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the decay of boiler material by chemical or electrochemical attack by its environment is known as boiler corrosion
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∙ 11y ago
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Why is my boiler water orange?
It could be that the pipes and boiler is showing iron rust and corrosion.
Why do you inject oxygen scavenger in boiler feed water?
Oxygen is a highly reactive gaseous element. In the presence of steel, the corrosion rate of oxygen doubles for each 30°F rise in temperature. For example, in a boiler system operating at 400 psig and 444°F, the corrosion rate for oxygen is 256 times more reactive than at room temperature. Sodium sulfite is a highly effective oxygen scavenger Erythorbate, Diethyl hydroxylamine, Methyl Ethyl Ketoxime, Carbohydrazide and Hydroquinone are other alternatives.
What is corrosion resistance?
The ability of the metal to resist corrosion in atmosphere with moist.corrosion ocuurs in ferrous materials in which ferrous chemically react with oxygen forming rust or corrosion. Corrosion can be avoided by Heat treatment and surface coating .
What is main purpose of refractories of boiler furnace?
one of the main purpose of refractories in the boiler furnace is to
What gas boiler alleviates the need for cwsc f?
what gas boiler alleviates the need for a cwsc
Why is my boiler water orange?
It could be that the pipes and boiler is showing iron rust and corrosion.
Spalling in a boiler reters to?
corrosion and erosion due to lack of heat transfer
What does boiler blowdown means?
Boiler blowdown is required to prevent corrosion by removing impurities that contribute to its formation in a steam boiler and to facilitate the generation of pure steam by preventing the carryover of impurities. Why Boiler Blowdown is Required? Proper blowdown procedures are necessary to maintain the solids content of the boiler water within specific limits and to quickly eliminate contaminants if the water becomes contaminated.
What is the deaerator device used for?
A deaerator device is a mechanism found on steam boilers. Its purpose is to remove oxygen and other gases from the water that is entering the boiler tank, since the presence of oxygen or gases can cause corrosion on the inside of the boiler.
How magnetite layer is useful in boiler corrosion?
Magnetite Layer is developed after essential chemical treatment. For instance, hydrazine and sodium sulfite are the most broadly chemicals. The presence of this layer has as result the deceleration of corrosion attack in tube's surface. Moreover, when this protective layer is spoiled, then mechanism of corrosion is going to start.
What are the consequences of low alkalinity in boiler water?
corrosion problems because of the acidity as well as the other water treatments may not work if the alkalinity is out of target
What is hot end corrosion in boilers?
One of the problems with heat recovery boilers behind incinerators of solid,liquid or municipal solid wastes is high temperature corrosion associated with the formation of complex eutectics which have a low melting point and deposit as slag on boiler heating surfaces.This is difficult to get rid of and results in high temperature corrosion,fouling problems and consequent higher exit gas temperature from the boiler and consequent lower steam generation.Another concern in these applications is the presence of corrosive gases such as chlorine and hydrogen chloride,which corrode the boiler tubes,particularly those operating above 800 F,resulting in tube thinning and failure
Why do you have brown water coming out of your hot water tap you have drained tank but it still happening and the cold water tap is running fine?
corrosion somewhere between the boiler and the tap (or in the boiler) is most likely. Give it a good clean- look on the internet for how to get the rust off it. Good luck sexy!
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
Define boiler and classification of boiler?
Boiler can be classified as below
Why do you inject oxygen scavenger in boiler feed water?
Oxygen is a highly reactive gaseous element. In the presence of steel, the corrosion rate of oxygen doubles for each 30°F rise in temperature. For example, in a boiler system operating at 400 psig and 444°F, the corrosion rate for oxygen is 256 times more reactive than at room temperature. Sodium sulfite is a highly effective oxygen scavenger Erythorbate, Diethyl hydroxylamine, Methyl Ethyl Ketoxime, Carbohydrazide and Hydroquinone are other alternatives.
Which chemical used in descaling for steam boiler?
Much depends on boiler operator and his decision, normally with assistance from his the chemistry representative that he deals with, acids normally are used (with corrosion inhibitors added to help protect metal from the particular acid being used Some of the types of acids that are used: (with corrosion inhibitor additives). Hydrochloric acid (HCl acid) (Muriatic acid). Tri-sodium phosphate (TSP) and sodium hydroxide (NaOH), (Usually 1:1 ratio). Phosphoric acid. Sulfuric acid. sulphamic acid. and there are some other acids or formulas of acids . It is best to talk with your boiler chemistry representative for advice on treatment of scale. Prevention as always is the best cure.
