Nitrogen+Syngas 308 Nov-Dec 2010
31 December 2010
Problem No. 3: Higher vibration in high pressure pipelines
In the high pressure synthesis section of a urea plant there are several high pressure pipelines prone to higher vibration. For example, the discharge lines of reciprocating high pressure ammonia and carbamate pumps or CO2 compressors and pipelines with a large pressure drop e.g. pipelines from the high pressure synthesis section to the significantly lower pressure recirculation stages. Special precautions are needed to reduce and control the vibrations in these lines and to ensure safe and reliable operation. It is not always an easy and straightforward exercise as shown by the round table discussions below.
