GB/T 41850.8-2022 Mechanical vibration—Measurement and evaluation of machine vibration—Part 8:Reciprocating compressor systems

Scope

This document establishes procedures and guidelines for the measurement and classification of mechanical vibration in reciprocating compressor systems. The defined vibration values are primarily used for the vibration classification of compressor systems and to prevent fatigue issues in components of reciprocating compressor systems (foundations, compressors, dampers, pipelines, and auxiliary equipment installed in compressor systems), excluding rotating shaft vibration. This document applies to rigidly installed reciprocating compressor systems with rated speeds ranging from 120 r/min to 1,800 r/min. The proposed overall evaluation criteria are related to the measurement methods used. This document is also used to evaluate whether machine vibration adversely affects instruments and equipment directly mounted on the machine, such as pulsation dampers and piping systems. Note: The criteria proposed in this document can also be applied to reciprocating compressors operating at speeds outside the specified range, but different evaluation criteria may be required in such cases. For machines driving reciprocating compressors, evaluation will be conducted in accordance with other parts of ISO 10816 and ISO 20816 or other relevant standards and classifications. This document does not include driving machines. The application of this document is limited when considering the impact of machine internal components, such as valves, pistons, piston rings, etc., which are unlikely to be detected through measurement. Identifying such issues may require diagnostic techniques beyond the scope of this document. The reciprocating compressor systems applicable to this document include: -- horizontal, vertical, V-type, W-type, and L-type compressors; -- fixed-speed and variable-speed compressors; -- compressors driven by electric motors, gas engines, diesel engines, and steam turbines, connected via gearboxes or flexible or rigid couplings; -- oil-free and oil-lubricated reciprocating c

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