GB51261-2019：天然气液化工厂设计标准

GB51261-2019······1

1 总则······13

2 术语······14

3 基本规定······17

4 区域规划······19

5 工厂总平面布置······24

5.1 一般规定······24

52 工厂内防火间距······24

5.3 厂区大门及道路······27

6 工艺系统和装置······28

6.1 一般规定······28

6.2 工艺系统······28

6.3 装置内布置······29

6.4 材料应用及绝热、防腐······34

7 储存装卸系统······36

7.1 一般规定······36

7.2 液化天然气储存设施······36

7.3 液化天然气汽车装卸车设施······43

7.4 液化天然气灌装站······44

7.5 制冷剂、辅助产品的储存与装卸······45

8 管道布置······47

8.1 一般规定······47

8.2 管线综合布置······47

8.3 工艺及公用工程管道······49

8.4 生产污水管道······50

8.5 阀门布置······50

8.6 管道应力分析与支吊架······50

9 安全泄放设施······51

9.1 一般规定······51

9.2 可燃气体排放······53

9.3 液化烃及可燃液体排放······54

9.4 泄漏控制······54

9.5 火炬设施及全厂集中放散设施······56

10 内控系统······58

10.1 一般规定······58

10.2 过程控制系统(BPCS)······58

10.3 安全仪表系统(SIS)······59

10.4 火气系统(FGS)······60

11 电气······61

11.1 一般规定······61

11.2 爆炸危险环境······61

11.3 防雷、防静电及接地······61

12 消防设施······63

12.1 消防站······63

12.2 消防给水系统······64

12.3 干粉灭火系统······66

12.4 泡沫灭火系统······66

12.5 灭火器······67

13 给水排水······69

13.1 给水······69

13.2 排水······69

14 建(构)筑物······71

14.1 一般规定······71

14.2 建(构)筑物······73

15 供暖、通风与空气调节······74

15.1 一般规定······74

15.2 供暖······74

15.3 通风······75

15.4 空气调节······76

16 安全、环境保护与健康······77

16.1 安全······77

16.2 环境保护······77

16.3 健康······78

附录A 防火间距起算点的规定······79

本标准用词说明······80

引用标准名录······81

附: 条文说明······85

1 总则······88

2 术语······89

3 基本规定······90

4 区域规划······91

5 工厂总平面布置······94

5.1 一般规定······94

5.2 工厂内防火间距······95

5.3 厂区大门及道路······96

6 工艺系统和装置······98

6.1 一般规定······98

6.2 工艺系统······98

6.3 装置内布置······100

6.4 材料选用及绝热、防腐······103

7 储存装卸系统······105

7.1 一般规定······105

7.2 液化天然气储存设施······106

7.3 液化天然气汽车装卸车设施······114

7.4 液化天然气灌装站······114

8 管道布置······115

8.1 一般规定······115

8.2 管线综合布置······115

8.3 工艺及公用工程管道······116

8.5 阀门布置······116

8.6 管道应力分析与支吊架······116

9 安全泄放设施······118

9.1 一般规定······118

9.2 可燃气体排放······119

9.3 液化烃及可燃液体排放······120

9.4 泄漏控制······120

9.5 火炬设施及全厂集中放散设施······120

10 自控系统······122

10.1 一般规定······122

10.3 安全仪表系统(SIS)······122

11 电气······123

11.1 一般规定······123

11.2 爆炸危险环境······123

11.3 防雷、防静电及接地······123

12 消防设施······124

12.1 消防站······124

12.2 消防给水系统······124

12.3 干粉灭火系统······125

12.4 泡沫灭火系统······126

13 给水排水······127

13.2 排水······127

14 建(构)筑物······128

14.1 一般规定······128

11.2 建(构)筑物······128

15 供暖、通风与空气调节······130

15.1 一般规定······130

15.2 供暖······130

15.3 通风······131

15.4 空气调节······131