Deaerator water level control method and system and computer storage medium

Abstract

The embodiment of the invention discloses a deaerator water level control method and system and a computer storage medium. The deaerator water level control method and system are used for controllingor adjusting the deaerator water level. The method comprises the steps that the control system monitors and judges whether the working condition of a unit is normal or not in real time in the runningprocess of the unit, and when the working condition of the unit is normal, the rotating speed of a condensate pump is controlled; when the unit working condition is abnormal, whether the abnormity isequipment abnormity is determined, if YES, the opening degree of a regulating adjusting valve is controlled; and if the unit working condition is not equipment abnormality, the rotating speed of the condensate pump and the opening degree of the deaerator regulating valve are controlled. According to the control system, the rotating speed of the condensate pump and the opening degree of the deaerator regulating valve are controlled according to change of the water level of the deaerator, different deaerator water level control operations are executed according to the unit working condition andthe equipment abnormal condition, and therefore the purpose of controlling the water level of the deaerator is achieved.

Description

technical field [0001] The embodiment of the present application relates to the field of thermal power energy development, and specifically relates to a method for controlling the water level of a deaerator, a control system, and a computer storage medium. Background technique [0002] In the process of thermal power energy development in thermal power plants, the function of the deaerator is to remove oxygen and other gases in the boiler feed water by heating to ensure the quality of the feed water; at the same time, the deaerator also has the function of heating the feed water and increasing the temperature of the feed water. The water tank at the lower part of the deaerator is used to store the feed water. Its main function is to balance the water supply of the feed water pump to the boiler and the water volume of the condensate pump into the deaerator to meet the needs of the boiler feed water. [0003] Since the deaerator is continuously inflowing and supplying water du...

AI Technical Summary

Problems solved by technology

When the water level of the deaerator rises, the overflow valve of the interlock deaerator will act, causing the heat loss of soda water. If the water level continues to rise, it will interlock and shut down the four-stage steam extraction system of the steam turbine, the electric valve of the deaerator, and the backstop If the valve is not closed in time, it will cause steam water to enter the last stage blade of the steam turbine, causing water to hit the blade, resulting in damage to the steam turbine body

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