汽轮机解体报告

1、*发电有限公司#1机大修* 发电有限公司#1机大修汽轮机本体解体报告*工程有限公司2015年08月05日#1机组于2015年7月15日停机，7月22日停盘车。7月24日#1机房所有设备停运,办理工作票。7月27日揭低压外缸。7月28日揭高中压外缸。7月29日揭低压内缸。7月29日揭高中压内缸。8月2日高中压转子装车返厂。8月2日抽发电机转子。1、 解体中发现的问题1、中压进汽导汽管法兰双头螺栓拆出时1条螺栓螺纹咬死，汇报甲方后割除。螺栓图号CH01A.083.011、螺母图号CH01A.083.013，申请购买备品。更换新螺栓2、高压外缸结合面拆出时1条螺栓螺纹咬死，汇报甲方后割除，螺栓规格3

2、1/2×1260，图号CH01.019.005，螺帽规格31/2×160，图号CH01.019.146申请购买备品。并发现其相对称的个别螺栓热松时膨胀，但松不动，可能原因是螺杆长，螺帽顶到头，需在清理时测量，必要时增加新垫片。更换新螺栓3、对#1机组进行大修，在吊出盘车时，发现盘车损毁严重，其中盘车桥架变形扭曲，齿轮磨损短缺。建议返厂。更换新盘车，估计08月15日左右到厂40 *工程有限公司4、吊出轴承进行宏观检查时发现#4、#6轴承上半瓦块有明显的脱胎现象。建议更换瓦块。电厂联系补焊12345678表A表B1表B25、 低压内缸螺栓拆出时A低压内缸中分面一条螺栓螺纹咬死，

3、汇报甲方后割除，螺栓图号CH01A.027.062 。A低压内缸持环中分面一条螺栓螺帽开裂，汇报甲方后割除，螺栓图号 CH01.041.2.005-28。更换新螺栓，将持环割开的孔补焊磨平6、 低压A转子电端对轮瓢偏、晃度超标。此次不做处理A低压转子电端B1B2B1-B2A1-52.002.0002.022-61.992.00-0.012.033-71.972.01-0.042.024-81.952.02-0.071.995-11.952.03-0.081.976-21.962.03-0.071.977-31.982.02-0.041.978-41.992.01-0.031.99设计值瓢偏度0

4、.02瓢偏0.03实测值0.040.067、 测量发现#1、#2轴承与瓦套配合紧力过小。 重新调整 #1左侧0.16间隙，右侧0.16间隙（技术要求0-0.05紧力） #2左侧0.41间隙，右侧0.24间隙（技术要求0-0.05紧力）8、 高压转子弯曲度、对轮晃度、瓢偏度数值过大。12345678表A表B1表B2高压转子返厂，厂家处理位 置高压转子联轴器表测点B1B2B1-B2A151.791.85-0.062.00261.811.83-0.021.93371.831.810.021.84481.841.800.041.80511.831.810.021.83621.841.85-0.011.

5、90731.801.86-0.061.98841.791.86-0.072.02标 准瓢偏度0.02晃度A0.03最大偏差0.0550.2212345678最大弯曲度主油泵处2.002.022.012.002.002.002.002.000.01#1轴承处2.002.012.012.002.002.012.012.000.01高排处2.002.002.012.012.042.042.032.000.02高8级2.002.012.032.052.072.072.042.000.035高1级2.001.992.072.062.122.112.052.000.06中压进汽2.002.032.072.

6、102.102.092.041.990.045中压3级2.002.082.122.162.132.082.001.970.095电端轴封2.002.042.052.052.052.032.001.990.03#2轴承2.002.012.012.002.002.012.012.010.005电端对轮2.001.931.841.811.841.901.982.030.119、在检查时发现左侧高导管弹簧室顶杆不吃力。高导管恢复完成后重新调整10、 测量推力轴承推力间隙发现推力间隙过大。 进一步检查推力瓦块、推力盘找出原因进行调整 实测推力间隙0.65（技术要求0.25-0.38）11、 中压#1持环

7、左右叶顶间隙为0. 上下半合扣，检查是否变形12、开缸后发现高压外缸、持环有漏汽痕迹。请第三方检查，决定是否开槽 13、 #1轴承接触角过大更换新轴承 14、 发电机打开内端盖检查时发现母线水管固定绝缘木螺栓松动。第三方厂家处理15、 抽出发电机转子对转子初步检查时发现汽端盘车油挡、#7油挡轴颈处磨损严重。第三方厂家处理16、 发电机密封瓦椭圆度较大研磨中分面，重新配销子ABCDE椭圆度汽端空侧500.18500.20500.26500.25500.210.08汽端氢侧500.15500.25500.29500.25500.150.14励端空侧500.12500.25500.30500.225

8、00.110.19励端氢侧500.11500.17500.26500.28500.150.1717、 A、B小机解体后发现气缸中分面有漏气现象，在检查汽缸严密性时，漏气部位右0.20-0.27mm的间隙。请第三方厂家开密封槽 18、 B小机挡油环磨损严重，间隙过大更换新油环19、 #2高调阀杆与弹簧室的连接部分丝杆咬死将螺帽割掉，尽力保护好阀杆，必要时更换新阀杆20、 主油泵第三道挡油环变形，中分面错口严重更换新油环21、 A、B小机转子扬度与图纸不符此次不做处理，原数恢复 A小机 #1轴颈前扬0.42mm #2轴颈前扬0.08mm B小机 #1轴颈前扬0.50mm #2轴颈前扬0.16mm

9、图纸 #1轴颈前扬0.20mm #2轴颈后扬0.18mm22、 A、B小机轴承顶隙超标不作处理#1轴承#2轴承A小机0.38mm0.42mmB小机0.39mm0.49mm图示标准0.21-0.280.25-0.352、 相关数据记录1、 轴系扬度说明： 前扬为正，后扬为负 #1#2#3#4#5#6#7#8解对轮前+0.76+0.29+0.285-0.285解对轮后+1.14+0.80+0.79+0.33+0.22-0.25-0.085-2.12、 轴系中心低、发对轮全实缸中心（修前） 单位：mm注：表座吸发电机对轮指低压转子对轮，数小开口。低、发对轮半实缸中心（修前） 注：表座吸发电机对轮指低

10、压转子对轮，数小开口。3低、低对轮全实缸中心（修前） 单位：mm注;圆周表吸A低压转子指B低压转子，平面用内径量表，数大开口。左 右低、低对轮半实缸中心（修前） 注;圆周表吸B低压转子指A低压转子，平面用内径量表，数大开口。中、低对轮全实缸中心（修前） 单位：mm注;圆周表吸中压转子指A低压转子，平面用内径量表，数大开口。中、低对轮半实缸中心（修前） 单位：mm 注;圆周表吸中压转子指A低压转子，平面用内径量表，数大开口。3、轴承配合间隙轴承编号测量部位顶部间隙A瓦枕球铁紧力备注左侧右侧左侧右侧#1设计值0.71-0.810-0.05修前值1.001.20-0.16-0.16#2设计值0.71

11、-0.810-0.05修前值0.360.28-0.41-0.24#3设计值0.97-1.070-0.075修前值1.161.170.060.14#4设计值0.97-1.070-0.075修前值1.151.200.0750.06#5设计值0.97-1.070-0.075修前值1.281.000.020.03#6设计值0.97-1.070-0.075修前值1.501.400.020.084、 转子数据12345678表A表B1表B2高压转子 单位：mm位 置高压转子联轴器表测点B1B2B1-B2A151.791.85-0.062.00261.811.83-0.021.93371.831.810.0

12、21.84481.841.800.041.80511.831.810.021.83621.841.85-0.011.90731.801.86-0.061.98841.791.86-0.072.02标 准瓢偏度0.02晃度A0.03最大偏差0.0550.22A1A2B1B212345678BA推力盘瓢偏度测量记录 名 称测 量 位 置1-52-63-74-85-16-27-38-4修前A10.810.810.820.830.830.840.830.82B10.830.820.830.820.810.840.840.83修前A20.800.800.810.820.820.840.810.80B20

13、.840.840.830.820.820.850.840.84A1-B1-0.02-0.01-0.010.010.020-0.01-0.01A2-B2-0.04-0.04-0.0200-0.01-0.03-0.04瓢偏度（A1-B1）大-（A1-B1)小/20.02瓢偏度(A2-B2)大-(A2-B2)小/20.02高压转子椭圆度与不柱度测量#1轴颈#2轴颈X-X”Y-Y”X-X”Y-Y”测点A-A404.17404.17404.17404.17B-B404.17404.17404.17404.17C-C404.17404.17404.17404.17最大椭圆00最大锥度00高中压转子弯曲度1

14、2345678最大弯曲度主油泵处2.002.022.012.002.002.002.002.000.01#1轴承处2.002.012.012.002.002.012.012.000.01高排处2.002.002.012.012.042.042.032.000.02高8级2.002.012.032.052.072.072.042.000.035高1级2.001.992.072.062.122.112.052.000.06中压进汽2.002.032.072.102.102.092.041.990.045中压3级2.002.082.122.162.132.082.001.970.095电端轴封2.0

15、02.042.052.052.052.032.001.990.03#2轴承2.002.012.012.002.002.012.012.010.005电端对轮2.001.931.841.811.841.901.982.030.11#1低压转子晃度、瓢偏 单位：mm12345678表A表B1表B2位 置调端电端表测点B1B2B1-B2AB1B2B1-B2A151.992.00-0.012.002.002.0002.02261.992.00-0.012.001.992.00-0.012.03372.002.01-0.012.001.972.01-0.042.02482.002.02-0.022.00

16、1.952.02-0.071.99511.992.01-0.022.001.952.03-0.081.97621.982.01-0.032.001.962.03-0.071.97731.992.00-0.012.001.982.02-0.041.97841.992.00-0.012.001.992.01-0.021.99标 准瓢偏度0.02晃度A0.03瓢偏度0.02晃度A0.03最大偏差0.0100.040.06A低压转子弯曲度测量测量位置12345678最大弯曲度调端对轮2.002.002.002.002.002.002.002.000#3轴颈2.002.002.002.002.002.0

17、02.002.000前轴封2.012.012.012.012.012.012.012.010反3隔板2.002.012.012.012.002.012.012.000.005正1隔板2.012.012.012.022.022.012.012.010.005正6隔板1.992.002.002.002.002.002.002.000.005后轴封2.002.002.002.002.002.002.002.000#4轴颈2.012.002.002.002.002.002.002.000.005短轴对轮2.022.012.001.982.012.012.001.980.005电端对轮2.022.03.

18、2.021.991.971.971.971.990.0312345678表A表B1表B2#2低压转子联轴器瓢偏 单位：mm位 置调端电端表测点B1B2B1-B2B1B2B1-B2152.002.0002.002.000262.012.0101.992.00-0.01372.002.0001.992.01-0.02482.002.01-0.011.992.01-0.02512.002.01-0.011.992.01-0.02622.002.0002.002.01-0.01731.991.9902.002.000842.002.0002.002.000标 准瓢偏度0.02瓢偏度0.02最大偏差0.

19、0050.01B低压转子弯曲度测量测量位置12345678最大弯曲度调端对轮2.012.012.001.992.002.032.022.010.01#5轴颈2.012.012.012.012.002.022.022.010.005前轴封2.012.012.001.992.002.022.012.000.005反3隔板2.002.012.002.002.012.022.022.000.005正1隔板2.002.002.001.991.992.012.012.000.005正6隔板2.002.012.002.002.002.032.022.000.01后轴封2.012.022.012.002.01

20、2.022.022.010.005#6轴颈2.002.012.012.002.002.012.012.000.005电端对轮2.022.022.012.001.991.982.022.000.025、 通流间隙中压16级轴向通流间隙序号A +1.5- 0.5B +1.5- 0.5E +1.5- 0.5F +1.5- 0.5设计值测量值设计值测量值设计值测量值设计值测量值130.5029.7911.2010.7333.7034.4317.4018.75左29.7010.2734.4319.29右227.5026.438.206.7750.6051.4334.4036.43左26.516.1951

21、.4336.43右327.5026.218.205.8955.7057.43左26.496.0457.43右427.5026.678.205.6733.7035.4317.4019.73左26.536.0235.4319.79右528.5027.148.205.8851.6053.4334.3035.43左27.676.2153.4335.43右637.0034.578.206.4735.1036.43左34.577.4636.43右高压19级轴向通流间隙序号A+1.5-0.5B+1.5-0.5E+1.5-0.5F+1.5-0.5图示实测图示实测图示实测图示实测115.415.5512.411

22、.739.89.276.87.49左15.0711.439.397.67右216.416.9512.411.2710.810.116.86.38左16.5311.3110.326.58右314.915.2512.411.679.38.636.86.47左15.1312.038.756.93右414.915.2512.411.659.38.676.87.47左15.1511.398.877.47右515.415.7512.411.479.89.426.86.99左15.6311.059.706.98右616.015.2312.411.6910.49.616.86.58左16.1911.959.7

23、56.52右716.416.6312.412.09/ /左16.6311.95/右816.416.5912.411.77/6.86.54左16.5111.99/6.48右916.416.5912.412.4711.711.20/左16.5712.2711.13/右低压缸轴向通流间隙序号ABEF设计值实测值设计值实测值设计值实测值设计值实测值反向1级K=26.73±0.1327.2427.2227.5414.28 15.0014.7815.52左26.7327.2414.3115.54右反向2级28.2227.9427.2226.7226.1826.6825.1825.56左28.10

24、27.3027.4025.32右反向3级29.3229.6828.3228.2625.1826.1424.1823.98左29.3028.4026.1224.06右反向4级29.3229.9428.3228.6020.6720.60左29.8828.7420.66右反向5级3333.1029.8330.1221.6820.18左33.1029.8220.99右反向6级31.9132.10 30.9132.1018.6817.94左31.2032.1018.28右反向7级56.8256.1031.3232.10左57.1032.10右正向1级14.1813.1614.6814.0426.8227

25、.9027.3227.68左14.2014.4226.8627.22右正向2级15.6814.8814.6814.3836.8236.1035.8235.10左15.3814.4437.1035.10右正向3级18.6818.4617.6816.4437.8237.1036.8237.10左18.1417.1838.1037.10右正向4级16.6816.6215.6815.0433.3133.10左17.0615.4234.10右正向5级20.3619.8817.1915.8434.3234.10左20.8816.8035.10右正向6级19.2720.4218.2718.1031.3231

26、.10左18.4618.2632.10右正向7级44.1843.9018.6818.02左44.9018.38右公差±.低压缸轴向通流间隙序号ABEF设计值实测值设计值实测值设计值实测值设计值实测值反向1级K=31.93±0.1331.1832.4330.199.0713.099.5710.67左31.9330.6512.4710.69右反向2级33.4332.6532.4331.5120.9723.0519.9720.69左33.4131.7323.2120.29右反向3级34.5333.9933.5333.2119.9723.9918.9719.93左34.9933.5

27、724.8519.25右反向4级34.5334.1533.5333.0915.4616.27左34.4732.7716.01右反向5级38.2138.1535.0434.5116.4716.67左39.1534.5716.53右反向6级37.1238.1536.1236.3113.4714.57左38.1536.1514.27右反向7级62.0361.1536.5335.69左61.1536.15右正向1级8.979.979.478.6132.0334.1532.5331.09左9.419.2634.5931.55右正向2级10.4710.659.4710.3542.0344.3841.034

28、1.15左、10.2110.6544.1540.15右正向3级13.4713.3712.4712.6143.0345.2742.0341.15左13.7512.4745.1541.15右正向4级11.4711.9110.4711.2138.5237.87左11.4111.1338.15右正向5级15.1515.5311.9812.5139.5338.55左14.7511.7738.15右正向6级14.0613.3513.0613.3136.5337.20左14.6514.3137.15右正向7级38.9738.5113.4712.69左38.8512.95右公差±.6、 A、B小机数

29、据A小机 单位：mm 注：从机头看向泵，百分表座吸小机指向泵，数小为开口。 B小机 单位：mm 注：从机头看向泵，百分表座吸小机指向泵，数小为开口。 ( A )小机动静间隙时间： 单位：mm级数测量点数值修前修后炉侧机侧炉侧机侧第二级A2.952.90B3.143.10C4.304.85D5.195.40G6.866.85H26.6426.60第三级A2.852.63B3.062.87C4.203.90D5.305.60G6.776.70H30.0230.18第四级A3.122.74B9.238.81C4.004.20D5.805.80G7.057.00H26.6026.64第五级A3.002

30、.74B11.7811.94G6.676.60H23.6823.78第六级A2.932.98G7.117.12H18.9218.92( B )小机动静间隙时间： 单位：mm级数测量点数值修前修后炉侧机侧炉侧机侧第二级A3.933.27B3.363.33C4.904.30D5.905.40G7.417.36H26.2626.12第三级A2.953.10B3.163.70C4.204.30D5.805.90G7.097.14H30.4030.36第四级A3.363.18B9.689.62C4.504.90D6.406.10G7.307.30H26.6226.46第五级A2.743.10B11.70

31、12.04G6.786.98H22.9523.20第六级A3.173.06G7.397.53H19.1618.98A小机 单位：mm修前修后扬度推力瓦前挡油环间隙0.50推力间隙0.46轴承顶隙#1 0.38 #2 0.42B小机 单位：mm修前修后扬度推力瓦前挡油环间隙0.15推力间隙0.37轴承顶隙#1 0.39 #2 0.49A小机转子弯12345678最大弯曲度飞锤2.002.012.011.991.981.961.961.960,025#1瓦2.002.002.002.002.002.002.002.000前轴封2.002.002.002.002.002.001.992.000.00

32、5四级叶片2.001.991.991.981.981.981.991.990.01后轴封2.002.032.032.022.022.032.032.020.01#2瓦2.002.022.022.022.022.022.022.020.0112345678最大弯曲度飞锤2.002.032.062.082.082.062.022.010.04#1瓦2.002.012.012.012.012.012.012.010前轴封2.002.002.002.002.012.012.002.000.005四级叶片2.002.002.002.002.002.002.002.010.005后轴封2.002.001.

33、991.991.992.002.002.000.005#2瓦2.002.002.002.002.002.002.002.000B小机转子弯A1A2B1B212345678BA推力盘瓢偏名 称测 量 位 置1-52-63-74-85-16-27-38-4A小机A12.001.991.991.981.981.971.961.93B12.001.991.981.961.941.931.931.91A22.002.012.022.022.032.042.042.07B22.002.012.022.042.052.062.062.08A1-B1000.010.020.040.030.030.02A2-B

34、20000.020.020.020.02-0.01瓢偏度（A1-B1）大-（A1-B1)小/20.02瓢偏度(A2-B2)大-(A2-B2)小/20.015名 称测 量 位 置1-52-63-74-85-16-27-38-4B小机A12.002.002.002.002.002.002.002.00B12.002.002.002.002.002.002.002.00A22.002.002.002.012.012.002.002.00B22.002.002.002.002.002.002.002.00A1-B100000000A2-B20000.010.01000瓢偏度（A1-B1）大-（A1-B1)小/20瓢偏度(A2-B2)大-(A2-B2)小/20.0057、发电机本体间隙记录发电机本体间隙记录单位：mm间隙名称设计值修前数据修后数据上下左右上下左右汽端轴颈与轴承间隙直径间隙0.971.051.23励端轴颈与轴承间隙直径间隙0.971.051.26汽端密封支座单齿油挡间隙上1.151.35，最小0.6下0.100.15最小0左/右单侧0.640.721.100.270.45