Firstly, storage containers are indispensable key equipment in liquid hydrogen transportation. Liquid hydrogen needs to be stored at very low temperatures, and storage containers are usually constructed with double-wall vacuum insulation to keep the liquid hydrogen cold. The design and manufacture of storage containers need to follow strict safety standards to ensure the tightness and structural strength of the containers, thus effectively avoiding the risk of liquid hydrogen leakage and container rupture.

Secondly, gasification equipment is also one of the key equipment in the process of liquid hydrogen transportation. Liquid hydrogen needs to be gasified into a gas form before use. Gasification equipment converts liquid hydrogen into a gas form by exposing it to certain temperature and pressure conditions for easier use and transportation. The design of the gasification equipment needs to take into account the characteristics of hydrogen to ensure the safety and efficiency of the gasification process.

In addition, compressors are also essential equipment in the process of liquid hydrogen transportation. In the process of transporting liquid hydrogen, due to its low density, it needs to be compressed to reduce the originally large volume. By increasing the pressure of hydrogen to the required transport pressure, the compressor also improves the efficiency of transport.

Finally, cooling equipment is also indispensable in the liquid hydrogen transport process. Due to the extremely low temperature characteristics of liquid hydrogen, it is necessary to continuously maintain the low temperature state of liquid hydrogen through cooling equipment to avoid vaporization and leakage of liquid hydrogen. The cooling equipment uses special refrigerant or refrigeration technology to ensure that the temperature of liquid hydrogen is kept within a safe range.

In summary, the key equipment during liquid hydrogen transportation includes storage vessels, gasification equipment, compressors, and cooling equipment. The design and manufacture of these devices requires strict compliance with safety standards to ensure the safe and stable transportation of liquid hydrogen, which plays an important role in the development of the energy sector.