摘要
长输管道在试压排水过程中时常会发生气阻现象,导致排水压力大大高于理论估算值。工程实践中,应该采取措施防止气阻现象的产生,以减小试压排水的困难。文章运用流体力学的基本理论,结合塑料管水力实验和长输管道工程实践,对气阻现象进行了分析,对所谓"气阻定律"做出了否定的辨析。文章的结论对于长输管道工程的试压排水和输配水系统的正常操作具有一定的指导意义。
Air lock phenomena often happen during dewatering in long-distance pipeline pressure tests,which causes the dewatering pressure to be greater than the theoretical estimated value.In engineering practice,measures of preventing air lock phenomenon should be taken to reduce dewatering difficulty in pressure test.In this paper,air lock phenomenon is analyzed by applying the fundamental theory of fluid mechanics together with the plastic tube hydraulic experiment and the long-distance pipeline engineering practice,and the so-called 'air lock law' is discriminated as a mistake.The conclusion offers certain guidance for dewatering in long-distance pipeline pressure test and the normal operation of water supply and distribution system.
出处
《石油工程建设》
2010年第5期13-16,共4页
Petroleum Engineering Construction
关键词
长输管道
水压试验
排水
水力实验
气阻定律
long-distance pipeline
hydraulic pressure test
pipeline system
dewatering
hydraulic experiment
air lock law
