Heat exchanger for cooling power supply of ballast water treatment system

The utility model relates to a heat exchanger for cooling a power supply of a ballast water treatment system, which comprises a heat exchanger box body, a self-suction jet pump, a heat exchanger and a cooling liquid storage tank, and the heat exchanger box body comprises a power indicating lamp, an overheating indicating lamp, a protection indicating lamp, a cooling liquid outlet, a seawater inlet, a cooling liquid inlet and a seawater outlet. The cooling liquid storage tank comprises a floating ball liquid level switch, a cooling liquid supply port, an automatic exhaust valve, a cooling liquid inlet, a cooling liquid outlet and a discharge port and is connected with the self-suction jet pump and the heat exchanger. The ballast water treatment system power supply cooling device is suitable for ballast water treatment system power supply cooling, ensures that a power supply system works in a low-temperature environment, and ensures stable and continuous power supply of the power supply system. 本实用新型为一种压载水处理系统电