Heat dissipation electric power device with good heat dissipation effect for electric power engineering

The invention provides a heat dissipation electric power device for electric power engineering, which has a good heat dissipation effect and comprises an electric power cabinet, the electric power cabinet is connected with electric power equipment, a shielding assembly, a heat dissipation mechanism and a cooling device, and the shielding assembly, the heat dissipation mechanism and the cooling device are connected with the shielding assembly. The cooling device comprises a water storage tank, a condensation pipe, a roller, a large gear, a small gear, a generator and a water pump, the water pump is connected with the electric power cabinet through a pipeline, the electric power cabinet is provided with a first cavity, the first cavity is connected with a water inlet pipe, the water inlet pipe is connected with a switch valve, and an L-shaped plate is fixed to the roller. The temperature is detected through the temperature sensor, water is cooled through the condensation pipe, water in the first cavity naturall