Determination of boiler feedwater temperature
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May I ask, when designing a boiler, how is the feedwater temperature determined for the boiler feedwater?
The temperature of the deoxygenated water is 104 degrees.
The temperature in the medium-pressure boiler is 104 degrees after deoxidization, but with a secondary economizer, it reaches 200 degrees before entering the boiler
The feedwater temperature is available in three settings: 20°C, 60°C, and 105°C. When thermal deoxidation is used, the feedwater temperature is usually 60°C or 105°C; under normal circumstances, it is 20°C. The temperature for feeding into the boiler is determined by the temperature in the deaerator, or the water temperature before the economizer; on the side without an economizer, it is the direct feedwater temperature.