High temperature high pressure extraction tank

The utility model discloses a high temperature high pressure extraction tank, comprising a tank and a tank cover. An insulating layer is fixed on an inner wall surface of the tank; an inner wall surface of the insulating layer is fixedly provided with a heating plate; the heating plate comprises a metal panel, a first heating body and a thermal insulation plate. The bottom of the tank is provided with a heating seat; a lower end of the heating seat is provided with an object placing cavity; a central section of the heating seat is integratedly provided with a cylindrical projection. The center of the cylindrical projection is provided with a cylindrical cavity; the cylindrical cavity and the object placing cavity are communicated, and are both internally fixedly provided with a second heating body; the first heating body and the second heating body are both carbon fiber lines. A lower end of the heating plate and the heating seat are in sealing connection; the lower end surface edge of the tank cover is provided with a loop of magnets; the tank cover is adsorbed to an upper end port of the tank body through the magnets. In the technical scheme, the heating plate and the heating seat are both arranged in the tank; the insulating layer has a reasonable structure; the high temperature high pressure extraction tank has the characteristics of simple structure, fast heating, less energy consumption, and good extraction effects.