Self-cooled water pipe for electrically-driven cooling system and engineering vehicle

The utility model discloses a self-cooled water pipe for an electrically-driven cooling system and an engineering vehicle. The self-cooled water pipe comprises a water pipe body, a thermoelectric refrigeration sheet and a thermoelectric generator, cooling liquid circularly flows in the water pipe body. The water pipe body, the thermoelectric refrigeration sheet and the thermoelectric generator are connected in sequence, and in the flowing direction of the cooling liquid, the cooling liquid flows through the thermoelectric generator and then flows through the thermoelectric refrigeration sheet; the thermoelectric refrigeration sheet and the thermoelectric generator are connected through a wire, and the thermoelectric generator provides electric energy for the thermoelectric refrigeration sheet. On the basis of a cooling water pipe of a traditional electrically-driven cooling system, the thermoelectric generator and the thermoelectric refrigeration sheet are additionally arranged, heat energy of cooling liquid