200 MW热电联产机组火电灵活性供热改造分析

Analysis of Thermal Power Flexible Heating Retrofit for 200 MW Cogeneration Units

新能源供电方式的快速发展对热电联产机组提出了更高的灵活性调峰要求,因此深入研究热电联产机组深度调峰运行方式,解决供热负荷与发电负荷的直接矛盾迫在眉睫。文章以某200 MW供热式汽轮机发电机组供暖改造为例,对新型凝抽背供热改造技术进行了分析,深入分析了供暖改造技术的热负荷供给能力、灵活调峰能力,论证了技术的经济性和安全性,为我国火电灵活性改造提供参考。

The rapid development of new energy power supply methods has puts forward higher flexible peak shaving requirements for cogeneration units.Therefore,it is urgent to study the deep peak shaving operation mode of cogeneration units to solve the direct contradiction between heating load and power generation load.Taking the heating retrofit of a 200 MW heating turbine generator set as an example,this paper analyzes the new condensing-extraction back heating retrofit technology,deeply analyzes the heat load supply capacity and flexible peak regulation capacity of the heating retrofit technology,and demonstrates the economy and safety of the technology,providing references for the flexibility retrofit of thermal power in China.