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为了提高炼化企业氢气系统的可扩充性和简化管网结构,本文在综合考虑系统中氢阱所需求的氢气压力和纯度基础上,提出了适配氢阱需求的中间等级确定方法,并考虑氢气压缩机投资费用与标称气量的关系建立了数学规划模型。通过所建立的数学规划模型可以确定氢气分配管网中中间等级的级数、压力和氢气纯度等状态变量。本文还针对某炼化企业氢气分配系统进行了中间等级的实例分析。研究表明:氢气系统中间等级的数量和状态的设置需权衡系统的经济性和网络结构的复杂性,而中间等级数量的增加并不一定能够提高系统的经济性。
In order to improve the scalability of the hydrogen system in the refinery and to simplify the structure of the network, this paper proposes a method to determine the intermediate level of the hydrogen sink to meet the hydrogen pressure and purity required by the hydrogen trap in the system. Hydrogen compressor investment costs and nominal gas volume established mathematical programming model. Through the established mathematical programming model, we can determine the state variables such as the intermediate grade series, pressure and hydrogen purity in the hydrogen distribution pipe network. This article also for a refinery enterprise hydrogen distribution system conducted an intermediate level of instance analysis. The research shows that the quantity and state of the middle level of hydrogen system need to weigh the economy of the system and the complexity of the network structure. However, the increase of the middle level does not necessarily improve the economy of the system.