The boiler steam drum feed water pump feed system process requirements and process flow chart

Steam drum water level is influence the safe operation of the boiler and boiler steam drum water supply water pump, the important factors that reflect the boiler steam balance between load and water. To keep the normal steam drum water level is the necessary condition to ensure the safe operation of the boiler and steam turbine, this is because:

(1) steam drum water level is too high, will affect the normal work of the separation device within the drum, steam exports too much water and make the superheater tube wall scaling, easy to burn out superheater, also can make saturated steam temperature fell sharply, the superheated steam as steam turbine power, will damage the steam turbine blade, influence the safe and economical operation.

(2) water level is too low, is due to the amount of water in the steam drum, and the load is large, if not timely adjustment will make all of the water in the steam drum liquefaction, causing the water wall pavilion burn out burst, and even explode. Therefore, the boiler steam drum water level must be kept under strict control.

drum boiler feed water pump of water supply system

as a result, the boiler steam drum feed water control task is to adapt to water to the boiler capacity, keep in the steam drum water level within a certain fan Wei, water should not be big small volatility, otherwise the economizer and water supply pipeline safe operation. Process requirements:

1) When the normal operation of the water level fluctuation range: plus or minus 30 ~ 50 m 2)

Exception: + 200 mm. Accident: > 350

3 mm) When an accident to the police. Stable yield.

boiler steam drum feed water pump feed system technical requirements and process flow diagram

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