Boiler feed water pretreatment device

The utility model discloses a boiler feed water pretreatment device which comprises a baffled reactor, a vertical flow clarifier and an external pressure type fiber membrane bioreactor, and the vertical flow clarifier used for adsorbing sludge is arranged on the side end face of the baffled reactor. The baffling mixing reaction of the baffling reactor is sufficient, and medicament adding points are arranged separately, so that the medicament is fully utilized, the dosage and residue of the medicament are reduced, and the energy consumption of forced stirring and the shearing effect on flocculate are reduced. 本实用新型公开一种锅炉给水预处理装置，包括折流反应器、竖流澄清器和外压式纤维膜生物反应器，所述折流反应器的侧端面设置有用于吸附污泥的竖流澄清器。本实用新型中折流反应器折流混合反应充分、药剂加入点分置，有利于药剂的充分利用，减少药剂用量和残留，减少强制搅拌的能耗以及对絮凝物的剪切作用。