Cooling water circulating device

The utility model relates to the technical field of biotechnology production, and discloses a cooling water circulation device which comprises two supporting seats, biotechnology production motors are arranged on the two supporting seats, a water receiving pool is arranged in the two supporting seats, and O-shaped supporting plates are fixedly connected to the two ends of the water receiving pool. A circulating water cooling device is arranged on the two O-shaped supporting plates, a cooling water circulating device and a water pump can input water flowing into a water receiving pool into a cooling water tank again, so that circulating cooling is completed, the outer surface of the biotechnology production motor can be uniformly cooled through operation of the structure, and the service life of the biotechnology production motor is prolonged. The conditions that a biotechnology production motor generates heat during operation, the service life is prone to being shortened, self-damage is caused and the biotech