300/330MW机组供热改造方案的研究与实施

针对某发电厂采用300/330 MW亚临界机组替代原135 MW超高压机组对外抽汽供热的实际需求,根据区域供热发展形势,制定了具体的抽汽供热改造目标,研究了不同抽汽供热方案对机组运行安全性和经济性的影响程度,对抽汽供热改造和运行中可能出现的问题展开了讨论,有关评估和分析意见为抽汽供热改造项目的分阶段实施提供了技术指导.

Research and Implementation of Heat Supply Retrofit Plan for 300/330 MW Units

In view of the need to replace the 135 MW ultra-high pressure units with the 300/330 MW subcritical units for steam extraction heat supply in a power plant,this paper formulates the objectives of the steam extraction heat supply retrofit according to the district heat supply development trends,studies the influence of different steam extraction heat supply plans on the safety and economy of unit operation.It also discusses the problems that might occur in the retrofit and operation.The evaluation and analysis results can provide the technical guidance for the staged implementation of steam extraction heat supply retrofit project.