汽动空压机和电动空压机的压缩空气供应方式对比分析

Comparative Analysis of Compressed Air Supply Methods Between Steam-Driven and Electric Air Compressors

近年来,在“碳达峰、碳中和”目标下工业企业节能降耗受到广泛关注,其中,作为工业企业第二大动力源,空压机的节能提效是当下重点工作之一。为此,对电机驱动、背压供热机组蒸汽驱动、抽凝供热机组蒸汽驱动和抽凝非供热机组蒸汽驱动等4种不同驱动形式的空压机进行技术分析和研究,主要从到户压缩空气一次能源消耗情况、碳排放和能源成本3方面进行分析对比。结果表明:电动空压机的碳排放最低,能源成本最高;抽凝供热机组和抽凝非供热机组所耦合的汽动空压机,其到户压缩空气一次能源消耗情况和碳排放都明显较差;背压供热机组所耦合的汽动空压机在到户压缩空气一次能源消耗情况、碳排放方面均好于电动空压机。

In recent years,under the goal of“carbon peak and carbon neutrality”,energy conservation and consumption reduction in industrial enterprises have attracted wide attention.As the second largest power source,the energy saving and efficiency improvement of air compressor is one of the key work at present.In this paper,technical analysis and research are carried out on four different driving forms of air compressors that are electricdriven,steam-driven of back pressure heating unit,steam-driven of condensing heating unit and steam-driven of condensing non-heating unit.Combined with the technical characteristics,the primary energy consumption,carbon emission and energy cost of compressed air are analyzed and compared.The results show that electric air compressor has the lowest carbon emissions and the highest energy costs,and the steam-driven air compressor coupled with the condensing heating unit or condensing non-heating unit has the worst effect than others in the primary energy consumption and carbon emissions.The steam-driven air compressor coupled with the back pressure heating unit is better than the electric air compressor in terms of primary energy consumption and carbon emission of compressed air.