Device and method for detecting dynamic sealing performance of pressure-bearing end cover flange

The invention belongs to the technical field of impact dynamics, and particularly relates to a device and a method for detecting dynamic sealing performance of a pressure-bearing end cover flange. The device for detecting the dynamic sealing performance of the pressure-bearing end cover flange comprises a hydraulic cylinder, a piston and an end cover, wherein the piston is mounted at one end of the hydraulic cylinder; a flange for mounting the end cover is arranged at the other end of the hydraulic cylinder; the end cover is connected with the flange through bolts; a sealing structure is arranged between the end cover and the flange; a pressure sensor is arranged at the center of the end cover; a displacement sensor is arranged between the end cover and the flange; strain gauges are axially adhered to the bolts used for connecting the end cover with the flange; and a wire guiding slot for guiding out conductive wires of the strain gauges is further formed in the end cover. Through the device and the method, a