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为了进一步提高燃气热电厂的热效率,文章提出了一种基于吸收式热泵的循环水余热利用技术,提取汽轮发电机组的循环水余热用于城市供暖,在燃气热电厂内设置溴化锂吸收式热泵站,利用机组抽汽作为动力源,以凝汽器升温后的循环冷却水作为热泵的热源水,提取余热加热热网水,从而显著提升燃气热电厂的供热能力及热效率,进一步降低综合供电气耗,实现节能减排的目的。
In order to further improve the thermal efficiency of gas-fired thermal power plant, this paper proposes a circulating water waste heat utilization technology based on absorption heat pump to extract residual heat of circulating water of turbine generator set for urban heating. A lithium bromide absorption heat pump station is set up in gas thermal power plant. The unit extracts the steam as the power source, uses the circulating cooling water after the condenser heats up as the heat source water of the heat pump, extracts the surplus heat to heat the heat net water, thus enhances the heating capacity and the thermal efficiency of the gas thermal power plant significantly, further reduces the comprehensive electricity consumption, realizes The purpose of energy-saving emission reduction.