High-temperature and high-pressure container elastic sealing structure

The utility model discloses a high-temperature and high-pressure container elastic sealing structure. The high-temperature and high-pressure container elastic sealing structure comprises a cylinder body provided with an inner ring table and a sealing cover provided with an outer ring table, wherein the lower side of the outer ring table of the sealing cover is placed on the upper side of the inner ring table of the cylinder body; a compressing top cover is sleeved at the periphery of the sealing cover; the outer wall of the compressing top cover is in screw thread fit with the inner wall of the cylinder body; the lower end face of the compressing top cover and the upper side of the outer ring table of the sealing cover are matched in a supporting and fastening manner; a metal elastic ring is also embedded in the cylinder body and is located below the sealing cover; the end face of the top part of the metal elastic ring is connected to the bottom of the sealing cover through a bolt; a radial sealing ring is ar