A
Leader in Silencing for Industry
Reciprocating Compressor Silencers
Recommended Operating Velocity Limits: (See Technical Section)
|
Single Acting |
2000 to 3000 FPM |
|
Double Acting |
4000 to 5000 FPM |
|
Model |
|
| 121 | 4.4 |
Reciprocating Compressor Noise
Intake noise is predominantly low frequency. The frequency and amplitude is a function of size and speed of the compressor. Large bore, low speed reciprocating compressors will generate air-borne pulsation waves if unsilenced. This airborne pulsation may be perceivable at a considerable distance from the source.
The intake silencer size is determined by both intake slug – volume (swept volume of one cylinder), and flow velocity and allowable pressure drop.
ACFM is equal to the CFM of the compressor multiplied by the
The silencer size is determined by first calculating the slug volume and then evaluating the velocity and pressure drop. The larger of the two is the preferred selection.
| Model 121 | (SV) Slug Volume |
| 1" | 33 in3 |
| 1.5" | 70 in3 |
| 2" | 150 in3 |
| 2.5" | 245 in3 |
| 3" | 340 in3 |
| 4" | 750 in3 |
| 5" | 1150 in3 |
| 6" | 1750 in3 |
| 8" | 3950 in3 |
| 10" | 7600 in3 |
| 12" | 11500 in3 |
| 14" | 16000 in3 |
| 16" | 23500 in3 |
The preferred slug volume ratio is 10 : 1 (Silencer Volume : Slug volume).
The silencer should be installed as close as possible to the compressor inlet
(direct mount if possible).
If the pulse frequency (fundamental frequency or harmonies) couples with the piping natural mechanical, a frequency resonant response (vibration) may develop. The intake silencer will act as an atmospheric pulsation control vessel and lessen this effect.
|
|||||||||||
Made In
USA
| Home | About | Accessories | Catalog | Demo | Gallery | Pipe Chart | Representatives | Site Map | Technical | Warranty |
|
Copyright © 2009 Vibration And Noise Engineering Corporation - All rights Reserved. Charlie |
||||||||||