BOILER CONTROL SYSTEMBOILER CONTROL SYSTEM

Circulating Fluidized Bed Circulating Fluidized Bed BoilerBoiler

Distributed Control SystemDistributed Control System

AW

WP

DCS

FBM

Local

Node Bus

Loop ControlLoop Control

M KG/CM2 96.00

SP 60.50

O % 50.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

ML

MEASHUMENT

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

ML

SET POINT

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

AL

OUTPUT

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

AR

AUTO

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

MR

MAN

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

AR

REMOTE

Loop ControlLoop Control

M KG/CM2 96.00

SP 50.00

O % 80.00

MAIN STEAM PRESS CONTROL 14 MAIN_STEAM PIC 135

ACK DETAIL

A/M R/L

TX SELECTORCLS

AR

LOCAL

Loop ControlLoop Control

OUTPUT 105.00

MAIN STEAM PRESS SELECTOR 14 MAIN_STEAM PS 135 PI 135 PI 134

CLS

PI 135

PI 134

AUTOSELECTED

DETAIL

Loop ControlLoop Control

OUTPUT 105.00

MAIN STEAM PRESS SELECTOR 14 MAIN_STEAM PS 135 PI 135 PI 134

CLS

PI 135

PI 134

AUTOSELECTED

DETAIL

FLUE GAS FAN CONTROL 14 AIR_FANS M.4301

ACK DETAIL CLS

STOPPED

A

START STOP

Loop Start - StopLoop Start - Stop

FLUE GAS FAN CONTROL 14 AIR_FANS M.4301

ACK DETAIL CLS

STOPPED

AD

START STOP

Loop Start - StopLoop Start - Stop

INTERLOCK

FLUE GAS FAN CONTROL 14 AIR_FANS M.4301

ACK DETAIL CLS

STOPPED

A

START STOP

Loop Start - StopLoop Start - Stop

Loop Open - CloseLoop Open - Close

MV2130SOOTBLOWING STEAM VALVE

OPEN CLOSE

FAILURERESET

CLS

Loop Open - CloseLoop Open - Close

MV2130SOOTBLOWING STEAM VALVE

OPEN CLOSE

FAILURERESET

CLS

Feed Tank Level ControlFeed Tank Level Control

Feed Water Tank

Feed Tank Level

Makeup Pump

Level Trans

Drain

Feed Tank Pressure ControlFeed Tank Pressure Control

Feed Water Tank

Feed Tank Pressure Control

Steam From Header

Press Trans

Motor Feed Pump Speed Motor Feed Pump Speed ControlControl

Steam Drum P

MOTOR FWP

Control Valve

Economizer

Speed

Drum Level ControlDrum Level Control

Condenser

BFW Pump

Drum Level Control

Steam Drum

Three Element System

De-superheat ControlDe-superheat Control

De-superheat Control

Feed Water Steam Drum

Steam

Super Heat

Steam Pressure ControlSteam Pressure ControlPressure Control

Fuel Flow

Weight

M - Speed

F

Furnace

F

F

M

M

P

F

Primary Air Fan

Secondary Air Fan

Conv

Conv

%Steam DrumAir Heater

Start up ValveStart up Valve

Steam Drum

Start up Valve Control

M

To Turbine

Furnace

Primary Secondary

M

ID.Fan

M

Furnace ControlFurnace Control

Furnace Control

ESP 2

Recur Gas Fan

ESP 1

Bed Pressure ControlBed Pressure Control

Furnace

Bed Control

M

PC

Screw Bottom Ash

การวั�ด การวั�ด Bed PressureBed Pressure

Instrument Air

Sand

Bottom Ash Drain

O2 ControlO2 Control

O2 Control

F

Furnace

F

F

M

M

P

F

Primary Air Fan

Secondary Air Fan

Flue Gas ControlFlue Gas Control

Furnace

Primary Secondary

Flue Gas Control

Steam Header

Recirculation Gas FanRecirculation Gas Fan

Furnace

Primary Secondary

M

ID.Fan

M

F

P

Bed Temp

ESP

Soot Blower Pressure Soot Blower Pressure ControlControl

Steam Drum

Press Control

Temp

Soot blower

M

Super Heat

Economizer

TG bypass ControlTG bypass Control

TG Bypass

Steam Drum

Steam Header

Turbine

BypassCondenser

Steam To Turbine

To Process

The EndThe End