CIP tank self-cleaning system

The utility model discloses a CIP tank self-cleaning system, which is characterized in that the top end of each CIP tank is provided with a liquid inlet, a liquid adding port and a clear water inlet, each clear water inlet is communicated with a clear water source, the bottom end of each CIP tank is provided with a liquid outlet, each liquid outlet is communicated with a ground discharge pipe, the side surface of each CIP tank is provided with a discharge port, each discharge port is communicated with a pump through a reversing valve, and the pump is communicated with a water pump. An outlet of the pump is communicated with a tubular heat exchanger, an outlet of the tubular heat exchanger is communicated with a liquid distribution disc, a plurality of outlets of the liquid distribution disc are respectively communicated with liquid inlets of a plurality of CIP tanks, and the ground discharging pipe is further communicated with the pump through a reversing valve. The circulating pipeline and the valve are addi