低温回水热电联产供热技术和运行特性研究综述  

A review of low-temperature return water heat and power cogeneration heating technology and operational characteristics

作　　者：赵耀华 吕俊复[1] 李少华 ZHAO Yaohua;LYU Junfu;LI Shaohua(Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China;China Energy Engineering Corporation Limited,Beijing 100022,China;North China Power Engineering Co.,Ltd.,of China Power Engineering Consulting Group,Beijing 100120,China)

机构地区：[1]清华大学能源与动力工程系,北京100084 [2]中国能源建设股份有限公司,北京100022 [3]中国电力工程顾问集团华北电力设计院有限公司,北京100120

出　　处：《电力科技与环保》2024年第6期572-581,共10页Electric Power Technology and Environmental Protection

基　　金：山西省科技重大专项(20181102001)。

摘　　要：本文介绍了低温回水热电联产供热技术的原理、供热系统构成、能效评价指标体系、供热系统经济性评价和典型供热案例,采用凝汽供热和增加凝汽供热比例可明显降低热源供热等效电,降低供热成本,影响热源供热的主要因素有循环水温度、循环水量以及汽轮机背压;探讨了供热系统调节方式,一般采用质调节、量调节和分阶段变流量的质调节3种调节方法;总结了供热机组灵活性的主流技术和其他灵活性技术(利用热网和建筑物的热惯性调峰及利用长输管网回水侧容量蓄热);介绍了新能源供热技术等最新研究进展;对低温回水热电联产供热技术还需研究的问题进行了分析和展望。The principle of low-temperature return water cogeneration heat supply technology,the composition of the heat supply system,the energy efficiency evaluation index system,the economic evaluation of the heat supply system and the typical heat supply cases were introduced.The use of condensate heat supply and increasing the proportion of condensate heat supply significantly reduced the heat source heat supply equivalent electricity and reduced the cost of heat supply.The main factors affecting the heat source heat supply were the temperature of the circulating water,the amount of circulating water,and the steam turbine backpressure.It discusses the regulation methods of heat supply system,generally adopting three kinds of regulation methods,namely,quality regulation,quantity regulation and quality regulation with variable flow rate in phases.The mainstream technology of flexibility of heat supply units and other flexibility technologies were summerized(using the thermal inertia of heat networks and buildings to adjust peaks and utilizing the capacity of the return side of the long-distance pipeline network to store heat).It introduced the latest progress of the research on new energy heat supply technology was introduced.The issues that need to be researched on the low-temperature return-water cogeneration heat supply technology in the future also had been determined.

关 键 词：热电联产 低温回水 吸收式热泵 高背压 热电解耦 

分 类 号：TK01[动力工程及工程热物理] TM621[电气工程—电力系统及自动化]