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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.
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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.
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.
Is a boiler a chlorifier?
No, a boiler is not a chlorifier. A boiler is a device used to heat water or produce steam for heating or power generation, while a chlorifier is a system designed for the disinfection of water through the addition of chlorine. The two serve different purposes in water treatment and heating processes.
What are some applications for a water tube boiler?
Water tube boilers are used in marine and stationary applications. A water tube boiler heats by water flowing through tubes and being heated by fire externally.
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 is a simple vertical boiler?
A simple vertical boiler is a type of fire-tube or water-tube boiler where the boiler barrel is oriented vertically instead of the more common horizontal orientation.
What are the most common boiler problems?
The most common boiler problems often arise because the boiler is not maintained. One is that in hard water areas the element is furred up and so it is not able to heat up the water as it should. Another is that the insulation is shifted and so no longer covers the boiler and keeps the heat in.
What are the common signs and potential risks associated with a boiler leak?
Common signs of a boiler leak include water pooling around the unit, a drop in boiler pressure, unusual noises coming from the system, and visible corrosion or rust. Potential risks of a boiler leak include water damage to the surrounding area, reduced efficiency of the boiler, and the possibility of carbon monoxide leaks if the boiler is not functioning properly.
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 common element is common to water?
hydrogen and oxygen
What does water and land have in common?
Oxygen
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
