****市天然气局域网建设项目可行性研究报告2013年01月****市天然气局域网建设项目可行性研究报告目录目录前言...................................................................................11总论...............................................................................21.1编制依据和编制原则...........................................................21.2项目背景、目的、必要性和可行性.....................................31.3编制范围和主要内容...........................................................51.4编制遵循的主要规范、标准和规定.....................................61.5工程概况和研究结论...........................................................72气源、市场及供配气规模...............................................132.1气源..................................................................................132.2市场..................................................................................152.3供配气规模.......................................................................293天然气输配系统概述......................................................363.1系统功能要求...................................................................363.2输配系统的组成................................................................363.3压力级制...........................................................................373.4系统流程...........................................................................384站址及总图运输.............................................................404.1站址..................................................................................404.2总图运输...........................................................................414.3总图主要工程量及技术经济指标.......................................425中压管道........................................................................475.1城区中压管道布置原则.....................................................475.2中压管道的敷设................................................................48****市燃气热力规划设计院1****市天然气局域网建设项目可行性研究报告目录5.3中压管道水力计算和管材选择..........................................505.4中压管网主要工程量.........................................................536站场工