大型纯凝汽式汽轮发电机组供热改造方法研究  

Study on a Heat Supply Modification Method of Large Scale Pure Condensing Steam Turbine Generator Units

作　　者：文立斌 WEN Libin(Electric Power Research Institute of Guangxi Power Grid Co.,Ltd.,Guangxi Nanning 530023,China)

机构地区：[1]广西电网有限责任公司电力科学研究院,广西南宁530023

出　　处：《广西电力》2018年第6期11-15,共5页Guangxi Electric Power

摘　　要：提出一种大型纯凝汽式汽轮发电机组供热改造方法。该方法可根据工程需要对蒸汽混合器、联通管蝶阀、压力匹配器、供汽联箱、减温器、管道和相关阀门以及测试仪表等主要设备装置进行灵活配置,实现高压汽源带动低压汽源向外供汽,或提高中压缸排汽压力以对外供汽。工程应用表明,该方法无需进行锅炉和汽轮机本体改造,仅对纯凝汽式汽轮发电机组进行供热改造,即可实现机组集中供热,提高一次能源使用效率。A heat supply modification method of large scale pure condensing steam turbine generator units is proposed.According to needs of projects,the method can flexibly configure main devices and equipment including the steam mixer,the butterfly valve of connecting pipe,the pressure adaptor,the steam header,the temperature reducer,the pipes and related valves and the test instruments and so on,which realizes the supply steam of the low pressure steam source driven by the high-pressure steam source or the supply steam by increasing the exhaust steam pressure of middle pressure cylinders.The engineering application shows that the method,which doesn’t need the modification of boiler and steam turbine body and only needs the heat supply modification of pure condensing steam turbine generator units,can realize the central heat supply of generator units and improve the primary energy usage efficiency.

关 键 词：纯凝汽式汽轮发电机组 热电联产 供热改造 联通管蝶阀 压力匹配器 

分 类 号：TM621[电气工程—电力系统及自动化]