大容量锅炉大都配用直吹式制粉系统。它不象带中间储粉仓的锅炉那样,在燃烧设备与制粉系统之间具有明显可分的界限,而是制粉设备已与锅炉本体形成了一个密切相关的整体,甚至连煤场设施(例如碎煤机能否正常运转)也直接影响到锅炉的安全运行。这种新的整体概念对主、辅机的性能以及对电厂整体设计和各部件的选型配套都提出了更严、更 Most large-capacity boilers equipped with direct blowing powder system. Unlike the boilers with intermediate storage silos, which have clearly dividable boundaries between the combustion equipment and the milling system, the milling equipment has formed a closely related unit with the boiler body and even coal yard facilities (eg, Coal pulverizer normal operation) also directly affect the safe operation of the boiler. This new overall concept of the main and auxiliary machinery performance as well as the overall design of the power plant and the selection of components have put forward more stringent and more