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工业锅炉是企业中主要耗能设备,因此,降低企业能耗自然可以从改造锅炉和改进用能装置着手。目前看来,这二方面节能潜力是不小的。但在有些企业中,由生产工艺流程所决定,锅炉负荷频繁地大幅度波动时,只靠上述二方面改进还是不够的。众所周知,锅炉有其自己的经济负荷,偏离这一负荷,效率就要降低。负荷波动越大,越频繁,效率降低就越多。具体降低多少与锅炉设计情况、所用的燃料和运行水平等有关,可由热工试验决定。我国工业锅炉由于用煤质量差且多变,自控水平低,对于
Industrial boilers are the main energy-consuming equipment in enterprises. Therefore, reducing the energy consumption of enterprises can naturally start from the renovation of boilers and the improvement of energy-using devices. It seems that the potential for energy saving in these two aspects is not small. However, in some enterprises, when the boiler load is fluctuating frequently, as determined by the production process, it is not enough to rely on the above two improvements. As we all know, boilers have their own economic load. Deviating from this load, the efficiency will be reduced. The greater the fluctuation of the load, the more frequently the more the efficiency decreases. The specific reduction depends on the design of the boiler, the fuel used and the operating level, etc. It can be determined by the thermal test. China’s industrial boilers have poor quality due to poor coal quality, and have low levels of self-control.