Manufacturing method of metal-hydride hydrogen storage tank

Abstract

The invention relates to a manufacturing method of a metal-hydride hydrogen storage tank. The method includes the steps of machining of a tank body, machining of a flange cover, machining of foam copper elements, preparation of hydrogen storage alloy powder and assembly line assembling and production of the hydrogen storage tank. The hydrogen storage tank comprises parts including a round foam copper cover, a mat type copper net, a clamping sleeve type ball valve, an air pipe, a UJR joint, the flange cover, bolts, an O-shaped sealing ring, cooling fins, the tank body, the hydrogen storage alloy powder, a foam copper drum, a foam copper disk, a copper-water heating pipe, a foam copper cylinder and the like. The manufacturing method is high in production efficiency, high in yield and low inmanufacturing cost, the metal-hydride hydrogen storage tank manufactured with the method is simple in structure, high in space utilization rate, large in hydrogen storage amount, good in sealing performance, excellent in heat and mass transfer performance, high in hydrogen absorption and release speed and good in long-time use safety, breakage of the tank body due to hydrogen absorption expansionof a hydrogen storage material can be avoided, no cooling media are required to be introduced, repeated recycling can be realized, and the use cost is low.

Description

technical field [0001] The invention relates to a method for manufacturing a metal hydride hydrogen storage tank, belonging to the technical field of hydrogen storage. Background technique [0002] As a safe and efficient hydrogen storage method, reversible solid-state hydrogen storage systems using hydrogen storage materials as the medium have attracted increasing attention. Compared with traditional high-pressure containers and liquid hydrogen storage methods, the reversible solid-state hydrogen storage system has many outstanding advantages: high volume hydrogen storage density; hydrogen source is desorbed from hydrogen storage materials, which can produce 99.9999% ultra-high purity hydrogen, especially suitable for fuel cells Use; suitable hydrogen discharge temperature and pressure improve the application safety of the hydrogen storage system and reduce energy consumption. The hydrogen storage material is used as the hydrogen storage medium. During the cycle of hydroge...

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Problems solved by technology

The hydrogen storage tank manufactured by this hydrogen storage tank manufacturing method has a low space utilization rate, too low filter aperture leads to large airflow resistance, and the flow rate of hydrogen charging and discharging is not fast enough, so a cooling medium needs to be specially introduced for cooling. High-density, complex-structured pipelines have high requirements for welding construction, which may easily cause impermeable welding or missing welding, and there are potential safety hazards for leakage. The structure of the entire hydrogen storage tank is complex, and assembly line production cannot be realized. The production efficiency is low and the cost is high.

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