ISO 7919-2:2009 机械振动 在转轴上测量来评定机器振动 第2部分:50MW以上,额定转速1500r/min、1800r/min、3000r/min、3600r/min陆地安装的汽轮机和发电机
标准编号:ISO 7919-2:2009
中文名称:机械振动 在转轴上测量来评定机器振动 第2部分:50MW以上,额定转速1500r/min、1800r/min、3000r/min、3600r/min陆地安装的汽轮机和发电机
英文名称:Mechanical vibration — Evaluation of machine vibration by measurements on rotating shafts — Part 2: Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1 500 r/
发布日期:2009-10
标准范围
ISO 7919-2:20 09制定了应用现场宽带轴振动严重性评估标准的规定,这些振动是在主轴承处或主轴承附近径向(即横向)测量的。这些是:-正常稳态操作条件下的振动;-当瞬时变化正在发生时的其他(非稳态)条件下的振动,包括运行上升或运行下降、初始负载和负载变化;-在正常稳态操作期间可能发生的振动变化。ISO 7919-2:20 09适用于功率输出大于50 MW、正常运行速度为1 500 r/min、1800 r/min、3 000 r/min或3 600 r/min的陆基汽轮机和发电机。
ISO 7919-2:2009 establishes provisions for applying evaluation criteria for the severity of in-situ, broad-band shaft vibration measured radial (i.e. transverse) to the shaft axis at, or close to, the main bearings. These are in terms of:- vibration under normal steady-state operating conditions;- vibration during other (non-steady-state) conditions when transient changes are taking place, including run up or run down, initial loading and load changes;- changes in vibration which can occur during normal steady-state operation.ISO 7919-2:2009 is applicable to land-based steam turbines and generators with power outputs greater than 50 MW and a normal operating speed of 1 500 r/min, 1800 r/min, 3 000 r/min or 3 600 r/min.
标准预览图


