Low-cost, high-hydrogen-absorption-and-desorption-speed and high-safety metal hydride hydrogen storage tank

Abstract

The invention relates to a hydrogen storage technology, in particular to a low-cost, high-hydrogen-absorption-and-desorption-speed and high-safety metal hydride hydrogen storage tank. The hydrogen storage tank mainly comprises a round foam metal cover, a gas pipe, a flange cover, bolts, an O-shaped sealing ring, cooling fins, a tank body, hydrogen storage material powder, a round foam metal barrel, a foam metal disc, a heat pipe and a foam metal cylinder. The metal hydride hydrogen storage tank is simple in structure and easy to realize, the condition that metal hydride powder flows out of thegas pipe with the gas flow to damage downstream components can be prevented, the hydrogen storage tank has the excellent heat and mass transfer performance, and thus the hydrogen storage tank has thehigh hydrogen absorption and desorption speeds. Besides, according to the hydrogen storage tank, damage to the tank body of the hydrogen storage tank due to self-compaction and hydrogen absorption expansion of the metal hydride powder can be avoided, so that the hydrogen storage tank is high in safety and can be used repeatedly.

Description

technical field [0001] The invention relates to a metal hydride hydrogen storage tank with low cost, high hydrogen absorbing and releasing speed and high safety, belonging to the technical field of hydrogen energy. Background technique [0002] With the gradual shortage of fossil energy and the serious deterioration of environmental pollution, people pay more and more attention to the use of clean hydrogen energy. In the process of using hydrogen energy, hydrogen storage is inevitably involved. Hydrogen storage technologies mainly include: high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, and solid-state hydrogen storage using chemical reactions of hydrogen storage materials. High-pressure gaseous hydrogen storage has problems such as low volume hydrogen storage density, high operating pressure, expensive containers and hydrogenation facilities, and poor safety. However, low-temperature liquid hydrogen storage has problems such as the volume ...

AI Technical Summary

Problems solved by technology

This kind of hydrogen storage tank is difficult to manufacture, has poor versatility, cannot be reused, and needs to be fed with cooling water during use, which is inconvenient and cannot completely solve the deterioration of heat and mass transfer performance during use and the impact of hydrogen absorption expansion. The impact of extrusion damage caused by the container wall can only be said to be partially alleviated during the initial hydrogen absorption and desorption cycle, and will still cause damage to the tank during the long-term hydrogen absorption and desorption process.

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