主机群控制系统说明.ppt

1、 Chiller Control Panel w/Build in Chiller plant Control Solution Package Marketing AnalysisTraditional Business Model of HVAC Project overviewTraditional Business Model of HVAC Project overview:Key component of HVAC:Chiller,Pump,CT,piping,electric panelChiller,Pump,CT,piping,electric panelControls(?

2、)-optionalControls(?)-optionalConsultant:Chiller biding packageControl biding packageOwners:Budget for Chiller(must),Controls(optional or combine with BA controls)Budget for BA Competitors:Focus on total system controls Brand name company advantage(Honeywell,Siemens,Johnson Controls)Less focus on Ch

3、iller plant controlsAPT Engineering IEEE 802.3 (TCP/IP)FFU Workstation CUP PCOffice PCCUP PCTotal System Solution Web ServerBrowserTRACER SUMMIT Chiller BACnet networkHOME ColorPrinterNetwork printerRemote control function12/29/97612/29/977Design Philosophy of 5 C and 9 C Chilled Water SystemsPrimar

4、y-Secondary Loop 特性特性 冰水用量大系統採用，理想狀態 一次側流量二次側流量 一次側指供應側，冰水主機，一次側泵浦（N+1 Redundancy）二次側指附載側，二次泵浦（N+1 Redundancy），二通控制閥，冰水盤管，溫度壓差感測器，變頻器等 一二次側以一旁通管（De-Couple）連通，各自形成獨立循環系統 一次側泵浦：定量循環冰水通過冰水主機進行熱交換，採用低揚程，定流量 二次側泵浦：變動負載側，採用高揚程，可變流量 一次側流量一次側流量 二次側流量二次側流量（部分二次回水側流向二次給水側，出水溫度上升）負載增加，二次給水無法控制於正常出水溫度，負載側冷卻不足能源

5、浪費 對策對策加開一組冰水主機，並聯冰水主機運轉（平均電流降低）若為假性需求負載，降低二次側泵浦速度，或修正二次側差壓設定值 一次側流量一次側流量 二次側流量二次側流量（部分一次冰水給水側流向一次冰水回水側）負載減小，二次側給回水溫度差降低 對策對策保持現狀；如果旁通管流量超過一台冰水主機量，或冰機平均電流降低至50%以下，關閉一組冰水主機 詮恩冰水主機最佳化控制軟體(內建式圖控軟件內建式圖控軟件)Standard application(Chiller Plant Control)Set up with an editor No custom programming required1.Pe

6、rforms the basic chiller plant functions(提供冰水主機系統控制套裝軟體程式)2.Controls system leaving water temperature(控制系統希望出水溫度值)3.Adds and subtracts chillers(冰水主機加機,減機功能)4.Sends setpoints(控制設定值)5.Recovers from failures(重置失效保護模式)6.Starts the next machine when one fails(立即啟動下一台主機當失效模式發生)7.Optimizes energy use(最佳化啟停

7、)8.Only runs the required number of chillers(控制軟體只作用操作者指定的主機)9.Gives preferential loading to the most efficient machines(Peak,Base,Swing)(可編排不同噸位主機之啟停模式)10.Equalizes run time and wear(可平均主機運轉小時及次數)11.Rotates machines either automatically or manually(自動,手動變更主機啟停順序12.Capacity(主機噸位)13.Each plant can ha

8、ve up to 25 chillers(最多可控制25台主機)14.Each Tracer Summit system may have multiple plants(可設定多組主機管理程式)15.Status screens(即時狀態顯示)16.Special chiller plant control status screens(單獨編輯視窗)17.Shows next anticipated system action(顯示軟體預估步驟)18.Allows for operator override(允許使用者強迫控制)19.Allows the operator to troub

9、leshoot the chiller plant(允許使用者重置失效主機或控制軟體重新執行)12/29/9711Design Philosophy of 5 C and 9 C Chilled Water SystemsPrimary-Secondary LoopCHSCHRVFDVFDVFDDe-coupleSecondary LoopPrimary LoopTETTETTETTETTETFQTVFDPDTVariableLoads二次側流量二次側流量 一次側流量一次側流量12/29/97125 C Chilled Water System SchematicIce Storage5C C

10、HS10.6C CHRVFDVFDVFDVFDVFDVFD9C CHR9C CHSHTXHTXDe-couple5CH-P-025CH-P-035CH-P-045CH-P-055CH-P-065CH-P-075CH-P-085CH-P-01 Stand-by5CH-CH-085CH-CH-075CH-CH-065CH-CH-055CH-CH-045CH-CH-035CH-CH-025CH-P-195CH-P-205SC-P-065SC-P-055SC-P-045SC-P-035SC-P-025SC-P-01Secondary LoopPrimary LoopTETTETTETTETTETFQT

11、VFDVFDPDT12/29/97139 C Chilled Water System Schematic9CCHS14.6CCHRVFDVFDVFDVFD5C CHS5C CHRHTXDe-couple9CH-P-169CH-P-159CH-P-149CH-P-139CH-P-129CH-P-119CH-P-109CH-P-099CH-CH-109CH-CH-119CH-CH-129CH-CH-139CH-CH-14Heat Recovery9CH-CH-169SC-P-079SC-P-089SC-P-099SC-P-109SC-P-119SC-P-12SecondaryLoopPrimar

12、y LoopStand-by9CH-P-179CH-CH-09Heat Recovery9CH-CH-15VFDVFDVFD9SC-P-18TETFQTTETTETTETTETCUP 1F9C CHRCUP 2F9C CHRTETTETTETTETFQTPDTADD DecisionADD Equation:System SupplyWater Temp System Supply Add Water Temp Deadband Note:This condition must exist continuously for the Add Delay Time.SUBTRACT Decisio

13、n(Temperature)DesignDelta TSubtractDelta T96457810SUBTRACT Equation:Actual SystemDelta T Note:This condition must exist continuously for the Subtract Time.SUBTRACT Decision(Temperature)SubtractDelta TSUBTRACT Delta T Equation:Where:CTS is Cooling Capacity To beSubtractedSUBTRACT Decision(Temperature

14、)SubtractDelta TDesignDelta T*(1CTSCCE)STD CCE is Cooling Capacity Enabled STD is Subtract Temperature DeadbandOpportunitiesOpportunitiesn nBuild in Control Panel in ChillerBuild in Control Panel in Chillern nAvailable cover the chiller plant control functionAvailable cover the chiller plant control

15、 function 1.Master/Slave function 2.Time of day schedule 3.open protocol for BA communication 4.Expandable to system solutionn nBusiness Step:Business Step:1.cooperate with Chiller manufacturer as control panel supplier 2.Task Coverage:Startup,Maintenance contractStartup,Maintenance contract 3.Spec.

16、in 4.Market leadern nWin Win Win SolutionWin Win Win Solution:Chiller MarkerChiller Marker:High profit product,market price product with differential function(Value Add)Consultant:Consultant:Package solution Owner:Owner:Budget saving,Operating Cost Saving,Single source responsibility 1.Master/Slave function2.Time of day schedule3.open protocol for BA communication 4.Expandable to system solution