The blow down used to remove sediment from the mud leg
Boiler can be classified as below
Atmospheric Fluidized Bed Combustion Boiler (AFBC boiler) is a type of operational boiler. In a AFBC boiler a little more fluidized bed combustor is added than a conventional shell boiler.
The best way to clean scale is to flush with straight vinegar, for up to 1/2 hour.
Boiler have minimum pressure 28 bar as per. Indian boiler act.so p c xan not call a boiler
Boiler scale removers are chemicals or descaling agents used to remove mineral deposits, such as calcium and magnesium, from the interior surfaces of boilers. These deposits can reduce the efficiency of the boiler and potentially lead to equipment damage if not removed. Scale removers help to clean and maintain the boiler for optimal performance.
Sodium phosphate (Na3PO4) can be dosed into a boiler drum to prevent scale formation and corrosion. It acts as a phosphate-based boiler water treatment that helps to maintain the alkalinity and pH levels in the boiler water, which in turn reduces the risk of scale buildup and minimizes the likelihood of corrosion on the boiler surfaces. Additionally, sodium phosphate can help to sequester hardness ions, such as calcium and magnesium, preventing them from precipitating out and forming scale.
Mineral deposits from use of hard water.
Chloride in a boiler can lead to corrosion and scale formation. Excessive chloride levels can accelerate the degradation of boiler components, reducing their lifespan and efficiency. It is important to monitor and control chloride levels to prevent damage to the boiler system.
Boiling water will not remove oxygen from boiler water; it will actually deaerate the water, reducing the dissolved oxygen content. Oxygen removal from boiler water typically relies on mechanical deaeration processes or chemical treatments.
It's used to remove air and gasses from a boiler system.
Phosphate is injected into boiler feed water to control scale formation and corrosion inside the boiler system. Phosphate forms a protective layer on metal surfaces to prevent scale buildup and reduces the risk of corrosion, improving the overall efficiency and longevity of the boiler.
scales are actually formed by deposit of calcium and magnesium that make water hard
The blow down used to remove sediment from the mud leg
desalination process is used to remove salt and the large boiler are used for it
Boiler pH boosters typically contain chemicals such as sodium hydroxide (NaOH) or tri-sodium phosphate (Na3PO4) to raise the pH of the water in the boiler system. These chemicals help to prevent corrosion and scale formation in the boiler by maintaining the water in the system at an optimal pH level.
Generally the Phosphate dozing is done in the drum of the boiler. it helps to convert the calcium hard salts to soft sludges. the sludges are higher in weight ,so it comes to the bottem of the drum . then it remove by CBD. this is one of the way of avoiding corrosion in Boiler. Vijay RAMCO