深度调峰中锅炉超低负荷稳燃技术的研究Study on Ultra-low Load Stable Combustion Technology of Boiler in Deep Peak Shaving
李剑,熊建国,童家麟,吕洪坤
LI Jian,XIONG Jianguo,TONG Jialin,LYU Hongkun
摘要(Abstract)：
为了满足火力燃煤机组深度调峰的要求,低峰时锅炉已进入超低负荷运行,仅靠传统强化燃烧稳燃燃烧器已不能满足超低负荷稳燃的要求,而使用大油枪稳燃又大幅抬升发电厂的运行成本。对此,在某330 MW机组锅炉上改造了2层微油点火燃烧器,并进行了不投大油枪超低负荷稳燃试验。结果表明,仅靠微油点火燃烧器完全可以满足超低负荷稳燃的要求,且在煤粉燃尽率可以保证的前提下,耗油量减少达95%以上,经济效益显著。
In order to meet the requirements of deep peak shaving of coal-fired units, boiler enters into ultralow load operation at low peak, and the traditional enhanced combustion stabilizing burner can no longer meet the requirement of ultra-low load stable combustion while large oil gun greatly raises the operating cost of the power plant. In view of this, the two-layer micro-oil ignition burner is modified on a 330 MW boiler,and the ultra-low load stable combustion test without large oil gun is carried out. The results show that the micro-oil ignition burner alone can completely meet the requirements of ultra-low load stable combustion, and on the premise that the pulverized coal burnout rate can be guaranteed, the fuel consumption reduction is up to 95%, and the economic benefit is remarkable.
关键词(KeyWords)：
深度调峰;超低负荷稳燃;煤粉燃尽率;耗油量
deep peak shaving;ultra-low load stable combustion;coal burnout rate;fuel consumption
基金项目(Foundation):
作者(Author):
李剑,熊建国,童家麟,吕洪坤
LI Jian,XIONG Jianguo,TONG Jialin,LYU Hongkun
DOI: 10.19585/j.zjdl.201802013
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