Problems with the quality of boiler water
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The pH of the turbine condensate is always between 8 and 9.5, and it enters the boiler through the water tank. Why then, after adding sodium hydroxide and trisodium phosphate to the boiler water, do the pH and phosphate levels continue to decrease? Currently, the pH of the boiler water is between 6 and 8, and the phosphate level is also below 10. This situation has persisted for three days now, and the cause cannot be identified; I seek help from experts. Is it possible that certain substances in water react with sodium hydroxide and trisodium phosphate to produce acidic substances? Or is there a problem with the boiler water?
It would be more reliable to take samples of the raw water for analysis and then take appropriate action accordingly. Since other elements that may be present in the raw water are unknown, it is not advisable to add chemicals blindly.
1. Dress change； 2. Wastewater discharge ； 3. Liquid level.