CHEN Haiping1, SHI Zhiyun1, WANG Zhongping1, et al. Thermal economy analysis on different blowdown ways for boilers[J]. Thermal power generation, 2013, 42(2): 12-15.
CHEN Haiping1, SHI Zhiyun1, WANG Zhongping1, et al. Thermal economy analysis on different blowdown ways for boilers[J]. Thermal power generation, 2013, 42(2): 12-15.DOI:
锅炉不同排污方式的热经济性分析
摘要
锅炉排污不仅影响机组的补水率
也会影响机组运行的热经济性。通过对某600MW机组锅炉运行特点的分析
定量计算了不同排污方式对机组运行热经济性的影响程度。计算表明
锅炉连续排污方式优于定期排污方式
尤其对具有蒸汽扩容器的排污系统
余热利用效果更显著。排污量需根据排污流量大小及锅炉水质进行判断。
Abstract
Boiler blowdown affects not only the unit replenishment rate
but also the thermal economy of the unit operation.The operation characteristic of a 600 MW unit boiler was analyzed to investigate the influence of different drainage modes on thermal efficiency of the unit.The results showed that
continuous blowdown was superior to periodical blowdown
especially for the boiler system with only steam expanding vessels.The blowdown flow rate needs to be determined by the boiler water.