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What is the concentration of phosphate which injecting in boiler feed water as a descaler?
Vpssamy
Phosphate(PO4) is basically reacts with mineral dissolved salts in water and percipitates at high temperature. Generally we maintain 10 - 30ppm PO4 inside steam drum to avoidany deposition.
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What is the calculation of sodium and phosphate ratio for high pressure boiler?
3:1
What is the purpose of phosphate dosing in AFBC boilers?
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
Why do you inject phosphate in boiler feed water?
To control the alkalinity of boiler water which is directly related to pH control. Too alkaline will cause stainless steel to brittle while too low alkalinity will cause corrossion.
How many pounds of pressure does low pressure boiler operate on?
A low pressure boiler is any boiler 15 psi or lower
What carbon monoxied?
it is a poisonous gas that sometimes is leaked out of a boiler
What is the calculation of sodium and phosphate ratio for high pressure boiler?
3:1
Why na3po4 dosing boiler drum?
Na3po4 dosing boiler drum is used mainly for two things. To soften calcium and magnesium to make them slushy and to increase phosphate.
What is the purpose of phosphate dosing in AFBC boilers?
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
Boiler drum which chemicals are using?
chemical is used in sub critical boiler that is tri sodium phosphate added in durm. The main purpose is raise in pH value , salt is converted in to sludge form
Why do you inject phosphate in boiler feed water?
To control the alkalinity of boiler water which is directly related to pH control. Too alkaline will cause stainless steel to brittle while too low alkalinity will cause corrossion.
Why Na3Po4 is feeding in boiler drum?
For softening calsium or magnecium hardness and its become slury, other effect is by used phosphate can increased the Ph value. Shakhawat
What is phosphate conditioning define?
This process is used in internal conditioning of boiler water, on the one hand and conditioning of cooling and process water, on the other orthophosphate such as trisodium phosphate and complex phosphates scuh as sodium hexametaphosphate are both used in steam boilers to precipitate whatever small amounts of calcium ion reach the boiler water through the pretreatment system or by leakage through the condensor. sodium hexametaphosphate is advantageous where the boiler water naturally tents to become too alkaline because it reduces this excess alkalinity by reverting to an acid orthophosphate in the boiler. Sodium hexametaphosphate is also widely used for minimizing the corrosion and pickup of iron by water in circulating cooling systems, in plant water distribution systems, and in municipal systems.
Why boiler drum in cylindrical shape?
because in cylindrical shape stress concentration is less so it can withstand at high pressure also.
Why boiler drum manhole in elliptical in shape?
as the boiler drum is cylindrical in shape due to low stress concentration and in both end the diameter will be less.so for easy entry into the drum for a man the drum man hole is elliptical in shape.
What is Auxiliary Boiler?
An auxiliary boiler is a secondary boiler used to support the main boiler in a steam power plant or marine vessel. It is often used when the main boiler is unable to meet the steam demands, providing additional steam capacity. Auxiliary boilers can also be used for heating purposes during maintenance or downtime of the main boiler.
Define boiler and classification of boiler?
Boiler can be classified as below
How do you eliminate problem of caustic embrittlement?
To eliminate the problem of caustic embrittlement use sodium phosphate instead of sodium carbonate as softening reagents. Adding tannin or lignin to boiler water blocks the hair-line cracks and prevents infiltration of NaOH into these areas. Adding Na2SO4 to boiler water also blocks the hair-line cracks.
