PT. Indira Dwi Mitra

PT.Indira Dwi Mitra - Jual Fire Tube Boiler dan Steam Boiler
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Fabrikasi Deaerator heater
Fabrikasi Deaerator heater
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Last Updated
08 May 2020
Minimum Order
1 unit

Specification of

Deaerator Tank

 

Water Purifier

To prevent corrosion, the feedwater supplied to the boiler and steam generators of the thermal and nuclear power plants should not contain more than a few micrograms of oxygen per litre water. The deaerator incorporated into the feedwater heating circuit eliminates continuously the residual oxygen and non-condensable gases contained in the condensate

Deaerator plant

deaerator is a device that removes oxygen and other dissolved gases from water, such as feedwater for steam-generating boilers. Dissolved oxygen in feedwater will cause serious corrosion damage in a boiler by attaching to the walls of metal piping and other equipment and forming oxides (rust). Dissolved carbon dioxide combines with water to form carbonic acid that causes further corrosion. Most deaerators are designed to remove oxygen down to levels of 7 ppb by weight (0.005 cm³/L) or less, as well as essentially eliminating carbon dioxide.

Deaerator Working Principle

Deaeration relies on the principle that the solubility of a gas in water decreases as the water temperature increases and approaches saturation temperature. In the deaerator, water is heated up to close to saturation temperature with a minimum pressure drop and minimum vent. Deaeration is done by spraying the feedwater to provide a large surface area, and may involve flow over multiple layers of trays. This scrubbing (or stripping) steam is fed to the bottom of the deaeration section of the deaerator. When steam contacts the feedwater, it heats it up to saturation temperature and dissolved gases are released from the feedwater and vented from the deaerator through the vent. The treated water falls to the storage tank below the deaerator

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