DB45/T 2636-2023 内河LNG燃料动力船舶改造技术规范

ICS47.060

CCSU06

45

广西壮族自治区地方标准

DB45/T2636—2023

内河LNG燃料动力船舶改造技术规范

TechnicalspecificationformodificationofinlandwaterwayLNGfuel

poweredvessel

2023-02-17发布2023-03-20实施

广西壮族自治区市场监督管理局  发布

DB45/T2636—2023

目次

前言...........................................................................III

1范围.................................................................................1

2规范性引用文件.......................................................................1

3术语和定义...........................................................................1

4改造通则.............................................................................2

4.1船舶适改条件和风险评估...........................................................2

4.2改造技术.........................................................................2

5LNG燃料发动机........................................................................2

5.1一般要求.........................................................................2

5.2选型要求.........................................................................2

5.3安装要求.........................................................................3

6LNG燃料储罐..........................................................................3

6.1选型.............................................................................3

6.2布置和安装.......................................................................3

6.3周边装置要求.....................................................................3

7管系设计与材料选择...................................................................3

7.1一般要求.........................................................................3

7.2设计.............................................................................4

7.3材料选择.........................................................................4

8LNG燃料围护系统......................................................................4

8.1布置要求.........................................................................4

8.2技术要求.........................................................................4

9LNG燃料供应系统......................................................................4

9.1一般要求.........................................................................4

9.2技术要求.........................................................................4

9.3LNG燃料阀门布置..................................................................4

9.4机舱外的LNG燃料供给系统.........................................................5

9.5机舱内的LNG燃料供给系统.........................................................5

10通风系统............................................................................5

10.1一般要求........................................................................5

10.2LNG燃料储罐接头处所通风改造.....................................................5

10.3机舱通风改造....................................................................6

10.4双壁管通风改造..................................................................6

11安保控制系统........................................................................6

11.1发动机运行监测、安保及控制......................................................6

I

DB45/T2636—2023

11.2供气系统监测、安保及控制........................................................6

11.3机舱与驾驶室控制................................................................6

11.4加注监测与控制..................................................................7

11.5热交换器监测与控制..............................................................7

11.6机舱监测与报警..................................................................7

11.7LNG燃料探测和火灾探测...........................................................7

12消防系统与防爆系统..................................................................8

12.1一般要求........................................................................8

12.2消防系统........................................................................8

12.3防爆系统........................................................................8

13加注系统............................................................................8

13.1一般要求........................................................................8

13.2加注管路改造要求................................................................9

14船舶改造后试验要求..................................................................9

14.1LNG燃料储罐的试验...............................................................9

14.2LNG燃料管路部件试验.............................................................9

14.3系泊试验........................................................................9

14.4航行试验........................................................................9

15LNG燃料系统操作要求.................................................................9

15.1一般要求........................................................................9

15.2LNG燃料加注前检查..............................................................10

15.3电气屏蔽接地...................................................................10

15.4LNG燃料输送....................................................................10

15.5进入围蔽处所...................................................................10

15.6LNG燃料系统的惰化和吹扫........................................................10

16图纸送审与检验.....................................................................10

16.1送审图纸和材料.................................................................10

16.2备查图纸和资料.................................................................