关键词: 高压加氢站, 氢气, 放空系统, 工艺设计, 安全泄放装置, 阻火方式, 管路系统, 安装布置

Abstract:

The venting system of hydrogen fuelling station is studied from the perspective of system configuration, process design and installation layout of venting system. The selection of safety valve, process design of pipeline system and vent stack are discussed. The impact of safety valve relief capacity and flame arrester setting on the entire plumbing and the vent header is demonstrated, suggestions are made for the selection of different flame arresting methods, and the installation and layout requirements of the vent system are summarized. It has been demonstrated that redundant selection of safety valves and blind use of flame arresters will increase the design requirements of the pipeline system and vent stack. In terms of design, it is recommended to reasonably select safety valves while meeting the discharge requirements. Flame arresting methods should be selected according to the application scenarios, and the overall specifications of the pipeline system and vent stack should be calculated. In terms of installation and layout, on the basis of meeting the fire prevention distance specified in the specifications, full consideration should be given to pipeline flexibility, grounding, and lightning protection requirements to ensure the safe and smooth discharge of hydrogen.

Key words: hydrogen fuelling station, hydrogen, vent system, process design, pressure relief device, flame arresting method, pipe system, installation and layout