Design, Manufacture and Maintenance of Pressure Equipment Based on Accidents Survey

来源 :中国机械工程学报 | 被引量 : 0次 | 上传用户:zhuguangpo123
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Most of the important units of pressure equipment have been manufactured successfully in China related to the national key construction projects, such as 10 million tons/year oil refinery, million tons/year ethylene, large coal chemical, etc. However, some of them failed to operate shortly after their putting into service. Some suffered severe damage even during the previous period of manufacture and installation. In this paper, cases of accident survey and failure analysis are given for some typical pressure vessels. It is found that many accidents are related to insufficient consideration of the design and manufacture of the equipment. These accidents occur fundamentally because of the Chinese design standards & codes for pressure equipment without risk or life concepts and the support from a database for potential risk existing in their dynamic service. Most designers and manufacturers are unable to make correct design, materials selection and manufacturing process all due to a lack of engineering experience. In order to avoid the repetition of the accidents and improve the safety, reliability and economy of pressure equipment, a platform is suggested for design, manufacture and maintenance of pressure equipment in China based on accidents survey. In other words, some effective precautionary measures are taken at the design and manufacture stage, and the design methodology has to be based on service life requirement and desirable risk level. At the service stage some reasonable inspection/monitoring approaches should be utilized to control risks and ensure the equipment operating safely until its desired lifespan. Finally, the basic scheme and some key technologies are briefly given for the platform construction. The concept of risk and life based design, manufacture and maintenance proposed herein has important significance for improving and perfecting the codes and standards for design, manufacture and maintenance of Chinese pressure-bearing equipment, enhancing the life and reliability of Chinese pressure-bearing equipment and promoting the development of in-service maintenance technology that combines safety and economy.
其他文献
Human cyclophilin 33 (hCyP33), found in 1996, consists of an RNA-binding domain in N-terminus, a cyclophilin domain in C-terminus and a connected part between t
The synthesis of 2, 4-diisopropyl-5,5-dimethyl-1,3-dioxane through the acetalization of isobutyraldehyde with 2, 2,4-trimethyl-1,3-pentanediol (TMPD) catalyzed
A sintering technology for preparing porous materials from sea bottom sediments was developed for use in water purification. The purpose of the present study wa
A column-switching anion-exchange chromatography method was described for the separation and determination of petroleum monosulfonates (PMS)and petroleum disulf
A novel hydrochloride quaternary ammonium salt (E)-4-(benzyloxy)-2-(cinnamo-yloxy)-N,N,N-trimethy1-4-oxobutan-1-aminium chloride(C23H29NO4Cl2,Mr=454.37)has been
A total of 11 PM2.5 samples were collected from October 2003 to October 2004 at 8 sampling sites in Beijing city.The PM2.5 concentrations are all above the PM2.
从冷藏的酱鸭中分离筛选乳酸菌,对其进行生理生化特性研究和分子学鉴定.结果表明,从冷藏酱鸭中筛选到2株优良乳酸菌,分别命名为J1、J2.结合细菌形态学、生理生化特性和16S rD
The demarcation of the Lower-Middle Triassic boundary is a disputed problem in global stratigraphic research. Lower-Middle Triassic strata of different types, f
p21Wafl/Cip1 ,best known as a broad-specificity inhibitor of cyclin/cyclin-dependent kinase complexes,can interact with various target proteins,and this ability
Flow accelerated corrosion (FAC) is the main failure cause of the secondary circuit carbon steel piping in nuclear power plants. The piping failures caused by F