Pressure vessel leakage detection device

The utility model belongs to the technical field of pressure vessel air pressure detection devices, and discloses a pressure vessel leakage detection device, the right side of a pressure vessel is provided with an air outlet, and a second pressure sensor is fixed near the air outlet through a bolt; a control valve is arranged on the air outlet, and the air outlet is connected with the second connecting screw head; a coiled pipe is welded to the upper end of the second connecting screw head, and the upper end of the coiled pipe is connected with a nozzle through a first connecting threaded head; a first pressure sensor is fixed to the lower end of the first connecting threaded head through a screw and connected with the controller through a data line. According to the utility model, the first pressure sensor and the second pressure sensor are arranged to detect the pressure values of the corresponding positions respectively, the controller compares the detected data, and if the difference value exceeds a speci