Deep cold insulating layer with modified polyurethane foam

The utility model relates to a modified polyurethane foam plastic deep cold-heat insulation new type structure layer, comprising a deep cold-heat insulation body 1, a drift anastomosis layer 2 on the deep cold-heat insulation body, a heat insulation layer 3 on the upper part of the drift anastomosis layer 2, a waterproof and moistureproof layer 4, a fireproof layer 5 and a full-closed external protective layer 6 above the fireproof layer 5; wherein, the drift anastomosis layer 2 adopts glass felt material; the heat insulation layer 3 is connected with the modified polyurethane foam plastic; the waterproof and moistureproof layer 4 is bonded with the upper part of the heat insulation layer 3; the waterproof and moistureproof layer 5 adopts aluminum foil glass wool or polyethylene film material; the fireproof layer 5 is anastomosed with the upper part of the waterproof and moistureproof layer 4 and adopts ceramic wool material; the full-closed external protective layer 6 is formed by adopting thin zinc plating iron sheet, aluminum sheet or stainless steel sheet.