This specification specifies the minimum requirements of design, manufacture, inspection and test requirements for 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.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
API 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 II “Installation”
API Std 526-2009 Flanged Steel Pressure Relief Valves
API Std 541-2004 Form-Wound Squirrel-Cage Induction Motors-500 Horsepower and Larger
API Std 546-2008 Brushless Synchronous Machines-500 kVA and Larger
API Std 547-2005 General-Purpose Form-Wound Squirrel Cage Induction Motors-250 Horsepower and Larger
API Std 613-2003 Special Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
API Std 614-2008 Lubrication, Shaft-Sealing and Oil-Control Systems and Auxiliaries
API Std 618-2007 Reciprocating Compressors for Petroleum, Chemical and Gas Industry Services
API Std 660 Shell-and-tube Heat Exchangers
API Std 677-2006 General-Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
ASME VIII 2010 Boiler & Pressure Vessel Code, Section VIII, Rules for Construction of Pressure Vessels
ASME B16.1 Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125 and 250
ASME B16.5-2009 Pipe flanges and flanged fittings (NPS 1/2~NPS 24)
ASME B16.42 Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300
ASME B16.47-2008 Large Diameter Steel Flanges NPS 26 through NPS 60
ASME B31.3-2006 Process Piping
NFPA Std 70-2011 National Electrical Code, Articles 500, 501, 502 and 504
TEMA Std-2007 Standards of the Tubular Exchanger Manufacturers Association
3 Terms and Definitions
For the purpose of this specification, the terms and definitions in Chapter 3 of API Std 618-2007 apply.
4 Alternative Design
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.
5 Basic Design
Foreword i 1 Scope 3 2 Normative References 3 3 Terms and Definitions 5 4 Alternative Design 5 5 Basic Design 5 5.1 General 5 5.2 Allowable Speeds 7 5.3 Allowable Discharge Temperature 8 5.4 Rod and Gas Loads 8 5.5 Critical speeds 8 5.6 Compressor Cylinders and Connections 8 5.7 Cylinder Cooling 9 5.8 Valves and Unloaders 10 5.9 Pistons, Piston Rods and Piston Rings 10 5.10 Crankcases, Crankshafts, Connecting Rods, Bearings and Crossheads 11 5.11 Distance Pieces 12 5.12 Packing Cases and Pressure Packing 12 5.13 Compressor Frame Lubrication System 13 5.14 Cylinder and Packing Lubrication 15 5.15 Materials 15 5.16 Noise 16 6 Accessories 17 6.1 Drivers 17 6.2 Couplings and Guards 19 6.3 Reduction Gears 19 6.4 Belt Drives 20 6.5 Mounting Plates 20 6.6 Controls and Instrumentation 20 6.7 Piping and Appurtenances 22 6.8 Intercoolers and Aftercoolers 26 6.9 Separators 26 6.10 Pulsation and Vibration Control 26 6.11 Pulsation Suppressors 27 6.12 Air Intake Filters 28 6.13 Special Tools 28 7 Inspection and Testing 28 7.1 General 29 7.2 Inspection 29 7.3 Testing 29 7.4 Inspection and Test Items, Procedures and Acceptance Criteria 29 8 Painting, Mark, Preparation for Shipment 31 8.1 Painting 31 8.2 Nameplates and Rotation Arrows 31 8.3 Mark 32 8.4 Preparation for Shipment 32 9 Guarantee 33 9.1 Mechanical Guarantee 33 9.2 Performance Guarantee 33 10 Vendor’s Data 33 10.1 General 33 10.2 Quotation Data 33 10.3 Contract Data 33 Appendix A (Informative) Referenced Scope of Suppliers 35 Appendix B (Informative) Data Sheet for Reciprocating Compressor 36 Appendix C (Informative) Materials for Major Component Parts 55 Appendix D (Informative) Piping Materials 56 Appendix E (Informative) Vendors Drawing and Data Requirements 57 Wording Explanation 60
