Rapid cooling device for solar hydrogen production

The invention discloses a rapid cooling device for solar hydrogen production. The device comprises a cooling tank, a heat transfer pipe accommodated in the cooling tank and a cold fluid for a fluid in the heat transfer pipe, wherein the inner cavity space of the cooling tank is dynamically divided into a lower airflow chamber and an upper internal pressure chamber by a lifting plate, the heat transfer pipe and the cold fluid are both positioned in the airflow chamber, a hot fluid inlet pipe and a hot fluid outlet pipe are installed on the two opposite side surfaces of the cooling tank respectively, valves are installed on the hot fluid inlet pipe and the hot fluid outlet pipe respectively, the hot fluid inlet pipe and the hot fluid outlet pipe are fixedly connected with the two ends of the heat transfer pipe respectively, the end, away from the hot fluid inlet pipe, of the heat transfer pipe is changed into a horizontal state from a vertical state, hot fluid is input through the hot fluid inlet pipe and outpu