Deletion of Discharge Pulsation dampeners
Deletion of Discharge Pulsation dampeners
(OP)
For one of the Offshore project, for the API 675, Chemical Injection pumps. vendor has studied the requirement of the Discharge pulsation dampeners and said this is not required. I am giving the reply by the vendor below
Quote
Our process department just finalized the pulsation dampener calculation. This calculation shows that for pumps no pulsation dampeners are required . Proper system operation can be achieved without the use of a pulsation damper if the calculated volume is very small (less than 0.05 liter), the flow is very low (less than 10 l/hr) and the is less than approx. 40 barg. Because all these conditions are met for this damper, it is proposed not to install a damper because proper operation can be achieved without a damper.
Unquote
Thanks to give your views whether the vendor approach of removing the discharge pulsation dampener is correct.?
Quote
Our process department just finalized the pulsation dampener calculation. This calculation shows that for pumps no pulsation dampeners are required . Proper system operation can be achieved without the use of a pulsation damper if the calculated volume is very small (less than 0.05 liter), the flow is very low (less than 10 l/hr) and the is less than approx. 40 barg. Because all these conditions are met for this damper, it is proposed not to install a damper because proper operation can be achieved without a damper.
Unquote
Thanks to give your views whether the vendor approach of removing the discharge pulsation dampener is correct.?





RE: Deletion of Discharge Pulsation dampeners
RE: Deletion of Discharge Pulsation dampeners
Pulsation dampeners in general are mostly misapplied and ignored. There are some very interesting advances being made in this technology (I witnessed a test yesterday for this) in "real time" pulsation signature matching. Without going too deep into a proprietary prototype; the system reads pressure pulses and creates a "muting" pulse string to offset the pump pulsations. Very cool concept if it can work in the field.
RE: Deletion of Discharge Pulsation dampeners
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.