real-time corrosion product transport monitoring using on-line particle monitors joe zimmerman...
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![Page 1: Real-time Corrosion Product Transport Monitoring Using On-line Particle Monitors Joe Zimmerman Chemtrac Systems, Inc. Norcross, GA](https://reader035.vdocument.in/reader035/viewer/2022062713/56649cdc5503460f949a7d3d/html5/thumbnails/1.jpg)
Real-time Corrosion Product Transport Monitoring Using
On-line Particle Monitors
Real-time Corrosion Product Transport Monitoring Using
On-line Particle Monitors
Joe ZimmermanChemtrac Systems, Inc.
Norcross, GA
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IntroductionIntroduction
The goal of CPT monitoring is to determine:
when corrosion is occurring where corrosion is occurring how much corrosion is occurring
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IntroductionIntroduction
The ability to monitor CPT in real-time will
allow for: System control actions to be taken based on the
current corrosion product levels Measurement of the effects of the adjustments
on the corrosion product levels
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IntroductionIntroduction
Overview
Steam Cycle Monitoring Particle Detection Technology CPT Particle Monitoring Conclusions
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Steam Cycle Monitoring
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Steam Cycle MonitoringSteam Cycle Monitoring
Traditional Methods
Soluble
- Grab sample tests Metals analysis, various other lab analyses
- On-line analyzers Cation conductivity, sodium, silica, pH, etc.
- Composite sampling Ion exchange columns, resin-impregnated filter pads
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Steam Cycle MonitoringSteam Cycle Monitoring
Traditional Methods
Insoluble
- Grab sample tests Millipore pads, TSS, lab particle analyses
- On-line analyzers Turbidity monitors
- Composite sampling Corrosion Product Monitor filter pads
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Steam Cycle MonitoringSteam Cycle Monitoring
On-line Particle Analysis
provides real-time indication of insoluble particulate loading
allows for continuous data collection & trending
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Particle Detection Technology
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Particle Detection TechnologyParticle Detection Technology
Turbidity Monitors utilize a “light scattering” measurement
Particle Counters & Particle Monitors utilize a “light blockage” measurement
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Particle Detection TechnologyParticle Detection Technology
Turbidity Monitor
Lamp
Photo Detector0.00 NTU0.30 NTU
Lens
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Particle Detection TechnologyParticle Detection Technology
Laser DiodeOr LED Photo Diode
Water Flow
ParticlesLight Beam
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Particle Detection TechnologyParticle Detection Technology
Particle Counter & Particle Monitor Detect particles > 2 microns 1 particle/mL sensitivity <10 PPT detection capability
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Particle Detection TechnologyParticle Detection Technology
Particle Counter Reports results in counts/mL for up to 8 size ranges Allows for size/count distribution profiles
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Particle Detection TechnologyParticle Detection Technology
Particle Monitor Single channel device, producing a “relative”
measurement called a Particle Index (PI) The PI will increase with both an increase in particle size
and concentration
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Particle Detection TechnologyParticle Detection Technology
Particle Counter, Particle Monitor, Turbidity Monitor
How Are Particles Detected?
INSTRUMENT COMPARISON USING AC FINE TEST DUST
0
50
100
150
200
250
300
350
400
450
500
PA
RT
ICL
E C
nts
/mL
- P
AR
TIC
LE
IN
DE
X
0
0.1
0.2
0.3
TU
RB
IDIT
Y (
NT
U)
Particle CounterParticle MonitorTurbidimeter
Particle Counter 21 48 75 106 200 300 390 440
Particle Monitor 50 150 170 200 300 390 460 470
Turbidimeter 0.05 0.05 0.05 0.05 0.06 0.06 0.07 0.07
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Particle Detection TechnologyParticle Detection Technology
Magnetite
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Particle Detection TechnologyParticle Detection Technology
Hematite
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CPT Particle Monitoring
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CPT Particle MonitoringCPT Particle Monitoring
Steam Generation Cycle
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CPT Particle MonitoringCPT Particle Monitoring
Particle Counts During Load Change
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CPT Particle MonitoringCPT Particle Monitoring
HRSG 1 MWHRSG 1 MW, HRSG 2 MWHRSG 1 MW, HRSG 2 MW, Particle Index
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CPT Particle MonitoringCPT Particle Monitoring
CondensateCondensate pH,Condensate pH, Cation Conductivity,Condensate pH, Cation Conductivity & Particles
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CPT Particle MonitoringCPT Particle Monitoring
Condensate DO, Condensate DO, ORPCondensate DO, ORP, & Particles
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CPT Particle MonitoringCPT Particle Monitoring
Nuclear Plant – Iron Transport Data
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CPT Particle MonitoringCPT Particle Monitoring
Fossil Plant – CPM Iron vs. Particle Index Average
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CPT Particle MonitoringCPT Particle Monitoring
Fossil Plant – CPM Iron vs. Particle Index Average
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CPT Particle MonitoringCPT Particle Monitoring
Fossil Plant – CPM Iron vs. Particle Index Average
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Conclusions
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ConclusionsConclusions
On-line Particle Monitoring: Provides continuous tracking of insoluble metal
oxides…a clear advantage over “grab” or “composite” sampling
Complements existing online ionic analyzers, offering additional analytical trends for system performance evaluation
Offers real-time CPT results…treatment program adjustments can be made, and subsequent effects on CPT levels can be measured
Allows for real-time recognition of CPT “events” such that immediate actions can be considered when an event occurs