B15-8.83/0.981型汽轮机冷态启动上下缸温差大原因分析及处理  

B15-8.83/0.981 Turbine Cold Start Large Temperature Difference between the Upper and Lower Cylinder Analysis and Treatment

作　　者：张兰勋 

机构地区：[1]中国华电集团哈尔滨发电有限公司,黑龙江哈尔滨150040

出　　处：《应用能源技术》2010年第9期43-45,共3页Applied Energy Technology

摘　　要：中国华电集团哈尔滨发电有限公司B15-8.83/0.981型汽轮机自投产以来,长期存在冷态启动上下汽缸温差过大问题。结合此类机型结构特点,分析了冷态启动导致上下汽缸温差过大原因,在机组多次启动实践中,通过优化运行操作,采取适当延长低速暖机时间、配合机组背压控制方法,有效地解决了冷态启动时上下汽缸温差过大问题。Harbin,China Huadian Group B15-8.83/0.981 Turbine Power Company Limited has been since the production start up and down a long cold cylinder temperature difference problem.Such models combine the structural characteristics of cold start result in excessive temperature difference causes the upper and lower cylinder,start practice in many units,by optimizing the operation,the appropriate extension of slow warm-up time,with the exhaust pressure control method,the effective Cold start to solve the upper and lower cylinder temperature difference problem.

关 键 词：汽轮机 冷态启动 运行操作 汽缸温差 

分 类 号：TK243.1[动力工程及工程热物理—动力机械及工程]