摘要
通过Synergi Gas模拟软件构建了某区域A、B、C、D四条在役天然气管道组成的区域管网输送工艺模型,模拟不同掺氢比例和注入点对管网总体输送能力的影响。模拟结果显示,在4.0MPa的分输压力前提下,位于下游的D线管道分输能力成为制约管网总体输氢能力的关键。同时以上游的A线作为掺氢点,则最大掺氢比例为20%,而以中游C线为掺氢点则最大掺氢比例可提升至50%。建议实际运营中可以选择距离终端用户近的接入点,以提高掺氢输送的比例。在提升掺氢比例后,为了保障终端用户的热值总量不变,需要考虑与掺氢比例相对的输量系数,以弥补氢气带来的热值缺口。
Synergi Gas simulation software is used to construct the regional pipeline network transportation process model composed of four in⁃service natural gas pipelines of A,B,C and D in a certain region,and to simulate the influence of different hydrogen blending ratios and injection points on the overall transportation capacity of the pipeline network.The simulation results show that under the premise of the distribution pressure of 4.0 MPa,the distribution capacity of the downstream line D becomes the key to restrict the overall hydrogen transport capacity of the pipeline network.When line A in the upstream is taken as the hydrogen blending point,the maximum hydrogen doping ratio is 20%,while when line C in the midstream is taken as the hydrogen blending point,the maximum hydrogen blending ratio can be increased to 50%.Therefore,it is suggested that the access point close to the end user can be selected in practical operation to improve the proportion of hydrogen blending delivery.After increasing the proportion of hydrogen incorporation,in order to ensure that the total calorie⁃value of end users remains unchanged,it is necessary to consider the transport coefficient relative to the proportion of hydrogen incorporation to make up for the calorie⁃value gap caused by hydrogen.
作者
李小龙
吴振东
朱坤峰
陈宇卿
LI Xiaolong;WU Zhendong;ZHU Kunfeng;CHEN Yuqing(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,China)
出处
《内蒙古电力技术》
2025年第1期32-38,共7页
Inner Mongolia Electric Power
基金
中国能源建设集团广东省电力设计研究院有限公司科技项目“天然气管道掺氢及掺氢燃烧应用研究”(EV10231W)
中国能源建设集团广东省电力设计研究院有限公司科技项目“天然气掺氢技术研究”(EVO6181W)。
关键词
输氢工艺
天然气管网
掺氢比例
输送能力
hydrogen transport process
natural gas pipeline network
hydrogen blending ratio
transportation capacity
