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Development of Lightweight Design and Manufacture of Heavy-Duty Pressure Vessels in China

[+] Author Affiliations
Xuedong Chen, Zhichao Fan, Yongdong Chen, Xiaohu Zhang, Jun Cui

Hefei General Machinery Research Institute Co. Ltd., Hefei, China

Jinyang Zheng

Zhejiang University, Hangzhou, China

Binan Shou

China Special Equipment Inspection and Research Institute, Beijing, China

Paper No. PVP2018-84176, pp. V01BT01A023; 12 pages
doi:10.1115/PVP2018-84176
From:
  • ASME 2018 Pressure Vessels and Piping Conference
  • Volume 1B: Codes and Standards
  • Prague, Czech Republic, July 15–20, 2018
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5159-3
  • Copyright © 2018 by ASME

abstract

In recent years, with the gradual expansion of units scale for energy industries such as oil refining, chemical and natural gas, etc. in China, pressure vessels are developing toward the large and heavy direction with the maximum wall thickness reaching hundreds of millimeters and weight exceeding one thousand tons. It not only causes huge material consumption, difficulty in manufacture and processing (even beyond current capability), but probably also lead to new failure modes and mechanisms, and significant safety risks thereby. Therefore, the lightweight design and manufacture under the premise of inherent safety has become an urgent need to break through the bottleneck of manufacturing capability and realize the material and energy conservation. In this paper, the progress of lightweight design and manufacturing technology of heavy-duty pressure vessels in recent years in China is introduced from the aspects of adjustment of material allowable strength, application of high strength steel and matching of strength and toughness, cold stretch of austenitic stainless steel, structure optimization design with multi-parameter coupling, and application of composite materials. Application cases in the construction of pressure equipments such as large hydrogenating reactors, low-temperature ethylene spherical tanks, austenitic stainless steel cryogenic vessels, butyl octanol heat exchangers, etc. are also included. Finally, some suggestions on the future research are proposed including composite pressure vessels in cryogenic environment, materials genome and additive manufacturing technologies for pressure vessels.

Copyright © 2018 by ASME

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