Launching method of supercritical carbon dioxide gas gun

Abstract

The invention discloses a launching method of a supercritical carbon dioxide gas gun. The launching method comprises the steps that 1, the gun barrel launching direction is adjusted; 2, a main gas chamber and an inner cavity of the rear end of a gun barrel at the rear end of a projectile body are vacuumized; 3, liquid CO2 is pressed into the main gas chamber; 4, CO2 is heated to a supercritical state; 5, a gas guide hole for communicating the main gas chamber with the inner cavity at the rear end of the gun barrel is opened; 6, the supercritical CO2 boosts a projectile support where the projectile body is placed to be launched; and 7, the projectile body is separated from the projectile support. According to the launching method, the phase transition characteristic of the carbon dioxide from a liquid state to a supercritical state is utilized, so that energy storage with higher power density is realized, and the emission period is short. Meanwhile, the carbon dioxide is stable in property and low in requirement on storage and transportation environments.

Description

technical field [0001] The invention relates to a launching method of a gas cannon, in particular to a launching method of a supercritical carbon dioxide gas cannon. Background technique [0002] The gas cannon is a device that uses the principle of aerodynamics, uses compressed gas as the working medium, and instantly converts the gas pressure energy into the air jet kinetic energy and generates a strong impact force by the differential pressure device and the quick exhaust valve that can realize automatic control. The gun has the ability to launch projectiles and other loads at high speed, and its shock loading can generate shock wave pressures of hundreds of MPa to hundreds of GPa in solid materials. The greater the gas pressure, the higher the acceleration of the instantaneously discharged airflow, the higher the kinetic energy of the air jet, and the stronger the impact force generated by the gas cannon. Utilizing the powerful driving force of the gas cannon explosion ...

AI Technical Summary

Problems solved by technology

However, cold launches at this stage also have many disadvantages: First, compressed air or light gas is mostly used for boosting in cold launches at this stage, but due to the gas characteristics of compressed air, a larger air compression device is required, and the preparation time is longer long, this will lead to an increase in the launch cycle, unable to keep up with the faster and faster pace of the battlefield

However, light gas is prone to explosion risk due to its unstable gas properties, and has high environmental requirements for storage and transportation. In many cases, it cannot meet its requirements, which leads to the reduction of its applicability.

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