automation of boiler

8/22/2019 automation of boiler

1/15

Boiler PerformanceAutomation

for Boilers

Chris Golden

Senior AccountManager

Nalco Company


2/15

for Boilers

Performance Management for Boiler Systems

for Boilers

3D TRASAR for Boilers3D TRASAR for boilers

delivers maximummaximum

performanceperformance. Safer operation

Improved system

reliability Lowest Cost of Operation

Technology scope

Advanced monitoring &control

Performance sensors New chemistry

Software

Wireless communication



3/15

for Boilers


3D TRASAR Boiler Basic System

Controller &Fluorometer

@T ORPTM

BoilerSample


4/15

for Boilers


3D TRASAR Internal Treatment

Automatically responds

Maintain optimum treatment levels

Keeps your boiler clean

pp

m

22310

0

5

10

15

20

25

30

35

40

45

01/10/99 01/20/99 01/30/99 02/09/99 02/19/99 03/01/ 99 03/11/99 03/21/99

Date

Optimum Operation

Detect

System

Upsets

TRASAR Automation

1/20/99 01/30/99 02/09/99 02/19/99 03/

Date

0

5

10

15

20

25

30

35

40

45

10/11/1997 20/11/1997 30/11/1997 10/12/1997 20/12/1997 30/12/1997 09/01/1998 19/01/1998

Date

ppm

22310

TRASAR Automation

Good for Boilers from 10 psig toover 2400 psig


5/15

for Boilers


Starter Controller &T3 Fluorometer

@T ORP 3D TRASAR Preboiler CorrosionControl

3D TRASAR Preboiler Corrosion Control

BoilerSample


6/15

for Boilers


Preboiler Corrosion Control Vision

Today:

Test Oxygen

Test ScavengerResidual

Inspect

Equipment

Tomorrow:

Continuous, Real-

Time Measurementof CorrosionPotential

Automation ofOxygen ScavengerFeed


7/15

for Boilers


-100

-600

-700 -600

-500

-400

-300

-200

-100

0

-200

-300

-400

-500

@

Temp

Orp

(mv)

RTORP

(mv

)

Time (hrs)

@T ORP vs RT ORP(at Temp vs Room Temp 200 MW Coal Fired Plant)

@T ORP more sensitive than RT ORP too timize CHZ feed


8/15

for Boilers


ORP Cell Internal

Configuration

@T ORP vs Dissolved O2

-0.4

-0.3

-0.2

-0.1

0

0

100

200

300

400

500

@TORPvsEP

BRE(V)

D

O(ppb)

20 Minutes @T ORP faster response than DO monitor

3D TRASAR P b il C i


9/15

for Boilers


Potential

High

Low

ChemicalTreatment

Low

High

Typical Corrosion Control

Underfeed Results in Corrosion

Overfeed leads to Excess Treatment Costs

3D TRASAR Preboiler CorrosionMonitoring

Today we have fixed feed rates regardless of

the boilers waters potential to corrode


10/15

for Boilers


New Best Practice forPreboiler Corrosion Control

@T ORP Performance based control of corrosion stress

Maintains Reduced Conditions

Minimizes corrosion

Promotes passivation

Customer Value Safety, Reliability

Mitigates failures

Reduce boiler iron deposits

Minimize Cost

Asset protection Minimize downtime

Maximize Availability

Improve turbine efficiency

-0.8

-0.6

-0.4

-0.2

0

0.2

1/23/20060

:00:00

2/2/20060

:00:00

2/12/20060

:00:00

2/22/20060

:00:00

3/4/20060

:00:00

3/14/20060

:00:00

3/24/20060

:00:00

4/3/20060

:00:00

4/13/20060

:00:00

4/23/20060

:00:00

5/3/20060

:00:00

5/13/20060

:00:00

5/23/20060

:00:00

6/2/20060

:00:00

6/12/20060

:00:00

LP#3AT-TORPvsEPBRE

(V)

Phase 2: LP #3 AT-T ORP Controlled

Feed Of Eliminox

Phase 1: AEPCO Controlled Feed Of Eliminox

Baseline Monitoring LP #3 AT-T ORP

LP #3 AT-T ORP Set Point = -350 mV

Figure 1: LP #3 AT-T ORP Results During Phase 1 and 2 of AEPCO Trial


11/15

for Boilers


3D Boiler StarterPerformance Automation

WebInterface

WebServer

Boiler Optimizer

Boiler Configurator

Pretreatment Preboiler

WebInterface

WebServer

Boiler Configurator

At -T ORP probeAt -T ORP probe

Pretreatment Preboiler

Controller Host Module

TRASAR 3 probeTRASAR 3 probe

TRASAR 1 probe

TRASAR 3 probe

TRASAR 1 probe

ConductivitypHpH NCM

&

LCM

Particle counterParticle counterNCM

&

LCM

Boiler Condensate

pHpH Level sensor

or other 4 -20

mA inputs

Misc.

Level sensor

or other 4 -20

mA inputs

Level sensor

or other 4 -20

mA inputs

Misc.

ISE Breakthrough

Detection

ISE Breakthrough

Detection


12/15

for Boilers


Performance Automation

Dynamic Control - Expanded MOC Approach


13/15

for Boilers


3D TRASAR WebSystem Performance Monitoring

3D TRASAR Web is... A convenient way for Nalco Reps

and Customers to monitor systemperformance, and the value of 3DTRASAR control

View performance summary of all

systems Display performance detail for asingle system

Generate, print, and schedulegraphs and reports

Download data to your PC for

advanced analysis and reportingwith Vantage V100

Alarming


14/15

for Boilers


3D Boiler Starter

@T ORP

Controller & Fluorometer

@T ORPPreboiler

corrosion

stress

Monitoring

& Control

TRASAR

Treatment

Control

+

3D TRASARWeb

data analysis, reportingand alarming


15/15


3D TRASAR for boilers delivers maximum

performance under pressure, resulting in a

safer operation, improved system reliability,and reduced total operating costs.

for Boilers

Safety Reliability

for Boilersfor Boilers

Safety

TCO

Reliability

performanceperformanceperformanceperformanceperformance

Performance Under Pressure

Documents

automation of boiler