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作 者:廖先伟 杨建明[2] 娄聚伟 方华伟 梁铁波[1] 严思伟 杨红发 李毅[1] 黎春梅[1] LIAO Xian-wei;YANG Jian-ming;LOU Ju-wei;FANG Hua-wei;LIANG Tie-bo;YAN Si-wei;YANG Hong-fa;LI Yi;LI Chun-mei(Key Laboratory of Nuclear Reactor System Design Technology,Nuclear Power Institute of China,Chengdu 610213,China;School of Energy and Environment,Southeast University,Nanjing 210096,China)
机构地区:[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213 [2]东南大学能源与环境学院,南京210096
出 处:《汽轮机技术》2020年第3期231-234,238,共5页Turbine Technology
摘 要:MC系统利用回热式小汽轮机能够降低中间再热机组的抽汽过热度。以MC系统为研究对象,建立了主汽轮机和小汽轮机相互耦合的全工况数学模型,基于Labview开发仿真试验平台,以试验为基础提出了系统优化方法。结果表明:MC系统中回热式小汽轮机随负荷降低存在做功溢出,需通过进汽节流来实现主机与小汽轮机相互协调;背压辅助调节功率的优化方法能够有效减少回热式小汽轮机进汽节流,从而提高MC系统的经济性。MC system can reduce the superheat of extraction in large reheat units with T-turbine,and it was analyzed in this paper.Dynamic mathematical models of main steam turbine and T-turbine were established and a simulation test platform based on Labview was built.This paper conducted some tests and proposed an optimization method of this system.The results showed that the T-turbine overloadedwhen the unit load was reduced.The inlet throttling could not be avoided.Using the backpressure to meet the power matching can reduce the throttling of the steam turbine and improve energy efficiency of MC system.
分 类 号:TM621[电气工程—电力系统及自动化]
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