Fuel cell radiator conductivity control method

The invention discloses a method for controlling the conductivity of a fuel cell radiator. The method comprises the following steps: S1, a large-flow rough washing step; s2, pressurizing and rough washing; s3, filtering and rough washing; s4, a small-flow fine washing step; s5, pressurizing and fine washing; s6, filtering and fine washing; and S7, blowing and drying. The radiator has the main beneficial effects that the design is exquisite, large-flow circulating water is used for washing in positive and negative turns, rough washing dead angles of the radiator are avoided, and particle impurities in the radiator are washed out of the radiator. Compressed air enters the radiator to form a mixed cyclone of circulating water and compressed air to impact stubborn impurities and large-particle impurities on the inner wall of the radiator. And the filter can filter impurities washed out from the interior of the radiator, so that the cleanliness of circulating water in the rough washing barrel is guaranteed, and th