70 MPa加氢站高压氢气冷却器结构分析及优化

Structure Analysis and Optimization of High Pressure Hydrogen Cooler in 70 MPa Hydrogen Refueling Station

基于70 MPa加氢站工艺过程,对加氢站标准氢气冷却器提出一种窄流道、紧凑型错流氢气冷却器芯体结构,以应对其超高压、撬装式的工作特点。采用数值模拟方法对冷却器芯体结构参数进行分析与优化。结果表明:氢气孔径为6 mm的芯体体积最小,其满足强度需求的最优氢气孔水平孔心距为15 mm、交错孔垂直孔心距为12 mm,满足热负荷需求的最优氢气流通长度为260 mm。

Based on the process of 70 MPa hydrogen refueling station,a cross-flow,narrow flow channel,compact hydrogen cooler core structure was proposed to cope with its ultra-high pressure and skid-mounted working characteristics.The method of numerical simulation was used to analyze and optimize the core structure parameters.The results show that,the core with a hydrogen aperture of 6 mm has the smallest volume,and the center distance of optimal hydrogen hole’s horizontal hole is 15 mm as the strength required,the center distance of staggered hole’s vertical hole is 12 mm and the optimal hydrogen flow length to meet the thermal load demand is 260 mm.