天然气支干线长输管道特点及安全问题探讨

Characteristics and Safety Problems of Natural Gas Trunk Lines and Lateral Lines

天然气支干线长输管道是指连接国家级天然气输气干线和城市管网之间的区域性天然气长输管道,负责某一个省或一片区域的天然气供给,是天然气输送过程中的一个重要环节。分析了天然气支干线长输管道在管径、压力、能源安全及经济性上的特点,提出了天然气支干线长输管道在建设过程中遇到的阴极保护、路由选择、与高压电线和高速公路交叉并行等方面的典型安全问题,并对这些问题进行了分析和探讨。

For natural gas trunk lines and lateral lines,the characteristics of the pipeline diameter,gas pressure,energy safety,and economy were analyzed. The typical safety issues such as cathodic protection,routing selection,and crossing under the high-voltage lines,and over/under or parallel to highways were summarized and analyzed.