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介绍高温空气燃烧技术的发展历程和该技术在节能、环保方面的特征.以目前冶金行业部分应用高温空气燃烧技术企业的实际效果为依据,指出在我国应用该项技术具有巨大的节能和环保效益. 相似文献
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新型预燃式燃油燃烧器集燃油的雾化、气化、油气与空气的均匀混合以及完全燃烧于一体,直接喷射出高温、高速、无烟,无尘的纯净火焰,具有显著的节能和环保效果,介绍了该燃烧器的结构,技术和性能特点,并对其高效节能和低污染特性进行了分析。 相似文献
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用氧气取代空气进行燃烧,可显著地降低燃耗,减少废气排放和NOx形成,具有的节能和环保效益,并对氧-燃料技术的特点,节能和环保效果以及目前的应用进行了介绍。 相似文献
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ho~cuon,Recently, much attenhon has been paid to uhliZinghidly Preheated air up to l,(XX)"C through waste gas inindustrial furnaces, in which about 15% of totalnational energy in KOrea were consumed, because ofhigh efficiency of energy savings. Moreover, one ofthree major issues in the fiscal 1996," UnderstandingEnhancement of ugh TemP~ Air COmbushon" hasbeen stUdied as successive subject in the Japanesenational Project tO reduce CO, for Protechon of earth.IntrDduction of high regenera… 相似文献
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High temperature air combustion is a prospecting technology in energy saving and pollutants reduction. Numerical simulation on pulverized coal combustion and NOx emissions in high temperature air from circulating fluidized bed was presented. The down-fired combustor, taken as the calculation domain, has the diameter of 220 mm and the height of 3000 mm. 2 cases with air staging combustion are simulated. Compared the simulation results with experimental data, there is a good agreement. It is found that the combustion model and NOx formation model are applicable to simulate the pulverized coal combustion and NOx emissions in high temperature air from circulating fluidized bed. The results show that there is a uniform temperature profile along the axis of the down-fired combustor. The NOx emissions are lower than those of ordinary pulverized coal combustion, and the NOx emissions are 390 mg/m3 and 352 mg/m3 in Case 1 and Case 2, respectively. At the range of 300-600 mm below the nozzle, the NO concentration decreases, mainly resulting from some homogeneous reactions and heterogeneous reaction. NO concentration has a little increase at the position of 800 mm below the nozzle as the tertiary air supplied to the combustor at the position of 600 mm below the nozzle. 相似文献
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高温空气燃烧技术具有高效节能和低NOx排放等多重优越性,是一种新型燃烧技术。为了深入研究高温空气燃烧机理和低氮氧化物排放特性,将湍流N—S方程与扩散燃烧模型和热力型NO生成模型相结合,研究了低氧浓度条件下,燃烧参数,如燃气供应量,过量空气系数,进口空气预热温度以及进口空气氧含量对燃烧的影响,为发展高温空气燃烧技术提供了理论依据。 相似文献
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膜法富氧助燃技术在工业锅炉中的应用 总被引:7,自引:2,他引:7
膜法富氧助燃技术能用于各种燃料和大多数工业锅炉。该高新技术采用局部增氧,所需富氧量仅为所需空气量的1%-3%,而原来鼓风量和引风量均显著下降。目前该项技术在国内已推广应用了数十家,不但显著节能、增产,而且环保达标,有显著的经济效益和社会效益。 相似文献