Silica analyser for reliable power cycle chemistry monitoring
March 2013Analytical Instrumentation & Environmental Monitoring
The Mettler Toledo Thornton 2800Si silica analyser is a reliable on-line instrument designed specifically for pure water treatment and power cycle chemistry monitoring. This analyser provides assurance of water purity to optimise ion exchange production of pure water and to minimise silica deposits in turbines. Early detection of trace contamination is enabled with minimal operator supervision.
The Thornton 2800Si analyser is fully automatic and provides excellent repeatability and unattended calibration, saving operator time.
Features include:
* Automatic zeroing with every measurement assures stability.
* The convenient grab sample measurement allows for additional samples and quality control checks from other areas of the plant.
* Simultaneous display of silica and measurement timing provides convenient analyser and sample status at a glance.
* The analogue output with choice of scaling enables easy integration into data acquisition or control systems.
* The full enclosure design protects reagent containers and components from the plant environment.
Typical applications include:
* Ultrapure water monitoring at ppb silica levels to ensure high quality water. Silica breakthrough of polisher anion resin is detected at very low ppb levels and contaminated water can be diverted before it reaches critical areas.
* Pure water treatment anion exchange monitoring detects the first breakthrough of silica to trigger regeneration before contamination reaches subsequent treatment stages.
* Power steam quality monitoring protects turbines from silica deposition and resulting imbalance, loss of capacity and efficiency.
* Power condensate polisher monitoring can detect the need for regeneration at low ppb levels before feed water is significantly contaminated.
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