一、前言锅炉是实现能源转换的动力设备。烧煤锅炉把煤炭转换为具有一定参数的蒸汽,从而提供二次能源。蒸汽的压力是一项重要的工艺参数,在锅炉正常运行的情况下,蒸汽的压力的改变表明锅炉生产的蒸汽量与负荷设备对蒸汽的消耗量不平衡,因此需要改变燃料的供应量,以改变锅炉的发热量,由此改变蒸汽的供应量,使锅炉和负荷设备对蒸汽 First, the foreword Boiler is to achieve energy conversion power equipment. Coal-fired boilers convert coal into steam with a certain amount of energy, thereby providing secondary energy. The pressure of steam is an important process parameter. In the normal operation of the boiler, the change of the pressure of the steam indicates that the amount of steam produced by the boiler is not balanced with the consumption of steam by the load equipment. Therefore, the supply of fuel needs to be changed to Change the boiler heat, thereby changing the supply of steam, the boiler and load equipment on the steam