CAJ | 학술논문

为充分利用热电厂汽轮机乏汽的大量余热，改善机组运行的经济性，提升系统的环保性。同煤集团大唐热电厂4×50 MW机组新近采用吸收式热泵热电联产供热技术，通过增加余热回收机组及收式换热机组等核心设备，增高了热网供、回水温差，在无需对现有管网改造的情况下，高效回收了电厂汽轮机乏汽余热，显著提高了热电厂为城市集中供热提供热源的能力。经测算，系统改造后，每天不仅可回收乏汽余热1.3万GJ，增加供热面积2500万m2，还可减少大量CO2、SO2、NOx 及其他污染物排放，项目3a内即可收回全部投资。
위충분이용열전엄기륜궤핍기적대량여열，개선궤조운행적경제성，제승계통적배보성。동매집단대당열전엄4×50 MW궤조신근채용흡수식열빙열전련산공열기술，통과증가여열회수궤조급수식환열궤조등핵심설비，증고료열망공、회수온차，재무수대현유관망개조적정황하，고효회수료전엄기륜궤핍기여열，현저제고료열전엄위성시집중공열제공열원적능력。경측산，계통개조후，매천불부가회수핍기여열1.3만GJ，증가공열면적2500만m2，환가감소대량CO2、SO2、NOx 급기타오염물배방，항목3a내즉가수회전부투자。
In order to recycle waste heat from exhaust steam of turbine in coal-fired power plant,improve economic benefits and enhance environmental performance,an adsorption heat pump technology was adopted in combined heat and power generation system of 4×50 MW power units in Datang heat power plant of Datong Coal Mine Group. The temperature difference between supplying water and backwater was improved by installing the waste heat recovery units and absorption heat exchange units. Without rebuilding pipe networks,waste heat from the power plant steam was recovered efficiently. The heat supply ability of heat power plant was obviously enhanced. Compared with the o-riginal system,the new system could recover 1. 3×104 GJ waste heat of per day,increase 2. 5×107 m2 heating area and decrease CO2 ,SO2 , NOx emission and other pollutions discharge at the same time. From economic aspect,the total invest could be recovered in 3 years. The project has good economic and environmental benefits.