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 I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 DB45/T2636—2023 II11.2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.............................................................