含氢天然气在家用天然气燃具上的燃烧性能测试  

Combustion performance tests of hydrogen-natural gas mixtures as fuels in domestic gas appliances

作　　者：严荣松[1,2] 高文学 张杨竣[1] 张建海 Yan Rongsong;Gao Wenxue;Zhang Yangjun;Zhang Jianhai(China Quality Supervising and Test Center For Gas Appliances, Tianjin 300384, China;North China Municipal Engineering Design ＆ Research Institute Co., Ltd., Tianjin 300074, China)

机构地区：[1]国家燃气用具质量监督检验中心 [2]中国市政工程华北设计研究总院有限公司

出　　处：《天然气工业》2018年第2期119-124,共6页Natural Gas Industry

基　　金：天津市科技计划项目"建筑燃气安全智慧终端关键技术及产品开发"(编号:16YFZCSF00480)

摘　　要：面对当前比较严峻的大气污染形势,城市燃气及相关行业都应积极向着低碳化、多元化的燃气利用方向发展。可再生电解氢作为提高天然气中可再生能源占比水平的一种替代气源,已具备一定的物质条件和技术能力。为此,基于我国现有家用燃烧器具的燃烧稳定性与互换性理论,分析了含氢天然气作为城市燃气气源的最佳比例,并基于12T基准天然气测试验证了天然气中掺混氢气后对家用燃具能效的影响。研究结果表明:(1)因不同气源天然气的华白数与热值不同,可加入氢气含量也不同,为有效解决燃气的互换性问题,并考虑气源的普适性,确定天然气中掺入氢气含量应不大于20%;(2)天然气中加入氢气后,由于热值的降低,在12T燃具上使用时会出现热工性能偏差的问题,但不会改变燃具在能效方面的表现,因此天然气中加入氢气在常规的天然气类家用燃气具上可以直接使用,不存在明显改变燃气具安全、节能和技术性能等既有状况的现象。Facing the present severe air pollution situation, the urban gas sector and all the relevant industries will have to actively turn to the trend of low-carbon and diversified gas utilization. The renewable electrolytic hydrogen, enhancing the level of natural gas in the alternative energy sources, will become a potential source for domestic gas appliances. In view of this, based on the combustion stability and gas interchangeability theories of domestic gas appliances, an analysis was made on the optimal proportion of the hydrogen-natural gas mixtures as desirable urban gas fuels, and the effects of such hydrogen blended with natural gas on the energy efficiency of appliances were also verified by the 12T reference gas test. The following conclusions were drawn. （1） Due to various Wobber indexes and different caloric values of variable gas sources, different hydrogen percentages will be necessarily blended, the maximum percent by volume of which should be no more than 20%. （2） The gas blended with such hydrogen, due to its lower caloric values, will cause the deviation of thermal performance of especially 12T reference appliances, the energy efficiency of which, however, will not be altered at all. In summary, such hydrogen-natural gas mixtures can be directly used as fuels in the conventionally-used domestic gas appliances, and no significant change has been found in gas safety, energy saving and technical performance by present.

关 键 词：天然气 氢气 替代气源 家用燃具 掺混比例 热工性能 燃气互换 适应性 能效 

分 类 号：TE626.7[石油与天然气工程—油气加工工程] TS914.232[轻工技术与工程]