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绪言过去廿年来在提高蒸汽参数、发展和实现燃煤新技术方面进展甚少。这是因为预测未来带基本负荷的机组都将采用核燃料,同时化石燃料的价格又一直保持比较便宜之故。虽然电站高蒸汽参数机组的可靠性、可用率和运行适应性也曾受到关注,但是电力工业的蒸汽参数,却始终以169公斤/厘米~2(2400磅/英寸~2)(表压)和538/538℃(1000/1000 F)占优势。时至今日,电厂开始面临着新的问题:空气品质成了电厂设计至关重要的一方面,而烟气净化系统又带来了巨大的热效率损失。加以燃料价格上涨,使电厂不得不研究更高的蒸汽参数和其他改进机组效率的办
INTRODUCTION Less progress has been made over the past 20 years in raising steam parameters, developing and implementing new coal-fired technologies. This is because nuclear fuels are expected to be used in units with a basic load in the future, while the prices of fossil fuels have remained relatively cheap. Although the reliability, availability, and operational suitability of high-steam-turbine units have also drawn attention, the power industry’s steam parameters have been consistently measured at 169 kg / cm² (2400 psi) and 538/538 ° C (1000/1000 F) is dominant. Today, power plants are beginning to face new problems: air quality has become a crucial aspect of plant design, and flue gas cleaning systems have resulted in huge thermal efficiency losses. Increase the fuel price, so that the power plant has to study higher steam parameters and other units to improve efficiency