Self-sealing heat exchange tube high-efficiency pressure test device

The utility model discloses a self-sealing heat exchange tube high-efficiency pressure test device, which comprises a base and two supports symmetrically fixed on two sides of the base, a plurality of U-shaped grooves are processed on the supports at intervals, and a pressure test mechanism is arranged between every two corresponding U-shaped grooves. Each pressure test mechanism comprises a heat exchange tube and hollow joints arranged at the two ends of the heat exchange tube, one end of each hollow joint is inserted into the end part of the heat exchange tube, an annular groove is formed in the outer wall of the hollow joint inserted into the end part of the heat exchange tube, the annular groove is hermetically connected with the inner wall of the heat exchange tube through an O-shaped ring, and the hollow joints are placed in U-shaped grooves of the supports; the hollow joint on the inner side of the U-shaped groove is in threaded connection with a nut, the hollow joint on the outer side of the U-shaped