Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)落版在此簡單控制系統(tǒng)的組成與結(jié)構(gòu)Compositionandstructureofsimplecontrolsystems謝聰XieCong主講教師Teacher簡單控制系統(tǒng)的組成與結(jié)構(gòu)Compositionandstructureofsimplecontrolsystems過程控制系統(tǒng)各個(gè)部分的整體配合Overallcoordinationofpartsintheprocesscontrolsystem簡單控制系統(tǒng)的組成與結(jié)構(gòu)CompositionandstructureofsimplecontrolsystemsLTLTLCLC過程控制系統(tǒng)結(jié)構(gòu)圖Processcontrolsystemstructurediagram簡單控制系統(tǒng)的組成與結(jié)構(gòu)Compositionandstructureofsimplecontrolsystems溫度Temperature壓力pressure流量flowCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)簡單控制系統(tǒng)：Simplecontrolsystem:由一個(gè)測量變送器、一個(gè)控制器、一個(gè)控制閥和一個(gè)被控過程（對象）所構(gòu)成的單閉環(huán)控制系統(tǒng)。Asingleclosed-loopcontrolsystemconsistingofonemeasuringtransmitter,onecontroller,onecontrolvalve,andonecontrolledprocess(object).LTLC第1位數(shù)字表示工段號Thefirstdigitrepresentsthesectionnumber后續(xù)數(shù)字表示儀表序號Subsequentdigitsindicateinstrumentserialnumber儀表符號標(biāo)準(zhǔn)Instrumentsymbolstandard后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.第1位字母表示測/控參數(shù)Thefirstletterindicatesthemeasured/controlledparameter.TC206Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)LTLC被控過程（水箱）：控制的對象，比如水箱液位，是系統(tǒng)要“盯著”穩(wěn)定的目標(biāo)。Controlledprocess(watertank):Objectbeingcontrolled,suchastheliquidlevelinthetank,isthetargetthesystemneedsto“monitor”toensureitisstable.測量變送器（LT）：代表“眼睛”角色，檢測水箱液位，把實(shí)際液位轉(zhuǎn)成電信號或標(biāo)準(zhǔn)信號傳出去。Leveltransmitter(LT):Actingasthe“eyes”ofthesystem,itcandetecttheliquidlevelinthetankandconverttheactuallevelintoanelectricalsignalorstandardsignalfortransmission.控制器（LC）：代表“大腦”角色，接收LT傳來的信號，和設(shè)定值（比如想要的液位高度）對比、運(yùn)算，決定如何調(diào)節(jié)。Levelcontroller(LC):Actingasthe“brain”ofthesystem,itcanreceivesignalsfromtheLT,comparethemwiththesetvalue(e.g.,thedesiredliquidlevel),performcalculationsanddecidehowtoadjust.控制閥：代表“手”的角色，聽控制器的指令，改變開度（比如控制進(jìn)水/出水），讓液位回到設(shè)定值。Controlvalve:Actingasthe“hand”ofthesystem,itcanchangetheopeningfollowingthecontroller'sinstructions(e.g.,controllinginlet/outletflow)tomaketheliquidleveltothesetvalue.第1位數(shù)字表示工段號Thefirstdigitrepresentsthesectionnumber后續(xù)數(shù)字表示儀表序號Subsequentdigitsindicateinstrumentserialnumber儀表符號標(biāo)準(zhǔn)Instrumentsymbolstandard后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.第1位字母表示測/控參數(shù)Thefirstletterindicatesthemeasured/controlledparameter.TC206Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)LTLC第1位數(shù)字表示工段號Thefirstdigitrepresentsthesectionnumber后續(xù)數(shù)字表示儀表序號Subsequentdigitsindicateinstrumentserialnumber儀表符號標(biāo)準(zhǔn)Instrumentsymbolstandard后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.第1位字母表示測/控參數(shù)Thefirstletterindicatesthemeasured/controlledparameter.TC206Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)第一位字母表示被測（控）變量Thefirstletterindicatesthemeasured(controlled)variable工藝管道標(biāo)號ProcesspipelineidentifierT——溫度T-TemperatureP——壓力P-PressureL——物位L

-LevelF——流量F-Flow

A——成分A

-Composition后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.T——變送T-TransmitterP——

控制P-Control

I——指示I-IndicatorR——記錄R-Recorder

A——報(bào)警A-AlarmE——檢測E-DetectionY——運(yùn)算、信號轉(zhuǎn)換Y–Calculation,signalconversionCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)工藝管道標(biāo)號ProcesspipelineidentifierPT：第一位P（壓力）+后續(xù)T（變送）→就是“壓力變送器”，負(fù)責(zé)把壓力信號轉(zhuǎn)成標(biāo)準(zhǔn)信號傳出去。PT:ThefirstletterP(Pressure)+subsequentT(Transmitter)→“PressureTransmitter,”whichisresponsibleforconvertingpressuresignalsintostandardsignalsfortransmission.LIC：L（物位）+I（指示）+C（控制）→物位指示控制器，既能顯示液位，還能自動(dòng)調(diào)節(jié)。LIC:L(Level)+I(Indicator)+C(Controller)→LevelIndicatorController,whichcandisplaytheliquidlevelandalsoperformautomaticadjustments.Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)工藝管道標(biāo)號ProcesspipelineidentifierLTLC第1位數(shù)字表示工段號Thefirstdigitrepresentsthesectionnumber后續(xù)數(shù)字表示儀表序號Subsequentdigitsindicateinstrumentserialnumber儀表符號標(biāo)準(zhǔn)Instrumentsymbolstandard后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.第1位字母表示測/控參數(shù)Thefirstletterindicatesthemeasured/controlledparameter.TC206Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)工藝管道標(biāo)號ProcesspipelineidentifierLTLC第1位數(shù)字表示工段號Thefirstdigitrepresentsthesectionnumber后續(xù)數(shù)字表示儀表序號Subsequentdigitsindicateinstrumentserialnumber儀表符號標(biāo)準(zhǔn)Instrumentsymbolstandard后續(xù)字母表示儀表功能Subsequentlettersindicateinstrumentfunctions.第1位字母表示測/控參數(shù)Thefirstletterindicatesthemeasured/controlledparameter.TC206就地安裝Localinstallation盤面安裝Panelinstallation盤后安裝InternalpartinstallationCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)給定值

SVSetvalueSV＋＋－測量變送器Measuringtransmitter控制器Controller執(zhí)行器Actuator被控對象Controlledobject操作量Operatingvariable被控參數(shù)Controlledparameter干擾fDisturbancefMVPV熱物料Hotmaterial載熱介質(zhì)Heat-carryingmedia熱交換器HeatexchangerTTTTTCTC簡單控制系統(tǒng)原理圖Schematicdiagramofsimplecontrolsystem控制系統(tǒng)工藝流程圖ProcessflowdiagramofcontrolsystemCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)簡單控制系統(tǒng)原理圖Schematicdiagramofsimplecontrolsystem控制系統(tǒng)工藝流程圖Processflowdiagramofcontrolsystem想要的目標(biāo)

Desiredtarget系統(tǒng)的“大腦”

“Brain”ofthesystem接收Receivesignals發(fā)號issueinstructions聽“大腦”指揮的“手”

“Hand”thatfollowsthe“brain”instructions要控制的“主角”“Object”tobecontrolled“眼睛”“Eyes”Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)控制系統(tǒng)工藝流程圖ProcessflowdiagramofcontrolsystemTT（溫度變送器）：“測量變送器”，檢測熱物料實(shí)際溫度（PV），傳給控制器。TT(TemperatureTransmitter):A“measuringtransmitter”,whichcandetecttheactualtemperatureofhotmaterial(PV)andtransmitittothecontroller.TC（溫度控制器）：對應(yīng)“控制器”，接收TT傳來的PV，和設(shè)定的SV對比、運(yùn)算，輸出控制信號。TC(TemperatureController):Itcorrespondstothe“controller”,receivesPVfromTT,comparesitwiththesetSV,performscalculationsandoutputsacontrolsignal.執(zhí)行器（閥門）：接收TC的信號（MV轉(zhuǎn)化為閥門開度），調(diào)節(jié)載熱介質(zhì)流量，以改變熱交換器的加熱效果。Actuator(valve):ItreceivesthesignalfromTC(MVconvertsittovalveopening),adjuststheflowoftheheat-carryingmediatochangetheheatingeffectoftheheatexchanger.被控對象（熱交換器）：冷物料進(jìn)去、熱物料出來，溫度受載熱介質(zhì)和干擾（比如冷物料流量波動(dòng)）影響。Controlledobject(heatexchanger):Itreceivescoldmaterialsandoutputshotmaterials,withtemperatureinfluencedbytheheat-carryingmediaanddisturbances(e.g.,fluctuationsincoldmaterialflow).Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)（a）溫度控制系統(tǒng)(a)Temperaturecontrolsystem蒸汽steam設(shè)定值setvalue（b）壓力控制系統(tǒng)(b)Pressurecontrolsystem設(shè)定值setvalue設(shè)定值setvalue（c）流量控制系統(tǒng)(c)Flowcontrolsystem設(shè)定值setvalue（d）液位控制系統(tǒng)(d)Levelcontrolsystem設(shè)定值setvalue偏差deviation控制器Controller執(zhí)行器Actuator過程course測量變送裝置Measuringtransmitter干擾Disturbance被控參數(shù)Controlledparameter（操縱變量）控制參數(shù)(Manipulatedvariable)ControlparameterCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)（a）溫度控制系統(tǒng)(a)Temperaturecontrolsystem蒸汽steam設(shè)定值setvalue（b）壓力控制系統(tǒng)(b)Pressurecontrolsystem設(shè)定值setvalue設(shè)定值setvalue（c）流量控制系統(tǒng)(c)Flowcontrolsystem設(shè)定值setvalue（d）液位控制系統(tǒng)(d)Levelcontrolsystem設(shè)定值setvalue偏差deviation控制器Controller執(zhí)行器Actuator過程course測量變送裝置Measuringtransmitter干擾Disturbance被控參數(shù)Controlledparameter（操縱變量）控制參數(shù)(Manipulatedvariable)Controlparameter角色對應(yīng)RolecorrespondenceTT（溫度變送器）測物料實(shí)際溫度→傳給TC（溫度控制器），和“設(shè)定值”對比→指揮蒸汽閥門（執(zhí)行器），調(diào)節(jié)蒸汽量，穩(wěn)定物料溫度（θ）。TT(TemperatureTransmitter)measurestheactualtemperatureofmaterials→transmitstoTC(TemperatureController),comparesitwiththe“setvalue”→commandsthesteamvalve(actuator)toadjuststeamflow,andstabilizematerialtemperature(θ).Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)（b）壓力控制系統(tǒng)(b)Pressurecontrolsystem設(shè)定值setvalue角色對應(yīng)RolecorrespondencePT（壓力變送器）測管道壓力→傳給PC（壓力控制器），對比“設(shè)定值”→調(diào)節(jié)閥門（執(zhí)行器），控制泵出口壓力穩(wěn)定。PT(PressureTransmitter)measurespipelinepressure→transmitsittoPC(PressureController),comparesitwiththe“setvalue”→adjuststhevalve(actuator)tostabilizepumpoutletpressure.Compositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)角色對應(yīng)RolecorrespondenceFT（流量變送器）測管道流量→傳給FC（流量控制器），對比“設(shè)定值”→調(diào)節(jié)閥門（執(zhí)行器），精準(zhǔn)控制流量。FT(FlowTransmitter)measurespipelineflow→transmitsittoFC(PressureController),comparesitwiththe“setvalue”→adjuststhevalve(actuator)topreciselycontroltheflow.設(shè)定值setvalue（c）流量控制系統(tǒng)(c)Flowcontrolsystem設(shè)定值setvalue（d）液位控制系統(tǒng)(d)LevelcontrolsystemCompositionandstructureofsimplecontrolsystems簡單控制系統(tǒng)的組成與結(jié)構(gòu)角色對應(yīng)RolecorrespondenceLT（液位變送器）測儲(chǔ)罐液位→傳給LC（液位控制器），對比“設(shè)定值”→調(diào)節(jié)出料閥門（執(zhí)行器），讓液位穩(wěn)定。LT(LevelTransmitter)measurestanklevel→transmitsittoLC(LevelController),comparesitwiththe“setvalue”→adjustsdischargevalve(actuator)tostabilizelevel.設(shè)定值setvalue（d）液位控制系統(tǒng)(d)LevelcontrolsystemCompositionandstructu