燃气技术GasTechnology doi:10.3969/j.issn.16715152.2012.01.003
天然气管网压力能利用研究进展
华润燃气有限公司（518001）刘宗斌
口华南理工大学化学与化工学院（510640）徐文东边海军陈敏
摘
要：高压管网输送的天然气在调压过程中释放巨大的压力能，通过降压设备将这部分能量有效圆收
用于发电、天然气脱水、轻烃分离、LNG及NGH调峰、橡胶粉碑和冷床等领域。具体描述了联合循环发电和回收压力能所制得的冷能在冷库中的运用。针对天然气供气不平衡、调压站分布不集中以及能量高效利用的问题，提出了改进方案，充分利用膨胀机输出的功驱动压缩机等设备的运转，将断胀制得的冷量运用在相应的冷产业中，保证了压力能的高效利用。
关键词：高压管网天然气压力能调峰
ResearchProgressonUsingofPressureEnergyFromNaturalGas
PipelineNetwork
China Resources Gas (Holdings ) Limited Liu Zongbin
School of Chemistry and Chemical Engineering, South China University of Technology Xu Wendong, Bian Haijun, Chen Min Abstract : The natural gas in the highpressure pipeline can release tremendous pressure energy during the process of
ul pes a e suadbe aisead opdas aaa paraooar oraua a anssard ugsnfpe the areas of power generation, natural gas dehydration, hydrocarbon separation, LNG and NGH peakshaving. rubber cryogenic grinding and cold storages. The technologies of combined cycle power generation and the using of cold energy which is obtained during the process of adjusting pressure in cold storagcs are describod. In order to resolvethe problems of the nature gas supply imbalance, pressure regulating stations dispersion and using effectively of energy, some improvement suggestions are proposed, The output power of turboexpander is recovered for driving the compressor and other equipments, Cold energy obtained in the process of step-down pressure is used in the coresponding industries. These all can ensure the efficient use of pressure energy
natural gas
Keywords:highpressure pipeline network 1
绪论
能源与环境已成为世界各国关注的基本问题，迫于当今经济快速发展和环境保护的压力，作为清洁高效能源的大然气在能源结构中的比重日益加大。长距
14城市燃
：月刊
万方数据
pressure energy
peakshaving
离、大口径、高压力和网络化并逐步形成大型的供气系统已成为当前世界天然气输气管道发展的总趋势！。国外大多数天然气输气管道压力在8MPa~12MPa范围内，我国西气东输的管输压力为10MPa，一些管线设计压力在6.4MPa~7.0MPa之间2。