自适应海底管线膨胀位移的管道终端设计及计算

摘要

In order to meet the developing of deeper-water oil & gas fields,a new pipeline end termination (PLET) with a sliding device which could adapt to the instant maximum slide about 1, 5 m caused by pipeline expansion is designed. Because the instant slide displacement caused by 35 km pipeline is 0. 995 m which is smaller than 1. 5 m,so the sliding device could stop the instant slide damaging other structure. The PLET also has a creative structure called force transfer device (FTD) which could effectively disperse the intent force from 1700 m pipeline.%为满足我国深水油气田开发的需求,设计了一种全新的管道终端(PLET).该PLET具有1套快速自适应滑移机构,最大滑移距离为1.5m,能够自适应海底管道的线膨胀位移.滑移机构能在很大程度上缓冲35 km的海底管道累积产生的0.995m瞬间膨胀位移,避免了瞬间滑动对该PLET其他结构造成破坏.此外,该PLET还有1个力转移座,在PLET的第2端安装时,为分散设定的1700m海底管道引起的集中力起到了很好的作用.