中华人民共和国住房和城乡建设部公告

前言

1　总则

2　术语

3　输气工艺

• 3.1　一般规定

• 3.2　工艺设计

• 3.3　工艺计算与分析

• 3.4　输气管道的安全泄放

4　线路

• 4.1　线路选择

• 4.2　地区等级划分及设计系数确定

• 4.3　管道敷设

• 4.4　并行管道敷设

• 4.5　线路截断阀（室）的设置

• 4.6　线路管道防腐与保温

• 4.7　线路水工保护

• 4.8　管道标识

5　管道和管道附件的结构设计

• 5.1　管道强度和稳定性计算

• 5.2　材料

• 5.3　管道附件

6　输气站

• 6.1　输气站设置

• 6.2　站场工艺

• 6.3　压缩机组的布置及厂房设计

• 6.4　压气站工艺及辅助系统

• 6.5　压缩机组的选型及配置

• 6.6　压缩机组的安全保护

• 6.7　站内管线

• 6.8　站内管道及设备的防腐与保温

7　地下储气库地面设施

• 7.1　一般规定

• 7.2　地面工艺

• 7.3　设备选择

8　仪表与自动控制

• 8.1　一般规定

• 8.2　调度控制中心

• 8.3　站场控制系统及远程终端装置

• 8.4　输气管道监控

9　通信

10　辅助生产设施

• 10.1　供配电

• 10.2　给水排水及消防

• 10.3　采暖通风和空气调节

• 10.4　供热

11　焊接与检验、清管与试压、干燥与置换

• 11.1　焊接与检验

• 11.2　清管、测径与试压

• 11.3　干燥与置换

附录A　输气管道工艺计算

附录B　受约束的埋地直管段轴向应力计算和当量应力校核

附录C　受内压和温差共同作用下的弯头组合应力计算

附录D　敷管条件的设计参数

附录E　管道附件由膨胀引起的综合应力计算

附录F　三通和开孔补强的结构与计算

附录G　压缩机轴功率计算

附录H　管端焊接接头坡口型式

附录J　输气站及阀室爆炸危险区域划分推荐做法

附录K　埋地管道水压强度试验推荐做法

本规范用词说明

引用标准名录

1 General provisions

2 Terms

3 Gas transportation technology

• 3.1 General requirements

• 3.2 Process design

• 3.3 Process ca1culation and analysis

• 3.4 Safety relief of gas pipeline

4 Pipeline route

• 4.1 Route selection

• 4.2 Location classification and determination of design factors

• 4.3 Pipeline laying

• 4.4 Parallel pipelines

• 4.5 Setting of pipeline block valve

• 4.6 Corrosion control and heat preservation of pipeline

• 4.7 Hydraulic protection of pipeline

• 4.8 Pipeline marking

5 Structural design of pipeline and fittings

• 5.1 Calculation of pipeline strength and stability

• 5.2 Materials

• 5.3 Pipe auxiliaries

6 Gas transportation station

• 6.1 Setting of gas transportation station

• 6.2 Station process

• 6.3 Arrangement and plant house design of compressor unit

• 6.4 Process and auxiliary system of compressor station

• 6.5 Selection and configuration of compressor unit

• 6.6 Safety protection of compressor unit

• 6.7 Piping in station

• 6.8 Corrosion control and heat preservation of instation piping and equipment

7 Surface facility of underground gas storage

• 7.1 General requirements

• 7.2 Surface process

• 7.3 Selection of equipment

8 Instrumentation and automatic control

• 8.1 General provisions

• 8.2 Control center

• 8.3 Station control system and remote terminal unit

• 8.4 Monitor and control of gas pipeline

9 Communication

10 Auxiliary production facility

• 10.1 Power supply and distribution

• 10.2 Water supply and drainage and fire fighting

• 10.3 HVAC

• 10.4 Heating

11 Welding and inspection，pigging and pressure testing，drying and replacement

• 11.1 Welding and inspection

• 11.2 Pigging，caliper measuring and pressure testing

• 11.3 Drying and replacement

Appendix A Calculation of gas pipeline process

Appendix B Axial stress calculation and equivalent stress check of constrained buried straight pipeline section

Appendix C Calculation of combined stress of elbows under the combined action of internal pressureand temperature

Appendix D Design parameters of pipelinelaying condition

Appendix E Calculation of comprehensive stress resulted from pipeline fitting expansion

Appendix F Structure and calculation of tee and opening reinforcement

Appendix G Calculation of compressor shaft power

Appendix H Pipe end welding joint type

Appendix J Recommended practice of classification of explosive dangerous areas in gas transportation station and valve vault

Appendix K Recommended practice of buried pipeline hydraulic pressure strength test

Explanation of wording in thiscode

List of quoted standards