Hydrogenation pipeline air tightness detection device and detection method thereof

The invention relates to a hydrogenation pipeline air tightness detection device and a detection method thereof, and relates to the field of pipeline air tightness detection.The hydrogenation pipeline air tightness detection device comprises two detection rings, the two detection rings are used for being connected to the pipe walls of the sides, close to each other, of two adjacent hydrogenation pipelines in a sleeving mode, and the two detection rings correspond to the two adjacent hydrogenation pipelines one to one; a detection air bag is arranged between the opposite side walls of the two detection rings, sealing connecting assemblies used for fixing the detection air bag are arranged on the opposite side walls of the two detection rings, and a sealing ring cavity is defined by the opposite side walls of the two detection rings and the opposite side walls of the two adjacent hydrogenation pipelines; the hydrogenation pipeline is provided with an automatic identification assembly used for detecting whether