High-pressure oxygen four-level compression preparing method for helicopter

Abstract

A high-pressure oxygen four-level compression preparing method for a helicopter comprises a servo motor. The servo motor is connected with a lead screw through a planetary reducer, the lead screw is fixed to a rack, and a lead screw nut of the lead screw is in rigidity connection with a push plate. Sliding blocks fixed to the bottoms of the two ends of the push plate are matched with guide rails fixed to the upper surface of the rack. The two ends of the push plate are connected with piston rods of air cylinders. Rodless cavities and rod cavities of the two air cylinders are connected with one-way valves, and the one-way valves are in communication through interstage pipelines so that four-level compression can be formed. By means of the high-pressure oxygen four-level compression preparing method, the low-pressure oxygen can be pressurized to be in the high-pressure state, and the high-pressure oxygen four-level compression preparing method has the beneficial effects that the structure is compact, the weight is small, and the method can adapt to different oxygen flow occasions.

Description

technical field [0001] The invention belongs to the technical field of oxygen compression, in particular to a high-pressure oxygen four-stage compression preparation device for helicopters. Background technique [0002] my country is a country with many plateaus. The plateau has unique geographical conditions and natural environment. Among them, the factor that has the greatest impact on the human body is the low partial pressure of oxygen. The hypoxic environment poses the greatest physiological threat to military activities on the plateau. With the changes in the surrounding situation of our country and the change of the main potential combat direction of our army, the opportunities for helicopters to enter plateau airports or even plateau civilian airports without support capabilities will increase. To adapt to work effectively in various environments such as high altitude and night vision, helicopter pilots must be equipped with an oxygen system to maintain their working...

AI Technical Summary

Problems solved by technology

However, this type of booster pump needs compressed air as the driving air source, so it must be equipped with an air compressor

There are many disadvantages in this scheme: (1) The air compressor and the oxygen booster pump are two separate components, and the structure is scattered, which is not conducive to the integration of the system

(2) The air compressor driven by an AC asynchronous motor can only output a constant flow of compressed air, which in turn leads to a constant flow of oxygen output by the booster pump, which cannot adapt to the variable flow of oxygen

(3) Atmospheric pressure in the high-altitude environment has a large drop, so a higher-power air compressor must be equipped to pressurize the low-pressure air to the driving pressure required by the booster pump

The flange is designed as a disc structure, which may cause large axial deformation, which is not conducive to the guidance of the piston rod

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