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循环流化床燃烧技术对我国燃煤污染控制具有举足轻重的意义。我国完全掌握了中小型循环流化床锅炉设计制造技术,在大型循环流化床燃烧技术上已经完成了首台135MWe超高压再热循环流化床锅炉的示范工程。引进的300MWe循环流化床锅炉进入示范实验阶段。超临界循环流化床锅炉是今后循环流化床燃烧技术发展极为重要的方向,是大型燃煤电站污染控制最具竞争力的技术。 相似文献
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循环流化床技术发展与应用(下) 总被引:6,自引:0,他引:6
循环流化床燃烧技术对我国燃煤污染控制具有举足轻重的意义.我国完全掌握了中小型循环流化床锅炉设计制造技术,在大型循环流化床燃烧技术上已经完成了首台135MWe超高压再热循环流化床锅炉的示范工程.引进的300MWe循环流化床锅炉进入示范实施阶段.超临界循环流化床锅炉是今后循环流化床燃烧技术发展极为重要的方向,是大型燃煤电站污染控制最具竞争力的技术. 相似文献
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循环流化床锅炉因其燃料适应性广、负荷调节性强及环保性能优良等特性在我国得到了快速发展。经过短短的十几年,我国已是世界上装机数量最多、装机容量最大的国家。目前我国300 MWe级循环流化床锅炉机组已经投运13台,单机容量最大的330 MWe循环流化床锅炉机组正在调试中,在建与拟在建的300 MWe循环流化床锅炉机组还有约50台。调查了我国目前300 MWe循环流化床锅炉机组的运行现状,并对机组的可靠性、经济性以及环保性作了全面的总结,并分析了目前机组运行中所存在的问题。能够对今后更大型机组的设计运行提供有益的参考。 相似文献
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国外从七十年代中期在鼓泡流化床技术基础上升发的循环流化床技术,经过实验室试验研究,先行机组的工业性验证,目的已日臻完善,达到商业运行水平。几台典型的100MWe级循环流化床锅炉相继并网发电,实践证明这是一项既符合环保要求又具有较高经济性的“清洁燃烧”高新技术. 笔者参加机电部组织派遣的循环流化床技术考察组,对法国、德国、芬兰的有关循环流化床锅炉设计、制造、运行情况进行了技术考察。本文将简要介绍其发展概况及2台典型的100MWe级循环流化床锅炉. 相似文献
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800MWe超临界循环流化床锅炉概念设计 总被引:5,自引:1,他引:4
常压循环流化床 (ACFB)燃烧技术是已经为国际上公认的商业化程度最好的洁净煤技术 ,但在达到较高的供电效率方面并未具有明显的优越性。超临界CFB作为下一代CFB技术 ,综合了超临界蒸汽循环高效率和循环流化床低成本 2方面的优势 ,而循环流化床条件下的热负荷分布规律使得超临界压力下水冷壁的安全性更为可靠 ,脱硫、脱硝投资及运行成本比烟气脱硫和催化还原NOx 低 ,受到人们的高度关注。总结了国内外超临界CFB锅炉研究工作的一些进展 ,详细介绍了 80 0MWe超临界CFB锅炉的概念设计。 相似文献
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回顾了循环流化床锅炉在我国从低压到超临界、从自主开发到引进技术再到二次开发的发展历程,介绍了循环流化床锅炉国外发展情况,总结了发展超临界循环流化床锅炉的技术可行性,分析了发展超临界循环流化床锅炉应注意问题. 相似文献
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Junfu LYU Hairui YANG Wen LING Li NIE Guangxi YUE Ruixin LI Ying CHEN Shilong WANG 《Frontiers in Energy》2019,13(1):114
The supercritical circulating fluidized bed (CFB) boiler, which combines the advantages of CFB combustion with low cost emission control and supercritical steam cycle with high efficiency of coal energy, is believed to be the future of CFB combustion technology. It is also of greatest importance for low rank coal utilization in China. Different from the supercritical pulverized coal boiler that has been developed more than 50 years, the supercritical CFB boiler is still a new one which requires further investigation. Without any precedentor engineering reference, Chinese researchers have conducted fundamental research, development, design of the supercritical CFB boilers independently. The design theory and key technology for supercritical CFB boiler were proposed. Key components and novel structures were invented. The first 600 MWe supercritical CFB boiler and its auxiliaries were successfully developed and demonstrated in Baima Power Plant, Shenhua Group as well as the simulator, control technology, installation technology, commissioning technology, system integration and operation technology. Compared with the 460 MWe supercritical CFB in Poland, developed in the same period and the only other supercritical one of commercial running in the word beside Baima, the 600 MWe one in Baima has a better performance. Besides, supercritical CFB boilers of 350 MWe have been developed and widely commercialized in China. In this paper, the updated progress of 660 MWe ultra-supercritical CFB boilers under development is introduced. 相似文献
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CFBC锅炉炉内多重内循环燃烧技术研究与应用 总被引:3,自引:0,他引:3
本文论述了由CFBC锅炉炉膛下部密相区内循环燃烧技术与炉膛上部稀相区空间循环燃烧技术所构成的炉内多重内循环燃烧技术的原理与结构。应用本技术所设计完成的循环流化床锅炉,具有效率高、体积小、成本低、磨损轻、动力消耗低、运行稳定、操作方便、负荷调节范围广、煤种适应性强等优点,是工业循环流化床锅炉的理想炉型。长期的运行实践证明,炉内多重内循环燃烧技术是适用于矮小燃烧空间的工业循环流化床锅炉的理想技术之一。 相似文献
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Junfu Lu Long Yu Guangxi Yue Hairui Yang Jiansheng Zhang Man Zhang Zhongming Yang 《Frontiers of Energy and Power Engineering in China》2008,2(2):134-139
The future of circulating fluidized bed (CFB) combustion technology is in raising the steam parameters to supercritical levels.
Understanding the heat flux distribution on the water wall is one of the most important issues in the design and operation
of supercritical pressure CFB boilers. In the present paper, the finite element analysis (FEA) method is adopted to predict
the heat transfer coefficient as well as the heat flux of the membrane wall and the results are validated by direct measurement
of the temperature around the tube. Studies on the horizontal heat flux distribution were conducted in three CFB boilers with
different furnace size, tube dimension and water temperature. The results are useful in supercritical pressure CFB boiler
design.
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Translated from Journal of Power Engineering, 2007, 27(3): 336–340 [译自: 动力工程] 相似文献