兰州市中心城区天然气管网改扩建工程城关及七里河片区天然气工程初步设计工程号:2013-2401版次:A版共三册第一册总说明书中国市政工程西北设计研究院有限公司2013年11月设计人员签署单审定人:王锋(高级工程师)审核人:陈双庆(高级工程师)项目负责人:郑平平(工程师)工艺专业负责人:陈君君(工程师)建筑专业负责人:刘宝华(高级建筑师)结构专业负责人:刘旭东(高级工程师)自控专业负责人:鲁雅明(工程师)电气专业负责人:他维娟(工程师)给排水专业负责人:吴强民(工程师)经济专业负责人:谢伟(造价师)目录目录...................................................................1-11概述.................................................................1-11.1设计依据和设计原则............................................1-11.2工程概况......................................................1-21.3设计范围......................................................1-21.4遵循的主要标准规范............................................1-31.5主要工程量....................................................1-71.6主要技术经济指标.............................................1-101.7初步设计与可行性研究的调整变化...............................1-101.8存在的问题及建议.............................................1-112气源、城市概况及供气规模...............................................12.1气源............................................................12.2城市概况、燃气供应现状与规划....................................32.3供气规模........................................................62.4调峰储气量.....................................................103燃气输配系统设计......................................................123.1压力级制.......................................................123.2输配系统设计...................................................123.3站场设置.......................................................143.4管网布置.......................................................153.5储气方案.......................................................174站址及总图运输........................................................194.1站址...........................................................194.2总图运输.......................................................224.3主要工程量.....................................................255高压、次高压燃气管道系统..............................................265.1设计参数.......................................................265.2线路走向.......................................................265.3管线沿线穿跨越.................................................295.4管道工艺方案...................................................305.5管道敷设.......................................................395.6管道附属设施...................................................425.7管道防腐.......................................................435.8管道连接方式及检验.............................................475.9管道试验.......................................................475.10近期主要工程量.................................................496中压燃气管道系统......................................................526.1管网布置.......................................................526.2管道敷设.......................................................536.3管道穿跨越.....................................................556.4管道附属设施...................................................566.5水力计算.......