Admin Table of Contents
- 1 Why deaerator is used in power plant?
- 2 Where is deaerator located in pump?
- 3 Why is deaerator installed at a large height from the basement?
- 4 What is the working principle of deaerator?
- 5 What is a deaerator and how does it work?
- 6 Why is the deaerator installed at a higher height?
- 7 What is the difference between steam turbine power plant and deaerator?
Why deaerator is used in power plant?
Deaerators are mechanical devices that remove dissolved gases from boiler feedwater. Deaeration protects the steam system from the effects of corrosive gases. It accomplishes this by reducing the concentration of dissolved oxygen and carbon dioxide to a level where corrosion is minimized.
Where is deaerator located in pump?
The deaerator is installed at some elevation above the BFW pump to provide the NPSH required by the pump. By definition, the NPSHr is the total suction head over and above the vapor pressure of the liquid pumped.
Why deaerator is used at thermal power plant after condenser?
Deaerator removes dissolved gases like O2, CO2 etc. from feed water which is used for steam generation in the boiler. It is done by heating water to its boiling temperature.
Why is deaerator installed at a large height from the basement?
Why deaerator is installed at a certain height from the pump? Explanation: Deaerator is installed at a certain height from the pump so as to maintain a optimum pressure before suction. Explanation: The feedwater heaters after the deaerator are often called low pressure heaters(l.p.).
What is the working principle of deaerator?
Principles of operation Thermal deaeration relies on the principle that the solubility of a gas in water decreases as the water temperature increases and approaches its boiling point. In the deaerator, water is heated up to close to its boiling point with a minimum pressure drop and minimum vent.
How does a vacuum deaerator work?
Vacuum Deaerator or degasifier are designed to effectively remove select non-condensable gases from the liquid stream. A vacuum is pulled on a stream of water, and the vacuum draws the dissolved gas out of solution, removing it from water.
What is a deaerator and how does it work?
Deaerators work as a feed water heater, these feed water heaters are also called Deaerators, and they serve the dual purpose of heating the feed water to improve plant efficiency and deaerating the feed water to remove gases that could cause corrosion of equipment and piping systems.
Why is the deaerator installed at a higher height?
The deaerator is installed at more hight. Because of for providing proper NPSH suction for boiler feedpump and avoiding the formation of cavitation at suction of feed pump. Really awesome blog!!! I finally found a great post here.
How many types of deaerators are used in power plant?
Two type of Deaerators is employed in the power plant one of is horizontal and other is vertical both of use dby low stem consumption and get maximum efficiency.
What is the difference between steam turbine power plant and deaerator?
The steam is used to drive turbine is condensed in a condenser and then this condensate is used again as feed water. In steam turbine power plant water is traveled in closed loop like in the form of steam and condensate through condenser some water is makeup in the Deaerators in the manner of blow down leakages and losses.