Cooling device for cooling water circulation of centrifugal pump mechanical seal

The utility model relates to the technical field of centrifugal pump mechanical seals, and discloses a cooling device for centrifugal pump mechanical seal cooling water circulation, which comprises a water storage tank, a cooling water inlet pipe, a cooling water return pipe, a water replenishing pipe, a liquid level meter, a water inlet pump, a blow-down valve and a water replenishing pump, the cooling water inlet pipe and the cooling water return pipe are arranged at the upper part of the side surface of the water storage tank; the water replenishing pipe is arranged at the upper part of the side surface of the water storage tank and is lower than the cooling water inlet pipe and the cooling water return pipe; the liquid level meter is arranged on the side face of the water storage tank and used for measuring the liquid level in the water storage tank. The water inlet pump is arranged at the inner bottom of the water storage tank and is used for ensuring the flow and pressure required by cooling water; the