1、Rotor RepairAPI RECOMMENDED PRACTICE 687FIRST EDITION, SEPTEMBER 2001REAFFIRMED, MARCH 2015Rotor RepairDownstream SegmentAPI RECOMMENDED PRACTICE 687FIRST EDITION, SEPTEMBER 2001REAFFIRMED, MARCH 2015SPECIAL NOTESAPI publications necessarily address problems of a general nature. With respect to part
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15、et, N.W., Washington, D.C. 20005.iiiCONTENTS CHAPTER 1PageCHAPTER 1 ROTOR REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1CHAPTER 2 SPECIAL PURPOSE CENTRIFUGAL COMPRESSORS . . . . . . . . . . 2-1CHAPTER 3 SPECIAL PURPOSE AXIAL COMPRESSORS . . . . . . .
16、 . . . . . . . . . . . 3-1CHAPTER 4 SPECIAL PURPOSE STEAM TURBINES . . . . . . . . . . . . . . . . . . . . . . 4-1CHAPTER 5 SPECIAL PURPOSE GEARS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1CHAPTER 6 SPECIAL PURPOSE EXPANDERS . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . 6-1CHAPTER 7 POSITIVE DISPLACEMENT ROTARY SCREW TYPECOMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1vCONTENTSCHAPTER1ROTORREPAIRCONTENTS CHAPTER 1Page1 SCOPE/DEFINITION/REFERENCE STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . 1-11.
18、1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 Alternative Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.3 Conflicting Requirements . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.4 Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.5 Referenced Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
20、1.6 Statutory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41.7 Unit Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42 PROCESS FOR OVERHAULING AND REFURBISHING A ROTOR. . . . . .
21、 . . . . 1-42.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42.2 Typical Sequence of Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42.3 Owner Supplied Information. . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52.4 Initial Scope of Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52.5 Upgrade Alternatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . 1-52.6 Developing the Scope of Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53 SELECTION OF A REPAIR SHOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64 COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. 1-64.2 Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64.3 Electronic Drawing and Data Transmittal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64.4 Post-Shipment Review. . . . . . . . . . . . . . . . . . .
26、. . . . . . . . . . . . . . . . . . . . . . . . . . 1-65 TRANSPORT TO VENDORS SHOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-75.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-76 RECEIVING I
27、NSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-76.1 Receiving of Rotor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-76.2 Receiving Inspection . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . . . . . . . . . . . . . . . . 1-77 INSPECTION OF ASSEMBLED ROTOR, PHASE I . . . . . . . . . . . . . . . . . . . . . . . . 1-77.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-77.2 Rotor Inspection. . . . . . . .
29、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-78 INSPECTION METHODS AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-98.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30、. . . . . . . 1-98.2 Component Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-99 REPAIR PROCESSES AND NEW COMPONENT MANUFACTURE. . . . . . . . . 1-119.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31、. . . . . . . . . . . . . . 1-119.2 Shaft Restoration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-119.3 Coupling Shaft End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-129.4 Thrust Collars. . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-129.5 Shaft Sleeves and Spacers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-129.6 Radial Runouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、 . . . . . . . . . . . . . . . 1-129.7 New Component Manufacture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13iiiPage10 ROTOR ASSEMBLY AND BALANCING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1310.1 General . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1310.2 Low Speed Component Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1310.3 Low Speed Assembly Balancing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1410.4 R
35、esidual Unbalance Testing and Installation of Trim Parts . . . . . . . . . . . . . . . 1-1610.5 Balancing Equipment And Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1610.6 High Speed (At Speed) Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36、1-1611 PREPARATION FOR SHIPMENT AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . 1-1811.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1811.2 Containers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37、 . . . . . . . . . . . . . . . . . . . . . . 1-1811.3 Rotor Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1811.4 Packing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
38、912 DOCUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1912.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1912.2 Proposals . . . . . . . . . . . . . . . . . .
39、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1912.3 Contract Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1912.4 Document Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
40、 . . . . . . . 1-19APPENDIX A PROCEDURE FOR DETERMINATION OF RESIDUALUNBALANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21APPENDIX B NON-DESTRUCTIVE EXAMINATION METHODS. . . . . . . . . . . . 1-29APPENDIX C MAIN DRIVE COUPLINGS . . . . . . . . . . . .
41、. . . . . . . . . . . . . . . . . . . . 1-37APPENDIX D RESTORATION METHODS (OVERVIEW) . . . . . . . . . . . . . . . . . . . 1-49APPENDIX E FLUID FILM BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55APPENDIX F TOTAL INDICATOR READING . . . . . . . . . . . . . . . . .
42、. . . . . . . . . . . 1-63APPENDIX G VENDOR DATA DRAWING REQUIREMENTS (VDDR) . . . . . . . 1-69APPENDIX H AUDITORS CHECK LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73APPENDIX I SELECTION OF A REPAIR SHOP CHECK LIST . . . . . . . . . . . . . . 1-85APPENDIX J SHIPPING CO
43、NTAINERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-105APPENDIX K QUALITY/MANUFACTURING PLAN. . . . . . . . . . . . . . . . . . . . . .1-111APPENDIX L ANTI-FOULING/CORROSION RESISTANT/PERFORMANCEIMPROVEMENT COATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
44、7APPENDIX M EXAMPLES OF BEARING DAMAGE . . . . . . . . . . . . . . . . . . . . . .1-133Figures1.A-1 (Blank) Residual Unbalance Work Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-231.A-2 (Blank) Residual Unbalance Polar Plot Work Sheet . . . . . . . . . . . . . . . . . . . .1-241.A-3
45、 Sample Residual Unbalance Work Sheet for Left Plane. . . . . . . . . . . . . . . . .1-251.A-4 Sample Residual Unbalance Polar Plot Work Sheet for Left Plane . . . . . . . .1-261.A-5 Sample Residual Unbalance Work Sheet for Right Plane. . . . . . . . . . . . . . . .1-271.A-6 Sample Residual Unbalanc
46、e Polar Plot Work Sheet for Right Plane . . . . . . .1-28ivPage1.B-1 Steps in Liquid Penetrant Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-301.B-2 Principles of Magnetic Particle Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . .1-321.B-3 Equivalent Hard
47、ness Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-351.C-1 Hub Dimensional Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-411.C-2 Axial Pull-Up Tapered Coupling Hubs for 0.001 in. (I) per in. Diameter Interference . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-451.E-1 Preload Variations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-571.E-2 Stack Height Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49、. . . . . . .1-591.F-1 Typical Horizontal Dial Test Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-631.F-2 Proper Positioning of Contact Stylus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-641.F-3 Inclination Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-641.F-4 Roundness Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-651.J-1 Commercial Shipment Boxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1071.J-2 Steel Conta
