【摘要】 某厂国产引进型600MW超临界汽轮机组在设计阀序下进行阀切换试验时,存在轴振大、瓦温高现象,阀切换试验不能顺利进行,严重影响机组的经济性。针对该机组阀切换过程中的参数变化情况进行了分析,提出了合理的对称进汽阀序方式,顺利地实现了该机组的单阀切换为顺序阀试验,为同类型机组的阀切换试验提供非常实用的参考。更多还原

【Abstract】 Domestic Imported supercritical 600MW steam turbine unit in the design of valve switching sequence valve under test,the existence of axial vibration,and high-temperature phenomena watt,valve switching test can not proceed smoothly,seriously affected the economic unit.In this paper valve switch on the unit parameter in the process of change in the situation analysis,a reasonable sequence symmetrical manner into the steam valve,successfully achieved the unit switch to the order of single-valve pilot valve for the same type of valve switching unit test provides a very useful reference.更多还原