202402

A 燃煤电厂多模式耦合供热系统运行优化研究
发布人:网站管理员 发布时间:2024/2/10 点击次数:9次
  

A 燃煤电厂多模式耦合供热系统运行优化研究
郭文华
(山西大唐国际云冈热电有限责任公司,山西 大同 037000)
摘要:A 燃煤电厂多种供热改造系统耦合运行,为提高供热系统节能效果,降低发电煤耗,通过EBSILON 软
件搭建理论模型。研究结果表明:按照余热利用占比由高到低分别为高背压供热方式、热泵供热方式、抽汽供热
方式;为提高机组的余热利用占比,应优先提高高背压供热量;单机的可利用余热有限,超过余热量时,剩余热
量需要采用抽汽供热方式,因此,随着总供热量增加,抽汽量、机组电功率和高背压供热占比都会出现拐点;通
过对历史运行数据采用神经网络算法训练,获得供热量预测模型,结合EBSILON 模型对电厂供热节能优化提出
指导意见。
关键词:燃煤电厂;EBSILON 软件;高背压;热泵;优化
中图分类号:TK264.11      文献标志码:A      文章编号:2095-0802-(2024)02-0028-05
Optimization of Multimode Coupled Heating System Operation in Coal-fired
Power Plant A
GUO Wenhua
(Shanxi Datang International Yungang Thermal Power Co., Ltd., Datong 037000, Shanxi, China)
Abstract: Multimode coupled heating system runs in coal-fired power plant A. In order to improve the energy-saving
effect of the heating system and reduce the coal consumption of power generation, a theoretical model was built by
EBSILON software. The research results showed that according to the proportion of waste heat utilization from high to low,
it was divided into high back pressure heating mode, heat pump heating mode and extraction steam heating mode; in order
to increase the proportion of waste heat utilization of the unit, priority should be given to increasing high back pressure
heat supply; for a single machine, the available waste heat was limited, and when the available waste heat exceeded the
residual heat, the remaining heat needs to be fully utilized for steam extraction heating, therefore, with the increase of total
heat supply, the steam extraction volume, the electric power of the unit and the proportion of high back pressure heating
will have an inflection point; the historical data was trained by the neural network method, the heat supply prediction
model was obtained, and the guidance for the optimization of heating energy saving in the power plant was put forward by
combining the EBSILON theoretical model.
Key words: coal fired power plant; EBSILON software; high back pressure; heat pump; optimization