Introduction of Condensate Polishing Water Treatment
Condensate polishing is especially crucial in supercritical or ultra-supercritical generators, where all impurities from the boiler directly enter the turbine. This process results in the buildup of hard deposits which bring about inefficient operation increased costs, and even cause unplanned and disastrous shutdowns.
A condensate polisher also protects the system against condenser leaks. In the event of a leak, a condensate polisher gives operators time to shut down the boiler for cooling waters with high total dissolved solids (TDS). For low TDS cooling waters, condensate polishing systems can even allow the condenser to continue operations while awaiting maintenance work.
By removing these dangerous impurities, condensate polishing systems aid in preserving cycle purity and efficiency. Although polishers do not make plants immune to chemistry issues, they nonetheless lessen the impact of chemistry problems and often allow a plant to continue operating with a minor condenser tube leak or air in-leakage problem that might otherwise require an immediate shutdown. Plants with condensate polishers can also be started up more quickly, which will save utilities time and money and allow more operation flexibility
Advantages Of Condensate polishing:
- The operation of the boiler water supply becomes much more cost-effective
- Blow Down is decreased, and hence Makeup Water consumption is reduced
- Quick start-up is possible, and hence full load is achieved in a short amount of time
- Continual improvements in steam quality result in enhanced turbine life
