共查询到19条相似文献,搜索用时 114 毫秒
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水煤浆作为煤炭深加工的产品,是一种低污染、高效能的新型洁净燃料。针对水煤浆的燃料特点,分析了当前水煤浆锅炉设计与运行中存在的问题,并以35 t/h锅炉为例,着重介绍了流化悬浮燃烧水煤浆锅炉的结构特点及其技术优势,详细分析了流化悬浮燃烧锅炉如何解决水煤浆在小空间燃烧易结焦、燃烧不稳定这一难题,从而真正实现了水煤浆的低温、高效洁净燃烧,对工业锅炉洁净煤技术的发展将产生深远的影响。 相似文献
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文章在重点分析水煤浆和水煤浆锅炉技术特点的基础上,从城市区域供热的发展角度,结合实例探讨了水煤浆和水煤浆锅炉在城市区域供热中的应用可行性. 相似文献
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介绍了基于流态重构的新型水煤浆循环流化高效洁净燃烧锅炉的核心技术、锅炉关键部件的设计、锅炉及系统的技术特点。该技术能够实现煤炭燃烧中SO2和NO_x的原始排放达到国家规定的超低排放标准,投资和运行成本大大降低。最后阐述了新型水煤浆锅炉技术的发展前景。 相似文献
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水煤浆是一种新型洁净燃料.介绍了SZS10-1.25-J型锅炉的结构、设计运行参数、锅炉的工作过程和特点. 相似文献
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《能源学会志》2020,93(3):911-921
This paper presents the results of the comparative research of combustion specifics of coal-water fuel produced from low-ash and high-ash Ukrainian flame coal. The analysis shows that the effect of the ash content in the coal-water fuel on the duration of the burning of a fuel drop depends on the drop size. The full combustion time of CWF drop based on the low-ash coal can be both less and longer than that of high-ash coal under the identical conditions for different equivalent diameters of the fuel drop. This specific is explained with the domination of different physical factors during the fuel combustion process.The results of this research extend significantly our knowledge of coal-water fuel, allow understanding some issues of its combustion and are important for the design of the specialized energy facility which is used coal-water fuel as an energy source. 相似文献
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A detailed methodology is presented for the design of small-scale fluidized-bed furnaces (SSFBF) in the 15–250 kW capacity range for domestic space and hot water heating. These bubbling fluidized-bed furnaces burn a beneficiated coal-water slurry mixture, and do not have heat exchange tubes in the bed or freeboard regions. Algorithms are developed, based on this methodology, to calculate furnace design and performance parameters. The heat transfer coefficients are calculated for the dense bed and freeboard of the SSFBF. These are then compared with theoretical and experimental heat transfer coefficients in the published literature. Excellent agreement is found between those in the SSFBF and those in the literature. The finding of this work is that the methodology and the heat transfer coefficients obtained provide excellent design tools for the scale-up of bubbling fluidized-bed furnaces in the 15–250 kW range. 相似文献
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220 t/h燃油锅炉改烧水煤浆的设计与调试 总被引:1,自引:0,他引:1
介绍了茂名热电厂 2 2 0t/h燃油锅炉改烧水煤浆的改造情况 ,以及改造后燃烧水煤浆的调整试验 ,总结了水煤浆燃烧的一些经验 ,并针对存在的问题提出了改进建议。 相似文献
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《能源学会志》2020,93(5):1924-1933
Research on the combustion of coal-water fuel has grown significantly in recent years. Many experimental and numerical calculated data are available in the scientific literature. Nowadays, a large number of different models of the combustion of coal-water fuel have been developed for numerical research. However, there is no systematic generalization of all these data in the published results.This article is an attempt to fill the gap in the field of such a generalization. Simple equations are obtained based on a generalization of experimental data on the combustion of coal-water fuel for engineering applications, as well as to verify already existing and new mathematical models being developed. Those equations are basic for calculation of each stage duration of “pure” coal-water fuel (without any additions) combustion parameters in still air; they take into account all metamorphic stages of source coal, the different water content in the range of 25–50% and mineral impurities content (ash) 0.5–60% in the temperature range of the oven medium 550–1000 °C. 相似文献
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水煤浆代油燃烧技术及其应用初探 总被引:1,自引:0,他引:1
简要介绍了水煤浆代油燃烧技术(包括煤浆制备、煤浆过滤、煤浆燃烧等),并结合兰化公司原料动力厂动力车间油锅炉改造方案进行了经济评估。 相似文献