热力发电Issue(4)：6-10,5.DOI:10.3969/j.issn.1002-3364.2015.04.006
凝汽余热利用对大型供热机组性能的影响
Exhaust heat utilization in large scale cogeneration units
摘要
Abstract
One of the most important research fields in combined heat and power (CHP)is to recycle the condenser waste heat by absorption heat pump,which can enhance the heating capacity and energy utiliza-tion efficiency of the plants.In this system,parameters selection for the extraction steam and condensed steam will affect the system performance and the safe and economic operation of the cogeneration units. Thus,on the basis of deeply analyzing the design and operation mechanism of large cogeneration units,the selection principle and correlation of extraction steam parameters and condensing steam parameters were determined,from the aspect of safe operation,to better utilization of condenser waste heat.At last,the effect of waste heat utilization on power generation was investigated.The results show that,under condi-tions with small volumetric flow,the alr cooling unit has stronger adaptability than the wet cooling unit. Both the heating and power generation should be considered to evaluate the energy utilization efficiency of the cogeneration units with waste heat recovery.关键词
大型供热机组/湿冷/空冷/热电联产/凝汽余热利用/吸收式热泵Key words
large cogeneration unit/wet cooling/air cooling/CHP/exhaust heat utilization/absorption heat pump分类
能源科技引用本文复制引用
李岩,付林,张淑彦..凝汽余热利用对大型供热机组性能的影响[J].热力发电,2015,(4):6-10,5.基金项目
河北省自然科学基金项目(E2013203181) （E2013203181）
