【《某医院门诊综合楼空调水系统的设计计算案例》2200字】

II某医院门诊综合楼空调水系统的设计计算案例1工程概况及设计内容1.1建筑概况本工程为岳阳市中医院门诊综合楼空调系统设计，建筑面积约17530.88m2，建筑层数为十四层，包括门诊室、会议室、办公室、值班室、检查室、病房及其它辅助用房。最高建筑高度：49.5m。工程供应的图纸有：建筑平面图，屋顶平面图等。1.2气象概况查阅以往天气材料之后发现，在夏天的时候岳阳市的干球平均温度是34.1℃，28.3℃和32.2℃分别是湿球温度与日平均温度。在冬天的时候，-2℃，78%分别是室外温度和室外相对湿度。，北纬29°23′、东经113°05′。选择的冷源是城市的自来水。制冷站冷水提供水的温度为7℃／12℃1.4围护结构资料外墙类型：外墙采用I类型墙体；（自外而内：水泥砂浆；加气混凝土砌块（B07级）：无机轻集料保温砂浆；抗裂砂浆），传热系数K=0.71W/(m2×k)；上人屋面，III级防水，（自外而内：混凝土板；刷热沥清玛啼脂一道；80厚聚苯乙烯泡沐塑料板保温层；加气混凝土找坡i=2%；30厚C20细石混凝土找平层；刷冷底子油一道；45#SB5改性油毡(页岩覆面）；10厚铺地缸砖，用水泥砂浆内掺胶料，顺泛水铺砌），传热系数K=0.45W/(m2×k)。玻璃窗类型如下：玻璃幕墙类型：窗体采用Low-E玻璃双层窗，金属窗框，80%玻璃，传热系数修正值CW=1.20，传热系数为K=2.7W/(m2×k)；窗内遮阳均采取活动百叶帘（中间色），遮阳系数Ci=0.60；1、设计草案的确定2、计算空调热（湿）载荷（1）建筑围护结构传热的计算（按冬、夏季分别进行）；（2）通过外窗太阳辐射热引起冷负荷的计算；（3）人体散热散湿的计算；（4）照明设备散热引起冷负荷的计算；（5）夏季热（湿）负荷汇总表。（1）分夏冬两季计算建筑周围结构的传热性（2）计算由外部阳光照射出现的冷载荷值（3）计算人体散发热量值和散发湿度值。（4）计算电气设备散发热量出现的冷载荷（5）汇总夏天热和湿载荷值3、设计气体调整过程（1）明确室内的气体流动方式（2）计算新风量（3）计算并确定夏季空调过程送风量（附i-d图）；4、选择气体处理设备并计算。5、计算室内气体流动装置（挑选设置送、回风口，设置送、回风风道等）6、计算送、回风风道系统所需水力。7、计算和设计空调系统消声减振。8、设计空调用制冷装置与选用和计算冷水机组及其数量；9、设计与配置空调机房。2空调水系统的设计计算2.１空调水系统的确定2.1.1空调水系统的划分空调系统的必要条件、节省材料、节能和刚加方便的运行为基础进行设计，对空调管路的环路的设计也需要考虑到安装地的场所职能以及所在层数和负荷特性。为了保证设计的完美，需要将空调风系统和水系统结合起来进行考虑。2.1.2空调水系统的形式如图8-1即为空调水系统的形式。图8-1空调水系统的主要形式2.2冷冻水管路的设计：系统风盘+新风系统冷冻水管的设计：图8-2二层冷冻水管最不利环路示意图（1）求出各管段的水流量。在计算每个管段的水流量时，应该先考虑管段的冷负荷。计算公理：3600Q/4.187×103（tg-th）=G（2）单元长度与摩阻R之比应限制在100—300Pa/m根据[8]的第6.6.7，闭式系统K=0.2mm是当量绝对粗糙度。对于每个管段的管径d，可以用长度单位与摩阻R之比来对流速进行明确。（3）图表8-2有关于水力计算表4立管1楼层2水力计算表最不利环路阻力(Pa)54958最有利环路阻力35118楼层内不平衡率14.10%编号Q(W)G(kg/h)L(m)D(mm)υ(m/s)R(Pa/m)ΣξΔPy(Pa)ΔPj(Pa)ΔP(Pa)F182.82651.01213.281.56017661367FG27210912402.752.31650.95188.851.54376751112FG37062012146.648.9650.93181.430.11615431658FG46686011499.921.92650.88163.341.5314580895FG56480211145.940.94650.85153.830.114436180FG65997810316.2210.4650.79132.661.613804981878FG759311020.131.83250.46151.971.5279159438FG84503774.522.02250.3591.040.11846190FG93075528.93.6200.42191.560.16909699FG10540479296.081.75650.71108.751.5190379570FG11530189119.11.6650.7104.840.116724192FG12515908873.481.93650.6899.530.119323216F491.67650.6795.790.115922182F883.6650.6590.710.132721347F263.6650.6385.770.130920328FG16462777959.643.6501289.260.11041501092F032.88500.97272.330.178447831FG184824829.731.65250.37103.431.5171105276FG192058353.981.75200.2891.31.516060220FG201029176.993.53150.24100.590.13553358FG212058353.981.75200.2891.31.516060220FG223760646.729.1200.52279.010.12538132552FG232271390.611.89200.31109.362.1207103310FG244706809.431.29250.3798.781.5127100227FG253217553.323.6200.44208.370.175010760F182.67651.01213.28256910221591FH27210912402.751.86650.95188.85335213501702FH37062012146.649.35650.93181.430.11697431740FH46686011499.921.62650.88163.341.5265580846FH56480211145.940.94650.85153.830.114436180FH65997810316.2210.7650.79132.660.11420311451FH759311020.131.38250.46151.973210318528FH84503774.522.62250.3591.040.12396245FH93075528.93.6200.42191.560.16909699FH10540479296.082.2650.71108.753239759998FH11530189119.11650.7104.840.110424129FH12515908873.482.53650.6899.530.125223275F491.07650.6795.790.110222124F883.6650.6590.710.132721347F263.6650.6385.770.130920328FH16462777959.643.6501289.260.11041501092F033.11500.97272.330.184747894FH184824829.731.2250.37103.431.5124105229FH192058353.982.2200.2891.31.520160261FH201029176.993.53150.24100.590.13553358FH212058353.981.75200.2891.31.516060220FH223760646.728.65200.52279.010.12413132426FH232271390.612.79200.31109.362.1305103408FH244706809.431.74250.3798.783172200372FH253217553.323.6200.44208.370.175010760E11647283.2812.17150.39238.1512.228973093533832E21428245.624.97150.34182.99119093063331542E31428245.624.97150.34182.99119093063331542E41428245.624.97150.34182.99119093063331542E51667286.725.98150.4243.5312.214563095732413E6431827427.31.54500.94253.2153901438714777E71428245.624.97150.34182.99119093063331542E81428245.624.97150.34182.99119093063331542E91428245.624.97150.34182.99119093063331542E101428245.624.97150.34182.99119093063331542E111029176.997.04150.24100.59117083032931037E121428245.624.97150.34182.99119093063331542E131029176.997.04150.24100.59117083032931037E142412414.868.31200.33122.1712.210153067531691E152412414.864.47200.33122.17115463060931155E161029176.993.7150.24100.59113723032930701E171029176.993.7150.24100.59113723032930701E181471253.0110.75150.35193.2612.220773074632823E19800137.63.97100.34269.351110693062831698E201489256.114.41150.35197.64118723068931560E211489256.114.41150.35197.64118723068931560E221728297.2211.41150.41260.3312.22