Dual rotors translation type rotary compressing device

Abstract

The invention relates to the fields of gas compression, fluid conveyance and evacuation, in particular to a birotor translational rotary compressor. The birotor translational rotary compressor comprises a cylinder body, two translational pistons and two eccentric rotors, wherein the cylinder body comprises two round through holes, the joints of the two through holes are communicated with each other, the two translational pistons are respectively arranged on the eccentric rotors, the outer lateral surfaces of the translational pistons are tangential to the inner lateral surfaces of the throughholes; the two translational pistons are further provided with a sliding plate groove respectively, the two sliding plate grooves face to the joints respectively, a sliding plate is arranged between the two sliding plate grooves, the two ends of the sliding plate are respectively arranged in the sliding plate grooves in a sliding way, the sliding plate divides two working chambers into an expansion chamber and a compression chamber, and the expansion chamber and the compression chamber are respectively provided with a suction port and an exhaust port. The compressor has the advantages of reducing leakage, obviously improving volumetric efficiency, and obtaining higher output pressure with fewer components and simple process, and having foundation for batch production.

Description

technical field [0001] The invention relates to the fields of gas compression, fluid delivery and vacuum pumping, in particular to a double-rotor translational rotary compression device. Background technique [0002] Gas compressors, fluid pumps and vacuum pumps are important general purpose compression machinery. At present, rolling piston compression machinery and rotor compression machinery, as representatives of the second generation of compression machinery, both have a crescent-shaped working chamber; the crescent-shaped working chamber is separated into an expansion chamber and a compression chamber by a slide plate; the rotating parts (rotor or Translational piston) changes the volume of the expansion chamber and the compression chamber to realize the suction (liquid) and exhaust (liquid) of the compression machine. However, there is a problem in these two compression machines, that is, the sliding plate extends into the working chamber to isolate the expansion cham...

AI Technical Summary

Problems solved by technology

However, the piston and the slide plate are integrated, which is difficult to process; the reciprocating space of the slide plate needs to be reserved inside the cylinder, which makes the cylinder bulky and easy to deform; due to structural limitations, the compression heat and friction heat generated by the machine cannot be quickly Discharge, poor heat dissipation performance

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