Low pass filter
The addition of simple volume, the specialized low pass filter with practical size can reduce pulsation amplitudes. Even if those filter could not attenuate all pulsation frequencies, the low pass filter is a more effective pulsation control device.
To avoid Compressor Vibration
Pulsation suppression device can be designed as per pressure vessel code (ex. ASME), and its volume (low pass filter) has to be designed sufficiently to control the pulsation levels. Below figure is for typical drawing for pulsation suppression device for reciprocating compressor.
Pipe Support
Pipe support is designed as results of mechanical review and piping restraint analysis. Number of supports and location have to be considered with practical solution in order to avoid the mechanical resonance by shaking force and piping vibration.
Orifice
Orifice plate can be used at various location in piping system to reduce acoustical response at resonant frequencies. The pressure drop resulting from an orifice plate acts as acoustical damping and reduces pulsation amplitudes.
To avoid Pump Vibration
Piping engineers can design the pipe arrangement with consideration of pulsation concerns. For example, length of straight pipe and elbow radius can effect the pulsation amplitude as shown in below figures. (ex. short radius elbow (right), long radius elbow (left))
INERTANCE has a capability regarding noise and vibration engineering, and our experts are familiar with assessment of pulsation control design for piping system. For further information, contact us at (mountain@inertance.com).
INERTANCE’s related services include;
- Lateral vibration analysis
- Torsional vibration analysis
- Vibration monitoring
- Pulsation control
- Pulsation Limit
- Pulsation study for reciprocating compressor
- Pulsation study for reciprocating pump
- Engineering Calculator – Unit Conversion
- Calculator for Pipe Support Span
- Acoustic induced vibration
- Flow induced vibration
- Surge analysis (Water hammer analysis)
