61地板辐射采暖设计说明书

天津市天馨苑小区36#楼采暖工程设计HeatingProjectdesignforNo.36BuildinginTianxinyuanDistrictofTianjin摘要本次设计为天津市天馨苑小区36#楼采暖工程设计和小区换热站工艺设计。其中采暖设计包括热负荷计算，采暖系统方案的确定和采暖系统水力计算；换热站设计包括换热站规模的确定、设备的选型计算和换热站的工艺布置及相关计算。36#楼的建筑面积为7863㎡，采暖热负荷114kW，采暖系统形式为地板辐射采暖，热媒设计参数为45/35℃，户内盘管管材选用管径为20mm的聚丁烯（PB）管。换热站供热规模为13万㎡，设计总负荷为4.2MW。一次热网热水由地热供热站提供，设计参数为71/38℃，二次网热水参数为温度45/35℃。换热站内设置两组BBR50型板式换热器，每组承担70%的总热负荷；循环水泵选择三台，型号为KL(W)-125-160A，两用一备；补水泵选择两台，型号为KL(W)-40-125。在设计过程中，查阅了大量的参考资料，采用了目前常用的设备和新的技术，并对建筑节能给予关注。关键词：集中供热；地板辐射采暖；换热站；设计ABSTRACTItisadesignforTianjintianxinyuan36#Buildingheatingengineering,includingthedesignfortheTianjintianxinyuan36#Buildingheatingprojectanddistrictheatingexchangestation,Theheatingdesigncontainsheatingheatloadcalculations,heatingsystemsandtheheatingsystemstodeterminetheprogramofhydrauliccalculation;Heatexchangestationdesigntakesbriefintrodunction,exchangestationequipmentselection,processofcalculationandheattransferstationlayoutandcalculations.36#floorcoverstheareaof4732squaremeters,heatingloadsof100kW,thermalmediasetparametersof45/35℃,heatingsystemintheformofradiantfloorheating,pipediameteris12mm.Thetotalheatloadofstationdesignis4.2MW,heattransferareacovers12millionsquaremeters,theheatingnetworkdesignparametersfortheheatingmediumis71/38℃,thesecondnetworkparametersfortheheatingmediumtemperatureis45/35℃.HeattransferstationschoosetwotypeBBR50plateheatexchangerfromenergy-savingEquipmentCo.LtdBeijingHuaYixin,eachtakes70%oftheheatload;threeKL(W)-125-160A-typecirculatingpumpfromKailiwaterpump,twoKL(W)-40-125-typepumpsfromKailiThirdPump.Indesignprocess,Ihavelookedupalargenumberofreferences,usingthecommonlyusedequipmentandnewtechnology,andpaymuchattentiontothebuildingenergyconservation.Keywords:centralheating;floorheatingsystem;heatexchangestation;design目录第1章设计概况.....................................................................................................11.1设计题目.........................................................................................................................................................11.2设计任务及要求..............................................................................................................................................11.3设计原始材料..................................................................................................................................................21.4设计依据.........................................................................................................................................................3第2章采暖负荷计算...............................................................................................42.1采暖系统设计热负荷......................................................................................................................................42.2围护结构的基本耗热量计算...........................................................................................................................52.3围护结构朝向修正耗热量的计算...................................................................................................................62.4冷风渗透耗热量的计算...................................................................................................................................72.5冷风侵入耗热量的计算...................................................................................................................................82.6热负荷计算举例..............................................................................................................................................8第3章采暖方式的比较与选择.................................................................................103.1集中热力网供热............................................................................................................................................103.2小区锅炉供暖................................................................................................................................................103.3分户采暖.......................................................................................................................................................103.4采暖末端方式的选择.....................................................................................................................................11第4章地板辐射采暖设计........................................................................................134.1采暖盘管的选择与布置...............................................................................................................................134.2采暖盘管设计计算.......................................................................................................................................144.3水力计算.......................................................................................................................................................15第5章换热站方案确定............................................................................................185.1换热站概述..................................................................................................................................................185.2换热站设计