On-line detection system for defects of membrane electrode assembly

An on-line detection system for defects of a membrane electrode assembly (MEA), comprising a workbench, wherein

• two connecting rods are arranged inside the workbench, two ends of the two connecting rods are both connected to two side walls of the workbench by means of first bearings,
• two conveying rollers are fixedly arranged outside the two connecting rods in a sleeving manner, one side of the workbench is fixedly provided with a first electric motor, an output end of the first electric motor is fixedly connected to one of the two connecting rods,
• two belt pulleys are fixedly arranged outside the two connecting rods in the sleeving manner, a belt is arranged outside the two belt pulleys in the sleeving manner, a hollow roller is arranged on an inner side of the workbench, each of both sides of the hollow roller is fixedly connected to first ends of two fixing rods, second ends of the two fixing rods are fixedly connected to the side wall of the workbench,
• a plurality of exhaust holes are provided in a top of the hollow roller, a first end of the hollow roller is fixedly connected to an hydrogen input pipe, a second end of the hollow roller is fixedly connected to an hydrogen output pipe, the hydrogen output pipe and the two fixing rods both penetrate the side wall of the workbench,
• tops of the two conveying rollers are provided with the MEA, the MEA makes contact with the top of the hollow roller, and a uniform hydrogen output mechanism is arranged inside the hollow roller.