Birotor oppositely-rotating stamping gas compressor

Abstract

The invention belongs to the technical field of gas pressurizing and relates to a birotor oppositely-rotating stamping gas compressor. The birotor oppositely-rotating stamping gas compressor comprisesrotors and a stator. Each rotor is composed of an impeller and a shaft. The rotors include a front rotor and a rear rotor. The impeller of the front rotor is an inclined flow impeller or an ultrawidestring axial-flow impeller. The impeller of the rear rotor can be an axial-flow impeller and can also be an inclined flow impeller or a centrifugal impeller according to specific needs. The stator comprises a machine box, an air inlet, an air outlet pipe and other subsidiary facilities. According to the birotor oppositely-rotating stamping gas compressor, the mechanism of stamping compressing isintroduced to a rotor power type gas compressor, by means of opposite rotating of the two rotors, outlet airflow of the front rotor reaches the supersonic speed relative to the rear rotor, and therefore conditions are created for the rear rotor through stamping compressing, and high-pressure ratio output can be achieved; and the birotor oppositely-rotating stamping gas compressor has the beneficial effects of being simple in structure, high in compression ratio, relatively high in efficiency and the like, and the birotor oppositely-rotating stamping gas compressor can serve as independent gascompressing equipment to be used and can also serve as a component of other devices such as an aero-engine and a gas turbine.

Description

technical field [0001] The invention belongs to the technical field of gas boosting, and relates to a compressor, in particular to a dual-rotor counter-rotating stamping compressor. Background technique [0002] A compressor in a broad sense generally refers to a mechanical device that can increase the pressure of a gas, and it does work on the gas through a mechanical device, thereby increasing the gas pressure. Compressors can be widely used in various industries such as chemical industry, energy, machinery, and metallurgy as a single device, and can also be used as important components of power equipment such as gas turbines and aeroengines. [0003] At present, there are many types of compressors, which are mainly divided into two categories: positive displacement type and rotor power type. Increase the velocity of the gas to increase the dynamic pressure of the gas, and then convert the dynamic pressure to static pressure. Positive displacement compressors are divided...

AI Technical Summary

Problems solved by technology

Positive displacement compressors are divided into piston type, diaphragm type, scroll type, screw type compressors, etc. Rotor-powered compressors mainly include axial flow compressors and centrifugal compressors. Some The compressor is a combination of these two types of compressors, and there is another type of compressor between the axial flow type and the centrifugal type, which is called a diagonal flow compressor, but this type of compressor is not common in practical applications

[0004] There is also a compressor called a ram compressor. This compressor has a simple structure, only has an air inlet, and has no rotor. It mainly uses the ram compression of the inlet airflow for boosting, but this compressor usually only works at supersonic speeds. under the condition

[0005] Centrifugal compressor air flow mainly flows in the radial direction. It has the advantages of simple structure and high single-stage pressure ratio. It is widely used in various fields, but it has low efficiency, large windward area, and the maximum and minimum flow are limited by working conditions.

The air flow of the axial flow compressor mainly flows along the axial direction, which has the advantages of large flow rate and high efficiency, but has the disadvantages of low single-stage pressure ratio, many stages in high pressure ratio, and complicated structure.

Images