Device for on-line recovering and purifying helium in inner capsule of aerostat

Abstract

The invention relates to a device for on-line recovering and purifying helium in the inner capsule of an aerostat, characterized in that: the inlet of the helium compressor of the device is communicated with a low pressure recovery pipeline, the outlet is communicated with the inlet of a drying filter through pipelines, and the outlet pipeline of the helium compressor is provided with a safety relief valve and is connected with an air supply valve and a check valve in series; the outlet of the drying filter is communicated with the inlet of a helium purifier through pipelines, the outlet of the helium purifier is communicated with a high pressure helium-filled flexible pipe, the high pressure helium-filled flexible pipe is connected with an air-release valve, and the outlet of the helium purifier is communicated with a purity detection unit through a three-way pipe. According to the invention, the helium recovery and purification are combined organically, the purification of the helium in the inner capsule of the aerostat can be realized without completely recovering the aerostat, so that the continuous working time after the air inflation of the aerostat is effectively prolonged, the cost of recovering the aerostat is saved; the single purification rate of helium is high, the purity of the purified helium can reach to 98 %, the rate of increase of the single purification is larger than 3%, and the rate of helium loss in the process of recovery and purification is no larger than 5 %.

Description

technical field [0001] The invention belongs to the technical field of aerostats, in particular to a device for on-line recovery and purification of helium in an aerostat inner bag. Background technique [0002] An aerostat (balloon, airship, etc.) is an aircraft that completely relies on its own static buoyancy to lift into the air, and its static buoyancy is usually provided by helium filled inside. For an aerostat filled with helium, the purity of the internal helium directly affects its net lift, thereby affecting its flight performance. When the aerostat works at a fixed point at a certain height, the lift-off time is mainly restricted by the buoyancy generated by the helium in the inner bag. If the purity of the helium drops, the buoyancy will decrease and the working height of the aerostat will drop, and the mission system will fall back. Thereby shortening the effective continuous air time of the aerostat, which will directly affect the actual use effect of the aero...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current situation that the recovery and purification of helium gas in the inner bag of the aerostat are isolated from each other, the present invention provides a high-efficiency, strong operability, which can greatly improve the comprehensive utilization rate of the scarce helium filled in the aerostat. A device for on-line recovery and purification of helium in the inner bag of the aerostat

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