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Function: _error_handler
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2024-07-16
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下面对工业汽轮机的转子组件检修内容进行详细说明，供参考学习。
（1）转子组件的吊装
①起吊转子必须使用专用吊具和索具。吊、索具至少须经200%吊装荷载试验合格。
②起吊转子的绑扎位置应避开轴颈、联轴器安装部位等，索具不得压迫围带和叶片，转子要吊平。
③起吊和就位转子时，不许在止推轴承中安装止推瓦块。
④起吊时转子应位于在汽缸中窜量的中间位置，起吊和就位时天车位置应调正，动作应缓慢平稳。转子吊出和放入缸体时应有专人监视，避免转子同缸体内零部件碰撞。
⑤缸体扣盖后，不允许再用天车拉抬转子。
⑥转子支架应牢固，支承部位应垫有软金属垫或胶皮。
⑦运送转子应用专用的运输支架或转子包装箱运输。
（2）转子组件的外观和几何尺寸检查
①清洗转子，检查主轴、叶轮、气封片、止推盘、半联轴器等有无锈蚀、冲刷、裂纹等缺陷。各平衡配重块、配重螺钉无冲刷、固定良好；各级动叶片叶根固定良好，无松动现象。
②检查转子通流部分有无结垢，对产生的垢物作定性、定量分析，并做好记录。可采用细砂布将垢轻轻擦除。
③检查转子叶片、围带、铆钉、拉筋等部件，要求无机械损伤、歪斜、裂纹、松焊等缺陷。详细记录叶片进汽边冲蚀的程度和部位，比较历次检修叶片冲蚀情况及发展趋势，当冲蚀程度比较严重时，应采取处理措施或更换叶片。
④检查转子汽封、围带、无围带叶片顶部和轮盘端面等部位，应无磨损过热痕迹，若有应查明原因进行处理。
⑤检查修理转子轴颈和转子端部装联轴器轴锥段，必须无麻点、压痕、沟槽等缺陷，表面粗糙度应达Ra0.40μm。若表面拉毛轻微时，可采用金相砂纸拉研予以消除，其他损伤应根据实际情况制订方案，选择适当方法处理。
⑥测量并记录转子轴颈尺寸和轴颈部位圆度、圆柱度，要求轴颈尺寸无明显减小，轴颈部位圆度、圆柱度误差小于0.01mm。
⑦转子上止推盘光滑、无麻点、伤痕、沟槽等缺陷，其表面粗糙度应达Ra0.80μm；整周厚度误差小于0.01mm。
⑧转子上车床进行有关部位径向跳动和端面跳动值测量，表针应与测量面垂直，测量数据应符合表1的要求。
表1 转子各部位跳动允许值 单位：mm
⑨检查并记录同一级叶片的轴向倾斜，当轴向倾斜变化较大时，应更换转子。
⑩转子在下半缸内就位后，装上主止推瓦块，将转子推向主止推侧，测量转子动叶片与静叶片的轴向间隙，所测数值应符合要求。如实测数值与要求值不符，可通过调整止推轴承的调整垫片厚度进行调整。
来源：控能动力科技
（版权归原作者或机构所有）
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Function: _error_handler
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Hangzhou Jingzhou Bearing Co.,Ltd.
Address：Liangzhu Indystrial City Hangzhou
Service hotline：0571-88777186 88777665
Jiangsu Jingzhou Bearing Co., Ltd.
Address：No.19, Yulan Avenue, Xuyi Economic DevelopmentZone, Huai’an City, Jiangsu Province
Service hotline：0517-80817777
Website：www.jzbearing.com
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