Hood, hood subassembly and boiler

The utility model provides a hood, hood subassembly and boiler. The hood includes: body, body include diapire and the lateral wall of being connected with the diapire, and the one end of keeping away from the diapire of lateral wall forms the opening, and diapire, lateral wall enclose the inside cavity with the opening intercommunication, the exhaust vent sets up on the lateral wall, and exhaust vent and inside cavity intercommunication, wherein, the contained angle alpha between the central line of central line and the body of exhaust vent is less than 90. The technical scheme of the utility model can solve among the prior art hood can not directional air -out, results in the fluidization quality of cinder notch department down not good, arranges the sediment difficulty, needs the staff frequently to disclose the sediment, and intensity of labour is big, leads to the fact environmental pollution's problem in addition easily. 本实用新型提供了种风帽、风帽组件以及锅炉。风帽包括：本体，本体包括底壁和与底壁连接的侧壁，侧壁的远离底壁的端形成开口，底壁、侧壁围成与开口连通的内部腔体；出风孔，设置在