查文建
ZHA Wenjian

• 1:浙能萧山发电厂

摘要(Abstract)：

为提高机组启动经济性,在保证暖机、冲转、升负荷过程中各项参数符合要求的条件下,通过比较西门子SCC5-4000F型联合循环机组汽轮机不同的冷态启动方式,同时结合西门子逻辑中定义的暖机时间计算公式,研究分析了凝汽器压力对汽轮机冷态启动暖机时间的影响,得出凝汽器压力越高(但不能超过30 k Pa),暖机时间越短的结论,并提出了在实际运行中应注意的问题。
In order to improve startup economy of units with all parameters in warming-up, rotation impulsing and load step-up permitted, the paper analyzes impact of condenser pressure on warming-up time of cold-state startup of steam turbine by comparing different cold-sate steam turbine startup modes of SCC5-4000 F combined cycle units and combining formula for warming-up time calculation defined in Siemens logic. The paper draws a conclusion that condenser pressure is inversely proportional to warming-up time(not higher than 30kPa); moreover, it gives precautions in real operation.

关键词(KeyWords)： 联合循环机组;汽轮机;冷态启动;暖机时间;凝汽器压力
combined cycle units;turbine;cold-state startup;warming-up time;condenser pressure

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 查文建
ZHA Wenjian

DOI: 10.19585/j.zjdl.2015.05.013

参考文献(References)：

• [1]张茂义.漏入空气对凝汽器运行特性影响的研究[J].华东电力,2001(8):22-26.
• [2]张卫会,李勇.真空系统严密性试验对凝汽器冷却管受力的影响分析[J].汽轮机技术,2000,42(6):353-355.
• [3]李勇,曹祖庆.凝汽器清洁率的概念及测试方法[J].汽轮机技术,1995,37(2):73-76.