三轴燃气轮机喷水中冷循环研究  

Study of a Three-shaft Gas Turbine-based Water-spraying Inter-cooling Cycle

作　　者：董斌[1] 林枫[1] 马正军[1] 李东明[1] 

机构地区：[1]中国船舶重工集团公司第七三研究所,黑龙江哈尔滨150078

出　　处：《热能动力工程》2013年第3期234-240,321,共7页Journal of Engineering for Thermal Energy and Power

基　　金：船舶动力基础科研项目(MPRD-GT0501)

摘　　要：分析了某三轴燃气轮机喷水中冷循环性能,研究中冷喷水量与进口空气量比在0%～2%之间时主要热力参数的变化趋势。在此基础上完成该机组中冷喷水量与进口空气量比为0.45%的试验。试验结果显示,以0.8～1.0 Ne额定工况为基准,保持低压涡轮排气温度不变,可以使输出功率增加约7.5%,效率升高约1.8%(相对值),高压轴转速基本恒定,低压轴转速增加约1.8%,NOx排放量降低约10%。可见,级间喷水中冷是改善该机组性能的有效手段。Calculated was the performance of a three-shaft gas turbine-based water spraying inter-cooling cycle and studied was the variation tendency of the main parameters when the ratio of the inter-cooling water quantity sprayed and the inlet air quantity was between 0% to 2%.On this basis,a test of which the ratio of the inter-cooling water quantity sprayed and the inlet air quantity was 0.45% was conducted.The test results show that with 0.8 to 1.0 Ne of the rated load serving as the reference,when the exhaust gas temperature of the LP turbine is kept unchanged,the output power will increase by about 7.5%,the efficiency will go up by around 1.8%(relative value),the rotating speed of the HP shaft will be basically constant while that of the LP shaft will increase about 1.8%,the NOx emissions will decrease by about 10% and the non-uniformity of the temperature field at the tail portion of the turbine and the vibration parameter of the unit will be normal.It can be seen that the inter-stage water spraying and intercooling will become an effective means for improving the performance of a unit.

关 键 词：喷水中间冷却 功率热效率 压比 水气比 

分 类 号：TK479.11[动力工程及工程热物理—动力机械及工程]