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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 else can I help you with?
What are the common oxygen scavengers used for boiler water?
There is a chemical called Carbohydrazide which is used in boiler water. Carbohydrazide is a volatile oxygen scavenger, contributes no solids to the system, reacts readily with oxygen at low temperatures and pressures, and passivates the metal of the boiler system. Carbohydrazide cannot be used in applications where the steam comes into contact with food.
What Amine do in boiler water?
Amines are used in boiler water primarily as oxygen scavengers to prevent corrosion in the boiler system. They react with dissolved oxygen to form harmless byproducts, thereby reducing the risk of pitting and other types of corrosion in boiler components. Additionally, some amines can help maintain pH levels and improve overall water quality, enhancing the efficiency and longevity of the boiler.
What is boiler feed water?
Boiler feed is the fresh or treated water to replenish the water loss though evaporation or leak
Why is it important to maintain a gas-free condition in the boiler feed water?
Maintaining a gas-free condition in boiler feed water is crucial to prevent corrosion and scaling within the boiler system, which can lead to decreased efficiency and increased maintenance costs. Dissolved gases, especially oxygen and carbon dioxide, can cause pitting and other forms of corrosion in metal components. Additionally, gas bubbles can impair heat transfer, reducing the overall performance of the boiler. Ensuring the feed water is free of gases helps extend the lifespan of the boiler and improve operational reliability.
What is Function of boiler dearating feed tank?
A boiler de-aerating feed tank serves to remove dissolved gases, primarily oxygen and carbon dioxide, from the boiler feedwater before it enters the boiler. This process helps prevent corrosion in the boiler system, which can significantly extend equipment life and improve efficiency. The tank also ensures that the feedwater is properly heated and stored, maintaining optimal conditions for steam generation. Additionally, it acts as a surge tank, providing a buffer for fluctuations in water demand.
What are the common oxygen scavengers used for boiler water?
There is a chemical called Carbohydrazide which is used in boiler water. Carbohydrazide is a volatile oxygen scavenger, contributes no solids to the system, reacts readily with oxygen at low temperatures and pressures, and passivates the metal of the boiler system. Carbohydrazide cannot be used in applications where the steam comes into contact with food.
What are the alternative dissolved oxygen scavengers other than hydrazine for hp boiler feed water?
Alternative dissolved oxygen scavengers for high-pressure boiler feed water include sulfite, carbohydrazide, and tannin-based products. These chemicals can effectively reduce dissolved oxygen levels in the water to prevent corrosion and damage to the boiler system. It's important to carefully choose the scavenger based on the specific requirements and operating conditions of the boiler.
Will boiling water remove oxygen from boiler water?
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.
What is oxygen percentage in boiler feed water?
1ppb for O2 and CO2
What Amine do in boiler water?
Amines are used in boiler water primarily as oxygen scavengers to prevent corrosion in the boiler system. They react with dissolved oxygen to form harmless byproducts, thereby reducing the risk of pitting and other types of corrosion in boiler components. Additionally, some amines can help maintain pH levels and improve overall water quality, enhancing the efficiency and longevity of the boiler.
Why do you inject phosphate in boiler feed water?
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.
Why distilled water cannot be used in boilers?
needs the oxygen removed in the distilling process to boil in the boiler
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.
What is a function of deaerator?
deaerator is a device used to remove dissolved oxygen and carbondi oxide in boiler feed water. it causes scaling inside the boiler tubes and economizer also.
What is a water scavenger beetle?
The water scavenger beetle's predator are birds and fish.
What is a water scavenger beetles predator?
The water scavenger beetle's predator are birds and fish.
At what size is a hot water heater considered a boiler?
NONE a boiler is a boiler and a water heater is a water heaterSEE ASME section IV or the NBBI
