In high different pressure process condition, if the valve type selected were not correct, erosion and corrosion would occur in the trim, especially in steam systems and water spraying systems.
在高差压的工艺条件下，如果选型不当，控制阀往往出现冲蚀、汽蚀问题，尤其是在蒸汽系统和注水系统更为突出。
Unstructured tetrahedral meshes are used to simulate the flow field inside high pressure combined valves of a 600mw ultra supercritical steam turbine under the nominal condition.
采用非结构化四面体网格，对某600 MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模拟。
At the high load condition, change the rotating speed of steam or electricity feed water pumps to ensure the water level of the drum.
高负荷时通过改变给水泵转速改变给水量，用三冲量系统控制汽包水位。
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