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Pulsation control devices, such as pulsation filters, shock absorbers (including commercial patented technologies based on acoustic control technology), storage without internal parts, air choke tubes, orifice plate systems and selected pipeline layouts;

The basis of system design should consider the mutual influence of various pulsations to reduce pipeline vibration, which is beneficial to compressor performance and valve life.

1. Approximate design method

The air compressor user should specify approximate design methods for pulsation and vibration control. At the same time, we should point out whether the existing compressor and its related piping system are included in the acoustic simulation test. There are three commonly used technologies:

① Use patented or empirically designed pulsation control devices to control pulsation to meet the pulsation values ​​proposed under general operating conditions. If specified, a simple analysis of the user-side piping system of the air compressor should be performed to determine the critical piping length for resonance due to acoustic resonance. No acoustic simulation test is required.

② Use the pulsation control device and proven acoustic simulation technology to control the pulsation by controlling the frequency characteristics of the pipeline. This method includes the evaluation of the acoustic interaction between the air compressor, the pulsation control device and the pipeline, the impact of pulsation on the performance of the air compressor and the evaluation of the acoustic excitation force, and is implemented in accordance with the technology to solve harmful pulsation and vibration of the pipeline, which can Meet the requirements.

③Similar to the two methods, but mechanical analysis is performed on the air compressor inlet pipe and the pipelines connected to it, including the interaction of acoustics and vibration characteristics of the mechanical system.