Storage tank sealing performance testing device

The invention discloses a storage tank sealing performance testing device, and relates to the technical field of sealing performance testing equipment, the storage tank sealing performance testing device comprises a left side plate, a right side plate, a conveying mechanism, a pressurization mechanism, a sealing mechanism and a detection mechanism, the detection mechanism used for testing the sealing performance of a storage tank is arranged below the middle of the left side plate and the right side plate, and the detection mechanism comprises a water storage tank capable of storing water; conveying mechanisms for conveying storage tanks are horizontally arranged at the upper ends of the left side plate and the right side plate; a pressurizing mechanism and a sealing mechanism are arranged between the left side plate and the right side plate and located above the detection mechanism, the pressurizing mechanism is used for filling the storage tank with gas, the sealing mechanism comprises a cover closing assem