High-pressure gas storage cylinder of fuel cell unmanned aerial vehicle and preparation method thereof

Abstract

The invention discloses a high-pressure gas storage cylinder of a fuel cell unmanned aerial vehicle and a preparation method thereof and solves the problem that the endurance performance of the unmanned aerial vehicle is seriously influenced due to high weight and low hydrogen storage density per unit weight in the prior art. The high-pressure gas storage cylinder of the fuel cell unmanned aerialvehicle is punched, drawn and molded by aluminum plates; the high-pressure gas storage cylinder comprises a front sealing head and a rear sealing head which are respectively molded at the front and the rear end and also comprises an aluminum inner container used for storing hydrogen gas, a cylinder opening formed in the front sealing head and a strength layer, wherein the strength layer is prepared from a carbon fiber-epoxy system composite material and is crossed, folded and wound on the outer wall of the aluminum inner container through circular, longitudinal, and spiral manners. The preparation method of the high-pressure gas storage cylinder comprises the following steps: step one, manufacturing the aluminum inner container; step two, winding the strength layer; and step three, coatinga photocurable resin layer. The high-pressure gas storage cylinder is simple in structure, scientific and reasonable in design, convenient to use, light in weight, excellent in pressure-resistant property and excellent in fatigue property, and is capable of effectively improving the endurance performance of the unmanned aerial vehicle.

Description

technical field [0001] The invention relates to a high-pressure gas storage bottle for a fuel cell unmanned aerial vehicle and a preparation method thereof. Background technique [0002] In the past two years, unmanned aerial vehicles have begun to spread from the military field to the civilian market, but the traditional lithium battery unmanned aerial vehicle has a limited range of application because its battery life is only about 30 minutes. In April 2016, UAV manufacturer Corbett Aviation officially released the world's first hydrogen-fueled multi-rotor industrial-grade UAV, which can last up to 273 minutes and is positioned in the fields of electric power, petrochemical, security, and fire protection. So far, many domestic manufacturers have begun to study fuel cell UAV technology. Among them, the filling capacity of hydrogen fuel and the quality of hydrogen storage cylinders are the key factors that determine the cruising range of UAVs. From the current development of...

AI Technical Summary

Problems solved by technology

In the early days, manufacturers mainly used 30MPa gas cylinders. The gas cylinders are heavy, and the hydrogen storage density per unit weight is only about 3%, which seriously affects the endurance performance of drones and limits the development of fuel cell drones.

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