Erosion corrosion testing device

The invention provides an erosion corrosion testing device. The erosion corrosion testing device comprises a liquid storage tank, a cover plate, a sealing plate, a sealing assembly and a testing assembly, wherein the cover plate covers the liquid storage tank, a mounting hole is formed in the cover plate, the sealing plate is mounted in the mounting hole, and the sealing plate can move in the axial direction of the mounting hole. The sealing assembly comprises an air bag ring and an inflation tube, the air bag ring is fixed to the inner side wall of the cover plate, the inflation tube is connected to the air bag ring, and the air bag ring is tightly attached to the outer side wall of the sealing plate after being inflated; the test assembly comprises a sample electrode, an auxiliary electrode and a reference electrode, and the sample electrode, the auxiliary electrode and the reference electrode are all mounted on the sealing plate and extend into the liquid storage tank; wherein the reference electrode is po