150 MW机组增设低温省煤器效果评价  

Effectiveness Analysis on the Addition of a Low-temperature Economizer to a 150 MW Unit

作　　者：王操 彭义林 田新民 Wang Cao;Peng Yilin;Tian Xinming(Hubei Electric Engineering Co., Ltd., Wuhan 430000, China)

机构地区：[1]湖北省电力勘测设计院有限公司

出　　处：《发电设备》2019年第3期220-222,共3页Power Equipment

摘　　要：为降低电厂能耗,对某150 MW机组进行了增设低温省煤器的改造,并对改造后低温省煤器和电除尘器的运行参数进行了分析。结果表明:改造后机组在满负荷时,低温省煤器的运行参数基本达到设计要求,标准煤耗降低了约2.39 g/(kW ·h),电除尘器出口粉尘平均质量浓度降低了约45%,具有良好的经济效益。To reduce the energy consumption of a 150MW power unit, a retrofit was conducted by installing a low-temperature economizer to the unit. The operation parameters of related low-temperature economizer and electrostatic precipitator (ESP) were then analyzed after the retrofit. Results show that under full load conditions after retrofit, the operation parameters of the low-temperature economizer can basically meet the design requirements;the standard coal consumption and the mean dust concentration at ESP outlet could be reduced by 2.39 g/(kW ·h) and 45% accordingly, indicating high economic benefits.

关 键 词：锅炉 排烟热损失 低温省煤器 电除尘器 热耗率 

分 类 号：TK223.33[动力工程及工程热物理—动力机械及工程] TK115