Compound super insulation fire glass of multilayer

The utility model discloses a compound super insulation fire glass of multilayer, include back the font frame, it has set gradually a glass in the font frame to return, the 2nd glass and the 3rd glass, it is provided with heat transfer portion to go back to font frame bottom, heat transfer portion includes the heat exchanging groove body, internal fin and the air cycle pump of being provided withof heat exchanging groove, the gas outlet and the check valve of air cycle pump are connected, the sealed intracavity of keeping apart of second between the 2nd glass and the 3rd glass can be gone into with the internal gas pump of heat exchanging groove to the air cycle pump, the heat exchanging groove position is provided with a plurality of refrigeration pieces on the surface of glass one side,a surface and the fin butt of refrigeration piece set up, the heat exchanging groove body still is provided with the circulation with the sealed isolation intracavity of second and leads to, the sidesurface is provided with t