In the present study, a novel fluidized bed with the internal separato的简体中文翻译

In the present study, a novel fluid

In the present study, a novel fluidized bed with the internal separator was developed to achieve the self-sustained preheating of pulverized coal. In the developed internal fluidized bed combustor (IFBC), the pulverized coal could be heated up to 850 °C–950 °C by its partial combustion. The hot pulverized coal was fed into the furnace of pulverized coal (PC) boiler for complete combustion. Combining PC boiler with the IFBC could achieve easer ignition and reduce nitrogen oxides emission for the low-rank coal. To verify the feasibility and optimize the design and operation of the IFBC system, the cold experiments were performed in a small-scale IFBC for continuous feeding with Group A particles. The effect of superficial air velocity on the operational performance and gas-solid flow characteristics in the IFBC was investigated by electrical capacitance tomography, pressure measurement as well as visual observation. The experiments showed that, the IFBC could operate stably in the case of continuous feeding when superficial air velocity ranged from 1.5 m/s to 2.25 m/s, in which the material output rate was steady, nearly equal to the material input rate. With the increase in the superficial air velocity, more solids remained in the standpipe and the discharge pattern of standpipe shifted from the continuous discharge to the intermittent discharge, thereby resulting in the unstable operation. The solids intermittent dump referred to a typical feature of the intermittent discharge, characterized by a sawtooth function.
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结果 (简体中文) 1: [复制]
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在本研究中,一种新型的流化床与内部隔板的开发是为了实现自持预热粉煤的。在发达内部流化床燃烧器(IFBC),粉煤可通过其部分燃烧被加热到850°C-950℃。热粉煤供入粉煤(PC)锅炉的炉膛完全燃烧。结合PC锅炉与IFBC可以实现easer点火和减少对低品质煤的氮氧化物排放。要验证的可行性和优化IFBC系统的设计和操作中,冷实验是在小规模的IFBC用于连续进料与A组颗粒进行。浅表空气速度对在IFBC操作性能和气固流动特性的影响通过电容层析成像,压力测量以及目视观察调查。实验表明,该IFBC可以当空塔空气速度范围为1.5米/秒至2.25米/秒,其中,所述材料输出速率稳定,几乎等于材料输入速率在连续进料的情况下稳定地操作。与在表面空气速度的增加,更多的固体留在竖管和竖管的放电图案从连续放电转移到间歇放电,从而导致不稳定的操作。间歇转储提到的间歇放电的典型特征中的固体,其特征在于一个锯齿函数。压力测量以及视觉观察。实验表明,该IFBC可以当空塔空气速度范围为1.5米/秒至2.25米/秒,其中,所述材料输出速率稳定,几乎等于材料输入速率在连续进料的情况下稳定地操作。与在表面空气速度的增加,更多的固体留在竖管和竖管的放电图案从连续放电转移到间歇放电,从而导致不稳定的操作。间歇转储提到的间歇放电的典型特征中的固体,其特征在于一个锯齿函数。压力测量以及视觉观察。实验表明,该IFBC可以当空塔空气速度范围为1.5米/秒至2.25米/秒,其中,所述材料输出速率稳定,几乎等于材料输入速率在连续进料的情况下稳定地操作。与在表面空气速度的增加,更多的固体留在竖管和竖管的放电图案从连续放电转移到间歇放电,从而导致不稳定的操作。间歇转储提到的间歇放电的典型特征中的固体,其特征在于一个锯齿函数。25m / s的,其中,所述材料输出速率稳定,几乎等于材料输入速率。与在表面空气速度的增加,更多的固体留在竖管和竖管的放电图案从连续放电转移到间歇放电,从而导致不稳定的操作。间歇转储提到的间歇放电的典型特征中的固体,其特征在于一个锯齿函数。25m / s的,其中,所述材料输出速率稳定,几乎等于材料输入速率。与在表面空气速度的增加,更多的固体留在竖管和竖管的放电图案从连续放电转移到间歇放电,从而导致不稳定的操作。间歇转储提到的间歇放电的典型特征中的固体,其特征在于一个锯齿函数。
正在翻译中..
结果 (简体中文) 2:[复制]
复制成功!
In the present study, a novel fluidized bed with the internal separator was developed to achieve the self-sustained preheating of pulverized coal. In the developed internal fluidized bed combustor (IFBC), the pulverized coal could be heated up to 850 °C–950 °C by its partial combustion. The hot pulverized coal was fed into the furnace of pulverized coal (PC) boiler for complete combustion. Combining PC boiler with the IFBC could achieve easer ignition and reduce nitrogen oxides emission for the low-rank coal. To verify the feasibility and optimize the design and operation of the IFBC system, the cold experiments were performed in a small-scale IFBC for continuous feeding with Group A particles. The effect of superficial air velocity on the operational performance and gas-solid flow characteristics in the IFBC was investigated by electrical capacitance tomography, pressure measurement as well as visual observation. The experiments showed that, the IFBC could operate stably in the case of continuous feeding when superficial air velocity ranged from 1.5 m/s to 2.25 m/s, in which the material output rate was steady, nearly equal to the material input rate. With the increase in the superficial air velocity, more solids remained in the standpipe and the discharge pattern of standpipe shifted from the continuous discharge to the intermittent discharge, thereby resulting in the unstable operation. The solids intermittent dump referred to a typical feature of the intermittent discharge, characterized by a sawtooth function.
正在翻译中..
结果 (简体中文) 3:[复制]
复制成功!
为了实现煤粉的持续预热,本研究开发了一种新型内分离器流化床。在开发的内流化床燃烧室(IFBC)中,煤粉可通过部分燃烧加热到850℃-950℃。将热煤粉送入煤粉锅炉炉膛进行完全燃烧。PC锅炉与IFBC锅炉相结合,可使低煤阶煤更容易着火,减少氮氧化物排放。为了验证IFBC系统的可行性和优化设计与运行,在小型IFBC上进行了a组颗粒连续进料的冷态实验。通过电容层析成像、压力测量和可视化观察,研究了表观风速对IFBC运行性能和气固流动特性的影响。实验表明,当表观风速为1.5m/s~2.25m/s时,连续进料时,IFBC可以稳定运行,物料输出速率稳定,接近物料输入速率。随着表观风速的增加,立管内的固体物增多,立管的排放方式由连续排放向间歇排放转变,导致运行不稳定。固体间歇排放是指间歇排放的一个典型特征,其特点是锯齿状的功能。
正在翻译中..
 
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