For hyper-compressors safety, operation and maintenance are important characteristics to be accounted during the design for the various components as the process gas reaches pressures up to 350 MPa (50,000 psi). Special cylinder arrangements are used, practically compound pressure vessels, normally excluded by Pressure Vessels design codes, but needing very high attention. A great help is derived by the application of innovative methods of simulation and modelling. Hyper-compressor cylinder heads with axial valves are subjected to very high pressure because of the configuration. To maximize endurance of these components, special considerations regarding materials and technical procedures such as auto-frettage are usually adopted. During operation the pressure pulsations corresponding to discharge and suction influence the mode of operation. Sealing effects generate relative movement between the valve body and the cylinder head which result in the possibility of wear in the area of contact between the seals and the internal bore surface. In addition, assembly and disassembly of the valve requires careful attention to avoid damage to the inner surface.
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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4756-X
PROCEEDINGS PAPER
Experience in Operation and Reconditioning of High Pressure Cylinder Heads for Hypercompressors for LDPE Available to Purchase
Enzo Giacomelli,
Enzo Giacomelli
GE Oil & Gas, Florence, Italy
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Riccardo Fani,
Riccardo Fani
GE Oil & Gas, Florence, Italy
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Paolo Battagli,
Paolo Battagli
GE Oil & Gas, Florence, Italy
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Michele Pieraccini
Michele Pieraccini
GE Oil & Gas, Florence, Italy
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Enzo Giacomelli
GE Oil & Gas, Florence, Italy
Riccardo Fani
GE Oil & Gas, Florence, Italy
Paolo Battagli
GE Oil & Gas, Florence, Italy
Michele Pieraccini
GE Oil & Gas, Florence, Italy
Paper No:
PVP2006-ICPVT-11-93232, pp. 57-63; 7 pages
Published Online:
July 23, 2008
Citation
Giacomelli, E, Fani, R, Battagli, P, & Pieraccini, M. "Experience in Operation and Reconditioning of High Pressure Cylinder Heads for Hypercompressors for LDPE." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 5: High Pressure Technology, Nondestructive Evaluation, Pipeline Systems, Student Paper Competition. Vancouver, BC, Canada. July 23–27, 2006. pp. 57-63. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93232
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