电厂#2机解体报告.docx

1、电厂#2机解体报告一、工程概况到目前主要设备的解体工作已经完成，现在将大修解体以来所发现的缺陷和修前设备测量数据情况进行汇报。二、缺陷统计与分析1.高压内缸疏水管断裂；2.低压转子前后轴颈有较深划痕；3.大机#2轴承测温孔穿孔；4.大机#3#4轴瓦钨金磨损严重；5.大机#3#4#5#6轴承顶部间隙超标；6.大机#5#6轴瓦钨金磨损严重，#5轴瓦严重脱胎；7.A小机转子叶片断裂；8.AB小机轴承顶部间隙超标；9.AB小机推力间隙超标，且瓦块厚度偏差甚大； 三、主要数据分析3.1、低压转子轴向定位数据（修前） 低压转子调端对轮端面到#3轴承座端面距离为：B排568.42mm，A排569.03mm

2、3.2、轴瓦数据（单位：mm）：3.2.1、轴瓦油挡（修前）位置上下B排A排#3修前0.750.250.400.45标准0.700.80mm0.200.30mm0.450.55mm0.450.55mm#4修前0.500.400.700.40标准0.700.80mm0.200.30mm0.450.55mm0.450.55mm#5修前1.750.150.500.50标准0.600.700.050.100.400.500.400.50#6修前1.750.601.751.10标准0.600.700.050.100.400.500.400.50#7修前2.901.501.952.15标准0.200.25

3、0.050.100.100.150.100.153.2.2、轴承顶部间隙（修前）项目顶部间隙#3#4前后前后实测值1.351.301.561.79标准值0.971.07mm#5#6前后前后实测值1.101.301.251.17标准值0.540.600.520.62上次检修的轴承顶部间隙超标0.200.30mm3.3、推力轴承在解体时，测量推力间隙为0.56mm（修前） 标准：0.250.38mm3.4、轴系中心测量（修前）：3.4.1、高中压低压转子对轮找中心： （修前全实缸） 单位mm 注：表指低压转子 设计要求：低压转子高0.10 下张口0.163.4.2、高中压低压转子对轮找中心： （修

4、前半实缸） 单位mm 3.4.3、低-发转子对轮找中心： （修前全实缸） 单位mm 注：表指低压转子设计要求：低压转子高0.05 下张口0.1523.5、油挡洼窝测量（修前） 炉 电炉3.6、低压转子跳动、飘偏测量（修前）对轮 #3轴颈 轴封 调端6、7级之间 电端6、7级之间 轴封 #4轴颈 对轮 A B C D E F G H ABCDEFGH15.505.505.505.505.505.505.505.5025.515.505.505.495.485.485.495.4935.515.505.495.495.4855.485.4855.48545.505.505.505.505.505.

5、505.495.4855.485.505.505.515.515.505.495.4765.475.505.5055.525.535.505.495.4775.475.505.4955.525.535.515.495.4785.485.505.505.5155.525.505.505.4915.505.505.505.505.505.505.505.50实测值0.0400.010.030.050.020.0150.033.7、轴承扬度（对轮解列）（修前）3.8、低压汽封间隙及通流间隙（修前）3.8.1、汽封间隙：（由前箱向后看，前箱为前）（修前） 排 汽进汽排汽级别炉侧A排设计标准前轴封第4道

6、0.850.650.700.80第3道0.550.550.450.55第2道0.600.35第1道0.500.80汽封间隙第七级1.352.902.500.05第六级1.252.001.650.05第五级1.300.951.000.05第四级1.350.85第三级1.351.20第二级1.000.901.000.05第二级1.001.00第三级1.401.251.300.05第四级1.501.251.400.05第五级1.401.251.500.05第六级0.952.201.650.05第七级1.502.652.500.05后轴封第1道0.500.500.450.55第2道0.500.45第3

7、道0.500.45第4道0.850.700.700.803.8.2、隔板围带间隙（阻汽间隙）（修前）排汽进汽排汽级别炉侧A排设计标准围带阻汽间隙第七级6.505.806.10.25第六级5.305.506.10.05第五级1.501.101.30.05第四级1.651.151.30.05第三级1.751.451.50.05第二级1.300.951.00.05第一级1.100.801.10.05第一级1.050.95第二级1.301.251.300.05第三级1.601.901.900.05第四级1.351.201.400.05第五级1.451.351.60.05第六级6.205.006.10.

8、05第七级6.605.006.10.253.8.3、低压轴向通流（进汽侧）（修前）排汽进汽排汽级数（调端）实侧值A侧炉排叶尖叶根叶根叶尖设计值实测值设计值实测值设计值实测值设计值实测值第七级33.530.533.530.5第六级31.010.532.4731.010.532.87第五级35.70.536.37300.529.17300.529.0235.70.536.82第四级290.529.17290.527.77290.527.52290.529.22第三级290.529.52290.528.27290.528.37290.529.36第二级290.528.49290.528.07290.

9、528.32290.520.72第一级290.528.92290.528.79290.529.17290.520.72第一级14.80.514.8314.80.514.6314.80.514.6314.80.514.83第二级14.80.514.7814.80.514.4314.80.514.9314.80.514.76第三级14.80.514.6314.80.513.5814.80.513.5414.80.514.96第四级14.80.514.6814.80.512.8814.80.513.2014.80.515.03第五级21.50.521.0815.80.515.7315.80.515.

10、0321.50.521.93第六级16.810.517.0816.810.5第七级19.330.519.0819.330.53.8.4、低压轴向通流（排汽侧）（修前）排汽进汽排汽级数（调端）实侧值A侧炉排叶尖叶根叶根叶尖设计值实测值设计值实测值设计值实测值设计值实测值第七级19.23.019.23.0第六级15.760.515.760.5第五级20.460.520.460.5第四级24.650.525.3824.650.525.2324.650.524.650.525.08第三级23.410.523.9823.40.524.5323.40.524.5823.410.523.88第二级23.36

11、0.523.6823.360.523.9823.360.523.7823.360.523.83第一级14.860.514.8814.850.515.4214.850.515.8314.860.515.08第一级29.060.529.7229.050.529.5229.050.529.6729.060.529.52第二级37.560.537.5737.560.538.8737.560.538.8237.560.537.72第三级37.610.537.60.539.0237.60.539.2237.610.5第四级38.850.538.850.538.850.538.850.5第五级34.660.

12、534.660.5第六级29.960.529.960.5第七级33.403.033.403.03.9转子轴颈锥度椭圆度（修前）标准：锥度0.02mm；椭圆度0.02mm；#1轴颈#2轴颈测量位置X-XY-Y椭圆度测量位置X-XY-Y椭圆度I-I304.21304.210I-I354.89354.900.01II-II304.21304.200.01II-II354.89354.890III-III304.21304.210III-III354.90354.890.01锥度0.0.01锥度0.010.01#3轴颈#4轴颈测量位置X-XY-Y椭圆度测量位置X-XY-Y椭圆度I-I481.58481

13、.580I-I481.55481.550II-II481.58481.580II-II481.54481.550.01III-III481.57481.580.01III-III481.55481.550锥度0.010锥度0.010#5轴颈#6轴颈测量位置X-XY-Y椭圆度测量位置X-XY-Y椭圆度I-I449.86449.860I-I449.95449.940.01II-II449.83449.850.02II-II449.94449.920.02III-III449.86449.840.02III-III449.92449.940.02锥度0.030.02锥度0.030.024.0、密封瓦

14、数据（修前） 标准：轴向间隙0.3060.385mm 径向间隙0.2290.279mm励端 密封瓦轴向间隙0.34mm 空侧径向间隙0.45mm 氢侧径向间隙0.32mm汽端 密封瓦轴向间隙0.32mm 空侧径向间隙0.40mm 氢侧径向间隙0.30mm4.1、发电机风扇叶片间隙 小汽机数据A小机修前数据汇总（单位：mm）A轴承数据（修前）：项目球面紧力顶部间隙#1轴承设计标准00.020.240.31实侧值0.020.47#2轴承设计标准00.020.240.31实侧值0.030.55A推力间隙（修前）：设计标准：0.300.35 实际测量：0.18A汽封间隙（修前）：（由前箱向后看，前箱为

15、前）前后级别炉侧A排设计标准前轴封第一级10.350.300.300.4020.350.1030.400.25第二级40.600.1550.500.2060.850.35第三级70.400.4580.500.5090.550.35汽封间隙第一级0.650.450.350.45第二级0.600.55第三级0.400.50第四级0.700.55第五级0.900.40第六级0.450.35后轴封第一级10.500.300.300.4020.700.2530.650.20第二级40.550.1550.650.3060.700.20A通流间隙（贴死工作面）（修前）前后级数实侧值炉侧A排叶尖叶根叶根叶尖调

16、节级2.452.302.402.50第一级1.801.801.951.85第二级2.001.801.852.10第三级1.901.801.901.85第四级4.151.651.804.20第五级4.254.254.404.05第六级4.304.60A转子跳动测量（实测值）（修前）推力瓦 轴颈 轴封 第四级 第六级 轴封 #2轴颈 对轮 A B C D E F G HABCDEFGH14.504.515.505.495.505.505.515.5024.494.515.485.485.505.505.515.5034.504.515.505.505.505.505.515.5044.504.52

17、5.505.5055.505.5055.515.5054.504.525.495.465.475.495.515.4764.504.525.505.505.505.505.505.5074.504.525.505.505.505.505.515.4984.504.505.475.465.485.505.515.5014.504.525.505.505.505.505.505.50实测值0.010.020.030.0450.030.0150.010.03A转子瓢偏测量（修前） 推力盘 调节级 第六级 对轮A B C DA（4个表）BCDA左A右|A左-A右|B左B右|B左-B右|C左C右|C左-

18、C右|D左D右|D左D右|1-54.484.490.015.525.480.045.505.520.025.515.5102-64.484.490.015.515.470.045.505.520.025.495.510.023-74.484.490.015.505.480.025.505.5005.505.5004-84.484.490.015.515.470.045.495.520.035.495.500.015-14.484.4805.515.480.035.495.520.035.495.500.016-24.484.4805.515.480.035.495.520.035.495.50

19、0.017-34.484.490.015.505.5005.505.5005.505.5008-44.504.5005.505.480.025.505.510.015.505.500实测值0.005（非工作面与工作面一样）0.020.0150.01设计值0.0150.030.030.02A轴承扬度（测量值）（修前）B小机修前数据汇总（单位：mm）B轴承数据（修前）：球面紧力顶部间隙#1轴承设计标准00.020.240.31实侧值0.10（间隙）0.38#2轴承设计标准00.020.240.31实侧值0.020.52B推力间隙（修前）：设计标准：0.300.35 实际测量：0.23B汽封间隙（修

20、前）：（由前箱向后看，前箱为前）前后级别炉侧A排设计标准前轴封第一级10.650.500.300.4020.700.6530.600.50第二级40.600.4550.500.4060.500.40第三级70.550.4080.550.5090.600.35汽封间隙第一级0.500.550.350.45第二级0.400.40第三级0.350.35第四级0.750.30第五级0.600.40第六级0.700.10后轴封第一级10.700.350.300.4020.550.5530.700.40第二级40.800.4550.750.4560.650.30B通流间隙（贴死工作面）（修前）前后实侧值炉

21、侧A排叶尖叶根叶根叶尖调节级2.832.882.932.93第一级1.681.981.731.88第二级2.082.032.032.33第三级1.681.781.832.13第四级4.281.931.934.33第五级5.183.934.184.68第六级4.234.18B转子跳动测量(实测值) （修前）推力瓦 轴颈 轴封 第四级 轴封 #2轴颈 对轮 A B C D E F G ABCDEFG15.505.505.505.505.505.505.5025.515.505.495.495.515.495.4835.515.495.495.485.525.495.4945.515.505.505.485.525.495.4955.505.505.525.535.505.505.5065.495.495.545.505.465.505.4975.495.495.565.475.405.495.50