TENG Wei-zhong1, GUO Jun-wen1, KE Yu-jin1, et al. CHEMICAL CLEANING OF THERMODYNAMIC SYSTEM FOR 2×600 MW SUPERCRITICAL UNITS IN HUANENG QINBEI POWER PLANT[J]. Thermal Power Generation2007, (2): 73-75+78.
TENG Wei-zhong1, GUO Jun-wen1, KE Yu-jin1, et al. CHEMICAL CLEANING OF THERMODYNAMIC SYSTEM FOR 2×600 MW SUPERCRITICAL UNITS IN HUANENG QINBEI POWER PLANT[J]. Thermal Power Generation2007, (2): 73-75+78. DOI: 10.19666/j.rlfd.2007.02.023.
华能沁北电厂2×600MW超临界机组热力系统的化学清洗
摘要
针对华能沁北电厂600 MW超临界机组的特点、安装进度及环保要求
制定了相应的化学清洗方案并进行了炉前热力系统和锅炉本体除油清洗
以及凝结水、中高压给水系统和炉本体的柠檬酸清洗
钝化介质为双氧水。化学清洗后
机组的首次起动和吹管的用水量大为减少
且汽水品质合格用时短。实践表明
沁北电厂化学清洗范围、清洗工艺的选择和清洗系统的设计是合理的
清洗质量优良。
Abstract
Directing against the features of 600 MW supercritical unit in Huaneng Qinbei Power Plant
progress of its installation
and requirements of the environmental protection
a corresponding chemical cleaning scheme has been worked out
and being realized.De-oil cleaning is carried out for the thermodynamic system before furnace and the boiler proper
and citric acid cleaning being performed for the condensate system
MP and HP feed-water system
and the furnace proper.the passivation agent used to be hydrogen peroxide solution.After chemical cleaning
the water demand for first start-up of the unit and for blowing pipes has greatly decereased
the quality of steam and water to be eligible
and the required time to be short.The practice shows that the scope of chemical cleaning
selection of cleaning process
and the design of cleaning system all are reasonable