热电厂余热利用技术综述及工程实例  

Overview of Thermal Power Plant Waste Heat Utilization Technology and Engineering Example

作　　者：赵惠中 赵欣刚 ZHAO Huizhong;ZHAO Xingang

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381

出　　处：《煤气与热力》2018年第7期1-5,共5页Gas & Heat

摘　　要：对汽轮机低真空运行供热技术、凝汽抽汽背压式机组供热技术、热泵回收余热技术(利用电驱动压缩式热泵回收余热、利用蒸汽驱动吸收式热泵回收余热)和基于吸收式循环的热电联产集中供热技术(清华大学2007年提出)4种技术进行分析。以古交兴能电厂至太原市区供热工程为例,阐明工程应用的主要技术措施(汽轮机凝汽余热利用、大高差和大温差供热、多级中继泵联动、特长供热隧道、超长距离输送、高压板式换热器阵列)。Four technologies including steam turbine low-vacuum operation heating technology, condensing steam extraction back-pressure unit heating technology, heat pump recovering waste heat technology （using electric-driven compression heat pump to recover waste heat and steam-driven absorption heat pump to recover waste heat） and centralized heat-sup- ply technology based on absorption cycle heat and power cogeneration （proposed by Tsinghua University in 2007 ） are analyzed. Taking the heating project from Gujiao Xingeng Power Plant to Taiyuan City as an example, the main technical measures for the project application （steam turbine condensing waste heat utilization, large height difference and large temperature difference heating, multistage relay pump linkage, very long-distance heating tunnel, ultra long distance transmission and high pressure plate heat exchanger array） are expounded.

关 键 词：热电厂 余热利用 热泵 吸收式循环热电联产供热技术 

分 类 号：TM611.1[电气工程—电力系统及自动化]