Performance of a Compression Heat Pump for Waste Heat Recovery from Gas-Fired Boiler Flue Gas

DU Yongbo; LI Yuhang; WANG Zhenchuan; LU Haigang; XU Qiong; LU Jie; CHE Defu

doi:10.7652/xjtuxb202608010

您当前的位置：

首页 >

文章列表页 >

Performance of a Compression Heat Pump for Waste Heat Recovery from Gas-Fired Boiler Flue Gas

更新时间：2026-07-28

- Performance of a Compression Heat Pump for Waste Heat Recovery from Gas-Fired Boiler Flue Gas
- Journal of Xi'an Jiaotong University Vol. 60, Issue 8, Pages: 112-122(2026)
- 作者机构：
  
  西安交通大学能源与动力工程学院，710049，西安
  中国特种设备检测研究院，100029，北京
  方快锅炉有限公司，455099，河南安阳
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202608010
  CLC： TK229.8
- Received：06 November 2025，
  
  Online First：14 April 2026，
  
  Published：10 August 2026
- 稿件说明：
移动端阅览
DU Yongbo, LI Yuhang, WANG Zhenchuan, et al. Performance of a Compression Heat Pump for Waste Heat Recovery from Gas-Fired Boiler Flue Gas[J]. Journal of Xi'an Jiaotong University, 2026, 60(8): 112-122.
DOI：

DU Yongbo, LI Yuhang, WANG Zhenchuan, et al. Performance of a Compression Heat Pump for Waste Heat Recovery from Gas-Fired Boiler Flue Gas[J]. Journal of Xi'an Jiaotong University, 2026, 60(8): 112-122. DOI： 10.7652/xjtuxb202608010.

摘要

为解决燃气锅炉在实际运行中，变化负荷导致烟气参数与热泵循环工质特性不匹配的问题，研究了压缩式热泵回收燃气锅炉烟气的余热性能。搭建了用于7 MW卧式天然气真空锅炉烟气余热回收系统的热泵系统，运用实验与流程模拟相结合的方法，在100%、75%和50%负荷下，研究了锅炉热泵工质的流量、压比与负荷对系统性能的影响。研究结果表明：在100%负荷下，随着制冷剂流量的升高，热泵余热回收量先增大，而后基本不变，性能系数（COP）由7.08下降至5.94，系统效率先迅速升高至106.8%后缓慢下降。在高压侧压力升高时，热泵COP及效率先下降至1.97与101.1%，再迅速升高至8.09与107.2%，随后又下降至5.56与106.4%。锅炉负荷的变化会改变余热回收量达到峰值时，制冷剂流量、COP及效率的最大值，锅炉在满负荷、75%及50%负荷下，热泵最佳运行区间分别为：制冷剂流量大于3.40、2.30、0.68 kg·s

-1

，高压侧压力大于1020、900、820 kPa。该研究可为压缩式热泵回收燃气锅炉余热系统的高效运行提供参考。

Abstract

To address the issue of mismatches between flue gas parameters and heat pump cycle working fluid characteristics caused by varying loads during the actual operation of gas-fired boilers

the performance of a compression heat pump for waste heat recovery from gas-fired boiler flue gas was investigated. A heat pump system was constructed as part of the flue gas waste

heat recovery system of a 7 MW horizontal natural gas vacuum boiler. By combining experimental and process simulation methods

the effects of the heat pump refrigerant flow rate

pressure ratio

and boiler load on system performance were studied under boiler loads of 100%

75%

and 50%. The research results show that at 100% load

as the refrigerant flow rate increases

the waste heat recovery capacity of the heat pump initially increases and then plateaus

the coefficient of performance (COP) decreases from 7.08 to 5.94

and the system efficiency first rises rapidly to 106.8% and then declines gradually. As the high-side pressure increases

the COP and efficiency of the heat pump first drop to 1.97 and 101.1%

respectively

then rise rapidly to 8.09 and 107.2%

respectively

and subsequently fall to 5.56 and 106.4%

respectively. Changes in boiler load affect the refrigerant flow rate at which the waste heat recovery capacity reaches its peak

as well as the maximum values of COP and efficiency. Under boiler loads of 100%

75%

and 50%

the optimal operating conditions for the heat pump are as follows:refrigerant flow rates exceeding 3.40

2.30

and 0.68 kg·s

-1

respectively

and high-side pressures exceeding 1020

900

and 820 kPa

respectively. This study provides a reference for the efficient operation of compression heat pump waste heat recovery systems for gas-fired boilers.

关键词

Keywords

references

杨旭，胡昊宇，曹锋.涡旋膨胀机研究进展及展望[J].西安交通大学学报，2024，58（3）：1-14.

Yang Xu, Hu Haoyu, Cao Feng. A review of research progress and prospect of scroll expander[J]. Journal of Xi'an Jiaotong University, 2024, 58 (3): 1-14.

许文盼，赵攀，马宁，等.可灵活调节的压缩二氧化碳储能热电联供系统及其热力学分析[J].西安交通大学学报，2025，59（8）：75-87.

Xu Wenpan, Zhao Pan, Ma Ning, et al. Flexible compressed CO 2 energy storage combined heat and power system and thermodynamic analysis[J ] . Journal of Xi'an Jiaotong University, 2025, 59 (8): 75-87.

鄢照国，赵德威，马鸿飞，等.燃气锅炉与空气源热泵高效耦合供暖系统的设计[J].工业锅炉，2023（1）：31-36.

Yan Zhaoguo, Zhao Dewei, Ma Hongfei, et al. System design analysis on gas-fired boiler and air source heat pump combination solution[J]. Industrial Boilers, 2023 (1): 31-36.

何婷，黄舒阳，黄坤，等.基于余热利用的天然气化学吸收脱碳-高温热泵耦合流程研究[J].化工学报，2025，76（增刊1）：297-308.

He Ting, Huang Shuyang, Huang Kun, et al. Research on the coupled process of natural gas chemical absorption decarbonization and high temperature heat pump based on waste heat utilization[J]. CIESC Journal, 2025, 76 (S1): 297-308.

Che Defu, Liu Yanhua, Gao Chunyang. Evaluation of retrofitting a conventional natural gas fired boiler into a condensing boiler [J].Energy Conversion and Management,2004,45（20）:3251-3266.

刘丽红，何争艳，罗武生，等.基于直膨式热泵技术的燃气锅炉烟气余热深度利用[J].工业锅炉，2021（5）：32-36.

Liu Lihong, He Zhengyan, Luo Wusheng, et al. Deep utilization of flue gas waste heat of gas-fired boiler based on direct expansion heat pump technology[J]. Industrial Boilers, 2021 (5): 32-36.

韩伟.应用热泵进一步回收低温烟气余热的经济性分析[J].工业锅炉，2018（1）：42-51.

Han Wei. Analysis of application of heat pump in heat recovering of low temperature flue gas[J]. Industrial Boilers, 2018 (1): 42-51.

张琳.热泵型燃气锅炉烟气冷凝余热回收系统研究[D].北京：北京建筑大学，2018.

李宁宁，徐琼，张芳，等.燃气锅炉-吸收式热泵一体化系统性能研究[J].工业锅炉，2025（4）：7-13.

Li Ningning, Xu Qiong, Zhang Fang, et al. Performance study of a gas Boiler-Absorption heat pump integrated system[J]. Industrial Boilers, 2025 (4): 7-13.

侯刚，张东，王铨，等.基于热泵与低温空预器的燃气锅炉尾气水热回收系统性能研究[J].热能动力工程，2024，39（2）：82-90.

Hou Gang, Zhang Dong, Wang Quan, et al. Study on performance of gas boiler tail gas hydrothermal recovery system based on heat pump and low temperature air preheater[J]. Journal of Engineering for Thermal Energy and Power, 2024, 39 (2): 82-90.

周有苗，刘晔，余锋，等.双源压缩-喷射复合热泵系统构建及特性分析[J].化工学报，2025，76（增刊1）：36-42.

Zhou Youmiao, Liu Ye, Yu Feng, et al. Analysis of a novel dual heat source compression-ejection hybrid heat pump system[J]. CIESC Journal, 2025, 76 (S1)：36-42.

Zhao Xiling, Lin Fu, Tao Sun, et al. The recovery of waste heat of flue gas from gas boilers [J].Science and Technology for the Built Environment,2017, 23（3）:490-499.

Ye Bicui, Liu Jun, Xu Xiangguo, et al. A new open absorption heat pump for latent heat recovery from moist gas [J].Energy Conversion and Management, 2015,94:438-446.

Ye Bicui, Ding Yaqi, Wang Zheng, et al. Experimental evaluation of a variable-stage open absorption heat pump system utilizing aqueous KCOOH solution as absorbent [J].International Journal of Refrigeration, 2023,148:83-95.

张俊博，金旭，刘忠彦，等.吸收式热泵余热回收先进技术综述[J].发电技术，2020，41（3）：269-280.

Zhang Junbo, Jin Xu, Liu Zhongyan, et al. Review on advanced technology for waste heat recovery of absorption heat pump[J]. Power Generation Technology, 2020, 41 (3): 269-280.

Hebenstreit B, Schnetzinger R, Ohnmacht R, et al. Techno-economic study of a heat pump enhanced flue gas heat recovery for biomass boilers[J].Biomass and Bioenergy,2014,71:12-22.

孙健，秦宇，郝俊红，等.基于工业余热的高温空气源耦合热泵循环性能分析[J].综合智慧能源，2023， 45（7）：40-47.

Sun Jian, Qin Yu, Hao Junhong, et al. Performance analysis on high temperature air source heat pump coupling cycle based on industrial waste heat[J]. Integrated Intelligent Energy, 2023, 45 (7): 40-47.

陈海悦.耦合压缩式/吸收式热泵的性能研究[D].北京：华北电力大学，2023.

斯伟，梁俊宇，殷捷.基于Aspen Plus的高温热泵蒸汽机仿真模拟[J].能源研究与利用，2020（6）：29-33.

Si Wei, Liang Junyu, Yin Jie. Simulation of high temperature vapor heat pump based on Aspen Plus[J]. Energy Research & Utilization, 2020 (6): 29-33.

徐琼，杜勇博，李宁宁，等.耦合制冷剂回流压缩的吸收式热泵回收低温余热性能[J].化学工程，2025， 53（4）：77-82.

Xu Qiong, Du Yongbo, Li Ningning, et al. Performance of absorption heat pump coupled with reflux refrigerant compression for low-temperature waste heat recovery[J]. Chemical Engineering (China), 2025, 53 (4): 77-82.

王康，张娜，韩巍，等.热功复合驱动热泵循环热力性能研究[J].工程热物理学报，2015，36（11）：2328-2333.

Wang Kang, Zhang Na, Han Wei, et al. Performance study of an absorption/compression hybrid heat pump cycle[J]. Journal of Engineering Thermophysics, 2015, 36 (11): 2328-2333.

徐琼，杜勇博，张井坤，等.吸收-压缩热泵回收高水分杂醇烟气余热研究[J].节能技术，2024，42（2）：99-105.

Xu Qiong, Du Yongbo, Zhang Jingkun, et al. Research on the performance of an absorption-compression heat pump for recovering heat from fusel flue gas[J]. Energy Conservation Technology, 2024, 42 (2): 99-105.

邓世丰，张浩远，郭辉，等.压缩式热泵回收燃气锅炉烟气余热的实验研究[J].动力工程学报，2025， 45（7）：1144-1152.

Deng Shifeng, Zhang Haoyuan, GUO Hui, et al. Experimental research on the recovery of waste heat from gasfired boiler flue gas using a compression heat pump[J]. Journal of Chinese Society of Power Engineering, 2025, 45 (7): 1144-1152.

杨玲.中水源热泵系统的建模与仿真研究[D].北京：华北电力大学，2007.

丁久平.双通道双冷源空调系统的建模及仿真研究[D].合肥：合肥工业大学，2024.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on High-Temperature Corrosion Behavior and Mechanisms of T91 Heat-Resistant Steel in Water-Cooled Walls of 630℃Ultra-Supercritical Power Generation Units

Experimental and Theoretical Study on Heat and Mass Transfer of Hollow Fiber Membrane Heat Exchanger

A New Combined Thermodynamic Cycle for Waste Heat Recovery of Vehicle Engine

Experimental Study on the Influencing Factors of Low Temperature Corrosion of H-Type Finned Tube Heat Exchangers

Energy Saving Potential Analysis for Organic Rankine Cycle System under Real Road Conditions

Related Author

ZHAO Qinxin

SHAO Huaishuang

WEI Pengkai

LIANG Zhiyuan

CHEN Yana

HE Chuang

冯诗愚 1

王赞社 1

Related Institution

MOE Key Laboratory of Thermo-Fluid Science and Engineering Xi 'an Jiaotong University

Harbin Boiler Works Co., Ltd., Haerbin

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University

Key Laboratory of Thermo-Fluid Science and Engineering of MOE, Xi 'an Jiaotong University

College of Environmental and Energy Engineering, Beijing University of Technology

⁰