Hydrogen refueling stations based on low-temperature and high-pressure graded hydrogen storage and gaseous hydrogen refueling methods thereof

A hydrogen refueling station based on low-temperature and high-pressure graded hydrogen storage, comprising:

• a liquid hydrogen storage tank;
• hydrogen storage vessels, wherein a number of the hydrogen storage vessels is n, n≥2, and the hydrogen storage vessels are low-temperature and high-pressure hydrogen storage vessels;
• a booster pump and a high-pressure vaporizer, disposed between the liquid hydrogen storage tank and the hydrogen storage vessels, wherein,
• the booster pump is configured to pressurize low-temperature and low-pressure liquid hydrogen output by the liquid hydrogen storage tank into low-temperature and high-pressure liquid hydrogen, and
• the high-pressure vaporizer is configured to vaporize the low-temperature and high-pressure liquid hydrogen output by the booster pump into low-temperature and high-pressure gaseous hydrogen, adjust a temperature of the low-temperature and high-pressure gaseous hydrogen to a set temperature, and store the low-temperature and high-pressure gaseous hydrogen into the hydrogen storage vessels;
• wherein a temperature value and a maximum pressure value of the low-temperature and high-pressure gaseous hydrogen stored in the hydrogen storage vessels are Tn and Pn;
• when n=2, T1<T2, P1<P2;
• when n≥3, T1< . . . T(n-1)<Tn and P1< . . . P(n-1)<Pn;
• a hydrogen dispenser, and
• a main refueling pipe, configured to communicate the hydrogen storage vessels with the hydrogen dispenser and provided with a refueling controller;
• wherein the refueling controller is configured to, based on an ascending order of the temperature values, sequentially control corresponding hydrogen storage vessels to communicate with the hydrogen dispenser for participation in a refueling operation.