Drum is a cylindrical pressure vessel, also known as drum, which is used for steam-water separation and steam purification of water-tube boilers, forming a water circulation loop and storing boiler water. Its main function is to receive water from the economizer, separate steam and water, supply water to the circulation loop, and deliver saturated steam to the superheater.

There is a certain amount of water in the drum, and there is a certain amount of heat and working medium storage, which can slow down the change speed of steam pressure when the working condition changes, and play a certain buffering role when the water supply and load are not coordinated in a short time. There are steam-water separation, steam cleaning, dosing and continuous blowdown devices in the drum to ensure the steam quality.

Extended data:

Drum (also called steam drum) is the most important pressure component in natural circulation boiler, and its functions mainly include:

1 is the connecting hub of the three processes of heating, evaporation and overheating of the working medium, ensuring the normal water circulation of the boiler.

2. There are steam-water separation devices and continuous blowdown devices inside to ensure the quality of boiler steam.

3. There is a certain amount of water and a certain heat storage capacity, which can alleviate the change speed of steam pressure.

4. There are pressure gauges, water level gauges, emergency water drainage, safety valves and other equipment on the drum to ensure the safe operation of the boiler.

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