Central fire cover and combustor comprising same

The center fire cover is provided with a center channel, a fire hole, an air cavity, an air outlet channel, an air blowing channel and an annular groove communicated with the fire hole and the outside, the center fire cover comprises a lower cover body and an upper cover body covering the lower cover body, the air cavity is formed between the upper cover body and the lower cover body, and the air outlet channel is communicated with the air outlet channel. The center channel is arranged on the lower cover body and communicated with the air cavity through the air outlet channel, and the air cavity is communicated with the annular groove through the air blowing channel. According to the invention, the flame leaving risk can be reduced, and the problem that the fire holes are blocked can be avoided. 本发明提供一种中心火盖和包含中心火盖的燃烧器，中心火盖具有中心通道、火孔、气腔、出气通道、吹气通道和连通所述火孔与外部的环形槽，其中，中心火盖包括下盖体和盖设在下盖体上方的上盖体，气腔形成在上盖体与下盖体之间，中心通道设置在下盖体上且通过出气通道与气腔相通，气腔通过吹气通道与环形槽相通。本发明能降低离焰风险，且能避免火孔被堵塞的问题。