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    • 6. 发明申请
    • SYSTEM FOR COMBINED CYCLE MECHANICAL DRIVE IN CRYOGENIC LIQUEFACTION PROCESSES
    • 在低温液化过程中组合循环机械驱动系统
    • WO2010053375A3
    • 2012-03-01
    • PCT/NO2009000362
    • 2009-10-16
    • HAMWORTHY GAS SYSTEMS ASHOERLYK LARSHAUKEDAL BJOERN HARALD
    • HOERLYK LARSHAUKEDAL BJOERN HARALD
    • F25J1/02F25J1/00
    • F25J1/0242F25J1/0022F25J1/005F25J1/0207F25J1/0279F25J1/0282F25J1/0283F25J1/0288F25J1/0289F25J1/029F25J1/0298F25J2230/20F25J2240/82
    • A system for producing liquefied and sub-cooled natural gas by means of a refrigeration assembly using a single phase gaseous refrigerant comprises at least two expanders; a compressor assembly; a heat exchanger assembly for heat absorption from natural gas; and a heat rejection assembly, in which the expanders are arranged in expander loops and the refrigerant to the respective expander is served in a compressed flow by means of the compressor assembly having compressors or compressor stages enabling adapted inlet and outlet pressures for the respective expander. According to the present the expanders and compressors assembly are assembled in two mechanically connected compressor and expander packages (200, 300) of which one is driven by a gas turbine (201) and the other is driven by a steam turbine (301), the steam primarily being generated by exhaust gases from the gas turbine in a waste heat recovery unit (202), and in that the expanders and compressors assemblies are distributed between the two compressor and expander packages to optimize the steam utilization and to balance the power generated by the gas turbine and the steam turbine.
    • 通过使用单相气态制冷剂的制冷组件生产液化和次冷天然气的系统包括至少两个膨胀机; 压缩机总成; 用于从天然气吸热的热交换器组件; 以及散热组件,其中膨胀器布置在膨胀机回路中,并且通过具有压缩机或压缩机级的压缩机组件将制冷剂排放到相应的膨胀器中的压缩流中,从而为相应的膨胀器提供适合的入口和出口压力。 根据本发明,膨胀器和压缩机组件组装在两个机械连接的压缩机和膨胀机组件(200,300)中,其中一个由燃气轮机(201)驱动,另一个由蒸汽轮机(301)驱动, 蒸汽主要由废热回收单元(202)中的来自燃气轮机的废气产生,并且膨胀机和压缩机组件分布在两个压缩机和膨胀机组件之间,以优化蒸汽利用并平衡由 燃气轮机和汽轮机。