摘要
大口径、高压力、高钢级是世界天然气管道的发展趋势,并进一步向超大输量方向发展。目前我国正在开展超大输量管道的研究工作。以新疆北天山气候环境、直径1 422 mm、压力12 MPa的天然气管道为基本条件,分析其配套快开盲板因其结构异形复杂、压力高、直径大、温度低和承受冲击载荷大等面临的技术难题。采用有限元分析与应力测试验证的方法,通过整机低温性能试验和结构优化、材料优化、发明缓冲装置等创新设计,研制出OD1422天然气管道配套2台12.6MPa、DN1550安全自锁型快开盲板,通过性能测试与工程应用,验证了产品的可靠性。
Large diameter,high pressure and high steel grade are the development trends for natural gas pipelines worldwide.Pipelinedevelops towards super-large transmission capacity.Based on the conditions of the climatic environment of Northern Tianshan Mountain inXinjiang and the natural gas pipeline with a diameter of 1422 mm and pressure of 12 MPa,the analysis was made of the technologicalbottlenecks related to the pipeline' s quick-opening closure,such as complex-shaped structure,high pressure,large diameter,lowtemperature and high impact.Two sets of 12.6 MPa DN1550 safe self-locking quick-opening closure were developed for the OD1422 Natural Gas Pipeline on the basis of such measures as adoption of finite element analysis and stress-testing verification method,low-temperature functional inspection of the whole device and innovative designs like structural optimization,material optimization and inventionof buffering device.Performance testing and engineering application confirmed the reliability of the product.
出处
《石油科技论坛》
2017年第S1期65-70,194,共7页
PETROLEUM SCIENCE AND TECHNOLOGY FORUM
基金
中国石油天然气股份有限公司科技专项"油气管道关键设备国产化"(编号:2012E-2802)
关键词
OD1422天然气管道
快开盲板
研制
应用
OD1422 Natural Gas Pipeline
quick-opening closure
research and development
application
