The role of the boiler feed water pump steam drum drum and structure

Boiler feed water water pump steam drum drum overview

drum is the most important equipment, power plant boiler is a boiler heating, evaporation, overheating of the process of three connection hub, the essential role

water become qualified superheated steam in the boiler, steam drum to pump delivery after three process heating, evaporation, overheating. By the heat water into saturated water is heating process; Saturation vapor into saturated steam is vaporization process; Saturated steam heating process into superheated steam is overheating. These three process respectively by the economizer, evaporating surface, superheater. Drum has a connection with the process of the three, it will accept the economizer and water, And the evaporation surface loop; Saturated steam drum must be distributed to the superheater. Drum is the intersection of three process heating, evaporation, overheating, and heating, evaporation, overheating cut-off point in the process of the three. Therefore, called drum boiler heating, evaporation, overheating connection hub in the process of the three.

the role of the boiler feed water pump steam drum drum

boiler heating, evaporation, overheating three connection hub and cut-off point of the process of energy storage and buffer action. Store a certain amount of water and steam drum, have energy storage effect, when the load change, its not for evaporation and water balance, the change of steam pressure speed has a certain buffering effect. Such as load increases, the steam pressure to drop, then the original in the saturated state of the water, can be boiled part of steam, the steam pressure drop tends to be slow to ensure the quality of steam. Inside the drum is equipped with separation device, steam cleaning device, such as equipment, can be effective separation, steam cleaning, dosing, sewage, etc. , to ensure that the quality of the steam and the quality of boiler. Ensure the safe operation of the boiler. On the drum is equipped with a variety of water level gauge, pressure gauge, water gate, safety accessories, such as reading used to monitor the drum pressure and steam drum water level, to protect the safe operation of the boiler.

the boiler feed water pump steam drum drum structure

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