330MW汽轮机综合提效关键技术开发及工程应用  

Development and Engineering Application of Key Technologies for Efficiency Improvement of 330MW Steam Turbine

作　　者：谢标林 赵朝晖 李恩峰 杨存 张博伟 XIE Biao-lin;ZHAO Zhao-hui;LI En-feng;YANG Cun;ZHANG Bo-wei(Guoneng(Huizhou)Thermal power Co.,Ltd.,Huizhou 516000,China;Beijing Guoneng Longwei Power Generation Technology Co.,Ltd.,Beijing 100089,China)

机构地区：[1]国能(惠州)热电有限责任公司,惠州516000 [2]北京国能龙威发电技术有限公司,北京100089

出　　处：《汽轮机技术》2024年第1期67-69,共3页Turbine Technology

摘　　要：针对某电厂CC330MW三缸双排汽汽轮机缸效率偏低、上下缸温差大、汽封漏汽量大等问题,对汽轮机进行通流改造优化,包括应用进汽室-内缸一体化结构、单层中压缸设计、优化汽封型式、高效宽负荷叶片技术等。在满足多参数工业供汽的前提下,提高汽轮机各缸效率,同时机组的宽负荷运行能力和可靠性也得到显著提高。通流改造前后机组热力性能试验结果表明,优化后机组额定负荷及部分负荷工况下,综合能效提高,发电煤耗降低。Aiming at the problems of low efficiency,large temperature difference between upper and lower casing,and large steam leakage of seals,the flow-pathretrofit of a CC330MW steam turbine was carried out,applying the state-of-the-art technologies,including integrated HP steam inlet chamber-inner cylinder structure,single-layer IP casing,optimized steam seal type,and high-efficiency wide-load technology.Satisfying the supply of multi-parameter industrial steams,the turbine efficiency was improved.Meanwhile the unit wide-load operation capacity and reliability were significantly improved.The results of unit performance test before and after flow-path retrofit show that the unit efficiency is improved and the coal consumption of power supply is reduced under the rated load and partial load conditions.egulation,the adjustment time of the coal-fired power plant with steam turbine high-arranged and conventional arranged is almost the same.

关 键 词：通流改造 综合提效 高效宽负荷叶片技术 热力性能试验 

分 类 号：TM621[电气工程—电力系统及自动化]