CNG减压卸气过程分析  

Analysis of unload gas of CNG

作　　者：石丹阳[1] 徐维广[1] 高思静[1] 

机构地区：[1]山东建筑大学热能工程学院,山东济南250101

出　　处：《节能》2012年第2期28-31,2,共4页Energy Conservation

摘　　要：CNG橇车的减压卸气过程是一个典型的非稳态过程。根据适当简化的实际气体状态方程RK方程和节流过程的绝热等焓假设,对CNG的平均节流系数进行计算分析,得出其影响因素并推荐了在不同的节流压降级制下的平均节流系数值。通过实例计算,对卸气过程分析了压力、流量和加热量的全程变化规律与影响因素,以对CNG的卸气减压设备生产进行更加优化的配置,降低生产成本。The unload gas process of CNG is a typical non-steadystate process.Based on RK equation of real gas state equation and assumption of isenthalpic and adiabatic in throttling process,the average throttle coefficient is calculated and analyzed,suitable throttle coefficient is recommended in different conditions.Calculated by example,the variation of flow and heat in the unload gas process are analyzed.Optimal allocation of throttle and heating equipment are proposed to achieve the purpose of reducing equipment costs.

关 键 词：压缩天然气(CNG) 卸气 非稳态 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]