Clamping and fixing device for cleaning heat exchanger of heat supply network of thermal power plant

The utility model relates to the technical field of heat supply network heat exchanger maintenance, in particular to a clamping and fixing device for cleaning a heat supply network heat exchanger of a thermal power plant, which is convenient for clamping and fixing a plate-shaped workpiece detached from the heat supply network heat exchanger by arranging a clamping and fixing mechanism, prevents the workpiece from being directly lapped on the ground to be adhered with soil in the cleaning process, and improves the cleaning efficiency. The use practicability is improved; comprising a movable supporting frame, a clamping supporting frame and a clamping and fixing mechanism, the clamping supporting frame is fixedly installed on the movable supporting frame, and the clamping and fixing mechanism is fixedly installed on the clamping supporting frame and used for clamping and fixing the plate-shaped component of the heat supply network heat exchanger; the clamping and fixing mechanism comprises a mounting cross bea