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介绍了燃气-蒸汽联合循环的基本原理、余热锅炉结构及其汽水系统,分别讨论了余热锅炉节点和接近点温差的选择、余热锅炉设计参数的选择以及余热锅炉变工况运行技术。文章可以为燃气-蒸汽联合循环中余热锅炉的设计、运行和改造提供依据。
The basic principle of gas - steam combined cycle, the structure of waste heat boiler and its steam - water system are introduced. The choice of temperature difference between heat recovery boiler nodes and approach point, the design parameters of waste heat boiler and the operation technology of waste heat boiler are discussed respectively. The article can provide the basis for the design, operation and reform of waste heat boiler in gas-steam combined cycle.