氢气的高压海底管道输送

Transportation of Hydrogen Gas Via High Pressure Submarine Pipelines

采用管道将氢气从制氢厂输送至终端用户是氢能源运输的最好方式。挪威REINERTSEN公司进行了这项研究,用来评估在高压下将纯氢气或天然气/氢气混合物通过海底管道从陆上工厂输送至海上或海外终端用户的可行性。研究表明,高压下的氢对材料脆性和疲劳裂纹扩展有一定程度的不利影响,不利影响的程度与材料类型和焊接工艺有关,在设计和安装海底氢气输送管道或将现有天然气管道转换为氢气输送时,必须充分考虑高压氢气可能引起材料性能的变化和使用限制因素。建议建立疲劳寿命评估的相关数据库和评定试验规范,以便简化海底输氢管道的设计。

The best way to utilize hydrogen energy is to use pipelines to transport hydrogen from hydrogen production plants to end users.A study has been performed by Norway REINERTSEN to evaluate the possibilities for transporting pure hydrogen gas or natural gas/hydrogen mixtures under high pressure through a submarine pipeline from an onshore plant to an end user either offshore or overseas from where the hydrogen gas is produced.The results show that Hydrogen under high pressure has some possible detrimental effects to material brittleness and propagation of fatigue crack growth,which is closely related to the type of material and welding process.When designing and installing submarine transportation pipelines or converting existing natural gas pipelines to hydrogen gas transportation,it is necessary to fully consider the changes in material properties and usage limitations that may be caused by high-pressure hydrogen gas.It is recommended to establish a relevant database and evaluation test specifications for fatigue life assessment in order to simplify the design of submarine hydrogen transportation pipelines.