Steam and water analysis systems (SWAS)
Demineralized water quality used in power plants depends on a series of parameters.
Sodium and silicate (SiO44-) indicate the ionic resin exchange in the water feeding treatment system.
Conductivity value is an ion concentration in water indicator. If it is too high this can cause the accumulation of deposits in the systems.
If the pH value is too low or the oxygen value too high, risk of corrosion might be present.
When measuring dissolved oxygen, it is also possible to determine if negative pressure is causing air leaks in the condenser to verify if degasification is a circuit.
Presence of metals such as iron and copper in the steam/water cycle indicates corrosion in the heat exchanger.
The smart solution for steam/water cycle monitoring. It integrates easily to your process control.
Variables
Condumax CLS15D Digital conductivity sensor
These digital sensors can be used in power plant for the following applications:
• Degas conductivity
• pH measurement via differential conductivity
Sensor suitable for use in explosive areas thanks to its explosion-protection international certifications, such as ATEX and FM.
Conductive
Characteristic
Conductivity cell with 2 electrodes for pure and ultra-pure water
Measurement Range
k=0,01: 0-20 µS/cm
k=0,1: 0-200 µS/cm
Measurement Principle
Conductivity cell with polished stainless steel electrodes
Oxymax COS22D Oxygen digital sensor
Oxymax COS22D takes oxygen measurement in the main processes of a lot of industries.
Sensor Oxygen
Characteristic
Digital sensor for oxygen measuring. Long-term stability for frequent sterilization and autoclave. Trace sensor in the power plant industry
Measurement Range
0,001 ... 20 mg/l
0 ... 200 %SAT
0 ... 400 hPa
Measurement Principle
Oxygen amperometric measurement
Orbisint CPS11D pH digital sensor
Long-term and limit level monitoring of processes with stable conditions:
• Power plants (e.g. combustion gas washers, boiler feeding water)
Glass electrode
Characteristic
Robust version, rough use/high pressure, potential correspondence integrated, plain membrane available.
Measurement Range
pH 0-14
Measurement Principle
Compact gel electrode with PTFE ring diaphragm
Silica Analyzer Liquiline System CA80SI
Detection of silica concentration in boiler feed water.
Condensation and water-steam circuit monitoring.
Reverse osmosis and desalination optimization and monitoring.
Colorimetric
Characteristic
Silica analyzer
Measurement range
0.5 to 200 µg/l (ppb)
50 to 5000 µg/l (ppb)
Consumables
Reactive and standard solutions CY80SI
Maintenance kit CAV800
Water hardness analyzer Liquiline System CA80HA
Online precise analysis of water hardness in consumption and process water. It helps in the softening process of water, like ionic exchange or inverse osmosis, and guarantees a higher quality of products affected by water hardness.
Colorimetric
Characteristic
Process analyzer for water hardness
Measurement range
0 to 80 mg/l CaCO3
0 to 80 mg/l max dilution function 16 to 1600 mg/l CaCO3
Consumables
Reactive and standard solutions CY80HA
Maintenance kit CAV800
Sodium analyzer CA76NA
Steam and water purity indicator used in boilers and turbines.
Early warning for condenser leakage or malfunctions in ion exchangers.
Control of incoming water quality in power plants that use desalination plants as water source.
Potentiometric/ ISE
Characteristic
Sodium analyzer in boiler feed water, steam, condenser and open ion exchangers.
Measurement range
0.1 to 9999 µg/l (ppb) Na
Consumables
CA76NA sodium electrode
CA76NA pH combined electrode
CA76NA standard solution 5100 ppb Na
