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针对浅层地热能应用过程中尚未解决的热平衡控制、天然气基分布式能源系统含硫低温烟气余热无法回收利用两个关键问题,基于能的综合梯级利用以及主动式热平衡思想,提出基于主动式热平衡集成机理的燃气轮机与热泵耦合一体化应用分布式热电联产系统,借助新型集成方式将含硫低温烟气余热回收与土壤源热泵一体化应用,不仅同时解决含硫低温烟气余热回收以及热失衡问题,并大幅提高系统热力性能与系统运行稳定性。采用流程模拟软件Aspen-plus完成新型系统以及参比系统性能对比计算,计算结果表明,较之参比系统,该新型系统总能系统效率达到82.7%,较参比系统73.8%,提高8.9个百分点;?效率为28.8%,较参比系统25.8%,提高3个百分点。该新型统的集成方法与思路为中低温烟气余热的高效应用提供一种新解决途径。
In view of the unsolved thermal balance control in the shallow geothermal energy application process, the two key problems that the sulfur-based low-temperature flue gas waste heat of the natural gas-based distributed energy system can not be recycled, the energy-based integrated cascade utilization and the active heat balance idea, Heat balance integrated mechanism of gas turbine and heat pump coupling integrated application of combined heat and power cogeneration system, with the help of new integration of sulfur and low temperature flue gas waste heat recovery and ground source heat pump integrated application, not only solve the low sulfur flue gas waste heat recovery and heat Imbalance problem, and greatly improve the system thermal performance and system stability. The performance comparison between the new system and the reference system is completed by using Aspen-plus software. The calculated results show that compared with the reference system, the total system efficiency of the new system reaches 82.7%, which is 73.8% higher than that of the reference system, an increase of 8.9% Efficiency of 28.8%, 25.8% over the reference system, an increase of 3 percentage points. The integrated method and idea of the new system provide a new solution for the efficient use of waste heat from low and medium temperature flue gas.