This specification specifies the design, manufacture, inspection and test requirements of reciprocating compressor and its drivers and accessories in petrochemical industry.
This specification is applicable to the engineering design and equipment procurement of reciprocating compressor for petrochemical industry.
This specification is not applicable to power air compressor with a discharge pressure below 0.9 MPa (G), internal-combustion engine- or reciprocating steam engine-driven compressor, and small-sized high-speed compressor for oilfield. For reciprocating compressors above 31.5MPa (G) or super-pressure ones (>100MPa (G)), it may apply for reference.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this specification. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this specification are encouraged to investigate the possibility of applying the most recent editions of the documents indicated below. For any undated reference, the latest edition of the document referred to applies.
ASME Boiler & Pressure Vessel Code, Section VIII, Rules for Construction of Pressure Vessels
ASME B16.5 Pipe Flanges and Flanged Fittings NPS 1/2 through NPS 24
ASME B16.47 Large Diameter Steel Flanges NPS 26 through NPS 60
ASME B31.3 Process Piping
AH RP 520 Part I Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries, Part I “Sizing and Selection”
API RP 520 Part II Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries, Part I “Installation”
API Std 526 Flanged Steel Salty-Relief Valves
API Std 541 Form-wound Squirrel-cage Induction Motors Larger than 500 Horsepower
API Std 546 Brushless Synchronous Machines-500 kVA and Larger
API Std 614 Lubrication, Shaft Sealing, and Control-oil Systems and Auxiliaries for Petroleum, Chemical and Gas Industry Services
API Std 618-1995 Reciprocating Compressors for Petroleum, Chemical and Gas Industry Services
API Std 660 Shell-and-tube Heat Exchangers for General Refinery Services
TEMA Std Standards of the Tubular Exchanger Manufacturers Association
NFPA 70 National Electrical Code, Articles 500, 501, 502 and 504
3 Alternative Designs
The Seller may provide an alternative design which is beneficial for the parties concerned (the Buyer/the Seller) from the technology and business points of view. The alternative design provided by the Seller shall include detailed description, application achievement and the adopted standards and specifications. The Buyer shall evaluate this alternative design scheme and decide whether to adopt or not.
4 Terms and Definitions
Foreword i 1 Scope 1 2 Normative References 1 3 Alternative Designs 3 4 Terms and Definitions 3 5 Basic Design 3 5.1 General 3 5.2 Allowable Speeds 5 5.3 Allowable Discharge Temperature 5 5.4 Rod and Gas Loads 5 5.5 Critical Speeds 5 5.6 Compressor Cylinders 5 5.7 Cylinder Cooling 6 5.8 Valves and Unloaders 6 5.9 Pistons, Piston Rods and Piston Rings 6 5.10 Crankshafts, Connecting Rods, Bearings and Crossheads 7 5.11 Distance Pieces 7 5.12 Packing Cases and Pressure Packing 8 5.13 Compressor Frame Lubrication System 9 5.14 Cylinder and Packing Lubrication 11 5.15 Materials 11 5.16 Noise 11 6 Accessories 12 6.1 Drivers 12 6.2 Driven Mechanism and Parts 14 6.3 Compressor Base 14 6.4 Controls and Instrumentation 14 6.4.1 General 14 6.4.2 Control System 14 6.4.3 Local Instrument and Control Panel 14 6.4.4 Instruments 15 6.4.5 Electrical System 16 6.4.6 Vibration and Displacement Measurement 16 6.4.7 Junction Box of Instrument 16 6.5 Piping and Appurtenances 16 6.5.1 General 16 6.5.2 Auxiliary Pipeline 18 6.6 Intercooler and Aftercooler 19 6.7 Pulsation and Vibration Control 19 6.7.1 Design Methods 19 6.7.2 Pulsation Suppressors 20 6.8 Special Tools 20 7 Inspection and Testing 20 7.1 General 20 7.2 Inspection 21 7.3 Testing 21 7.4 Inspection and Test Items, Procedures and Acceptance Criteria 21 7.5 Mechanical Operating Test Procedure and Inspection Content 22 8 Painting, Mark, Preparation for Shipment 23 8.1 Painting 23 8.2 Nameplates and Rotation Arrows 23 8.3 Mark 24 8.4 Packaging and Shipment 24 9 Guarantee 24 9.1 Mechanical Guarantee 24 9.2 Performance Guarantee 25 10 Seller’s Data 25 10.1 General 25 10.2 Quotation Data 25 10.3 Contract Data 25 Appendix A (Informative) Referenced Scope of Suppliers 26 Appendix B (Informative) Data Sheet for Reciprocating Compressor 27 Appendix C (Informative) Materials for Major Component Parts 37 Appendix D (Informative) Supplementary Normative References 38 Appendix E (Informative) Comparison of Piping Materials 39 Appendix F (Informative) Drawings and Data to Be Supplied by the Seller 40 Wording Explanation 43
