论文部分内容阅读
引言美国燃煤工业锅炉的发展与能源变化的关系是十分密切的。早在60年代以前,美国燃煤工业锅炉使用很广泛。到60年代末期,燃煤工业锅炉受到环境保护法的严格限制,很多用户从燃煤转向燃油或燃气等洁净燃料。那个时候,油气燃料不贵,而且使用方便。随着进口石油的比率增加,油价开始急剧上升。尤其是石油禁运时期,要提供足够的进口石油就更无法保证。直到八十年代末期,美国用于工业的能
Introduction The relationship between the development of coal-fired industrial boilers and energy changes in the United States is very close. As early as the 1960s, coal-fired industrial boilers in the United States were widely used. By the late 1960s, coal-fired industrial boilers were severely restricted by the Environmental Protection Act and many users turned from coal to clean fuels such as fuel or gas. At that time, oil and gas fuel is not expensive, and easy to use. With the increase in the rate of imported oil, oil prices began to rise sharply. Especially during the oil embargo, it is even more impossible to provide sufficient imported oil. Until the late 1980s, the United States was able to use it for industry