燃气-蒸汽联合循环机组低压主蒸汽温度突降事件分析及对策  

Analysis and Countermeasures for Sudden Temperature Drop of Low Pressure Main Steam in Gas-steam Combined Cycle Units

作　　者：谢为良 夏小勇 刘源 程途[2] Xie Weiliang;Xia Xiaoyong;Liu Yuan;Cheng Tu(Dongguan Shenzhen Energy Zhangyang Power Co.,Ltd.,Guangdong Dongguan 523000,China;Jiangsu Huadian Qishuyan Power Generation Co.,Ltd.,Jiangsu Changzhou 213011,China)

机构地区：[1]东莞深能源樟洋电力有限公司,广东东莞523000 [2]江苏华电戚墅堰发电有限公司,江苏常州213011

出　　处：《燃气轮机技术》2023年第4期69-72,共4页Gas Turbine Technology

摘　　要：本文主要描述联合循环机组运行状态的改变,机组由调峰运行到长期连续运行,因现场管道布置不合理,导致低压主蒸汽温度突降,引起汽轮机发生轻微水冲击的事件。文章分析了事件产生的原因,结合实际情况进行技术改造,给同类机型在设计初期合理进行管道安装布置提供一定的借鉴意义。This article mainly describes the changes in the operating status of the gas-steam combined cycle unit.The unit goes from peak shaving operation to long-term continuous operation,and due to unreasonable on-site pipeline layout,the temperature of the low-pressure main steam suddenly drops,causing a slight water shock event on the steam turbine.The article analyzes the causes of the incident and makes technical improvements based on the actual situation,providing certain reference significance for the reasonable pipeline installation and layout design of similar models in the early design stage.

关 键 词：水冲击 燃气-蒸汽联合循环 调峰 连续运行 

分 类 号：TK476[动力工程及工程热物理—动力机械及工程]