Bypass pipe device for uniform water distribution of cooling tower group and cooling tower group

The utility model relates to a by-pass pipe device for uniform water distribution of a cooling tower group and the cooling tower group, the cooling tower group is provided with a water inlet header pipe, the cooling tower group comprises a plurality of cooling towers, the cooling towers are transversely distributed side by side and are sequentially far away from the water inlet end of the water inlet header pipe, the upper end of each cooling tower is provided with a water distribution disc, and the water distribution disc is provided with a water outlet. The top end of the cooling tower is provided with water inlet pipes on the upper side of the center of the water distribution disc, and the water inlet pipes are sequentially connected to the water inlet header pipe in parallel; the bypass pipe device comprises a transverse branch pipe which is transversely arranged among all the cooling towers and is lower than the water distribution disc; the bottom ends of the longitudinal branch pipes are communicated to