首页|燃用高碱煤锅炉受热面结焦及其防治研究概述

燃用高碱煤锅炉受热面结焦及其防治研究概述

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以准东煤为代表的高碱煤虽储量巨大,但火电机组掺烧高碱煤过程中造成锅炉受热面结焦问题突出,不仅降低锅炉热效率,而且严重威胁机组安全、稳定、经济运行.为解决结焦技术难题,促进高碱煤掺烧利用,对燃用高碱煤锅炉受热面结焦及其防治研究进行了综述.截至目前,国内外围绕燃煤锅炉受热面结焦特征、结焦机理、影响因素、防治措施等已经开展了广泛研究并取得了丰硕的研究成果.在控制燃煤质量、改善锅炉结构、优化锅炉运行等措施基础上,在锅炉受热面制备涂层成为防治结焦的重要技术途径.在未来研究过程中,涂层在具备突出抗结焦性能的同时,须兼具优良的耐高温、抗腐蚀、耐磨损、导热性、热疲劳等综合性能,且具有良好的制备经济性、制备效率,特别是现场适用性.
An overview of the research on heating surface coking of boilers burning high-alkali coal and its prevention
Although the reserves of high-alkali coal represented by Zhundong coal is huge,the problem of coking on heating surface of the boiler is prominent during co-firing high-alkali coals in thermal power units,which not only reduces the boiler thermal efficiency,but also seriously threatens the safe,stable and economic operation of the unit.In order to solve this problem and promote the utilization of high-alkali coal,this paper reviews the researches on coking of the heating surface of high-alkali coal boilers and the prevention.Up to now,extensive researches have been carried out at home and abroad on the characteristics of coking on the heating surface of coal-fired boilers,coking mechanism,influencing factors,prevention and control measures,and so on,and fruitful research results have been achieved.On the basis of controlling the quality of coal,improving boiler structure,and optimizing boiler operation,the preparation of coating on the heating surface of boilers has also become an important technical path for preventing and controlling coking.In the future,the coating should possess excellent comprehensive properties such as high temperature resistance,corrosion resistance,wear resistance,thermal conductivity,thermal fatigue and so on,while having outstanding coking resistance.Meanwhile,the coating also should have desirable preparation economy and preparation efficiency,especially the on-site applicability.

coal-fired boilercokingmechanismhigh-alkali coalcoating

李巍、李太江、娄正计、李志强、高壮、许冬亮、刘贺佳、周昊、李聚涛

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西安热工研究院有限公司,陕西 西安 710054

华能(天津)煤气化发电有限公司,天津 300452

河北邯峰发电有限责任公司,河北 邯郸 056200

天津华能杨柳青热电有限责任公司,天津 300380

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燃煤锅炉 结焦 机理 高碱煤 涂层

中国华能集团有限公司总部科技项目中国华能集团有限公司总部科技项目中国华能集团有限公司总部科技项目中国华能集团有限公司总部科技项目

HNKJ21-HF59HNKJ22-H78HNKJ22-HF07HNKJ22-HF02

2024

热力发电
西安热工研究院有限公司,中国电机工程学会

热力发电

CSTPCD北大核心
影响因子:0.765
ISSN:1002-3364
年,卷(期):2024.53(1)
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