Nicolas B
Mechanical
- May 16, 2022
- 9
Hi!
Currently, I am conducting an acoustic simulation of an existing crude oil pumping station equipped with eight single-acting Quintuplex pumps, including six in operation and two spares, each fitted with 4-inch plungers. The discharge pressure varies from 10 to 40 kg/cm2g (~140 to 570 psig)
In addition to process data, I have conducted vibration measurements at specific points along the main 10-inch discharge header.
I have utilized BOSpulse for acoustic simulation and performed modal analysis using CAESAR II to refine both the acoustic and structural models, although I am awaiting pulsation measurements for completeness.
Based on the available information, I anticipate achieving a reasonably accurate acoustic model. While I currently lack pulsation measurements, there is a correlation between measured vibration frequencies and estimated pulsation frequencies within ±3 Hz at lower frequencies.
I am evaluating potential changes to the pipe routing and/or the addition of bladder-type pressure dampeners in the discharge header. Notably, in the acoustic model, the inclusion of a dampener leads to a increase in pressure pulsations for frequencies of 4-5 Hz, resulting in up to 1.5 kg/cm2g (~21 psig) within the 10-inch header.
Have you encountered similar issues/challenges with pulsation dampeners?
Currently, I am conducting an acoustic simulation of an existing crude oil pumping station equipped with eight single-acting Quintuplex pumps, including six in operation and two spares, each fitted with 4-inch plungers. The discharge pressure varies from 10 to 40 kg/cm2g (~140 to 570 psig)
In addition to process data, I have conducted vibration measurements at specific points along the main 10-inch discharge header.
I have utilized BOSpulse for acoustic simulation and performed modal analysis using CAESAR II to refine both the acoustic and structural models, although I am awaiting pulsation measurements for completeness.
Based on the available information, I anticipate achieving a reasonably accurate acoustic model. While I currently lack pulsation measurements, there is a correlation between measured vibration frequencies and estimated pulsation frequencies within ±3 Hz at lower frequencies.
I am evaluating potential changes to the pipe routing and/or the addition of bladder-type pressure dampeners in the discharge header. Notably, in the acoustic model, the inclusion of a dampener leads to a increase in pressure pulsations for frequencies of 4-5 Hz, resulting in up to 1.5 kg/cm2g (~21 psig) within the 10-inch header.
Have you encountered similar issues/challenges with pulsation dampeners?