Flexible frame structure for heat preservation and bearing of flue gas heat exchanger collection box and separate tubes

The invention discloses a flexible frame structure for heat preservation and bearing of a flue gas heat exchanger collection box and flue gas heat exchanger separate tubes, and belongs to the technical field of boiler flue gas equipment. The flexible frame structure for the heat preservation and the bearing of the flue gas heat exchanger collection box and the flue gas heat exchanger separate tubes aims at improving the heat preservation effect of the flue gas heat exchanger collection box and the flue gas heat exchanger outlet separate tubes in a boiler SCR (selective catalytic reduction) denitrification system. The flexible frame structure for the heat preservation and the bearing of the flue gas heat exchanger collection box and the flue gas heat exchanger separate tubes comprises the flue gas heat exchanger collection box, the flue gas heat exchanger outlet separation tubes, rooting plates and frame profile steels, wherein the rooting plates are respectively installed on a rear flue rear enclosure wall of