DEVICE AND METHOD FOR LEAKAGE DETECTING OF CRUDE OIL TANK FLOOR

A device and method for leakage detecting of a crude oil tank floor are provided, the leakage detection field of oil storage tank base plates is related to. The device comprises a control system, a detection robot and a plurality of acoustic signal receivers. The acoustic signal receivers and the control system are all arranged outside a crude oil tank. The control system is arranged outside the crude oil tank. The acoustic signal receivers are all connected with the control system. When the crude oil tank is detected, the detection robot is arranged in the crude oil tank. The detection robot comprises a moving mechanism, a positioning sonar and an array leakage detection sensor. The positioning sonar and the array leakage detection sensor are both arranged on the moving mechanism. The acoustic signal receivers are used for receiving sonar signals sent by the positioning sonar. The array leakage detection sensor is used for detecting a leakage point of the crude oil tank. The present disclosure can solve the problems that a signal of a floor leakage inside a large crude oil tank is weak and cannot be received by a sensor outside the tank.