冷热电三联供系统研究(9):“煤改气”应首选燃气冷热电三联供系统
Research of combined cooling heating and power systems (9):Gas CCHP systems—the best way to substitute gas for coal
摘要：
针对目前“煤改气”过程中一味将燃气锅炉替代燃煤锅炉的做法提出质疑，认为“煤改气”有3条途径——燃气发电厂、燃气锅炉和燃气冷热电三联供系统（CCHP），分析了将燃气锅炉作为“煤改气”的最佳选择存在的诸多弊病，通过工程实例说明“煤改气”应首选燃气CCHP。
关键词：煤改气,燃气冷热电三联供系统,节能减排,空气污染,燃煤锅炉,燃气锅炉
Abstract：
Aiming at the process of substituting gas for coal, queries the blind practice of using gas-fired boilers to replace coal-fired boilers. Thinks that there are three ways for substituting gas for coal, namely, gas-fired power station, gas-fired boiler and gas CCHP system. Analyses some problems existed in substituting gas for coal when gas-fired boiler is used as the first choice. Combined with project cases, illustrates that gas CCHP should be the best way to substitute gas for coal.
Keywords:substitute gas for coal, gas CCHP system, energy saving and emission reduction, air pollution, coal-fired boiler, gas-fired boiler