Heat exchange device for flue gas waste heat recovery of thermal power plant

The utility model discloses a heat exchange device for flue gas waste heat recovery of a thermal power plant, and relates to the field of flue gas waste heat recovery of the thermal power plant. The flue gas heat exchanger comprises a heat exchange chamber, a sliding groove is formed in the inner wall of the heat exchange chamber, a worker adjusts the height of a heat collection plate according to the diameter of a flue gas pipe, the heat collection plate is lifted through a handle, then the flue gas pipe is inserted into a flue gas pipe cavity, a heat insulation plate is in an arc shape, and the flue gas pipe can be stably placed on the heat insulation plate; then the heat collection plate is put down, a heat conduction plate on the inner side of the heat collection plate is attached to the flue gas pipe under the action of a first spring and a rotating shaft, when high-temperature flue gas passes through the flue gas pipe, the flue gas pipe is heated, heat of the flue gas pipe is conducted to the heat colle