High pressure helium charging device for aerostat

Abstract

The invention relates to a high pressure helium charging device for an aerostat. The high pressure helium charging device comprises a pressure-reducing mechanism and a charging pressure expanding mechanism, wherein the pressure-reducing mechanism comprises an air inlet nozzle, a pressure-reducing one-way valve cover, a pressure-reducing spring bracket and a pressure-reducing compression spring; and the charging pressure expanding mechanism comprises a helium charging valve seat, a charging one-way valve, a charging spring bracket and a charging compression spring. The maximum helium charging pressure can reach 20 MPa, the maximum helium charging flow of a single device is greater than 0.5 cube / second, and a plurality of devices are used by connecting in parallel, so that the helium charging speed of the aerostat can be greatly improved; the pressure-reducing mechanism has an effect of greatly releasing pressure of high-pressure helium at an inlet; and the charging pressure expanding mechanism has effects of releasing the pressure of a gas of which the pressure is reduced once again, and guiding air flow to be released so as to prevent overlarge impact on nearby aerostat envelope materials. The high pressure helium charging device has a simple and compact structure and can be manually adjusted and assembled; and the high pressure helium charging device has high air tightness, so the gas does not leak in the process of charging helium.

Description

technical field [0001] The invention belongs to the technical field of helium filling equipment for helium-filled aerostats (tethered balloons, airships, etc.), and in particular relates to a high-pressure helium-filling device for aerostats. Background technique [0002] An aerostat is an aircraft filled with a light gas such as helium. At present, the low-pressure helium filling mode is adopted for filling helium in the aerostat, that is, a decompression device is added at the outlet end of the high-pressure helium storage container. In the helium bladder of the empty device. Due to the low pressure of the gas source, the low-pressure helium filling speed is limited, and the low helium filling speed will directly affect the safety of the aerostat during the helium filling and forming process. When using the low-pressure helium filling method to fill helium into a larger aerostat, the diameter of the transfer hose usually needs to be designed to be large, and the transfer...

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Problems solved by technology

[0003] In order to solve the problems of the current low-pressure helium filling of the aerostat, such as the large diameter of the transmission hose and the slow helium filling speed, the present invention provides a method that greatly improves the helium filling speed of the aerostat, and the maximum helium filling pressure can reach 20MPa. High pressure helium filling unit for aerostats with small transfer hose size

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