Micro high-pressure compressor

Abstract

The invention discloses a micro high-pressure compressor. High-pressure gas is output outwards through variable-section multi-stage piston type compression, rod cavities of cylinders are utilized forcompressing refrigerating fluid by combining the refrigerating principle of an air conditioner, and a capillary tube and an interstage gas storage cavity are machined on the air cylinders and a valveplate; and meanwhile, a fan, a condenser, an expansion valve, a liquid storage tank, a cooling gas inlet one-way valve and a cooling exhaust one-way valve are additionally mounted into the system to form a cooling loop, the refrigerating fluid is utilized for cooling the cylinders and interstage gas, and therefore the compressor is cooled by itself when compressing gas. By means of the cooling manner, the structure is compact, the size and weight are small, high cooling efficiency is achieved, the compressor can be basically in an isothermal compression process, and therefore the size and weight of a cooling system are greatly reduced; and it can be guaranteed that the cooling system works stably and efficiently for a long time, and therefore microminiaturization design of the high-pressure compressor is achieved.

Description

technical field [0001] The invention relates to a miniature high-pressure compressor, which mainly works continuously, stably and efficiently on equipment with limited weight and volume such as fighter planes, submarines and special vehicles, and provides high-pressure gas for them. Background technique [0002] As a common utility in industrial production, compressors consume more than 10% of the power consumed by industrial systems in many countries, especially high-pressure compressors are widely used in aerospace, petrochemical, energy storage and other fields. Widely used, and with the continuous improvement of industrial environmental protection requirements, its application fields are rapidly expanding. Due to the large pressure ratio of the high-pressure compressor, a large amount of heat will be generated during the compression process, the compression efficiency can only reach 10%-20%, and as high as 80%-90% of the electric energy is converted into heat energy. If...

AI Technical Summary

Problems solved by technology

If the heat is not dissipated in time, it will not only cause a rapid decrease in compression efficiency, but also cause a rapid increase in cylinder temperature, increase in thermal stress and thermal deformation, increase in leakage, and even cause mechanical failures such as seal failure.

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