Cooling device of high-voltage power cable and heat exchange calculation method

The invention relates to a cooling device for a high-voltage power cable and a heat exchange calculation method, and the cooling device comprises a cable connecting piece, a heat conduction pipe, a water inlet pipe, a water return pipe and a water pipe connecting piece. The number of the cable connecting pieces is at least two, and the heat conduction pipe arranged between the adjacent cable connecting pieces is arranged to be in a spring shape and is installed on a high-voltage power cable in a winding mode. Effective heat exchange is formed between the cooling device and the high-voltage power cable, and the operation environment of the high-voltage cable is improved, so that the effects of improving the rated working current of the high-voltage cable, prolonging the service life of the cable and reducing line loss are achieved. The operation condition of the cable can be effectively monitored by controlling and monitoring the temperature of the circulating cooling water, the operation and maintenance risk