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高压加热器故障停运会引起机组热耗率和煤耗率增加。针对国产２００ＭＷ机组缺少这方面理论计算的评估依据，而仅凭经验进行评估又感到不足的现场实际情况，通过高压加热器切除时的热力计算，得出了国产２００ＭＷ机组高压加热器对电厂热经济性影响的确切数据，并导出了高压加热器对煤耗率影响的估算公式，为电厂节能管理工作提供了一种新的简便手段。
High-pressure heater fault outage will cause unit heat rate and coal consumption rate increased. In view of the fact that the domestic 200MW unit lacks the theoretical basis for the theoretical calculation in this respect and the actual situation is not enough to evaluate and evaluate based on experience alone, the calculation of the thermal power at the time of cutting off the high-pressure heater shows that the domestic high- The exact data of the influence of the heat transfer coefficient and the estimated formula of the influence of the HP heater on the coal consumption rate are derived, which provides a new simple and convenient method for the power plant energy conservation management.