-3-3总阻力计算445-3-4水管阻力计算汇总465-3-5供回水立管计算475-4冷冻水泵505-5附件515-6膨胀水箱51第六章 冷热源方案536-1冷热源设备设计536-1-1设备容量的确定536-2机组布置54第七章 管道保温与系统消声、减震设计547-1材料的选择547-2厚度的确定557-3系统消声及减震设计557-3-1系统的减震设计56第八章 防火防排烟57结论58致谢59附 录60附表一：标准层冷负荷计算60附表二：顶层冷负荷计算表99附表三：新风管道水力计算114附表四：新风加风机盘管散流器尺寸选择115附表四：顶层水系统水力计算116附表五：系统立管水力计算117第一章 设计任务1-1设计目的1、 了解设计流程2、 理论知识的运用3、 学习暖通软件的操作流程4、 一次系统性的学习1-2主要设计内容空调冷热负荷的确定确定空调系统的形式，气流组织形式空气处理设备，末端装置的选择空调风系统的设计与绘图；空调水系统的设计与绘图；机房的设计(包括新风机房，制冷机房的设计）1-3设计文件毕设开题报告毕业设计说明书论文图纸总说明书风系统平面图水系统平面图风系统轴测图水系统轴测图其他1-4设计参数1-4-1工程概况本设计的建筑是一栋欧式综合建筑楼，该大楼坐落在扬州市，共有七层，从地上一层到地上七层。建筑高度30.4m。总建筑面积为3710m2，总空调面积为3086m2 。一层和二层层高5.2米，其余各层层高均4米, 该建筑属型结构，外墙为轻集料混凝土小型空心砌块墙。本设计为该大楼一至七层房间的空调系统设计。1-4-2室外设计参数1-4-3室内设计参数表1-1 室内温、湿度设计参数综合考虑，室内温度设定为夏季室内干球温度26，室内相对湿度60%；冬季室内温度为20。1-4-4围护结构参数第二章 负荷计算2.1冷负荷计算该大楼空调运行时间为上班时间，则负荷时本设计取8:0024:00时本设计采用冷负荷系数法的计算方法。2-1-1围护结构逐时传热形成冷负荷计算2-1-1-1外墙和屋顶瞬变传热引起的冷负荷表2-1 一层商场南外墙逐时冷负荷时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00K1.571.571.571.571.571.571.571.571.571.571.571.571.571.571.571.571.57tn2626262626262626262626262626262626F170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2170.2td11111111111111111tl34.634.233.933.533.232.932.832.933.133.433.934.434.935.335.73636.1LQ2565.252458.372378.202271.322191.152110.992084.272110.992164.432244.602378.202511.812645.422752.302859.192939.352966.08 注：其余房间计算见附录2-1-1-2外玻璃窗瞬变传热引起的冷负荷表2-2 一层商场外窗瞬时传热冷负荷时间tltdtnkKF南F东F北F西LQ南LQ东LQ北LQ西8:0026.90 3261.23.637.83.7834.023.78636.85 63.69 573.17 63.69 9:0027.90 3261.23.637.83.7834.023.78800.15 80.02 720.14 80.02 10:0029.00 3261.23.637.83.7834.023.78979.78 97.98 881.80 97.98 11:0029.90 3261.23.637.83.7834.023.781126.74 112.67 1014.07 112.67 12:0030.80 3261.23.637.83.7834.023.781273.71 127.37 1146.34 127.37 13:0031.50 3261.23.637.83.7834.023.781388.02 138.80 1249.21 138.80 14:0031.90 3261.23.637.83.7834.023.781453.33 145.33 1308.00 145.33 15:0032.80 3261.23.637.83.7834.023.781600.30 160.03 1440.27 160.03 16:0032.20 3261.23.637.83.7834.023.781502.32 150.23 1352.09 150.23 17:0032.00 3261.23.637.83.7834.023.781469.66 146.97 1322.70 146.97 18:0031.60 3261.23.637.83.7834.023.781404.35 140.43 1263.91 140.43 19:0030.80 3261.23.637.83.7834.023.781273.71 127.37 1146.34 127.37 20:0029.90 3261.23.637.83.7834.023.781126.74 112.67 1014.07 112.67 21:0029.10 3261.23.637.83.7834.023.78996.11 99.61 896.50 99.61 22:0028.40 3261.23.637.83.7834.023.78881.80 88.18 793.62 88.18 23:0028.40 3261.23.637.83.7834.023.78881.80 88.18 793.62 88.18 0:0027.80 3261.23.637.83.7834.023.78783.82 78.38 705.44 78.38 注：其余房间计算见附录2-1-1-3透过玻璃窗的日射得热引起的冷负荷透过玻璃窗的日射得热引起的冷负荷，可按下式计算：表2-3 一层商场透过玻璃窗的日射得热引起的冷负荷时间CaCsCn南Djmax东Djmax北Djmax西Djmax南Clp东Clp北Clq西ClpF南F东F北F西LQ南LQ东LQ北LQ西8:000.750.780.52125561185560.260.820.540.1437.83.7834.023.78609.43 504.09 634.07 86.06 9:000.750.780.52125561185560.40.790.650.1737.83.7834.023.78937.59 485.65 763.23 104.51 10:000.750.780.52125561185560.580.590.750.1837.83.7834.023.781359.51 362.70 880.65 110.65 11:000.750.780.52125561185560.720.380.810.1937.83.7834.023.781687.66 233.60 951.10 116.80 12:000.750.780.52125561185560.840.240.830.237.83.7834.023.781968.94 147.54 974.59 122.95 13:000.750.780.52125561185560.80.240.830.3437.83.7834.023.781875.18 147.54 974.59 209.01 14:000.750.780.52125561185560.620.230.790.5637.83.7834.023.781453.27 141.39 927.62 344.26 15:000.750.780.52125561185560.450.210.710.7237.83.7834.023.781054.79 129.10 833.68 442.61 16:000.750.780.52125561185560.320.180.60.8337.83.7834.023.78750.07 110.65 704.52 510.24 17:000.750.780.52125561185560.240.150.610.7737.83.7834.023.78562.55 92.21 716.26 473.35 18:000.750.780.52125561185560.160.110.680.5337.83.7834.023.78375.04 67.62 798.46 325.81 19:000.750.780.52125561185560.10.080.170.1137.83.7834.023.78234.40 49.18 199.61 67.62 20:000.750.780.52125561185560.090.070.160.137.83.7834.023.78210.96 43.03 187.87 61.47 21:000.750.780.52125561185560.090.070.150.0937.83.7834.023.78210.96 43.03 176.13 55.33 22:000.750.780.52125561185560.080.060.140.0937.83.7834.023.78187.52 36.88 164.39 55.33 23:000.750.780.52125561185560.080.060.130.0837.83.7834.023.78187.52 36.88 152.65 49.18 0:000.750.780.52125561185560.070.060.120.0837.83.7834.023.78164.08 36.88 140.90 49.18 注：其余房间计算见附录2-1-1-4内围护结构温差传热冷负荷 表2-4 一层商场内围护结构温差传热冷负荷内围护结构冷负荷计算时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00K0.80.80.80.80.80.80.80.80.80.80.80.80.80.80.80.80.8tn2626262626262626262626262626262626F32.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.3432.34TO,M3535353535353535353535353535353535LQ232.85232.85232.85232.85232.85232.85232.85232.85232.85232.85232.85232.85232.85 2-1-2室内热源散热引起的冷负荷2-1-2-1设备散热形成的显热冷负荷 以下以一层商场为例，计算设备散热形成的冷负荷。表2-5一层商场设备散热冷负荷时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00qf1313131313131313131313131313131313F538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56538.56Qs7001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.287001.28Xt-T0.780.910.940.960.970.980.980.980.990.990.990.990.990.990.990.990.99Qt5461.006371.166581.206721.236791.246861.256861.256861.256931.276931.276931.276931.276931.276931.276931.276931.276931.27注：其余房间计算见附录2-1-2-2人体散热形成的冷负荷表2-6 一层商场人体显热散热引起的冷负荷时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00q15858585858585858585858585858585858n人数197197197197197197197197197197197197197197197197197Xt-T0.430.750.830.880.910.930.940.950.960.970.970.970.980.980.980.980.98群集系数0.890.890.890.890.890.890.890.890.890.890.890.890.890.890.890.890.89Qt总4372.737626.868440.398948.849253.929457.309558.999660.689762.379864.079864.079864.079965.769965.769965.769965.769965.76时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00q2123123123123123123123123123123123123123123123123123n人数197197197197197197197197197197197197197197197197197Xt-T0.430.750.830.880.910.930.940.950.960.970.970.970.980.980.980.980.98群集系数0.890.890.890.890.890.890.890.890.890.890.890.890.890.890.890.890.89LQ潜热21565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.5921565.59 注：其余房间计算见附录2-1-2-3照明散热形成的冷负荷 时间8:009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:000:00n10.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.7N200200200200200200200200200200200200200200200200200Xt-T0.430.750.830.880.910.930.940.950.960.970.970.970.980.980.980.980.98灯个数3636363636363636363636363636363636Qt总2600.6445365019.845322.245503.685624.645685.125745.65806.085866.565866.565866.565927.045927.045927.045927.045927.04注：其余房间计算见附录附表2-5。2-1-3新风冷负荷 新风冷负荷计算房间人数每人新风量新风量室外空气密度新风量室外空气的焓值室内焓值新风冷负荷nLGMhohRQco（人）m3/（h*人）m3/hkg/m3kg/skJ/kgkJ/kgw商场1972039401.21.31391.558.8542880.33会议室25369001.20.30091.558.859795.00办公室5251251.20.04291.558.851360.42 其中：室内、外焓值由焓湿图上查得。2-1-4各项逐时冷负荷汇总将各项冷负荷逐时相累加，以求的其最大冷负荷出现的时间。以下依然以一层商场为例，汇总各项逐时冷负荷。表2-10 一层商场各项逐时冷负荷汇总时间外墙负荷内围护负荷窗传热负荷窗日射负荷设备散热冷负荷照明散热冷负荷人体显热负荷人体潜热负荷总计8:004537.61232.851337.391833.655461.002600.644372.7321565.5941941.479:004379.30232.851680.322290.976371.164536.007626.8621565.5948683.0510:004235.72232.852057.532713.516581.205019.848440.3921565.5950846.6311:004098.63232.852366.162989.176721.235322.248948.8421565.5952244.7112:003997.56232.852674.793214.016791.245503.689253.9221565.5953233.6413:003924.83232.852914.833206.326861.255624.649457.3021565.5953787.6214:003902.91232.853052.002866.536861.255685.129558.9921565.5953725.2515:003931.85232.853360.632460.186861.255745.609660.6821565.5953818.6416:004003.93232.853154.882075.486931.275806.089762.3721565.5953532.4517:004097.88232.853086.291844.386931.275866.569864.0721565.5953488.8818:004235.61232.852949.131566.936931.275866.569864.0721565.5953211.9919:004394.56232.852674.79550.816931.275866.569864.0721565.5952080.4920:004567.72232.852366.16503.346931.275927.049965.7621565.5952059.7221:004733.16232.852091.82485.456931.275927.049965.7621565.5951932.9322:004884.40232.851851.78444.126931.275927.049965.7621565.5951802.8023:005027.98232.851851.78426.236931.275927.049965.7621565.5951928.490:005099.48232.851646.02391.056931.275927.049965.7621565.5951759.05注：其余房间计算见附录表2-11 总冷负荷时间一层总负荷二层总负荷三层总负荷四层总负荷五层总负荷六层总负荷七层总负荷总负荷8:0045495.3145495.3127259.2127259.2127259.2127259.2137071.80237099.269:0052119.9852119.9832209.9132209.9132209.9132209.9141262.36274341.9410:0054174.8954174.8933960.0633960.0633960.0633960.0642390.59286580.6111:0055469.3155469.3135146.7335146.7335146.7335146.7343231.75294757.3112:0056379.7556379.7536021.2536021.2536021.2536021.2544106.27300950.7913:0056876.5956876.5936503.2236503.2236503.2236503.2244864.65304630.7414:0056794.1956794.1936485.4836485.4836485.4836485.4845537.93305068.2315:0056908.3456908.3436660.8536660.8536660.8536660.8546680.75307140.8516:0056676.2056676.2036411.2636411.2636411.2636411.2647605.90306603.3517:0056703.0156703.0136492.6736492.6736492.6736492.6748931.16308307.8618:0056532.8956532.8936477.1536477.1536477.1536477.1550159.49309133.8819:0055521.4055521.4035516.6435516.6435516.6435516.6450373.73303483.1020:0055633.1555633.1535445.7235445.7235445.7235445.7251201.14304250.3021:0055631.3855631.3835291.0435291.0435291.0435291.0451599.29304026.2122:0055613.7355613.7335120.1235120.1235120.1235120.1251635.67303343.6323:0055848.0955848.0935221.1935221.1935221.1935221.1951667.64304248.580:0055733.2755733.2735000.4435000.4435000.4435000.4451101.37302569.662-1-5冷负荷计算小结本设计综合楼的最大冷负荷出现在18：00，Qmax=309.13 kW。此次设计的综合楼空调面积为3085.92，则单位面积的负荷值为Q=（309.131000）3085.92=100.18W/一般综合楼的单位面积负荷指标为97.2111.6W/，因此本次设计的负荷计算结果符合单位面积负荷指标范围。2-2热负荷计算2-2-1围护结构的耗热量 2-2-2门窗缝隙渗入冷空气的耗热量 其余房间计算见附录2-2-3新风热负荷新风热负荷计算房间人数每人新风量新风量定压比容新风量室外空气温度室内空气温度新风冷负荷nLGCMtotRQco（人）m3/（h*人）m3/hkJ/（kg/0c）kg/sw商场1972039401.0131.109-32025499.46会议室25369001.0130.253-3205824.75办公室5251251.0130.035-320808.99 2-2-4各项热负荷汇总表2-15 总热负荷一层二层汇总三到六层汇总顶层汇总总热负荷面积指标59945.43132744.3951152.81243842.6382.032-2-5热负荷计算小结由以上汇总表可知，本次设计的综合楼总热负荷为Q总=243.84kW。此次设计的综合楼空调面积为3085，则单位面积的负荷值为Q=（243.841000）3085=82.3W/一般综合楼的单位面积负荷指标为81105W/，因此本次设计的负荷计算结果符合单位面积负荷指标范围。2-3湿负荷计算 房间人数n 集群系数散湿量gD（kg/h）湿量（g/s）一层二层商场1970.8918432.268.96会议室250.891092.430.67办公室50.891090.490.14第三章 空调方式3-1空调系统的分类3-1-1全空气系统方案的确定全空气系统运行时，冷、热介质不进入空调房间，只进入空调机房。因此，被空气调节房间的冷、热量全部由经过处理的冷、热空气负担。商场房间空间大，人员密集，冷负荷密度大，室内热湿比小，综合各个因素采用一次回风定风量全空气系统。3-1-2风机盘管加新风方式的确定三层七层办公室小空间人员集中程度大，各房间的负荷根据运行时间不一致，且各自有不同要求，因而采用风机盘管加新风系统。风机盘管直接放置在各个空调房间内，对室内回风进行处理；新风则由新风机组集中处理后通过新风管道送入室内与风机盘管新风混合后送入。新风机组采用联合开利吊顶式新风机组。风机盘管加新风系统的冷量或热量是由空气和水共同承担，所以属于空气-水系统。3-2空气处理过程设计3-2-1 全空气系统设计计算一、夏季送风状态点和送风量空气送风状态点和送风量的确定可在i-d图上进行，具体步骤如下：(1)在i-d图上找出室内状态点N，室外状态点W(2)根据室内冷负荷Q和湿负荷W求出，再过N点画出此过程线(3)确定送风温差t，过程线与相对应的等温线相交于O点，O点即送风状态点。(4)过O点做垂线交相对湿度90%的曲线于L点，由确定新风与回风的混合状态点c，连接c和L点。如图3-1所示：每层单独一个系统，以一层为例：(1)计算室内热湿比：商场=Q/W=56908.34/8.96=6351.38(2)确定送风状态点取送风温差t=7，则送风点to=19，过点N （tN=26，=60%）作=6351.38的直线交t=19的等温线于O点，则io =46 kJ/kg，过O点作垂线交设定的=90%的曲线于L点, tL=16.8, iL=44 kJ/kg.(3)总风量：商场G=Q/(iN-io)=56.91/(58.85-46)=3.83 kg/s=12646.3 m3/h(4)由新风量Gw=1255g/s=11496.63m3/h（比10%G大，即选此值）以及总风量G=3.83kg/s得一层商场新风比为=32.75%,即32.75%,则混合点C的位置可确定，ic=71.09kJ/kg。(5)商场耗冷量：Qo=G(ic-iL)=3.83(71.09-44)=103.75kW(6)商场内冷量分析：冷负荷 Q1=56.91kw； 新风负荷Q2=Gw(iW-iN)=1.26(91.5-58.85)=40.99kW 再热量 Q3=G(io-iL)=3.83(