Detail of GB/T 16941-1997

Introduction of GB/T 16941-1997

1 Scope This standard specifies the technical requirements for the design and construction of turbo- and related types of compressors used in the process industry. It also details the documentation requirements. 2 Field of Application This standard applies to radial and axial flow turbo-compressors. It covers the minimum requirements for such compressors handling air or gas, and which have a specific compression work of more than 25000 J/kg. It is recommended that this standard be used for other turbo-compressors if this standard are required for the particular application. This standard also covers certain requirements for compressor drivers, drive equipment, lubrication and sealing liquid systems, controls, instrumentation and auxiliary equipment. The compressors to which this standard applies are not normally used for critical process applications in refineries. 3 ●References ISO 262 ISO General Purpose Metric Screw Threads - Selected Sizes for Screws, Bolts and Nuts ISO 898-1 Mechanical Properties of Fasteners - Part I: Bolts, Screws and Studs ISO 1000 SI Units and Recommendations for the Use of Their Multiples and of Certain Other Units ISO 1219 Fluid Power Systems and Components - Graphic Symbols ISO 3511 Process Measurement Control Functions and Instrumentation - Symbolic Representation Part 1: Basic Requirements; Part 2: Extension of Basic Requirements; Part 3: Detailed Symbols for Instrument Interconnection Diagrams ISO 3989-1 Acoustics - Measurement of Airborne Noise Emitted by Compressor Units Including Prime Movers - Part 1: Engineering Method for Determination of Sound Power Levels ISO 5389 Turbocompressors - Performance Test Code IEC 79 Electrical Apparatus for Explosive Gas Atmospheres IEC 85 Thermal Evaluation and Classification of Electrical Insulation VDI 2056 Verein Deutscher lngenieure: BeurteilungsmarJstlbefiir mechanische Schwingungen von Maschinen, VDI Richtlinie 2056, VDI GmbH Dusseldorf (D) 1964 4 ●Unit System SI units (i.e. international system of units) are used throughout this standard (see ISO 1000). However, in addition to SI units, this standard also uses some non-S1 units accepted by ISO 1000. These units are as follows: For pressure: bar (1 bar=105 Pa) For volume: Litre (1 Litre=10-3 m3) For time: min(1 min=60 s) For time: h (1 h=3.6×103s) For rotational speed: r/min (1 r/min=2π/60 rad/s) 5 Definitions

Contents of GB/T 16941-1997

Foreword III ISO Foreword VI 0 Introduction VII 1 Scope 2 Field of Application 3 ●References 4 ●Unit System 5 Definitions 6 ●Gas Properties 7 Basic Requirements 7.1 General 7.2 The Enquiry 7.3 The Proposal 7.4 Ratings 7.5 ●Noise Limitations 8 Compressor 8.1 General 8.2 Casing 8.3 External Forces and Moments 8.4 ●Bolted Connection 8.5 Casing Apertures for Pipe Connections 8.6 Rotor 8.7 Diaphragms, Diffusers, Guide Vane Carriers and Attached Coolers 8.8 Labyrinth Seal 8.9 Thrust Balance Piston and Balancing Line 8.10 Bearing and Bearing Housings 8.11 Shaft Seals 8.12 ●Critical Speeds 8.13 ●Vibration 8.14 Balance 8.15 Baseplate or Soleplate 8.16 Injection Devices 8.17 Rating Plates and Rotation Arrows 9 Drivers and Drive Equipment 9.1 Drivers 9.2 Gears 9.3 Couplings 10 Auxiliary Equipment 10.1 General 10.2 Gas Coolers 10.3 Silencers 10.4 Separators and Traps 10.5 Pipework (General) 10.6 Process Gas Pipework 10.7 Auxiliary Pipework 11 Lubrication and Seal Liquid Systems 11.1 General 11.2 Lubricant Reservoirs 11.3 Pumps and Drivers 11.4 Filters 11.5 Coolers 11.6 Overhead Tanks 11.7 Seal liquid Drain Traps 11.8 Accumulators 11.9 Schematics 12 Control and Instrumentation 12.1 General 12.2 Compressor Control Systems 12.3 Antisurge Control 12.4 Instrument Panel 12.5 Instruments 12.6 Normal Instrumentation 13 Data Sheets Annex A (Informative) Instructions Subject to Agreements in the Contract A1 Inspection and Tests A2 Preparation for Shipment A3 Erection and Commissioning A4 Documentation Annex B (Normative) Data Sheets