Rotary tank sealing performance detection device and use method thereof

The invention relates to a rotary tank sealing performance detection device and a use method, the rotary tank sealing performance detection device comprises an air tightness detector, the air tightness detector is connected with a pressure plate through a connecting air pipe, an air inlet of the connecting air pipe is provided with an air inlet sealing gasket, and the pressure plate is also provided with a nozzle boss sealing gasket; the pressing plate is driven by the downward-pressing push cylinder to move and is in rotating fit with a telescopic rod of the downward-pressing push cylinder, and one end of the guide rod is connected with the tank clamp. The tank body clamp comprises a bottom plate connected with the guide rod, a rotating disc is rotatably arranged on the bottom plate, a gear ring is arranged on the outer edge of the rotating disc, the gear ring is meshed with a first gear, and the first gear is driven by a rotating rod and a rotating driving device to rotate; a back face supporting piece and