What does DEA mean in CHEMISTRY
DEA stands for Deareator, which refers to a device commonly employed in industrial processes to remove dissolved gases from water. By eliminating gases, the deaerator significantly contributes to the efficiency and longevity of various systems.
DEA meaning in Chemistry in Academic & Science
DEA mostly used in an acronym Chemistry in Category Academic & Science that means Deareator
Shorthand: DEA,
Full Form: Deareator
For more information of "Deareator", see the section below.
Introduction: The DEA Abbreviation
Function and Applications of Deaerators
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Gas Removal: Deaerators effectively extract dissolved gases, primarily oxygen and carbon dioxide, from water. Oxygen can cause corrosion in metal components, while carbon dioxide can lead to scale formation. Removing these gases safeguards equipment and piping systems.
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Corrosion Prevention: Deaerators play a crucial role in preventing corrosion by depleting oxygen content in the water. Oxygen is a highly reactive gas that instigates corrosion processes, particularly in metal components.
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Scale Inhibition: By eliminating carbon dioxide, deaerators minimize the formation of scale. Carbon dioxide dissolves in water to form carbonic acid, which reacts with calcium and magnesium ions to create scale deposits. Deaeration reduces the availability of carbon dioxide, thereby limiting scale buildup.
Types of Deaerators
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Tray-Type Deaerators: These deaerators utilize trays or plates to facilitate gas-water contact. The water is sprayed onto the trays, allowing it to cascade down while steam is injected from the bottom. The steam agitates the water, promoting gas release.
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Spray-Type Deaerators: Spray-type deaerators employ a high-pressure spray of water to create a large surface area for gas-water interaction. The injected steam heats and agitates the water, enabling the release of dissolved gases.
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Vacuum Deaerators: Vacuum deaerators operate under reduced pressure, lowering the boiling point of water. This vacuum environment draws out dissolved gases from the water, making it suitable for applications where high-temperature water is used.
Essential Questions and Answers on Deareator in "SCIENCE»CHEMISTRY"
What is a Deaerator?
A deaerator is a device used to remove dissolved gases, primarily oxygen, from boiler feedwater. This is essential to prevent corrosion and other damage to the boiler and its components.
Why is it important to remove oxygen from boiler feedwater?
Dissolved oxygen in boiler feedwater can lead to corrosion of boiler components, such as pipes, valves, and the boiler shell. This corrosion can weaken the boiler materials and lead to premature failure.
How does a Deaerator remove oxygen from boiler feedwater?
Deaerators typically use a combination of heating, agitation, and vacuum to remove oxygen. The feedwater is heated to a temperature at which the dissolved gases are released from the water. The gases are then removed by agitation, which creates turbulence and promotes the release of gases. Finally, a vacuum is applied to further remove any remaining gases.
What are the different types of Deaerators?
The two main types of deaerators are tray-type deaerators and spray-type deaerators. Tray-type deaerators use a series of trays to promote agitation and degassing. Spray-type deaerators use a spray nozzle to create turbulence and release gases.
What factors should be considered when selecting a Deaerator?
Factors to consider when selecting a deaerator include the required oxygen removal efficiency, the flow rate of the boiler feedwater, the pressure of the boiler feedwater, and the available space and budget.
Final Words: DEA (Deareator) is an indispensable device in industrial settings, ensuring the removal of dissolved gases from water. Their function in corrosion prevention, scale inhibition, and efficiency optimization makes them invaluable for various processes. Understanding the significance of deaerators enables engineers and technicians to effectively design and operate systems for optimal performance and longevity.
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