Boiler system

The invention discloses a boiler system which comprises a starting boiler (100), a first flue gas pipeline (200), a second flue gas pipeline (300), an SCR denitration device (400) and a main boiler flue gas pipeline (500). The first flue gas pipeline (200) is provided with a first flue gas isolating switch (210), the second flue gas pipeline (300) is provided with a second flue gas isolating switch (310), the first end of the first flue gas pipeline (200) and the first end of the second flue gas pipeline (300) communicate to the starting boiler (100), and the second end of the second flue gaspipeline (300) and the main boiler flue gas pipeline (500) communicate to the SCR denitration device (400). According to the scheme, a problem that oxynitride in flue gas discharged by a coal-fired power plant exceeds the standard for the boiler system as an SCR denitration system cannot be put into operation when the main boiler is in a low load operating state is solved. 本发明公开一种锅炉系统，所公开的锅炉系统包括启动锅炉(100)、第一烟气管道(200)、第二烟气管