The invention discloses a welded
pipe air tightness detection
system and a detection process thereof, and belongs to the technical field of welded
pipe detection. The welded
pipe air tightness detection
system comprises a feeding device, a detection water tank, a clamping
assembly, a water tank turnover device, a
water pressure supercharging device and a discharging table. The feeding device is arranged on the ground, and the water tank turnover device is installed at one side of the feeding device; the detection water tank is mounted at the top of the water tank turnover device, the clamping
assembly is mounted in the detection water tank, the
water pressure supercharging device is mounted at one side of the feeding device, and the discharging table is arranged at the side, away from the feeding device, of the detection water tank. According to the method, the two ends of a welded pipe are blocked, the welded pipe is placed in the detection water tank filled with water, the detection time is set to be five minutes, the
water pressure in the detection water tank is increased, the welded pipe is taken out after five minutes, the water in the detection water tank is pumped out, and the water inflow amount entering the welded pipe is calculated by comparing the reduction amount of the water amount, so that whether the
air tightness of the welded pipe is qualified or not is judged through the method.