Cooling system for platinum channel

The utility model relates to a cooling system for a platinum channel, the cooling system comprises a water supply system, the water supply system comprises a water storage tank, the water storage tank comprises a tank body, the tank body is provided with a first water inlet, a second water inlet, a water return port and a water outlet, the first water inlet is connected with a pure water source through a first water inlet branch, and the second water inlet is connected with a second water outlet through a second water inlet branch; the second water inlet is connected with a tap water source through a second water inlet branch, the water outlet is connected to the platinum channel through a water outlet branch, the platinum channel is connected to the water return port through a cooling loop, the water supply system further comprises a water return branch, one end of the water return branch is connected to the water outlet, and the other end of the water return branch is connected to the water outlet. The othe