Internal-through type eddy current detecting equipment for detecting tubes

The invention discloses internal-through type eddy current detecting equipment for detecting tubes. The internal-through type eddy current detecting equipment comprises an eddy current flaw detector, a probe, a supporting frame and a gas source, wherein a tube to be detected is horizontally arranged on one side of the eddy current flaw detector; the probe is arranged inside the tube to be detected; the probe comprises a probe body which is adaptive to a shape of an inner wall of the tube to be detected; a detecting coil is wound on the probe body along the length direction of the probe body; the eddy current flaw detector is connected with the detecting coil by a power wire; the supporting frame is arranged at one end of the tube to be detected close to the eddy current flaw detector; one end of the supporting frame extends to the tube to be detected; a strip-shaped groove for getting through the power wire is arranged on the outer surface at the upper part of the supporting frame; a gas through hole is arran