双碳背景下电除尘器的节能减碳分析
摘要：双碳背景下节能提效是燃煤电厂减碳的第一优选，通过对超低排放改造前后干式电除尘器、湿式电除尘器、辅助设备及除尘技术路线进行能效参数分析评测，挖掘其节能减碳空间。超低排放改造前，300 MW级、600 MW级、1 000 MW级机组配套干式电除尘器的高压电耗对应的CO2年排放量分别约为6 000、9 000、14 000 t，且电除尘性能越好，对应的能耗及CO2排放量越高；超低排放改造后，1 000 MW级机组配套电除尘器的高压供电电耗对应的CO2年排放量约为18 000 t，较超低排放改造前增加了约20%，但通过节能优化可减排约60%。300 MW级、600 MW级、1 000 MW级机组配套湿式电除尘器的高压供电电耗对应的CO2年排放量分别约为2 000、2 500、3 400 t；630 MW机组低温省煤器可年减排CO2约19 000 t，280 t/h炉相变凝聚器可年减排CO2约8 000 t。与湿式电除尘技术路线相比，660 MW机组以低低温电除尘技术为核心的烟气协同治理技术路线可年减排CO2约3 000 t。研究结果可为后续燃煤电厂碳减排提供参考。
Abstract:Energy conservation and efficiency improvement under the dual carbon background is the first choice for coal-fired power plants to reduce carbon. The energy efficiency parameters of dry electrostatic precipitator (ESP), wet electrostatic precipitator (WESP), auxiliary equipment and dust removal technology route before and after ultra-low emission transformation were analyzed and evaluated, which could excavate their energy saving and carbon reduction space. Before the transformation of ultra-low emission, the annual CO2 emissions corresponding to the high voltage power consumption of 300 MW, 600 MW and 1000 MW units supporting dry ESP are about 6 000 t, 9 000 t and 14 000 t respectively. In addition, the better the performance of ESP, the higher the corresponding energy consumption and CO2 emission. After the ultra-low emission transformation, the annual CO2 emission corresponding to the high-voltage power supply power consumption of the 1000 MW unit supporting the ESP is about 18 000 t, which increases by about 20% compared with that before the transformation, but could be reduced by about 60% through the energy saving optimization. The annual CO2 emissions corresponding to the high-voltage power supply power consumption of the 300 MW, 600 MW and 1000 MW units supporting the WESP are about 2 000 t, 2500 t and 3400 t, respectively. The low temperature economizer of 630 MW unit could reduce the annual CO2 emission by about 19000 t, and the phase change condenser of 280 t/h furnace could reduce the annual CO2 emission by about 8 000 t. Compared with the WESP removal technology route, the flue gas cooperative treatment technology route of 660 MW unit with low-low temperature ESP removal technology as the core could reduce the annual CO2 emission by about 3 000 t. This paper could provide technical ideas for the carbon emission reduction of subsequent coal-fired power plants.
标题：双碳背景下电除尘器的节能减碳分析
title:Energy Saving and Carbon Reduction Analysis of Electrostatic Precipitator Under Double Carbon Background
作者：刘含笑
authors:Hanxiao LIU
关键词：燃煤电厂,超低排放,电耗,CO2减排,碳达峰,碳中和,
keywords:coal-fired power,ultra-low emission,power consumption,CO2 emission reduction,carbon peak,carbon neutral,
发表日期：2023-10-31
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