Aluminum and steel composite layer hydrogen storage tank and filament winding reinforced hydrogen storage bottle with aluminum and steel composite layer hydrogen storage tank as core

Abstract

The invention discloses an aluminum and steel composite layer hydrogen storage tank and a filament winding reinforced hydrogen storage bottle with the aluminum and steel composite layer hydrogen storage tank as a core. A barrel-shaped aluminum alloy with a certain wall thickness is adopted to form the inner layer of the hydrogen storage tank, the two ends of the hydrogen storage tank are semi-spherical shells which are continuously connected, cylindrical pipe joints are arranged at the two ends, making contact with the spherical surface, of the central axis of the cylinder and are smoothly transitioned to and integrated with the spherical surface, a standard internal thread is machined in the inner hole of each pipe joint, the outer surface of the aluminum alloy inner layer is tightly andcontinuously coated with a layer of steel with a certain thickness, the steel layer is a main pressure-bearing layer of the hydrogen storage tank, an aluminum liner can prevent the steel hydrogen embrittlement produced during hydrogen storage of the container, furthermore, the aluminum and steel composite layer hydrogen storage tank is adopted as the core, filament reinforced composite material winds around the outer surface, and therefore the pressure-bearing upper limit of the hydrogen storage tank can be larger than 1000 MPa, and the aluminum and steel composite layer hydrogen storage tankand the filament winding reinhanced hydrogen storage bottle with the aluminum and steel composite layer hydrogen storage tank as the core are easy to process, are suitable for large-scale production,and realizes an effect of promoting the arrival of hydrogen energy economy undoubtedly.

Description

technical field [0001] The invention relates to the field of pressure vessels, in particular to the technical field of mobile high-pressure hydrogen storage. . Background technique [0002] With the decreasing reserves of traditional fossil energy (coal, oil, natural gas) and the environmental pollution caused by the use of fossil energy, which directly threatens the survival and development of human beings, we should attach importance to and develop renewable and environmentally friendly energy and reduce CO2 emissions. It has become the consensus of governments of all countries. [0003] Hydrogen is a pollution-free clean energy, and hydrogen is also an ideal energy storage medium. At present, the research and development of electric vehicles powered by hydrogen fuel cells has attracted the attention of the world. The demonstration project using hydrogen fuel cells as a power station has also achieved a single unit of 8MW However, the hydrogen storage and transportation ...

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Problems solved by technology

[0003] Hydrogen is a pollution-free clean energy, and hydrogen is also an ideal energy storage medium. At present, the research and development of electric vehicles powered by hydrogen fuel cells has attracted the attention of the world. The demonstration project using hydrogen fuel cells as a power station has also achieved a single unit of 8MW However, the hydrogen storage and transportation technology is not yet perfect, which has become an obstacle to the development of the above-mentioned hydrogen fuel cell vehicles and hydrogen fuel cell power stations, and has become an obstacle to the economic development of hydrogen energy

[0004] Chinese patent 95223014.3 provides a "full double-layer medium and low pressure container", which is made of steel and is an all-steel hydrogen storage container. Because hydrogen atoms are the smallest atoms in known elements, hydrogen atoms are easily Enter the steel through the lattice gap of the steel and gather in the crack defects inside the steel. The increase of the hydrogen concentration in the crack defects will easily destroy the lattice structure of the steel, expand the cracks of the steel, and cause hydrogen embrittlement. The strength of the steel will decrease and damage the container

[0005] Chinese patent 200410017546.4 provides "50 liter carbon fiber full-winding reinforced aluminum lined hydrogen storage composite gas cylinder". The gas storage tank and the fixed hydrogen storage tank of the hydrogen filling station; the pressure of 35MP is also far from the 70MPa technology of the well-known vehicle-mounted mobile hydrogen storage tank in the world. battery life

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