严寒和寒冷地区火电厂空气压缩机室冬季通风热补偿探讨

Discussion on winter ventilation thermal compensation for air compressor room of thermal power plants in severe cold and cold zones

简要介绍了空气压缩机散热的特点,结合近年来严寒和寒冷地区部分火电厂工程实例,通过数据整理及计算分析,重点阐述了2种热平衡方式。认为在空气压缩机室设备散热量可满足空气压缩机吸气通风热补偿量情况下,冬季通风热平衡取决于空气压缩机能效和供暖室外计算温度;在空气压缩机室设备散热量不足以满足空气压缩机吸气通风热补偿量情况下,冬季通风热平衡应综合考虑空气压缩机的能效、单位建筑面积产气量及工程地点的气象资料3个主要影响因素。编制了计算列表,供有关专业人员拟定空气压缩机室冬季通风热平衡设计方案时参考。

Briefly presents the heat release characteristics of air compressors. Combined with the engineering examples of thermal power plants in severe cold and cold zones in recent years, mainly describes two kinds of heat balance modes by data processing and computational analysis. Considers that under the condition of air compressor room equipment heat release capacity meeting the ventilation thermal compensation amount of air compressor suction, the thermal balance of winter ventilation depends on energy efficiency of air compressors and outdoor design temperature for heating; under the condition of air compressor room equipment heat release capacity unsatisfying the ventilation thermal compensation amount of air compressor suction, it should consider three main influencing factors including the energy efficiency of air compressors, the gas production per unit building area and meteorological data of project site. Compiles the calculation lists to provide the reference to the professionals in the early design stage of winter ventilation and heat balance for air compressor rooms.