大型供热机组深度参与电网调峰的一种新模式  

A New Model of Large Heating Units Deeply Involved in the Peak Regulation of Power Network

作　　者：毕庆生[1] 田春光[2] 吕项羽[2] 李德鑫[2] 董添[2] 

机构地区：[1]长春工程学院能源与动力工程学院吉林省建筑能源供应及室内环境控制工程研究中心,长春130012 [2]国网吉林省电力有限公司电力科学研究院,长春130021

出　　处：《汽轮机技术》2014年第1期69-71,共3页Turbine Technology

摘　　要：在寒冷地区,传统大型供热机组供热模式在能源梯级利用方面存在很大缺陷,供热抽汽压力设定不合理,致使机组的做功能力下降,调峰能力不高。提出了可采用两台大型供热机组热网加热器串联运行,在第一台机组热网加热器前增设小背压机组的新模式。该模式不仅能较好地降低第一台机组供热抽汽压力至合理值,还能增加供热机组的发电量。另外,还可以用背压机带动电动压缩式热泵,增大了机组的对外供热能力,降低了机组的发电出力,提高了大型供热机组深度参与电网的调峰能力。Traditional heating mode of large heating units has a prodigious defect in the energy cascade utilization in cold region,and the Heating steam pressure is not reasonable .Leading to reduced unit load and Peaking capacity is not high .A new model is proposed on two heat exchangers were series operation and a small back -pressure turbine was placed before the heat exchanger of first large heating unit heater ,so as to increase the generating capacity of heating unit and can reduce the first unit heating extraction steam pressure to a reasonable value .In addition ,also can use the samll back pressure turbine driven electric compression type heat pump ,so as to increase the external heating capacity and reduce the heating unit power output and improve the regulating ability of power network .

关 键 词：大型供热机组 供热模式 电网调峰 供热抽汽参数 

分 类 号：TE662[石油与天然气工程—油气加工工程]