Floating type mechanical sealing device of circular cooler

A floating type mechanical sealing device of a circular cooler is characterized in that a first L-shaped sealing seat is mounted above an air bellow, a first friction plate is in floating connection with the first L-shaped sealing seat through a floating compensation mechanism, a limiting plate is fixed on the first friction plate, and a limiting block is fixed on a side plate of the first L-shaped sealing seat; the limiting block is matched with the limiting plate to limit the up-down floating distance of the first friction plate; the limiting plate and the baffle are fixed to the limiting block through the first bolt, and the distance formed between the limiting plate and the baffle after fixing is used for limiting the left-right distance of the limiting plate, so that the movement amount of the first friction plate in the horizontal direction is controlled, and the compression amount of the spring is changed by controlling the stretching amount of the adjusting screw rod; and the first friction plate is a