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1、北京市某低温热水地板辐射采暖工程设计BeijingLowtemperaturehotwaterfloorradiantEngineeringDesign届系专业学号学生姓名指导教师完成日期摘要本设计主要是对北京市某住在楼进行低温热水地板辐射采暖的系统设计。该建筑物共二十层,建筑面积为9607m2,建筑总高60m,层高3m,由于建筑高度高于50m,对建筑在垂直方向上分为高低两个区。设计主要任务对低温热水地板辐射采暖国内外现状,总负荷为472kW,由于地板辐射采暖室内实感温度高于设计温度,所以计算时将所得结果取95%,以满足节能要求。在管道铺
2、设方面,选择了交聚乙烯管道双回形铺设方式,在各户安装温控阀和热计量表,对各用户进行温度控制热盒分户计量。对管网进行水力计算确定管径,根据供热管网的水力计算结果选择用户系统与供热管网的连接方式及用户入口装置,确定换热站的热力计算和设备选型等。本设计所用外网热力热水,外网所提供95/75℃热水。在住宅楼的东面建一所换热站,换热后供回水温度40/30℃,换热站设备包括换热器、循环水泵、补水泵、除污器等,采暖补水为软化水,定压采用补水泵变频定压形式,采暖水温要求自动控制。换热站内设备要达到结构紧凑,布局合理,经济耐用的要求。最后绘制施工图。关键词
3、:地板辐射采暖换热站分户计量集中供暖AbstractThisdesignismainlytotheBeijingonelivinginlowtemperaturehotwateronfloorradiantfloorheatingsystemdesign.Thebuilding20layer,thebuildingareaof9607m2,buildingtotalheight60m,thelayeris3m,becausebuildingheightabove50m,thearchitectureinverticaldirectioni
4、ntohighandlowtwoarea.Thedesignofthemaintaskoflowtemperaturehotwaterfloorradiantheatingsituationathomeandabroad,andthetotalloadfor472kW,becausefloorradiantheatingindoordesigntemperaturehigherthanthosetemperature,sowilltheresultscalculatedfrom95%,inordertomeettheenergyrequi
5、rements.Inthepipeline,choosethePEpipeintothedoubleformlaidmeans,ineachinstallationtemperaturecontrolvalveandheatmeter,theusertotemperaturecontrolhotboxofhouseholdmetering.Thehydrauliccalculationofpipenetworkstodeterminediameter,accordingtotheheatingnetworkhydrauliccalcula
6、tionresultsselectuserssystemandheatingnetworkconnectionsanduserentrancedevice,determinetheheatexchangerstationthermodynamiccalculationandtheequipmentselection,etc.Thedesignofthenetworkusedthermalhotwater,thenetsprovided95/75℃hotwater.Ontheeastsideofthebuildingtobuildaheat
7、exchangerstation,heatsupplyandreturnwatertemperatureafter40/30℃,heattransferstationequipmentincludingheatexchanger,thecirculatingwaterpump,watersupplypump,thedecontamination,heatingwaterforwatersoftener,theconstantpressurewatersupplypumpfrequencyconversionbytheconstantpre
8、ssureform,heatingwatertemperatureautomaticcontrolrequirements.Heatexchangerstationpreparedwithto