1、SC020391-F01ContentoftheTraining 培训内容培训内容 nOverviewofthesystem系统概括系统概括 nGeneralSystemDescription系统描述系统描述 nTechnicalSpecification/DesignData技术规范技术规范/设计数据设计数据 nStart-upprocedure启动程序启动程序AT&SF01CHWPage3of29AT&SC020391-F01OverviewofSystem 系统概况 ChilledWaterSystem/冷冻水系统冷冻水系统nThereare8(7useand1standby)Chill
2、ersattheboilerroomforPlantIItoprovidechilledwater(7CSupply/15CReturn)pressurisedbychilledwaterpumpstoACequipment,Processequipmentinproductionbuilding&socialbuildingrespectivelyasshownintheschematicdrawings.由设置在锅炉房的8台冷冻机(七用一备)通过冷水水泵提供冷水(7度供水/15度回水)到相对应的生产厂房、综合楼内的空调设备、工艺设备,如系统图所示。CoolingCondenserWater
3、System/冷却水系统冷却水系统nThereare11sets(10use+1standby,andleft1sparespaceforfutureinstallation)CoolingtowersattheroofofboilerroomforPlantIItoprovidecondenserwaterpressurisedbycondenserwaterpumpstocondenser,PCWsystem,andCDAcompressorrespectivelyasshownintheschematicdrawings.由设置在锅炉房屋面的11台冷却塔(其中10台运行,一台备用,另留一
4、台的空位作为远期预留)通过冷却水泵分别向冷冻机的冷凝器,工艺冷却水系统,及空气压缩设备提供冷却水,如系统图所示。SF01CHWPage4of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nThereisonechilledwaterplant,locatedinboilerroombuilding(C5),servingproductionbuilding,socialbuilding.一个独立的冷冻站位于锅炉房内(C5),为主厂房,综合楼提供冷冻水。nAllchillersaredesignedaslowtemperaturechille
5、r,thelowtemperaturesystemoperatesona7C/15Cbasis.冷冻水系统为低温冷冻水系统,进出水温为7C/15C。nLowtemperaturechilledwaterisrequiredforallcleanroommake-upairunits,andusedforRCUfornon-cleanroomareawherehumidifyrequirementaremoreonerousandtheRCUforcleanroomarea,socialbuilding,andprocesscoolingwatersystem,andsoon.在洁净室新风处理系
6、统中均使用低温冷冻水系统,低温冷冻水系统使用在湿度要求较高和中温冷冻水不能将空气冷却至要求露点温度的生产区新风处理系统。洁净室新风处理系统中的预冷盘管系统,非洁净新风处理系统,及工艺冷冻水系统均需用到低温冷冻水。SF01CHWPage5of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述Pleaseseetheattachedschematicdrawingsandlayoutdrawings#1请看示意图及平面图#1AT&SF01CHWPage6of29AT&SC020391-F01GeneralSystemDescription 系统描述
7、系统描述nChiller 冷冻机冷冻机AT&SF01CHWPage7of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nChiller 冷冻机冷冻机CHWOutlet冷冻水出水管CWOutlet冷却水出水管CWInlet冷却水进水管PressureGauge压力表ThermalMeter温度计AT&SF01CHWPage8of29AT&SC020391-F01CheckValve止回阀GeneralSystemDescription 系统描述系统描述nPrimaryChilledWaterPump冷冻水一次泵冷冻水一次泵Y-Strainer
8、Y型过滤器PressureGauge压力表ButterflyValve碟阀碟阀AT&SF01CHWPage9of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nSecondlyChilledWaterPump冷冻水二次泵冷冻水二次泵AT&SF01CHWPage10of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nC5-305-CHW-HEX-101热交换器PressureGauge压力表ThermalMeter温度计Y-StrainerY型过滤器BalancingValve平衡阀AT&
9、SF01CHWPage11of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nSupplyWaterPipeforPCWHeatExchangerPCWPCW热交换器供水管热交换器供水管ButterflyValve碟阀ControlValve控制阀AT&SF01CHWPage12of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述ReturnWaterDistributionPipe回水支管nChilledWaterHeader冷冻水分水缸冷冻水分水缸BalancingValve平衡阀平衡
10、阀SupplyWaterDistributionPipe供水支管ButterflyValve碟阀Header分水缸AT&SF01CHWPage13of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nMixedWaterPump混水泵混水泵DCCWaterReturn干冷盘管回水DCCWaterSupply干冷盘管供水AT&SF01CHWPage14of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nTheprimaryandsecondarypumpsarede-coupledtoens
11、urethatthedirectdrivepumpsandvariablespeedpumpscanbeoperatedindependentlyandwithdynamicstability.Theprimarypumpsarematchedtothechillers,thechillersareenabledtoensurethatthecoolingcapacityofalluserscanbeattainedatalltimes.Toensurethatthisisalwaysachievedtwomeasurementsaretakenontheprimaryandsecondary
12、sideofthechilledwatersystem,namelythesupplyandthereturnwatertemperatures.Thenumberofchillersshallbestartedasaresultofthiscalculation.ChillersdonotoperateattheirmaximumCOPatfullload,theactualmaximumCOPoftheselectedchillersisvendorreliant.ThedistributionofCOPsacrossthefulloperatingrangeoftheselectedch
13、illershalldeterminethepointatwhichtheBMSinitiatesasignaltoenablethenextchiller.Thiscontrolmethodcouldbedonebyadedicatedchillercontrolsystemassuppliedbyindividualchillermanufacturer.一次泵和二次泵分别连接,以确保直接驱动泵和调速泵能够在动态稳定的工况下独立工作。一次泵容量与冷冻机相匹配,冷冻机确保各使用点在任何情况下能满足其需求。因此可以保证任何情况下一次泵和二次泵侧即供回水温度达到要求。冷冻机启动数量将根据水力计算
14、来定。在满负荷时冷冻机不能达到最大能效比。最大能效比点应由供应商提供。由能效比确认在需要范围内开启的冷冻机数量,楼宇监控系统将发送信号给需要开启的冷冻机。由冷冻机厂家提供的专门控制系统。SF01CHWPage15of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nOnedosingpumpforCHWsystemenablestheinjectionofchemicalsforCHWwatertreatment.Expansionvesselsshallbeinstalledtoabsorbtheexpansionandcontractio
15、nofthewaterduetotemperaturefluctuationandtostabilisethesystempressure.用一个定量泵确保将化学品送至冷冻水系统进行水处理。闭式膨胀水箱用于吸收由于水温变化引起的热胀冷缩想象,可保持系统压力稳定。nThesystemhasonestandbychillerwithassociatedpumps.系统中有一台冷冻机和与其相对应的泵作为备用。SF01CHWPage16of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nChemicalTreatmentmentEquipmentn
16、化学加药设备AT&SF01CHWPage17of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nExpansionVesselforCHW冷冻水膨胀水箱冷冻水膨胀水箱AT&SF01CHWPage18of29AT&SC020391-F01GeneralSystemDescription 系统描述系统描述nCondenserwaterSystemisinstalledatroofofboilerroombuilding.Allcoolingtowersaresupportedonanelevatedconcretesupportstructure.Condenserwaterpumpsare
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