The world first 550-MWe ultra-supercritical circulating fluidized bed 的简体中文翻译

The world first 550-MWe ultra-super

The world first 550-MWe ultra-supercritical circulating fluidized bed (CFB) boiler is designed with integrated recycle heat exchangers (INTREX) and internal solid circulation. In this research, in order to investigate the heat transfer behavior and the significance of the internal circulation, the operation characteristics of the four INTREXes as final superheaters including heat transfer coefficients and ash flow rates under different load conditions are experimentally studied. The calculation of ash circulating rate shows that as the boiler load decreases, the furnace bed temperature and the circulating ash temperature in the loop seal decrease, while the flow rate of the internal circulation and its proportion to the total solid flux increase as the boiler load decreases. In particular, under 60% load condition, the internal flow rate is found to be higher than that of external flow rate for the two INTREXes located in front of the middle sections of the furnace. This indicates that the internal circulation is of more significance in the low-load condition than in the high-load condition. The key factor determining the internal-circulation flow rate is found to be the bed pressure drop in the furnace. The phenomenon of non-uniform distribution of solid flux among INTREXes is also discussed.
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结果 (简体中文) 1: [复制]
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世界第一的550兆瓦超超临界循环流化床(CFB)锅炉的设计与集成再循环热交换器(INTREX)和内部固体循环。在这项研究中,为了调查传热行为和内部循环的意义,这四个INTREXes作为最终的过热器,包括不同负载条件下的传热系数和灰流率的操作特性进行了实验研究。的灰循环率所示的计算,随着锅炉负荷降低时,炉床的温度和在循环密封下降的循环灰温度,而内部循环的流率及其比例,以总固体通量增加作为锅炉负荷降低。特别地,在60%负载条件下,内部流率被发现是比外部流速位于炉的中间部分的前面的两个INTREXes高。这表明内部循环是在低负载状态下比在高负荷状态更重要的意义。确定内部循环流率的关键因素被发现是在炉床上的压力降。INTREXes中固体焊剂的非均匀分布的现象进行了讨论。
正在翻译中..
结果 (简体中文) 2:[复制]
复制成功!
The world first 550-MWe ultra-supercritical circulating fluidized bed (CFB) boiler is designed with integrated recycle heat exchangers (INTREX) and internal solid circulation. In this research, in order to investigate the heat transfer behavior and the significance of the internal circulation, the operation characteristics of the four INTREXes as final superheaters including heat transfer coefficients and ash flow rates under different load conditions are experimentally studied. The calculation of ash circulating rate shows that as the boiler load decreases, the furnace bed temperature and the circulating ash temperature in the loop seal decrease, while the flow rate of the internal circulation and its proportion to the total solid flux increase as the boiler load decreases. In particular, under 60% load condition, the internal flow rate is found to be higher than that of external flow rate for the two INTREXes located in front of the middle sections of the furnace. This indicates that the internal circulation is of more significance in the low-load condition than in the high-load condition. The key factor determining the internal-circulation flow rate is found to be the bed pressure drop in the furnace. The phenomenon of non-uniform distribution of solid flux among INTREXes is also discussed.
正在翻译中..
结果 (简体中文) 3:[复制]
复制成功!
世界上第一台550mwe超超临界循环流化床(CFB)锅炉采用一体化循环换热器(INTREX)和内循环固体。为了研究内循环的传热特性和意义,对四种内循环作为末级过热器的运行特性进行了实验研究,包括不同负荷下的传热系数和灰流量。灰循环率的计算表明,随着锅炉负荷的降低,炉床温度和环封内循环灰温度降低,而内循环流量及其占总固体流量的比例随着锅炉负荷的降低而增大。特别是,在60%负荷条件下,发现位于熔炉中部前面的两个Intrex的内部流量高于外部流量。这表明在低负荷条件下,内循环比在高负荷条件下更为重要。确定内循环流量的关键因素是炉内床层压降。还讨论了霸王龙之间固体通量分布不均匀的现象。
正在翻译中..
 
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